CVE - CVE-2022-49733

CVE-ID
CVE-2022-49733	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/4051324a6dafd7053c74c475e80b3ba10ae672b0 URL:https://git.kernel.org/stable/c/4051324a6dafd7053c74c475e80b3ba10ae672b0 MISC:https://git.kernel.org/stable/c/723ac5ab2891b6c10dd6cc78ef5456af593490eb URL:https://git.kernel.org/stable/c/723ac5ab2891b6c10dd6cc78ef5456af593490eb MISC:https://git.kernel.org/stable/c/8015ef9e8a0ee5cecfd0cb6805834d007ab26f86 URL:https://git.kernel.org/stable/c/8015ef9e8a0ee5cecfd0cb6805834d007ab26f86 MISC:https://git.kernel.org/stable/c/8423f0b6d513b259fdab9c9bf4aaa6188d054c2d URL:https://git.kernel.org/stable/c/8423f0b6d513b259fdab9c9bf4aaa6188d054c2d MISC:https://git.kernel.org/stable/c/fce793a056c604b41a298317cf704dae255f1b36 URL:https://git.kernel.org/stable/c/fce793a056c604b41a298317cf704dae255f1b36
Assigning CNA
kernel.org
Date Record Created
20250226	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20250226)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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