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CERTFR-2026-AVI-0664
Vulnerability from certfr_avis - Published: 2026-05-29 - Updated: 2026-05-29
De multiples vulnérabilités ont été découvertes dans le noyau Linux de SUSE. Certaines d'entre elles permettent à un attaquant de provoquer une élévation de privilèges, une atteinte à la confidentialité des données et une atteinte à l'intégrité des données.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
| Vendor | Product | Description | ||
|---|---|---|---|---|
| SUSE | N/A | SUSE Linux Micro 6.1 | ||
| SUSE | N/A | SUSE Linux Enterprise High Performance Computing 12 SP5 | ||
| SUSE | N/A | SUSE Linux Enterprise Server 12 SP5 | ||
| SUSE | N/A | SUSE Linux Enterprise Server 12 SP5 LTSS | ||
| SUSE | N/A | SUSE Linux Micro Extras 6.1 | ||
| SUSE | N/A | SUSE Linux Enterprise Server for SAP applications 16.0 | ||
| SUSE | N/A | SUSE Linux Enterprise Live Patching 12-SP5 | ||
| SUSE | N/A | SUSE Linux Micro 6.2 | ||
| SUSE | N/A | SUSE Linux Enterprise Server 16.0 | ||
| SUSE | N/A | SUSE Linux Enterprise Server for SAP Applications 12 SP5 | ||
| SUSE | N/A | SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security |
References
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "SUSE Linux Micro 6.1",
"product": {
"name": "N/A",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise High Performance Computing 12 SP5",
"product": {
"name": "N/A",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise Server 12 SP5",
"product": {
"name": "N/A",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise Server 12 SP5 LTSS",
"product": {
"name": "N/A",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Micro Extras 6.1",
"product": {
"name": "N/A",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise Server for SAP applications 16.0",
"product": {
"name": "N/A",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise Live Patching 12-SP5",
"product": {
"name": "N/A",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Micro 6.2",
"product": {
"name": "N/A",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise Server 16.0",
"product": {
"name": "N/A",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise Server for SAP Applications 12 SP5",
"product": {
"name": "N/A",
"vendor": {
"name": "SUSE",
"scada": false
}
}
},
{
"description": "SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security",
"product": {
"name": "N/A",
"vendor": {
"name": "SUSE",
"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-2026-31402",
"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-2026-23269",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23269"
},
{
"name": "CVE-2026-31416",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31416"
},
{
"name": "CVE-2026-23293",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23293"
},
{
"name": "CVE-2023-20585",
"url": "https://www.cve.org/CVERecord?id=CVE-2023-20585"
},
{
"name": "CVE-2026-23290",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23290"
},
{
"name": "CVE-2026-31787",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31787"
},
{
"name": "CVE-2026-23468",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23468"
},
{
"name": "CVE-2026-23461",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23461"
},
{
"name": "CVE-2026-23340",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23340"
},
{
"name": "CVE-2026-31738",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31738"
},
{
"name": "CVE-2026-43284",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43284"
},
{
"name": "CVE-2026-43025",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43025"
},
{
"name": "CVE-2026-23268",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23268"
},
{
"name": "CVE-2026-31408",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31408"
},
{
"name": "CVE-2026-31524",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31524"
},
{
"name": "CVE-2026-23209",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23209"
},
{
"name": "CVE-2026-31681",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31681"
},
{
"name": "CVE-2026-23456",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23456"
},
{
"name": "CVE-2026-23457",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23457"
},
{
"name": "CVE-2026-31496",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31496"
},
{
"name": "CVE-2026-23408",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23408"
},
{
"name": "CVE-2026-43334",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43334"
},
{
"name": "CVE-2026-23391",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23391"
},
{
"name": "CVE-2026-23462",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23462"
},
{
"name": "CVE-2026-23273",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23273"
},
{
"name": "CVE-2026-31422",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31422"
},
{
"name": "CVE-2024-50082",
"url": "https://www.cve.org/CVERecord?id=CVE-2024-50082"
},
{
"name": "CVE-2026-43264",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43264"
},
{
"name": "CVE-2026-31427",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31427"
},
{
"name": "CVE-2026-23472",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23472"
},
{
"name": "CVE-2025-71108",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-71108"
},
{
"name": "CVE-2026-31423",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31423"
},
{
"name": "CVE-2026-23216",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23216"
},
{
"name": "CVE-2026-43437",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43437"
},
{
"name": "CVE-2026-31675",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31675"
},
{
"name": "CVE-2026-23193",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23193"
},
{
"name": "CVE-2026-43126",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43126"
},
{
"name": "CVE-2026-31403",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31403"
},
{
"name": "CVE-2026-31400",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31400"
},
{
"name": "CVE-2026-31512",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31512"
},
{
"name": "CVE-2026-31504",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31504"
},
{
"name": "CVE-2025-71118",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-71118"
},
{
"name": "CVE-2026-31607",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31607"
},
{
"name": "CVE-2026-23405",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23405"
},
{
"name": "CVE-2026-23403",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23403"
},
{
"name": "CVE-2026-43190",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43190"
},
{
"name": "CVE-2026-23292",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23292"
},
{
"name": "CVE-2022-50053",
"url": "https://www.cve.org/CVERecord?id=CVE-2022-50053"
},
{
"name": "CVE-2026-23455",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23455"
},
{
"name": "CVE-2026-43110",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43110"
},
{
"name": "CVE-2026-31507",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31507"
},
{
"name": "CVE-2026-46333",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46333"
},
{
"name": "CVE-2026-31411",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31411"
},
{
"name": "CVE-2026-31428",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31428"
},
{
"name": "CVE-2026-23449",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23449"
},
{
"name": "CVE-2026-23442",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23442"
},
{
"name": "CVE-2026-23458",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23458"
},
{
"name": "CVE-2026-31649",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31649"
},
{
"name": "CVE-2026-31393",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31393"
},
{
"name": "CVE-2026-23404",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23404"
},
{
"name": "CVE-2026-23378",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23378"
},
{
"name": "CVE-2025-68185",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-68185"
},
{
"name": "CVE-2026-31700",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31700"
},
{
"name": "CVE-2026-23312",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23312"
},
{
"name": "CVE-2026-31424",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31424"
},
{
"name": "CVE-2026-31407",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31407"
},
{
"name": "CVE-2026-31602",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31602"
},
{
"name": "CVE-2026-31425",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31425"
},
{
"name": "CVE-2025-71238",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-71238"
},
{
"name": "CVE-2026-43255",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43255"
},
{
"name": "CVE-2026-23276",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23276"
},
{
"name": "CVE-2026-43088",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43088"
},
{
"name": "CVE-2026-31667",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31667"
}
],
"initial_release_date": "2026-05-29T00:00:00",
"last_revision_date": "2026-05-29T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-0664",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-05-29T00:00:00.000000"
}
],
"risks": [
{
"description": "Atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es"
},
