Re: [syzbot] KMSAN: uninit-value in ax88772a_hw_reset

[Pavel Skripkin]

On 11/22/21 18:12, syzbot wrote:
> Hello,
>
> syzbot found the following issue on:
>
> HEAD commit:    412af9cd936d ioremap.c: move an #include around
> git tree:       https://github.com/google/kmsan.git master
> console output: https://syzkaller.appspot.com/x/log.txt?x=136fb126b00000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=2d142cdf4204061
> dashboard link: https://syzkaller.appspot.com/bug?extid=8d179821571093c5f928
> compiler:       clang version 14.0.0 (git@xxxxxxxxxx:llvm/llvm-project.git 0996585c8e3b3d409494eb5f1cad714b9e1f7fb5), GNU ld (GNU Binutils for Debian) 2.35.2
>
> Unfortunately, I don't have any reproducer for this issue yet.
>
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+8d179821571093c5f928@xxxxxxxxxxxxxxxxxxxxxxxxx
>
> asix 4-1:0.0 (unnamed net_device) (uninitialized): Failed to enable software MII access
> asix 4-1:0.0 (unnamed net_device) (uninitialized): Failed to read reg index 0x0000: -71
> asix 4-1:0.0 (unnamed net_device) (uninitialized): Failed to read reg index 0x0016: -71
> asix 4-1:0.0 (unnamed net_device) (uninitialized): Failed to write reg index 0x0000: -71
> asix 4-1:0.0 (unnamed net_device) (uninitialized): Failed to enable hardware MII access


#syz fix: asix: fix uninit-value in asix_mdio_read()


With regards,
Pavel Skripkin