diff options
| author | Nicholas Bellinger <nab@linux-iscsi.org> | 2014-09-17 11:45:17 -0700 |
|---|---|---|
| committer | Nicholas Bellinger <nab@linux-iscsi.org> | 2014-09-17 13:40:19 -0700 |
| commit | b53b0d99d6fbf7d44330395349a895521cfdbc96 (patch) | |
| tree | 46c4a42cf72b8e2c0d5a1bb615fcd9c273e31726 | |
| parent | 1f0b030c45c781f9fe568e5e2a813d6c8567a051 (diff) | |
| download | linux-rt-b53b0d99d6fbf7d44330395349a895521cfdbc96.tar.gz | |
iscsi-target: Fix memory corruption in iscsit_logout_post_handler_diffcid
This patch fixes a bug in iscsit_logout_post_handler_diffcid() where
a pointer used as storage for list_for_each_entry() was incorrectly
being used to determine if no matching entry had been found.
This patch changes iscsit_logout_post_handler_diffcid() to key off
bool conn_found to determine if the function needs to exit early.
Reported-by: Joern Engel <joern@logfs.org>
Cc: <stable@vger.kernel.org> # v3.1+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
| -rw-r--r-- | drivers/target/iscsi/iscsi_target.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c index 1f4c794f5fcc..260c3e1e312c 100644 --- a/drivers/target/iscsi/iscsi_target.c +++ b/drivers/target/iscsi/iscsi_target.c @@ -4540,6 +4540,7 @@ static void iscsit_logout_post_handler_diffcid( { struct iscsi_conn *l_conn; struct iscsi_session *sess = conn->sess; + bool conn_found = false; if (!sess) return; @@ -4548,12 +4549,13 @@ static void iscsit_logout_post_handler_diffcid( list_for_each_entry(l_conn, &sess->sess_conn_list, conn_list) { if (l_conn->cid == cid) { iscsit_inc_conn_usage_count(l_conn); + conn_found = true; break; } } spin_unlock_bh(&sess->conn_lock); - if (!l_conn) + if (!conn_found) return; if (l_conn->sock) |