{
"description": "Non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur"
},
{
"description": "D\u00e9ni de service"
},
{
"description": "Contournement de la politique de s\u00e9curit\u00e9"
},
{
"description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
},
{
"description": "\u00c9l\u00e9vation de privil\u00e8ges"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans le noyau Linux de SUSE. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer une \u00e9l\u00e9vation de privil\u00e8ges, une atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es et une atteinte \u00e0 l\u0027int\u00e9grit\u00e9 des donn\u00e9es.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans le noyau Linux de SUSE",
"vendor_advisories": [
{
"published_at": "2026-05-18",
"title": "Bulletin de s\u00e9curit\u00e9 SUSE SUSE-SU-2026:21818-1",
"url": "https://www.suse.com/support/update/announcement/2026/suse-su-202621818-1"
},
{
"published_at": "2026-05-18",
"title": "Bulletin de s\u00e9curit\u00e9 SUSE SUSE-SU-2026:21816-1",
"url": "https://www.suse.com/support/update/announcement/2026/suse-su-202621816-1"
},
{
"published_at": "2026-05-19",
"title": "Bulletin de s\u00e9curit\u00e9 SUSE suse-su-202621720-1",
"url": "https://www.suse.com/support/update/announcement/2026/suse-su-202621720-1"
},
{
"published_at": "2026-05-18",
"title": "Bulletin de s\u00e9curit\u00e9 SUSE SUSE-SU-2026:21775-1",
"url": "https://www.suse.com/support/update/announcement/2026/suse-su-202621775-1"
},
{
"published_at": "2026-05-26",
"title": "Bulletin de s\u00e9curit\u00e9 SUSE SUSE-SU-2026:2068-1",
"url": "https://www.suse.com/support/update/announcement/2026/suse-su-20262068-1"
},
{
"published_at": "2026-05-18",
"title": "Bulletin de s\u00e9curit\u00e9 SUSE SUSE-SU-2026:21771-1",
"url": "https://www.suse.com/support/update/announcement/2026/suse-su-202621771-1"
},
{
"published_at": "2026-05-18",
"title": "Bulletin de s\u00e9curit\u00e9 SUSE SUSE-SU-2026:21777-1",
"url": "https://www.suse.com/support/update/announcement/2026/suse-su-202621777-1"
},
{
"published_at": "2026-05-18",
"title": "Bulletin de s\u00e9curit\u00e9 SUSE SUSE-SU-2026:21772-1",
"url": "https://www.suse.com/support/update/announcement/2026/suse-su-202621772-1"
},
{
"published_at": "2026-05-19",
"title": "Bulletin de s\u00e9curit\u00e9 SUSE SUSE-SU-2026:21743-1",
"url": "https://www.suse.com/support/update/announcement/2026/suse-su-202621743-1"
},
{
"published_at": "2026-05-19",
"title": "Bulletin de s\u00e9curit\u00e9 SUSE suse-su-202621721-1",
"url": "https://www.suse.com/support/update/announcement/2026/suse-su-202621721-1"
},
{
"published_at": "2026-05-18",
"title": "Bulletin de s\u00e9curit\u00e9 SUSE SUSE-SU-2026:21774-1",
"url": "https://www.suse.com/support/update/announcement/2026/suse-su-202621774-1"
},
{
"published_at": "2026-05-18",
"title": "Bulletin de s\u00e9curit\u00e9 SUSE SUSE-SU-2026:21766-1",
"url": "https://www.suse.com/support/update/announcement/2026/suse-su-202621766-1"
},
{
"published_at": "2026-05-18",
"title": "Bulletin de s\u00e9curit\u00e9 SUSE SUSE-SU-2026:21767-1",
"url": "https://www.suse.com/support/update/announcement/2026/suse-su-202621767-1"
},
{
"published_at": "2026-05-19",
"title": "Bulletin de s\u00e9curit\u00e9 SUSE suse-su-202621723-1",
"url": "https://www.suse.com/support/update/announcement/2026/suse-su-202621723-1"
},
{
"published_at": "2026-05-18",
"title": "Bulletin de s\u00e9curit\u00e9 SUSE SUSE-SU-2026:21817-1",
"url": "https://www.suse.com/support/update/announcement/2026/suse-su-202621817-1"
},
{
"published_at": "2026-05-18",
"title": "Bulletin de s\u00e9curit\u00e9 SUSE SUSE-SU-2026:21765-1",
"url": "https://www.suse.com/support/update/announcement/2026/suse-su-202621765-1"
},
{
"published_at": "2026-05-19",
"title": "Bulletin de s\u00e9curit\u00e9 SUSE SUSE-SU-2026:21745-1",
"url": "https://www.suse.com/support/update/announcement/2026/suse-su-202621745-1"
},
{
"published_at": "2026-05-18",
"title": "Bulletin de s\u00e9curit\u00e9 SUSE SUSE-SU-2026:21778-1",
"url": "https://www.suse.com/support/update/announcement/2026/suse-su-202621778-1"
},
{
"published_at": "2026-05-19",
"title": "Bulletin de s\u00e9curit\u00e9 SUSE SUSE-SU-2026:21734-1",
"url": "https://www.suse.com/support/update/announcement/2026/suse-su-202621734-1"
},
{
"published_at": "2026-05-19",
"title": "Bulletin de s\u00e9curit\u00e9 SUSE suse-su-202621719-1",
"url": "https://www.suse.com/support/update/announcement/2026/suse-su-202621719-1"
},
{
"published_at": "2026-05-18",
"title": "Bulletin de s\u00e9curit\u00e9 SUSE SUSE-SU-2026:21773-1",
"url": "https://www.suse.com/support/update/announcement/2026/suse-su-202621773-1"
},
{
"published_at": "2026-05-18",
"title": "Bulletin de s\u00e9curit\u00e9 SUSE SUSE-SU-2026:21776-1",
"url": "https://www.suse.com/support/update/announcement/2026/suse-su-202621776-1"
},
{
"published_at": "2026-05-19",
"title": "Bulletin de s\u00e9curit\u00e9 SUSE suse-su-202621724-1",
"url": "https://www.suse.com/support/update/announcement/2026/suse-su-202621724-1"
},
{
"published_at": "2026-05-19",
"title": "Bulletin de s\u00e9curit\u00e9 SUSE SUSE-SU-2026:21735-1",
"url": "https://www.suse.com/support/update/announcement/2026/suse-su-202621735-1"
}
]
}
CVE-2026-23268 (GCVE-0-2026-23268)
Vulnerability from cvelistv5 – Published: 2026-03-18 17:54 – Updated: 2026-05-11 22:03
VLAI
EPSS
Title
apparmor: fix unprivileged local user can do privileged policy management
Summary
In the Linux kernel, the following vulnerability has been resolved:
apparmor: fix unprivileged local user can do privileged policy management
An unprivileged local user can load, replace, and remove profiles by
opening the apparmorfs interfaces, via a confused deputy attack, by
passing the opened fd to a privileged process, and getting the
privileged process to write to the interface.
This does require a privileged target that can be manipulated to do
the write for the unprivileged process, but once such access is
achieved full policy management is possible and all the possible
implications that implies: removing confinement, DoS of system or
target applications by denying all execution, by-passing the
unprivileged user namespace restriction, to exploiting kernel bugs for
a local privilege escalation.
The policy management interface can not have its permissions simply
changed from 0666 to 0600 because non-root processes need to be able
to load policy to different policy namespaces.
Instead ensure the task writing the interface has privileges that
are a subset of the task that opened the interface. This is already
done via policy for confined processes, but unconfined can delegate
access to the opened fd, by-passing the usual policy check.
Severity
7.8 (High)
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/a407a078cd41b5261… | |
| https://git.kernel.org/stable/c/4cafce4d6d0a66ec2… | |
| https://git.kernel.org/stable/c/33ee909702e047c94… | |
| https://git.kernel.org/stable/c/17debf5586020790b… | |
| https://git.kernel.org/stable/c/0fc63dd9170643d15… | |
| https://git.kernel.org/stable/c/b60b3f7a35c46b2e0… | |
| https://git.kernel.org/stable/c/b6a94eeca9c6c8f7c… | |
| https://git.kernel.org/stable/c/6601e13e828418794… | |
| https://www.qualys.com/2026/03/10/crack-armor.txt |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
b7fd2c0340eacbee892425e9007647568b7f2a3c , < a407a078cd41b5261b99d822af784bd9f136eb4d
(git)
Affected: b7fd2c0340eacbee892425e9007647568b7f2a3c , < 4cafce4d6d0a66ec27e3af5637c11901d60189fa (git) Affected: b7fd2c0340eacbee892425e9007647568b7f2a3c , < 33ee909702e047c94aaf41d4eea35626d509802c (git) Affected: b7fd2c0340eacbee892425e9007647568b7f2a3c , < 17debf5586020790b5717f96e5e6a3ca5bb961ab (git) Affected: b7fd2c0340eacbee892425e9007647568b7f2a3c , < 0fc63dd9170643d15c25681fca792539e23f4640 (git) Affected: b7fd2c0340eacbee892425e9007647568b7f2a3c , < b60b3f7a35c46b2e0ca934f9c988b8fca06d76c6 (git) Affected: b7fd2c0340eacbee892425e9007647568b7f2a3c , < b6a94eeca9c6c8f7c55ad44c62c98324f51ec596 (git) Affected: b7fd2c0340eacbee892425e9007647568b7f2a3c , < 6601e13e82841879406bf9f369032656f441a425 (git) |
|
| Linux | Linux |
Affected:
4.11
Unaffected: 0 , < 4.11 (semver) Unaffected: 5.10.253 , ≤ 5.10.* (semver) Unaffected: 5.15.203 , ≤ 5.15.* (semver) Unaffected: 6.1.169 , ≤ 6.1.* (semver) Unaffected: 6.6.130 , ≤ 6.6.* (semver) Unaffected: 6.12.77 , ≤ 6.12.* (semver) Unaffected: 6.18.18 , ≤ 6.18.* (semver) Unaffected: 6.19.8 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix) |
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CVE-2026-23269 (GCVE-0-2026-23269)
Vulnerability from cvelistv5 – Published: 2026-03-18 17:54 – Updated: 2026-05-11 22:03
VLAI
EPSS
Title
apparmor: validate DFA start states are in bounds in unpack_pdb
Summary
In the Linux kernel, the following vulnerability has been resolved:
apparmor: validate DFA start states are in bounds in unpack_pdb
Start states are read from untrusted data and used as indexes into the
DFA state tables. The aa_dfa_next() function call in unpack_pdb() will
access dfa->tables[YYTD_ID_BASE][start], and if the start state exceeds
the number of states in the DFA, this results in an out-of-bound read.
==================================================================
BUG: KASAN: slab-out-of-bounds in aa_dfa_next+0x2a1/0x360
Read of size 4 at addr ffff88811956fb90 by task su/1097
...
Reject policies with out-of-bounds start states during unpacking
to prevent the issue.
