Medium 5.5Published May 1, 2026

CVE-2026-31757usb: misc: usbio: Fix URB memory leak on submit failure

Updated under an hour ago (Oct 27, 2026, 11:23 PM ET)

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: usb: misc: usbio: Fix URB memory leak on submit failure When usb_submit_urb() fails in usbio_probe(), the previously allocated URB is never freed, causing a memory leak. Fix this by jumping to err_free_urb label to properly release the URB on the error path.

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Analyzed
Record last updated: May 11, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	121a0f839dbb397af5fabb701cea3e9983223e50 builds before 65ff09f48b0e72e4049096a989723406aabcf091; from 121a0f839dbb397af5fabb701cea3e9983223e50 before 1762dc43b983d321180582afba4a0c5185fae04c; 121a0f839dbb397af5fabb701cea3e9983223e50 builds before 33cfe0709b6bf1a7f1a16d5e8d65d003a71b6a21	CNA record
linux linux_kernel linux:linux_kernel	from 6.18 before 6.18.22; from 6.19 before 6.19.12; 7.0; 7.0; 7.0; 7.0; 7.0; 7.0	NVD

References

References

https://git.kernel.org/stable/c/65ff09f48b0e72e4049096a989723406aabcf091	patch
https://git.kernel.org/stable/c/1762dc43b983d321180582afba4a0c5185fae04c	patch
https://git.kernel.org/stable/c/33cfe0709b6bf1a7f1a16d5e8d65d003a71b6a21	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.