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scsi: qedf: Check the validity of rjt frame before processing

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Link: https://lore.kernel.org/r/20200807110656.19965-3-jhasan@marvell.com
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Javed Hasan <jhasan@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Saurav Kashyap 2020-08-07 04:06:51 -07:00 committed by Martin K. Petersen
parent a521bbc38d
commit 7fb8ff0806
1 changed files with 5 additions and 0 deletions
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5
drivers/scsi/qedf/qedf_els.c
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@ -883,6 +883,11 @@ static void qedf_rec_compl(struct qedf_els_cb_arg *cb_arg)
opcode = fc_frame_payload_op(fp); opcode = fc_frame_payload_op(fp);
if (opcode == ELS_LS_RJT) { if (opcode == ELS_LS_RJT) {
rjt = fc_frame_payload_get(fp, sizeof(*rjt)); rjt = fc_frame_payload_get(fp, sizeof(*rjt));
if (!rjt) {
QEDF_ERR(&qedf->dbg_ctx, "payload get failed");
goto out_free_frame;
}
QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS, QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
"Received LS_RJT for REC: er_reason=0x%x, " "Received LS_RJT for REC: er_reason=0x%x, "
"er_explan=0x%x.\n", rjt->er_reason, rjt->er_explan); "er_explan=0x%x.\n", rjt->er_reason, rjt->er_explan);