can: usb: f81604: correctly anchor the urb in the read bulk callback

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Summary

CVECVE-2026-23347
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-03-25 11:16:32 UTC
Updated2026-04-24 18:10:38 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: can: usb: f81604: correctly anchor the urb in the read bulk callback When submitting an urb, that is using the anchor pattern, it needs to be anchored before submitting it otherwise it could be leaked if usb_kill_anchored_urbs() is called. This logic is correctly done elsewhere in the driver, except in the read bulk callback so do that here also.

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

Problem Types: NVD-CWE-noinfo

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 88da17436973e463bed59bea79771fb03a21555e 54ee74307165b348b2fddcd7942eb48fb4ee1237 git Not specified
CNA Linux Linux affected 88da17436973e463bed59bea79771fb03a21555e c001214e12202338425d6dda5d2a1919d674282d git Not specified
CNA Linux Linux affected 88da17436973e463bed59bea79771fb03a21555e f6d80b104f904a6da922907394eec66d3e2ffc57 git Not specified
CNA Linux Linux affected 88da17436973e463bed59bea79771fb03a21555e 7724645c4792914cd07f36718816c5369cc57970 git Not specified
CNA Linux Linux affected 88da17436973e463bed59bea79771fb03a21555e 952caa5da10bed22be09612433964f6877ba0dde git Not specified
CNA Linux Linux affected 6.5 Not specified
CNA Linux Linux unaffected 6.5 semver Not specified
CNA Linux Linux unaffected 6.6.130 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.77 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.17 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.7 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/54ee74307165b348b2fddcd7942eb48fb4ee1237 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/952caa5da10bed22be09612433964f6877ba0dde 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/c001214e12202338425d6dda5d2a1919d674282d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/f6d80b104f904a6da922907394eec66d3e2ffc57 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/7724645c4792914cd07f36718816c5369cc57970 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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