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| author | Pavel Skripkin <paskripkin@gmail.com> | 2021-12-30 23:47:50 +0100 |
|---|---|---|
| committer | Wolfram Sang <wsa@kernel.org> | 2021-12-31 14:28:22 +0100 |
| commit | bb436283e25aaf1533ce061605d23a9564447bdf (patch) | |
| tree | e8680ff3596ee9b7f53dc4fbcaeca7d40d98ab07 /Documentation/locking | |
| parent | Linux 5.16-rc7 (diff) | |
| download | linux-bb436283e25aaf1533ce061605d23a9564447bdf.tar.xz linux-bb436283e25aaf1533ce061605d23a9564447bdf.zip | |
i2c: validate user data in compat ioctl
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>
Diffstat (limited to 'Documentation/locking')
0 files changed, 0 insertions, 0 deletions