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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2022-49733 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: oss: Fix race at SNDCTL_DSP_SYNC There is a small race window at snd_pcm_oss_sync() that is called from OSS PCM SNDCTL_DSP_SYNC ioctl; namely the function calls snd_pcm_oss_make_ready() at first, then takes the params_lock mutex for the rest. When the stream is set up again by another thread between them, it leads to inconsistency, and may result in unexpected results such as NULL dereference of OSS buffer as a fuzzer spotted recently. The fix is simply to cover snd_pcm_oss_make_ready() call into the same params_lock mutex with snd_pcm_oss_make_ready_locked() variant.


Metrics

 
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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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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/4051324a6dafd7053c74c475e80b3ba10ae672b0 kernel.org Patch 
https://git.kernel.org/stable/c/723ac5ab2891b6c10dd6cc78ef5456af593490eb kernel.org Patch 
https://git.kernel.org/stable/c/8015ef9e8a0ee5cecfd0cb6805834d007ab26f86 kernel.org Patch 
https://git.kernel.org/stable/c/8423f0b6d513b259fdab9c9bf4aaa6188d054c2d kernel.org Patch 
https://git.kernel.org/stable/c/fce793a056c604b41a298317cf704dae255f1b36 kernel.org Patch 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') cwe source acceptance level NIST  
CWE-476 NULL Pointer Dereference cwe source acceptance level NIST   CISA-ADP  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2022-49733
NVD Published Date:
03/02/2025
NVD Last Modified:
10/01/2025
Source:
kernel.org