From bbc050488525e1ab1194c27355f63c66814385b8 Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger Date: Tue, 10 Jun 2014 04:03:54 +0000 Subject: [PATCH] iscsi-target: Fix ABORT_TASK + connection reset iscsi_queue_req memory leak This patch fixes a iscsi_queue_req memory leak when ABORT_TASK response has been queued by TFO->queue_tm_rsp() -> lio_queue_tm_rsp() after a long standing I/O completes, but the connection has already reset and waiting for cleanup to complete in iscsit_release_commands_from_conn() -> transport_generic_free_cmd() -> transport_wait_for_tasks() code. It moves iscsit_free_queue_reqs_for_conn() after the per-connection command list has been released, so that the associated se_cmd tag can be completed + released by target-core before freeing any remaining iscsi_queue_req memory for the connection generated by lio_queue_tm_rsp(). Cc: Thomas Glanzmann Cc: Charalampos Pournaris Cc: stable@vger.kernel.org # 3.10+ Signed-off-by: Nicholas Bellinger --- drivers/target/iscsi/iscsi_target.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c index 2396216dd146..e0d98344e4bd 100644 --- a/drivers/target/iscsi/iscsi_target.c +++ b/drivers/target/iscsi/iscsi_target.c @@ -4231,8 +4231,6 @@ int iscsit_close_connection( if (conn->conn_transport->iscsit_wait_conn) conn->conn_transport->iscsit_wait_conn(conn); - iscsit_free_queue_reqs_for_conn(conn); - /* * During Connection recovery drop unacknowledged out of order * commands for this connection, and prepare the other commands @@ -4249,6 +4247,7 @@ int iscsit_close_connection( iscsit_clear_ooo_cmdsns_for_conn(conn); iscsit_release_commands_from_conn(conn); } + iscsit_free_queue_reqs_for_conn(conn); /* * Handle decrementing session or connection usage count if -- 2.20.1