smb: client: clean up failed cached directory opens

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-98452
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-18 16:16:55 UTC
Updated2026-10-19 10:18:54 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: smb: client: clean up failed cached directory opens open_cached_dir() sends CREATE and QUERY_INFO as a compound request. If the CREATE succeeds but a later command returns an error, the function must retain the CREATE FID so common cleanup can issue SMB2_close(). It also must not treat a response error as a valid CREATE. Validate the CREATE response before using its fields, record the FIDs, and mark the handle open before handling errors from later compound commands. Move the -EREMCHG reconnect handling before response validation so a missing response does not hide the reconnect request. Count the handle when it is marked open; confirmed close responses decrement the counter, while existing close retry behavior remains best effort on transport failures.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected b0f6df737a1c5d9d5ff90cc946205d8af46cc067 48958ddda3d7eee3600261e2d90671f63e055dc4 git Not specified
CNA Linux Linux affected b0f6df737a1c5d9d5ff90cc946205d8af46cc067 abab661eed00fa102d3c35ddf1cce4f687e718c1 git Not specified
CNA Linux Linux affected b0f6df737a1c5d9d5ff90cc946205d8af46cc067 7c1509598a4fdfb54cb09ce33e4405bd6dbd8295 git Not specified
CNA Linux Linux affected b0f6df737a1c5d9d5ff90cc946205d8af46cc067 d2ff5fb93ea83034025850266b5eed391f96b825 git Not specified
CNA Linux Linux affected 5.1 Not specified
CNA Linux Linux unaffected 5.1 semver Not specified
CNA Linux Linux unaffected 6.12.112 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.55 6.18.* semver Not specified
CNA Linux Linux unaffected 7.2.9 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/48958ddda3d7eee3600261e2d90671f63e055dc4 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/abab661eed00fa102d3c35ddf1cce4f687e718c1 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/7c1509598a4fdfb54cb09ce33e4405bd6dbd8295 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/d2ff5fb93ea83034025850266b5eed391f96b825 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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