CVE-2026-74642
ALSA: usb: Fix UAF at delayed release of MIDI2 EPs
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 6.6.152, 6.12.104, 6.18.45, 7.1.9
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
In the Linux kernel, the following vulnerability has been resolved: ALSA: usb: Fix UAF at delayed release of MIDI2 EPs The recent fix for UAF in ump_to_endpoint() caused another UAF because it tries to dereference the UMP endpoint object, but this might be executed at a delayed context where the endpoint has been already released. Add private_free to clear the associated data for avoiding the further dereference for delayed releases.
Timeline
- CVE published
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
From 6.6.151 · fixed in 6.6.152; From 6.12.103 · fixed in 6.12.104; From 6.18.44 · fixed in 6.18.45; From 7.1.8 · fixed in 7.1.9