CVE-2022-49411
Linux Kernel - BFQ Cgroup Use After Free
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.
INFO
Published Date :
Feb. 26, 2025, 7:01 a.m.
Last Modified :
March 25, 2025, 1:42 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2022-49411.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2022-49411 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-49411 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Mar. 25, 2025
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.121 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.46 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 5.17.14 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.18 up to (excluding) 5.18.3 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.12 up to (excluding) 5.4.198 Added Reference Type kernel.org: https://git.kernel.org/stable/c/075a53b78b815301f8d3dd1ee2cd99554e34f0dd Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/51f724bffa3403a5236597e6b75df7329c1ec6e9 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/6ee0868b0c3ccead5907685fcdcdd0c08dfe4b0b Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/7781c38552e6cc54ed8e9040279561340516b881 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/97bd6c56bdcb41079e488e31df56809e3b2ce628 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/ccddf8cd411c1800863ed357064e56ceffd356bb Types: Patch -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Mar. 05, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-416 -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Feb. 26, 2025
Action Type Old Value New Value Added 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. Added Reference https://git.kernel.org/stable/c/075a53b78b815301f8d3dd1ee2cd99554e34f0dd Added Reference https://git.kernel.org/stable/c/51f724bffa3403a5236597e6b75df7329c1ec6e9 Added Reference https://git.kernel.org/stable/c/6ee0868b0c3ccead5907685fcdcdd0c08dfe4b0b Added Reference https://git.kernel.org/stable/c/7781c38552e6cc54ed8e9040279561340516b881 Added Reference https://git.kernel.org/stable/c/97bd6c56bdcb41079e488e31df56809e3b2ce628 Added Reference https://git.kernel.org/stable/c/ccddf8cd411c1800863ed357064e56ceffd356bb
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-49411 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2022-49411
weaknesses.