Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: smb: Log an error when close_all_cached_dirs fails Under low-memory conditions, close_all_cached_dirs() can't move the dentries to a separate list to dput() them once the locks are dropped. This will result in a "Dentry still in use" error, so add an error message that makes it clear this is what happened: [ 495.281119] CIFS: VFS: \\otters.example.com\share Out of memory while dropping dentries [ 495.281595] ------------[ cut here ]------------ [ 495.281887] BUG: Dentry ffff888115531138{i=78,n=/} still in use (2) [unmount of cifs cifs] [ 495.282391] WARNING: CPU: 1 PID: 2329 at fs/dcache.c:1536 umount_check+0xc8/0xf0 Also, bail out of looping through all tcons as soon as a single allocation fails, since we're already in trouble, and kmalloc() attempts for subseqeuent tcons are likely to fail just like the first one did.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 73934e535cffbda1490fa97d82690a0f9aa73e94 before b8ced2b9a23a1a2c1e0ed8d0d02512e51bdf38da; affected 548812afd96982a76a93ba76c0582ea670c40d9e before 43f26094d6702e494e800532c3f1606e7a68eb30; affected 3fa640d035e5ae526769615c35cb9ed4be6e3662 before 4479db143390bdcadc1561292aab579cdfa9f6c6; affected 3fa640d035e5ae526769615c35cb9ed4be6e3662 before a2182743a8b4969481f64aec4908ff162e8a206c; affected ff4528bbc82d0d90073751f7b49e7b9e9c7e5638; affected 6.6.64 before 6.6.95; affected 6.12.2 before 6.12.35; affected 6.11.11 before 6.12 |
| Linux / Linux | affected 6.13; unaffected 0 before 6.13; unaffected 6.6.95 through 6.6.*; unaffected 6.12.35 through 6.12.*; unaffected 6.15.4 through 6.15.*; unaffected 6.16 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/b8ced2b9a23a1a2c1e0ed8d0d02512e51bdf38da
- https://git.kernel.org/stable/c/43f26094d6702e494e800532c3f1606e7a68eb30
- https://git.kernel.org/stable/c/4479db143390bdcadc1561292aab579cdfa9f6c6
- https://git.kernel.org/stable/c/a2182743a8b4969481f64aec4908ff162e8a206c
ADP enrichment
No English description supplied.
No references supplied.