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CVE-2026-74642

Unknown

Last modified

CVE-2026-74642 is a vulnerability of currently unknown severity. 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..

Description

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.

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 49eccef6d6e1c00dac6fb2e7eb6f9206c33e1c37, < d431941825d357be7d9ab0cb7505e3a1963bd89e; >= 8a7a33b846d6ba695891b8d0040027cdbad8cd52, < 422d8a02de5ce6a29d616d55e5ead5dec69ac1d7; >= cc014ebf803174f0e5d15956dfc5a38413c945ae, < d217d723c5e43881b952cdb978477f7f2dc0b6d7; >= ae388c0e1bf727972096f770f82d12e4f748d1b6, < f9d492a39ebeb1a56f13ec6dd165a18a48dec812; >= 4a05b2d1b4642df74f30b6f54843e825c4a2bfd3, < f8a80cfb68613fb7e6452b66447dbc63f435d140
LinuxLinux>= 6.6.151, < 6.6.152; >= 6.12.103, < 6.12.104; >= 6.18.44, < 6.18.45; >= 7.1.8, < 7.1.9

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-74642?
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.
How severe is CVE-2026-74642?
Severity scoring for CVE-2026-74642 is pending analysis.
How do I fix CVE-2026-74642?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST