Bug 2464439 (CVE-2026-31757) - CVE-2026-31757 kernel: usb: misc: usbio: Fix URB memory leak on submit failure
Summary: CVE-2026-31757 kernel: usb: misc: usbio: Fix URB memory leak on submit failure
Keywords:
Status: NEW
Alias: CVE-2026-31757
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-01 15:06 UTC by OSIDB Bzimport
Modified: 2026-05-01 22:31 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description OSIDB Bzimport 2026-05-01 15:06:52 UTC 
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.
Comment 1 Keith Grant 2026-05-01 22:28:29 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026050144-CVE-2026-31757-89cb@gregkh/T
Note You need to log in before you can comment on or make changes to this bug.