diff options
| author | Nicholas Bellinger <nab@linux-iscsi.org> | 2014-09-17 11:45:17 -0700 |
|---|---|---|
| committer | Zefan Li <lizefan@huawei.com> | 2014-12-01 18:02:33 +0800 |
| commit | bce95d5d5ce5d57e72da6ab6dda819c4d79cbb52 (patch) | |
| tree | 04e00e67bf5bd6f9f1f80b486caa6fbe1e8bc768 | |
| parent | c0efaae65f73e201a2a06f9eb407e2a442279a78 (diff) | |
iscsi-target: Fix memory corruption in iscsit_logout_post_handler_diffcid
commit b53b0d99d6fbf7d44330395349a895521cfdbc96 upstream.
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>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Zefan Li <lizefan@huawei.com>
| -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 d7ac2c095cc9..56d02e071d7a 100644 --- a/drivers/target/iscsi/iscsi_target.c +++ b/drivers/target/iscsi/iscsi_target.c @@ -4297,6 +4297,7 @@ 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; @@ -4305,12 +4306,13 @@ 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) |