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CERTFR-2026-AVI-0809
Vulnerability from certfr_avis - Published: 2026-06-26 - Updated: 2026-06-26
De multiples vulnérabilités ont été découvertes dans le noyau Linux de Debian. Certaines d'entre elles permettent à un attaquant de provoquer une élévation de privilèges, une atteinte à la confidentialité des données et un déni de service.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
References
| Title | Publication Time | Tags | |||
|---|---|---|---|---|---|
|
|||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Debian",
"product": {
"name": "Debian",
"vendor": {
"name": "Debian",
"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-2026-45842",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-45842"
},
{
"name": "CVE-2026-45845",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-45845"
},
{
"name": "CVE-2025-22069",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-22069"
},
{
"name": "CVE-2026-46319",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46319"
},
{
"name": "CVE-2026-31486",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31486"
},
{
"name": "CVE-2026-23346",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23346"
},
{
"name": "CVE-2026-23247",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23247"
},
{
"name": "CVE-2026-46170",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46170"
},
{
"name": "CVE-2026-46117",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46117"
},
{
"name": "CVE-2025-71289",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-71289"
},
{
"name": "CVE-2026-31613",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31613"
},
{
"name": "CVE-2026-43331",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43331"
},
{
"name": "CVE-2026-46158",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46158"
},
{
"name": "CVE-2026-46320",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46320"
},
{
"name": "CVE-2026-46137",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46137"
},
{
"name": "CVE-2026-45841",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-45841"
},
{
"name": "CVE-2026-46331",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46331"
},
{
"name": "CVE-2026-23469",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23469"
},
{
"name": "CVE-2026-31420",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31420"
},
{
"name": "CVE-2026-46203",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46203"
},
{
"name": "CVE-2026-31663",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31663"
},
{
"name": "CVE-2026-45846",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-45846"
},
{
"name": "CVE-2026-46323",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46323"
},
{
"name": "CVE-2025-68768",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-68768"
},
{
"name": "CVE-2026-46315",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46315"
},
{
"name": "CVE-2025-68251",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-68251"
},
{
"name": "CVE-2026-46321",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46321"
},
{
"name": "CVE-2026-52908",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-52908"
},
{
"name": "CVE-2026-45840",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-45840"
},
{
"name": "CVE-2026-45844",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-45844"
},
{
"name": "CVE-2026-52910",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-52910"
},
{
"name": "CVE-2026-45930",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-45930"
},
{
"name": "CVE-2026-46274",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46274"
},
{
"name": "CVE-2026-46244",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46244"
},
{
"name": "CVE-2026-31717",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31717"
},
{
"name": "CVE-2026-52911",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-52911"
},
{
"name": "CVE-2026-45843",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-45843"
},
{
"name": "CVE-2026-46316",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46316"
},
{
"name": "CVE-2026-46160",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46160"
},
{
"name": "CVE-2026-43303",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43303"
},
{
"name": "CVE-2026-43245",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43245"
},
{
"name": "CVE-2026-52909",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-52909"
},
{
"name": "CVE-2026-23394",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23394"
},
{
"name": "CVE-2026-45838",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-45838"
},
{
"name": "CVE-2026-23272",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-23272"
},
{
"name": "CVE-2026-31560",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31560"
},
{
"name": "CVE-2026-46216",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46216"
},
{
"name": "CVE-2026-46275",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46275"
},
{
"name": "CVE-2026-45850",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-45850"
},
{
"name": "CVE-2026-43116",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43116"
},
{
"name": "CVE-2026-46322",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-46322"
},
{
"name": "CVE-2026-45839",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-45839"
},
{
"name": "CVE-2026-43219",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43219"
}
],
"initial_release_date": "2026-06-26T00:00:00",
"last_revision_date": "2026-06-26T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-0809",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-06-26T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service"
},
{
"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 Debian. 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 un d\u00e9ni de service.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans le noyau Linux de Debian",
"vendor_advisories": [
{
"published_at": "2026-06-21",
"title": "Bulletin de s\u00e9curit\u00e9 Debian msg00266",
"url": "https://lists.debian.org/debian-security-announce/2026/msg00266.html"
}
]
}
CVE-2026-46275 (GCVE-0-2026-46275)
Vulnerability from cvelistv5 – Published: 2026-06-08 14:30 – Updated: 2026-08-05 12:30
VLAI
EPSS
VEX
Title
Bluetooth: hci_uart: fix UAFs and race conditions in close and init paths
Summary
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: hci_uart: fix UAFs and race conditions in close and init paths
Vulnerabilities leading to Use-After-Free (UAF) and Null Pointer
Dereference (NPD) conditions were observed in the lifecycle management
of hci_uart.
The primary issue arises because the workqueues (init_ready and
write_work) are only flushed/cancelled if the HCI_UART_PROTO_READY
flag is set during TTY close. If a hangup occurs before setup completes,
hci_uart_tty_close() skips the teardown of these workqueues and
proceeds to free the `hu` struct. When the scheduled work executes
later, it blindly dereferences the freed `hu` struct.
Furthermore, several data races and UAFs were identified in the teardown
sequence:
1. Calling hci_uart_flush() from hci_uart_close() without effectively
disabling write_work causes a race condition where both can concurrently
double-free hu->tx_skb. This happens because protocol timers can
concurrently invoke hci_uart_tx_wakeup() and requeue write_work.
2. Calling hci_free_dev(hdev) before hu->proto->close(hu) causes a UAF
when vendor specific protocol close callbacks dereference hu->hdev.
3. In the initialization error paths, failing to take the proto_lock
write lock before clearing PROTO_READY leads to races with active
readers. Additionally, hci_uart_tty_receive() accesses hu->hdev
outside the read lock, leading to UAFs if the initialization error
path frees hdev concurrently.
Fix these synchronization and lifecycle issues by:
1. Re-ordering hci_uart_tty_close() to clear HCI_UART_PROTO_READY first,
followed immediately by a cancel_work_sync(&hu->write_work). Clearing
the flag locks out concurrent protocol timers from successfully invoking
hci_uart_tx_wakeup(), effectively rendering the cancellation permanent
and preventing the tx_skb double-free.
2. Note: Clearing PROTO_READY early causes hci_uart_close() to skip
hu->proto->flush(). This is perfectly safe in the tty_close path
because hu->proto->close() executes shortly after, which intrinsically
purges all protocol SKB queues and tears down the state.
3. Relocating hu->proto->close(hu) strictly prior to hci_free_dev(hdev)
across all close and error paths to prevent vendor-level UAFs.
