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Vulnerability Details CVE-2025-38078

In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: Fix race of buffer access at PCM OSS layer The PCM OSS layer tries to clear the buffer with the silence data at initialization (or reconfiguration) of a stream with the explicit call of snd_pcm_format_set_silence() with runtime->dma_area. But this may lead to a UAF because the accessed runtime->dma_area might be freed concurrently, as it's performed outside the PCM ops. For avoiding it, move the code into the PCM core and perform it inside the buffer access lock, so that it won't be changed during the operation.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 26.0%
CVSS Severity
CVSS v3 Score 4.7
Products affected by CVE-2025-38078


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