CVE - CVE-2022-49411

CVE-ID
CVE-2022-49411	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
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
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/075a53b78b815301f8d3dd1ee2cd99554e34f0dd URL:https://git.kernel.org/stable/c/075a53b78b815301f8d3dd1ee2cd99554e34f0dd MISC:https://git.kernel.org/stable/c/51f724bffa3403a5236597e6b75df7329c1ec6e9 URL:https://git.kernel.org/stable/c/51f724bffa3403a5236597e6b75df7329c1ec6e9 MISC:https://git.kernel.org/stable/c/6ee0868b0c3ccead5907685fcdcdd0c08dfe4b0b URL:https://git.kernel.org/stable/c/6ee0868b0c3ccead5907685fcdcdd0c08dfe4b0b MISC:https://git.kernel.org/stable/c/7781c38552e6cc54ed8e9040279561340516b881 URL:https://git.kernel.org/stable/c/7781c38552e6cc54ed8e9040279561340516b881 MISC:https://git.kernel.org/stable/c/97bd6c56bdcb41079e488e31df56809e3b2ce628 URL:https://git.kernel.org/stable/c/97bd6c56bdcb41079e488e31df56809e3b2ce628 MISC:https://git.kernel.org/stable/c/ccddf8cd411c1800863ed357064e56ceffd356bb URL:https://git.kernel.org/stable/c/ccddf8cd411c1800863ed357064e56ceffd356bb
Assigning CNA
kernel.org
Date Record Created
20250226	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20250226)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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