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.
Affected versions
Linux kernel versions
6.6.151,
6.12.103,
6.18.44,
7.1.8
and later are affected. Fixed in
6.6.152,
6.12.104,
6.18.45,
7.1.9
and their respective stable series.
References
5 totalFrequently asked questions
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What is CVE-2026-74642?
CVE-2026-74642 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.6.151 onward and has been patched in 6.6.152, 6.12.104, 6.18.45 and others. CVE-2026-74642 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-74642?
Yes. CVE-2026-74642 has been patched. Fixed versions include 6.6.152, 6.12.104, 6.18.45 and others. If you are running Linux kernel 6.6.151 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-74642 actively exploited?
No. CVE-2026-74642 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.