The vulnerability of the loopback_check_format() function in the sound/drivers/aloop.c module of the Linux kernel’s audio subsystem allows a hacker to access protected information or cause service failures.

The vulnerability of the loopbackcheckformat function in the sound/drivers/aloop.c module of the Linux kernel’s audio subsystem is related to the repeated use of previously freed memory due to concurrent access to resources. Exploiting this vulnerability could allow an attacker to gain access to...

CVE-2026-23191 ALSA: aloop: Fix racy access at PCM trigger

In the Linux kernel, the following vulnerability has been resolved: ALSA: aloop: Fix racy access at PCM trigger The PCM trigger callback of aloop driver tries to check the PCM state and stop the stream of the tied substream in the corresponding cable. Since both check and stop operations are...