Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: mm/damon/dbgfs: protect targets destructions with kdamond_lock DAMON debugfs interface iterates current monitoring targets in 'dbgfs_target_ids_read()' while holding the corresponding 'kdamond_lock'. However, it also destructs the monitoring targets in 'dbgfs_before_terminate()' without holding the lock. This can result in a use_after_free bug. This commit avoids the race by protecting the destruction with the corresponding 'kdamond_lock'.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 4bc05954d0076655cfaf6f0135585bdc20cd6b11 before 330c6117a82c16a9a365a51cec5c9ab30b13245c; affected 4bc05954d0076655cfaf6f0135585bdc20cd6b11 before 34796417964b8d0aef45a99cf6c2d20cebe33733 |
| Linux / Linux | affected 5.15; unaffected 0 before 5.15; unaffected 5.15.12 through 5.15.*; unaffected 5.16 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/330c6117a82c16a9a365a51cec5c9ab30b13245c
- https://git.kernel.org/stable/c/34796417964b8d0aef45a99cf6c2d20cebe33733
ADP enrichment
No English description supplied.
No English description supplied.
No references supplied.