From: John Fastabend <john.fastabend@gmail.com>
To: syzbot <syzbot+8cd36f6b65f3cafd400a@syzkaller.appspotmail.com>,
andrii@kernel.org, ast@kernel.org, bpf@vger.kernel.org,
daniel@iogearbox.net, davem@davemloft.net, haoluo@google.com,
hawk@kernel.org, john.fastabend@gmail.com, jolsa@kernel.org,
kpsingh@kernel.org, kuba@kernel.org,
linux-kernel@vger.kernel.org, martin.lau@linux.dev,
netdev@vger.kernel.org, sdf@google.com, song@kernel.org,
syzkaller-bugs@googlegroups.com, yonghong.song@linux.dev
Subject: Re: [syzbot] [bpf?] [net?] BUG: unable to handle kernel NULL pointer dereference in dev_map_hash_update_elem
Date: Mon, 26 Feb 2024 13:49:15 -0800 [thread overview]
Message-ID: <65dd075bc6cbd_20e0a20892@john.notmuch> (raw)
In-Reply-To: <0000000000001d1939061240cbd7@google.com>
syzbot wrote:
> syzbot has found a reproducer for the following issue on:
>
> HEAD commit: 70ff1fe626a1 Merge tag 'docs-6.8-fixes3' of git://git.lwn...
> git tree: upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=1762045c180000
> kernel config: https://syzkaller.appspot.com/x/.config?x=4cf52b43f46d820d
> dashboard link: https://syzkaller.appspot.com/bug?extid=8cd36f6b65f3cafd400a
> compiler: arm-linux-gnueabi-gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40
> userspace arch: arm
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=110cf122180000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=142f6d8c180000
>
> Downloadable assets:
> disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/8ead8862021c/non_bootable_disk-70ff1fe6.raw.xz
> vmlinux: https://storage.googleapis.com/syzbot-assets/bc398db9fd8c/vmlinux-70ff1fe6.xz
> kernel image: https://storage.googleapis.com/syzbot-assets/6d3f8b72a671/zImage-70ff1fe6.xz
>
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+8cd36f6b65f3cafd400a@syzkaller.appspotmail.com
>
I'll take a look this week if no one beats me to it. Looks like there is
a reproducer so should be able to sort it out.
next prev parent reply other threads:[~2024-02-26 21:49 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-18 22:22 [syzbot] [net?] [bpf?] BUG: unable to handle kernel NULL pointer dereference in dev_map_hash_update_elem syzbot
2024-02-26 3:49 ` [syzbot] [bpf?] [net?] " syzbot
2024-02-26 21:49 ` John Fastabend [this message]
2024-02-27 13:50 ` Toke Høiland-Jørgensen
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