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Date: Wed, 12 Oct 2022 15:54:59 +0200 From: Dmitry Vyukov <dvyukov@...gle.com> To: Jiri Pirko <jiri@...nulli.us> Cc: syzbot <syzbot+60748c96cf5c6df8e581@...kaller.appspotmail.com>, davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org, linux-kernel@...r.kernel.org, netdev@...r.kernel.org, pabeni@...hat.com, syzkaller-bugs@...glegroups.com Subject: Re: [syzbot] kernel panic: kernel stack overflow On Wed, 12 Oct 2022 at 15:11, Jiri Pirko <jiri@...nulli.us> wrote: > > Wed, Oct 12, 2022 at 09:53:27AM CEST, dvyukov@...gle.com wrote: > >On Wed, 12 Oct 2022 at 09:48, syzbot > ><syzbot+60748c96cf5c6df8e581@...kaller.appspotmail.com> wrote: > >> > >> Hello, > >> > >> syzbot found the following issue on: > >> > >> HEAD commit: bbed346d5a96 Merge branch 'for-next/core' 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=14a03a2a880000 > >> kernel config: https://syzkaller.appspot.com/x/.config?x=aae2d21e7dd80684 > >> dashboard link: https://syzkaller.appspot.com/bug?extid=60748c96cf5c6df8e581 > >> 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 > >> > >> Unfortunately, I don't have any reproducer for this issue yet. > >> > >> Downloadable assets: > >> disk image: https://storage.googleapis.com/syzbot-assets/11078f50b80b/disk-bbed346d.raw.xz > >> vmlinux: https://storage.googleapis.com/syzbot-assets/398e5f1e6c84/vmlinux-bbed346d.xz > >> > >> IMPORTANT: if you fix the issue, please add the following tag to the commit: > >> Reported-by: syzbot+60748c96cf5c6df8e581@...kaller.appspotmail.com > > > >+Jiri > > > >It looks like the issue is with the team device. It seems to call > >itself infinitely. > >team_device_event was mentioned in stack overflow bugs in the past: > >https://groups.google.com/g/syzkaller-bugs/search?q=%22team_device_event%22 > > Hi, do you have dmesg output available by any chance? Hi Jiri, syzbot attaches dmesg output to every report under the "console output" link.
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