CVE Published: 04/03/2024 |
CVE Updated: 04/11/2024 |
CVE Year: 2021 Source: Linux |
Vendor: Linux |
Product: Linux Status : PUBLISHED
CVE-2021-47088 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\'.