smb/server: fix tree connection leak in smb2_tree_connect()

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Summary

CVECVE-2026-98162
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-25 14:17:27 UTC
Updated2026-09-25 14:17:27 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: smb/server: fix tree connection leak in smb2_tree_connect() See the procedure below: smb2_tree_connect ksmbd_tree_conn_connect xa_store(&sess->tree_conns, tree_conn->id, tree_conn) ksmbd_counter_inc(KSMBD_COUNTER_TREE_CONNS) ksmbd_share_tree_conn_inc(sc) ksmbd_iov_pin_rsp // fail status.ret = KSMBD_TREE_CONN_STATUS_NOMEM // do not disconnect tree_conn Disconnect the new tree connection if ksmbd_iov_pin_rsp() fails.

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d a6c88e5e3a75f1e4a98ad4bc4037465ccd7925bc git Not specified
CNA Linux Linux affected e2b76ab8b5c9327ab2dae6da05d0752eb2f4771d 39f2032096715daae5f6fd0f587ca7a474b019df git Not specified
CNA Linux Linux affected f2283680a80571ca82d710bc6ecd8f8beac67d63 git Not specified
CNA Linux Linux affected 9f297df20d93411c0b4ddad7f88ba04a7cd36e77 git Not specified
CNA Linux Linux affected 5.15.145 5.16 semver Not specified
CNA Linux Linux affected 6.1.71 6.2 semver Not specified
CNA Linux Linux affected 6.6 Not specified
CNA Linux Linux unaffected 6.6 semver Not specified
CNA Linux Linux unaffected 7.2.6 7.2.* semver Not specified
CNA Linux Linux unaffected 7.3-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/39f2032096715daae5f6fd0f587ca7a474b019df 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/a6c88e5e3a75f1e4a98ad4bc4037465ccd7925bc 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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