FKIE_CVE-2026-43425
Vulnerability from fkie_nvd - Published: 2026-05-08 15:16 - Updated: 2026-05-20 18:35
Severity
Summary
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")
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | 2.6.12 | |
| linux | linux_kernel | 2.6.12 | |
| linux | linux_kernel | 2.6.12 | |
| linux | linux_kernel | 2.6.12 | |
| linux | linux_kernel | 2.6.12 | |
| linux | linux_kernel | 2.6.12 | |
| linux | linux_kernel | 7.0 | |
| linux | linux_kernel | 7.0 | |
| linux | linux_kernel | 7.0 | |
| linux | linux_kernel | 7.0 |
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: image: mdc800: kill download URB on timeout\n\nmdc800_device_read() submits download_urb and waits for completion.\nIf the timeout fires and the device has not responded, the function\nreturns without killing the URB, leaving it active.\n\nA subsequent read() resubmits the same URB while it is still\nin-flight, triggering the WARN in usb_submit_urb():\n\n \"URB submitted while active\"\n\nCheck the return value of wait_event_timeout() and kill the URB if\nit indicates timeout, ensuring the URB is complete before its status\nis inspected or the URB is resubmitted.\n\nSimilar to\n- commit 372c93131998 (\"USB: yurex: fix control-URB timeout handling\")\n- commit b98d5000c505 (\"media: rc: iguanair: handle timeouts\")"
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"id": "CVE-2026-43425",
"lastModified": "2026-05-20T18:35:46.093",
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"confidentialityImpact": "NONE",
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"published": "2026-05-08T15:16:54.620",
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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