Re: [PATCH] scsi: sg: off by one in sg_ioctl()

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 2017-08-17 03:09 AM, Dan Carpenter wrote:
If "val" is SG_MAX_QUEUE then we are one element beyond the end of the
"rinfo" array so the > should be >=.

Fixes: 109bade9c625 ("scsi: sg: use standard lists for sg_requests")
Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
Acked-by: Douglas Gilbert <dgilbert@xxxxxxxxxxxx>

Thanks.


diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index d7ff71e0c85c..84e782d8e7c3 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -1021,7 +1021,7 @@ sg_ioctl(struct file *filp, unsigned int cmd_in, unsigned long arg)
  			read_lock_irqsave(&sfp->rq_list_lock, iflags);
  			val = 0;
  			list_for_each_entry(srp, &sfp->rq_list, entry) {
-				if (val > SG_MAX_QUEUE)
+				if (val >= SG_MAX_QUEUE)
  					break;
  				memset(&rinfo[val], 0, SZ_SG_REQ_INFO);
  				rinfo[val].req_state = srp->done + 1;





[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [SCSI Target Devel]     [Linux SCSI Target Infrastructure]     [Kernel Newbies]     [IDE]     [Security]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux ATA RAID]     [Linux IIO]     [Samba]     [Device Mapper]

  Powered by Linux