CVE-2026-64601

Summary

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 Software

VendorProductVersion RangeStatus
LinuxLinuxc1bb0c13e430623c26543baae5bb9ae21139db87 < 16f14f55141d4c55c3f321f93c328fff7cd6860aaffected
LinuxLinuxc1bb0c13e430623c26543baae5bb9ae21139db87 < ab1db64912428cdf06a4f9542e16e0575e9ad59faffected
LinuxLinuxc1bb0c13e430623c26543baae5bb9ae21139db87 < 5cff1529a2f9b3461a7f5a6e36a86682fc290534affected
LinuxLinux6.18affected
LinuxLinux0 < 6.18unaffected
LinuxLinux6.18.39 <= 6.18.*unaffected
LinuxLinux7.1.4 <= 7.1.*unaffected
LinuxLinux7.2-rc2 <= *unaffected

Weaknesses

References