4. Moving the hdev->stat.byte_rx increment in hci_uart_tty_receive()
inside the proto_lock read-side critical section to safely synchronize
with device unregistration.
5. Adding cancel_work_sync(&hu->write_work) to hci_uart_close() to safely
flush the workqueue before hci_uart_flush() is invoked via the HCI core.
6. Utilizing cancel_work_sync() instead of disable_work_sync() across
all paths to prevent permanently breaking user-space retry capabilities.
Severity
7.8 (High)
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
3b799254cf6f481460719023d7a18f46651e5e7f , < 78aad93e938f013d9272fe0ee168f27883afa95c
(git)
Affected: 3b799254cf6f481460719023d7a18f46651e5e7f , < e2d19969c8d9198ecc3090bcd5312ecd503a3339 (git) Affected: 3b799254cf6f481460719023d7a18f46651e5e7f , < c85cff648a2bc92322912db5f1727ad05afae7b6 (git) Affected: 3b799254cf6f481460719023d7a18f46651e5e7f , < 9d20d48be2c4a071fb015eb09bda2cecd25daf34 (git) Affected: 3b799254cf6f481460719023d7a18f46651e5e7f , < 81c7a3c22a0f2808cf4ae0b4908f59763b23606d (git) Affected: 3b799254cf6f481460719023d7a18f46651e5e7f , < 192cb0f1ca706d9a1bc36ae0ad5f666d1e4fd894 (git) Affected: 3b799254cf6f481460719023d7a18f46651e5e7f , < 7338031946bd06f6dff149e67b60c4cd083bfea8 (git) Affected: 3b799254cf6f481460719023d7a18f46651e5e7f , < c1bb9336ae6b54a5f6a353c4bd4ed9a4307e429b (git) Affected: cd27019bc149f20f12ebec943c2b4c775745a5a0 (git) Affected: aea63181b6fcb6b9ccde1ada9ea51be19c4015af (git) Affected: 0d234d1135dcd8876de0576dac68efd0a87eef87 (git) Affected: 3fe978892ab46efc2f3830d9abc015eff72caaf9 (git) Affected: 0d987e14bebaf0f67ee7dbefaf6165c62cd1d27f (git) Affected: 4.14.203 , < 4.15 (semver) Affected: 4.19.153 , < 4.20 (semver) Affected: 5.4.73 , < 5.5 (semver) Affected: 5.8.17 , < 5.9 (semver) Affected: 5.9.2 , < 5.10 (semver) |
|
| Linux | Linux |
Affected:
5.10
Unaffected: 0 , < 5.10 (semver) Unaffected: 5.10.258 , ≤ 5.10.* (semver) Unaffected: 5.15.209 , ≤ 5.15.* (semver) Unaffected: 6.1.175 , ≤ 6.1.* (semver) Unaffected: 6.6.142 , ≤ 6.6.* (semver) Unaffected: 6.12.92 , ≤ 6.12.* (semver) Unaffected: 6.18.34 , ≤ 6.18.* (semver) Unaffected: 7.0.11 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix) |
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/bluetooth/hci_ldisc.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
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"versionType": "git"
},
{
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"status": "affected",
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"versionType": "git"
},
{
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"status": "affected",
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},
{
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},
{
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},
{
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},
{
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"versionType": "git"
},
{
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"status": "affected",
"version": "3b799254cf6f481460719023d7a18f46651e5e7f",
"versionType": "git"
},
{
"status": "affected",
"version": "cd27019bc149f20f12ebec943c2b4c775745a5a0",
"versionType": "git"
},
{
"status": "affected",
"version": "aea63181b6fcb6b9ccde1ada9ea51be19c4015af",
"versionType": "git"
},
{
"status": "affected",
"version": "0d234d1135dcd8876de0576dac68efd0a87eef87",
"versionType": "git"
},
{
"status": "affected",
"version": "3fe978892ab46efc2f3830d9abc015eff72caaf9",
"versionType": "git"
},
{
"status": "affected",
"version": "0d987e14bebaf0f67ee7dbefaf6165c62cd1d27f",
"versionType": "git"
},
{
"lessThan": "4.15",
"status": "affected",
"version": "4.14.203",
"versionType": "semver"
},
{
"lessThan": "4.20",
"status": "affected",
"version": "4.19.153",
"versionType": "semver"
},
{
"lessThan": "5.5",
"status": "affected",
"version": "5.4.73",
"versionType": "semver"
},
{
"lessThan": "5.9",
"status": "affected",
"version": "5.8.17",
"versionType": "semver"
},
{
"lessThan": "5.10",
"status": "affected",
"version": "5.9.2",
"versionType": "semver"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/bluetooth/hci_ldisc.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.10"
},
{
"lessThan": "5.10",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.258",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.209",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.175",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.142",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.92",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.34",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.0.*",
"status": "unaffected",
"version": "7.0.11",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.1",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.258",
"versionStartIncluding": "5.10",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.209",
"versionStartIncluding": "5.10",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.175",
"versionStartIncluding": "5.10",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.142",
"versionStartIncluding": "5.10",
"vulnerable": true
},
{
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"versionEndExcluding": "6.12.92",
"versionStartIncluding": "5.10",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.18.34",
"versionStartIncluding": "5.10",
"vulnerable": true
},
{
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"versionEndExcluding": "7.0.11",
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},
{
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"versionEndExcluding": "7.1",
"versionStartIncluding": "5.10",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.14.203",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "4.19.153",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.4.73",
"vulnerable": true
},
{
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_uart: fix UAFs and race conditions in close and init paths\n\nVulnerabilities leading to Use-After-Free (UAF) and Null Pointer\nDereference (NPD) conditions were observed in the lifecycle management\nof hci_uart.\n\nThe primary issue arises because the workqueues (init_ready and\nwrite_work) are only flushed/cancelled if the HCI_UART_PROTO_READY\nflag is set during TTY close. If a hangup occurs before setup completes,\nhci_uart_tty_close() skips the teardown of these workqueues and\nproceeds to free the `hu` struct. When the scheduled work executes\nlater, it blindly dereferences the freed `hu` struct.\n\nFurthermore, several data races and UAFs were identified in the teardown\nsequence:\n1. Calling hci_uart_flush() from hci_uart_close() without effectively\n disabling write_work causes a race condition where both can concurrently\n double-free hu-\u003etx_skb. This happens because protocol timers can\n concurrently invoke hci_uart_tx_wakeup() and requeue write_work.\n2. Calling hci_free_dev(hdev) before hu-\u003eproto-\u003eclose(hu) causes a UAF\n when vendor specific protocol close callbacks dereference hu-\u003ehdev.\n3. In the initialization error paths, failing to take the proto_lock\n write lock before clearing PROTO_READY leads to races with active\n readers. Additionally, hci_uart_tty_receive() accesses hu-\u003ehdev\n outside the read lock, leading to UAFs if the initialization error\n path frees hdev concurrently.\n\nFix these synchronization and lifecycle issues by:\n1. Re-ordering hci_uart_tty_close() to clear HCI_UART_PROTO_READY first,\n followed immediately by a cancel_work_sync(\u0026hu-\u003ewrite_work). Clearing\n the flag locks out concurrent protocol timers from successfully invoking\n hci_uart_tx_wakeup(), effectively rendering the cancellation permanent\n and preventing the tx_skb double-free.\n2. Note: Clearing PROTO_READY early causes hci_uart_close() to skip\n hu-\u003eproto-\u003eflush(). This is perfectly safe in the tty_close path\n because hu-\u003eproto-\u003eclose() executes shortly after, which intrinsically\n purges all protocol SKB queues and tears down the state.\n3. Relocating hu-\u003eproto-\u003eclose(hu) strictly prior to hci_free_dev(hdev)\n across all close and error paths to prevent vendor-level UAFs.\n4. Moving the hdev-\u003estat.byte_rx increment in hci_uart_tty_receive()\n inside the proto_lock read-side critical section to safely synchronize\n with device unregistration.\n5. Adding cancel_work_sync(\u0026hu-\u003ewrite_work) to hci_uart_close() to safely\n flush the workqueue before hci_uart_flush() is invoked via the HCI core.\n6. Utilizing cancel_work_sync() instead of disable_work_sync() across\n all paths to prevent permanently breaking user-space retry capabilities."
