Re: [syzbot] BUG: corrupted list in efivar_entry_remove

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syzbot

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Dec 8, 2023, 10:24:28 AM12/8/23
to ar...@kernel.org, ar...@kernel.org, linu...@vger.kernel.org, linux-...@vger.kernel.org, syzkall...@googlegroups.com
> On Fri, 26 Aug 2022 at 13:10, syzbot
> <syzbot+1902c3...@syzkaller.appspotmail.com> wrote:
>>
>> Hello,
>>
>> syzbot found the following issue on:
>>
>> HEAD commit: 680fb5b009e8 Merge tag 'arm64-upstream' into for-kernelci
>> git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci
>> console output: https://syzkaller.appspot.com/x/log.txt?x=126f0865080000
>> kernel config: https://syzkaller.appspot.com/x/.config?x=4557ad2600fc45f4
>> dashboard link: https://syzkaller.appspot.com/bug?extid=1902c359bfcaf39c46f2
>> compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2
>> userspace arch: arm64
>> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10039fc3080000
>> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16f4ebc3080000
>>
>> IMPORTANT: if you fix the issue, please add the following tag to the commit:
>> Reported-by: syzbot+1902c3...@syzkaller.appspotmail.com
>
> #syz test git://git.kernel.org/pub/scm/linux/kernel/git/ardb/linux.git

want either no args or 2 args (repo, branch), got 1

> efivarfs-list-corruption-fix

Aleksandr Nogikh

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Dec 8, 2023, 10:38:54 AM12/8/23
to syzbot, ar...@kernel.org, linu...@vger.kernel.org, linux-...@vger.kernel.org, syzkall...@googlegroups.com
If a command spans over two lines, syzbot expects a colon.

#syz test: git://git.kernel.org/pub/scm/linux/kernel/git/ardb/linux.git
efivarfs-list-corruption-fix
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Ard Biesheuvel

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Dec 8, 2023, 10:40:16 AM12/8/23
to Aleksandr Nogikh, syzbot, linu...@vger.kernel.org, linux-...@vger.kernel.org, syzkall...@googlegroups.com
On Fri, 8 Dec 2023 at 16:38, Aleksandr Nogikh <nog...@google.com> wrote:
>
> If a command spans over two lines, syzbot expects a colon.
>
> #syz test: git://git.kernel.org/pub/scm/linux/kernel/git/ardb/linux.git
> efivarfs-list-corruption-fix
>

It is Gmail that is breaking the line here

syzbot

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Dec 8, 2023, 10:40:19 AM12/8/23
to ar...@kernel.org, ar...@kernel.org, linu...@vger.kernel.org, linux-...@vger.kernel.org, nog...@google.com, syzkall...@googlegroups.com
"git://git.kernel.org/pub/scm/linux/kernel/git/ardb/linux.git:" does not look like a valid git repo address.

> efivarfs-list-corruption-fix

syzbot

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Dec 8, 2023, 11:25:06 AM12/8/23
to ar...@kernel.org, linu...@vger.kernel.org, linux-...@vger.kernel.org, nog...@google.com, syzkall...@googlegroups.com
Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-and-tested-by: syzbot+1902c3...@syzkaller.appspotmail.com

Tested on:

commit: ecbfc830 efivarfs: Move efivarfs list into superblock ..
git tree: git://git.kernel.org/pub/scm/linux/kernel/git/ardb/linux.git efivarfs-list-corruption-fix
console output: https://syzkaller.appspot.com/x/log.txt?x=147a4fcae80000
kernel config: https://syzkaller.appspot.com/x/.config?x=f62dd67b72f86455
dashboard link: https://syzkaller.appspot.com/bug?extid=1902c359bfcaf39c46f2
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
userspace arch: arm64

Note: no patches were applied.
Note: testing is done by a robot and is best-effort only.
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