SMB3: Fix deadlock in validate negotiate hits reconnect

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Currently we skip SMB2_TREE_CONNECT command when checking during
reconnect because Tree Connect happens when establishing
an SMB session. For SMB 3.0 protocol version the code also calls
validate negotiate which results in SMB2_IOCL command being sent
over the wire. This may deadlock on trying to acquire a mutex when
checking for reconnect. Fix this by skipping SMB2_IOCL command
when doing the reconnect check.

Signed-off-by: Pavel Shilovsky <pshilov@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
CC: Stable <stable@vger.kernel.org>

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Pavel Shilovsky 2019-07-22 11:34:59 -07:00 • committed by Steve French

parent 247bc9470b

commit e99c63e4d8

1 changed files with 1 additions and 1 deletions

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fs/cifs/smb2pdu.c

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