CVE-2024-56533

Published Dec 27, 2024

Last updated 6 months ago

CVSS medium 5.5

Overview

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.
Source
416baaa9-dc9f-4396-8d5f-8c081fb06d67
NVD status
Modified
Products
linux_kernel

Risk scores

CVSS 3.1

Type
Primary
Base score
5.5
Impact score
3.6
Exploitability score
1.8
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Severity
MEDIUM

Weaknesses

nvd@nist.gov
CWE-667
134c704f-9b21-4f2e-91b3-4a467353bcc0
CWE-667

Social media

Hype score
Not currently trending

  1. CVE-2024-56533 Mitigated Soft Lockup Risk in Linux ALSA USB Disconnection In the Linux kernel, a vulnerability has been fixed: ALSA: usx2y: Update to snd_card_free_when_closed() during disconnection. The USB di... https://t.co/mQNBojlfYg

    @VulmonFeeds

    27 Dec 2024

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  2. CVE-2024-56533 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 sup… https://t.co/w1VxZwNhFx

    @CVEnew

    27 Dec 2024

    227 Impressions

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Configurations

Related CVEs

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References

Sources include official advisories and independent security research.