Linux Kernel USB f81604: Prevent short interrupt URB misuse
CVE-2026-23334 Published on March 25, 2026
can: usb: f81604: handle short interrupt urb messages properly
In the Linux kernel, the following vulnerability has been resolved:
can: usb: f81604: handle short interrupt urb messages properly
If an interrupt urb is received that is not the correct length, properly
detect it and don't attempt to treat the data as valid.
Products Associated with CVE-2026-23334
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Affected Versions
Linux:- Version 88da17436973e463bed59bea79771fb03a21555e and below 9b740ff5bc649575a5e14ca8ee54e3dd5010aaf0 is affected.
- Version 88da17436973e463bed59bea79771fb03a21555e and below c5d69da6c919648838734097861e979677eedcde is affected.
- Version 88da17436973e463bed59bea79771fb03a21555e and below 36ead57443146e6b730ce1f48ca3e9b17e19a3d2 is affected.
- Version 88da17436973e463bed59bea79771fb03a21555e and below 66615e6293388f75a56226d1216fd9cfb3d95e05 is affected.
- Version 88da17436973e463bed59bea79771fb03a21555e and below 7299b1b39a255f6092ce4ec0b65f66e9d6a357af is affected.
- Version 6.5 is affected.
- Before 6.5 is unaffected.
- Version 6.6.130, <= 6.6.* is unaffected.
- Version 6.12.77, <= 6.12.* is unaffected.
- Version 6.18.17, <= 6.18.* is unaffected.
- Version 6.19.7, <= 6.19.* is unaffected.
- Version 7.0, <= * is unaffected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.