This is a note to let you know that I've just added the patch titled
scsi: sg: add sg_remove_request in sg_common_write
to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
scsi-sg-add-sg_remove_request-in-sg_common_write.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 849f8583e955dbe3a1806e03ecacd5e71cce0a08 Mon Sep 17 00:00:00 2001
From: Li Bin <huawei.libin@xxxxxxxxxx>
Date: Mon, 13 Apr 2020 19:29:21 +0800
Subject: scsi: sg: add sg_remove_request in sg_common_write
From: Li Bin <huawei.libin@xxxxxxxxxx>
commit 849f8583e955dbe3a1806e03ecacd5e71cce0a08 upstream.
If the dxfer_len is greater than 256M then the request is invalid and we
need to call sg_remove_request in sg_common_write.
Link: https://lore.kernel.org/r/1586777361-17339-1-git-send-email-huawei.libin@xxxxxxxxxx
Fixes: f930c7043663 ("scsi: sg: only check for dxfer_len greater than 256M")
Acked-by: Douglas Gilbert <dgilbert@xxxxxxxxxxxx>
Signed-off-by: Li Bin <huawei.libin@xxxxxxxxxx>
Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/scsi/sg.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -809,8 +809,10 @@ sg_common_write(Sg_fd * sfp, Sg_request
"sg_common_write: scsi opcode=0x%02x, cmd_size=%d\n",
(int) cmnd[0], (int) hp->cmd_len));
- if (hp->dxfer_len >= SZ_256M)
+ if (hp->dxfer_len >= SZ_256M) {
+ sg_remove_request(sfp, srp);
return -EINVAL;
+ }
k = sg_start_req(srp, cmnd);
if (k) {
Patches currently in stable-queue which might be from huawei.libin@xxxxxxxxxx are
queue-4.9/scsi-sg-add-sg_remove_request-in-sg_common_write.patch
