CVE-2022-49411

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.

The following products are affected by CVE-2022-49411 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2022-49411.

URL	Resource
https://git.kernel.org/stable/c/075a53b78b815301f8d3dd1ee2cd99554e34f0dd
https://git.kernel.org/stable/c/51f724bffa3403a5236597e6b75df7329c1ec6e9
https://git.kernel.org/stable/c/6ee0868b0c3ccead5907685fcdcdd0c08dfe4b0b
https://git.kernel.org/stable/c/7781c38552e6cc54ed8e9040279561340516b881
https://git.kernel.org/stable/c/97bd6c56bdcb41079e488e31df56809e3b2ce628
https://git.kernel.org/stable/c/ccddf8cd411c1800863ed357064e56ceffd356bb
https://lore.kernel.org/linux-cve-announce/2025022652-CVE-2022-49411-63ad@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2022-49411
https://www.cve.org/CVERecord?id=CVE-2022-49411