Hello, syzbot found the following crash on: HEAD commit: c578ddb3 Merge tag 'linux-kselftest-5.7-rc3' of git://git... git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=17f1d330100000 kernel config: https://syzkaller.appspot.com/x/.config?x=78a7d8adda44b4b dashboard link: https://syzkaller.appspot.com/bug?extid=02446910ced9f8b60c06 compiler: clang version 10.0.0 (https://github.com/llvm/llvm-project/ c2443155a0fb245c8f17f2c1c72b6ea391e86e81) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14083ecfe00000 Bisection is inconclusive: the first bad commit could be any of: 9211bfbf netfilter: add missing IS_ENABLED(CONFIG_BRIDGE_NETFILTER) checks to header-file. 47e640af netfilter: add missing IS_ENABLED(CONFIG_NF_TABLES) check to header-file. a1b2f04e netfilter: add missing includes to a number of header-files. 0abc8bf4 netfilter: add missing IS_ENABLED(CONFIG_NF_CONNTRACK) checks to some header-files. bd96b4c7 netfilter: inline four headers files into another one. 43dd16ef netfilter: nf_tables: store data in offload context registers 78458e3e netfilter: add missing IS_ENABLED(CONFIG_NETFILTER) checks to some header-files. 20a9379d netfilter: remove "#ifdef __KERNEL__" guards from some headers. bd8699e9 netfilter: nft_bitwise: add offload support 2a475c40 kbuild: remove all netfilter headers from header-test blacklist. 7e59b3fe netfilter: remove unnecessary spaces 1b90af29 ipvs: Improve robustness to the ipvs sysctl 5785cf15 netfilter: nf_tables: add missing prototypes. 0a30ba50 netfilter: nf_nat_proto: make tables static e84fb4b3 netfilter: conntrack: use shared sysctl constants 10533343 netfilter: connlabels: prefer static lock initialiser 8c0bb787 netfilter: synproxy: rename mss synproxy_options field c162610c Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=15410074100000 IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+02446910ced9f8b60c06@xxxxxxxxxxxxxxxxxxxxxxxxx ------------[ cut here ]------------ WARNING: CPU: 1 PID: 7534 at kernel/locking/lockdep.c:873 look_up_lock_class+0x207/0x280 kernel/locking/lockdep.c:863 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 7534 Comm: syz-executor.0 Not tainted 5.7.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1e9/0x30e lib/dump_stack.c:118 panic+0x264/0x7a0 kernel/panic.c:221 __warn+0x209/0x210 kernel/panic.c:582 report_bug+0x1ac/0x2d0 lib/bug.c:195 fixup_bug arch/x86/kernel/traps.c:175 [inline] do_error_trap+0xca/0x1c0 arch/x86/kernel/traps.c:267 do_invalid_op+0x32/0x40 arch/x86/kernel/traps.c:286 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027 RIP: 0010:look_up_lock_class+0x207/0x280 kernel/locking/lockdep.c:863 Code: 3d 91 8b 12 08 00 0f 85 35 ff ff ff 31 db 48 c7 c7 19 59 e5 88 48 c7 c6 c3 e9 e6 88 31 c0 e8 c0 17 ec ff 0f 0b e9 7b ff ff ff <0f> 0b e9 74 ff ff ff 48 c7 c1 30 6d 55 8b 80 e1 07 80 c1 03 38 c1 RSP: 0018:ffffc9000268fa98 EFLAGS: 00010002 RAX: ffffffff8ab07460 RBX: ffffffff8ad69a68 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8880a83b40a0 RBP: ffff8880a83b40b8 R08: 0000000000000001 R09: 0000000000000000 R10: fffffbfff12d772d R11: 0000000000000000 R12: 1ffff11015076814 R13: ffffffff89063e89 R14: ffff8880a83b40a0 R15: dffffc0000000000 register_lock_class+0x97/0x10d0 kernel/locking/lockdep.c:1220 __lock_acquire+0x102/0x2c30 kernel/locking/lockdep.c:4234 lock_acquire+0x169/0x480 kernel/locking/lockdep.c:4934 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline] _raw_spin_lock_bh+0x31/0x40 kernel/locking/spinlock.c:175 spin_lock_bh include/linux/spinlock.h:358 [inline] lock_sock_nested+0x43/0x110 net/core/sock.c:2959 lock_sock include/net/sock.h:1574 [inline] inet_autobind net/ipv4/af_inet.c:179 [inline] inet_dgram_connect+0x1a7/0x360 net/ipv4/af_inet.c:569 __sys_connect_file net/socket.c:1859 [inline] __sys_connect+0x2da/0x360 net/socket.c:1876 __do_sys_connect net/socket.c:1887 [inline] __se_sys_connect net/socket.c:1884 [inline] __x64_sys_connect+0x76/0x80 net/socket.c:1884 do_syscall_64+0xf3/0x1b0 arch/x86/entry/common.c:295 entry_SYSCALL_64_after_hwframe+0x49/0xb3 RIP: 0033:0x45c829 Code: 0d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 db b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f47444d9c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 00000000004dabc0 RCX: 000000000045c829 RDX: 000000000000001c RSI: 0000000020000040 RDI: 0000000000000003 RBP: 000000000078bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000084 R14: 00000000004c31c2 R15: 00007f47444da6d4 Kernel Offset: disabled Rebooting in 86400 seconds.. --- This bug 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@xxxxxxxxxxxxxxxx. syzbot will keep track of this bug report. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. For information about bisection process see: https://goo.gl/tpsmEJ#bisection syzbot can test patches for this bug, for details see: https://goo.gl/tpsmEJ#testing-patches
