diff options
| author | Dan Carpenter <dan.carpenter@oracle.com> | 2017-08-17 10:09:54 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-09-27 14:39:22 +0200 |
| commit | c6b9a2007c92cc0bcf2b947ed369fffe1652197e (patch) | |
| tree | a507d08eb09e03d0138ed0556f226f28375e7604 | |
| parent | 2b2d86b0d43dd46dce468de308899d488e91fb30 (diff) | |
scsi: sg: off by one in sg_ioctl()
commit bd46fc406b30d1db1aff8dabaff8d18bb423fdcf upstream.
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@oracle.com>
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/scsi/sg.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c index 53e5efcc7857..b7181f390876 100644 --- a/drivers/scsi/sg.c +++ b/drivers/scsi/sg.c @@ -1031,7 +1031,7 @@ 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; |