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| author | Pavel Skripkin <paskripkin@gmail.com> | 2021-12-31 01:47:50 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-01-05 12:40:32 +0100 |
| commit | 8d31cbab4c295d7010ebb729e9d02d0e9cece18f (patch) | |
| tree | 986967125e1fc1b1eadd83374f2fb3f63c98ee3b /include/uapi | |
| parent | 51c94d8fbd09fe314baac7d49d7173e56e0df048 (diff) | |
i2c: validate user data in compat ioctl
[ Upstream commit bb436283e25aaf1533ce061605d23a9564447bdf ]
Wrong user data may cause warning in i2c_transfer(), ex: zero msgs.
Userspace should not be able to trigger warnings, so this patch adds
validation checks for user data in compact ioctl to prevent reported
warnings
Reported-and-tested-by: syzbot+e417648b303855b91d8a@syzkaller.appspotmail.com
Fixes: 7d5cb45655f2 ("i2c compat ioctls: move to ->compat_ioctl()")
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include/uapi')
0 files changed, 0 insertions, 0 deletions