From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f70.google.com (mail-io1-f70.google.com [209.85.166.70]) (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 2FE3E7B3FE for ; Fri, 19 Apr 2024 09:39:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.70 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713519563; cv=none; b=uDiGKCZZv4KRMrqcJYh2zoHGa/5KCZicwqwjcRLqykENH1Hvn6Rc62vvq0EBYyE8wTidf9JkHYChMfLBbp147+mjlXG8hZ5zrWQvDaw0XVd/cUtUev622x/4BXrHwMCgTO+QTFAKkdzGndoWqdbO3UEUzdwu9k1y/mp32Nt+GYQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713519563; c=relaxed/simple; bh=EhhYJ42f9QWeElYSrZjAwIwx5T0rT+byCgouzLS1tR8=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=JCB0QFYwQO1AMEzHNrwF21LpaucmCd+9W4V4N3U8n+dYvM/jopRkeKRZ7otBEDyyUI/R1UylaE2KLeK6vYRsbxM6nujIJQZ5TKlIu81AGLEXDEbilbJqqbmMDXXoxzO+h69/39qCcssUiiHTBl32+ai8cj1zoTCjyjMxVvcYjLQ= 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=209.85.166.70 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-f70.google.com with SMTP id ca18e2360f4ac-7da60b9a4f6so17819239f.0 for ; Fri, 19 Apr 2024 02:39:21 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1713519561; x=1714124361; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=q6ZaY/rhI9lX6wl+zmzdUP6cT/PHQHY2tKSNPNJKq28=; b=AlXz0Xvy34AZhRZvYwwR0c1Rlkxlhv+tGQd0iY81BKMpY+ol7nHoek3b3b9kIeAgTk xKYMdxK7SAlpYKsv37h8Nv6I6hBDzUIaJa8Y41xtfibNgT6DhD74DXZPa/p/o4HE9e05 Lp1fuEi5NHH/gkc29DWk07C/F9Yl16O8orrSVwGLQleMOoV0k18Bg1x5AdMvnJyWQO2J UWvgZejkzAL4O3/fefNtxPCJkPrfL7aFvHlq9NA4wGfm4Soie3HuwYiFxZ32XItGdo0O FukgUR5LQQL9UkLFsF9cNDaetF6Vxnw+vYSpLfrTnMNBR9U43c3XwsgkVoWmcmFFkYWa IOMA== X-Forwarded-Encrypted: i=1; AJvYcCUFVBNlXHZSDgP3vvrhoYczqRd+RXuLfkENISwQ4pqBsR+g2IGGtFZ0ID6difTr2//v4qXQWHEZLfL1c8LkjnBO9ALEmedD X-Gm-Message-State: AOJu0YxnNtIsR1btv8sNzfOh4EFauwDvJsJrGZiaZ7yXBv22Rp5/ChKX uODkL2AMg1GrgUMcWen959ZiO+HRnuYb1jJFyYLdJl7tje45AdHxS7TSsrfL6gcpItXEWn2Sncz Bp/MjlrkaLj+YSJKcu/U82wgNN6u0aL2WgHG8mCkKUpLNE3hXaEdjdzw= X-Google-Smtp-Source: AGHT+IHaaJNZ/icD0BqwrSfTnvGtd2dw7RaeIW67a/mcAbN0BjPh8dwIDjD1odrnKU3cIoXHjZTx59/pFKGjY883rA5BOYAgJnMk Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6638:25cd:b0:482:fbfb:e72e with SMTP id u13-20020a05663825cd00b00482fbfbe72emr129896jat.6.1713519561422; Fri, 19 Apr 2024 02:39:21 -0700 (PDT) Date: Fri, 19 Apr 2024 02:39:21 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000c6405606166fdc68@google.com> Subject: [syzbot] [net?] WARNING in gre_tap_xmit (2) From: syzbot To: davem@davemloft.net, dsahern@kernel.org, edumazet@google.com, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, pabeni@redhat.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 443574b03387 riscv, bpf: Fix kfunc parameters incompatibil.. git tree: bpf console output: https://syzkaller.appspot.com/x/log.txt?x=165886c3180000 kernel config: https://syzkaller.appspot.com/x/.config?x=6fb1be60a193d440 dashboard link: https://syzkaller.appspot.com/bug?extid=c298c9f0e46a3c86332b compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/3f355021a085/disk-443574b0.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/44cf4de7472a/vmlinux-443574b0.xz kernel image: https://storage.googleapis.com/syzbot-assets/a99a36c7ad65/bzImage-443574b0.