[PATCH 4.14 074/178] iscsi-target: fix memory leak in lio_target_tiqn_addtpg()

From: Greg Kroah-Hartman
Date: Mon Dec 18 2017 - 11:14:00 EST


4.14-stable review patch. If anyone has any objections, please let me know.

------------------

From: tangwenji <tang.wenji@xxxxxxxxxx>


[ Upstream commit 12d5a43b2dffb6cd28062b4e19024f7982393288 ]

tpg must free when call core_tpg_register() return fail

Signed-off-by: tangwenji <tang.wenji@xxxxxxxxxx>
Signed-off-by: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/target/iscsi/iscsi_target_configfs.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/target/iscsi/iscsi_target_configfs.c
+++ b/drivers/target/iscsi/iscsi_target_configfs.c
@@ -1123,7 +1123,7 @@ static struct se_portal_group *lio_targe

ret = core_tpg_register(wwn, &tpg->tpg_se_tpg, SCSI_PROTOCOL_ISCSI);
if (ret < 0)
- return NULL;
+ goto free_out;

ret = iscsit_tpg_add_portal_group(tiqn, tpg);
if (ret != 0)
@@ -1135,6 +1135,7 @@ static struct se_portal_group *lio_targe
return &tpg->tpg_se_tpg;
out:
core_tpg_deregister(&tpg->tpg_se_tpg);
+free_out:
kfree(tpg);
return NULL;
}