diff options
| author | Rajeshwar R Shinde | 2023-08-30 13:14:01 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2023-11-28 17:07:02 +0000 |
| commit | a647f27a7426d2fe1b40da7c8fa2b81354a51177 (patch) | |
| tree | c23d1dbc3d052937b5a501d8fa451b9503cae553 /drivers/media/spi | |
| parent | e64d23dc65810be4e3395d72df0c398f60c991f9 (diff) | |
media: gspca: cpia1: shift-out-of-bounds in set_flicker
[ Upstream commit 099be1822d1f095433f4b08af9cc9d6308ec1953 ]
Syzkaller reported the following issue:
UBSAN: shift-out-of-bounds in drivers/media/usb/gspca/cpia1.c:1031:27
shift exponent 245 is too large for 32-bit type 'int'
When the value of the variable "sd->params.exposure.gain" exceeds the
number of bits in an integer, a shift-out-of-bounds error is reported. It
is triggered because the variable "currentexp" cannot be left-shifted by
more than the number of bits in an integer. In order to avoid invalid
range during left-shift, the conditional expression is added.
Reported-by: syzbot+e27f3dbdab04e43b9f73@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/all/20230818164522.12806-1-coolrrsh@gmail.com
Link: https://syzkaller.appspot.com/bug?extid=e27f3dbdab04e43b9f73
Signed-off-by: Rajeshwar R Shinde <coolrrsh@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/media/spi')
0 files changed, 0 insertions, 0 deletions