iscsi-target: Avoid rejecting incorrect ITT for Data-Out
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> Cc: stable@vger.kernel.org # 3.10+ Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
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@ -1309,7 +1309,7 @@ iscsit_check_dataout_hdr(struct iscsi_conn *conn, unsigned char *buf,
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if (cmd->data_direction != DMA_TO_DEVICE) {
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pr_err("Command ITT: 0x%08x received DataOUT for a"
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" NON-WRITE command.\n", cmd->init_task_tag);
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return iscsit_reject_cmd(cmd, ISCSI_REASON_PROTOCOL_ERROR, buf);
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return iscsit_dump_data_payload(conn, payload_length, 1);
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}
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se_cmd = &cmd->se_cmd;
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iscsit_mod_dataout_timer(cmd);
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