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CERTFR-2026-AVI-1027
Vulnerability from certfr_avis - Published: 2026-08-14 - Updated: 2026-08-14
De multiples vulnérabilités ont été découvertes dans le noyau Linux d'Ubuntu. Certaines d'entre elles permettent à un attaquant de provoquer une élévation de privilèges, un déni de service à distance et un problème de sécurité non spécifié par l'éditeur.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
References
| Title | Publication Time | Tags | ||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||||||||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Ubuntu 16.04 ESM",
"product": {
"name": "Ubuntu",
"vendor": {
"name": "Ubuntu",
"scada": false
}
}
},
{
"description": "Ubuntu 26.04 LTS",
"product": {
"name": "Ubuntu",
"vendor": {
"name": "Ubuntu",
"scada": false
}
}
},
{
"description": "Ubuntu 24.04 LTS",
"product": {
"name": "Ubuntu",
"vendor": {
"name": "Ubuntu",
"scada": false
}
}
},
{
"description": "Ubuntu 14.04 ESM",
"product": {
"name": "Ubuntu",
"vendor": {
"name": "Ubuntu",
"scada": false
}
}
},
{
"description": "Ubuntu 22.04 LTS",
"product": {
"name": "Ubuntu",
"vendor": {
"name": "Ubuntu",
"scada": false
}
}
}
],
"affected_systems_content": "",
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [
{
"name": "CVE-2026-46325",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46325"
},
{
"name": "CVE-2026-43198",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43198"
},
{
"name": "CVE-2026-46119",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46119"
},
{
"name": "CVE-2026-43414",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43414"
},
{
"name": "CVE-2023-52646",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-52646"
},
{
"name": "CVE-2026-52955",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-52955"
},
{
"name": "CVE-2025-27558",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-27558"
},
{
"name": "CVE-2026-53002",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-53002"
},
{
"name": "CVE-2021-47202",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-47202"
},
{
"name": "CVE-2026-31402",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31402"
},
{
"name": "CVE-2026-31685",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31685"
},
{
"name": "CVE-2026-31405",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31405"
},
{
"name": "CVE-2026-53260",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-53260"
},
{
"name": "CVE-2026-45988",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-45988"
},
{
"name": "CVE-2021-47117",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-47117"
},
{
"name": "CVE-2026-31448",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31448"
},
{
"name": "CVE-2026-52989",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-52989"
},
{
"name": "CVE-2026-52924",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-52924"
},
{
"name": "CVE-2026-43011",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43011"
},
{
"name": "CVE-2026-43465",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43465"
},
{
"name": "CVE-2026-53224",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-53224"
},
{
"name": "CVE-2026-43284",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43284"
},
{
"name": "CVE-2026-53146",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-53146"
},
{
"name": "CVE-2024-56643",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-56643"
},
{
"name": "CVE-2026-46113",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46113"
},
{
"name": "CVE-2026-46137",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46137"
},
{
"name": "CVE-2026-53150",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-53150"
},
{
"name": "CVE-2026-31668",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31668"
},
{
"name": "CVE-2026-53147",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-53147"
},
{
"name": "CVE-2026-46331",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46331"
},
{
"name": "CVE-2026-52931",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-52931"
},
{
"name": "CVE-2026-53006",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-53006"
},
{
"name": "CVE-2026-43503",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43503"
},
{
"name": "CVE-2026-31659",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31659"
},
{
"name": "CVE-2026-53149",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-53149"
},
{
"name": "CVE-2026-53176",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-53176"
},
{
"name": "CVE-2026-43493",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43493"
},
{
"name": "CVE-2026-43383",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43383"
},
{
"name": "CVE-2026-43499",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43499"
},
{
"name": "CVE-2026-53131",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-53131"
},
{
"name": "CVE-2026-46043",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46043"
},
{
"name": "CVE-2024-38612",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-38612"
},
{
"name": "CVE-2026-43197",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43197"
},
{
"name": "CVE-2026-53088",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-53088"
},
{
"name": "CVE-2026-46242",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46242"
},
{
"name": "CVE-2026-52914",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-52914"
},
{
"name": "CVE-2026-53225",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-53225"
},
{
"name": "CVE-2026-46243",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46243"
},
{
"name": "CVE-2026-31705",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31705"
},
{
"name": "CVE-2026-53086",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-53086"
},
{
"name": "CVE-2026-43407",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43407"
},
{
"name": "CVE-2026-53186",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-53186"
},
{
"name": "CVE-2026-53148",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-53148"
},
{
"name": "CVE-2026-43378",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43378"
},
{
"name": "CVE-2026-43379",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43379"
},
{
"name": "CVE-2026-46266",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46266"
},
{
"name": "CVE-2026-53228",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-53228"
},
{
"name": "CVE-2026-31607",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31607"
},
{
"name": "CVE-2026-53212",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-53212"
},
{
"name": "CVE-2026-31636",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31636"
},
{
"name": "CVE-2021-47378",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-47378"
},
{
"name": "CVE-2026-31637",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31637"
},
{
"name": "CVE-2026-53247",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-53247"
},
{
"name": "CVE-2026-31414",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31414"
},
{
"name": "CVE-2026-53221",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-53221"
},
{
"name": "CVE-2026-31682",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31682"
},
{
"name": "CVE-2026-53215",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-53215"
},
{
"name": "CVE-2026-53216",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-53216"
},
{
"name": "CVE-2026-23455",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23455"
},
{
"name": "CVE-2026-53359",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-53359"
},
{
"name": "CVE-2026-52986",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-52986"
},
{
"name": "CVE-2021-47354",
"url": "https://www.cve.org/CVERecord?id=CVE-2021-47354"
},
{
"name": "CVE-2026-53045",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-53045"
},
{
"name": "CVE-2026-43037",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43037"
},
{
"name": "CVE-2026-43083",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43083"
},
{
"name": "CVE-2026-31649",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31649"
},
{
"name": "CVE-2026-23272",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23272"
},
{
"name": "CVE-2026-53175",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-53175"
},
{
"name": "CVE-2026-31589",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31589"
},
{
"name": "CVE-2026-53246",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-53246"
},
{
"name": "CVE-2026-31657",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31657"
},
{
"name": "CVE-2026-53151",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-53151"
},
{
"name": "CVE-2026-31633",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31633"
},
{
"name": "CVE-2026-43038",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43038"
},
{
"name": "CVE-2026-31501",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31501"
},
{
"name": "CVE-2026-52982",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-52982"
}
],
"initial_release_date": "2026-08-14T00:00:00",
"last_revision_date": "2026-08-14T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-1027",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-08-14T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \u00e0 distance"
},
{
"description": "Non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur"
},
{
"description": "\u00c9l\u00e9vation de privil\u00e8ges"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans le noyau Linux d\u0027Ubuntu. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer une \u00e9l\u00e9vation de privil\u00e8ges, un d\u00e9ni de service \u00e0 distance et un probl\u00e8me de s\u00e9curit\u00e9 non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans le noyau Linux d\u0027Ubuntu",
"vendor_advisories": [
{
"published_at": "2026-08-13",
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-8630-2",
"url": "https://ubuntu.com/security/notices/USN-8630-2"
},
{
"published_at": "2026-08-13",
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-8530-2",
"url": "https://ubuntu.com/security/notices/USN-8530-2"
},
{
"published_at": "2026-08-13",
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-8631-3",
"url": "https://ubuntu.com/security/notices/USN-8631-3"
},
{
"published_at": "2026-08-12",
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-8635-1",
"url": "https://ubuntu.com/security/notices/USN-8635-1"
},
{
"published_at": "2026-08-13",
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-8637-1",
"url": "https://ubuntu.com/security/notices/USN-8637-1"
},
{
"published_at": "2026-08-13",
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-8633-2",
"url": "https://ubuntu.com/security/notices/USN-8633-2"
},
{
"published_at": "2026-08-13",
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-8631-2",
"url": "https://ubuntu.com/security/notices/USN-8631-2"
},
{
"published_at": "2026-08-13",
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-8548-2",
"url": "https://ubuntu.com/security/notices/USN-8548-2"
},
{
"published_at": "2026-08-12",
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-8636-1",
"url": "https://ubuntu.com/security/notices/USN-8636-1"
},
{
"published_at": "2026-08-13",
"title": "Bulletin de s\u00e9curit\u00e9 Ubuntu USN-8529-2",
"url": "https://ubuntu.com/security/notices/USN-8529-2"
}
]
}
CVE-2026-43083 (GCVE-0-2026-43083)
Vulnerability from cvelistv5 – Published: 2026-05-06 07:40 – Updated: 2026-08-05 12:25
VLAI
EPSS
VEX
Title
net: ioam6: fix OOB and missing lock
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: ioam6: fix OOB and missing lock
When trace->type.bit6 is set:
if (trace->type.bit6) {
...
queue = skb_get_tx_queue(dev, skb);
qdisc = rcu_dereference(queue->qdisc);
This code can lead to an out-of-bounds access of the dev->_tx[] array
when is_input is true. In such a case, the packet is on the RX path and
skb->queue_mapping contains the RX queue index of the ingress device. If
the ingress device has more RX queues than the egress device (dev) has
TX queues, skb_get_queue_mapping(skb) will exceed dev->num_tx_queues.
