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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2022-49291 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: Fix races among concurrent hw_params and hw_free calls Currently we have neither proper check nor protection against the concurrent calls of PCM hw_params and hw_free ioctls, which may result in a UAF. Since the existing PCM stream lock can't be used for protecting the whole ioctl operations, we need a new mutex to protect those racy calls. This patch introduced a new mutex, runtime->buffer_mutex, and applies it to both hw_params and hw_free ioctl code paths. Along with it, the both functions are slightly modified (the mmap_count check is moved into the state-check block) for code simplicity.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://git.kernel.org/stable/c/0090c13cbbdffd7da079ac56f80373a9a1be0bf8 Patch 
https://git.kernel.org/stable/c/0f6947f5f5208f6ebd4d76a82a4757e2839a23f8 Patch 
https://git.kernel.org/stable/c/1bbf82d9f961414d6c76a08f7f843ea068e0ab7b Patch 
https://git.kernel.org/stable/c/33061d0fba51d2bf70a2ef9645f703c33fe8e438 Patch 
https://git.kernel.org/stable/c/92ee3c60ec9fe64404dc035e7c41277d74aa26cb Patch 
https://git.kernel.org/stable/c/9cb6c40a6ebe4a0cfc9d6a181958211682cffea9 Patch 
https://git.kernel.org/stable/c/a42aa926843acca96c0dfbde2e835b8137f2f092 Patch 
https://git.kernel.org/stable/c/fbeb492694ce0441053de57699e1e2b7bc148a69 Patch 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-416 Use After Free CISA-ADP  

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2022-49291
NVD Published Date:
02/26/2025
NVD Last Modified:
03/25/2025
Source:
kernel.org