Unity Linux 20.1050a Security Update: kernel (UTSA-2026-053402)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-053402 advisory. In the Linux kernel, the following vulnerability has been resolved: ALSA: seq: Fix race of sndseqtimeropen The timer instance per queue is exclusive, and...

CVE-2021-47281 ALSA: seq: Fix race of snd_seq_timer_open()

In the Linux kernel, the following vulnerability has been resolved: ALSA: seq: Fix race of sndseqtimeropen The timer instance per queue is exclusive, and sndseqtimeropen should have managed the concurrent accesses. It looks as if it's checking the already existing timer instance at the beginning,...

CVE-2021-47281 ALSA: seq: Fix race of snd_seq_timer_open()

In the Linux kernel, the following vulnerability has been resolved: ALSA: seq: Fix race of sndseqtimeropen The timer instance per queue is exclusive, and sndseqtimeropen should have managed the concurrent accesses. It looks as if it's checking the already existing timer instance at the beginning,...

CVE-2021-47281

CVE-2021-47281 affects the Linux kernel ALSA seq subsystem: snd_seq_timer_open() has a race on timeri allocation per queue, allowing a later concurrent call to override the timer and cause a use-after-free until the queue closes. The vulnerability is caused by missing protection when checking the...

CVE-2021-47281: Use After Free

In the Linux kernel, the following vulnerability has been resolved: ALSA: seq: Fix race of sndseqtimeropen The timer instance per queue is exclusive, and sndseqtimeropen should have managed the concurrent accesses. It looks as if it's checking the already existing timer instance at the beginning,...

UVI-2021-1001018 ALSA: seq: Fix race of snd_seq_timer_open()

ALSA: seq: Fix race of sndseqtimeropen This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.12.11 by commit...

UVI-2021-1000945 ALSA: seq: Fix race of snd_seq_timer_open()

ALSA: seq: Fix race of sndseqtimeropen This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.10.44 by commit...