Add a check to avoid this situation since skb_get_tx_queue() does not
clamp the index. This issue has also revealed that per queue visibility
cannot be accurate and will be replaced later as a new feature.
While at it, add missing lock around qdisc_qstats_qlen_backlog(). The
function __ioam6_fill_trace_data() is called from both softirq and
process contexts, hence the use of spin_lock_bh() here.
Severity
9.1 (Critical)
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
b63c5478e9cb1d1504eb02d9dac827ad24612b32 , < 6d1d9ed9b409e0662241e3d245d574a18f643494
(git)
Affected: b63c5478e9cb1d1504eb02d9dac827ad24612b32 , < 95a1334748c95dd15546056280ade0c4b8dd7b78 (git) Affected: b63c5478e9cb1d1504eb02d9dac827ad24612b32 , < b30b1675aa2bcf0491fd3830b051df4e08a7c8ca (git) |
|
| Linux | Linux |
Affected:
5.17
Unaffected: 0 , < 5.17 (semver) Unaffected: 6.18.24 , ≤ 6.18.* (semver) Unaffected: 6.19.14 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix) |
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"net/ipv6/ioam6.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "6d1d9ed9b409e0662241e3d245d574a18f643494",
"status": "affected",
"version": "b63c5478e9cb1d1504eb02d9dac827ad24612b32",
"versionType": "git"
},
{
"lessThan": "95a1334748c95dd15546056280ade0c4b8dd7b78",
"status": "affected",
"version": "b63c5478e9cb1d1504eb02d9dac827ad24612b32",
"versionType": "git"
},
{
"lessThan": "b30b1675aa2bcf0491fd3830b051df4e08a7c8ca",
"status": "affected",
"version": "b63c5478e9cb1d1504eb02d9dac827ad24612b32",
"versionType": "git"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"net/ipv6/ioam6.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.17"
},
{
"lessThan": "5.17",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.24",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.19.*",
"status": "unaffected",
"version": "6.19.14",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.0",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.18.24",
"versionStartIncluding": "5.17",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.19.14",
"versionStartIncluding": "5.17",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.0",
"versionStartIncluding": "5.17",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ioam6: fix OOB and missing lock\n\nWhen trace-\u003etype.bit6 is set:\n\n if (trace-\u003etype.bit6) {\n ...\n queue = skb_get_tx_queue(dev, skb);\n qdisc = rcu_dereference(queue-\u003eqdisc);\n\nThis code can lead to an out-of-bounds access of the dev-\u003e_tx[] array\nwhen is_input is true. In such a case, the packet is on the RX path and\nskb-\u003equeue_mapping contains the RX queue index of the ingress device. If\nthe ingress device has more RX queues than the egress device (dev) has\nTX queues, skb_get_queue_mapping(skb) will exceed dev-\u003enum_tx_queues.\nAdd a check to avoid this situation since skb_get_tx_queue() does not\nclamp the index. This issue has also revealed that per queue visibility\ncannot be accurate and will be replaced later as a new feature.\n\nWhile at it, add missing lock around qdisc_qstats_qlen_backlog(). The\nfunction __ioam6_fill_trace_data() is called from both softirq and\nprocess contexts, hence the use of spin_lock_bh() here."
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CVE-2026-43197 (GCVE-0-2026-43197)
Vulnerability from cvelistv5 – Published: 2026-05-06 11:28 – Updated: 2026-08-09 18:34
VLAI
EPSS
VEX
Title
netconsole: avoid OOB reads, msg is not nul-terminated
Summary
In the Linux kernel, the following vulnerability has been resolved:
netconsole: avoid OOB reads, msg is not nul-terminated
msg passed to netconsole from the console subsystem is not guaranteed
to be nul-terminated. Before recent
commit 7eab73b18630 ("netconsole: convert to NBCON console infrastructure")
the message would be placed in printk_shared_pbufs, a static global
buffer, so KASAN had harder time catching OOB accesses. Now we see:
printk: console [netcon_ext0] enabled
BUG: KASAN: slab-out-of-bounds in string+0x1f7/0x240
Read of size 1 at addr ffff88813b6d4c00 by task pr/netcon_ext0/594
CPU: 65 UID: 0 PID: 594 Comm: pr/netcon_ext0 Not tainted 6.19.0-11754-g4246fd6547c9
Call Trace:
kasan_report+0xe4/0x120
string+0x1f7/0x240
vsnprintf+0x655/0xba0
scnprintf+0xba/0x120
netconsole_write+0x3fe/0xa10
nbcon_emit_next_record+0x46e/0x860
nbcon_kthread_func+0x623/0x750
Allocated by task 1:
nbcon_alloc+0x1ea/0x450
register_console+0x26b/0xe10
init_netconsole+0xbb0/0xda0
The buggy address belongs to the object at ffff88813b6d4000
which belongs to the cache kmalloc-4k of size 4096
The buggy address is located 0 bytes to the right of
allocated 3072-byte region [ffff88813b6d4000, ffff88813b6d4c00)
Severity
9.1 (Critical)
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
c62c0a17f9b7398022f9eebe547878033264f81f , < 8fe132c4873f9eb1b86ddbf31216e9d961a0b8b9
(git)
Affected: c62c0a17f9b7398022f9eebe547878033264f81f , < 3126a2f98beaec5a554a1fb31c46db1e8542665e (git) Affected: c62c0a17f9b7398022f9eebe547878033264f81f , < 74ab1456eaa3b2eb986138f9e1f4cb37e73b6f58 (git) Affected: c62c0a17f9b7398022f9eebe547878033264f81f , < 82aec772fca2223bc5774bd9af486fd95766e578 (git) |
|
| Linux | Linux |
Affected:
6.6
Unaffected: 0 , < 6.6 (semver) Unaffected: 6.12.103 , ≤ 6.12.* (semver) Unaffected: 6.18.16 , ≤ 6.18.* (semver) Unaffected: 6.19.6 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix) |
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CVE-2026-43198 (GCVE-0-2026-43198)
Vulnerability from cvelistv5 – Published: 2026-05-06 11:28 – Updated: 2026-08-05 12:26
VLAI
EPSS
VEX
Title
tcp: fix potential race in tcp_v6_syn_recv_sock()
Summary
In the Linux kernel, the following vulnerability has been resolved:
tcp: fix potential race in tcp_v6_syn_recv_sock()
Code in tcp_v6_syn_recv_sock() after the call to tcp_v4_syn_recv_sock()
is done too late.
After tcp_v4_syn_recv_sock(), the child socket is already visible
from TCP ehash table and other cpus might use it.
Since newinet->pinet6 is still pointing to the listener ipv6_pinfo
bad things can happen as syzbot found.
Move the problematic code in tcp_v6_mapped_child_init()
and call this new helper from tcp_v4_syn_recv_sock() before
the ehash insertion.
This allows the removal of one tcp_sync_mss(), since
tcp_v4_syn_recv_sock() will call it with the correct
context.
