5.5

CVE-2024-56532

ALSA: us122l: Use snd_card_free_when_closed() at disconnection

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().
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 2.6.28 < 4.19.325
Linux ≫ Linux Kernel Version >= 4.20 < 5.4.287
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.231
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.174
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.120
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.64
Linux ≫ Linux Kernel Version >= 6.7 < 6.11.11
Linux ≫ Linux Kernel Version >= 6.12 < 6.12.2
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.21% 0.111
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
134c704f-9b21-4f2e-91b3-4a467353bcc0 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-667 Improper Locking

The product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors.

https://git.kernel.org/stable/c/020cbc4d7414f0962004213e2b7bc5cc607e9ec7
Patch
https://git.kernel.org/stable/c/2938dd2648522336133c151dd67bb9bf01cbd390
Patch
https://git.kernel.org/stable/c/75f418b249d84021865eaa59515d3ed9b75ce4d6
Patch
https://git.kernel.org/stable/c/9a48bd2184b142c92a4e17eac074c61fcf975bc9
Patch
https://git.kernel.org/stable/c/9b27924dc8d7f8a8c35e521287d4ccb9a006e597
Patch
https://git.kernel.org/stable/c/9d5c530e4d70f64b1114f2cc29ac690ba7ac4a38
Patch
https://git.kernel.org/stable/c/b7df09bb348016943f56b09dcaafe221e3f73947
Patch
https://git.kernel.org/stable/c/bc778ad3e495333eebda36fe91d5b2c93109cc16
Patch
https://git.kernel.org/stable/c/bf0aa35a7cb8602cccf2387712114e836f65c154
Patch
https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html