Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: af_unix: Set gc_in_progress to true in unix_gc(). Igor Ushakov reported that unix_gc() could run with gc_in_progress being false if the work is scheduled while running: Thread 1 Thread 2 Thread 3 -------- -------- -------- unix_schedule_gc() unix_schedule_gc() `- if (!gc_in_progress) `- if (!gc_in_progress) |- gc_in_progress = true | `- queue_work() | unix_gc() <----------------/ | | |- gc_in_progress = true ... `- queue_work() | | `- gc_in_progress = false | | unix_gc() <---------------------------------------------' | ... /* gc_in_progress == false */ | `- gc_in_progress = false unix_peek_fpl() relies on gc_in_progress not to confuse GC by MSG_PEEK. Let's set gc_in_progress to true in unix_gc().
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected ceb8bd6c69c1680fd9b45e7f16d7170c9c7513a5 before 20aa894d475bd8086b25c1113ec4ca70f70c7a98; affected 328840c93bd6a4871dd10908d01b41eab83eb8e2 before 82c17e13d404f686e164590483fd6c1abaa675d0; affected 8b90a9f819dc2a06baae4ec1a64d875e53b824ec before 591f1ac217428a6d2b32a8ac14aac0fab44f155a; affected 8b90a9f819dc2a06baae4ec1a64d875e53b824ec before 0cfa78c050662784fc8e3ab26dbfd1dc632b2082; affected 8b90a9f819dc2a06baae4ec1a64d875e53b824ec before d82ba05263c69fa2437fe93e4e561cc40f4c03af; affected 6.1.141 before 6.1.183; affected 6.6.93 before 6.6.144 |
| Linux / Linux | affected 6.9; unaffected 0 before 6.9; unaffected 6.1.183 through 6.1.*; unaffected 6.6.144 through 6.6.*; unaffected 6.12.95 through 6.12.*; unaffected 6.18.38 through 6.18.*; unaffected 7.1 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/20aa894d475bd8086b25c1113ec4ca70f70c7a98
- https://git.kernel.org/stable/c/82c17e13d404f686e164590483fd6c1abaa675d0
- https://git.kernel.org/stable/c/591f1ac217428a6d2b32a8ac14aac0fab44f155a
- https://git.kernel.org/stable/c/0cfa78c050662784fc8e3ab26dbfd1dc632b2082
- https://git.kernel.org/stable/c/d82ba05263c69fa2437fe93e4e561cc40f4c03af
ADP enrichment
No English description supplied.
No references supplied.