Severity
7.1 (High)
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/f43eea8ae0102ea19… | |
| https://git.kernel.org/stable/c/5487871b2b56c19d2… | |
| https://git.kernel.org/stable/c/5443c027ec16afa55… | |
| https://git.kernel.org/stable/c/07cf6320f40ea2ccf… | |
| https://git.kernel.org/stable/c/15c3eb8916e7db01c… | |
| https://git.kernel.org/stable/c/0baadb0eece2c4d93… | |
| https://git.kernel.org/stable/c/3bb7db43e32190c97… | |
| https://git.kernel.org/stable/c/9063d7e2615f4a7ab… | |
| https://www.qualys.com/2026/03/10/crack-armor.txt |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
ad5ff3db53c68c2f12936bc74ea5dfe0af943592 , < f43eea8ae0102ea198da211ef7f5ce83725ecf19
(git)
Affected: ad5ff3db53c68c2f12936bc74ea5dfe0af943592 , < 5487871b2b56c19d26936ed6fdc62652b30941df (git) Affected: ad5ff3db53c68c2f12936bc74ea5dfe0af943592 , < 5443c027ec16afa55b1b8a3e7a1ab2ea3c77767a (git) Affected: ad5ff3db53c68c2f12936bc74ea5dfe0af943592 , < 07cf6320f40ea2ccfad63728cff34ecb309d03da (git) Affected: ad5ff3db53c68c2f12936bc74ea5dfe0af943592 , < 15c3eb8916e7db01cb246d04a1fe6f0fdc065b0c (git) Affected: ad5ff3db53c68c2f12936bc74ea5dfe0af943592 , < 0baadb0eece2c4d939db10d3c323b4652ac79a58 (git) Affected: ad5ff3db53c68c2f12936bc74ea5dfe0af943592 , < 3bb7db43e32190c973d4019037cedb7895920184 (git) Affected: ad5ff3db53c68c2f12936bc74ea5dfe0af943592 , < 9063d7e2615f4a7ab321de6b520e23d370e58816 (git) |
|
| Linux | Linux |
Affected:
3.4
Unaffected: 0 , < 3.4 (semver) Unaffected: 5.10.253 , ≤ 5.10.* (semver) Unaffected: 5.15.203 , ≤ 5.15.* (semver) Unaffected: 6.1.169 , ≤ 6.1.* (semver) Unaffected: 6.6.130 , ≤ 6.6.* (semver) Unaffected: 6.12.77 , ≤ 6.12.* (semver) Unaffected: 6.18.18 , ≤ 6.18.* (semver) Unaffected: 6.19.8 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix) |
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"baseScore": 7.1,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
"version": "3.1"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-05-11T22:03:35.779Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/f43eea8ae0102ea198da211ef7f5ce83725ecf19"
},
{
"url": "https://git.kernel.org/stable/c/5487871b2b56c19d26936ed6fdc62652b30941df"
},
{
"url": "https://git.kernel.org/stable/c/5443c027ec16afa55b1b8a3e7a1ab2ea3c77767a"
},
{
"url": "https://git.kernel.org/stable/c/07cf6320f40ea2ccfad63728cff34ecb309d03da"
},
{
"url": "https://git.kernel.org/stable/c/15c3eb8916e7db01cb246d04a1fe6f0fdc065b0c"
},
{
"url": "https://git.kernel.org/stable/c/0baadb0eece2c4d939db10d3c323b4652ac79a58"
},
{
"url": "https://git.kernel.org/stable/c/3bb7db43e32190c973d4019037cedb7895920184"
},
{
"url": "https://git.kernel.org/stable/c/9063d7e2615f4a7ab321de6b520e23d370e58816"
},
{
"url": "https://www.qualys.com/2026/03/10/crack-armor.txt"
}
],
"title": "apparmor: validate DFA start states are in bounds in unpack_pdb",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-23269",
"datePublished": "2026-03-18T17:54:42.988Z",
"dateReserved": "2026-01-13T15:37:45.991Z",
"dateUpdated": "2026-05-11T22:03:35.779Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-23273 (GCVE-0-2026-23273)
Vulnerability from cvelistv5 – Published: 2026-03-20 08:08 – Updated: 2026-05-23 16:04
VLAI
EPSS
Title
macvlan: observe an RCU grace period in macvlan_common_newlink() error path
Summary
In the Linux kernel, the following vulnerability has been resolved:
macvlan: observe an RCU grace period in macvlan_common_newlink() error path
valis reported that a race condition still happens after my prior patch.
macvlan_common_newlink() might have made @dev visible before
detecting an error, and its caller will directly call free_netdev(dev).
We must respect an RCU period, either in macvlan or the core networking
stack.
After adding a temporary mdelay(1000) in macvlan_forward_source_one()
to open the race window, valis repro was:
ip link add p1 type veth peer p2
ip link set address 00:00:00:00:00:20 dev p1
ip link set up dev p1
ip link set up dev p2
ip link add mv0 link p2 type macvlan mode source
(ip link add invalid% link p2 type macvlan mode source macaddr add
00:00:00:00:00:20 &) ; sleep 0.5 ; ping -c1 -I p1 1.2.3.4
PING 1.2.3.4 (1.2.3.4): 56 data bytes
RTNETLINK answers: Invalid argument
BUG: KASAN: slab-use-after-free in macvlan_forward_source
(drivers/net/macvlan.c:408 drivers/net/macvlan.c:444)
Read of size 8 at addr ffff888016bb89c0 by task e/175
CPU: 1 UID: 1000 PID: 175 Comm: e Not tainted 6.19.0-rc8+ #33 NONE
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-2 04/01/2014
Call Trace:
<IRQ>
dump_stack_lvl (lib/dump_stack.c:123)
print_report (mm/kasan/report.c:379 mm/kasan/report.c:482)
? macvlan_forward_source (drivers/net/macvlan.c:408 drivers/net/macvlan.c:444)
kasan_report (mm/kasan/report.c:597)
? macvlan_forward_source (drivers/net/macvlan.c:408 drivers/net/macvlan.c:444)
macvlan_forward_source (drivers/net/macvlan.c:408 drivers/net/macvlan.c:444)
? tasklet_init (kernel/softirq.c:983)
macvlan_handle_frame (drivers/net/macvlan.c:501)
Allocated by task 169:
kasan_save_stack (mm/kasan/common.c:58)
kasan_save_track (./arch/x86/include/asm/current.h:25
mm/kasan/common.c:70 mm/kasan/common.c:79)
__kasan_kmalloc (mm/kasan/common.c:419)
__kvmalloc_node_noprof (./include/linux/kasan.h:263 mm/slub.c:5657
mm/slub.c:7140)
alloc_netdev_mqs (net/core/dev.c:12012)
rtnl_create_link (net/core/rtnetlink.c:3648)
rtnl_newlink (net/core/rtnetlink.c:3830 net/core/rtnetlink.c:3957
net/core/rtnetlink.c:4072)
rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
netlink_rcv_skb (net/netlink/af_netlink.c:2550)
netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
netlink_sendmsg (net/netlink/af_netlink.c:1894)
__sys_sendto (net/socket.c:727 net/socket.c:742 net/socket.c:2206)
__x64_sys_sendto (net/socket.c:2209)
do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:131)
Freed by task 169:
kasan_save_stack (mm/kasan/common.c:58)
kasan_save_track (./arch/x86/include/asm/current.h:25
mm/kasan/common.c:70 mm/kasan/common.c:79)
kasan_save_free_info (mm/kasan/generic.c:587)
__kasan_slab_free (mm/kasan/common.c:287)
kfree (mm/slub.c:6674 mm/slub.c:6882)
rtnl_newlink (net/core/rtnetlink.c:3845 net/core/rtnetlink.c:3957
net/core/rtnetlink.c:4072)
rtnetlink_rcv_msg (net/core/rtnetlink.c:6958)
netlink_rcv_skb (net/netlink/af_netlink.c:2550)
netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)
netlink_sendmsg (net/netlink/af_netlink.c:1894)
__sys_sendto (net/socket.c:727 net/socket.c:742 net/socket.c:2206)
__x64_sys_sendto (net/socket.c:2209)
do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)
entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:131)
Severity
7.8 (High)
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/91e4ff8d966978901… | |
| https://git.kernel.org/stable/c/3d94323c80d7fc4da… | |
| https://git.kernel.org/stable/c/721eb342d9ba19bad… | |
| https://git.kernel.org/stable/c/19c7d8ac51988d053… | |
| https://git.kernel.org/stable/c/a1f686d273d129b45… | |
| https://git.kernel.org/stable/c/d34f7a8aa9a25b7e6… | |
| https://git.kernel.org/stable/c/1e58ae87ad1e6e243… | |
| https://git.kernel.org/stable/c/e3f000f0dee1bfab5… |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
da5c6b8ae47e414be47e5e04def15b25d5c962dc , < 91e4ff8d966978901630fc29582c1a76d3c6e46c
(git)
Affected: 5dae6b36a7cb7a4fcf4121b95e9ca7f96f816c8a , < 3d94323c80d7fc4da5f10f9bb06a45d39d5d3cc4 (git) Affected: c43d0e787cbba569ec9d11579ed370b50fab6c9c , < 721eb342d9ba19bad5c4815ea3921465158b7362 (git) Affected: 11ba9f0dc865136174cb98834280fb21bbc950c7 , < 19c7d8ac51988d053709c1e85bd8482076af845d (git) Affected: 986967a162142710076782d5b93daab93a892980 , < a1f686d273d129b45712d95f4095843b864466bd (git) Affected: cdedcd5aa3f3cb8b7ae0f87ab3a936d0bd583d66 , < d34f7a8aa9a25b7e64e0e46e444697c0f702374d (git) Affected: f8db6475a83649689c087a8f52486fcc53e627e9 , < 1e58ae87ad1e6e24368dea9aec9048c758cd0e2b (git) Affected: f8db6475a83649689c087a8f52486fcc53e627e9 , < e3f000f0dee1bfab52e2e61ca6a3835d9e187e35 (git) Affected: 5.10.250 , < 5.10.252 (semver) Affected: 5.15.200 , < 5.15.202 (semver) Affected: 6.1.163 , < 6.1.165 (semver) Affected: 6.6.124 , < 6.6.128 (semver) Affected: 6.12.70 , < 6.12.75 (semver) Affected: 6.18.10 , < 6.18.14 (semver) |
