4.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Ben Hutchings <ben.hutchings@xxxxxxxxxxxxxxx>
commit 587c3c9f286cee5c9cac38d28c8ae1875f4ec85b upstream.
Commit 109bade9c625 ("scsi: sg: use standard lists for sg_requests")
introduced an off-by-one error in sg_ioctl(), which was fixed by commit
bd46fc406b30 ("scsi: sg: off by one in sg_ioctl()").
Unfortunately commit 4759df905a47 ("scsi: sg: factor out
sg_fill_request_table()") moved that code, and reintroduced the
bug (perhaps due to a botched rebase). Fix it again.
Fixes: 4759df905a47 ("scsi: sg: factor out sg_fill_request_table()")
Signed-off-by: Ben Hutchings <ben.hutchings@xxxxxxxxxxxxxxx>
Acked-by: Douglas Gilbert <dgilbert@xxxxxxxxxxxx>
Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/scsi/sg.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -848,7 +848,7 @@ sg_fill_request_table(Sg_fd *sfp, sg_req
val = 0;
list_for_each_entry(srp, &sfp->rq_list, entry) {
- if (val > SG_MAX_QUEUE)
+ if (val >= SG_MAX_QUEUE)
break;
rinfo[val].req_state = srp->done + 1;
rinfo[val].problem =