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| author | Nicholas Bellinger <nab@linux-iscsi.org> | 2014-09-17 11:45:17 -0700 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2014-11-05 20:27:44 +0000 |
| commit | 9c0e738c62a1b547590b5c4ce3ccf23cec371284 (patch) | |
| tree | 61eb0731218f963ab655ef6a5301d5858a774d90 /drivers/target | |
| parent | 1a4ba51a1d7def5f36b7dec2defd3c4ab27e9fb0 (diff) | |
| download | kernel_samsung_smdk4412-9c0e738c62a1b547590b5c4ce3ccf23cec371284.zip kernel_samsung_smdk4412-9c0e738c62a1b547590b5c4ce3ccf23cec371284.tar.gz kernel_samsung_smdk4412-9c0e738c62a1b547590b5c4ce3ccf23cec371284.tar.bz2 | |
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: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'drivers/target')
| -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 ab5dd16..ae4e7da 100644 --- a/drivers/target/iscsi/iscsi_target.c +++ b/drivers/target/iscsi/iscsi_target.c @@ -4306,6 +4306,7 @@ 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; @@ -4314,12 +4315,13 @@ 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) |