Severity
9.8 (Critical)
CWE
- CWE-821 - Incorrect Synchronization
Assigner
References
20 references
Impacted products
21 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < fe89b2f05b854847784f91127319172945c1fadd
(git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 7178e2a8027423b2af17ab95df73a749a5b72e5b (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 858d2a4f67ff69e645a43487ef7ea7f28f06deae (git) |
|
| Linux | Linux |
Affected:
2.6.12
Unaffected: 0 , < 2.6.12 (semver) Unaffected: 6.18.16 , ≤ 6.18.* (semver) Unaffected: 6.19.6 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix) |
|
| Red Hat | Red Hat Enterprise Linux 10 |
Unaffected:
0:6.12.0-211.28.1.el10_2 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:10.2 |
|
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support |
Unaffected:
0:6.12.0-55.84.1.el10_0 , < *
(rpm)
cpe:/o:redhat:enterprise_linux_eus:10.0 |
|
| Red Hat | Red Hat Enterprise Linux 7 Extended Lifecycle Support |
Unaffected:
0:3.10.0-1160.155.1.rt56.1307.el7 , < *
(rpm)
cpe:/a:redhat:rhel_extras_rt_els:7 |
|
| Red Hat | Red Hat Enterprise Linux 7 Extended Lifecycle Support |
Unaffected:
0:3.10.0-1160.155.1.el7 , < *
(rpm)
cpe:/o:redhat:rhel_els:7 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
0:4.18.0-553.140.1.rt7.481.el8_10 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:8::nfv |
|
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
0:4.18.0-553.140.1.el8_10 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:8 |
|
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support |
Unaffected:
0:4.18.0-305.197.1.el8_4 , < *
(rpm)
cpe:/o:redhat:rhel_aus:8.4 |
|
| Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On |
Unaffected:
0:4.18.0-305.197.1.el8_4 , < *
(rpm)
cpe:/o:redhat:rhel_eus_long_life:8.4 |
|
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support |
Unaffected:
0:4.18.0-372.199.1.el8_6 , < *
(rpm)
cpe:/o:redhat:rhel_aus:8.6 |
|
| Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On |
Unaffected:
0:4.18.0-372.199.1.el8_6 , < *
(rpm)
cpe:/o:redhat:rhel_eus_long_life:8.6 |
|
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service |
Unaffected:
0:4.18.0-477.150.1.el8_8 , < *
(rpm)
cpe:/o:redhat:rhel_tus:8.8 |
|
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions |
Unaffected:
0:4.18.0-477.150.1.el8_8 , < *
(rpm)
cpe:/o:redhat:rhel_e4s:8.8 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
0:5.14.0-687.20.1.el9_8 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9 cpe:/o:redhat:enterprise_linux:9 |
|
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions |
Unaffected:
0:5.14.0-284.179.1.el9_2 , < *
(rpm)
cpe:/a:redhat:rhel_e4s:9.2 |
|
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions |
Unaffected:
0:5.14.0-284.179.1.rt14.464.el9_2 , < *
(rpm)
cpe:/a:redhat:rhel_e4s:9.2::nfv |
|
| Red Hat | Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions |
Unaffected:
0:5.14.0-427.135.1.el9_4 , < *
(rpm)
cpe:/a:redhat:rhel_e4s:9.4 |
|
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support |
Unaffected:
0:5.14.0-570.125.1.el9_6 , < *
(rpm)
cpe:/a:redhat:rhel_eus:9.6 |
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9 |
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CVE-2026-43284 (GCVE-0-2026-43284)
Vulnerability from cvelistv5 – Published: 2026-05-08 07:21 – Updated: 2026-08-05 12:27
VLAI
EPSS
VEX
Title
xfrm: esp: avoid in-place decrypt on shared skb frags
Summary
In the Linux kernel, the following vulnerability has been resolved:
xfrm: esp: avoid in-place decrypt on shared skb frags
MSG_SPLICE_PAGES can attach pages from a pipe directly to an skb. TCP
marks such skbs with SKBFL_SHARED_FRAG after skb_splice_from_iter(),
so later paths that may modify packet data can first make a private
copy. The IPv4/IPv6 datagram append paths did not set this flag when
splicing pages into UDP skbs.
That leaves an ESP-in-UDP packet made from shared pipe pages looking
like an ordinary uncloned nonlinear skb. ESP input then takes the no-COW
fast path for uncloned skbs without a frag_list and decrypts in place
over data that is not owned privately by the skb.
Mark IPv4/IPv6 datagram splice frags with SKBFL_SHARED_FRAG, matching
TCP. Also make ESP input fall back to skb_cow_data() when the flag is
present, so ESP does not decrypt externally backed frags in place.
Private nonlinear skb frags still use the existing fast path.
This intentionally does not change ESP output. In esp_output_head(),
the path that appends the ESP trailer to existing skb tailroom without
calling skb_cow_data() is not reachable for nonlinear skbs:
skb_tailroom() returns zero when skb->data_len is nonzero, while ESP
tailen is positive. Thus ESP output will either use the separate
destination-frag path or fall back to skb_cow_data().
Severity
8.8 (High)
7.8 (High)
7.8 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-08 00:00 UTC
CWE
- CWE-123 - Write-what-where Condition
Assigner
References
60 references
Impacted products
46 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
cac2661c53f35cbe651bef9b07026a5a05ab8ce0 , < a6cb440f274a22456ef3e86b457344f1678f38f9
(git)
Affected: cac2661c53f35cbe651bef9b07026a5a05ab8ce0 , < ab8b995323e5237041472d07e5055f5f7dcdf15b (git) Affected: cac2661c53f35cbe651bef9b07026a5a05ab8ce0 , < fe785bb3a8096dffcc4048a85cd0c83337eeecad (git) Affected: cac2661c53f35cbe651bef9b07026a5a05ab8ce0 , < 5d55c7336f8032d434adcc5fab987ccc93a44aec (git) Affected: cac2661c53f35cbe651bef9b07026a5a05ab8ce0 , < 8253aab4659ca16116b522203c2a6b18dccacea7 (git) Affected: cac2661c53f35cbe651bef9b07026a5a05ab8ce0 , < 50ed1e7873100f77abad20fd31c51029bc49cd03 (git) Affected: cac2661c53f35cbe651bef9b07026a5a05ab8ce0 , < b54edf1e9a3fd3491bdcb82a21f8d21315271e0d (git) Affected: cac2661c53f35cbe651bef9b07026a5a05ab8ce0 , < 71a1d9d985d26716f74d21f18ee8cac821b06e97 (git) Affected: cac2661c53f35cbe651bef9b07026a5a05ab8ce0 , < 52646cbd00e765a6db9c3afe9535f26218276034 (git) Affected: cac2661c53f35cbe651bef9b07026a5a05ab8ce0 , < f4c50a4034e62ab75f1d5cdd191dd5f9c77fdff4 (git) |
|
| Linux | Linux |
Affected:
4.11
Unaffected: 0 , < 4.11 (semver) Unaffected: 5.10.255 , ≤ 5.10.* (semver) Unaffected: 5.15.205 , ≤ 5.15.* (semver) Unaffected: 5.15.206 , ≤ 5.15.* (semver) Unaffected: 6.1.171 , ≤ 6.1.* (semver) Unaffected: 6.1.172 , ≤ 6.1.* (semver) Unaffected: 6.6.138 , ≤ 6.6.* (semver) Unaffected: 6.12.87 , ≤ 6.12.* (semver) Unaffected: 6.18.28 , ≤ 6.18.* (semver) Unaffected: 7.0.5 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix) |
|
| Red Hat | NVIDIA for RHEL 10 |
Unaffected:
0:6.12.0-211.7.el10nv , < *
(rpm)
Unaffected: 0:6.12.0-231.12.el10nv , < * (rpm) cpe:/a:redhat:enterprise_linux_nvidia:10::el10 |
|
| Red Hat | Red Hat Enterprise Linux 10 |
Unaffected:
0:6.12.0-124.56.1.el10_1 , < *
(rpm)
Unaffected: 0:6.12.0-211.16.1.el10_2 , < * (rpm) Unaffected: 0:6.12.0-211.7.3.el10_2 , < * (rpm) cpe:/o:redhat:enterprise_linux:10.1 cpe:/o:redhat:enterprise_linux:10.2 |
|
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support |
Unaffected:
0:6.12.0-55.73.1.el10_0 , < *
(rpm)
cpe:/o:redhat:enterprise_linux_eus:10.0 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
0:4.18.0-553.124.1.rt7.465.el8_10 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:8::nfv |
|
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
0:4.18.0-553.124.1.el8_10 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:8 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8 |
|
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support |
Unaffected:
0:4.18.0-305.191.1.el8_4 , < *
(rpm)
cpe:/o:redhat:rhel_aus:8.4 |
|
| Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On |
Unaffected:
0:4.18.0-305.191.1.el8_4 , < *
(rpm)
cpe:/o:redhat:rhel_eus_long_life:8.4 |
|
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support |
Unaffected:
0:4.18.0-372.192.1.el8_6 , < *
(rpm)
cpe:/o:redhat:rhel_aus:8.6 |
|
| Red Hat | Red Hat Enterprise Linux 8.6 Telecommunications Update Service |
Unaffected:
0:4.18.0-372.192.1.el8_6 , < *
(rpm)
cpe:/o:redhat:rhel_tus:8.6 |
|
| Red Hat | Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions |
Unaffected:
0:4.18.0-372.192.1.el8_6 , < *
(rpm)
cpe:/o:redhat:rhel_e4s:8.6 |
|
| Red Hat | Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions |
cpe:/o:redhat:rhel_e4s:8.6 |
|
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service |
Unaffected:
0:4.18.0-477.140.1.el8_8 , < *
(rpm)
cpe:/o:redhat:rhel_tus:8.8 |
|
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions |
Unaffected:
0:4.18.0-477.140.1.el8_8 , < *
(rpm)
cpe:/o:redhat:rhel_e4s:8.8 |
|
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions |
cpe:/o:redhat:rhel_e4s:8.8 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
0:5.14.0-611.55.1.el9_7 , < *
(rpm)
Unaffected: 0:5.14.0-687.10.1.el9_8 , < * (rpm) Unaffected: 0:5.14.0-687.5.3.el9_8 , < * (rpm) cpe:/a:redhat:enterprise_linux:9 cpe:/o:redhat:enterprise_linux:9 |
|
| Red Hat | Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions |
Unaffected:
0:5.14.0-70.179.1.el9_0 , < *
(rpm)
cpe:/a:redhat:rhel_e4s:9.0 |
|
| Red Hat | Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions |
Unaffected:
0:5.14.0-70.179.1.rt21.251.el9_0 , < *
(rpm)
cpe:/a:redhat:rhel_e4s:9.0::nfv |
|
| Red Hat | Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions |
cpe:/o:redhat:rhel_e4s:9.0 |
|
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions |
Unaffected:
0:5.14.0-284.170.1.el9_2 , < *
(rpm)
cpe:/a:redhat:rhel_e4s:9.2 |
|
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions |
Unaffected:
0:5.14.0-284.170.1.rt14.455.el9_2 , < *
(rpm)
cpe:/a:redhat:rhel_e4s:9.2::nfv |
|
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions |
cpe:/o:redhat:rhel_e4s:9.2 |
|
| Red Hat | Red Hat Enterprise Linux 9.4 Extended Update Support |
Unaffected:
0:5.14.0-427.125.1.el9_4 , < *
(rpm)
cpe:/a:redhat:rhel_eus:9.4 |
|
| Red Hat | Red Hat Enterprise Linux 9.4 Extended Update Support |
cpe:/o:redhat:rhel_eus:9.4 |
|
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support |
Unaffected:
0:5.14.0-570.113.1.el9_6 , < *
(rpm)
cpe:/a:redhat:rhel_eus:9.6 |
|
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support |
cpe:/o:redhat:rhel_eus:9.6 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.12 |
Unaffected:
412.86.202605111404-0 , < *
(rpm)
Unaffected: 412.86.202605271418-0 , < * (rpm) cpe:/a:redhat:openshift:4.12::el8 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.13 |
Unaffected:
413.92.202606160406-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.13::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.14 |
Unaffected:
414.92.202605111427-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.14::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.15 |
Unaffected:
415.92.202606030318-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.15::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.16 |
Unaffected:
416.94.202605101426-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.16::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.17 |
Unaffected:
417.94.202606250942-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.17::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.18 |
Unaffected:
418.94.202605101521-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.18::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.19 |
Unaffected:
4.19.9.6.202605110225-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.19::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.20 |
Unaffected:
4.20.9.6.202605110206-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.20::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.21 |
Unaffected:
4.21.9.6.202605110143-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.21::el9 |
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6 |
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7 |
|
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.6 , < *
(custom)
|
|
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
|
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP |
Affected:
V3.1.6 , < *
(custom)
|
|
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
|
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.6 , < *
(custom)
|
|
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP |
Affected:
V3.1.5 , < *
(custom)
|
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2026-05-26T17:32:27.236Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "http://www.openwall.com/lists/oss-security/2026/05/08/7"
},
{
"url": "http://www.openwall.com/lists/oss-security/2026/05/13/6"
},
{
"url": "http://www.openwall.com/lists/oss-security/2026/05/14/2"
},
{
"url": "http://www.openwall.com/lists/oss-security/2026/05/14/4"
},
{
"url": "https://www.vicarius.io/vsociety/posts/cve-2026-43284-detection-script-dirty-frag-linux-kernel-local-privilege-escalation"
},
{
"url": "https://www.vicarius.io/vsociety/posts/cve-2026-43284-mitigation-script-dirty-frag-linux-kernel-local-privilege-escalation"
}
],
"title": "CVE Program Container",
"x_generator": {
"engine": "ADPogram 0.0.1"
}
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-43284",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-08T00:00:00+00:00",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-123",
"description": "CWE-123 Write-what-where Condition",
"lang": "en",
"type": "CWE"
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}
],
"providerMetadata": {
"dateUpdated": "2026-05-09T03:55:46.272Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://github.com/V4bel/dirtyfrag"
}
],
"title": "CISA ADP Vulnrichment"
},
{
"affected": [
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:enterprise_linux_nvidia:10::el10"
],
"defaultStatus": "affected",
"packageName": "kernel",
"product": "NVIDIA for RHEL 10",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:6.12.0-211.7.el10nv",
"versionType": "rpm"
},
{
"lessThan": "*",
"status": "unaffected",
"version": "0:6.12.0-231.12.el10nv",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
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"cpe:/o:redhat:enterprise_linux:10.2"
],
"defaultStatus": "affected",
"packageName": "kernel",
"product": "Red Hat Enterprise Linux 10",
"vendor": "Red Hat",
"versions": [
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"version": "0:6.12.0-124.56.1.el10_1",
"versionType": "rpm"
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{
"lessThan": "*",
"status": "unaffected",
"version": "0:6.12.0-211.16.1.el10_2",
"versionType": "rpm"
},
{
"lessThan": "*",
"status": "unaffected",
"version": "0:6.12.0-211.7.3.el10_2",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux_eus:10.0"
],
"defaultStatus": "affected",
"packageName": "kernel",
"product": "Red Hat Enterprise Linux 10.0 Extended Update Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:6.12.0-55.73.1.el10_0",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:enterprise_linux:8::nfv"
],
"defaultStatus": "affected",
"packageName": "kernel-rt",
"product": "Red Hat Enterprise Linux 8",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:4.18.0-553.124.1.rt7.465.el8_10",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:8"
],
"defaultStatus": "affected",
"packageName": "kernel",
"product": "Red Hat Enterprise Linux 8",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:4.18.0-553.124.1.el8_10",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:8"
],
"defaultStatus": "unaffected",
"packageName": "kpatch-patch",
"product": "Red Hat Enterprise Linux 8",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:rhel_aus:8.4"
],
"defaultStatus": "affected",
"packageName": "kernel",
"product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:4.18.0-305.191.1.el8_4",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:rhel_eus_long_life:8.4"
],
"defaultStatus": "affected",
"packageName": "kernel",
"product": "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:4.18.0-305.191.1.el8_4",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:rhel_aus:8.6"
],
"defaultStatus": "affected",
"packageName": "kernel",
"product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:4.18.0-372.192.1.el8_6",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:rhel_tus:8.6"
],
"defaultStatus": "affected",
"packageName": "kernel",
"product": "Red Hat Enterprise Linux 8.6 Telecommunications Update Service",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:4.18.0-372.192.1.el8_6",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:rhel_e4s:8.6"
],
"defaultStatus": "affected",
"packageName": "kernel",
"product": "Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions",
"vendor": "Red Hat",
"versions": [
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"lessThan": "*",
"status": "unaffected",
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"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:rhel_e4s:8.6"
],
"defaultStatus": "unaffected",
"packageName": "kpatch-patch",
"product": "Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:rhel_tus:8.8"
],
"defaultStatus": "affected",
"packageName": "kernel",
"product": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:4.18.0-477.140.1.el8_8",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:rhel_e4s:8.8"
],
"defaultStatus": "affected",
"packageName": "kernel",
"product": "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:4.18.0-477.140.1.el8_8",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:rhel_e4s:8.8"
],
"defaultStatus": "unaffected",
"packageName": "kpatch-patch",
"product": "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:enterprise_linux:9",
"cpe:/o:redhat:enterprise_linux:9"
],
"defaultStatus": "affected",
"packageName": "kernel",
"product": "Red Hat Enterprise Linux 9",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:5.14.0-611.55.1.el9_7",
"versionType": "rpm"
},
{
"lessThan": "*",
"status": "unaffected",
"version": "0:5.14.0-687.10.1.el9_8",
"versionType": "rpm"
},
{
"lessThan": "*",
"status": "unaffected",
"version": "0:5.14.0-687.5.3.el9_8",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_e4s:9.0"
],
"defaultStatus": "affected",
"packageName": "kernel",
"product": "Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:5.14.0-70.179.1.el9_0",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhel_e4s:9.0::nfv"
],
"defaultStatus": "affected",
"packageName": "kernel-rt",
"product": "Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:5.14.0-70.179.1.rt21.251.el9_0",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:rhel_e4s:9.0"
],
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CVE-2026-43378 (GCVE-0-2026-43378)
Vulnerability from cvelistv5 – Published: 2026-05-08 14:21 – Updated: 2026-08-05 12:27
VLAI
EPSS
VEX
Title
smb: server: fix use-after-free in smb2_open()
Summary
In the Linux kernel, the following vulnerability has been resolved:
smb: server: fix use-after-free in smb2_open()
The opinfo pointer obtained via rcu_dereference(fp->f_opinfo) is
dereferenced after rcu_read_unlock(), creating a use-after-free
window.
