In the Linux kernel, the following vulnerability has been...
High severity
Unreviewed
Published
Jun 24, 2024
to the GitHub Advisory Database
•
Updated Jul 3, 2024
Description
Published by the National Vulnerability Database
Jun 24, 2024
Published to the GitHub Advisory Database
Jun 24, 2024
Last updated
Jul 3, 2024
In the Linux kernel, the following vulnerability has been resolved:
blk-cgroup: fix list corruption from reorder of WRITE ->lqueued
__blkcg_rstat_flush() can be run anytime, especially when blk_cgroup_bio_start
is being executed.
If WRITE of
->lqueued
is re-ordered with READ of 'bisc->lnode.next' inthe loop of __blkcg_rstat_flush(),
next_bisc
can be assigned with onestat instance being added in blk_cgroup_bio_start(), then the local
list in __blkcg_rstat_flush() could be corrupted.
Fix the issue by adding one barrier.
References