CVE-2026-64601

High

Description

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.

SeverityHigh
CVSS7.8
Exploit probability—
ProductLinux
PublishedAug 6, 2026
First seenAug 6, 2026

How to fix

Update
  • Linux Linux16f14f55141d4c55c3f321f93c328fff7cd6860a, ab1db64912428cdf06a4f9542e16e0575e9ad59f, 5cff1529a2f9b3461a7f5a6e36a86682fc290534 or later

Affected products

ProductAffected versionsFixed in
Linux Linuxc1bb0c13e430623c26543baae5bb9ae21139db87 ≤ v < 16f14f55141d4c55c3f321f93c328fff7cd6860a, c1bb0c13e430623c26543baae5bb9ae21139db87 ≤ v < ab1db64912428cdf06a4f9542e16e0575e9ad59f, c1bb0c13e430623c26543baae5bb9ae21139db87 ≤ v < 5cff1529a2f9b3461a7f5a6e36a86682fc290534, 6.1816f14f55141d4c55c3f321f93c328fff7cd6860a, ab1db64912428cdf06a4f9542e16e0575e9ad59f, 5cff1529a2f9b3461a7f5a6e36a86682fc290534

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