|
| Linux | Linux |
Affected:
6.19
Unaffected: 0 , < 6.19 (semver) Unaffected: 5.10.252 , ≤ 5.10.* (semver) Unaffected: 5.15.202 , ≤ 5.15.* (semver) Unaffected: 6.1.165 , ≤ 6.1.* (semver) Unaffected: 6.6.128 , ≤ 6.6.* (semver) Unaffected: 6.12.75 , ≤ 6.12.* (semver) Unaffected: 6.18.14 , ≤ 6.18.* (semver) Unaffected: 6.19.4 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix) |
{
"containers": {
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{
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"programFiles": [
"drivers/net/macvlan.c"
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}
]
},
{
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"programFiles": [
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],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
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},
{
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"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
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},
{
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"status": "unaffected",
"version": "7.0",
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}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
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"vulnerable": true
},
{
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},
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},
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},
{
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},
{
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},
{
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},
{
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"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmacvlan: observe an RCU grace period in macvlan_common_newlink() error path\n\nvalis reported that a race condition still happens after my prior patch.\n\nmacvlan_common_newlink() might have made @dev visible before\ndetecting an error, and its caller will directly call free_netdev(dev).\n\nWe must respect an RCU period, either in macvlan or the core networking\nstack.\n\nAfter adding a temporary mdelay(1000) in macvlan_forward_source_one()\nto open the race window, valis repro was:\n\nip link add p1 type veth peer p2\nip link set address 00:00:00:00:00:20 dev p1\nip link set up dev p1\nip link set up dev p2\nip link add mv0 link p2 type macvlan mode source\n\n(ip link add invalid% link p2 type macvlan mode source macaddr add\n00:00:00:00:00:20 \u0026) ; sleep 0.5 ; ping -c1 -I p1 1.2.3.4\nPING 1.2.3.4 (1.2.3.4): 56 data bytes\nRTNETLINK answers: Invalid argument\n\nBUG: KASAN: slab-use-after-free in macvlan_forward_source\n(drivers/net/macvlan.c:408 drivers/net/macvlan.c:444)\nRead of size 8 at addr ffff888016bb89c0 by task e/175\n\nCPU: 1 UID: 1000 PID: 175 Comm: e Not tainted 6.19.0-rc8+ #33 NONE\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-2 04/01/2014\nCall Trace:\n\u003cIRQ\u003e\ndump_stack_lvl (lib/dump_stack.c:123)\nprint_report (mm/kasan/report.c:379 mm/kasan/report.c:482)\n? macvlan_forward_source (drivers/net/macvlan.c:408 drivers/net/macvlan.c:444)\nkasan_report (mm/kasan/report.c:597)\n? macvlan_forward_source (drivers/net/macvlan.c:408 drivers/net/macvlan.c:444)\nmacvlan_forward_source (drivers/net/macvlan.c:408 drivers/net/macvlan.c:444)\n? tasklet_init (kernel/softirq.c:983)\nmacvlan_handle_frame (drivers/net/macvlan.c:501)\n\nAllocated by task 169:\nkasan_save_stack (mm/kasan/common.c:58)\nkasan_save_track (./arch/x86/include/asm/current.h:25\nmm/kasan/common.c:70 mm/kasan/common.c:79)\n__kasan_kmalloc (mm/kasan/common.c:419)\n__kvmalloc_node_noprof (./include/linux/kasan.h:263 mm/slub.c:5657\nmm/slub.c:7140)\nalloc_netdev_mqs (net/core/dev.c:12012)\nrtnl_create_link (net/core/rtnetlink.c:3648)\nrtnl_newlink (net/core/rtnetlink.c:3830 net/core/rtnetlink.c:3957\nnet/core/rtnetlink.c:4072)\nrtnetlink_rcv_msg (net/core/rtnetlink.c:6958)\nnetlink_rcv_skb (net/netlink/af_netlink.c:2550)\nnetlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)\nnetlink_sendmsg (net/netlink/af_netlink.c:1894)\n__sys_sendto (net/socket.c:727 net/socket.c:742 net/socket.c:2206)\n__x64_sys_sendto (net/socket.c:2209)\ndo_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)\nentry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:131)\n\nFreed by task 169:\nkasan_save_stack (mm/kasan/common.c:58)\nkasan_save_track (./arch/x86/include/asm/current.h:25\nmm/kasan/common.c:70 mm/kasan/common.c:79)\nkasan_save_free_info (mm/kasan/generic.c:587)\n__kasan_slab_free (mm/kasan/common.c:287)\nkfree (mm/slub.c:6674 mm/slub.c:6882)\nrtnl_newlink (net/core/rtnetlink.c:3845 net/core/rtnetlink.c:3957\nnet/core/rtnetlink.c:4072)\nrtnetlink_rcv_msg (net/core/rtnetlink.c:6958)\nnetlink_rcv_skb (net/netlink/af_netlink.c:2550)\nnetlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1344)\nnetlink_sendmsg (net/netlink/af_netlink.c:1894)\n__sys_sendto (net/socket.c:727 net/socket.c:742 net/socket.c:2206)\n__x64_sys_sendto (net/socket.c:2209)\ndo_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94)\nentry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:131)"
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 7.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-05-23T16:04:27.068Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/91e4ff8d966978901630fc29582c1a76d3c6e46c"
},
{
"url": "https://git.kernel.org/stable/c/3d94323c80d7fc4da5f10f9bb06a45d39d5d3cc4"
},
{
"url": "https://git.kernel.org/stable/c/721eb342d9ba19bad5c4815ea3921465158b7362"
},
{
"url": "https://git.kernel.org/stable/c/19c7d8ac51988d053709c1e85bd8482076af845d"
},
{
"url": "https://git.kernel.org/stable/c/a1f686d273d129b45712d95f4095843b864466bd"
},
{
"url": "https://git.kernel.org/stable/c/d34f7a8aa9a25b7e64e0e46e444697c0f702374d"
},
{
"url": "https://git.kernel.org/stable/c/1e58ae87ad1e6e24368dea9aec9048c758cd0e2b"
},
{
"url": "https://git.kernel.org/stable/c/e3f000f0dee1bfab52e2e61ca6a3835d9e187e35"
}
],
"title": "macvlan: observe an RCU grace period in macvlan_common_newlink() error path",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-23273",
"datePublished": "2026-03-20T08:08:54.111Z",
"dateReserved": "2026-01-13T15:37:45.991Z",
"dateUpdated": "2026-05-23T16:04:27.068Z",
"state": "PUBLISHED"
},
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CVE-2026-23276 (GCVE-0-2026-23276)
Vulnerability from cvelistv5 – Published: 2026-03-20 08:08 – Updated: 2026-05-23 16:04
VLAI
EPSS
Title
net: add xmit recursion limit to tunnel xmit functions
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: add xmit recursion limit to tunnel xmit functions
Tunnel xmit functions (iptunnel_xmit, ip6tunnel_xmit) lack their own
recursion limit. When a bond device in broadcast mode has GRE tap
interfaces as slaves, and those GRE tunnels route back through the
bond, multicast/broadcast traffic triggers infinite recursion between
bond_xmit_broadcast() and ip_tunnel_xmit()/ip6_tnl_xmit(), causing
kernel stack overflow.
The existing XMIT_RECURSION_LIMIT (8) in the no-qdisc path is not
sufficient because tunnel recursion involves route lookups and full IP
output, consuming much more stack per level. Use a lower limit of 4
(IP_TUNNEL_RECURSION_LIMIT) to prevent overflow.
Add recursion detection using dev_xmit_recursion helpers directly in
iptunnel_xmit() and ip6tunnel_xmit() to cover all IPv4/IPv6 tunnel
paths including UDP encapsulated tunnels (VXLAN, Geneve, etc.).
Move dev_xmit_recursion helpers from net/core/dev.h to public header
include/linux/netdevice.h so they can be used by tunnel code.
