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CVE-2022-49353

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: powerpc/papr_scm: don't requests stats with '0' sized stats buffer Sachin reported [1] that on a POWER-10 lpar he is seeing a k…

Published Feb 26, 2025CWE-476EPSS 0.23%

Overview

CVE-2022-49353 is a medium-severity vulnerability. It was published on February 26, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. 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:

powerpc/papr_scm: don't requests stats with '0' sized stats buffer

Sachin reported [1] that on a POWER-10 lpar he is seeing a kernel panic being

reported with vPMEM when papr_scm probe is being called. The panic is of the

form below and is observed only with following option disabled(profile) for the

said LPAR 'Enable Performance Information Collection' in the HMC:

Kernel attempted to write user page (1c) - exploit attempt? (uid: 0)

BUG: Kernel NULL pointer dereference on write at 0x0000001c

Faulting instruction address: 0xc008000001b90844

Oops: Kernel access of bad area, sig: 11 [#1]

<snip>

NIP [c008000001b90844] drc_pmem_query_stats+0x5c/0x270 [papr_scm]

LR [c008000001b92794] papr_scm_probe+0x2ac/0x6ec [papr_scm]

Call Trace:

0xc00000000941bca0 (unreliable)

papr_scm_probe+0x2ac/0x6ec [papr_scm]

platform_probe+0x98/0x150

really_probe+0xfc/0x510

__driver_probe_device+0x17c/0x

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/07bf9431b1590d1cd7a8d62075d0b50b073f0495Refgit.kernel.org/stable/c/e1295aab2ebcda1c1a9ed342baedc080e5c393e5

How CyberStrike helps

Frequently asked questions

What is CVE-2022-49353?

CVE-2022-49353 is a medium-severity vulnerability. It was published on February 26, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-49353?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2022-49353?

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-2022-49353?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-49353 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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