CVE-2026-46150
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.14%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public 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.
- CVSS 3.1
- 7.1 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
- EPSS
- 0.14% probability · 4th percentile
- CISA KEV
- Not listed
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/04bb66be92f48ed13c3faf1139d892df228789bcPatch
- https://git.kernel.org/stable/c/4a7611ad653785fcdea5ff5f4441e2b7d05b7f11Patch
- https://git.kernel.org/stable/c/7746e3bd4cc19b5092e00d32d676e329bfcb6900Patch
- https://git.kernel.org/stable/c/7baa02b0ae9d17ec5f08836d8ea88ce1927d0678Patch
- https://git.kernel.org/stable/c/895ebbedf88318607c24acc0f591c74b165e1d0aPatch
- https://git.kernel.org/stable/c/a24765332e129c1916d5a6615418b75599b8fcdcPatch
- https://git.kernel.org/stable/c/b7b24b28c8cd55844cab908f4f39dded638d5538Patch
- https://git.kernel.org/stable/c/f130790f1acc8399f32652846c875a251efd040fPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.