BUG: KASAN: stack-out-of-bounds in blake2s.constprop.0+0xe7/0x160
Write of size 32 at addr ffff88810033fed0 by task kworker/0:1/11
Workqueue: mld mld_ifc_work
Call Trace:
<TASK>
__build_flow_key.constprop.0 (net/ipv4/route.c:515)
ip_rt_update_pmtu (net/ipv4/route.c:1073)
iptunnel_xmit (net/ipv4/ip_tunnel_core.c:84)
ip_tunnel_xmit (net/ipv4/ip_tunnel.c:847)
gre_tap_xmit (net/ipv4/ip_gre.c:779)
dev_hard_start_xmit (net/core/dev.c:3887)
sch_direct_xmit (net/sched/sch_generic.c:347)
__dev_queue_xmit (net/core/dev.c:4802)
bond_dev_queue_xmit (drivers/net/bonding/bond_main.c:312)
bond_xmit_broadcast (drivers/net/bonding/bond_main.c:5279)
bond_start_xmit (drivers/net/bonding/bond_main.c:5530)
dev_hard_start_xmit (net/core/dev.c:3887)
__dev_queue_xmit (net/core/dev.c:4841)
ip_finish_output2 (net/ipv4/ip_output.c:237)
ip_output (net/ipv4/ip_output.c:438)
iptunnel_xmit (net/ipv4/ip_tunnel_core.c:86)
gre_tap_xmit (net/ipv4/ip_gre.c:779)
dev_hard_start_xmit (net/core/dev.c:3887)
sch_direct_xmit (net/sched/sch_generic.c:347)
__dev_queue_xmit (net/core/dev.c:4802)
bond_dev_queue_xmit (drivers/net/bonding/bond_main.c:312)
bond_xmit_broadcast (drivers/net/bonding/bond_main.c:5279)
bond_start_xmit (drivers/net/bonding/bond_main.c:5530)
dev_hard_start_xmit (net/core/dev.c:3887)
__dev_queue_xmit (net/core/dev.c:4841)
ip_finish_output2 (net/ipv4/ip_output.c:237)
ip_output (net/ipv4/ip_output.c:438)
iptunnel_xmit (net/ipv4/ip_tunnel_core.c:86)
ip_tunnel_xmit (net/ipv4/ip_tunnel.c:847)
gre_tap_xmit (net/ipv4/ip_gre.c:779)
dev_hard_start_xmit (net/core/dev.c:3887)
sch_direct_xmit (net/sched/sch_generic.c:347)
__dev_queue_xmit (net/core/dev.c:4802)
bond_dev_queue_xmit (drivers/net/bonding/bond_main.c:312)
bond_xmit_broadcast (drivers/net/bonding/bond_main.c:5279)
bond_start_xmit (drivers/net/bonding/bond_main.c:5530)
dev_hard_start_xmit (net/core/dev.c:3887)
__dev_queue_xmit (net/core/dev.c:4841)
mld_sendpack
mld_ifc_work
process_one_work
worker_thread
</TASK>
Severity
No CVSS data available.
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
745e20f1b626b1be4b100af5d4bf7b3439392f8f , < 834c4f645726a25fd71ea50cdfb5c135f8f95d85
(git)
Affected: 745e20f1b626b1be4b100af5d4bf7b3439392f8f , < 8a57deeb256069f262957d8012418559ff66c385 (git) Affected: 745e20f1b626b1be4b100af5d4bf7b3439392f8f , < b56b8d19bd05e2a8338385c770bc2b60590bc81e (git) Affected: 745e20f1b626b1be4b100af5d4bf7b3439392f8f , < 6f1a9140ecda3baba3d945b9a6155af4268aafc4 (git) Affected: 3f266b04185de51d8e6446eb1fccec3b5e7ce575 (git) Affected: 2.6.35.9 , < 2.6.36 (semver) |
|
| Linux | Linux |
Affected:
2.6.37
Unaffected: 0 , < 2.6.37 (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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"versionType": "semver"
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{
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"version": "6.18.19",
"versionType": "semver"
},
{
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"status": "unaffected",
"version": "6.19.9",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
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}
],
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"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: add xmit recursion limit to tunnel xmit functions\n\nTunnel xmit functions (iptunnel_xmit, ip6tunnel_xmit) lack their own\nrecursion limit. When a bond device in broadcast mode has GRE tap\ninterfaces as slaves, and those GRE tunnels route back through the\nbond, multicast/broadcast traffic triggers infinite recursion between\nbond_xmit_broadcast() and ip_tunnel_xmit()/ip6_tnl_xmit(), causing\nkernel stack overflow.\n\nThe existing XMIT_RECURSION_LIMIT (8) in the no-qdisc path is not\nsufficient because tunnel recursion involves route lookups and full IP\noutput, consuming much more stack per level. Use a lower limit of 4\n(IP_TUNNEL_RECURSION_LIMIT) to prevent overflow.\n\nAdd recursion detection using dev_xmit_recursion helpers directly in\niptunnel_xmit() and ip6tunnel_xmit() to cover all IPv4/IPv6 tunnel\npaths including UDP encapsulated tunnels (VXLAN, Geneve, etc.).\n\nMove dev_xmit_recursion helpers from net/core/dev.h to public header\ninclude/linux/netdevice.h so they can be used by tunnel code.\n\n BUG: KASAN: stack-out-of-bounds in blake2s.constprop.0+0xe7/0x160\n Write of size 32 at addr ffff88810033fed0 by task kworker/0:1/11\n Workqueue: mld mld_ifc_work\n Call Trace:\n \u003cTASK\u003e\n __build_flow_key.constprop.0 (net/ipv4/route.c:515)\n ip_rt_update_pmtu (net/ipv4/route.c:1073)\n iptunnel_xmit (net/ipv4/ip_tunnel_core.c:84)\n ip_tunnel_xmit (net/ipv4/ip_tunnel.c:847)\n gre_tap_xmit (net/ipv4/ip_gre.c:779)\n dev_hard_start_xmit (net/core/dev.c:3887)\n sch_direct_xmit (net/sched/sch_generic.c:347)\n __dev_queue_xmit (net/core/dev.c:4802)\n bond_dev_queue_xmit (drivers/net/bonding/bond_main.c:312)\n bond_xmit_broadcast (drivers/net/bonding/bond_main.c:5279)\n bond_start_xmit (drivers/net/bonding/bond_main.c:5530)\n dev_hard_start_xmit (net/core/dev.c:3887)\n __dev_queue_xmit (net/core/dev.c:4841)\n ip_finish_output2 (net/ipv4/ip_output.c:237)\n ip_output (net/ipv4/ip_output.c:438)\n iptunnel_xmit (net/ipv4/ip_tunnel_core.c:86)\n gre_tap_xmit (net/ipv4/ip_gre.c:779)\n dev_hard_start_xmit (net/core/dev.c:3887)\n sch_direct_xmit (net/sched/sch_generic.c:347)\n __dev_queue_xmit (net/core/dev.c:4802)\n bond_dev_queue_xmit (drivers/net/bonding/bond_main.c:312)\n bond_xmit_broadcast (drivers/net/bonding/bond_main.c:5279)\n bond_start_xmit (drivers/net/bonding/bond_main.c:5530)\n dev_hard_start_xmit (net/core/dev.c:3887)\n __dev_queue_xmit (net/core/dev.c:4841)\n ip_finish_output2 (net/ipv4/ip_output.c:237)\n ip_output (net/ipv4/ip_output.c:438)\n iptunnel_xmit (net/ipv4/ip_tunnel_core.c:86)\n ip_tunnel_xmit (net/ipv4/ip_tunnel.c:847)\n gre_tap_xmit (net/ipv4/ip_gre.c:779)\n dev_hard_start_xmit (net/core/dev.c:3887)\n sch_direct_xmit (net/sched/sch_generic.c:347)\n __dev_queue_xmit (net/core/dev.c:4802)\n bond_dev_queue_xmit (drivers/net/bonding/bond_main.c:312)\n bond_xmit_broadcast (drivers/net/bonding/bond_main.c:5279)\n bond_start_xmit (drivers/net/bonding/bond_main.c:5530)\n dev_hard_start_xmit (net/core/dev.c:3887)\n __dev_queue_xmit (net/core/dev.c:4841)\n mld_sendpack\n mld_ifc_work\n process_one_work\n worker_thread\n \u003c/TASK\u003e"
}
],
"providerMetadata": {
"dateUpdated": "2026-05-23T16:04:28.110Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
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"url": "https://git.kernel.org/stable/c/834c4f645726a25fd71ea50cdfb5c135f8f95d85"
},
{
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{
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}
],
"title": "net: add xmit recursion limit to tunnel xmit functions",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
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"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-23276",
"datePublished": "2026-03-20T08:08:56.575Z",
"dateReserved": "2026-01-13T15:37:45.991Z",
"dateUpdated": "2026-05-23T16:04:28.110Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-23290 (GCVE-0-2026-23290)
Vulnerability from cvelistv5 – Published: 2026-03-25 10:26 – Updated: 2026-05-11 22:04
VLAI
EPSS
Title
net: usb: pegasus: validate USB endpoints
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: usb: pegasus: validate USB endpoints
The pegasus driver should validate that the device it is probing has the
proper number and types of USB endpoints it is expecting before it binds
to it. If a malicious device were to not have the same urbs the driver
will crash later on when it blindly accesses these endpoints.
Severity
No CVSS data available.
