VULNERABILITY

Debian: CVE-2022-49413: linux -- security update

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Debian: CVE-2022-49413: linux -- security update

Severity
6
CVSS
(AV:L/AC:L/Au:S/C:N/I:C/A:C)
Published
02/27/2025
Created
03/10/2025
Added
02/27/2025
Modified
03/06/2025

Description

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().

Solution(s)

  • debian-upgrade-linux

References

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