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CVE-2026-64601

ALSA: us144mkii: capture_urb_complete: redundant usb_anchor_urb corrupts anchor list on each resubmission

Published: Aug 6, 2026Updated: Aug 8, 2026 Sources: CVE List NVD
7.8HIGH
NVD MITRE
EPSS Score
0.1%
Top 97.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Self-Check
Not available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:LAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Affected Products

Linux
oss-projectaka the linux kernel
LinuxOn-premOS
Operating Systems / linux-distro

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.
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References

https://git.kernel.org/stable/c/16f14f55141d4c55c3f321f93c328fff7cd6860a
git.kernel.org
https://git.kernel.org/stable/c/ab1db64912428cdf06a4f9542e16e0575e9ad59f
git.kernel.org
https://git.kernel.org/stable/c/5cff1529a2f9b3461a7f5a6e36a86682fc290534
git.kernel.org

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