CVE-2026-43425
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.
Does this matter?
Lower severity and a low EPSS score (0.12%). Track it; it rarely justifies an emergency change on its own.
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")
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.12% probability · 2th percentile
- CISA KEV
- Not listed
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/15536f6c15f48037a1672cbdea53266d67861ff6Patch
- https://git.kernel.org/stable/c/155f471e38aa516f6c58c2ae03ca3dc222fa2fdbPatch
- https://git.kernel.org/stable/c/1be3b77de4eb89af8ae2fd6610546be778e25589Patch
- https://git.kernel.org/stable/c/9bf877cc67309b2a063b0087c3ad8585fb11cec3Patch
- https://git.kernel.org/stable/c/9fa5a49760979ba016506fe292a431c8b83f043ePatch
- https://git.kernel.org/stable/c/b7fed917f84e484e06c5e9926746d0b524e3a93ePatch
- https://git.kernel.org/stable/c/cc7398447810c9450c90d092efe9997569f8d96fPatch
- https://git.kernel.org/stable/c/d4a400a6a4c4d49f77a04a3f401df5ae1a10657cPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.