From: Nilesh Javali Date: Wed, 7 Jun 2023 11:38:39 +0000 (+0530) Subject: scsi: qla2xxx: Check valid rport returned by fc_bsg_to_rport() X-Git-Tag: v4.14.322~85 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f35bd94b4e11c41de90cd0fa72c9062e8196822f;p=thirdparty%2Fkernel%2Fstable.git scsi: qla2xxx: Check valid rport returned by fc_bsg_to_rport() commit af73f23a27206ffb3c477cac75b5fcf03410556e upstream. Klocwork reported warning of rport maybe NULL and will be dereferenced. rport returned by call to fc_bsg_to_rport() could be NULL and dereferenced. Check valid rport returned by fc_bsg_to_rport(). Cc: stable@vger.kernel.org Signed-off-by: Nilesh Javali Link: https://lore.kernel.org/r/20230607113843.37185-5-njavali@marvell.com Reviewed-by: Himanshu Madhani Signed-off-by: Martin K. Petersen Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/scsi/qla2xxx/qla_bsg.c b/drivers/scsi/qla2xxx/qla_bsg.c index b50478fa14ad3..492236f0e9b27 100644 --- a/drivers/scsi/qla2xxx/qla_bsg.c +++ b/drivers/scsi/qla2xxx/qla_bsg.c @@ -264,6 +264,10 @@ qla2x00_process_els(struct bsg_job *bsg_job) if (bsg_request->msgcode == FC_BSG_RPT_ELS) { rport = fc_bsg_to_rport(bsg_job); + if (!rport) { + rval = -ENOMEM; + goto done; + } fcport = *(fc_port_t **) rport->dd_data; host = rport_to_shost(rport); vha = shost_priv(host);