Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: hwmon: (powerz) Fix missing usb_kill_urb() on signal interrupt wait_for_completion_interruptible_timeout() returns -ERESTARTSYS when interrupted. This needs to abort the URB and return an error. No data has been received from the device so any reads from the transfer buffer are invalid. The original code tests !ret, which only catches the timeout case (0). On signal delivery (-ERESTARTSYS), !ret is false so the function skips usb_kill_urb() and falls through to read from the unfilled transfer buffer. Fix by capturing the return value into a long (matching the function return type) and handling signal (negative) and timeout (zero) cases with separate checks that both call usb_kill_urb() before returning.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 6.7, < 6.12.86 |
References
- https://git.kernel.org/stable/c/8b51277eec433d4e724b273a5a5c64e8acfbe405Patch
- https://git.kernel.org/stable/c/b66437cb20a2d9ef201f40b675569f8ea7787c9fPatch
- https://git.kernel.org/stable/c/b6cb07f02253bdefd2339e57eaa1428a7b28cd0fPatch
- https://git.kernel.org/stable/c/d64458784036f5818e22781254b6be299d52a19cPatch
FAQ
What is CVE-2026-46073?
CVE-2026-46073 is a vulnerability with a CVSS score of 5.5 (MEDIUM). In the Linux kernel, the following vulnerability has been resolved: hwmon: (powerz) Fix missing usb_kill_urb() on signal interrupt wait_for_completion_interruptible_timeout() returns -ERESTARTSYS wh...
How severe is CVE-2026-46073?
CVE-2026-46073 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-46073?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.