On 11/8/19 6:21 AM, David Miller wrote:
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,
thank you for your suggestion.
Sent Patch v2 reply-to this mail thread.
regards,
Phong.
