CVE-2026-43425 Details
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")
A vulnerability in the Linux kernel's USB MDC800 driver allows for improper handling of timeout events during data transfer. The issue arises in the 'mdc800_device_read' function, which submits a download URB (USB Request Block) and waits for its completion. If a timeout occurs without a response from the device, the function exits without canceling the active URB. This oversight enables a subsequent read operation to resubmit the same URB while it is still in transit, causing a warning in 'usb_submit_urb' about submitting an active URB. The vulnerability affects the Linux kernel stable group.
The vulnerability has been addressed in the Linux kernel. Users can upgrade to the latest version of the kernel to apply the fix.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/15536f6c15f48037a1672cbdea53266d67861ff6 | kernel.org | Patch |
| https://git.kernel.org/stable/c/155f471e38aa516f6c58c2ae03ca3dc222fa2fdb | kernel.org | Patch |
| https://git.kernel.org/stable/c/1be3b77de4eb89af8ae2fd6610546be778e25589 | kernel.org | Patch |
| https://git.kernel.org/stable/c/9bf877cc67309b2a063b0087c3ad8585fb11cec3 | kernel.org | Patch |
| https://git.kernel.org/stable/c/9fa5a49760979ba016506fe292a431c8b83f043e | kernel.org | Patch |
| https://git.kernel.org/stable/c/b7fed917f84e484e06c5e9926746d0b524e3a93e | kernel.org | Patch |
| https://git.kernel.org/stable/c/cc7398447810c9450c90d092efe9997569f8d96f | kernel.org | Patch |
| https://git.kernel.org/stable/c/d4a400a6a4c4d49f77a04a3f401df5ae1a10657c | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| NVD-CWE-noinfo | Insufficient Information to Classify Weakness | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 2.6.12.1, < 5.10.253 >= 5.11, < 5.15.203 >= 5.16, < 6.1.167 >= 6.2, < 6.6.130 >= 6.7, < 6.12.78 >= 6.13, < 6.18.19 >= 6.19, < 6.19.9 2.6.12 - 2.6.12 rc2 2.6.12 rc3 2.6.12 rc4 2.6.12 rc5 2.6.12 rc6 7.0 rc1 7.0 rc2 7.0 rc3 7.0 rc4 |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| May 20, 2026 | Initial Analysis | [email protected] |
| May 8, 2026 | New CVE Received | kernel.org |