CyberRota Analysis
This is a high severity vulnerability with a CVSS score of 7.0. It affects Linux.
CVE
CVE-2021-47088
Severity
HIGH
CVSS
7
EPSS
0.21%
Linux
Original NVD 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'.
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