------------[ cut here ]------------ WARNING: CPU: 0 PID: 16470 at net/netfilter/nf_conntrack_core.c:600 nf_ct_tmpl_free net/netfilter/nf_conntrack_core.c:580 [inline] WARNING: CPU: 0 PID: 16470 at net/netfilter/nf_conntrack_core.c:600 destroy_conntrack+0x198/0x210 net/netfilter/nf_conntrack_core.c:603 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 16470 Comm: syz-executor.2 Not tainted 5.6.0-rc5-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+0x96/0xe0 lib/dump_stack.c:118 panic+0x2a1/0x52a kernel/panic.c:221 __warn.cold.10+0x25/0x2f kernel/panic.c:582 report_bug+0x1aa/0x260 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+0x12d/0x1e0 arch/x86/kernel/traps.c:267 do_invalid_op+0x31/0x40 arch/x86/kernel/traps.c:286 invalid_op+0x2d/0x40 arch/x86/entry/entry_64.S:1027 RIP: 0010:destroy_conntrack+0x198/0x210 net/netfilter/nf_conntrack_core.c:600 Code: 6e 69 dd fc 48 89 df 5b 5d e9 44 8e ff ff 48 89 ef e8 ec 62 fd ff eb ac 48 89 df e8 22 3a 02 00 48 89 df 5b 5d e9 f8 8b e7 fa <0f> 0b e9 ac fe ff ff 48 b8 00 00 00 00 00 fc ff df 48 89 ea 48 c1 RSP: 0018:ffffc90002b17090 EFLAGS: 00010286 RAX: 00000000ffffffff RBX: ffff88809485ec00 RCX: ffffffff86b7bb97 RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff88809485ec00 RBP: ffffc90002b170c0 R08: ffffed101290bd81 R09: ffffed101290bd81 R10: ffffed101290bd80 R11: ffff88809485ec03 R12: 0000000000000000 R13: ffff88809485ec00 R14: ffff88809485ec00 R15: 0000000000000000 nf_conntrack_destroy+0x92/0x19d net/netfilter/core.c:600 nf_conntrack_put include/linux/netfilter/nf_conntrack_common.h:34 [inline] nf_ct_put include/net/netfilter/nf_conntrack.h:162 [inline] nft_ct_tmpl_put_pcpu+0x14e/0x260 net/netfilter/nft_ct.c:358 __nft_ct_set_destroy net/netfilter/nft_ct.c:523 [inline] nft_ct_set_init+0x385/0x710 net/netfilter/nft_ct.c:617 nf_tables_newexpr net/netfilter/nf_tables_api.c:2505 [inline] nft_expr_init+0x10e/0x280 net/netfilter/nf_tables_api.c:2543 nft_set_elem_expr_alloc+0x16/0x1e0 net/netfilter/nf_tables_api.c:4831 nf_tables_newset+0x12d3/0x2080 net/netfilter/nf_tables_api.c:4090 nfnetlink_rcv_batch+0x876/0x15e0 net/netfilter/nfnetlink.c:433 nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:543 [inline] nfnetlink_rcv+0x2bc/0x340 net/netfilter/nfnetlink.c:561 netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline] netlink_unicast+0x434/0x630 net/netlink/af_netlink.c:1329 netlink_sendmsg+0x766/0xc10 net/netlink/af_netlink.c:1918 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg+0xac/0xf0 net/socket.c:672 ____sys_sendmsg+0x54e/0x760 net/socket.c:2343 ___sys_sendmsg+0xe4/0x160 net/socket.c:2397 __sys_sendmsg+0xce/0x170 net/socket.c:2430 do_syscall_64+0x98/0x560 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665e9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f509962b188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9 RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000003 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffdb2e87a2f R14: 00007f509962b300 R15: 0000000000022000 Kernel Offset: disabled Rebooting in 86400 seconds..