CVE-2026-43425
usb: image: mdc800: kill download URB on timeout
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Description
In the Linux kernel, the following vulnerability has been resolved: usb: image: mdc800: kill download URB on timeout mdc800_device_read() submits download_urb and waits for completion. If the timeout fires and the device has not responded, the function returns without killing the URB, leaving it active. A subsequent read() resubmits the same URB while it is still in-flight, triggering the WARN in usb_submit_urb(): "URB submitted while active" Check the return value of wait_event_timeout() and kill the URB if it indicates timeout, ensuring the URB is complete before its status is inspected or the URB is resubmitted. Similar to - commit 372c93131998 ("USB: yurex: fix control-URB timeout handling") - commit b98d5000c505 ("media: rc: iguanair: handle timeouts")
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://git.kernel.org/stable/c/9fa5a49760979ba016506fe292a431c8b83f043e
- https://git.kernel.org/stable/c/15536f6c15f48037a1672cbdea53266d67861ff6
- https://git.kernel.org/stable/c/9bf877cc67309b2a063b0087c3ad8585fb11cec3
- https://git.kernel.org/stable/c/155f471e38aa516f6c58c2ae03ca3dc222fa2fdb
- https://git.kernel.org/stable/c/d4a400a6a4c4d49f77a04a3f401df5ae1a10657c
References (8)
CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Quick Info
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