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CVE-2026-46150

fanotify: fix false positive on permission events

HIGH
7.1
CVSS Score
Published: May 28, 2026 at 09:36 AM UTC
Updated: October 19, 2026 at 08:18 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.1
Exploit prediction
EPSS 0.1%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: fanotify: fix false positive on permission events fsnotify_get_mark_safe() may return false for a mark on an unrelated group, which results in bypassing the permission check. Fix by skipping over detached marks that are not in the current group.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
4.12 ≤ v < 5.10.2585.11 ≤ v < 5.15.2095.16 ≤ v < 6.1.1756.13 ≤ v < 6.18.306.19 ≤ v < 7.0.76.2 ≤ v < 6.6.1406.7 ≤ v < 6.12.887.17.1 rc1abc77577a669f424c5d0c185b9994f2621c52aa4
Vendor states this is fixed in 04bb66be92f48ed13c3faf1139d892df228789bc (fixed)
Vendor states this is fixed in 4a7611ad653785fcdea5ff5f4441e2b7d05b7f11 (fixed)
Vendor states this is fixed in 7746e3bd4cc19b5092e00d32d676e329bfcb6900 (fixed)
Vendor states this is fixed in 7baa02b0ae9d17ec5f08836d8ea88ce1927d0678 (fixed)
Vendor states this is fixed in 895ebbedf88318607c24acc0f591c74b165e1d0a (fixed)
Vendor states this is fixed in a24765332e129c1916d5a6615418b75599b8fcdc (fixed)
Vendor states this is fixed in b7b24b28c8cd55844cab908f4f39dded638d5538 (fixed)
Vendor states this is fixed in f130790f1acc8399f32652846c875a251efd040f (fixed)
Vendor states this is fixed in 4.12 (unaffected)
Vendor states this is fixed in 5.10.258 (unaffected)
Vendor states this is fixed in 5.15.209 (unaffected)
Vendor states this is fixed in 6.1.175 (unaffected)
Vendor states this is fixed in 6.12.88 (unaffected)
Vendor states this is fixed in 6.18.30 (unaffected)
Vendor states this is fixed in 6.6.140 (unaffected)
Vendor states this is fixed in 7.0.7 (unaffected)
Vendor states this is fixed in 7.1 (unaffected)

References (9)

Patch
Source: cverecord
https://git.kernel.org/stable/c/895ebbedf88318607c24acc0f591c74b165e1d0a
Patch
Source: cverecord
https://git.kernel.org/stable/c/f130790f1acc8399f32652846c875a251efd040f
Patch
Source: cverecord
https://git.kernel.org/stable/c/7baa02b0ae9d17ec5f08836d8ea88ce1927d0678
Patch
Source: cverecord
https://git.kernel.org/stable/c/b7b24b28c8cd55844cab908f4f39dded638d5538
Patch
Source: cverecord
https://git.kernel.org/stable/c/7746e3bd4cc19b5092e00d32d676e329bfcb6900
Patch
Source: cverecord
https://git.kernel.org/stable/c/a24765332e129c1916d5a6615418b75599b8fcdc
Patch
Source: cverecord
https://git.kernel.org/stable/c/4a7611ad653785fcdea5ff5f4441e2b7d05b7f11
Patch
Source: cverecord
https://git.kernel.org/stable/c/04bb66be92f48ed13c3faf1139d892df228789bc

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.1HIGHLinux
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfoCWE-863

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