What’s Vulnerable › Vulnerabilities

CVE-2022-49545: ALSA: usb-audio: Cancel pending work at closing a MIDI substream

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-02-26 · updated 2026-08-04

Description

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.

Affected products

• Linux kernel: before 5.10.121; from 5.11 before 5.15.46; from 5.16 before 5.17.14; from 5.18 before 5.18.3 — fixed in 5.10.121, 5.15.46, 5.17.14, 5.18.3

How to fix

Upgrade to a fixed version: Linux kernel 5.10.121, 5.15.46, 5.17.14, 5.18.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/0125de38122f0f66bf61336158d12a1aabfe6425
• https://git.kernel.org/stable/c/11868ca21585561659c2575b0d6508ef8e9c4291
• https://git.kernel.org/stable/c/40bdb5ec957aca5c5c1924602bef6b0ab18e22d3
• https://git.kernel.org/stable/c/517dcef4d2dda0132648f1e4c079ed17bba4d1a4
• https://git.kernel.org/stable/c/5e5fe2b6065541c6216a7a003b0cddf386be0d2d

Get alerted when CVE-2022-49545 or the next vulnerability affects your stack