}
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"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"
},
"scenarios": [
{
"lang": "en",
"value": "AV:L - Exploitation requires local TTY control (TIOCSETD to N_HCI, HCIUARTSETPROTO ioctl, hangup/close) gated by CAP_NET_ADMIN at hci_uart_tty_open(); the bugs are in driver lifecycle teardown, not in processing of remote Bluetooth over-the-air packets.\nAC:L - The attacker controls both sides of every race by concurrently opening/closing the TTY line discipline, issuing HCIUART ioctls, and timing hangup against in-flight workqueues and protocol timers; UAF conditions are reliably winnable without luck-dependent memory layout.\nPR:L - hci_uart_tty_open() explicitly requires CAP_NET_ADMIN, and adapter teardown paths are similarly admin-gated; CAP_NET_ADMIN is obtainable by an unprivileged user inside a user namespace, satisfying the Low privileges threshold rather than High.\nUI:N - Once the attacker has the required local TTY/HCI access, triggering the UAF or double-free races requires no action from a separate victim user.\nS:U - The vulnerability corrupts kernel heap memory within the kernel\u0027s own security boundary; successful exploitation yields kernel privilege escalation, not a cross-boundary escape such as VM or sandbox breakout.\nC:H - Multiple use-after-free conditions on the hci_uart and hci_dev structures allow dereferencing attacker-influenced freed memory, providing a standard kernel info-leak primitive consistent with UAF severity guidance.\nI:H - The UAF and hu-\u003etx_skb double-free races enable control of freed slab objects and heap grooming, providing a path to arbitrary kernel memory corruption and potential code execution in kernel context.\nA:H - Use-after-free and double-free in kernel workqueue and teardown paths reliably cause kernel oops or panic, and can be triggered repeatedly to deny availability of the affected system."
}
]
}
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CVE-2026-46315 (GCVE-0-2026-46315)
Vulnerability from cvelistv5 – Published: 2026-06-09 07:38 – Updated: 2026-06-14 18:08
VLAI
EPSS
VEX
Title
io_uring/waitid: clear waitid info before copying it to userspace
Summary
In the Linux kernel, the following vulnerability has been resolved:
io_uring/waitid: clear waitid info before copying it to userspace
IORING_OP_WAITID stores its result fields in struct io_waitid::info and
later copies them to userspace siginfo. The prep path initializes the
request arguments, but it does not initialize info itself.
If the wait operation completes without reporting a child event, the common
wait code can return without writing wo_info. In that case io_waitid_finish()
still copies iw->info to userspace, exposing stale bytes from the reused
io_kiocb command storage.
Clear the result storage during prep so the io_uring path matches the
regular waitid syscall, which uses a zero-initialized struct waitid_info.
Severity
No CVSS data available.
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
f31ecf671ddc498f20219453395794ff2383e06b , < 954518e5a4a5efc5033253f6e36fc7b9f98363a3
(git)
Affected: f31ecf671ddc498f20219453395794ff2383e06b , < b737c6612c60c23b40a9f31749b99e6f61943847 (git) Affected: f31ecf671ddc498f20219453395794ff2383e06b , < 4d2a0de611ab60d02fc768ae0cd5918b16bd5474 (git) Affected: f31ecf671ddc498f20219453395794ff2383e06b , < 93d93f5f8da791e98159795c6ef683f45bd95d13 (git) |
|
| Linux | Linux |
Affected:
6.7
Unaffected: 0 , < 6.7 (semver) Unaffected: 6.12.92 , ≤ 6.12.* (semver) Unaffected: 6.18.34 , ≤ 6.18.* (semver) Unaffected: 7.0.11 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix) |
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CVE-2026-46316 (GCVE-0-2026-46316)
Vulnerability from cvelistv5 – Published: 2026-06-09 11:52 – Updated: 2026-08-05 12:31
VLAI
EPSS
VEX
Title
KVM: arm64: vgic-its: Drop the translation cache reference only for the erased entry
Summary
In the Linux kernel, the following vulnerability has been resolved:
KVM: arm64: vgic-its: Drop the translation cache reference only for the erased entry
vgic_its_invalidate_cache() walks the per-ITS translation cache with
xa_for_each() and drops the cache's reference on each entry with
vgic_put_irq(). It puts the iterated pointer, though, rather than the
value returned by xa_erase().
The function is called from contexts that do not exclude one another: the
ITS command handlers hold its_lock, the GITS_CTLR write path holds
cmd_lock, and the path that clears EnableLPIs in a redistributor's
GICR_CTLR holds neither. Two or more of them can drain the same cache
concurrently, and if each one observes the same entry, erases it and then
puts it, the single reference the cache holds on that entry is dropped
more than once. The entry can then be freed while an ITE still maps it.
xa_erase() is atomic and returns the previous entry, so put only the entry
that this context actually removed. The cache reference is then dropped
exactly once per entry even when the invalidations run concurrently, and
the behavior is unchanged when only one context runs.
