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CVE-2022-49179

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: block, bfq: don't move oom_bfqq Our test report a UAF: [ 2073.019181] ========================================================…

Published Feb 26, 2025CWE-416EPSS 0.28%

Overview

CVE-2022-49179 is a high-severity vulnerability. It was published on February 26, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

block, bfq: don't move oom_bfqq

Our test report a UAF:

[ 2073.019181] ==================================================================

[ 2073.019188] BUG: KASAN: use-after-free in __bfq_put_async_bfqq+0xa0/0x168

[ 2073.019191] Write of size 8 at addr ffff8000ccf64128 by task rmmod/72584

[ 2073.019192]

[ 2073.019196] CPU: 0 PID: 72584 Comm: rmmod Kdump: loaded Not tainted 4.19.90-yk #5

[ 2073.019198] Hardware name: QEMU KVM Virtual Machine, BIOS 0.0.0 02/06/2015

[ 2073.019200] Call trace:

[ 2073.019203] dump_backtrace+0x0/0x310

[ 2073.019206] show_stack+0x28/0x38

[ 2073.019210] dump_stack+0xec/0x15c

[ 2073.019216] print_address_description+0x68/0x2d0

[ 2073.019220] kasan_report+0x238/0x2f0

[ 2073.019224] __asan_store8+0x88/0xb0

[ 2073.019229] __bfq_put_async_bfqq+0xa0/0x168

[ 2073.019233] bfq_put_async_queues+0xbc/0x208

[ 2073.019236] bfq_pd_offline+0x178/0x238

[ 2073.019240] blkcg_deactivate_policy+0x1f0

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/7507ead1e9d42957c2340f2c4a0e9d00034e3366Refgit.kernel.org/stable/c/8410f70977734f21b8ed45c37e925d311dfda2e7Refgit.kernel.org/stable/c/87fdfe8589d43e471dffb4c60f75eeb6f37afc4cRefgit.kernel.org/stable/c/8f34dea99cd7761156a146a5258a67d045d862f7Refgit.kernel.org/stable/c/c01fced8d38fbccc82787065229578006f28e020Refgit.kernel.org/stable/c/c4f5a678add58a8a0e7ee5e038496b376ea6d205

How CyberStrike helps

Frequently asked questions

What is CVE-2022-49179?

CVE-2022-49179 is a high-severity vulnerability. It was published on February 26, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2022-49179?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2022-49179?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2022-49179?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-49179 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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