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

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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.

Fixes: e2b76ab8b5 ("ksmbd: add support for read compound")
Signed-off-by: Ze Tan <tanze@kylinos.cn>
Reviewed-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>

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Ze Tan 2026-08-14 10:36:29 +08:00 • committed by Namjae Jeon

parent 4818df5aaa

commit 39f2032096

1 changed files with 9 additions and 1 deletions

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fs/smb/server/smb2pdu.c

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