Severity
9.3 (Critical)
CWE
- CWE-911 - Improper Update of Reference Count
Assigner
References
15 references
Impacted products
15 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
8201d1028caa4fae88e222c4e8cf541fdf45b821 , < b7b72e88046328c9fdc638fe887d4240257dd5dc
(git)
Affected: 8201d1028caa4fae88e222c4e8cf541fdf45b821 , < 2bbc395e81bd29c543a0529a678327e932a7ec69 (git) Affected: 8201d1028caa4fae88e222c4e8cf541fdf45b821 , < 9121f4605ab94969f62d1b5714ca3c6c69bd202f (git) Affected: 8201d1028caa4fae88e222c4e8cf541fdf45b821 , < 13031fb6b8357fbbcded2a7f4cba73e4781ee594 (git) |
|
| Linux | Linux |
Affected:
6.10
Unaffected: 0 , < 6.10 (semver) Unaffected: 6.12.93 , ≤ 6.12.* (semver) Unaffected: 6.18.35 , ≤ 6.18.* (semver) Unaffected: 7.0.12 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix) |
|
| Red Hat | Red Hat Enterprise Linux 10 |
Unaffected:
0:6.12.0-211.30.1.el10_2 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:10.2 |
|
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support |
Unaffected:
0:6.12.0-55.88.1.el10_0 , < *
(rpm)
cpe:/o:redhat:enterprise_linux_eus:10.0 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
0:5.14.0-687.22.1.el9_8 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9 cpe:/o:redhat:enterprise_linux:9 |
|
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support |
Unaffected:
0:5.14.0-570.127.1.el9_6 , < *
(rpm)
cpe:/a:redhat:rhel_eus:9.6 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.19 |
Unaffected:
4.19.9.6.202607220857-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.19::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.20 |
Unaffected:
4.20.9.6.202607151937-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.20::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.21 |
Unaffected:
4.21.9.6.202607151836-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.21::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.22 |
Unaffected:
4.22.9.8.202607152026-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.22::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 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9 |
|
| Red Hat | Red Hat Enterprise Linux for NVIDIA 26 |
cpe:/a:redhat:enterprise_linux_nvidia: |
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CVE-2026-46319 (GCVE-0-2026-46319)
Vulnerability from cvelistv5 – Published: 2026-06-09 12:11 – Updated: 2026-08-05 12:31
VLAI
EPSS
VEX
Title
net/sched: act_ct: Only release RCU read lock after ct_ft
Summary
In the Linux kernel, the following vulnerability has been resolved:
net/sched: act_ct: Only release RCU read lock after ct_ft
When looking up a flow table in act_ct in tcf_ct_flow_table_get(),
rhashtable_lookup_fast() internally opens and closes an RCU read critical
section before returning ct_ft.
The tcf_ct_flow_table_cleanup_work() can complete before refcount_inc_not_zero()
is invoked on the returned ct_ft resulting in a UAF on the already freed ct_ft
object. This vulnerability can lead to privilege escalation.
Analysis from zdi-disclosures@trendmicro.com:
When initializing act_ct, tcf_ct_init() is called, which internally triggers
tcf_ct_flow_table_get().
static int tcf_ct_flow_table_get(struct net *net, struct tcf_ct_params *params)
{
struct zones_ht_key key = { .net = net, .zone = params->zone };
struct tcf_ct_flow_table *ct_ft;
int err = -ENOMEM;
mutex_lock(&zones_mutex);
ct_ft = rhashtable_lookup_fast(&zones_ht, &key, zones_params); // [1]
if (ct_ft && refcount_inc_not_zero(&ct_ft->ref)) // [2]
goto out_unlock;
...
}
static __always_inline void *rhashtable_lookup_fast(
struct rhashtable *ht, const void *key,
const struct rhashtable_params params)
{
void *obj;
rcu_read_lock();
obj = rhashtable_lookup(ht, key, params);
rcu_read_unlock();
return obj;
}
At [1], rhashtable_lookup_fast() looks up and returns the corresponding ct_ft
from zones_ht . The lookup is performed within an RCU read critical section
through rcu_read_lock() / rcu_read_unlock(), which prevents the object from
being freed. However, at the point of function return, rcu_read_unlock() has
already been called, and there is nothing preventing ct_ft from being freed
before reaching refcount_inc_not_zero(&ct_ft->ref) at [2]. This interval becomes
the race window, during which ct_ft can be freed.
Free Process:
tcf_ct_flow_table_put() is executed through the path tcf_ct_cleanup() call_rcu()
tcf_ct_params_free_rcu() tcf_ct_params_free() tcf_ct_flow_table_put().
static void tcf_ct_flow_table_put(struct tcf_ct_flow_table *ct_ft)
{
if (refcount_dec_and_test(&ct_ft->ref)) {
rhashtable_remove_fast(&zones_ht, &ct_ft->node, zones_params);
INIT_RCU_WORK(&ct_ft->rwork, tcf_ct_flow_table_cleanup_work); // [3]
queue_rcu_work(act_ct_wq, &ct_ft->rwork);
}
}
At [3], tcf_ct_flow_table_cleanup_work() is scheduled as RCU work
static void tcf_ct_flow_table_cleanup_work(struct work_struct *work)
{
struct tcf_ct_flow_table *ct_ft;
struct flow_block *block;
ct_ft = container_of(to_rcu_work(work), struct tcf_ct_flow_table,
rwork);
nf_flow_table_free(&ct_ft->nf_ft);
block = &ct_ft->nf_ft.flow_block;
down_write(&ct_ft->nf_ft.flow_block_lock);
WARN_ON(!list_empty(&block->cb_list));
up_write(&ct_ft->nf_ft.flow_block_lock);
kfree(ct_ft); // [4]
module_put(THIS_MODULE);
}
tcf_ct_flow_table_cleanup_work() frees ct_ft at [4]. When this function executes
between [1] and [2], UAF occurs.
