Description
In the Linux kernel, the following vulnerability has been resolved: ALSA: us122l: 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. The loop of us122l->mmap_count check is dropped as well. The check is useless for the asynchronous operation with *_when_closed().
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
030a07e441296c372f946cd4065b5d831d8dc40c to < 020cbc4d7414f0962004213e2b7bc5cc607e9ec7affected030a07e441296c372f946cd4065b5d831d8dc40c to < 75f418b249d84021865eaa59515d3ed9b75ce4d6affected030a07e441296c372f946cd4065b5d831d8dc40c to < bf0aa35a7cb8602cccf2387712114e836f65c154affected030a07e441296c372f946cd4065b5d831d8dc40c to < 9a48bd2184b142c92a4e17eac074c61fcf975bc9affected030a07e441296c372f946cd4065b5d831d8dc40c to < bc778ad3e495333eebda36fe91d5b2c93109cc16affected030a07e441296c372f946cd4065b5d831d8dc40c to < 2938dd2648522336133c151dd67bb9bf01cbd390affected030a07e441296c372f946cd4065b5d831d8dc40c to < 9b27924dc8d7f8a8c35e521287d4ccb9a006e597affected030a07e441296c372f946cd4065b5d831d8dc40c to < 9d5c530e4d70f64b1114f2cc29ac690ba7ac4a38affected030a07e441296c372f946cd4065b5d831d8dc40c to < b7df09bb348016943f56b09dcaafe221e3f73947affected
Linux Linux
Default version status: affected
2.6.28affected0 to < 2.6.28unaffected4.19.325 to ≤ 4.19.*unaffected5.4.287 to ≤ 5.4.*unaffected5.10.231 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/020cbc4d7414f0962004213e2b7bc5cc607e9ec7 ↗
- https://git.kernel.org/stable/c/75f418b249d84021865eaa59515d3ed9b75ce4d6 ↗
- https://git.kernel.org/stable/c/bf0aa35a7cb8602cccf2387712114e836f65c154 ↗
- https://git.kernel.org/stable/c/9a48bd2184b142c92a4e17eac074c61fcf975bc9 ↗
- https://git.kernel.org/stable/c/bc778ad3e495333eebda36fe91d5b2c93109cc16 ↗
- https://git.kernel.org/stable/c/2938dd2648522336133c151dd67bb9bf01cbd390 ↗
- https://git.kernel.org/stable/c/9b27924dc8d7f8a8c35e521287d4ccb9a006e597 ↗
- https://git.kernel.org/stable/c/9d5c530e4d70f64b1114f2cc29ac690ba7ac4a38 ↗
- https://git.kernel.org/stable/c/b7df09bb348016943f56b09dcaafe221e3f73947 ↗
- https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html ↗
- https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html ↗