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’ in the loop of __blkcg_rstat_flush(), next_bisc
can be assigned with one stat 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.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 12 | all | linux | < 6.1.76-1 | linux_6.1.76-1_all.deb |
Debian | 11 | all | linux | < 5.10.209-2 | linux_5.10.209-2_all.deb |
Debian | 10 | all | linux | < 4.19.249-2 | linux_4.19.249-2_all.deb |
Debian | 999 | all | linux | < 6.9.7-1 | linux_6.9.7-1_all.deb |
Debian | 13 | all | linux | <= 6.8.12-1 | linux_6.8.12-1_all.deb |