| Message ID | 20240401061010.589751-1-aaprelkov@usergate.com |
|---|---|
| State | New |
| Headers | show |
| Series | scsi: aic79xx: add scb NULL check in ahd_handle_msg_reject() | expand |
diff --git a/drivers/scsi/aic7xxx/aic79xx_core.c b/drivers/scsi/aic7xxx/aic79xx_core.c index 3e3100dbfda3..9e0fafa12e87 100644 --- a/drivers/scsi/aic7xxx/aic79xx_core.c +++ b/drivers/scsi/aic7xxx/aic79xx_core.c @@ -5577,7 +5577,7 @@ ahd_handle_msg_reject(struct ahd_softc *ahd, struct ahd_devinfo *devinfo) "Using asynchronous transfers\n", ahd_name(ahd), devinfo->channel, devinfo->target, devinfo->lun); - } else if ((scb->hscb->control & SIMPLE_QUEUE_TAG) != 0) { + } else if (scb && (scb->hscb->control & SIMPLE_QUEUE_TAG) != 0) { int tag_type; int mask;
If ahd_lookup_scb() returns NULL and ahd_sent_msg() checks are false, then NULL pointer dereference happens Found by Linux Verification Center (linuxtesting.org) with SVACE. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Aleksandr Aprelkov <aaprelkov@usergate.com> --- drivers/scsi/aic7xxx/aic79xx_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)