From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oi1-f199.google.com (mail-oi1-f199.google.com [209.85.167.199]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 352681704 for ; Thu, 7 Dec 2023 10:17:26 -0800 (PST) Received: by mail-oi1-f199.google.com with SMTP id 5614622812f47-3b8b8562577so2055427b6e.1 for ; Thu, 07 Dec 2023 10:17:26 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1701973045; x=1702577845; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=uhnv9lBHKEXOXqfNZWSlL9PiEGeoqa474iI9yfu4Gxo=; b=YvBxuf3AMmW3ocWrZLD3nbmKVdVrIhYJuGXCvOBPhrRQnabonkdDQ1gLD6W3w3msFG dYN2YtfTKFNA4u0GPNhGU9y3Qi7SpOMabqJOXt6xW8otHGOoLk2n8E+OTIFDFOq6XeaV He1JAIqn7M0G1XqGVV+2XJvzMu4RNCzc+9FPNBXWmufq7Zw5CE3NXK/QCuoQ8Xllx6jB B6f8+5NDYXCvONg6OEjQx8rr/Qq8mk+GtMcP3juxL90jJJxGPxw+arHGMS4JbmS5effu TYnLXB5y8ulex2po8vNzXFxACCXrBtkkX6IXBTf3MHVkEKuzF8GHrmltThkf8PpN9Ead Rrdg== X-Gm-Message-State: AOJu0Yx1jlQATN9r3vThRaM8nQxdACCFGaZ3YgPJbisLGsxU23SnmT7x Cp50SMgC1M/qvSnypJZqK+3Pvpn3ifmSK0gZqFDkqh/++Sk4 X-Google-Smtp-Source: AGHT+IFvA1IozkeVb87UcIiqOXemDjGIaAAgjK3RmtRQPsUEXQHeYAY+sEIECKIKz5f+OyTLkRA7sfv+lWzgHJwRkrqOiLlGwjbI Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6808:158e:b0:3b5:6a59:abb7 with SMTP id t14-20020a056808158e00b003b56a59abb7mr2958776oiw.6.1701973045498; Thu, 07 Dec 2023 10:17:25 -0800 (PST) Date: Thu, 07 Dec 2023 10:17:25 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000cb5b07060bef7ac0@google.com> Subject: [syzbot] [net?] WARNING in ip6_route_info_create 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" X-Spam-Level: ** Hello, syzbot found the following issue on: HEAD commit: 5a08d0065a91 ipv6: add debug checks in fib6_info_release() git tree: net-next console+strace: https://syzkaller.appspot.com/x/log.txt?x=175698dae80000 kernel config: https://syzkaller.appspot.com/x/.config?x=f8715b6ede5c4b90 dashboard link: https://syzkaller.appspot.com/bug?extid=c15aa445274af8674f41 compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16070374e80000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=145e1574e80000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/12a59d7df47f/disk-5a08d006.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/14f0ca0a861e/vmlinux-5a08d006.xz kernel image: https://storage.googleapis.com/syzbot-assets/ae9306decbe5/bzImage-5a08d006.xz The issue was bisected to: commit 5a08d0065a915ccf325563d7ca57fa8b4897881c Author: Eric Dumazet Date: Tue Dec 5 17:32:50 2023 +0000 ipv6: add debug checks in fib6_info_release() bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1137437ae80000 final oops: https://syzkaller.appspot.com/x/report.txt?x=1337437ae80000 console output: https://syzkaller.appspot.com/x/log.txt?x=1537437ae80000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+c15aa445274af8674f41@syzkaller.appspotmail.com Fixes: 5a08d0065a91 ("ipv6: add debug checks in fib6_info_release()") ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5062 at include/net/ip6_fib.h:332 fib6_info_release include/net/ip6_fib.h:332 [inline] WARNING: CPU: 0 PID: 5062 at include/net/ip6_fib.h:332 ip6_route_info_create+0x1a1a/0x1f10 net/ipv6/route.c:3829 Modules linked in: CPU: 0 PID: 5062 Comm: syz-executor399 Not tainted 6.7.0-rc3-syzkaller-00805-g5a08d0065a91 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 RIP: 0010:fib6_info_release include/net/ip6_fib.h:332 [inline] RIP: 0010:ip6_route_info_create+0x1a1a/0x1f10 net/ipv6/route.c:3829 Code: 49 83 7f 40 00 75 28 e8 04 ae 50 f8 49 8d bf a0 00 00 00 48 c7 c6 c0 ae 37 89 e8 41 2c 3a f8 e9 65 f4 ff ff e8 e7 ad 50 f8 90 <0f> 0b 90 eb ad e8 dc ad 50 f8 90 0f 0b 90 eb cd e8 d1 ad 50 f8 e8 RSP: 0018:ffffc900039cf8e0 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000400000 RCX: ffffffff8936e418 RDX: ffff888014695940 RSI: ffffffff8936e469 RDI: 0000000000000005 RBP: ffffc900039cf9d0 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000400000 R11: ffffffff8aa0008b R12: ffffffffffffffed R13: ffff88802560682c R14: ffffc900039cfac4 R15: ffff888025606800 FS: 00005555567bb380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000200001c2 CR3: 00000000793d5000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ip6_route_add+0x26/0x1f0 net/ipv6/route.c:3843 ipv6_route_ioctl+0x3ff/0x590 net/ipv6/route.c:4467 inet6_ioctl+0x265/0x2b0 net/ipv6/af_inet6.c:575 sock_do_ioctl+0x113/0x270 net/socket.c:1220 sock_ioctl+0x22e/0x6b0 net/socket.c:1339 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:871 [inline] __se_sys_ioctl fs/ioctl.c:857 [inline] __x64_sys_ioctl+0x18f/0x210 fs/ioctl.c:857 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x40/0x110 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7f73fa33f369 Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 00 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:00007ffce78f30b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007ffce78f3288 RCX: 00007f73fa33f369 RDX: 00000000200001c0 RSI: 000000000000890b RDI: 0000000000000003 RBP: 00007f73fa3b2610 R08: 0000000000000000 R09: 00007ffce78f3288 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffce78f3278 R14: 0000000000000001 R15: 0000000000000001 --- 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