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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Li Bin <huawei.libin@huawei.com>,
	Douglas Gilbert <dgilbert@interlog.com>,
	"Martin K . Petersen" <martin.petersen@oracle.com>,
	Sasha Levin <sashal@kernel.org>,
	linux-scsi@vger.kernel.org
Subject: [PATCH AUTOSEL 4.9 05/13] scsi: sg: add sg_remove_request in sg_common_write
Date: Fri, 24 Apr 2020 08:24:38 -0400	[thread overview]
Message-ID: <20200424122447.10882-5-sashal@kernel.org> (raw)
In-Reply-To: <20200424122447.10882-1-sashal@kernel.org>

From: Li Bin <huawei.libin@huawei.com>

[ Upstream commit 849f8583e955dbe3a1806e03ecacd5e71cce0a08 ]

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@huawei.com
Fixes: f930c7043663 ("scsi: sg: only check for dxfer_len greater than 256M")
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Li Bin <huawei.libin@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/sg.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index 8d9b416399f92..c924df5538ddc 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -809,8 +809,10 @@ sg_common_write(Sg_fd * sfp, Sg_request * srp,
 			"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) {
-- 
2.20.1


  parent reply	other threads:[~2020-04-24 12:26 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-24 12:24 [PATCH AUTOSEL 4.9 01/13] xfs: fix partially uninitialized structure in xfs_reflink_remap_extent Sasha Levin
2020-04-24 12:24 ` [PATCH AUTOSEL 4.9 02/13] ALSA: hda: Don't release card at firmware loading error Sasha Levin
2020-04-24 12:24 ` [PATCH AUTOSEL 4.9 03/13] ALSA: hda: Keep the controller initialization even if no codecs found Sasha Levin
2020-04-24 12:24   ` Sasha Levin
2020-04-24 12:45   ` Takashi Iwai
2020-04-24 12:45     ` Takashi Iwai
2020-05-01  0:56     ` Sasha Levin
2020-05-01  0:56       ` Sasha Levin
2020-04-24 12:24 ` [PATCH AUTOSEL 4.9 04/13] scsi: target: fix PR IN / READ FULL STATUS for FC Sasha Levin
2020-04-24 12:24   ` Sasha Levin
2020-04-24 12:24 ` Sasha Levin [this message]
2020-04-24 12:24 ` [PATCH AUTOSEL 4.9 06/13] objtool: Fix CONFIG_UBSAN_TRAP unreachable warnings Sasha Levin
2020-04-24 12:24 ` [PATCH AUTOSEL 4.9 07/13] objtool: Support Clang non-section symbols in ORC dump Sasha Levin
2020-04-24 12:24 ` [PATCH AUTOSEL 4.9 08/13] objtool: Fix switch table detection in .text.unlikely Sasha Levin
2020-04-24 12:24 ` [PATCH AUTOSEL 4.9 09/13] xen/xenbus: ensure xenbus_map_ring_valloc() returns proper grant status Sasha Levin
2020-04-24 12:24   ` Sasha Levin
2020-04-24 12:24 ` [PATCH AUTOSEL 4.9 10/13] net/cxgb4: Check the return from t4_query_params properly Sasha Levin
2020-04-24 12:24 ` [PATCH AUTOSEL 4.9 11/13] ext4: convert BUG_ON's to WARN_ON's in mballoc.c Sasha Levin
2020-04-24 12:24 ` [PATCH AUTOSEL 4.9 12/13] of: unittest: kmemleak on changeset destroy Sasha Levin
2020-04-24 12:24 ` [PATCH AUTOSEL 4.9 13/13] hwmon: (jc42) Fix name to have no illegal characters Sasha Levin

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