CVE-2021-47088
Published: Mar 4, 2024
Modified: May 11, 2026
Description
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'.
| Vendor | Product | Versions |
|---|---|---|
Linux | Linux | affected 4bc05954d0076655cfaf6f0135585bdc20cd6b11 - < 330c6117a82c16a9a365a51cec5c9ab30b13245caffected 4bc05954d0076655cfaf6f0135585bdc20cd6b11 - < 34796417964b8d0aef45a99cf6c2d20cebe33733 |
Linux | Linux | affected 5.15unaffected 0 - < 5.15unaffected 5.15.12 - <= 5.15.*unaffected 5.16 - <= * |
Security Training
Train your team to recognize and prevent security threats with our comprehensive security awareness program.
Start TrainingVulnerability Scanning
Discover vulnerabilities in your applications and infrastructure before attackers do.
Scan Now