xt_hashlimit: size too large, truncated to 1048576 ------------[ cut here ]------------ proc_dir_entry 'ip6t_hashlimit/veth1' already registered WARNING: CPU: 0 PID: 12235 at fs/proc/generic.c:362 proc_register+0x41e/0x590 fs/proc/generic.c:362 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 12235 Comm: syz-executor.3 Not tainted 5.6.0-rc3-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+0x197/0x210 lib/dump_stack.c:118 panic+0x2e3/0x75c kernel/panic.c:221 __warn.cold+0x2f/0x3e kernel/panic.c:582 report_bug+0x289/0x300 lib/bug.c:195 fixup_bug arch/x86/kernel/traps.c:174 [inline] fixup_bug arch/x86/kernel/traps.c:169 [inline] do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:267 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:286 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027 RIP: 0010:proc_register+0x41e/0x590 fs/proc/generic.c:362 Code: ff df 48 89 f9 48 c1 e9 03 80 3c 01 00 0f 85 5a 01 00 00 48 8b 45 d0 48 c7 c7 20 15 59 88 48 8b b0 d0 00 00 00 e8 91 e0 5e ff <0f> 0b 48 c7 c7 a0 2e cb 89 e8 94 82 09 06 48 8b 4d a0 48 b8 00 00 RSP: 0018:ffffc90008bc7548 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff888093758770 RCX: 0000000000000000 RDX: 0000000000040000 RSI: ffffffff815ebe46 RDI: fffff52001178e9b RBP: ffffc90008bc75b0 R08: ffff88803cdc4040 R09: fffffbfff16a336e R10: fffffbfff16a336d R11: ffffffff8b519b6f R12: ffff8880a6693440 R13: 0000000000000000 R14: ffff888095b04678 R15: dffffc0000000000 proc_create_seq_private+0x12b/0x190 fs/proc/generic.c:593 htable_create net/netfilter/xt_hashlimit.c:341 [inline] hashlimit_mt_check_common.isra.0+0xb30/0x1680 net/netfilter/xt_hashlimit.c:902 hashlimit_mt_check_v1+0x325/0x3ab net/netfilter/xt_hashlimit.c:928 xt_check_match+0x280/0x690 net/netfilter/x_tables.c:501 check_match net/ipv6/netfilter/ip6_tables.c:489 [inline] find_check_match net/ipv6/netfilter/ip6_tables.c:506 [inline] find_check_entry.isra.0+0x389/0x9d0 net/ipv6/netfilter/ip6_tables.c:557 translate_table+0xd15/0x1860 net/ipv6/netfilter/ip6_tables.c:734 do_replace net/ipv6/netfilter/ip6_tables.c:1153 [inline] do_ip6t_set_ctl+0x2fe/0x4c8 net/ipv6/netfilter/ip6_tables.c:1681 nf_sockopt net/netfilter/nf_sockopt.c:106 [inline] nf_setsockopt+0x77/0xd0 net/netfilter/nf_sockopt.c:115 ipv6_setsockopt net/ipv6/ipv6_sockglue.c:949 [inline] ipv6_setsockopt+0x147/0x180 net/ipv6/ipv6_sockglue.c:933 tcp_setsockopt net/ipv4/tcp.c:3165 [inline] tcp_setsockopt+0x8f/0xe0 net/ipv4/tcp.c:3159 sock_common_setsockopt+0x94/0xd0 net/core/sock.c:3149 __sys_setsockopt+0x261/0x4c0 net/socket.c:2130 __do_sys_setsockopt net/socket.c:2146 [inline] __se_sys_setsockopt net/socket.c:2143 [inline] __x64_sys_setsockopt+0xbe/0x150 net/socket.c:2143 do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45c479 Code: ad b6 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 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f46cd785c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007f46cd7866d4 RCX: 000000000045c479 RDX: 0000000000000040 RSI: 0000000000000029 RDI: 0000000000000003 RBP: 000000000076bfc0 R08: 0000000000000420 R09: 0000000000000000 R10: 0000000020001140 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000a32 R14: 00000000004d5bf0 R15: 000000000076bfcc Kernel Offset: disabled Rebooting in 86400 seconds..