From: Eric Dumazet
Date: Wed, 2 Jan 2019 09:20:27 -0800
> Since capi_ioctl() copies 64 bytes after calling
> capi20_get_manufacturer() we need to ensure to not leak
> information to user.
...
> Signed-off-by: Eric Dumazet
> Reported-by: syzbot
> Cc: Karsten Keil
Applied and queued up for -st
Since capi_ioctl() copies 64 bytes after calling
capi20_get_manufacturer() we need to ensure to not leak
information to user.
BUG: KMSAN: kernel-infoleak in _copy_to_user+0x16b/0x1f0 lib/usercopy.c:32
CPU: 0 PID: 11245 Comm: syz-executor633 Not tainted 4.20.0-rc7+ #2
Hardware name: Google Google C
