From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f72.google.com (mail-io1-f72.google.com [209.85.166.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 984BC4428 for ; Tue, 16 Jul 2024 01:23:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.72 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721093002; cv=none; b=ddp8TpWUsp71Esf/DKtE4rcU7svWWSkdENXP7BziMvp2so5PXYqViFchtJqJ2Rxk5MrXnyIS8ItLNo6lT2ZDCBarNMza8Wjae0pIXJGR/NkVL79dTFEr8Tz99I5zRL92EMdPamA/VGWT9h6/XqTkjdyECioQ4JD/sjMgGpvhn08= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1721093002; c=relaxed/simple; bh=fnxTyEqfqdQiYt2zAm7DIjm4KB8FKt0/kFs8ODxb9sQ=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=ks0cLThU99KL/OxIsjkMY2azSoMRpK5553pd2HMHTekQx9qd12CAlGGFq2W1BJieltDAe8OtdHUfhApBYc1y+LfXIAMc2L1NivJbadaMKs10+kxHmgVpppwjFRzWXzVNCa+xqbC9MuGc/wvWVW0thazmi7RpVfUrGYTaAq5m2LU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.72 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-io1-f72.google.com with SMTP id ca18e2360f4ac-7f61da4d7beso591154639f.2 for ; Mon, 15 Jul 2024 18:23:20 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1721093000; x=1721697800; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=VX5ie3LpoTnCmaAoYfXKDiRh9qsGBUI3lTqEmo+rDn8=; b=ImsJow7g+2yPKPU3ag0UVUPh1MV5KwWAb4LJE4tfFOetkLt0wvPcdlmtrqwdbA8I0Y YjIumX2mmadDJ3eq4IIzuDjsPTswHZn6XnxGU8/azNFphL/gX5yrDcR2eu1amg9RVa+B 2OU/ghi9vP2w2lL8EbopffcxNQbO+uwln4bqxkq8gXhD/pfY2u+1niu5+XNFMlrY6xwH B6mHpMONhwmJs1VLJpc3DdcT0DGo96McfhZEHB1QqR4y2CxJ8/Rr4edeKvOe6Bo9prYr s4JqY3uFk1MOLMwTfQDsEmdWDo4xA6t4s1n5fXgJLLP/Fxj51cmkCbCWdHYlIE6NlkwN gEvg== X-Forwarded-Encrypted: i=1; AJvYcCXqK6mw9gtRjH067DORCEZNrqx0LHVb1j7toKqJi/stIHGKWdGYeBXeUkbJR2+L9wqQX1apRX9Wn/8ra/7aBi3yrbLv0Oh1 X-Gm-Message-State: AOJu0Yypw7YwkFk3Srt3aH3hgE9Sh9wv2vgg8hnYlldDJLLs2XmuCp27 /XPzKzcnwr92QN0DuNTS8D9Aiqo6GUsY6P4J2k+BRiJ8gb6Z4NLnaSYHCyBgPUV5hIXBV+6tnvC 6C3CSB6AQx7QG5uUrVidc3UpgUHJOlmWdNleleclpSBBpdFQB+fLy8So= X-Google-Smtp-Source: AGHT+IECwzZhpYPm6rr51Z7VUrSfGP9/xHHw2aKwZ9MdX/g8msw9lbJ1P6V/CNEdVmRwWwktYQjVO1QpJcX6zaOvAiO0QvJ8MtDo Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6638:3006:b0:4c0:a8a5:81cc with SMTP id 8926c6da1cb9f-4c20484b512mr56051173.3.1721092999825; Mon, 15 Jul 2024 18:23:19 -0700 (PDT) Date: Mon, 15 Jul 2024 18:23:19 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000e1609a061d5330ce@google.com> Subject: [syzbot] [net?] WARNING in skb_warn_bad_offload (5) From: syzbot To: davem@davemloft.net, dsahern@kernel.org, edumazet@google.com, jakub@cloudflare.com, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, pabeni@redhat.com, soheil@google.com, syzkaller-bugs@googlegroups.com, willemb@google.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 80ab5445da62 Merge tag 'wireless-next-2024-07-11' of git:/.. git tree: net-next console+strace: https://syzkaller.appspot.com/x/log.txt?x=175fb821980000 kernel config: https://syzkaller.appspot.com/x/.config?x=2dbcdd8641c4638f dashboard link: https://syzkaller.appspot.com/bug?extid=e15b7e15b8a751a91d9a compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=172bf566980000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12fff535980000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/184da3869c30/disk-80ab5445.