VYPR
Unrated severityNVD Advisory· Published Feb 26, 2025· Updated Oct 1, 2025

ALSA: pcm: Check for null pointer of pointer substream before dereferencing it

CVE-2022-49498

Description

In the Linux kernel, the following vulnerability has been resolved:

ALSA: pcm: Check for null pointer of pointer substream before dereferencing it

Pointer substream is being dereferenced on the assignment of pointer card before substream is being null checked with the macro PCM_RUNTIME_CHECK. Although PCM_RUNTIME_CHECK calls BUG_ON, it still is useful to perform the the pointer check before card is assigned.

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Affected products

128

Patches

Vulnerability mechanics

References

6

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