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CVE-2022-49053

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: scsi: target: tcmu: Fix possible page UAF tcmu_try_get_data_page() looks up pages under cmdr_lock, but it does not take refcoun…

Published Feb 26, 2025CWE-416EPSS 0.28%

Overview

CVE-2022-49053 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:

scsi: target: tcmu: Fix possible page UAF

tcmu_try_get_data_page() looks up pages under cmdr_lock, but it does not

take refcount properly and just returns page pointer. When

tcmu_try_get_data_page() returns, the returned page may have been freed by

tcmu_blocks_release().

We need to get_page() under cmdr_lock to avoid concurrent

tcmu_blocks_release().

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/a6968f7a367f128d120447360734344d5a3d5336Refgit.kernel.org/stable/c/a9564d84ed9f6ee71017d062d0d2182154294a4bRefgit.kernel.org/stable/c/aec36b98a1bbaa84bfd8299a306e4c12314af626Refgit.kernel.org/stable/c/b7f3b5d70c834f49f7d87a2f2ed1c6284d9a0322Refgit.kernel.org/stable/c/d7c5d79e50be6e06b669141e3db1f977a0dd4e8eRefgit.kernel.org/stable/c/e3e0e067d5b34e4a68e3cc55f8eebc413f56f8edRefgit.kernel.org/stable/c/fb7a5115422fbd6a4d505e8844f1ef5529f10489

How CyberStrike helps

Frequently asked questions

What is CVE-2022-49053?

CVE-2022-49053 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-2022-49053?

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-2022-49053?

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-2022-49053?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-49053 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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