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CVE-2022-49176

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: bfq: fix use-after-free in bfq_dispatch_request KASAN reports a use-after-free report when doing normal scsi-mq test [69832.23…

Published Feb 26, 2025CWE-416EPSS 0.28%

Overview

CVE-2022-49176 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:

bfq: fix use-after-free in bfq_dispatch_request

KASAN reports a use-after-free report when doing normal scsi-mq test

[69832.239032] ==================================================================

[69832.241810] BUG: KASAN: use-after-free in bfq_dispatch_request+0x1045/0x44b0

[69832.243267] Read of size 8 at addr ffff88802622ba88 by task kworker/3:1H/155

[69832.244656]

[69832.245007] CPU: 3 PID: 155 Comm: kworker/3:1H Not tainted 5.10.0-10295-g576c6382529e #8

[69832.246626] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014

[69832.249069] Workqueue: kblockd blk_mq_run_work_fn

[69832.250022] Call Trace:

[69832.250541] dump_stack+0x9b/0xce

[69832.251232] ? bfq_dispatch_request+0x1045/0x44b0

[69832.252243] print_address_description.constprop.6+0x3e/0x60

[69832.253381] ? __cpuidle_text_end+0x5/0x5

[69832.254211] ? vprintk_func+0x6b/0x120

[69832.2549

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/080665e2c3cbfc68359b9a348a3546ed9b908e7aRefgit.kernel.org/stable/c/40b4ba0030e0b02cbacd424ebb9f4c8b0976c786Refgit.kernel.org/stable/c/5117c9ff4c2ebae0f5c2c262d42a25a8fbc086e6Refgit.kernel.org/stable/c/5687958bf18f84384d809f521210d0f5deed03b0Refgit.kernel.org/stable/c/74e610b5ee0d95e751280567100509eb11517efaRefgit.kernel.org/stable/c/ab552fcb17cc9e4afe0e4ac4df95fc7b30e8490aRefgit.kernel.org/stable/c/df6e00b1a53c57dca82c63b5ecbcad5452231bc7

How CyberStrike helps

Frequently asked questions

What is CVE-2022-49176?

CVE-2022-49176 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-2022-49176?

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-2022-49176?

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-2022-49176?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-49176 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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