linux-kernel - Re: [syzbot] [kernel?] Internal error in should_fail

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Message-ID: <CANp29Y7ktmz=W5F+uavDa1KzSnUnBHtrH2abHRqAjuWZkJdgxw@mail.gmail.com>
Date:   Tue, 16 May 2023 19:23:30 +0200
From:   Aleksandr Nogikh <nogikh@...gle.com>
To:     Christian Brauner <brauner@...nel.org>
Cc:     syzbot <syzbot+c84b326736ee471158dc@...kaller.appspotmail.com>,
        syzbot <syzbot+729f1325904c82acd601@...kaller.appspotmail.com>,
        bpf@...r.kernel.org, linux-kernel@...r.kernel.org,
        syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [kernel?] Internal error in should_fail_ex

On Tue, May 16, 2023 at 2:32 PM Christian Brauner <brauner@...nel.org> wrote:
>
> On Tue, May 16, 2023 at 03:35:03AM -0700, syzbot wrote:
> > Hello,
> >
> > syzbot found the following issue on:
> >
> > HEAD commit:    457391b03803 Linux 6.3
> > git tree:       upstream
> > console output: https://syzkaller.appspot.com/x/log.txt?x=15671fa2280000
> > kernel config:  https://syzkaller.appspot.com/x/.config?x=385e197a58ca4afe
> > dashboard link: https://syzkaller.appspot.com/bug?extid=c84b326736ee471158dc
> > compiler:       arm-linux-gnueabi-gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
> > userspace arch: arm
> >
> > Unfortunately, I don't have any reproducer for this issue yet.
> >
> > Downloadable assets:
> > disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/c35b5b2731d2/non_bootable_disk-457391b0.raw.xz
> > vmlinux: https://storage.googleapis.com/syzbot-assets/2a1bf3bafeb6/vmlinux-457391b0.xz
> > kernel image: https://storage.googleapis.com/syzbot-assets/21f1e3b4a5a9/zImage-457391b0.xz
> >
> > IMPORTANT: if you fix the issue, please add the following tag to the commit:
> > Reported-by: syzbot+c84b326736ee471158dc@...kaller.appspotmail.com
>
> On Tue, May 16, 2023 at 03:35:02AM -0700, syzbot wrote:
> > Hello,
> >
> > syzbot found the following issue on:
> >
> > HEAD commit:    457391b03803 Linux 6.3
> > git tree:       upstream
> > console output: https://syzkaller.appspot.com/x/log.txt?x=134e0b01280000
> > kernel config:  https://syzkaller.appspot.com/x/.config?x=385e197a58ca4afe
> > dashboard link: https://syzkaller.appspot.com/bug?extid=729f1325904c82acd601
> > compiler:       arm-linux-gnueabi-gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
> > userspace arch: arm
> > syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=118f964e280000
> > C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=16f6e776280000
> >
> > Downloadable assets:
> > disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/c35b5b2731d2/non_bootable_disk-457391b0.raw.xz
> > vmlinux: https://storage.googleapis.com/syzbot-assets/2a1bf3bafeb6/vmlinux-457391b0.xz
> > kernel image: https://storage.googleapis.com/syzbot-assets/21f1e3b4a5a9/zImage-457391b0.xz
> >
> > IMPORTANT: if you fix the issue, please add the following tag to the commit:
> > Reported-by: syzbot+729f1325904c82acd601@...kaller.appspotmail.com
>
> Not complaining but why am I blessed with an explicit Cc on this?
>

You were Cc'd because syzbot incorrectly identified the guilty file
for the bug, I've sent a fix [1].
Sorry for the noise.

[1] https://github.com/google/syzkaller/pull/3905

-- 
Aleksandr