5.5

CVE-2026-45848

apparmor: fix NULL sock in aa_sock_file_perm

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
LinuxLinux Kernel Version >= 4.17 < 5.10.252
LinuxLinux Kernel Version >= 5.11 < 5.15.202
LinuxLinux Kernel Version >= 5.16 < 6.1.165
LinuxLinux Kernel Version >= 6.2 < 6.6.128
LinuxLinux Kernel Version >= 6.7 < 6.12.75
LinuxLinux Kernel Version >= 6.13 < 6.18.14
LinuxLinux Kernel Version >= 6.19 < 6.19.4
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.16% 0.056
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

https://git.kernel.org/stable/c/68538ec34fcb4194c7961dc4eca6f5537fec8067
Patch
https://git.kernel.org/stable/c/5121b7283f1c46e4c06b88b1dda7b064429d77de
Patch
https://git.kernel.org/stable/c/c11b7c3280d000376e27ebfed17ec7046699eab4
Patch
https://git.kernel.org/stable/c/0dc19bca22606f7a61d5988408f74e3ae0ef3486
Patch
https://git.kernel.org/stable/c/3852eb9a0392eb435c03dcb47d581bcfe6a9a95b
Patch
https://git.kernel.org/stable/c/ccb66a3c6c8f51b3ed1bc003b70bb9ff99e8d835
Patch
https://git.kernel.org/stable/c/8a0ededbfcff74598f82f1d4b8ef9db28878b317
Patch
https://git.kernel.org/stable/c/00b67657535dfea56e84d11492f5c0f61d0af297
Patch