This race condition has a very short race window, making it generally
difficult to trigger. Therefore, to trigger the vulnerability an msleep(100) was
inserted after[1]
Severity
7.8 (High)
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
138470a9b2cc2e26e6018300394afc3858a54e6a , < ece578ca61e572df96cfc80456357ebfae0b4b9e
(git)
Affected: 138470a9b2cc2e26e6018300394afc3858a54e6a , < a2e0c045c87aa252eb61412e67dd91f2c2b19f81 (git) Affected: 138470a9b2cc2e26e6018300394afc3858a54e6a , < 67c9ecc9f2575273ed1323e312881fc98ac83d6d (git) Affected: 138470a9b2cc2e26e6018300394afc3858a54e6a , < f23424a0ddadb494d4bd57056a7ca703312d3a7b (git) Affected: 138470a9b2cc2e26e6018300394afc3858a54e6a , < 17dfb67cb399b660105d9a8c6100851c0d0cdc70 (git) Affected: 138470a9b2cc2e26e6018300394afc3858a54e6a , < 4c727c6967a41b37efe0f26332ca9ec5b74785a3 (git) Affected: 138470a9b2cc2e26e6018300394afc3858a54e6a , < 3e20e1b3058e0b94638e7b931c138e840e266724 (git) Affected: 138470a9b2cc2e26e6018300394afc3858a54e6a , < f462dca0c8415bf0058d0ffa476354c4476d0f09 (git) |
|
| Linux | Linux |
Affected:
5.7
Unaffected: 0 , < 5.7 (semver) Unaffected: 5.10.258 , ≤ 5.10.* (semver) Unaffected: 5.15.209 , ≤ 5.15.* (semver) Unaffected: 6.1.175 , ≤ 6.1.* (semver) Unaffected: 6.6.141 , ≤ 6.6.* (semver) Unaffected: 6.12.91 , ≤ 6.12.* (semver) Unaffected: 6.18.33 , ≤ 6.18.* (semver) Unaffected: 7.0.10 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix) |
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CVE-2026-46320 (GCVE-0-2026-46320)
Vulnerability from cvelistv5 – Published: 2026-06-09 12:11 – Updated: 2026-08-05 12:31
VLAI
EPSS
VEX
Title
tap: free page on error paths in tap_get_user_xdp()
Summary
In the Linux kernel, the following vulnerability has been resolved:
tap: free page on error paths in tap_get_user_xdp()
tap_get_user_xdp() rejects a frame shorter than ETH_HLEN with -EINVAL,
and returns -ENOMEM when build_skb() fails. Both paths jump to the err
label without freeing the page that vhost_net_build_xdp() allocated for
the frame. tap_sendmsg() discards the per-buffer return value and always
returns 0, so vhost_tx_batch() takes the success path and never frees
the page; each rejected frame in a batch leaks one page-frag chunk.
Free the page on both error paths, before the skb is built. This is the
tap counterpart of the same leak in tun_xdp_one().
Severity
7.4 (High)
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
0efac27791ee068075d80f07c55a229b1335ce12 , < 8d03e65eb6cfbffec471a6b65416f93679bf3286
(git)
Affected: 0efac27791ee068075d80f07c55a229b1335ce12 , < f979971835dddbca86cf99e3b2e2b94a408a1ab2 (git) Affected: 0efac27791ee068075d80f07c55a229b1335ce12 , < 3f52a86a482a69294c50a5a2a097bd6f4104990a (git) Affected: 0efac27791ee068075d80f07c55a229b1335ce12 , < d30aac0fa00ca0afc3e08174cf7f974a66bdcf05 (git) Affected: 0efac27791ee068075d80f07c55a229b1335ce12 , < d68eab61944a9b0826fa2e954e42db1aa3201b7a (git) Affected: 0efac27791ee068075d80f07c55a229b1335ce12 , < e27c17346628cb56843a83f93ac63c314c00f388 (git) Affected: 0efac27791ee068075d80f07c55a229b1335ce12 , < 18a84c35842e19cd3c5534d8cee73d31863f696d (git) Affected: 0efac27791ee068075d80f07c55a229b1335ce12 , < 3bcf7aec6a9d16438f2cec29f5d7c8d5b8edf9b2 (git) |
|
| Linux | Linux |
Affected:
4.20
Unaffected: 0 , < 4.20 (semver) Unaffected: 5.10.259 , ≤ 5.10.* (semver) Unaffected: 5.15.210 , ≤ 5.15.* (semver) Unaffected: 6.1.176 , ≤ 6.1.* (semver) Unaffected: 6.6.143 , ≤ 6.6.* (semver) Unaffected: 6.12.94 , ≤ 6.12.* (semver) Unaffected: 6.18.36 , ≤ 6.18.* (semver) Unaffected: 7.0.12 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix) |
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CVE-2026-46321 (GCVE-0-2026-46321)
Vulnerability from cvelistv5 – Published: 2026-06-09 12:11 – Updated: 2026-08-05 12:31
VLAI
EPSS
VEX
Title
tun: free page on short-frame rejection in tun_xdp_one()
Summary
In the Linux kernel, the following vulnerability has been resolved:
tun: free page on short-frame rejection in tun_xdp_one()
tun_xdp_one() returns -EINVAL on a frame shorter than ETH_HLEN without
freeing the page that vhost_net_build_xdp() allocated for it.
tun_sendmsg() discards that -EINVAL and still returns total_len, so
vhost_tx_batch() takes the success path and never frees the page; each
short frame in a batch leaks one page-frag chunk.
A local process that can open /dev/net/tun and /dev/vhost-net can hit
this path: it attaches a tun/tap device as the vhost-net backend and
feeds TX descriptors whose length minus the virtio-net header is below
ETH_HLEN. Each kick leaks the page-frag chunks for that batch, and a
tight submission loop exhausts host memory and triggers an OOM panic.
Free the page before returning -EINVAL, matching the XDP-program error
path in the same function.
