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From: Hans Verkuil <hverkuil-cisco@xs4all.nl>
To: linux-media@vger.kernel.org
Cc: Hans Verkuil <hverkuil-cisco@xs4all.nl>,
	syzbot+9d42b7773d2fecd983ab@syzkaller.appspotmail.com,
	Sean Young <sean@mess.org>
Subject: [PATCH 2/5] dvb-usb/af9005: initialize act_len
Date: Tue, 12 Nov 2019 10:22:25 +0100	[thread overview]
Message-ID: <20191112092228.15800-3-hverkuil-cisco@xs4all.nl> (raw)
In-Reply-To: <20191112092228.15800-1-hverkuil-cisco@xs4all.nl>

The act_len variable was uninitialized, leading to a syzbot
error.

Syzbot link:

https://syzkaller.appspot.com/bug?extid=9d42b7773d2fecd983ab

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reported-and-tested-by: syzbot+9d42b7773d2fecd983ab@syzkaller.appspotmail.com
CC: Sean Young <sean@mess.org>
---
 drivers/media/usb/dvb-usb/af9005.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/usb/dvb-usb/af9005.c b/drivers/media/usb/dvb-usb/af9005.c
index ac93e88d7038..89b4b5d84cdf 100644
--- a/drivers/media/usb/dvb-usb/af9005.c
+++ b/drivers/media/usb/dvb-usb/af9005.c
@@ -554,7 +554,7 @@ static int af9005_boot_packet(struct usb_device *udev, int type, u8 *reply,
 			      u8 *buf, int size)
 {
 	u16 checksum;
-	int act_len, i, ret;
+	int act_len = 0, i, ret;
 
 	memset(buf, 0, size);
 	buf[0] = (u8) (FW_BULKOUT_SIZE & 0xff);
-- 
2.24.0


  parent reply	other threads:[~2019-11-12  9:22 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-12  9:22 [PATCH 0/5] Fix various syzbot errors Hans Verkuil
2019-11-12  9:22 ` [PATCH 1/5] gspca: zero usb_buf Hans Verkuil
2019-11-12  9:22 ` Hans Verkuil [this message]
2019-11-12  9:49   ` [PATCH 2/5] dvb-usb/af9005: initialize act_len Sean Young
2019-11-12  9:22 ` [PATCH 3/5] dvb-usb/vp7045: initialize br[] Hans Verkuil
2019-11-12  9:50   ` Sean Young
2019-11-12  9:22 ` [PATCH 4/5] dvb-usb/digitv: initialize key[] Hans Verkuil
2019-11-12  9:51   ` Sean Young
2019-11-12  9:22 ` [PATCH 5/5] dvb-usb/dvb-usb-urb.c: initialize actlen to 0 Hans Verkuil
2019-11-12  9:53   ` Sean Young

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