Warning: Permanently added '10.128.0.214' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 56.351161][ T6815] ------------[ cut here ]------------ [ 56.357684][ T6815] hook not found, pf 2 num 0 [ 56.358059][ T6815] WARNING: CPU: 1 PID: 6815 at net/netfilter/core.c:413 __nf_unregister_net_hook+0x1eb/0x500 [ 56.374101][ T6815] Kernel panic - not syncing: panic_on_warn set ... [ 56.380679][ T6815] CPU: 1 PID: 6815 Comm: syz-executor284 Not tainted 5.8.0-rc4-syzkaller #0 [ 56.389341][ T6815] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.399371][ T6815] Call Trace: [ 56.402651][ T6815] dump_stack+0x18f/0x20d [ 56.406959][ T6815] panic+0x2e3/0x75c [ 56.410829][ T6815] ? __warn_printk+0xf3/0xf3 [ 56.415398][ T6815] ? __warn.cold+0x5/0x45 [ 56.419697][ T6815] ? __warn+0xd6/0x1f2 [ 56.423753][ T6815] ? __nf_unregister_net_hook+0x1eb/0x500 [ 56.429446][ T6815] __warn.cold+0x20/0x45 [ 56.433681][ T6815] ? __nf_unregister_net_hook+0x1eb/0x500 [ 56.439374][ T6815] report_bug+0x1bd/0x210 [ 56.443679][ T6815] handle_bug+0x38/0x90 [ 56.447811][ T6815] ? __warn_printk+0xc6/0xf3 [ 56.452373][ T6815] exc_invalid_op+0x13/0x40 [ 56.456852][ T6815] asm_exc_invalid_op+0x12/0x20 [ 56.461675][ T6815] RIP: 0010:__nf_unregister_net_hook+0x1eb/0x500 [ 56.467977][ T6815] Code: 0f b6 14 02 48 89 c8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 09 03 00 00 8b 53 1c 89 ee 48 c7 c7 e0 d3 02 89 e8 37 92 d7 fa <0f> 0b e9 b1 00 00 00 e8 c9 51 06 fb 44 8b 3c 24 4c 89 f8 48 c1 e0 [ 56.487552][ T6815] RSP: 0018:ffffc900010973e0 EFLAGS: 00010286 [ 56.493605][ T6815] RAX: 0000000000000000 RBX: ffff8880a4e18400 RCX: 0000000000000000 [ 56.501549][ T6815] RDX: ffff88808e244200 RSI: ffffffff815d4f87 RDI: fffff52000212e6e [ 56.509508][ T6815] RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000 [ 56.517452][ T6815] R10: 00000000000005a0 R11: 0000000000000000 R12: ffffffff8a7a8048 [ 56.525397][ T6815] R13: 0000000000000000 R14: ffff8880a3aa9e00 R15: 0000000000000005 [ 56.533371][ T6815] ? vprintk_func+0x97/0x1a6 [ 56.537943][ T6815] nf_unregister_net_hook+0x59/0xa0 [ 56.543116][ T6815] nft_table_disable+0xb3/0x2d0 [ 56.547962][ T6815] nf_tables_commit+0x2dcf/0x4155 [ 56.552965][ T6815] ? nf_tables_setelem_notify.constprop.0+0x1e0/0x1e0 [ 56.559702][ T6815] ? __nla_parse+0x3d/0x4a [ 56.564093][ T6815] nfnetlink_rcv_batch+0xb2c/0x1de0 [ 56.569272][ T6815] ? __nf_tables_abort+0x2421/0x2f50 [ 56.574535][ T6815] ? nfnetlink_bind+0x2b0/0x2b0 [ 56.579385][ T6815] ? lock_is_held_type+0xb0/0xe0 [ 56.584300][ T6815] ? nla_get_range_signed+0x520/0x520 [ 56.589644][ T6815] ? netlink_deliver_tap+0x146/0xb70 [ 56.594902][ T6815] ? apparmor_capable+0x1d8/0x460 [ 56.599900][ T6815] ? security_capable+0x8f/0xc0 [ 56.604746][ T6815] ? __nla_parse+0x3d/0x4a [ 56.609134][ T6815] nfnetlink_rcv+0x3af/0x420 [ 56.613695][ T6815] ? nfnetlink_rcv_batch+0x1de0/0x1de0 [ 56.619132][ T6815] netlink_unicast+0x533/0x7d0 [ 56.623872][ T6815] ? netlink_attachskb+0x810/0x810 [ 56.628956][ T6815] ? _copy_from_iter_full+0x247/0x890 [ 56.634299][ T6815] ? __phys_addr+0x9a/0x110 [ 56.638780][ T6815] ? __phys_addr_symbol+0x2c/0x70 [ 56.643795][ T6815] ? __check_object_size+0x171/0x3e4 [ 56.649055][ T6815] netlink_sendmsg+0x856/0xd90 [ 56.653795][ T6815] ? netlink_unicast+0x7d0/0x7d0 [ 56.658707][ T6815] ? netlink_unicast+0x7d0/0x7d0 [ 56.663618][ T6815] sock_sendmsg+0xcf/0x120 [ 56.668011][ T6815] ____sys_sendmsg+0x6e8/0x810 [ 56.672767][ T6815] ? kernel_sendmsg+0x50/0x50 [ 56.677431][ T6815] ? do_recvmmsg+0x6d0/0x6d0 [ 56.681995][ T6815] ? lock_acquire+0x1f1/0xad0 [ 56.686647][ T6815] ? do_huge_pmd_anonymous_page+0x120d/0x2230 [ 56.692712][ T6815] ? find_held_lock+0x2d/0x110 [ 56.697449][ T6815] ___sys_sendmsg+0xf3/0x170 [ 56.702012][ T6815] ? sendmsg_copy_msghdr+0x160/0x160 [ 56.707272][ T6815] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 56.713226][ T6815] ? do_huge_pmd_anonymous_page+0x8ef/0x2230 [ 56.719186][ T6815] ? handle_mm_fault+0xad9/0x43f0 [ 56.724187][ T6815] ? find_held_lock+0x2d/0x110 [ 56.728924][ T6815] ? __fget_light+0x215/0x280 [ 56.733576][ T6815] __sys_sendmsg+0xe5/0x1b0 [ 56.738070][ T6815] ? __sys_sendmsg_sock+0xb0/0xb0 [ 56.743074][ T6815] ? do_syscall_64+0x1c/0xe0 [ 56.747655][ T6815] ? lockdep_hardirqs_on_prepare+0x3a2/0x590 [ 56.753607][ T6815] do_syscall_64+0x60/0xe0 [ 56.758000][ T6815] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 56.763863][ T6815] RIP: 0033:0x440709 [ 56.767743][ T6815] Code: Bad RIP value. [ 56.771782][ T6815] RSP: 002b:00007fff08370318 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 56.780180][ T6815] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440709 [ 56.788132][ T6815] RDX: 0000000000000000 RSI: 000000002000c2c0 RDI: 0000000000000003 [ 56.796079][ T6815] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 56.804025][ T6815] R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000401f10 [ 56.811993][ T6815] R13: 0000000000401fa0 R14: 0000000000000000 R15: 0000000000000000 [ 56.820752][ T6815] Kernel Offset: disabled [ 56.825123][ T6815] Rebooting in 86400 seconds..