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CVE-2026-63904
UNKNOWN · CVSS n/a
EPSS exploitation probability: 0%
Published 2026-07-19T16:17:08.130 · Last modified 2026-07-19T16:17:08.130

Summary

In the Linux kernel, the following vulnerability has been resolved: usb: usbtmc: check URB actual_length for interrupt-IN notifications USBTMC devices can use an optional interrupt endpoint for notification messages. These typically contain two-byte headers indicating the payload format, but the driver does not check if these headers are present before accessing the data buffers. In cases where the URB actual_length is not enough to fit these headers, the driver will either cause an out-of-bounds read, or consume stale leftover data from a previous notification. Fix by checking if actual_data contains enough bytes for the headers, otherwise resubmit URB to the interrupt endpoint.

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.