CVE-2025-38078High· 7.8▾ TwilightIn 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 str…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 42.9 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Oct 15.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.2%
0.2% → 0.2%
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.
linux_kernel < 5.4.294linux_kernel >= 5.5, < 5.10.238linux_kernel >= 5.11, < 5.15.185linux_kernel >= 5.16, < 6.1.141linux_kernel >= 6.2, < 6.6.93linux_kernel >= 6.7, < 6.12.31linux_kernel >= 6.13, < 6.14.9linux_kernel = 6.15debian_linux = 11.0Upgrade past the affected range:
linux_kernel 6.14.9Connected by shared product, vendor, weakness, or advisory.
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