Severity
9.8 (Critical)
Assigner
References
6 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 , < e1b21e6066615e7d3d3a7aa2677e415e563fd7cc
(git)
Affected: e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 , < b720c84087cb547f23ce03eab93568c1769e4556 (git) Affected: e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 , < 54b48ae83de8bb06e65079d96368efe359d4909c (git) Affected: e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 , < 8f5b1a7cb009a93c48e9e334a2f59a660f9afc07 (git) Affected: e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 , < 190e5f808e8058640b408ccfed25440b441a718a (git) Affected: e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9 , < 1e689a56173827669a35da7cb2a3c78ed5c53680 (git) |
|
| Linux | Linux |
Affected:
5.15
Unaffected: 0 , < 5.15 (semver) Unaffected: 6.1.167 , ≤ 6.1.* (semver) Unaffected: 6.6.130 , ≤ 6.6.* (semver) Unaffected: 6.12.78 , ≤ 6.12.* (semver) Unaffected: 6.18.19 , ≤ 6.18.* (semver) Unaffected: 6.19.9 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix) |
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CVE-2026-43379 (GCVE-0-2026-43379)
Vulnerability from cvelistv5 – Published: 2026-05-08 14:21 – Updated: 2026-08-05 12:27
VLAI
EPSS
VEX
Title
ksmbd: fix use-after-free in smb_lazy_parent_lease_break_close()
Summary
In the Linux kernel, the following vulnerability has been resolved:
ksmbd: fix use-after-free in smb_lazy_parent_lease_break_close()
opinfo pointer obtained via rcu_dereference(fp->f_opinfo) is being
accessed after rcu_read_unlock() has been called. This creates a
race condition where the memory could be freed by a concurrent
writer between the unlock and the subsequent pointer dereferences
(opinfo->is_lease, etc.), leading to a use-after-free.
Severity
9.8 (Critical)
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
27b40b7bfcd121fe13a150ffe11957630cf49246 , < bf4d66d72e4a9e268c1012c331ce9eaedb5e2086
(git)
Affected: 5fb282ba4fef8985a5acf2b32681f2ec07732561 , < 960699317d39f46611f4ebeb69edc567c1f4e6b6 (git) Affected: 5fb282ba4fef8985a5acf2b32681f2ec07732561 , < dbbd328cf58261ca239756fe1c0d10c9518d3399 (git) Affected: 5fb282ba4fef8985a5acf2b32681f2ec07732561 , < b3568347c51c46e2cabc356bc34676df98296619 (git) Affected: 5fb282ba4fef8985a5acf2b32681f2ec07732561 , < eac3361e3d5dd8067b3258c69615888eb45e9f25 (git) Affected: 6.6.32 , < 6.6.130 (semver) |
|
| Linux | Linux |
Affected:
6.9
Unaffected: 0 , < 6.9 (semver) Unaffected: 6.6.130 , ≤ 6.6.* (semver) Unaffected: 6.12.78 , ≤ 6.12.* (semver) Unaffected: 6.18.19 , ≤ 6.18.* (semver) Unaffected: 6.19.9 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix) |
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CVE-2026-43383 (GCVE-0-2026-43383)
Vulnerability from cvelistv5 – Published: 2026-05-08 14:21 – Updated: 2026-08-05 12:27
VLAI
EPSS
VEX
Title
net/tcp-md5: Fix MAC comparison to be constant-time
Summary
In the Linux kernel, the following vulnerability has been resolved:
net/tcp-md5: Fix MAC comparison to be constant-time
To prevent timing attacks, MACs need to be compared in constant
time. Use the appropriate helper function for this.
Severity
9.4 (Critical)
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
cfb6eeb4c860592edd123fdea908d23c6ad1c7dc , < 821c8751fdeecdeecabeb11704dd33439c9e4bbc
(git)
Affected: cfb6eeb4c860592edd123fdea908d23c6ad1c7dc , < ff44ec94d4fc8348600a69de0a8fa1102c23bce8 (git) Affected: cfb6eeb4c860592edd123fdea908d23c6ad1c7dc , < 345a9530756528d7ca407663d659c3c40e75c3dd (git) Affected: cfb6eeb4c860592edd123fdea908d23c6ad1c7dc , < 5d305a95130a8d08b9545e47f1e18d29d59866cb (git) Affected: cfb6eeb4c860592edd123fdea908d23c6ad1c7dc , < 02669e2a4d207068edce7e8b5fafd85822018ce6 (git) Affected: cfb6eeb4c860592edd123fdea908d23c6ad1c7dc , < ae3831b44f477de048287493e184fc3ff913b624 (git) Affected: cfb6eeb4c860592edd123fdea908d23c6ad1c7dc , < b502e97e29d791ff7a8051f29a414535739be218 (git) Affected: cfb6eeb4c860592edd123fdea908d23c6ad1c7dc , < 46d0d6f50dab706637f4c18a470aac20a21900d3 (git) |
|
| Linux | Linux |
Affected:
2.6.20
Unaffected: 0 , < 2.6.20 (semver) Unaffected: 5.10.253 , ≤ 5.10.* (semver) Unaffected: 5.15.210 , ≤ 5.15.* (semver) Unaffected: 6.1.167 , ≤ 6.1.* (semver) Unaffected: 6.6.130 , ≤ 6.6.* (semver) Unaffected: 6.12.78 , ≤ 6.12.* (semver) Unaffected: 6.18.19 , ≤ 6.18.* (semver) Unaffected: 6.19.9 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix) |
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"value": "AV:N - The vulnerable comparisons are reached by remotely supplied IPv4/IPv6 TCP packets carrying the TCP MD5 option on TCP-MD5-protected sockets, including Internet-facing BGP deployments.\nAC:L - The attacker can send repeated chosen TCP segments to the verifier and use the non-constant-time comparison as a timing oracle; there is no race or memory-layout dependency beyond the target having TCP MD5 enabled/configured.\nPR:N - The vulnerable receive path is reached before successful TCP MD5 authentication, by unauthenticated network packets; no local account or kernel privilege is required.\nUI:N - No victim user action is required once a TCP-MD5-protected service such as a BGP listener/session is exposed.\nS:U - The impact remains within the same kernel/network security authority enforcing TCP authentication for the protected connection.\nC:L - The timing side channel leaks MAC comparison progress and can enable forgery of authenticated packets, potentially exposing data available through the protected TCP session, but it does not disclose kernel memory or the MD5 key directly.\nI:H - Forging valid TCP MD5 segments can bypass the transport authentication protecting BGP or similar sessions, enabling injection or manipulation of authenticated TCP/application data.\nA:H - Forged authenticated RSTs or disruptive TCP/application traffic can tear down protected routing sessions or otherwise cause significant service disruption."
}
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"cveId": "CVE-2026-43383",
"datePublished": "2026-05-08T14:21:30.704Z",
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CVE-2026-43407 (GCVE-0-2026-43407)
Vulnerability from cvelistv5 – Published: 2026-05-08 14:21 – Updated: 2026-08-05 12:27
VLAI
EPSS
VEX
Title
libceph: Fix potential out-of-bounds access in ceph_handle_auth_reply()
Summary
In the Linux kernel, the following vulnerability has been resolved:
libceph: Fix potential out-of-bounds access in ceph_handle_auth_reply()
This patch fixes an out-of-bounds access in ceph_handle_auth_reply()
that can be triggered by a message of type CEPH_MSG_AUTH_REPLY. In
ceph_handle_auth_reply(), the value of the payload_len field of such a
message is stored in a variable of type int. A value greater than
INT_MAX leads to an integer overflow and is interpreted as a negative
value. This leads to decrementing the pointer address by this value and
subsequently accessing it because ceph_decode_need() only checks that
the memory access does not exceed the end address of the allocation.
This patch fixes the issue by changing the data type of payload_len to
u32. Additionally, the data type of result_msg_len is changed to u32,
as it is also a variable holding a non-negative length.
Also, an additional layer of sanity checks is introduced, ensuring that
directly after reading it from the message, payload_len and
result_msg_len are not greater than the overall segment length.
