CVE-2026-64601
In the Linux kernel, the following vulnerability has been resolved: ALSA: us144mkii: capture_urb_complete: redundant usb_anchor_urb corrupts anchor list on each resubmission In capture_urb_complete(), usb_anchor_urb() is called on every completion callback, but the URB is already anchored from the initial submission in tascam_trigger_start(). Each redundant call corrupts the anchor's doubly-linked list and inflates the URB refcount. When usb_kill_anchored_urbs() traverses the list during stream stop / suspend / disconnect, the corrupted list leads to use-after-free. Remove the redundant usb_anchor_urb() from the resubmit path.
Affected versions
Linux kernel versions
6.18
and later are affected. Fixed in
6.18.39,
7.1.4,
7.2-rc2
and their respective stable series.
References
3 totalFrequently asked questions
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What is CVE-2026-64601?
CVE-2026-64601 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.18 onward and has been patched in 6.18.39, 7.1.4 and 7.2-rc2. CVE-2026-64601 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-2026-64601?
Yes. CVE-2026-64601 has been patched. Fixed versions include 6.18.39, 7.1.4 and 7.2-rc2. If you are running Linux kernel 6.18 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-64601 actively exploited?
No. CVE-2026-64601 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.