CVE-2022-49411 (GCVE-0-2022-49411)
Vulnerability from cvelistv5
Published
2025-02-26 02:12
Modified
2026-08-05 08:55
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: bfq: Make sure bfqg for which we are queueing requests is online Bios queued into BFQ IO scheduler can be associated with a cgroup that was already offlined. This may then cause insertion of this bfq_group into a service tree. But this bfq_group will get freed as soon as last bio associated with it is completed leading to use after free issues for service tree users. Fix the problem by making sure we always operate on online bfq_group. If the bfq_group associated with the bio is not online, we pick the first online parent.
References
Impacted products
Vendor Product Version
Linux Linux Version: e21b7a0b988772e82e7147e1c659a5afe2ae003c
Version: e21b7a0b988772e82e7147e1c659a5afe2ae003c
Version: e21b7a0b988772e82e7147e1c659a5afe2ae003c
Version: e21b7a0b988772e82e7147e1c659a5afe2ae003c
Version: e21b7a0b988772e82e7147e1c659a5afe2ae003c
Version: e21b7a0b988772e82e7147e1c659a5afe2ae003c
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