CVE-2024-56533

MEDIUM EPSS 10.5%
Published Dec 27, 20241y ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Dec 27, 2024 1y ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
10.5% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-667

Affected Products 6

VendorProductVersionRange
linuxlinux_kernel*≥2.6.13  –  <5.10.231
linuxlinux_kernel*≥5.11  –  <5.15.174
linuxlinux_kernel*≥5.16  –  <6.1.120
linuxlinux_kernel*≥6.2  –  <6.6.64
linuxlinux_kernel*≥6.7  –  <6.11.11
linuxlinux_kernel*≥6.12  –  <6.12.2

References 9

  • git.kernel.org https://git.kernel.org/stable/c/24fe9f7ca83ec9acf765339054951f5cd9ae5c5d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7bd8838c0ea886679a32834fdcacab296d072fbe
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/befcca1777525e37c659b4129d8ac7463b07ef67
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/dafb28f02be407e07a6f679e922a626592b481b0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e07605d855c4104d981653146a330ea48f6266ed
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e869642a77a9b3b98b0ab2c8fec7af4385140909
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ffbfc6c4330fc233698529656798bee44fea96f5
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/24fe9f7ca83ec9acf765339054951f5cd9ae5c5d
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7bd8838c0ea886679a32834fdcacab296d072fbe
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/befcca1777525e37c659b4129d8ac7463b07ef67
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/dafb28f02be407e07a6f679e922a626592b481b0
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e07605d855c4104d981653146a330ea48f6266ed
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/e869642a77a9b3b98b0ab2c8fec7af4385140909
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ffbfc6c4330fc233698529656798bee44fea96f5
    Patch