PT-2026-43958 · Linux+1 · Linux Kernel+1
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
A Use-After-Free (UAF) issue exists in the ALSA loopback driver. The
loopback check format() function may stop the capture side when playback starts with parameters that do not match a running capture stream. While peer lookup is performed under cable->lock, the snd pcm stop() function executes after the lock is released. A concurrent close operation can remove the capture entry from cable->streams[] and free its runtime while the playback trigger path still holds a stale peer substream pointer.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
DoS
Use After Free
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Related Identifiers
Affected Products
Linux Kernel
Rocky Linux