From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f207.google.com (mail-il1-f207.google.com [209.85.166.207]) (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 B80701A9B28 for ; Mon, 30 Dec 2024 16:04:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.207 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735574664; cv=none; b=O4AHE87qY4jdNs5H1QHx8AH7dQ08LK9wDIC2hPJkkHaPUnNIslOSjZZUW2dIlfcAODgemBUwhFlyatDMuKGq7iZq+GqLQeGv5vxiL4K7a+8ADsEqBT57t46lHG9/9tiklwxfg7o9ZseouRhzz2uxeGtBsVKTRhMyfyUP/SJqdGw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735574664; c=relaxed/simple; bh=YDDEY9B06kchVvoBzFd6efkgmaPSvdLvivzeaV/5JaU=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=n/RwDqWLeLgchI5CBnzH0XmM16vtKTplLOww20SoRv83oo/7hE+hz17lNvmthZvC2Nfi+nu+qAfE00oQiGnzcTIu3BufPp9WAgo0SQr0T/6316D4vu4shThRYqTbORwovwuYNu37El/TkR+s6efBC++fPs0X/N8mnGzYxHIKDZM= 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=209.85.166.207 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-il1-f207.google.com with SMTP id e9e14a558f8ab-3a814406be9so191454065ab.1 for ; Mon, 30 Dec 2024 08:04:22 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1735574662; x=1736179462; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=e4fsEga2/AkRAk+dZiGMoXfZ/rg3UqASi/ikezv0teY=; b=rDrVitiUxidgrT6Qyp7OeyRMvFDqxJ5BgXW/H6jhyhIPvNqAoNojDsE7QIubU8q1WH VqVoe093e8mUgD5MHnF2oLZ4GJW7M6x/9mqPumo7UtUYJNcTSoeR2XlSi4d/w3xULj52 5m9qSGPKpEG69a/b5qIeRq/J6LfUZA6O/Z0JFEJfbjmGNFvjDu1NZ/uDmEi94dpE1on1 DnY9ULaAJqFfmjg7uNTRBXeNSwp4azlggLNjgVjo40XV+JogUaeE8n6WFiHNr3/EST0d Qkjbcd985vFtRwYpTOdkdZHhz8FLHmnDKla2S7BI5TxT1CrAdUF2t7rAWmYUZXRmLpy1 UTyQ== X-Forwarded-Encrypted: i=1; AJvYcCV8+eGdKahG6l1CMY3W+2xu8tFQSMveWXtZncUcRgno8jltA8u6azdswlPpaj/e0Ax/1TPcDznxTQC26xA=@vger.kernel.org X-Gm-Message-State: AOJu0YzScNIejowt9+ePVCLwQCyca0M5vmQzCtyLGNAqJ7jFtQE1wqcm Wt0XKt2OhpgvRbVdFKUJByo2Vlyv9A/BcKsMyRk+WTE3YJBCna3ELniqO8ccc6RrpFU3ZeSt+h5 QIFZY9sKUS0i/y8ynH1Vu/Cie7qKDpHSumGbDmhSzNeEr0agb80t+p/k= X-Google-Smtp-Source: AGHT+IE1DHOxbZ7HCYOaCX5fNYEM6h+LbHbQdDdn2OlMQPMaTopXsoxzPr1YlYmvd7IUWDqbLdd85lLmVHAHFWIQMAKVSXCd4dPQ Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a92:8748:0:b0:3cc:b7e4:6264 with SMTP id e9e14a558f8ab-3ccb7e464b3mr31808025ab.0.1735574661934; Mon, 30 Dec 2024 08:04:21 -0800 (PST) Date: Mon, 30 Dec 2024 08:04:21 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6772c485.050a0220.2f3838.04c6.GAE@google.com> Subject: [syzbot] [net?] kernel BUG in vlan_get_tci From: syzbot To: davem@davemloft.net, edumazet@google.com, horms@kernel.org, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, pabeni@redhat.com, syzkaller-bugs@googlegroups.com, willemdebruijn.kernel@gmail.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 9268abe611b0 Merge branch 'net-lan969x-add-rgmii-support' git tree: net-next console output: https://syzkaller.appspot.com/x/log.txt?x=15adaac4580000 kernel config: https://syzkaller.appspot.com/x/.config?x=b087c24b921cdc16 dashboard link: https://syzkaller.appspot.com/bug?extid=8400677f3fd43f37d3bc 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=12e1a6df980000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13adaac4580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/8274f60b0163/disk-9268abe6.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/f7b3fde537e7/vmlinux-9268abe6.xz kernel image: https://storage.googleapis.com/syzbot-assets/db4cccf7caae/bzImage-9268abe6.