Re: [syzbot] KMSAN: uninit-value in asix_mdio_read (2)
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From: Pavel Skripkin <hidden>
Date: 2021-12-18 21:14:36
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On 12/18/21 14:07, syzbot wrote:
Hello, syzbot found the following issue on: HEAD commit: b0a8b5053e8b kmsan: core: add dependency on DEBUG_KERNEL git tree: https://github.com/google/kmsan.git master console output: https://syzkaller.appspot.com/x/log.txt?x=13a4d133b00000 kernel config: https://syzkaller.appspot.com/x/.config?x=46a956fc7a887c60 dashboard link: https://syzkaller.appspot.com/bug?extid=f44badb06036334e867a compiler: clang version 14.0.0 (/usr/local/google/src/llvm-git-monorepo 2b554920f11c8b763cd9ed9003f4e19b919b8e1f), GNU ld (GNU Binutils for Debian) 2.35.2 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=149fddcbb00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17baef25b00000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+f44badb06036334e867a@syzkaller.appspotmail.com
The last unhanded case is asix_read_cmd() == 0. Let's handle it... #syz test: https://github.com/google/kmsan.git master With regards, Pavel Skripkin