smb: client: Fix refcount leak for cifs_sb_tlink

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commit c2b77f4220 upstream.

Fix three refcount inconsistency issues related to `cifs_sb_tlink`.

Comments for `cifs_sb_tlink` state that `cifs_put_tlink()` needs to be
called after successful calls to `cifs_sb_tlink()`. Three calls fail to
update refcount accordingly, leading to possible resource leaks.

Fixes: 8ceb984379 ("CIFS: Move rename to ops struct")
Fixes: 2f1afe2599 ("cifs: Use smb 2 - 3 and cifsacl mount options getacl functions")
Fixes: 366ed846df ("cifs: Use smb 2 - 3 and cifsacl mount options setacl function")
Cc: stable@vger.kernel.org
Signed-off-by: Shuhao Fu <sfual@cse.ust.hk>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Shuhao Fu 2025-10-16 02:52:55 +00:00 • committed by Greg Kroah-Hartman

parent 4980373c5f

commit 896bb31e14

2 changed files with 8 additions and 6 deletions

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6

fs/smb/client/inode.c

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8

fs/smb/client/smb2ops.c

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