smb: client: fix oops due to uninitialised var in smb2_unlink()

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-23282
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-03-25 11:16:22 UTC
Updated2026-05-22 00:24:34 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: smb: client: fix oops due to uninitialised var in smb2_unlink() If SMB2_open_init() or SMB2_close_init() fails (e.g. reconnect), the iovs set @rqst will be left uninitialised, hence calling SMB2_open_free(), SMB2_close_free() or smb2_set_related() on them will oops. Fix this by initialising @close_iov and @open_iov before setting them in @rqst.

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: CWE-908

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 1cf9f2a6a544288516a7b9e883a48eba6246bcf2 86163b98891aa9800f6103252e5acc7bb98afb91 git Not specified
CNA Linux Linux affected 1cf9f2a6a544288516a7b9e883a48eba6246bcf2 dc710c87af3341554d02d634ada1d2036c49a94a git Not specified
CNA Linux Linux affected 1cf9f2a6a544288516a7b9e883a48eba6246bcf2 048efe129a297256d3c2088cf8d79515ff5ec864 git Not specified
CNA Linux Linux affected 6.17 Not specified
CNA Linux Linux unaffected 6.17 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/048efe129a297256d3c2088cf8d79515ff5ec864 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/86163b98891aa9800f6103252e5acc7bb98afb91 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/dc710c87af3341554d02d634ada1d2036c49a94a 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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