From: Phong Tran <tranmanphong@xxxxxxxxx> Date: Thu, 7 Nov 2019 07:44:04 +0700 > The local variables use without initilization value. > This fixes the syzbot report. > > Reported-by: syzbot+7dc7c28d4577bbe55b10@xxxxxxxxxxxxxxxxxxxxxxxxx > > Test result: > > https://groups.google.com/d/msg/syzkaller-bugs/3H_n05x_sPU/sUoHhxgAAgAJ > > Signed-off-by: Phong Tran <tranmanphong@xxxxxxxxx> There are several more situations in this file where the data blob passed to asix_read_cmd() is read without pre-initialization not checking the return value from asix_read_cmd(). So, syzbot can see some of them but not all of them, yet all of them are buggy and should be fixed. These kinds of patches drive me absolutely crazy :-) Really, one of two things needs to happen, either asix_read_cmd() clears the incoming buffer unconditionally, or these call sites strictly must check the return value always before accessing the buffer after the call. I'm not applying this, sorry.