Severity
7.1 (High)
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
6100e0237204890269e3f934acfc50d35fd6f319 , < 0a6f46a9332ad6958992d64d3b3a81a80b2ca940
(git)
Affected: 589382f50b4a5d90d16d8bc9dcbc0e927a3e39b2 , < 0e8211fcf9426f5adddf32516ba0f400ceb9544d (git) Affected: ad6b3f622ccfb4bfedfa53b6ebd91c3d1d04f146 , < e915445942af6dcea628bf66d6241641201a0c41 (git) Affected: d5ad89b7d01ed4e66fd04734fc63d6e78536692a , < 5b34f9e4fe2f203724a6e893d6df0316b9670057 (git) Affected: 049584807f1d797fc3078b68035450a9769eb5c3 , < 69863ff2720a0e9871f1a5710f2a33a94217fee0 (git) Affected: 049584807f1d797fc3078b68035450a9769eb5c3 , < 37a1c268c2c8090bf4dc552d732bd23ba36f8eb0 (git) Affected: 049584807f1d797fc3078b68035450a9769eb5c3 , < 98c67be9eb9de72465a071949e84a3cdb8fab5a3 (git) Affected: 049584807f1d797fc3078b68035450a9769eb5c3 , < f4feb1e20058e407cb00f45aff47f5b7e19a6bbf (git) Affected: 32b0aaba5dbc85816898167d9b5d45a22eae82e9 (git) Affected: a9d1c27e2ee3b0ea5d40c105d6e728fc114470bb (git) Affected: 8418f55302fa1d2eeb73e16e345167e545c598a5 (git) Affected: 5.10.223 , < 5.10.259 (semver) Affected: 5.15.164 , < 5.15.210 (semver) Affected: 6.1.102 , < 6.1.176 (semver) Affected: 6.6.43 , < 6.6.143 (semver) Affected: 5.4.281 , < 5.5 (semver) Affected: 6.9.12 , < 6.10 (semver) Affected: 6.10.2 , < 6.11 (semver) |
|
| Linux | Linux |
Affected:
6.11
Unaffected: 0 , < 6.11 (semver) Unaffected: 5.10.259 , ≤ 5.10.* (semver) Unaffected: 5.15.210 , ≤ 5.15.* (semver) Unaffected: 6.1.176 , ≤ 6.1.* (semver) Unaffected: 6.6.143 , ≤ 6.6.* (semver) Unaffected: 6.12.93 , ≤ 6.12.* (semver) Unaffected: 6.18.35 , ≤ 6.18.* (semver) Unaffected: 7.0.12 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix) |
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"datePublished": "2026-06-09T12:11:13.872Z",
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CVE-2026-46322 (GCVE-0-2026-46322)
Vulnerability from cvelistv5 – Published: 2026-06-09 12:11 – Updated: 2026-08-05 12:31
VLAI
EPSS
VEX
Title
tun: free page on build_skb failure in tun_xdp_one()
Summary
In the Linux kernel, the following vulnerability has been resolved:
tun: free page on build_skb failure in tun_xdp_one()
When build_skb() fails in tun_xdp_one(), the function sets ret to
-ENOMEM and jumps to the out label, which returns without freeing the
page that vhost_net_build_xdp() allocated for the frame. As with the
short-frame rejection path, tun_sendmsg() discards the per-buffer error
and still returns total_len, so vhost_tx_batch() takes the success path
and never frees the page. Each build_skb() failure in a batch leaks one
page-frag chunk.
Free the page before taking the error path, matching the put_page() the
other error exits of tun_xdp_one() already perform.
Severity
7.1 (High)
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
043d222f93ab8c76b56a3b315cd8692e35affb6c , < 26fe549b5192536b6c1c68a2dfdc8c0dcf9fa4a9
(git)
Affected: 043d222f93ab8c76b56a3b315cd8692e35affb6c , < 793385c154771603b8671dd8338927221e9d8d78 (git) Affected: 043d222f93ab8c76b56a3b315cd8692e35affb6c , < 2638a9c1521905bb5c5d1e95c8fbc09f79148ed7 (git) Affected: 043d222f93ab8c76b56a3b315cd8692e35affb6c , < 60d9c0d6cdde5420d6483c921b16fe5465eb5238 (git) Affected: 043d222f93ab8c76b56a3b315cd8692e35affb6c , < d16e38fac09a47bfcf98c1ad65a1bb53f94540f5 (git) Affected: 043d222f93ab8c76b56a3b315cd8692e35affb6c , < aa308e9dbb9acb17cacdbbce9e4504f69bac8385 (git) Affected: 043d222f93ab8c76b56a3b315cd8692e35affb6c , < 4fefc6156a162a9f50035c12091a5e5130c82c6e (git) Affected: 043d222f93ab8c76b56a3b315cd8692e35affb6c , < aa8963fdce667a42fb7f0bdd2909fadcab02f9a8 (git) |
|
| Linux | Linux |
Affected:
4.20
Unaffected: 0 , < 4.20 (semver) Unaffected: 5.10.259 , ≤ 5.10.* (semver) Unaffected: 5.15.210 , ≤ 5.15.* (semver) Unaffected: 6.1.176 , ≤ 6.1.* (semver) Unaffected: 6.6.143 , ≤ 6.6.* (semver) Unaffected: 6.12.93 , ≤ 6.12.* (semver) Unaffected: 6.18.35 , ≤ 6.18.* (semver) Unaffected: 7.0.12 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix) |
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CVE-2026-46323 (GCVE-0-2026-46323)
Vulnerability from cvelistv5 – Published: 2026-06-09 12:11 – Updated: 2026-08-07 12:04
VLAI
EPSS
VEX
Title
net: gro: don't merge zcopy skbs
Summary
In the Linux kernel, the following vulnerability has been resolved:
net: gro: don't merge zcopy skbs
skb_gro_receive() can currently copy frags between the source and GRO
skb, without checking the zerocopy status, and in particular the
SKBFL_MANAGED_FRAG_REFS flag.
When SKBFL_MANAGED_FRAG_REFS is set, the skb doesn't hold a reference
on the pages in shinfo->frags. Appending those frags to another skb's
frags without fixing up the page refcount can lead to UAF.
When either the last skb in the GRO chain (the one we would append
frags to) or the source skb is zerocopy, don't merge the skbs.