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+c298c9f0e46a3c86332b@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 0 PID: 13407 at include/linux/skbuff.h:2740 pskb_may_pull_reason include/linux/skbuff.h:2740 [inline] WARNING: CPU: 0 PID: 13407 at include/linux/skbuff.h:2740 pskb_may_pull include/linux/skbuff.h:2756 [inline] WARNING: CPU: 0 PID: 13407 at include/linux/skbuff.h:2740 pskb_network_may_pull include/linux/skbuff.h:3077 [inline] WARNING: CPU: 0 PID: 13407 at include/linux/skbuff.h:2740 pskb_inet_may_pull include/net/ip_tunnels.h:361 [inline] WARNING: CPU: 0 PID: 13407 at include/linux/skbuff.h:2740 gre_tap_xmit+0x4ff/0x6e0 net/ipv4/ip_gre.c:734 Modules linked in: CPU: 0 PID: 13407 Comm: syz-executor.1 Not tainted 6.8.0-syzkaller-05236-g443574b03387 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:pskb_may_pull_reason include/linux/skbuff.h:2740 [inline] RIP: 0010:pskb_may_pull include/linux/skbuff.h:2756 [inline] RIP: 0010:pskb_network_may_pull include/linux/skbuff.h:3077 [inline] RIP: 0010:pskb_inet_may_pull include/net/ip_tunnels.h:361 [inline] RIP: 0010:gre_tap_xmit+0x4ff/0x6e0 net/ipv4/ip_gre.c:734 Code: 00 4c 89 ef 48 89 ee 48 89 da e8 7c 8f fb ff 31 c0 48 83 c4 38 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc e8 62 55 9d f7 90 <0f> 0b 90 e9 09 fc ff ff 44 89 e7 89 ee e8 0f 57 9d f7 41 39 ec 0f RSP: 0018:ffffc90004b66e00 EFLAGS: 00010287 RAX: ffffffff89f79b0e RBX: ffff888061667718 RCX: 0000000000040000 RDX: ffffc9000c375000 RSI: 00000000000124e0 RDI: 00000000000124e1 RBP: 00000000ffffffb6 R08: ffffffff89f79712 R09: 1ffffffff1f0d5cd R10: dffffc0000000000 R11: ffffffff89f79610 R12: 0000000000000000 R13: ffff888061667640 R14: ffff888062b64000 R15: dffffc0000000000 FS: 00007f08d29ff6c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020010000 CR3: 0000000061678000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: __netdev_start_xmit include/linux/netdevice.h:4903 [inline] netdev_start_xmit include/linux/netdevice.h:4917 [inline] xmit_one net/core/dev.c:3531 [inline] dev_hard_start_xmit+0x26a/0x790 net/core/dev.c:3547 sch_direct_xmit+0x2b6/0x5f0 net/sched/sch_generic.c:343 __dev_xmit_skb net/core/dev.c:3760 [inline] __dev_queue_xmit+0x1912/0x3b10 net/core/dev.c:4301 bond_start_xmit+0x1389/0x1c40 drivers/net/bonding/bond_main.c:5469 __netdev_start_xmit include/linux/netdevice.h:4903 [inline] netdev_start_xmit include/linux/netdevice.h:4917 [inline] xmit_one net/core/dev.c:3531 [inline] dev_hard_start_xmit+0x26a/0x790 net/core/dev.c:3547 __dev_queue_xmit+0x19f4/0x3b10 net/core/dev.c:4335 packet_snd net/packet/af_packet.c:3083 [inline] packet_sendmsg+0x4932/0x63d0 net/packet/af_packet.c:3115 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:745 ____sys_sendmsg+0x525/0x7d0 net/socket.c:2584 ___sys_sendmsg net/socket.c:2638 [inline] __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2667 do_syscall_64+0xfb/0x240 entry_SYSCALL_64_after_hwframe+0x6d/0x75 RIP: 0033:0x7f08d2e7dea9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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:00007f08d29ff0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f08d2fabf80 RCX: 00007f08d2e7dea9 RDX: 00000000200400c4 RSI: 0000000020000180 RDI: 0000000000000006 RBP: 00007f08d2eca4a4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f08d2fabf80 R15: 00007ffcba0da4f8 --- 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 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