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+8400677f3fd43f37d3bc@syzkaller.appspotmail.com skbuff: skb_under_panic: text:ffffffff8a8da482 len:4 put:14 head:ffff88804ff34f00 data:ffff88804ff34f10 tail:0x14 end:0x140 dev: ------------[ cut here ]------------ kernel BUG at net/core/skbuff.c:206! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 0 UID: 0 PID: 5839 Comm: syz-executor403 Not tainted 6.13.0-rc3-syzkaller-00762-g9268abe611b0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:skb_panic net/core/skbuff.c:206 [inline] RIP: 0010:skb_under_panic+0x14b/0x150 net/core/skbuff.c:216 Code: 0b 8d 48 c7 c6 9e 6c 26 8e 48 8b 54 24 08 8b 0c 24 44 8b 44 24 04 4d 89 e9 50 41 54 41 57 41 56 e8 3a 5a 79 f7 48 83 c4 20 90 <0f> 0b 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 RSP: 0018:ffffc900039275b8 EFLAGS: 00010286 RAX: 0000000000000086 RBX: dffffc0000000000 RCX: 562c0de467bbe000 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffff8880283eca10 R08: ffffffff817f0a4c R09: 1ffff92000724e50 R10: dffffc0000000000 R11: fffff52000724e51 R12: 0000000000000140 R13: ffff88804ff34f00 R14: ffff88804ff34f10 R15: 0000000000000014 FS: 00007f67013ab6c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f670138ad58 CR3: 0000000011ed0000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: skb_push+0xe5/0x100 net/core/skbuff.c:2636 vlan_get_tci+0x272/0x550 net/packet/af_packet.c:565 packet_recvmsg+0x13c9/0x1ef0 net/packet/af_packet.c:3616 sock_recvmsg_nosec net/socket.c:1044 [inline] sock_recvmsg+0x22f/0x280 net/socket.c:1066 ____sys_recvmsg+0x1c6/0x480 net/socket.c:2814 ___sys_recvmsg net/socket.c:2856 [inline] do_recvmmsg+0x426/0xab0 net/socket.c:2951 __sys_recvmmsg net/socket.c:3025 [inline] __do_sys_recvmmsg net/socket.c:3048 [inline] __se_sys_recvmmsg net/socket.c:3041 [inline] __x64_sys_recvmmsg+0x199/0x250 net/socket.c:3041 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: 0033:0x7f67013f05a9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f67013ab238 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: ffffffffffffffda RBX: 00007f670147a348 RCX: 00007f67013f05a9 RDX: 0000000000000001 RSI: 0000000020000480 RDI: 0000000000000003 RBP: 00007f670147a340 R08: 0000000000000000 R09: 00007f67013ab6c0 R10: 0000000000010022 R11: 0000000000000246 R12: 00007f6701447074 R13: 0000000000000000 R14: 00007ffea4c13700 R15: 00007ffea4c137e8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:skb_panic net/core/skbuff.c:206 [inline] RIP: 0010:skb_under_panic+0x14b/0x150 net/core/skbuff.c:216 Code: 0b 8d 48 c7 c6 9e 6c 26 8e 48 8b 54 24 08 8b 0c 24 44 8b 44 24 04 4d 89 e9 50 41 54 41 57 41 56 e8 3a 5a 79 f7 48 83 c4 20 90 <0f> 0b 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 RSP: 0018:ffffc900039275b8 EFLAGS: 00010286 RAX: 0000000000000086 RBX: dffffc0000000000 RCX: 562c0de467bbe000 RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 RBP: ffff8880283eca10 R08: ffffffff817f0a4c R09: 1ffff92000724e50 R10: dffffc0000000000 R11: fffff52000724e51 R12: 0000000000000140 R13: ffff88804ff34f00 R14: ffff88804ff34f10 R15: 0000000000000014 FS: 00007f67013ab6c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f670138ad58 CR3: 0000000011ed0000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- 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. 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