Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: ALSA: compress: Fix task creation error unwind snd_compr_task_new() allocates the driver task before validating the returned DMA buffers and reserving file descriptors. When either of those later steps fails, the core frees its task wrapper and DMA-buffer references without calling the driver's task_free() callback. Any driver resources allocated by task_create() are therefore leaked. The dual-fd allocation path also jumps to cleanup without storing the negative get_unused_fd_flags() result in retval. Since retval still contains the successful task_create() return value, TASK_CREATE can incorrectly report success although the task was discarded. Preserve the fd allocation errors and call task_free() when failure occurs after a successful task_create() callback.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 04177158cf98a79744937893b100020d77e6f9ac before b27a75d42044d9d4709095617730b91b1c4af423; affected 04177158cf98a79744937893b100020d77e6f9ac before 426a9947a38d272d0e19c031658da68e31128667; affected 04177158cf98a79744937893b100020d77e6f9ac before 4a60127debb9e370d6c0e22a307326b624a141f3 |
| Linux / Linux | affected 6.13; unaffected 0 before 6.13; unaffected 6.18.39 through 6.18.*; unaffected 7.1.4 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/b27a75d42044d9d4709095617730b91b1c4af423
- https://git.kernel.org/stable/c/426a9947a38d272d0e19c031658da68e31128667
- https://git.kernel.org/stable/c/4a60127debb9e370d6c0e22a307326b624a141f3
ADP enrichment
No English description supplied.
No references supplied.