BUG: KASAN: slab-out-of-bounds in ceph_handle_auth_reply+0x642/0x7a0 [libceph]
Read of size 4 at addr ffff88811404df14 by task kworker/20:1/262
CPU: 20 UID: 0 PID: 262 Comm: kworker/20:1 Not tainted 6.19.2 #5 PREEMPT(voluntary)
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
Workqueue: ceph-msgr ceph_con_workfn [libceph]
Call Trace:
<TASK>
dump_stack_lvl+0x76/0xa0
print_report+0xd1/0x620
? __pfx__raw_spin_lock_irqsave+0x10/0x10
? kasan_complete_mode_report_info+0x72/0x210
kasan_report+0xe7/0x130
? ceph_handle_auth_reply+0x642/0x7a0 [libceph]
? ceph_handle_auth_reply+0x642/0x7a0 [libceph]
__asan_report_load_n_noabort+0xf/0x20
ceph_handle_auth_reply+0x642/0x7a0 [libceph]
mon_dispatch+0x973/0x23d0 [libceph]
? apparmor_socket_recvmsg+0x6b/0xa0
? __pfx_mon_dispatch+0x10/0x10 [libceph]
? __kasan_check_write+0x14/0x30i
? mutex_unlock+0x7f/0xd0
? __pfx_mutex_unlock+0x10/0x10
? __pfx_do_recvmsg+0x10/0x10 [libceph]
ceph_con_process_message+0x1f1/0x650 [libceph]
process_message+0x1e/0x450 [libceph]
ceph_con_v2_try_read+0x2e48/0x6c80 [libceph]
? __pfx_ceph_con_v2_try_read+0x10/0x10 [libceph]
? save_fpregs_to_fpstate+0xb0/0x230
? raw_spin_rq_unlock+0x17/0xa0
? finish_task_switch.isra.0+0x13b/0x760
? __switch_to+0x385/0xda0
? __kasan_check_write+0x14/0x30
? mutex_lock+0x8d/0xe0
? __pfx_mutex_lock+0x10/0x10
ceph_con_workfn+0x248/0x10c0 [libceph]
process_one_work+0x629/0xf80
? __kasan_check_write+0x14/0x30
worker_thread+0x87f/0x1570
? __pfx__raw_spin_lock_irqsave+0x10/0x10
? __pfx_try_to_wake_up+0x10/0x10
? kasan_print_address_stack_frame+0x1f7/0x280
? __pfx_worker_thread+0x10/0x10
kthread+0x396/0x830
? __pfx__raw_spin_lock_irq+0x10/0x10
? __pfx_kthread+0x10/0x10
? __kasan_check_write+0x14/0x30
? recalc_sigpending+0x180/0x210
? __pfx_kthread+0x10/0x10
ret_from_fork+0x3f7/0x610
? __pfx_ret_from_fork+0x10/0x10
? __switch_to+0x385/0xda0
? __pfx_kthread+0x10/0x10
ret_from_fork_asm+0x1a/0x30
</TASK>
[ idryomov: replace if statements with ceph_decode_need() for
payload_len and result_msg_len ]
Severity
9.1 (Critical)
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc , < ea080b21092590122c3f971cf588932cdbf47847
(git)
Affected: 4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc , < edc678e5cd11730a2834b43071d8923f05bc334d (git) Affected: 4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc , < 6cee34d6669fe176b4259131adb1a145c939b472 (git) Affected: 4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc , < 8bb87547e92dcf0928ed763c60e0ac8d733c3656 (git) Affected: 4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc , < ed024d2f4c79c0eb2464df0fb640610ac301f9a0 (git) Affected: 4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc , < f9da5c1bbac5c8e33259fe00ed7347438fffa969 (git) Affected: 4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc , < 9f9e2297f45fc2d2524eb104c289d69ddef95665 (git) Affected: 4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc , < b282c43ed156ae15ea76748fc15cd5c39dc9ab72 (git) |
|
| Linux | Linux |
Affected:
2.6.34
Unaffected: 0 , < 2.6.34 (semver) Unaffected: 5.10.253 , ≤ 5.10.* (semver) Unaffected: 5.15.203 , ≤ 5.15.* (semver) Unaffected: 6.1.167 , ≤ 6.1.* (semver) Unaffected: 6.6.130 , ≤ 6.6.* (semver) Unaffected: 6.12.78 , ≤ 6.12.* (semver) Unaffected: 6.18.19 , ≤ 6.18.* (semver) Unaffected: 6.19.9 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix) |
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},
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"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nlibceph: Fix potential out-of-bounds access in ceph_handle_auth_reply()\n\nThis patch fixes an out-of-bounds access in ceph_handle_auth_reply()\nthat can be triggered by a message of type CEPH_MSG_AUTH_REPLY. In\nceph_handle_auth_reply(), the value of the payload_len field of such a\nmessage is stored in a variable of type int. A value greater than\nINT_MAX leads to an integer overflow and is interpreted as a negative\nvalue. This leads to decrementing the pointer address by this value and\nsubsequently accessing it because ceph_decode_need() only checks that\nthe memory access does not exceed the end address of the allocation.\n\nThis patch fixes the issue by changing the data type of payload_len to\nu32. Additionally, the data type of result_msg_len is changed to u32,\nas it is also a variable holding a non-negative length.\n\nAlso, an additional layer of sanity checks is introduced, ensuring that\ndirectly after reading it from the message, payload_len and\nresult_msg_len are not greater than the overall segment length.\n\nBUG: KASAN: slab-out-of-bounds in ceph_handle_auth_reply+0x642/0x7a0 [libceph]\nRead of size 4 at addr ffff88811404df14 by task kworker/20:1/262\n\nCPU: 20 UID: 0 PID: 262 Comm: kworker/20:1 Not tainted 6.19.2 #5 PREEMPT(voluntary)\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014\nWorkqueue: ceph-msgr ceph_con_workfn [libceph]\nCall Trace:\n \u003cTASK\u003e\n dump_stack_lvl+0x76/0xa0\n print_report+0xd1/0x620\n ? __pfx__raw_spin_lock_irqsave+0x10/0x10\n ? kasan_complete_mode_report_info+0x72/0x210\n kasan_report+0xe7/0x130\n ? ceph_handle_auth_reply+0x642/0x7a0 [libceph]\n ? ceph_handle_auth_reply+0x642/0x7a0 [libceph]\n __asan_report_load_n_noabort+0xf/0x20\n ceph_handle_auth_reply+0x642/0x7a0 [libceph]\n mon_dispatch+0x973/0x23d0 [libceph]\n ? apparmor_socket_recvmsg+0x6b/0xa0\n ? __pfx_mon_dispatch+0x10/0x10 [libceph]\n ? __kasan_check_write+0x14/0x30i\n ? mutex_unlock+0x7f/0xd0\n ? __pfx_mutex_unlock+0x10/0x10\n ? __pfx_do_recvmsg+0x10/0x10 [libceph]\n ceph_con_process_message+0x1f1/0x650 [libceph]\n process_message+0x1e/0x450 [libceph]\n ceph_con_v2_try_read+0x2e48/0x6c80 [libceph]\n ? __pfx_ceph_con_v2_try_read+0x10/0x10 [libceph]\n ? save_fpregs_to_fpstate+0xb0/0x230\n ? raw_spin_rq_unlock+0x17/0xa0\n ? finish_task_switch.isra.0+0x13b/0x760\n ? __switch_to+0x385/0xda0\n ? __kasan_check_write+0x14/0x30\n ? mutex_lock+0x8d/0xe0\n ? __pfx_mutex_lock+0x10/0x10\n ceph_con_workfn+0x248/0x10c0 [libceph]\n process_one_work+0x629/0xf80\n ? __kasan_check_write+0x14/0x30\n worker_thread+0x87f/0x1570\n ? __pfx__raw_spin_lock_irqsave+0x10/0x10\n ? __pfx_try_to_wake_up+0x10/0x10\n ? kasan_print_address_stack_frame+0x1f7/0x280\n ? __pfx_worker_thread+0x10/0x10\n kthread+0x396/0x830\n ? __pfx__raw_spin_lock_irq+0x10/0x10\n ? __pfx_kthread+0x10/0x10\n ? __kasan_check_write+0x14/0x30\n ? recalc_sigpending+0x180/0x210\n ? __pfx_kthread+0x10/0x10\n ret_from_fork+0x3f7/0x610\n ? __pfx_ret_from_fork+0x10/0x10\n ? __switch_to+0x385/0xda0\n ? __pfx_kthread+0x10/0x10\n ret_from_fork_asm+0x1a/0x30\n \u003c/TASK\u003e\n\n[ idryomov: replace if statements with ceph_decode_need() for\n payload_len and result_msg_len ]"
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 9.1,
"baseSeverity": "CRITICAL",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
"version": "3.1"
},
"scenarios": [
{
"lang": "en",
"value": "AV:N - The vulnerable `CEPH_MSG_AUTH_REPLY` is parsed from data received over a Ceph messenger TCP connection from a monitor peer. A malicious or compromised monitor, or an attacker in position to impersonate one, can supply the crafted network message remotely.\nAC:L - The trigger is a deterministic malformed length field in a single auth reply, with no race or unusual heap state required to reach the out-of-bounds read. The attacker controls the relevant message contents.\nPR:N - The vulnerable reply is processed by the kernel client from the network peer during monitor/auth session handling, before any attacker-controlled credentials are required on the target. No local account or target privileges are needed.\nUI:N - Once a Ceph client connects or reconnects to the monitor peer, the attacker can send the crafted reply without further victim action. This is server-to-client network input processing.\nS:U - The impact is within the Linux kernel/client security authority. It does not cross a hypervisor, IOMMU, or separate authorization scope boundary.\nC:H - The signed length overflow lets the attacker move the decode pointer before the message buffer and perform an out-of-bounds kernel memory read at an attacker-influenced offset. Although the immediate read is small, it is not confined to a fixed in-object field, so high confidentiality impact is the safer defensible choice.\nI:N - The bug is an out-of-bounds read caused by pointer underflow; the investigated path does not provide an out-of-bounds write or direct memory corruption primitive. The downstream auth handlers reject the inverted buffer range or ignore the payload.\nA:H - The commit includes a KASAN slab-out-of-bounds report in `ceph_handle_auth_reply()`, and attacker-controlled pointer underflow can fault or oops the kernel worker processing the connection. A malicious peer can repeat the malformed reply to disrupt affected clients."
