diff options
author | Bart Van Assche <bart.vanassche@sandisk.com> | 2015-02-18 15:33:58 +0100 |
---|---|---|
committer | Sasha Levin <sasha.levin@oracle.com> | 2015-03-28 10:22:58 -0400 |
commit | 6526d32f6b0b0bb8fd024580f91a32e2737fae57 (patch) | |
tree | 9bd1964c7e94114c39e1a7308df845a31ded5291 /drivers/target | |
parent | 5ef7008ba150150e591b27f78f0fca2d3d9ebae2 (diff) |
target: Fix reference leak in target_get_sess_cmd() error path
[ Upstream commit 7544e597343e2166daba3f32e4708533aa53c233 ]
This patch fixes a se_cmd->cmd_kref leak buf when se_sess->sess_tearing_down
is true within target_get_sess_cmd() submission path code.
This se_cmd reference leak can occur during active session shutdown when
ack_kref=1 is passed by target_submit_cmd_[map_sgls,tmr]() callers.
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: <stable@vger.kernel.org> # 3.6+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Diffstat (limited to 'drivers/target')
-rw-r--r-- | drivers/target/target_core_transport.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index be877bf6f730..2e0998420254 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -2389,6 +2389,10 @@ int target_get_sess_cmd(struct se_session *se_sess, struct se_cmd *se_cmd, list_add_tail(&se_cmd->se_cmd_list, &se_sess->sess_cmd_list); out: spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags); + + if (ret && ack_kref) + target_put_sess_cmd(se_sess, se_cmd); + return ret; } EXPORT_SYMBOL(target_get_sess_cmd); |