This is a note to let you know that I've just added the patch titled
iscsi-target: Fix panic when adding second TCP connection to iSCSI session
to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
iscsi-target-fix-panic-when-adding-second-tcp-connection-to-iscsi-session.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 8abc718de6e9e52d8a6bfdb735060554aeae25e4 Mon Sep 17 00:00:00 2001
From: Feng Li <lifeng1519@xxxxxxxxx>
Date: Tue, 12 Jul 2016 06:15:44 +0800
Subject: iscsi-target: Fix panic when adding second TCP connection to iSCSI session
From: Feng Li <lifeng1519@xxxxxxxxx>
commit 8abc718de6e9e52d8a6bfdb735060554aeae25e4 upstream.
In MC/S scenario, the conn->sess has been set NULL in
iscsi_login_non_zero_tsih_s1 when the second connection comes here,
then kernel panic.
The conn->sess will be assigned in iscsi_login_non_zero_tsih_s2. So
we should check whether it's NULL before calling.
Signed-off-by: Feng Li <lifeng1519@xxxxxxxxx>
Tested-by: Sumit Rai <sumit.rai@xxxxxxxxxxxxxx>
Signed-off-by: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/target/iscsi/iscsi_target_login.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
--- a/drivers/target/iscsi/iscsi_target_login.c
+++ b/drivers/target/iscsi/iscsi_target_login.c
@@ -1357,8 +1357,9 @@ static int __iscsi_target_login_thread(s
}
login->zero_tsih = zero_tsih;
- conn->sess->se_sess->sup_prot_ops =
- conn->conn_transport->iscsit_get_sup_prot_ops(conn);
+ if (conn->sess)
+ conn->sess->se_sess->sup_prot_ops =
+ conn->conn_transport->iscsit_get_sup_prot_ops(conn);
tpg = conn->tpg;
if (!tpg) {
Patches currently in stable-queue which might be from lifeng1519@xxxxxxxxx are
queue-4.4/iscsi-target-fix-panic-when-adding-second-tcp-connection-to-iscsi-session.patch
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