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T12:27:50.423Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/ea080b21092590122c3f971cf588932cdbf47847"
},
{
"url": "https://git.kernel.org/stable/c/edc678e5cd11730a2834b43071d8923f05bc334d"
},
{
"url": "https://git.kernel.org/stable/c/6cee34d6669fe176b4259131adb1a145c939b472"
},
{
"url": "https://git.kernel.org/stable/c/8bb87547e92dcf0928ed763c60e0ac8d733c3656"
},
{
"url": "https://git.kernel.org/stable/c/ed024d2f4c79c0eb2464df0fb640610ac301f9a0"
},
{
"url": "https://git.kernel.org/stable/c/f9da5c1bbac5c8e33259fe00ed7347438fffa969"
},
{
"url": "https://git.kernel.org/stable/c/9f9e2297f45fc2d2524eb104c289d69ddef95665"
},
{
"url": "https://git.kernel.org/stable/c/b282c43ed156ae15ea76748fc15cd5c39dc9ab72"
}
],
"title": "libceph: Fix potential out-of-bounds access in ceph_handle_auth_reply()",
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}
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"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-43407",
"datePublished": "2026-05-08T14:21:46.927Z",
"dateReserved": "2026-05-01T14:12:56.008Z",
"dateUpdated": "2026-08-05T12:27:50.423Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-43414 (GCVE-0-2026-43414)
Vulnerability from cvelistv5 – Published: 2026-05-08 14:21 – Updated: 2026-08-05 12:27
VLAI
EPSS
VEX
Title
scsi: qla2xxx: Completely fix fcport double free
Summary
In the Linux kernel, the following vulnerability has been resolved:
scsi: qla2xxx: Completely fix fcport double free
In qla24xx_els_dcmd_iocb() sp->free is set to qla2x00_els_dcmd_sp_free().
When an error happens, this function is called by qla2x00_sp_release(),
when kref_put() releases the first and the last reference.
qla2x00_els_dcmd_sp_free() frees fcport by calling qla2x00_free_fcport().
Doing it one more time after kref_put() is a bad idea.
Severity
9.8 (Critical)
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
4895009c4bb72f71f2e682f1e7d2c2d96e482087 , < d48ea85463f5b34f7b92ea0a13eddf1ab993da7b
(git)
Affected: 4895009c4bb72f71f2e682f1e7d2c2d96e482087 , < c0b7da13a04bd70ef6070bfb9ea85f582294560a (git) Affected: 7861213201838480dc222634c56fb6db113d010d (git) Affected: 3b9d72442adfbc9ddb0f76dd1b03977b3a578b16 (git) Affected: ef23850940d9a52c39936d27254824ccf5e9b6bd (git) Affected: 6c6bf6cacf9461f8d301cfac4f9c175d80cbcc63 (git) Affected: cd10dee1f07a782f5aa05703c55299ca86a85ee4 (git) Affected: b03e626bd6d3f0684f56ee1890d70fc9ca991c04 (git) Affected: 282877633b25d67021a34169c5b5519b1d4ef65e (git) Affected: f85af9f1aa5e2f53694a6cbe72010f754b5ff862 (git) Affected: 9b43d2884b54d415caab48878b526dfe2ae9921b (git) Affected: 846fb9f112f618ec6ae181d8dae7961652574774 (git) Affected: 5.15.154 , < 5.16 (semver) Affected: 6.1.84 , < 6.2 (semver) Affected: 6.6.24 , < 6.7 (semver) Affected: 6.7.12 , < 6.8 (semver) Affected: 6.8.3 , < 6.9 (semver) |
|
| Linux | Linux |
Affected:
6.9
Unaffected: 0 , < 6.9 (semver) Unaffected: 6.19.9 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix) |
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"value": "AV:N - The vulnerable ELS direct-command path is reachable from a remote Fibre Channel initiator through qla2xxx target-mode ELS/session-deletion handling, not only through the root-only sysfs issue_logo knob. Using the highest reasonable SAN deployment, attacker-controlled FC frames from another host on the storage fabric make this network-reachable.\nAC:L - The bug is a deterministic double free once the ELS direct-command error path is hit after kref_put(), and the attacker can plausibly drive repeated logins/logouts/session teardown plus resource pressure to make qla2x00_start_sp() fail. No uncontrollable race is required for the memory corruption once that path is reached.\nPR:N - The FC target path processes remote ELS events before any Linux credential or capability check on the victim, so the attacker does not need a local account or kernel privilege. Fabric access/zoning is environmental network access, not privileges on the vulnerable system.\nUI:N - No victim user action is required; remote FC protocol activity can drive the target-mode session deletion and LOGO path. The sysfs path requires an admin write, but it is not the highest-severity reachable path.\nS:U - The corruption occurs inside the same kernel/driver security authority and does not cross a VM, IOMMU, or other separate security boundary. A kernel compromise or crash remains unchanged scope.\nC:H - This is kernel heap double-free/use-after-free style memory corruption of an fc_port object. Under the required overestimation rule, such corruption can be leveraged for information disclosure through heap reuse/read primitives.\nI:H - A double free of a kernel heap object can corrupt allocator state or enable controlled reuse of freed memory, making arbitrary write or control-flow compromise defensible. Therefore integrity impact is High.\nA:H - Related qla2xxx fcport double-free reports show immediate SLUB/kernel BUG crashes, and this fix removes another remaining double-free error path. A remotely triggerable kernel crash is High availability impact."
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CVE-2026-43465 (GCVE-0-2026-43465)
Vulnerability from cvelistv5 – Published: 2026-05-08 14:22 – Updated: 2026-08-05 12:28
VLAI
EPSS
VEX
Title
net/mlx5e: RX, Fix XDP multi-buf frag counting for striding RQ
Summary
In the Linux kernel, the following vulnerability has been resolved:
net/mlx5e: RX, Fix XDP multi-buf frag counting for striding RQ
XDP multi-buf programs can modify the layout of the XDP buffer when the
program calls bpf_xdp_pull_data() or bpf_xdp_adjust_tail(). The
referenced commit in the fixes tag corrected the assumption in the mlx5
driver that the XDP buffer layout doesn't change during a program
execution. However, this fix introduced another issue: the dropped
fragments still need to be counted on the driver side to avoid page
fragment reference counting issues.
The issue was discovered by the drivers/net/xdp.py selftest,
more specifically the test_xdp_native_tx_mb:
- The mlx5 driver allocates a page_pool page and initializes it with
a frag counter of 64 (pp_ref_count=64) and the internal frag counter
to 0.
- The test sends one packet with no payload.
- On RX (mlx5e_skb_from_cqe_mpwrq_nonlinear()), mlx5 configures the XDP
buffer with the packet data starting in the first fragment which is the
page mentioned above.
- The XDP program runs and calls bpf_xdp_pull_data() which moves the
header into the linear part of the XDP buffer. As the packet doesn't
contain more data, the program drops the tail fragment since it no
longer contains any payload (pp_ref_count=63).
- mlx5 device skips counting this fragment. Internal frag counter
remains 0.
- mlx5 releases all 64 fragments of the page but page pp_ref_count is
63 => negative reference counting error.
Resulting splat during the test:
WARNING: CPU: 0 PID: 188225 at ./include/net/page_pool/helpers.h:297 mlx5e_page_release_fragmented.isra.0+0xbd/0xe0 [mlx5_core]
Modules linked in: [...]
CPU: 0 UID: 0 PID: 188225 Comm: ip Not tainted 6.18.0-rc7_for_upstream_min_debug_2025_12_08_11_44 #1 NONE
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
RIP: 0010:mlx5e_page_release_fragmented.isra.0+0xbd/0xe0 [mlx5_core]
[...]