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/d5d9086211877361f… | |
| https://git.kernel.org/stable/c/af7369ae572f53cb7… | |
| https://git.kernel.org/stable/c/43d7c4114b1ec14f4… | |
| https://git.kernel.org/stable/c/7f8505c7ce3f186ef… | |
| https://git.kernel.org/stable/c/95556b4e879711693… | |
| https://git.kernel.org/stable/c/c3f1672eaea68c5cb… | |
| https://git.kernel.org/stable/c/ee31ec8cf1eafeefa… | |
| https://git.kernel.org/stable/c/11de1d3ae5565ed22… |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < d5d9086211877361f1bda44a0aec538ddb04042a
(git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < af7369ae572f53cb701731a4289ec3b3889bc501 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 43d7c4114b1ec14f41f09306525d3b9382286fc1 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 7f8505c7ce3f186ef9d2495f3c0bd6ad6fce999f (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 95556b4e879711693c9865ba0938c148f62d5ea4 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < c3f1672eaea68c5cb6e1ec081cdb92045453218f (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < ee31ec8cf1eafeefa85ef934ba688d27f88bf0e2 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 11de1d3ae5565ed22ef1f89d73d8f2d00322c699 (git) |
|
| Linux | Linux |
Affected:
2.6.12
Unaffected: 0 , < 2.6.12 (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: 6.12.77 , ≤ 6.12.* (semver) Unaffected: 6.18.17 , ≤ 6.18.* (semver) Unaffected: 6.19.7 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix) |
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CVE-2026-23292 (GCVE-0-2026-23292)
Vulnerability from cvelistv5 – Published: 2026-03-25 10:26 – Updated: 2026-05-23 16:04
VLAI
EPSS
Title
scsi: target: Fix recursive locking in __configfs_open_file()
Summary
In the Linux kernel, the following vulnerability has been resolved:
scsi: target: Fix recursive locking in __configfs_open_file()
In flush_write_buffer, &p->frag_sem is acquired and then the loaded store
function is called, which, here, is target_core_item_dbroot_store(). This
function called filp_open(), following which these functions were called
(in reverse order), according to the call trace:
down_read
__configfs_open_file
do_dentry_open
vfs_open
do_open
path_openat
do_filp_open
file_open_name
filp_open
target_core_item_dbroot_store
flush_write_buffer
configfs_write_iter
target_core_item_dbroot_store() tries to validate the new file path by
trying to open the file path provided to it; however, in this case, the bug
report shows:
db_root: not a directory: /sys/kernel/config/target/dbroot
indicating that the same configfs file was tried to be opened, on which it
is currently working on. Thus, it is trying to acquire frag_sem semaphore
of the same file of which it already holds the semaphore obtained in
flush_write_buffer(), leading to acquiring the semaphore in a nested manner
and a possibility of recursive locking.
Fix this by modifying target_core_item_dbroot_store() to use kern_path()
instead of filp_open() to avoid opening the file using filesystem-specific
function __configfs_open_file(), and further modifying it to make this fix
compatible.
Severity
No CVSS data available.
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/3161ef61f121d4573… | |
| https://git.kernel.org/stable/c/e8ef82cb6443d5f32… | |
| https://git.kernel.org/stable/c/4fcfa424a581d823c… | |
| https://git.kernel.org/stable/c/9a5641024fbfd9b24… | |
| https://git.kernel.org/stable/c/142eacb50fb903a4c… | |
| https://git.kernel.org/stable/c/14d4ac19d18953975… |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
b0841eefd9693827afb9888235e26ddd098f9cef , < 3161ef61f121d4573cad5b57c92188dcd9b284b3
(git)
Affected: b0841eefd9693827afb9888235e26ddd098f9cef , < e8ef82cb6443d5f3260b1b830e17f03dda4229ea (git) Affected: b0841eefd9693827afb9888235e26ddd098f9cef , < 4fcfa424a581d823cb1a9676e3eefe6ca17e453a (git) Affected: b0841eefd9693827afb9888235e26ddd098f9cef , < 9a5641024fbfd9b24fe65984ad85fea10a3ae438 (git) Affected: b0841eefd9693827afb9888235e26ddd098f9cef , < 142eacb50fb903a4c10dee7e67b6e79ebb36a582 (git) Affected: b0841eefd9693827afb9888235e26ddd098f9cef , < 14d4ac19d1895397532eec407433c5d74d9da53b (git) Affected: 49824b5c875087a52672b0c8e8ecbefe6f773532 (git) Affected: 09e21253d17f53bdb5aac0e0dbd057a29fcbe8d1 (git) Affected: 0dfc45be875a378c2a3a4d6ed8e668ec8eb75073 (git) Affected: 4.9.201 , < 4.10 (semver) Affected: 4.14.154 , < 4.15 (semver) Affected: 4.19.84 , < 4.20 (semver) |
|
| Linux | Linux |
Affected:
5.3
Unaffected: 0 , < 5.3 (semver) Unaffected: 6.1.167 , ≤ 6.1.* (semver) Unaffected: 6.6.130 , ≤ 6.6.* (semver) Unaffected: 6.12.77 , ≤ 6.12.* (semver) Unaffected: 6.18.17 , ≤ 6.18.* (semver) Unaffected: 6.19.7 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix) |
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CVE-2026-23293 (GCVE-0-2026-23293)
Vulnerability from cvelistv5 – Published: 2026-03-25 10:26 – Updated: 2026-05-11 22:04
VLAI
EPSS
Title
net: vxlan: fix nd_tbl NULL dereference when IPv6 is disabled
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: vxlan: fix nd_tbl NULL dereference when IPv6 is disabled
When booting with the 'ipv6.disable=1' parameter, the nd_tbl is never
initialized because inet6_init() exits before ndisc_init() is called
which initializes it. If an IPv6 packet is injected into the interface,
route_shortcircuit() is called and a NULL pointer dereference happens on
neigh_lookup().
BUG: kernel NULL pointer dereference, address: 0000000000000380
Oops: Oops: 0000 [#1] SMP NOPTI
[...]
RIP: 0010:neigh_lookup+0x20/0x270
[...]
Call Trace:
<TASK>
vxlan_xmit+0x638/0x1ef0 [vxlan]
dev_hard_start_xmit+0x9e/0x2e0
__dev_queue_xmit+0xbee/0x14e0
packet_sendmsg+0x116f/0x1930
__sys_sendto+0x1f5/0x200
__x64_sys_sendto+0x24/0x30
do_syscall_64+0x12f/0x1590
entry_SYSCALL_64_after_hwframe+0x76/0x7e
Fix this by adding an early check on route_shortcircuit() when protocol
is ETH_P_IPV6. Note that ipv6_mod_enabled() cannot be used here because
VXLAN can be built-in even when IPv6 is built as a module.
Severity
No CVSS data available.
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/649e2bb74da54c96c… | |
| https://git.kernel.org/stable/c/dc3e62cf3bbf66280… | |
| https://git.kernel.org/stable/c/b5190fcd75a1f1785… | |
| https://git.kernel.org/stable/c/5f93e6b4d12bd3a45… | |
| https://git.kernel.org/stable/c/f0373e9317bc904e7… | |
| https://git.kernel.org/stable/c/fbbd2118982c55fb9… | |
| https://git.kernel.org/stable/c/abcd48ecdeb2e12ec… | |
| https://git.kernel.org/stable/c/168ff39e4758897d2… |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
e15a00aafa4b7953ad717d3cb1ad7acf4ff76945 , < 649e2bb74da54c96cf20729001e283626a2fefa0
(git)
Affected: e15a00aafa4b7953ad717d3cb1ad7acf4ff76945 , < dc3e62cf3bbf66280a907ec379f373d0c3b8b2bc (git) Affected: e15a00aafa4b7953ad717d3cb1ad7acf4ff76945 , < b5190fcd75a1f1785c766a8d1e44d3938e168f45 (git) Affected: e15a00aafa4b7953ad717d3cb1ad7acf4ff76945 , < 5f93e6b4d12bd3a4517a6d447ea675f448f21434 (git) Affected: e15a00aafa4b7953ad717d3cb1ad7acf4ff76945 , < f0373e9317bc904e7bdb123d3106fe4f3cea2fb7 (git) Affected: e15a00aafa4b7953ad717d3cb1ad7acf4ff76945 , < fbbd2118982c55fb9b0a753ae0cf7194e77149fb (git) Affected: e15a00aafa4b7953ad717d3cb1ad7acf4ff76945 , < abcd48ecdeb2e12eccb8339a35534c757782afcd (git) Affected: e15a00aafa4b7953ad717d3cb1ad7acf4ff76945 , < 168ff39e4758897d2eee4756977d036d52884c7e (git) |
|
| Linux | Linux |
Affected:
3.12
Unaffected: 0 , < 3.12 (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: 6.12.77 , ≤ 6.12.* (semver) Unaffected: 6.18.17 , ≤ 6.18.* (semver) Unaffected: 6.19.7 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix) |
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CVE-2026-23312 (GCVE-0-2026-23312)
Vulnerability from cvelistv5 – Published: 2026-03-25 10:27 – Updated: 2026-05-11 22:04
VLAI
EPSS
Title
net: usb: kaweth: validate USB endpoints
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: usb: kaweth: validate USB endpoints
The kaweth driver should validate that the device it is probing has the
proper number and types of USB endpoints it is expecting before it binds
to it. If a malicious device were to not have the same urbs the driver
will crash later on when it blindly accesses these endpoints.
Severity
No CVSS data available.
