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Date: Thu, 12 May 2022 18:13:07 -0700 From: syzbot <syzbot+8ed8fc4c57e9dcf23ca6@...kaller.appspotmail.com> To: davem@...emloft.net, edumazet@...gle.com, geliang.tang@...e.com, jhs@...atatu.com, jiri@...nulli.us, kuba@...nel.org, linux-kernel@...r.kernel.org, mathew.j.martineau@...ux.intel.com, netdev@...r.kernel.org, pabeni@...hat.com, syzkaller-bugs@...glegroups.com, xiyou.wangcong@...il.com Subject: Re: [syzbot] UBSAN: shift-out-of-bounds in tcf_pedit_init syzbot has bisected this issue to: commit 8b796475fd7882663a870456466a4fb315cc1bd6 Author: Paolo Abeni <pabeni@...hat.com> Date: Tue May 10 14:57:34 2022 +0000 net/sched: act_pedit: really ensure the skb is writable bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=158d3969f00000 start commit: 810c2f0a3f86 mlxsw: Avoid warning during ip6gre device rem.. git tree: net final oops: https://syzkaller.appspot.com/x/report.txt?x=178d3969f00000 console output: https://syzkaller.appspot.com/x/log.txt?x=138d3969f00000 kernel config: https://syzkaller.appspot.com/x/.config?x=331feb185f8828e0 dashboard link: https://syzkaller.appspot.com/bug?extid=8ed8fc4c57e9dcf23ca6 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=104e9749f00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15f913b9f00000 Reported-by: syzbot+8ed8fc4c57e9dcf23ca6@...kaller.appspotmail.com Fixes: 8b796475fd78 ("net/sched: act_pedit: really ensure the skb is writable") For information about bisection process see: https://goo.gl/tpsmEJ#bisection
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