CVE-2022-49545

MEDIUM5.5

ALSA: usb-audio: Cancel pending work at closing a MIDI substream

Published Feb 26, 2025

Modified 4 months ago

Details

In the Linux kernel, the following vulnerability has been resolved:

ALSA: usb-audio: Cancel pending work at closing a MIDI substream

At closing a USB MIDI output substream, there might be still a pending work, which would eventually access the rawmidi runtime object that is being released. For fixing the race, make sure to cancel the pending work at closing.

References

WEB

https://git.kernel.org/stable/c/0125de38122f0f66bf61336158d12a1aabfe6425

WEB

https://git.kernel.org/stable/c/11868ca21585561659c2575b0d6508ef8e9c4291

WEB

https://git.kernel.org/stable/c/40bdb5ec957aca5c5c1924602bef6b0ab18e22d3

WEB

https://git.kernel.org/stable/c/517dcef4d2dda0132648f1e4c079ed17bba4d1a4

WEB

https://git.kernel.org/stable/c/5e5fe2b6065541c6216a7a003b0cddf386be0d2d

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2022-49545

CVSS Analysis

CVSS v3.1

5.5

Exploitability

Attack Vector

LocalAV:L

Attack Complexity

LowAC:L

Privileges Required

LowPR:L

User Interaction

NoneUI:N

Scope

UnchangedS:U

Impact

Confidentiality

NoneC:N

Integrity

NoneI:N

Availability

HighA:H

5.5/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Ecosystems

Timeline

PublishedFeb 26, 2025

ModifiedDec 23, 2025