CVE-2024-56532

MEDIUM EPSS 11.2%
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: 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().

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
11.2% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-667

Affected Products 8

VendorProductVersionRange
linuxlinux_kernel*≥2.6.28  –  <4.19.325
linuxlinux_kernel*≥4.20  –  <5.4.287
linuxlinux_kernel*≥5.5  –  <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 11

  • git.kernel.org https://git.kernel.org/stable/c/020cbc4d7414f0962004213e2b7bc5cc607e9ec7
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2938dd2648522336133c151dd67bb9bf01cbd390
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/75f418b249d84021865eaa59515d3ed9b75ce4d6
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9a48bd2184b142c92a4e17eac074c61fcf975bc9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9b27924dc8d7f8a8c35e521287d4ccb9a006e597
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9d5c530e4d70f64b1114f2cc29ac690ba7ac4a38
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b7df09bb348016943f56b09dcaafe221e3f73947
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/bc778ad3e495333eebda36fe91d5b2c93109cc16
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/bf0aa35a7cb8602cccf2387712114e836f65c154
    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/020cbc4d7414f0962004213e2b7bc5cc607e9ec7
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2938dd2648522336133c151dd67bb9bf01cbd390
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/75f418b249d84021865eaa59515d3ed9b75ce4d6
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9a48bd2184b142c92a4e17eac074c61fcf975bc9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9b27924dc8d7f8a8c35e521287d4ccb9a006e597
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9d5c530e4d70f64b1114f2cc29ac690ba7ac4a38
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b7df09bb348016943f56b09dcaafe221e3f73947
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/bc778ad3e495333eebda36fe91d5b2c93109cc16
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/bf0aa35a7cb8602cccf2387712114e836f65c154
    Patch