Severity
7.8 (High)
CWE
- CWE-123 - Write-what-where Condition
Assigner
References
19 references
Impacted products
17 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
753f1ca4e1e50248a1b760c9774d6d6b354562cc , < 3c6cc9f2ca65b6dd61b1af75452dc0e1cd0aad8d
(git)
Affected: 753f1ca4e1e50248a1b760c9774d6d6b354562cc , < 1f9c828556416fbe3f49386708ce999fc4d4da06 (git) Affected: 753f1ca4e1e50248a1b760c9774d6d6b354562cc , < 479084ae0e1d9cb7929cb4298d35623de189f80a (git) Affected: 753f1ca4e1e50248a1b760c9774d6d6b354562cc , < e334cbf3388fd9334503a778a82d9e9f14dd2f71 (git) Affected: 753f1ca4e1e50248a1b760c9774d6d6b354562cc , < 44bea2032af0425e4ce6d26a8af0ede79db49ec1 (git) Affected: 753f1ca4e1e50248a1b760c9774d6d6b354562cc , < 4db79a322db8c97f7b73b8a347395ef4d685eb40 (git) |
|
| Linux | Linux |
Affected:
6.0
Unaffected: 0 , < 6.0 (semver) Unaffected: 6.1.176 , ≤ 6.1.* (semver) Unaffected: 6.6.142 , ≤ 6.6.* (semver) Unaffected: 6.12.92 , ≤ 6.12.* (semver) Unaffected: 6.18.34 , ≤ 6.18.* (semver) Unaffected: 7.0.11 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix) |
|
| Red Hat | Red Hat Enterprise Linux 10 |
Unaffected:
0:6.12.0-211.38.1.el10_2 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:10.2 |
|
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support |
Unaffected:
0:6.12.0-55.82.1.el10_0 , < *
(rpm)
cpe:/o:redhat:enterprise_linux_eus:10.0 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
0:5.14.0-687.22.1.el9_8 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9 cpe:/o:redhat:enterprise_linux:9 |
|
| Red Hat | Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions |
Unaffected:
0:5.14.0-427.132.1.el9_4 , < *
(rpm)
cpe:/a:redhat:rhel_e4s:9.4 |
|
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support |
Unaffected:
0:5.14.0-570.123.1.el9_6 , < *
(rpm)
cpe:/a:redhat:rhel_eus:9.6 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.17 |
Unaffected:
417.94.202607240132-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.17::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.18 |
Unaffected:
418.94.202607211754-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.18::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.19 |
Unaffected:
4.19.9.6.202607220857-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.19::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.20 |
Unaffected:
4.20.9.6.202607221038-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.20::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.21 |
Unaffected:
4.21.9.6.202607221317-0 , < *
(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 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9 |
|
| Red Hat | Red Hat Enterprise Linux for NVIDIA 26 |
cpe:/a:redhat:enterprise_linux_nvidia: |
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CVE-2026-46331 (GCVE-0-2026-46331)
Vulnerability from cvelistv5 – Published: 2026-06-16 06:26 – Updated: 2026-08-05 12:31
VLAI
EPSS
VEX
Title
net/sched: fix pedit partial COW leading to page cache corruption
Summary
In the Linux kernel, the following vulnerability has been resolved:
net/sched: fix pedit partial COW leading to page cache corruption
tcf_pedit_act() computes the COW range for skb_ensure_writable()
once before the key loop using tcfp_off_max_hint, but the hint does
not account for the runtime header offset added by typed keys. This
can leave part of the write region un-COW'd.
Fix by moving skb_ensure_writable() inside the per-key loop where
the actual write offset is known, and add overflow checking on the
offset arithmetic. For negative offsets (e.g. Ethernet header edits
at ingress), use skb_cow() to COW the headroom instead. Guard
offset_valid() against INT_MIN, where negation is undefined.
Severity
7.8 (High)
6.7 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-29 00:00 UTC
Assigner
References
44 references
Impacted products
39 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
abe35bf3be51482593076d516a680d79e5fbc8e1 , < 544d857b42a1734b923040e13aa61a6fd4746cf2
(git)
Affected: b773640d5bb9e2acfd91e2695717af04d47aa116 , < d5d01d35a5a7d36f7cb679b67d9cbdd5205672dc (git) Affected: 8b796475fd7882663a870456466a4fb315cc1bd6 , < a071e057518decc5e3bec89855758f5f8786f2c5 (git) Affected: 8b796475fd7882663a870456466a4fb315cc1bd6 , < b685d6ef6f07a3b5ce814565a25f39f2157538a5 (git) Affected: 8b796475fd7882663a870456466a4fb315cc1bd6 , < 2bec122b9fb91507a758ab5e3e5c4fbe7cb3f61b (git) Affected: 8b796475fd7882663a870456466a4fb315cc1bd6 , < b198ed4e52580a7238c7c7082f03906f8b310313 (git) Affected: 8b796475fd7882663a870456466a4fb315cc1bd6 , < 3dee9d0c198faeb95d052c1b94c2958751a28512 (git) Affected: 8b796475fd7882663a870456466a4fb315cc1bd6 , < 899ee91156e57784090c5565e4f31bd7dbffbc5a (git) Affected: d0c38a914b0c4c21d553da801003d36979016726 (git) Affected: 2ec2dd7d51a9320151f275ddbb2b53260fb32ca1 (git) Affected: c19cc520b3d69904e9518d401ad0df7f4702aca0 (git) Affected: 5.10.117 , < 5.10.260 (semver) Affected: 5.15.41 , < 5.15.211 (semver) Affected: 4.19.244 , < 4.20 (semver) Affected: 5.4.195 , < 5.5 (semver) Affected: 5.17.9 , < 5.18 (semver) |
|
| Linux | Linux |
Affected:
5.18
Unaffected: 0 , < 5.18 (semver) Unaffected: 5.10.260 , ≤ 5.10.* (semver) Unaffected: 5.15.211 , ≤ 5.15.* (semver) Unaffected: 6.1.177 , ≤ 6.1.* (semver) Unaffected: 6.6.144 , ≤ 6.6.* (semver) Unaffected: 6.12.94 , ≤ 6.12.* (semver) Unaffected: 6.18.36 , ≤ 6.18.* (semver) Unaffected: 7.0.13 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix) |
|
| Red Hat | NVIDIA for RHEL 10 |
Unaffected:
0:6.12.0-212.11.el10nv , < *
(rpm)
Unaffected: 0:6.12.0-231.13.el10nv , < * (rpm) cpe:/a:redhat:enterprise_linux_nvidia:10::el10 |
|
| Red Hat | Red Hat Enterprise Linux 10 |
Unaffected:
0:6.12.0-211.26.1.el10_2 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:10.2 |
|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10.2 |
|
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support |
Unaffected:
0:6.12.0-55.82.1.el10_0 , < *
(rpm)
cpe:/o:redhat:enterprise_linux_eus:10.0 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
0:4.18.0-553.136.1.rt7.477.el8_10 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:8::nfv |
|
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
0:4.18.0-553.136.1.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:
0:4.18.0-305.195.1.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:
0:4.18.0-305.195.1.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:
0:4.18.0-372.197.1.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:
0:4.18.0-372.197.1.el8_6 , < *
(rpm)
cpe:/o:redhat:rhel_eus_long_life:8.6 |
|
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service |
Unaffected:
0:4.18.0-477.148.1.el8_8 , < *
(rpm)
cpe:/o:redhat:rhel_tus:8.8 |
|
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions |
Unaffected:
0:4.18.0-477.148.1.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:
0:5.14.0-687.17.1.el9_8 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9 cpe:/o:redhat:enterprise_linux:9 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9 |
|
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions |
Unaffected:
0:5.14.0-284.177.1.el9_2 , < *
(rpm)
cpe:/a:redhat:rhel_e4s:9.2 |
|
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions |
Unaffected:
0:5.14.0-284.177.1.rt14.462.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 Update Services for SAP Solutions |
Unaffected:
0:5.14.0-427.134.1.el9_4 , < *
(rpm)
cpe:/a:redhat:rhel_e4s:9.4 |
|
| Red Hat | Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions |
cpe:/o:redhat:rhel_e4s:9.4 |
|
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support |
Unaffected:
0:5.14.0-570.123.1.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:
412.86.202606251120-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.12::el8 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.13 |
Unaffected:
413.92.202607141229-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.13::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.14 |
Unaffected:
414.92.202606231112-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.14::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.15 |
Unaffected:
415.92.202606200237-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.15::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.16 |
Unaffected:
416.94.202606230218-0 , < *
(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:
418.94.202606221349-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.18::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.19 |
Unaffected:
4.19.9.6.202606241344-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.19::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.20 |
Unaffected:
4.20.9.6.202606241928-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.20::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.21 |
Unaffected:
4.21.9.6.202606241859-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.21::el9 |
|
| Red Hat | Red Hat OpenShift Container Platform 4.22 |
Unaffected:
4.22.9.8.202606230855-0 , < *
(rpm)
cpe:/a:redhat:openshift:4.22::el9 |
|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10 |
|
| 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 |
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CVE-2026-52908 (GCVE-0-2026-52908)
Vulnerability from cvelistv5 – Published: 2026-06-19 14:00 – Updated: 2026-08-05 12:31
VLAI
EPSS
VEX
Title
RDMA: During rereg_mr ensure that REREG_ACCESS is compatible
Summary
In the Linux kernel, the following vulnerability has been resolved:
RDMA: During rereg_mr ensure that REREG_ACCESS is compatible
If IB_MR_REREG_ACCESS changes from RO to RW then the umem has to be
re-evaluated to ensure it is properly pinned as RW. Since the umem is
hidden inside each driver's mr struct add a ib_umem_check_rereg() function
that each driver has to call before processing IB_MR_REREG_ACCESS.
