CVE-2026-43425

MediumCVSS 5.5/10Last modified Nov 11, 2026

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")

Metrics

CVSS 3.1 5.5/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected software

VendorProductVersions
LinuxLinux>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 9fa5a49760979ba016506fe292a431c8b83f043e; >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 15536f6c15f48037a1672cbdea53266d67861ff6; >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 9bf877cc67309b2a063b0087c3ad8585fb11cec3; >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 155f471e38aa516f6c58c2ae03ca3dc222fa2fdb; >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < d4a400a6a4c4d49f77a04a3f401df5ae1a10657c; >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < b7fed917f84e484e06c5e9926746d0b524e3a93e; >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < cc7398447810c9450c90d092efe9997569f8d96f; >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2, < 1be3b77de4eb89af8ae2fd6610546be778e25589
LinuxLinux2.6.12

References

Timeline

Published
May 8, 2026
Last modified
Nov 11, 2026
NVD status
Analyzed

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CVE-2026-43425: Medium severity, CVSS 5.5 | Vulnix