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/85bfe9b60f21/vmlinux-80ab5445.xz kernel image: https://storage.googleapis.com/syzbot-assets/06064623a948/bzImage-80ab5445.xz The issue was bisected to: commit 10154dbded6d6a2fecaebdfda206609de0f121a9 Author: Jakub Sitnicki Date: Wed Jun 26 17:51:26 2024 +0000 udp: Allow GSO transmit from devices with no checksum offload bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=142ccbed980000 final oops: https://syzkaller.appspot.com/x/report.txt?x=162ccbed980000 console output: https://syzkaller.appspot.com/x/log.txt?x=122ccbed980000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+e15b7e15b8a751a91d9a@syzkaller.appspotmail.com Fixes: 10154dbded6d ("udp: Allow GSO transmit from devices with no checksum offload") skb frag: 00000080: 62 3f 77 e4 0e 82 0d 2f 85 cc 44 ea 25 5a 99 76 skb frag: 00000090: f2 53 ------------[ cut here ]------------ ip6tnl0: caps=(0x00000006401d7869, 0x00000006401d7869) WARNING: CPU: 0 PID: 5112 at net/core/dev.c:3293 skb_warn_bad_offload+0x166/0x1a0 net/core/dev.c:3291 Modules linked in: CPU: 0 PID: 5112 Comm: syz-executor391 Not tainted 6.10.0-rc7-syzkaller-01603-g80ab5445da62 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 RIP: 0010:skb_warn_bad_offload+0x166/0x1a0 net/core/dev.c:3291 Code: e8 5f 94 a3 f8 49 8b 04 24 48 8d 88 a0 03 00 00 48 85 c0 48 0f 44 cd 48 c7 c7 00 cc c5 8c 4c 89 f6 48 89 da e8 fb 92 ff f7 90 <0f> 0b 90 90 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc 44 89 f9 RSP: 0018:ffffc900034bedc8 EFLAGS: 00010246 RAX: 7d287cad4185da00 RBX: ffff888040cdc0b8 RCX: ffff888023d1bc00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffffff8cc5cbc0 R08: ffffffff815857b2 R09: fffffbfff1c39994 R10: dffffc0000000000 R11: fffffbfff1c39994 R12: ffff888022880518 R13: dffffc0000000000 R14: ffff888040cdc130 R15: ffff888040cdc130 FS: 000055556e9e9380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020001180 CR3: 000000007c876000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __skb_gso_segment+0x3be/0x4c0 net/core/gso.c:127 skb_gso_segment include/net/gso.h:83 [inline] validate_xmit_skb+0x585/0x1120 net/core/dev.c:3661 __dev_queue_xmit+0x17a4/0x3e90 net/core/dev.c:4415 neigh_output include/net/neighbour.h:542 [inline] ip6_finish_output2+0xffa/0x1680 net/ipv6/ip6_output.c:137 ip6_finish_output+0x41e/0x810 net/ipv6/ip6_output.c:222 ip6_send_skb+0x112/0x230 net/ipv6/ip6_output.c:1958 udp_v6_send_skb+0xbf5/0x1870 net/ipv6/udp.c:1292 udpv6_sendmsg+0x23b3/0x3270 net/ipv6/udp.c:1588 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0xef/0x270 net/socket.c:745 ____sys_sendmsg+0x525/0x7d0 net/socket.c:2585 ___sys_sendmsg net/socket.c:2639 [inline] __sys_sendmmsg+0x3b2/0x740 net/socket.c:2725 __do_sys_sendmmsg net/socket.c:2754 [inline] __se_sys_sendmmsg net/socket.c:2751 [inline] __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2751 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f04f688fe89 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 01 1a 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffeebc526e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f04f688fe89 RDX: 0000000000000001 RSI: 0000000020003cc0 RDI: 0000000000000003 RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffeebc52740 R13: 00007f04f68dd406 R14: 0000000000000003 R15: 00007ffeebc52720 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. For information about bisection process see: https://goo.gl/tpsmEJ#bisection If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup