diff options
| author | Hans Verkuil <hverkuil-cisco@xs4all.nl> | 2021-03-11 15:46:40 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-05-12 08:37:22 +0200 |
| commit | cf9ad24ac82dcac248924865fedec22b05f1140f (patch) | |
| tree | 832725294ec47b35baf30a1c4fcf30b8f119b018 | |
| parent | 22d384052a6abe6637808672c79a3868f60e29b9 (diff) | |
media: gspca/sq905.c: fix uninitialized variable
[ Upstream commit eaaea4681984c79d2b2b160387b297477f0c1aab ]
act_len can be uninitialized if usb_bulk_msg() returns an error.
Set it to 0 to avoid a KMSAN error.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Reported-by: syzbot+a4e309017a5f3a24c7b3@syzkaller.appspotmail.com
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/media/usb/gspca/sq905.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/media/usb/gspca/sq905.c b/drivers/media/usb/gspca/sq905.c index 97799cfb832e3..9491110709718 100644 --- a/drivers/media/usb/gspca/sq905.c +++ b/drivers/media/usb/gspca/sq905.c @@ -158,7 +158,7 @@ static int sq905_read_data(struct gspca_dev *gspca_dev, u8 *data, int size, int need_lock) { int ret; - int act_len; + int act_len = 0; gspca_dev->usb_buf[0] = '\0'; if (need_lock) |