Description
In the Linux kernel, the following vulnerability has been resolved: ALSA: usx2y: Use snd_card_free_when_closed() at disconnection The USB disconnect callback is supposed to be short and not too-long waiting. OTOH, the current code uses snd_card_free() at disconnection, but this waits for the close of all used fds, hence it can take long. It eventually blocks the upper layer USB ioctls, which may trigger a soft lockup. An easy workaround is to replace snd_card_free() with snd_card_free_when_closed(). This variant returns immediately while the release of resources is done asynchronously by the card device release at the last close.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
230cd5e24853ed4dd960461989b8ed0986d37a99 to < 24fe9f7ca83ec9acf765339054951f5cd9ae5c5daffected230cd5e24853ed4dd960461989b8ed0986d37a99 to < befcca1777525e37c659b4129d8ac7463b07ef67affected230cd5e24853ed4dd960461989b8ed0986d37a99 to < 7bd8838c0ea886679a32834fdcacab296d072fbeaffected230cd5e24853ed4dd960461989b8ed0986d37a99 to < e07605d855c4104d981653146a330ea48f6266edaffected230cd5e24853ed4dd960461989b8ed0986d37a99 to < ffbfc6c4330fc233698529656798bee44fea96f5affected230cd5e24853ed4dd960461989b8ed0986d37a99 to < e869642a77a9b3b98b0ab2c8fec7af4385140909affected230cd5e24853ed4dd960461989b8ed0986d37a99 to < dafb28f02be407e07a6f679e922a626592b481b0affected
Linux Linux
Default version status: affected
2.6.13affected0 to < 2.6.13unaffected5.10.231 to ≤ 5.10.*unaffected5.15.174 to ≤ 5.15.*unaffected6.1.120 to ≤ 6.1.*unaffected6.6.64 to ≤ 6.6.*unaffected6.11.11 to ≤ 6.11.*unaffected6.12.2 to ≤ 6.12.*unaffected6.13 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/24fe9f7ca83ec9acf765339054951f5cd9ae5c5d ↗
- https://git.kernel.org/stable/c/befcca1777525e37c659b4129d8ac7463b07ef67 ↗
- https://git.kernel.org/stable/c/7bd8838c0ea886679a32834fdcacab296d072fbe ↗
- https://git.kernel.org/stable/c/e07605d855c4104d981653146a330ea48f6266ed ↗
- https://git.kernel.org/stable/c/ffbfc6c4330fc233698529656798bee44fea96f5 ↗
- https://git.kernel.org/stable/c/e869642a77a9b3b98b0ab2c8fec7af4385140909 ↗
- https://git.kernel.org/stable/c/dafb28f02be407e07a6f679e922a626592b481b0 ↗
- https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html ↗
- https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html ↗