usb: misc: usbio: Fix URB memory leak on submit failure

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Summary

CVECVE-2026-31757
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-01 15:16:38 UTC
Updated2026-05-08 18:26:44 UTC
DescriptionIn 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.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.000170000 probability, percentile 0.040610000 (date 2026-05-05)

Problem Types: CWE-401

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 121a0f839dbb397af5fabb701cea3e9983223e50 65ff09f48b0e72e4049096a989723406aabcf091 git Not specified
CNA Linux Linux affected 121a0f839dbb397af5fabb701cea3e9983223e50 1762dc43b983d321180582afba4a0c5185fae04c git Not specified
CNA Linux Linux affected 121a0f839dbb397af5fabb701cea3e9983223e50 33cfe0709b6bf1a7f1a16d5e8d65d003a71b6a21 git Not specified
CNA Linux Linux affected 6.18 Not specified
CNA Linux Linux unaffected 6.18 semver Not specified
CNA Linux Linux unaffected 6.18.22 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.12 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/33cfe0709b6bf1a7f1a16d5e8d65d003a71b6a21 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/65ff09f48b0e72e4049096a989723406aabcf091 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/1762dc43b983d321180582afba4a0c5185fae04c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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