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/3b5075e4ce97d1a1c… | |
| https://git.kernel.org/stable/c/6c986abd2a5033633… | |
| https://git.kernel.org/stable/c/7c7ebf5e45d2504d9… | |
| https://git.kernel.org/stable/c/72f90f481c6a05968… | |
| https://git.kernel.org/stable/c/f33e80d195a003b38… | |
| https://git.kernel.org/stable/c/2795fc06e7652c0ba… | |
| https://git.kernel.org/stable/c/0aae18e4638a7c1c5… | |
| https://git.kernel.org/stable/c/4b063c002ca759d1b… |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 3b5075e4ce97d1a1ce82ff3fb6308761987a48bb
(git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 6c986abd2a5033633c6e6f9dd135cf96b19c7fdf (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 7c7ebf5e45d2504d92ea294ac3828d58586491df (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 72f90f481c6a059680b9b976695d4cfb04fba1f3 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < f33e80d195a003b384620ee240f69092b519146b (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 2795fc06e7652c0ba299d936c584d5e08b6b57a1 (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 0aae18e4638a7c1c579df92bc6edc36cedfaaa8c (git) Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 4b063c002ca759d1b299988ee23f564c9609c875 (git) |
|
| Linux | Linux |
Affected:
2.6.12
Unaffected: 0 , < 2.6.12 (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: 6.12.77 , ≤ 6.12.* (semver) Unaffected: 6.18.17 , ≤ 6.18.* (semver) Unaffected: 6.19.7 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix) |
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CVE-2026-23340 (GCVE-0-2026-23340)
Vulnerability from cvelistv5 – Published: 2026-03-25 10:27 – Updated: 2026-05-11 22:04
VLAI
EPSS
Title
net: sched: avoid qdisc_reset_all_tx_gt() vs dequeue race for lockless qdiscs
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: sched: avoid qdisc_reset_all_tx_gt() vs dequeue race for lockless qdiscs
When shrinking the number of real tx queues,
netif_set_real_num_tx_queues() calls qdisc_reset_all_tx_gt() to flush
qdiscs for queues which will no longer be used.
qdisc_reset_all_tx_gt() currently serializes qdisc_reset() with
qdisc_lock(). However, for lockless qdiscs, the dequeue path is
serialized by qdisc_run_begin/end() using qdisc->seqlock instead, so
qdisc_reset() can run concurrently with __qdisc_run() and free skbs
while they are still being dequeued, leading to UAF.
This can easily be reproduced on e.g. virtio-net by imposing heavy
traffic while frequently changing the number of queue pairs:
iperf3 -ub0 -c $peer -t 0 &
while :; do
ethtool -L eth0 combined 1
ethtool -L eth0 combined 2
done
With KASAN enabled, this leads to reports like:
BUG: KASAN: slab-use-after-free in __qdisc_run+0x133f/0x1760
...
Call Trace:
<TASK>
...
__qdisc_run+0x133f/0x1760
__dev_queue_xmit+0x248f/0x3550
ip_finish_output2+0xa42/0x2110
ip_output+0x1a7/0x410
ip_send_skb+0x2e6/0x480
udp_send_skb+0xb0a/0x1590
udp_sendmsg+0x13c9/0x1fc0
...
</TASK>
Allocated by task 1270 on cpu 5 at 44.558414s:
...
alloc_skb_with_frags+0x84/0x7c0
sock_alloc_send_pskb+0x69a/0x830
__ip_append_data+0x1b86/0x48c0
ip_make_skb+0x1e8/0x2b0
udp_sendmsg+0x13a6/0x1fc0
...
Freed by task 1306 on cpu 3 at 44.558445s:
...
kmem_cache_free+0x117/0x5e0
pfifo_fast_reset+0x14d/0x580
qdisc_reset+0x9e/0x5f0
netif_set_real_num_tx_queues+0x303/0x840
virtnet_set_channels+0x1bf/0x260 [virtio_net]
ethnl_set_channels+0x684/0xae0
ethnl_default_set_doit+0x31a/0x890
...
Serialize qdisc_reset_all_tx_gt() against the lockless dequeue path by
taking qdisc->seqlock for TCQ_F_NOLOCK qdiscs, matching the
serialization model already used by dev_reset_queue().
Additionally clear QDISC_STATE_NON_EMPTY after reset so the qdisc state
reflects an empty queue, avoiding needless re-scheduling.
Severity
7.8 (High)
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/5bb27ad54d12de67e… | |
| https://git.kernel.org/stable/c/7594467c49bfc2f46… | |
| https://git.kernel.org/stable/c/dbd58b0730aa06ab6… | |
| https://git.kernel.org/stable/c/5bc4e69306ed7ae02… | |
| https://git.kernel.org/stable/c/8314944cc3bdeaa5a… | |
| https://git.kernel.org/stable/c/c69df4e0524f8de8e… | |
| https://git.kernel.org/stable/c/7f083faf59d14c04e… |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
6b3ba9146fe64b9bebb6346c9dcfe3b4851de2d7 , < 5bb27ad54d12de67e457d7d251198e361bef835e
(git)
Affected: 6b3ba9146fe64b9bebb6346c9dcfe3b4851de2d7 , < 7594467c49bfc2f4644dee0415ac2290db11fa0d (git) Affected: 6b3ba9146fe64b9bebb6346c9dcfe3b4851de2d7 , < dbd58b0730aa06ab6ad26079cf9a5b6b58e7e750 (git) Affected: 6b3ba9146fe64b9bebb6346c9dcfe3b4851de2d7 , < 5bc4e69306ed7ae02232eb4c0b23ed621a26d504 (git) Affected: 6b3ba9146fe64b9bebb6346c9dcfe3b4851de2d7 , < 8314944cc3bdeaa5a73e6f8a8cf0d94822e625cb (git) Affected: 6b3ba9146fe64b9bebb6346c9dcfe3b4851de2d7 , < c69df4e0524f8de8e176ba389acd83e85f5f49d0 (git) Affected: 6b3ba9146fe64b9bebb6346c9dcfe3b4851de2d7 , < 7f083faf59d14c04e01ec05a7507f036c965acf8 (git) |
|
| Linux | Linux |
Affected:
4.16
Unaffected: 0 , < 4.16 (semver) Unaffected: 5.15.203 , ≤ 5.15.* (semver) Unaffected: 6.1.167 , ≤ 6.1.* (semver) Unaffected: 6.6.130 , ≤ 6.6.* (semver) Unaffected: 6.12.77 , ≤ 6.12.* (semver) Unaffected: 6.18.17 , ≤ 6.18.* (semver) Unaffected: 6.19.7 , ≤ 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: sched: avoid qdisc_reset_all_tx_gt() vs dequeue race for lockless qdiscs\n\nWhen shrinking the number of real tx queues,\nnetif_set_real_num_tx_queues() calls qdisc_reset_all_tx_gt() to flush\nqdiscs for queues which will no longer be used.\n\nqdisc_reset_all_tx_gt() currently serializes qdisc_reset() with\nqdisc_lock(). However, for lockless qdiscs, the dequeue path is\nserialized by qdisc_run_begin/end() using qdisc-\u003eseqlock instead, so\nqdisc_reset() can run concurrently with __qdisc_run() and free skbs\nwhile they are still being dequeued, leading to UAF.\n\nThis can easily be reproduced on e.g. virtio-net by imposing heavy\ntraffic while frequently changing the number of queue pairs:\n\n iperf3 -ub0 -c $peer -t 0 \u0026\n while :; do\n ethtool -L eth0 combined 1\n ethtool -L eth0 combined 2\n done\n\nWith KASAN enabled, this leads to reports like:\n\n BUG: KASAN: slab-use-after-free in __qdisc_run+0x133f/0x1760\n ...\n Call Trace:\n \u003cTASK\u003e\n ...\n __qdisc_run+0x133f/0x1760\n __dev_queue_xmit+0x248f/0x3550\n ip_finish_output2+0xa42/0x2110\n ip_output+0x1a7/0x410\n ip_send_skb+0x2e6/0x480\n udp_send_skb+0xb0a/0x1590\n udp_sendmsg+0x13c9/0x1fc0\n ...\n \u003c/TASK\u003e\n\n Allocated by task 1270 on cpu 5 at 44.558414s:\n ...\n alloc_skb_with_frags+0x84/0x7c0\n sock_alloc_send_pskb+0x69a/0x830\n __ip_append_data+0x1b86/0x48c0\n ip_make_skb+0x1e8/0x2b0\n udp_sendmsg+0x13a6/0x1fc0\n ...\n\n Freed by task 1306 on cpu 3 at 44.558445s:\n ...\n kmem_cache_free+0x117/0x5e0\n pfifo_fast_reset+0x14d/0x580\n qdisc_reset+0x9e/0x5f0\n netif_set_real_num_tx_queues+0x303/0x840\n virtnet_set_channels+0x1bf/0x260 [virtio_net]\n ethnl_set_channels+0x684/0xae0\n ethnl_default_set_doit+0x31a/0x890\n ...\n\nSerialize qdisc_reset_all_tx_gt() against the lockless dequeue path by\ntaking qdisc-\u003eseqlock for TCQ_F_NOLOCK qdiscs, matching the\nserialization model already used by dev_reset_queue().\n\nAdditionally clear QDISC_STATE_NON_EMPTY after reset so the qdisc state\nreflects an empty queue, avoiding needless re-scheduling."