Call Trace:
<TASK>
mlx5e_free_rx_mpwqe+0x20a/0x250 [mlx5_core]
mlx5e_dealloc_rx_mpwqe+0x37/0xb0 [mlx5_core]
mlx5e_free_rx_descs+0x11a/0x170 [mlx5_core]
mlx5e_close_rq+0x78/0xa0 [mlx5_core]
mlx5e_close_queues+0x46/0x2a0 [mlx5_core]
mlx5e_close_channel+0x24/0x90 [mlx5_core]
mlx5e_close_channels+0x5d/0xf0 [mlx5_core]
mlx5e_safe_switch_params+0x2ec/0x380 [mlx5_core]
mlx5e_change_mtu+0x11d/0x490 [mlx5_core]
mlx5e_change_nic_mtu+0x19/0x30 [mlx5_core]
netif_set_mtu_ext+0xfc/0x240
do_setlink.isra.0+0x226/0x1100
rtnl_newlink+0x7a9/0xba0
rtnetlink_rcv_msg+0x220/0x3c0
netlink_rcv_skb+0x4b/0xf0
netlink_unicast+0x255/0x380
netlink_sendmsg+0x1f3/0x420
__sock_sendmsg+0x38/0x60
____sys_sendmsg+0x1e8/0x240
___sys_sendmsg+0x7c/0xb0
[...]
__sys_sendmsg+0x5f/0xb0
do_syscall_64+0x55/0xc70
The problem applies for XDP_PASS as well which is handled in a different
code path in the driver.
This patch fixes the issue by doing page frag counting on all the
original XDP buffer fragments for all relevant XDP actions (XDP_TX ,
XDP_REDIRECT and XDP_PASS). This is basically reverting to the original
counting before the commit in the fixes tag.
As frag_page is still pointing to the original tail, the nr_frags
parameter to xdp_update_skb_frags_info() needs to be calculated
in a different way to reflect the new nr_frags.
Severity
9.8 (Critical)
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
87bcef158ac1faca1bd7e0104588e8e2956d10be , < 7d7342a18fadcdb70a63b3c930dc63528ce51832
(git)
Affected: 87bcef158ac1faca1bd7e0104588e8e2956d10be , < 043bd62f748bc9fd98154037aa598cffbd3c667c (git) Affected: 87bcef158ac1faca1bd7e0104588e8e2956d10be , < db25c42c2e1f9c0d136420fff5e5700f7e771a6f (git) Affected: 8b051d7f530e8a5237da242fbeafef02fec6b813 (git) Affected: cb9edd583e23979ee546981be963ad5f217e8b18 (git) Affected: f2557d7fa38e9475b38588f5c124476091480f53 (git) Affected: 6.6.115 , < 6.7 (semver) Affected: 6.12.56 , < 6.13 (semver) Affected: 6.17.6 , < 6.18 (semver) |
|
| Linux | Linux |
Affected:
6.18
Unaffected: 0 , < 6.18 (semver) Unaffected: 6.18.19 , ≤ 6.18.* (semver) Unaffected: 6.19.9 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix) |
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"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5e: RX, Fix XDP multi-buf frag counting for striding RQ\n\nXDP multi-buf programs can modify the layout of the XDP buffer when the\nprogram calls bpf_xdp_pull_data() or bpf_xdp_adjust_tail(). The\nreferenced commit in the fixes tag corrected the assumption in the mlx5\ndriver that the XDP buffer layout doesn\u0027t change during a program\nexecution. However, this fix introduced another issue: the dropped\nfragments still need to be counted on the driver side to avoid page\nfragment reference counting issues.\n\nThe issue was discovered by the drivers/net/xdp.py selftest,\nmore specifically the test_xdp_native_tx_mb:\n- The mlx5 driver allocates a page_pool page and initializes it with\n a frag counter of 64 (pp_ref_count=64) and the internal frag counter\n to 0.\n- The test sends one packet with no payload.\n- On RX (mlx5e_skb_from_cqe_mpwrq_nonlinear()), mlx5 configures the XDP\n buffer with the packet data starting in the first fragment which is the\n page mentioned above.\n- The XDP program runs and calls bpf_xdp_pull_data() which moves the\n header into the linear part of the XDP buffer. As the packet doesn\u0027t\n contain more data, the program drops the tail fragment since it no\n longer contains any payload (pp_ref_count=63).\n- mlx5 device skips counting this fragment. Internal frag counter\n remains 0.\n- mlx5 releases all 64 fragments of the page but page pp_ref_count is\n 63 =\u003e negative reference counting error.\n\nResulting splat during the test:\n\n WARNING: CPU: 0 PID: 188225 at ./include/net/page_pool/helpers.h:297 mlx5e_page_release_fragmented.isra.0+0xbd/0xe0 [mlx5_core]\n Modules linked in: [...]\n CPU: 0 UID: 0 PID: 188225 Comm: ip Not tainted 6.18.0-rc7_for_upstream_min_debug_2025_12_08_11_44 #1 NONE\n Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\n RIP: 0010:mlx5e_page_release_fragmented.isra.0+0xbd/0xe0 [mlx5_core]\n [...]\n Call Trace:\n \u003cTASK\u003e\n mlx5e_free_rx_mpwqe+0x20a/0x250 [mlx5_core]\n mlx5e_dealloc_rx_mpwqe+0x37/0xb0 [mlx5_core]\n mlx5e_free_rx_descs+0x11a/0x170 [mlx5_core]\n mlx5e_close_rq+0x78/0xa0 [mlx5_core]\n mlx5e_close_queues+0x46/0x2a0 [mlx5_core]\n mlx5e_close_channel+0x24/0x90 [mlx5_core]\n mlx5e_close_channels+0x5d/0xf0 [mlx5_core]\n mlx5e_safe_switch_params+0x2ec/0x380 [mlx5_core]\n mlx5e_change_mtu+0x11d/0x490 [mlx5_core]\n mlx5e_change_nic_mtu+0x19/0x30 [mlx5_core]\n netif_set_mtu_ext+0xfc/0x240\n do_setlink.isra.0+0x226/0x1100\n rtnl_newlink+0x7a9/0xba0\n rtnetlink_rcv_msg+0x220/0x3c0\n netlink_rcv_skb+0x4b/0xf0\n netlink_unicast+0x255/0x380\n netlink_sendmsg+0x1f3/0x420\n __sock_sendmsg+0x38/0x60\n ____sys_sendmsg+0x1e8/0x240\n ___sys_sendmsg+0x7c/0xb0\n [...]\n __sys_sendmsg+0x5f/0xb0\n do_syscall_64+0x55/0xc70\n\nThe problem applies for XDP_PASS as well which is handled in a different\ncode path in the driver.\n\nThis patch fixes the issue by doing page frag counting on all the\noriginal XDP buffer fragments for all relevant XDP actions (XDP_TX ,\nXDP_REDIRECT and XDP_PASS). This is basically reverting to the original\ncounting before the commit in the fixes tag.\n\nAs frag_page is still pointing to the original tail, the nr_frags\nparameter to xdp_update_skb_frags_info() needs to be calculated\nin a different way to reflect the new nr_frags."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"scenarios": [
{
"lang": "en",
"value": "AV:N - The vulnerable mlx5e RX path is reached by received packets on an affected Mellanox interface in a deployment running an XDP multi-buffer program. A remote peer can trigger the fragment-accounting path by sending packets processed by that XDP program.\nAC:L - Once the affected striding RQ and XDP multi-buffer program are in use, triggering only requires packets that cause bpf_xdp_pull_data() or bpf_xdp_adjust_tail() to drop fragments. There is no race or probabilistic condition in the vulnerable path.\nPR:N - The attacker does not need privileges to send the triggering network traffic to a configured affected interface. Loading the XDP program is an environmental precondition for the vulnerable deployment, not an action required from the attacker.\nUI:N - No victim user action is required after the affected interface and XDP program are configured. Packet reception drives the vulnerable path automatically in NAPI RX processing.\nS:U - The impact remains within the same kernel and host security authority. This is not a VM escape, IOMMU bypass, or cross-scope boundary violation.\nC:H - The bug corrupts page-pool fragment lifetime accounting, which can leave pages recycled or referenced incorrectly while packet buffers still point to them. Under the required higher-severity assumption, this memory lifetime corruption can expose kernel or packet memory.\nI:H - Incorrect page-pool reference accounting can cause stale or prematurely recycled packet pages to be reused while still referenced, creating a kernel memory corruption condition. Such lifetime corruption is defensibly treated as high integrity impact.\nA:H - The observed failure is a page_pool refcount underflow warning, and repeated triggering can corrupt RX page accounting, exhaust resources, or panic systems configured with panic_on_warn. This provides high availability impact."
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T12:28:08.583Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/7d7342a18fadcdb70a63b3c930dc63528ce51832"
},
{
"url": "https://git.kernel.org/stable/c/043bd62f748bc9fd98154037aa598cffbd3c667c"
},
{
"url": "https://git.kernel.org/stable/c/db25c42c2e1f9c0d136420fff5e5700f7e771a6f"
}
],
"title": "net/mlx5e: RX, Fix XDP multi-buf frag counting for striding RQ",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-43465",
"datePublished": "2026-05-08T14:22:26.822Z",
"dateReserved": "2026-05-01T14:12:56.011Z",
"dateUpdated": "2026-08-05T12:28:08.583Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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