Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 56974a6fcfef69ee0825bd66ed13e92070ac5224 before 68538ec34fcb4194c7961dc4eca6f5537fec8067; affected 56974a6fcfef69ee0825bd66ed13e92070ac5224 before 5121b7283f1c46e4c06b88b1dda7b064429d77de; affected 56974a6fcfef69ee0825bd66ed13e92070ac5224 before c11b7c3280d000376e27ebfed17ec7046699eab4; affected 56974a6fcfef69ee0825bd66ed13e92070ac5224 before 0dc19bca22606f7a61d5988408f74e3ae0ef3486; affected 56974a6fcfef69ee0825bd66ed13e92070ac5224 before 3852eb9a0392eb435c03dcb47d581bcfe6a9a95b; affected 56974a6fcfef69ee0825bd66ed13e92070ac5224 before ccb66a3c6c8f51b3ed1bc003b70bb9ff99e8d835; affected 56974a6fcfef69ee0825bd66ed13e92070ac5224 before 8a0ededbfcff74598f82f1d4b8ef9db28878b317; affected 56974a6fcfef69ee0825bd66ed13e92070ac5224 before 00b67657535dfea56e84d11492f5c0f61d0af297 |
| Linux / Linux | affected 4.17; unaffected 0 before 4.17; unaffected 5.10.252 through 5.10.*; unaffected 5.15.202 through 5.15.*; unaffected 6.1.165 through 6.1.*; unaffected 6.6.128 through 6.6.*; unaffected 6.12.75 through 6.12.*; unaffected 6.18.14 through 6.18.*; unaffected 6.19.4 through 6.19.*; unaffected 7.0 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/68538ec34fcb4194c7961dc4eca6f5537fec8067
- https://git.kernel.org/stable/c/5121b7283f1c46e4c06b88b1dda7b064429d77de
- https://git.kernel.org/stable/c/c11b7c3280d000376e27ebfed17ec7046699eab4
- https://git.kernel.org/stable/c/0dc19bca22606f7a61d5988408f74e3ae0ef3486
- https://git.kernel.org/stable/c/3852eb9a0392eb435c03dcb47d581bcfe6a9a95b
- https://git.kernel.org/stable/c/ccb66a3c6c8f51b3ed1bc003b70bb9ff99e8d835
- https://git.kernel.org/stable/c/8a0ededbfcff74598f82f1d4b8ef9db28878b317
- https://git.kernel.org/stable/c/00b67657535dfea56e84d11492f5c0f61d0af297