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 8A98F199FD3 for ; Thu, 12 Dec 2024 22:20:27 +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=1734042029; cv=none; b=RWcb5nsOVmJJ25tNyxQIIItpb+Ygzg5Qyeq22Z4+4vIjYhwwF8LlVF7TytD80R0NGI3J9XHonH7mdFM+q+HcPn26xwxDcgd2wva7srvI2pBl6GqZc9busnLYOe0x7JuEzDRLAHofuU2uSGY+qPidL5qRsqMN+SiKsOLpDMrIC8k= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734042029; c=relaxed/simple; bh=lfUzYuEvRyQfqlRRIjEGqBRMKyxrhcD3WK1nSCc9brU=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=jZoLojKlyDUaXx536hq2L/orJcGHOtOQrLQ+x3yoXneUszI2xHY1rC/GRJUUTRPIszGBYB5dvJlrqYoCediWDVmHlVs8+TwPp5FnbQcxks5ttbApP3Pam4TsfUbAgvABtvtMhXJAtaEB67iYWCNhnj/epDTUyEcek2OHrGRH1AA= 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-3a817e4aa67so10243705ab.2 for ; Thu, 12 Dec 2024 14:20:27 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1734042026; x=1734646826; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=JiJBO4YkDGjPUE2+2UYWhhTh96UUa4D1CK2SB4rQoOo=; b=EiLlYUkfTp6fQ2sTF9tb3BlSnUlPAUA7onbfGLHPoGjsMYBVie7LuN1VTrS8V5XUXI MlwuXunNwzLGkWWZ6Ww7rKeitr+YnGG+eFzHa5m40TqkSyPzdxMPrqlIQqpOm9IyHEqp jJjoTQQ0+akm3mid3IGMSNcBgJlSslWk8b2FANSewvXKd6aozxng+4HRCJmwvEkp13b1 BgRvSoDA65Inj2bZqHUTupsuqklGsUjSXLNMBS57Y/PjKuGiBJqNifNC7ndhB5hhCB47 ZhzrEZ229bwHTQyQ0BWDlhDsfWNCo8B6YOKzJhbkpUXDxx8uYCr57t2Tk+Gut3qSfqgb jLog== X-Forwarded-Encrypted: i=1; AJvYcCVAMrVotVp4ooBJGIWYsDkvKUOKD9WKvN8xNJcoMQmMT6l2/dgmKTFidsfA+QzZyOff6vlLxUR2DWV5F6k=@vger.kernel.org X-Gm-Message-State: AOJu0Yx9x9SrD9RsrRQQSqMOepo+xZhG+yXLR4dcIBUKIohyvqLeAD5V FMTCSAWR8im9iqAYAzaX7qd9YFs5WlM9ZSW/qV0qRQdZpw8WdCteSGYqqWMHJePhzHs9WdjTjSk D3zk9wR4aU+4gUnI4KKZUxyIkfW3Ns6TRDqN82/VQ7AcxrzNtYx1tJUA= X-Google-Smtp-Source: AGHT+IFSqmfgaPcHWmpvTo/ao95n0hiJiZnAyatoM1E9PBANifFfvSujaEvVpNT3kyW8BlvCMuoBQYbvdFJX04kONrc828Ja8Yah 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:cdaa:0:b0:3a7:8720:9e9e with SMTP id e9e14a558f8ab-3aff6213742mr4733235ab.2.1734042026777; Thu, 12 Dec 2024 14:20:26 -0800 (PST) Date: Thu, 12 Dec 2024 14:20:26 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <675b61aa.050a0220.599f4.00bb.GAE@google.com> Subject: [syzbot] [tipc?] kernel BUG in __pskb_pull_tail From: syzbot To: davem@davemloft.net, edumazet@google.com, horms@kernel.org, jmaloy@redhat.com, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, pabeni@redhat.com, syzkaller-bugs@googlegroups.com, tipc-discussion@lists.sourceforge.net, ying.xue@windriver.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 96b6fcc0ee41 Merge branch 'net-dsa-cleanup-eee-part-1' git tree: net-next console output: https://syzkaller.appspot.com/x/log.txt?x=13a74d44580000 kernel config: https://syzkaller.appspot.com/x/.config?x=1362a5aee630ff34 dashboard link: https://syzkaller.appspot.com/bug?extid=4f66250f6663c0c1d67e 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=15eb0730580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=117844f8580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/c62feec036f0/disk-96b6fcc0.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/0dd481b2d92e/vmlinux-96b6fcc0.xz kernel image: https://storage.googleapis.com/syzbot-assets/7f647dfdfac4/bzImage-96b6fcc0.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+4f66250f6663c0c1d67e@syzkaller.appspotmail.com ------------[ cut here ]------------ kernel BUG at net/core/skbuff.c:2849! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 0 UID: 0 PID: 6230 Comm: syz-executor132 Not tainted 6.13.0-rc1-syzkaller-00407-g96b6fcc0ee41 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 RIP: 0010:__pskb_pull_tail+0x1568/0x1570 net/core/skbuff.c:2848 Code: 38 c1 0f 8c 32 f1 ff ff 4c 89 f7 e8 92 96 74 f8 e9 25 f1 ff ff e8 e8 ae 09 f8 48 8b 5c 24 08 e9 eb fb ff ff e8 d9 ae 09 f8 90 <0f> 0b 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc90004cbef30 EFLAGS: 00010293 RAX: ffffffff8995c347 RBX: 00000000fffffff2 RCX: ffff88802cf45a00 RDX: 0000000000000000 RSI: 00000000fffffff2 RDI: 0000000000000000 RBP: ffff88807df0c06a R08: ffffffff8995b084 R09: 1ffff1100fbe185c R10: dffffc0000000000 R11: ffffed100fbe185d R12: ffff888076e85d50 R13: ffff888076e85c80 R14: ffff888076e85cf4 R15: ffff888076e85c80 FS: 00007f0dca6ea6c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0dca6ead58 CR3: 00000000119da000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: skb_cow_data+0x2da/0xcb0 net/core/skbuff.c:5284 tipc_aead_decrypt net/tipc/crypto.c:894 [inline] tipc_crypto_rcv+0x402/0x24e0 net/tipc/crypto.c:1844 tipc_rcv+0x57e/0x12a0 net/tipc/node.c:2109 tipc_l2_rcv_msg+0x2bd/0x450 net/tipc/bearer.c:668 __netif_receive_skb_list_ptype net/core/dev.c:5720 [inline] __netif_receive_skb_list_core+0x8b7/0x980 net/core/dev.c:5762 __netif_receive_skb_list net/core/dev.c:5814 [inline] netif_receive_skb_list_internal+0xa51/0xe30 net/core/dev.c:5905 gro_normal_list include/net/gro.h:515 [inline] napi_complete_done+0x2b5/0x870 net/core/dev.c:6256 napi_complete include/linux/netdevice.h:567 [inline] tun_get_user+0x2ea0/0x4890 drivers/net/tun.c:1982 tun_chr_write_iter+0x10d/0x1f0 drivers/net/tun.c:2057 do_iter_readv_writev+0x600/0x880 vfs_writev+0x376/0xba0 fs/read_write.c:1050 do_writev+0x1b6/0x360 fs/read_write.c:1096 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: 0033:0x7f0dca751f69 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 31 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f0dca6ea218 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 RAX: ffffffffffffffda RBX: 00007f0dca7dc438 RCX: 00007f0dca751f69 RDX: 0000000000000002 RSI: 00000000200001c0 RDI: 0000000000000004 RBP: 00007f0dca7dc430 R08: 00007ffdc30a1047 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f0dca7a92a4 R13: 006e75742f74656e R14: 74656e2f7665642f R15: 796c27468c04729a Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__pskb_pull_tail+0x1568/0x1570 net/core/skbuff.c:2848 Code: 38 c1 0f 8c 32 f1 ff ff 4c 89 f7 e8 92 96 74 f8 e9 25 f1 ff ff e8 e8 ae 09 f8 48 8b 5c 24 08 e9 eb fb ff ff e8 d9 ae 09 f8 90 <0f> 0b 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc90004cbef30 EFLAGS: 00010293 RAX: ffffffff8995c347 RBX: 00000000fffffff2 RCX: ffff88802cf45a00 RDX: 0000000000000000 RSI: 00000000fffffff2 RDI: 0000000000000000 RBP: ffff88807df0c06a R08: ffffffff8995b084 R09: 1ffff1100fbe185c R10: dffffc0000000000 R11: ffffed100fbe185d R12: ffff888076e85d50 R13: ffff888076e85c80 R14: ffff888076e85cf4 R15: ffff888076e85c80 FS: 00007f0dca6ea6c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0dca6ead58 CR3: 00000000119da000 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