mlx4 has to retain its duplicate ib_access_writable check because it
implements IB_MR_REREG_ACCESS | IB_MR_REREG_TRANS by changing both items
in place sequentially while the MR is live, so it will continue to not
support this combination.
Severity
7.8 (High)
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
b40656aa7d559adc1fe689396dc58b92a9a27286 , < 09dc18894148381d3bfc550083b1236043870dce
(git)
Affected: b40656aa7d559adc1fe689396dc58b92a9a27286 , < eba5df21eda0fe7418efbea2f799f8ea1b8ca94c (git) Affected: b40656aa7d559adc1fe689396dc58b92a9a27286 , < 2904e985a2917b5dac65df82733065e78a65fc9d (git) Affected: b40656aa7d559adc1fe689396dc58b92a9a27286 , < 50334a05a950840b39a1ce3d2a173b4183db9b3e (git) Affected: b40656aa7d559adc1fe689396dc58b92a9a27286 , < badad6fad60def1b9805559dd81dbab3d97b82aa (git) |
|
| Linux | Linux |
Affected:
6.2
Unaffected: 0 , < 6.2 (semver) Unaffected: 6.6.143 , ≤ 6.6.* (semver) Unaffected: 6.12.94 , ≤ 6.12.* (semver) Unaffected: 6.18.36 , ≤ 6.18.* (semver) Unaffected: 7.0.13 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix) |
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA: During rereg_mr ensure that REREG_ACCESS is compatible\n\nIf IB_MR_REREG_ACCESS changes from RO to RW then the umem has to be\nre-evaluated to ensure it is properly pinned as RW. Since the umem is\nhidden inside each driver\u0027s mr struct add a ib_umem_check_rereg() function\nthat each driver has to call before processing IB_MR_REREG_ACCESS.\n\nmlx4 has to retain its duplicate ib_access_writable check because it\nimplements IB_MR_REREG_ACCESS | IB_MR_REREG_TRANS by changing both items\nin place sequentially while the MR is live, so it will continue to not\nsupport this combination."
}
],
"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"
},
"scenarios": [
{
"lang": "en",
"value": "AV:L - The vulnerable path is reached through local RDMA uverbs write/ioctl operations on /dev/infiniband/uverbs*, not by unauthenticated network packets. Remote RDMA traffic may perform the final write only after a local process has created and reregistered the MR.\nAC:L - The trigger is a deterministic sequence: register an MR read-only, reregister it with writable access without changing translation, then use the writable MR. There is no race or attacker-uncontrolled timing requirement.\nPR:L - A basic local user can open the uverbs device when an RDMA device is exposed and create the required context, PD, and MR; the path has no CAP_SYS_ADMIN or CAP_NET_ADMIN gate. Resource limits may constrain size but do not make the attack require administrator privileges.\nUI:N - No victim action is required after the attacker has local execution and access to the RDMA uverbs device. The attacker drives the registration, reregistration, and write operations directly.\nS:U - The impact remains within the kernel/host security authority and is a local privilege escalation or host integrity violation. It does not inherently cross a VM, hypervisor, or IOMMU security boundary.\nC:H - The stale read-only pin can be converted into a writable RDMA mapping, enabling modification of read-only/COW or page-cache backed memory in a Dirty-COW-like way. A plausible privileged-code-execution path through corrupted executable page cache yields full confidentiality impact.\nI:H - The bug creates an unauthorized write primitive to pages that were not pinned with FOLL_WRITE and should not be writable. This can corrupt read-only user mappings or shared page-cache contents, making high integrity impact defensible.\nA:H - The same unauthorized write primitive can corrupt executable/library page cache or process memory and crash privileged services or destabilize the system. With plausible root code execution, high availability impact is also defensible."
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-08-05T12:31:31.552Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/09dc18894148381d3bfc550083b1236043870dce"
},
{
"url": "https://git.kernel.org/stable/c/eba5df21eda0fe7418efbea2f799f8ea1b8ca94c"
},
{
"url": "https://git.kernel.org/stable/c/2904e985a2917b5dac65df82733065e78a65fc9d"
},
{
"url": "https://git.kernel.org/stable/c/50334a05a950840b39a1ce3d2a173b4183db9b3e"
},
{
"url": "https://git.kernel.org/stable/c/badad6fad60def1b9805559dd81dbab3d97b82aa"
}
],
"title": "RDMA: During rereg_mr ensure that REREG_ACCESS is compatible",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-52908",
"datePublished": "2026-06-19T14:00:35.971Z",
"dateReserved": "2026-06-09T07:44:35.366Z",
"dateUpdated": "2026-08-05T12:31:31.552Z",
"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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