CVSS 3.1
7.8 highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HCVE-2022-49413
High (7.8) in linux linux kernel. EPSS 0.3% chance of exploitation in the next 30 days.
In the Linux kernel, the following vulnerability has been resolved:
bfq: Update cgroup information before merging bio
When the process is migrated to a different cgroup (or in case of
writeback just starts submitting bios associated with a different
cgroup) bfq_merge_bio() can operate with stale cgroup information in
bic. Thus the bio can be merged to a request from a different cgroup or
it can result in merging of bfqqs for different cgroups or bfqqs of
already dead cgroups and causing possible use-after-free issues. Fix the
problem by updating cgroup information in bfq_merge_bio().
Severity
- EPSS
- 0.3% chance of exploitation in the next 30 days; higher than 21% of CVEs (scores of 2026-10-31)
- CWE
- CWE-416
- Published
- Modified
- Record from
- the NVD, synced
Affected
- linux:linux_kernel
References
- https://git.kernel.org/stable/c/2a1077f17169a6059992a0bbdb330e0abad1e6d9
- https://git.kernel.org/stable/c/b06691af08b41dfd81052a3362514d9827b44bb1
- https://git.kernel.org/stable/c/d9165200c5627a2cf4408eefabdf0058bdf95e1a
- https://git.kernel.org/stable/c/da9f3025d595956410ceaab2bea01980d7775948
- https://git.kernel.org/stable/c/e8821f45612f2e6d9adb9c6ba0fb4184f57692aa