cve-2021-47088
Vulnerability from cvelistv5
Published
2024-03-04 18:10
Modified
2024-12-19 07:34
Severity ?
Summary
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'.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/330c6117a82c16a9a365a51cec5c9ab30b13245c
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/34796417964b8d0aef45a99cf6c2d20cebe33733
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/330c6117a82c16a9a365a51cec5c9ab30b13245c
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/34796417964b8d0aef45a99cf6c2d20cebe33733
Impacted products
Vendor Product Version
Linux Linux Version: 5.15
Show details on NVD website

To clipboard 

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