CVE-2025-38078
Description
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.
How to fix
- linux linux_kernel5.4.294, 5.10.238, 5.15.185, 6.1.141, 6.6.93, 6.12.31, 6.14.9 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | v < 5.4.294, 5.5 ≤ v < 5.10.238, 5.11 ≤ v < 5.15.185, 5.16 ≤ v < 6.1.141, 6.2 ≤ v < 6.6.93, 6.7 ≤ v < 6.12.31, 6.13 ≤ v < 6.14.9, 6.15 | 5.4.294, 5.10.238, 5.15.185, 6.1.141, 6.6.93, 6.12.31, 6.14.9 |
| debian debian_linux | 11.0 | — |
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