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authorNicholas Bellinger <nab@linux-iscsi.org>2014-06-20 10:59:57 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-07-06 18:54:13 -0700
commit2152a122cdec4adcfcdd123ee6ab93867b35d5b5 (patch)
tree4f0cc3ce1b2b95b666d8f396b5e9ac2fa88c829c /drivers/target
parent69256ce37fa37dc92680579c4e4a73f15fe79d36 (diff)
downloadlinux-linaro-stable-2152a122cdec4adcfcdd123ee6ab93867b35d5b5.tar.gz
iscsi-target: Avoid rejecting incorrect ITT for Data-Out
commit 97c99b47ac58bacb7c09e1f47d5d184434f6b06a upstream. This patch changes iscsit_check_dataout_hdr() to dump the incoming Data-Out payload when the received ITT is not associated with a WRITE, instead of calling iscsit_reject_cmd() for the non WRITE ITT descriptor. This addresses a bug where an initiator sending an Data-Out for an ITT associated with a READ would end up generating a reject for the READ, eventually resulting in list corruption. Reported-by: Santosh Kulkarni <santosh.kulkarni@calsoftinc.com> Reported-by: Arshad Hussain <arshad.hussain@calsoftinc.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/target')
-rw-r--r--drivers/target/iscsi/iscsi_target.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index 72663ba228dc..799f84e686b5 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -1313,7 +1313,7 @@ iscsit_check_dataout_hdr(struct iscsi_conn *conn, unsigned char *buf,
if (cmd->data_direction != DMA_TO_DEVICE) {
pr_err("Command ITT: 0x%08x received DataOUT for a"
" NON-WRITE command.\n", cmd->init_task_tag);
- return iscsit_reject_cmd(cmd, ISCSI_REASON_PROTOCOL_ERROR, buf);
+ return iscsit_dump_data_payload(conn, payload_length, 1);
}
se_cmd = &cmd->se_cmd;
iscsit_mod_dataout_timer(cmd);