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Date: Wed, 2 Feb 2022 13:20:30 +0100
From: Daniel Borkmann <daniel@...earbox.net>
To: syzbot <syzbot+5ad567a418794b9b5983@...kaller.appspotmail.com>,
andrii@...nel.org, ast@...nel.org, bpf@...r.kernel.org,
davem@...emloft.net, hotforest@...il.com, houtao1@...wei.com,
john.fastabend@...il.com, kafai@...com, kpsingh@...nel.org,
kuba@...nel.org, linux-kernel@...r.kernel.org,
netdev@...r.kernel.org, songliubraving@...com,
syzkaller-bugs@...glegroups.com, yhs@...com
Subject: Re: [syzbot] KASAN: vmalloc-out-of-bounds Write in ringbuf_map_alloc
On 2/2/22 1:11 PM, syzbot wrote:
> syzbot has found a reproducer for the following issue on:
>
> HEAD commit: 6abab1b81b65 Add linux-next specific files for 20220202
> git tree: linux-next
> console output: https://syzkaller.appspot.com/x/log.txt?x=13f4b900700000
> kernel config: https://syzkaller.appspot.com/x/.config?x=b8d8750556896349
> dashboard link: https://syzkaller.appspot.com/bug?extid=5ad567a418794b9b5983
> compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1450d9f0700000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=130ef35bb00000
>
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+5ad567a418794b9b5983@...kaller.appspotmail.com
#syz test: git://git.kernel.org/pub/scm/linux/kernel/git/dborkman/bpf.git pr/rb-vmap
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