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{
"url": "https://git.kernel.org/stable/c/7f083faf59d14c04e01ec05a7507f036c965acf8"
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"title": "net: sched: avoid qdisc_reset_all_tx_gt() vs dequeue race for lockless qdiscs",
"x_generator": {
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"assignerShortName": "Linux",
"cveId": "CVE-2026-23340",
"datePublished": "2026-03-25T10:27:28.728Z",
"dateReserved": "2026-01-13T15:37:45.998Z",
"dateUpdated": "2026-05-11T22:04:56.907Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-23378 (GCVE-0-2026-23378)
Vulnerability from cvelistv5 – Published: 2026-03-25 10:27 – Updated: 2026-05-11 22:05
VLAI
EPSS
Title
net/sched: act_ife: Fix metalist update behavior
Summary
In the Linux kernel, the following vulnerability has been resolved:
net/sched: act_ife: Fix metalist update behavior
Whenever an ife action replace changes the metalist, instead of
replacing the old data on the metalist, the current ife code is appending
the new metadata. Aside from being innapropriate behavior, this may lead
to an unbounded addition of metadata to the metalist which might cause an
out of bounds error when running the encode op:
[ 138.423369][ C1] ==================================================================
[ 138.424317][ C1] BUG: KASAN: slab-out-of-bounds in ife_tlv_meta_encode (net/ife/ife.c:168)
[ 138.424906][ C1] Write of size 4 at addr ffff8880077f4ffe by task ife_out_out_bou/255
[ 138.425778][ C1] CPU: 1 UID: 0 PID: 255 Comm: ife_out_out_bou Not tainted 7.0.0-rc1-00169-gfbdfa8da05b6 #624 PREEMPT(full)
[ 138.425795][ C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 138.425800][ C1] Call Trace:
[ 138.425804][ C1] <IRQ>
[ 138.425808][ C1] dump_stack_lvl (lib/dump_stack.c:122)
[ 138.425828][ C1] print_report (mm/kasan/report.c:379 mm/kasan/report.c:482)
[ 138.425839][ C1] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)
[ 138.425844][ C1] ? __virt_addr_valid (./arch/x86/include/asm/preempt.h:95 (discriminator 1) ./include/linux/rcupdate.h:975 (discriminator 1) ./include/linux/mmzone.h:2207 (discriminator 1) arch/x86/mm/physaddr.c:54 (discriminator 1))
[ 138.425853][ C1] ? ife_tlv_meta_encode (net/ife/ife.c:168)
[ 138.425859][ C1] kasan_report (mm/kasan/report.c:221 mm/kasan/report.c:597)
[ 138.425868][ C1] ? ife_tlv_meta_encode (net/ife/ife.c:168)
[ 138.425878][ C1] kasan_check_range (mm/kasan/generic.c:186 (discriminator 1) mm/kasan/generic.c:200 (discriminator 1))
[ 138.425884][ C1] __asan_memset (mm/kasan/shadow.c:84 (discriminator 2))
[ 138.425889][ C1] ife_tlv_meta_encode (net/ife/ife.c:168)
[ 138.425893][ C1] ? ife_tlv_meta_encode (net/ife/ife.c:171)
[ 138.425898][ C1] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)
[ 138.425903][ C1] ife_encode_meta_u16 (net/sched/act_ife.c:57)
[ 138.425910][ C1] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114)
[ 138.425916][ C1] ? __asan_memcpy (mm/kasan/shadow.c:105 (discriminator 3))
[ 138.425921][ C1] ? __pfx_ife_encode_meta_u16 (net/sched/act_ife.c:45)
[ 138.425927][ C1] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)
[ 138.425931][ C1] tcf_ife_act (net/sched/act_ife.c:847 net/sched/act_ife.c:879)
To solve this issue, fix the replace behavior by adding the metalist to
the ife rcu data structure.
Severity
7.8 (High)
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://git.kernel.org/stable/c/56ade7ddea6ce6055… | |
| https://git.kernel.org/stable/c/5b1449301ca070814… | |
| https://git.kernel.org/stable/c/91a89d3bdc2f63d98… | |
| https://git.kernel.org/stable/c/cd888c3966672239f… | |
| https://git.kernel.org/stable/c/691866c4cca54dc4d… | |
| https://git.kernel.org/stable/c/e2cedd400c3ec0302… |
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
aa9fd9a325d51fa0b11153b03b8fefff569fa955 , < 56ade7ddea6ce605552341785d08e365c3f61861
(git)
Affected: aa9fd9a325d51fa0b11153b03b8fefff569fa955 , < 5b1449301ca070814d866990b46f48d3f39ea4ee (git) Affected: aa9fd9a325d51fa0b11153b03b8fefff569fa955 , < 91a89d3bdc2f63d983adc13d1771631663c5dc1b (git) Affected: aa9fd9a325d51fa0b11153b03b8fefff569fa955 , < cd888c3966672239f2e0707b846a5a936ac9038a (git) Affected: aa9fd9a325d51fa0b11153b03b8fefff569fa955 , < 691866c4cca54dc4df762276b49e89b36e046947 (git) Affected: aa9fd9a325d51fa0b11153b03b8fefff569fa955 , < e2cedd400c3ec0302ffca2490e8751772906ac23 (git) |
|
| Linux | Linux |
Affected:
4.15
Unaffected: 0 , < 4.15 (semver) Unaffected: 6.1.167 , ≤ 6.1.* (semver) Unaffected: 6.6.130 , ≤ 6.6.* (semver) Unaffected: 6.12.77 , ≤ 6.12.* (semver) Unaffected: 6.18.17 , ≤ 6.18.* (semver) Unaffected: 6.19.7 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix) |
{
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"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/sched: act_ife: Fix metalist update behavior\n\nWhenever an ife action replace changes the metalist, instead of\nreplacing the old data on the metalist, the current ife code is appending\nthe new metadata. Aside from being innapropriate behavior, this may lead\nto an unbounded addition of metadata to the metalist which might cause an\nout of bounds error when running the encode op:\n\n[ 138.423369][ C1] ==================================================================\n[ 138.424317][ C1] BUG: KASAN: slab-out-of-bounds in ife_tlv_meta_encode (net/ife/ife.c:168)\n[ 138.424906][ C1] Write of size 4 at addr ffff8880077f4ffe by task ife_out_out_bou/255\n[ 138.425778][ C1] CPU: 1 UID: 0 PID: 255 Comm: ife_out_out_bou Not tainted 7.0.0-rc1-00169-gfbdfa8da05b6 #624 PREEMPT(full)\n[ 138.425795][ C1] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011\n[ 138.425800][ C1] Call Trace:\n[ 138.425804][ C1] \u003cIRQ\u003e\n[ 138.425808][ C1] dump_stack_lvl (lib/dump_stack.c:122)\n[ 138.425828][ C1] print_report (mm/kasan/report.c:379 mm/kasan/report.c:482)\n[ 138.425839][ C1] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)\n[ 138.425844][ C1] ? __virt_addr_valid (./arch/x86/include/asm/preempt.h:95 (discriminator 1) ./include/linux/rcupdate.h:975 (discriminator 1) ./include/linux/mmzone.h:2207 (discriminator 1) arch/x86/mm/physaddr.c:54 (discriminator 1))\n[ 138.425853][ C1] ? ife_tlv_meta_encode (net/ife/ife.c:168)\n[ 138.425859][ C1] kasan_report (mm/kasan/report.c:221 mm/kasan/report.c:597)\n[ 138.425868][ C1] ? ife_tlv_meta_encode (net/ife/ife.c:168)\n[ 138.425878][ C1] kasan_check_range (mm/kasan/generic.c:186 (discriminator 1) mm/kasan/generic.c:200 (discriminator 1))\n[ 138.425884][ C1] __asan_memset (mm/kasan/shadow.c:84 (discriminator 2))\n[ 138.425889][ C1] ife_tlv_meta_encode (net/ife/ife.c:168)\n[ 138.425893][ C1] ? ife_tlv_meta_encode (net/ife/ife.c:171)\n[ 138.425898][ C1] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)\n[ 138.425903][ C1] ife_encode_meta_u16 (net/sched/act_ife.c:57)\n[ 138.425910][ C1] ? __pfx_do_raw_spin_lock (kernel/locking/spinlock_debug.c:114)\n[ 138.425916][ C1] ? __asan_memcpy (mm/kasan/shadow.c:105 (discriminator 3))\n[ 138.425921][ C1] ? __pfx_ife_encode_meta_u16 (net/sched/act_ife.c:45)\n[ 138.425927][ C1] ? srso_alias_return_thunk (arch/x86/lib/retpoline.S:221)\n[ 138.425931][ C1] tcf_ife_act (net/sched/act_ife.c:847 net/sched/act_ife.c:879)\n\nTo solve this issue, fix the replace behavior by adding the metalist to\nthe ife rcu data structure."
}
],
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{
"cvssV3_1": {
"baseScore": 7.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-05-11T22:05:43.120Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/56ade7ddea6ce605552341785d08e365c3f61861"
},
{
"url": "https://git.kernel.org/stable/c/5b1449301ca070814d866990b46f48d3f39ea4ee"
},
{
"url": "https://git.kernel.org/stable/c/91a89d3bdc2f63d983adc13d1771631663c5dc1b"
},
{
"url": "https://git.kernel.org/stable/c/cd888c3966672239f2e0707b846a5a936ac9038a"
},
{
"url": "https://git.kernel.org/stable/c/691866c4cca54dc4df762276b49e89b36e046947"
},
{
"url": "https://git.kernel.org/stable/c/e2cedd400c3ec0302ffca2490e8751772906ac23"
}
],
"title": "net/sched: act_ife: Fix metalist update behavior",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-23378",
"datePublished": "2026-03-25T10:27:57.986Z",
"dateReserved": "2026-01-13T15:37:46.006Z",
"dateUpdated": "2026-05-11T22:05:43.120Z",
"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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