CVE-2026-45848apparmor: fix NULL sock in aa_sock_file_perm
- 5.5MediumCVSS base score
- 0.16%Exploitation in 30 daysEPSS · top 95% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: apparmor: fix NULL sock in aa_sock_file_perm Deal with the potential that sock and sock-sk can be NULL during socket setup or teardown. This could lead to an oops. The fix for NULL pointer dereference in __unix_needs_revalidation shows this is at least possible for af_unix sockets. While the fix for af_unix sockets applies for newer mediation this is still the fall back path for older af_unix mediation and other sockets, so ensure it is covered.
Timeline
ID reserved
By Linux
- 14 days later
· 14 days later
Published
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.16% · top 95% of all CVEs (14 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected 56974a6fcfef69ee0825bd66ed13e92070ac5224 – < 68538ec34fcb4194c7961dc4eca6f5537fec8067
- affected 56974a6fcfef69ee0825bd66ed13e92070ac5224 – < 5121b7283f1c46e4c06b88b1dda7b064429d77de
- affected 56974a6fcfef69ee0825bd66ed13e92070ac5224 – < c11b7c3280d000376e27ebfed17ec7046699eab4
- affected 56974a6fcfef69ee0825bd66ed13e92070ac5224 – < 0dc19bca22606f7a61d5988408f74e3ae0ef3486
- affected 56974a6fcfef69ee0825bd66ed13e92070ac5224 – < 3852eb9a0392eb435c03dcb47d581bcfe6a9a95b
- affected 56974a6fcfef69ee0825bd66ed13e92070ac5224 – < ccb66a3c6c8f51b3ed1bc003b70bb9ff99e8d835
- affected 56974a6fcfef69ee0825bd66ed13e92070ac5224 – < 8a0ededbfcff74598f82f1d4b8ef9db28878b317
- affected 56974a6fcfef69ee0825bd66ed13e92070ac5224 – < 00b67657535dfea56e84d11492f5c0f61d0af297
- affected 4.17
- unaffected < 4.17
- unaffected 5.10.252 – ≤ 5.10.*
- unaffected 5.15.202 – ≤ 5.15.*
- unaffected 6.1.165 – ≤ 6.1.*
- unaffected 6.6.128 – ≤ 6.6.*
- unaffected 6.12.75 – ≤ 6.12.*
- unaffected 6.18.14 – ≤ 6.18.*
- unaffected 6.19.4 – ≤ 6.19.*
- unaffected 7.0 – ≤ *
References
References8
- https://git.kernel.org/stable/c/68538ec34fcb4194c7961dc4eca6f5537fec8067 (opens in a new tab)
- https://git.kernel.org/stable/c/5121b7283f1c46e4c06b88b1dda7b064429d77de (opens in a new tab)
- https://git.kernel.org/stable/c/c11b7c3280d000376e27ebfed17ec7046699eab4 (opens in a new tab)
- https://git.kernel.org/stable/c/0dc19bca22606f7a61d5988408f74e3ae0ef3486 (opens in a new tab)
- https://git.kernel.org/stable/c/3852eb9a0392eb435c03dcb47d581bcfe6a9a95b (opens in a new tab)
- https://git.kernel.org/stable/c/ccb66a3c6c8f51b3ed1bc003b70bb9ff99e8d835 (opens in a new tab)
- https://git.kernel.org/stable/c/8a0ededbfcff74598f82f1d4b8ef9db28878b317 (opens in a new tab)
- https://git.kernel.org/stable/c/00b67657535dfea56e84d11492f5c0f61d0af297 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-32314 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-45848)Record last updated .