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 4.7-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-4.7 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 @@ -1371,8 +1371,9 @@ 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-4.7/iscsi-target-fix-panic-when-adding-second-tcp-connection-to-iscsi-session.patch -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html