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linux/drivers/media/usb
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Hans Verkuil 4843a543fa media: gspca: zero usb_buf on error 
If reg_r() fails, then gspca_dev->usb_buf was left uninitialized,
and some drivers used the contents of that buffer in logic.

This caused several syzbot errors:

https://syzkaller.appspot.com/bug?extid=397fd082ce5143e2f67d
https://syzkaller.appspot.com/bug?extid=1a35278dd0ebfb3a038a
https://syzkaller.appspot.com/bug?extid=06ddf1788cfd048c5e82

I analyzed the gspca drivers and zeroed the buffer where needed.

Reported-and-tested-by: syzbot+1a35278dd0ebfb3a038a@syzkaller.appspotmail.com
Reported-and-tested-by: syzbot+397fd082ce5143e2f67d@syzkaller.appspotmail.com
Reported-and-tested-by: syzbot+06ddf1788cfd048c5e82@syzkaller.appspotmail.com

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
 		2019-08-19 12:10:47 -03:00
..
airspy media: media/usb: don't set description in ENUM_FMT 2019-07-22 14:01:05 -04:00
as102 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 118 2019-05-24 17:39:02 +02:00
au0828 media: drivers/media: don't set pix->priv = 0 2019-07-23 08:48:33 -04:00
b2c2 treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
cpia2 media: drivers/media: don't set pix->priv = 0 2019-07-23 08:48:33 -04:00
cx231xx media: Fix various misspellings of disconnected 2019-08-19 12:02:28 -03:00
dvb-usb media: don't drop front-end reference count for ->detach 2019-08-04 06:33:11 -03:00
dvb-usb-v2 media: dvbsky: add support for Mygica T230C v2 2019-07-22 15:33:30 -04:00
em28xx media: Fix various misspellings of disconnected 2019-08-19 12:02:28 -03:00
go7007 media: usb: go7007: s2250-board: convert to i2c_new_dummy_device 2019-08-13 11:46:13 -03:00
gspca media: gspca: zero usb_buf on error 2019-08-19 12:10:47 -03:00
hackrf Linux 5.2-rc4 2019-06-11 12:09:28 -04:00
hdpvr media: hdpvr: add terminating 0 at end of string 2019-08-19 12:08:45 -03:00
msi2500 media: media/usb: don't set description in ENUM_FMT 2019-07-22 14:01:05 -04:00
pulse8-cec treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 55 2019-05-24 17:36:42 +02:00
pvrusb2 media: pvrusb2: use kzalloc instead of kmalloc and memset 2019-08-13 11:48:57 -03:00
pwc media: media/usb: don't set description in ENUM_FMT 2019-07-22 14:01:05 -04:00
rainshadow-cec treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 55 2019-05-24 17:36:42 +02:00
s2255 media: drivers/media: don't set pix->priv = 0 2019-07-23 08:48:33 -04:00
siano USB fixes for 5.2-rc3 2019-05-31 08:16:31 -07:00
stk1160 media: media/usb: don't set description in ENUM_FMT 2019-07-22 14:01:05 -04:00
stkwebcam media: media/usb: don't set description in ENUM_FMT 2019-07-22 14:01:05 -04:00
tm6000 media: Fix various misspellings of disconnected 2019-08-19 12:02:28 -03:00
ttusb-budget treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
ttusb-dec treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 157 2019-05-30 11:26:37 -07:00
usbtv media: media/usb: don't set description in ENUM_FMT 2019-07-22 14:01:05 -04:00
usbvision media: media/usb: don't set description in ENUM_FMT 2019-07-22 14:01:05 -04:00
uvc media: drivers/media: don't set pix->priv = 0 2019-07-23 08:48:33 -04:00
zr364xx media: media/usb: Use kmemdup rather than duplicating its implementation 2019-08-14 05:02:43 -03:00
Kconfig treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00