DUID 00:04:22:6a:1f:62:54:25:21:a9:cf:52:ab:bd:c7:70:d9:1c forked to background, child pid 3174 [ 27.518696][ T3175] 8021q: adding VLAN 0 to HW filter on device bond0 [ 27.533218][ T3175] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.152' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 48.851082][ C0] TCP: request_sock_TCPv6: Possible SYN flooding on port 2. Sending cookies. Check SNMP counters. executing program executing program [ 49.026451][ C0] TCP: request_sock_TCPv6: Possible SYN flooding on port 2. Sending cookies. Check SNMP counters. executing program executing program executing program executing program executing program executing program [ 49.137107][ C0] TCP: request_sock_TCPv6: Possible SYN flooding on port 2. Sending cookies. Check SNMP counters. [ 49.186605][ C1] TCP: request_sock_TCPv6: Possible SYN flooding on port 2. Sending cookies. Check SNMP counters. executing program executing program [ 49.231883][ C0] TCP: request_sock_TCPv6: Possible SYN flooding on port 2. Sending cookies. Check SNMP counters. executing program [ 49.276817][ C1] TCP: request_sock_TCPv6: Possible SYN flooding on port 2. Sending cookies. Check SNMP counters. executing program [ 49.322829][ C0] TCP: request_sock_TCPv6: Possible SYN flooding on port 2. Sending cookies. Check SNMP counters. executing program [ 49.370844][ C1] TCP: request_sock_TCPv6: Possible SYN flooding on port 2. Sending cookies. Check SNMP counters. executing program [ 49.414479][ C1] TCP: request_sock_TCPv6: Possible SYN flooding on port 2. Sending cookies. Check SNMP counters. executing program [ 49.459010][ C1] TCP: request_sock_TCPv6: Possible SYN flooding on port 2. Sending cookies. Check SNMP counters. executing program executing program [ 49.635364][ C1] general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN [ 49.647090][ C1] KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] [ 49.655492][ C1] CPU: 1 PID: 3619 Comm: syz-executor911 Not tainted 5.18.0-rc3-syzkaller-00225-g165e3e17fe8f #0 [ 49.665978][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.676022][ C1] RIP: 0010:tcp_create_openreq_child+0xe16/0x16b0 [ 49.682501][ C1] Code: 48 c1 ea 03 80 3c 02 00 0f 85 e5 07 00 00 4c 8b b3 28 01 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d 7e 08 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 c9 07 00 00 48 8b 3c 24 48 89 de 41 ff 56 08 48 [ 49.702101][ C1] RSP: 0018:ffffc90000de05a8 EFLAGS: 00010202 [ 49.708160][ C1] RAX: dffffc0000000000 RBX: ffff88807e48a330 RCX: 0000000000000100 [ 49.716244][ C1] RDX: 0000000000000001 RSI: ffffffff87d67ff0 RDI: 0000000000000008 [ 49.724202][ C1] RBP: ffff888073766e38 R08: 0000000000000000 R09: 0000000000000000 [ 49.732162][ C1] R10: ffffffff87d67f00 R11: 0000000000000000 R12: ffff888073766600 [ 49.740145][ C1] R13: ffff88801a605268 R14: 0000000000000000 R15: 0000000000000000 [ 49.748198][ C1] FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 49.757124][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 49.763702][ C1] CR2: 00007f9e746d91d0 CR3: 000000007cd25000 CR4: 00000000003506e0 [ 49.771664][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 49.779625][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 49.787586][ C1] Call Trace: [ 49.790909][ C1] [ 49.793748][ C1] tcp_v6_syn_recv_sock+0x199/0x23b0 [ 49.799053][ C1] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 49.805291][ C1] ? xfrm_lookup_with_ifid+0xa6b/0x2240 [ 49.810867][ C1] ? tcp_v6_parse_md5_keys+0x7d0/0x7d0 [ 49.816331][ C1] ? ip6_finish_output2+0x14b0/0x1500 [ 49.821695][ C1] ? rcu_read_lock_sched_held+0x3a/0x70 [ 49.827253][ C1] ? kmem_cache_alloc+0x2ef/0x3b0 [ 49.832262][ C1] ? cookie_ecn_ok+0x54/0x140 [ 49.836930][ C1] tcp_get_cookie_sock+0xc9/0x850 [ 49.841941][ C1] ? cookie_ecn_ok+0x140/0x140 [ 49.846696][ C1] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 49.852934][ C1] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 49.859163][ C1] ? tcp_select_initial_window+0x1e7/0x380 [ 49.864961][ C1] cookie_v6_check+0x15c3/0x2340 [ 49.869891][ C1] ? cookie_v6_init_sequence+0xf0/0xf0 [ 49.875370][ C1] ? sk_filter_trim_cap+0x372/0x9a0 [ 49.880561][ C1] ? lock_downgrade+0x6e0/0x6e0 [ 49.885420][ C1] ? bpf_xdp_redirect+0x160/0x160 [ 49.890444][ C1] ? tcp_v6_do_rcv+0xff5/0x13b0 [ 49.895293][ C1] tcp_v6_do_rcv+0x1148/0x13b0 [ 49.900055][ C1] ? __sanitizer_cov_trace_const_cmp8+0x41/0x70 [ 49.906300][ C1] ? tcp_v6_fill_cb+0x393/0x4a0 [ 49.911142][ C1] tcp_v6_rcv+0x3305/0x3840 [ 49.915640][ C1] ? tcp_v6_err+0x1850/0x1850 [ 49.920303][ C1] ? rawv6_rcv+0x1290/0x1290 [ 49.924884][ C1] ip6_protocol_deliver_rcu+0x2e9/0x1900 [ 49.930513][ C1] ? batadv_hard_if_event.cold+0x40/0xb1 [ 49.936151][ C1] ip6_input_finish+0x14c/0x2c0 [ 49.940996][ C1] ip6_input+0x9c/0xd0 [ 49.945146][ C1] ipv6_rcv+0x27f/0x3b0 [ 49.949294][ C1] ? ip6_rcv_core+0x1c50/0x1c50 [ 49.954135][ C1] __netif_receive_skb_one_core+0x114/0x180 [ 49.960024][ C1] ? __netif_receive_skb_core+0x3a60/0x3a60 [ 49.965917][ C1] ? mark_held_locks+0x9f/0xe0 [ 49.970678][ C1] ? rwlock_bug.part.0+0x90/0x90 [ 49.975610][ C1] __netif_receive_skb+0x24/0x1b0 [ 49.980628][ C1] process_backlog+0x3a0/0x7c0 [ 49.985383][ C1] ? mark_held_locks+0x9f/0xe0 [ 49.990141][ C1] __napi_poll+0xb3/0x6e0 [ 49.994467][ C1] net_rx_action+0x8ec/0xc60 [ 49.999046][ C1] ? napi_threaded_poll+0x520/0x520 [ 50.004241][ C1] __do_softirq+0x29b/0x9c2 [ 50.008745][ C1] do_softirq.part.0+0xde/0x130 [ 50.013597][ C1] [ 50.016629][ C1] [ 50.019545][ C1] ? ip6_finish_output2+0x58e/0x1500 [ 50.024826][ C1] __local_bh_enable_ip+0x102/0x120 [ 50.030023][ C1] ip6_finish_output2+0x5bc/0x1500 [ 50.035140][ C1] __ip6_finish_output+0x61e/0xe90 [ 50.040251][ C1] ip6_finish_output+0x32/0x280 [ 50.045091][ C1] ip6_output+0x1e4/0x530 [ 50.049409][ C1] ip6_xmit+0x11d4/0x1a50 [ 50.053727][ C1] ? ip6_sk_dst_lookup_flow+0x980/0x980 [ 50.059261][ C1] ? lock_release+0x720/0x720 [ 50.063930][ C1] ? inet6_csk_route_socket+0x6eb/0xf90 [ 50.069472][ C1] ? inet6_csk_route_req+0x7f0/0x7f0 [ 50.074746][ C1] ? is_bpf_text_address+0x99/0x170 [ 50.079935][ C1] ? inet6_csk_xmit+0x349/0x6c0 [ 50.084770][ C1] inet6_csk_xmit+0x3b1/0x6c0 [ 50.089434][ C1] ? inet6_csk_update_pmtu+0x180/0x180 [ 50.094893][ C1] ? __skb_clone+0x597/0x780 [ 50.099493][ C1] ? csum_ipv6_magic+0x1b/0x70 [ 50.104251][ C1] __tcp_transmit_skb+0x190e/0x38b0 [ 50.109434][ C1] ? __tcp_select_window+0xdb0/0xdb0 [ 50.114704][ C1] ? tcp_write_xmit+0x34/0x5fe0 [ 50.119539][ C1] ? lockdep_hardirqs_on+0x79/0x100 [ 50.124720][ C1] ? __sanitizer_cov_trace_cmp4+0x1c/0x70 [ 50.130420][ C1] ? __sanitizer_cov_trace_cmp8+0x1d/0x70 [ 50.136122][ C1] tcp_write_xmit+0xd93/0x5fe0 [ 50.140904][ C1] ? tcp_trim_head+0x5c0/0x5c0 [ 50.145653][ C1] __tcp_push_pending_frames+0xaa/0x390 [ 50.151192][ C1] tcp_send_fin+0x117/0xb70 [ 50.155676][ C1] __tcp_close+0xae7/0x12b0 [ 50.160168][ C1] tcp_close+0x29/0xc0 [ 50.164219][ C1] inet_release+0x12e/0x280 [ 50.168706][ C1] inet6_release+0x4c/0x70 [ 50.173104][ C1] __sock_release+0xcd/0x280 [ 50.177694][ C1] sock_close+0x18/0x20 [ 50.181830][ C1] __fput+0x277/0x9d0 [ 50.185795][ C1] ? __sock_release+0x280/0x280 [ 50.190631][ C1] task_work_run+0xdd/0x1a0 [ 50.195120][ C1] do_exit+0xaff/0x2a00 [ 50.199265][ C1] ? lock_downgrade+0x6e0/0x6e0 [ 50.204100][ C1] ? mm_update_next_owner+0x7a0/0x7a0 [ 50.209458][ C1] do_group_exit+0xd2/0x2f0 [ 50.213943][ C1] __x64_sys_exit_group+0x3a/0x50 [ 50.218949][ C1] do_syscall_64+0x35/0xb0 [ 50.223352][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 50.229234][ C1] RIP: 0033:0x7f9e74664b59 [ 50.233633][ C1] Code: Unable to access opcode bytes at RIP 0x7f9e74664b2f. [ 50.240976][ C1] RSP: 002b:00007ffdd0998488 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 50.249377][ C1] RAX: ffffffffffffffda RBX: 00007f9e746d8330 RCX: 00007f9e74664b59 [ 50.257339][ C1] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 [ 50.265301][ C1] RBP: 0000000000000000 R08: ffffffffffffffc0 R09: 000000000000001c [ 50.273287][ C1] R10: 0000000020b63fe4 R11: 0000000000000246 R12: 00007f9e746d8330 [ 50.281246][ C1] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 50.289211][ C1] [ 50.292217][ C1] Modules linked in: [ 50.296196][ C1] ---[ end trace 0000000000000000 ]--- [ 50.301666][ C1] RIP: 0010:tcp_create_openreq_child+0xe16/0x16b0 [ 50.308151][ C1] Code: 48 c1 ea 03 80 3c 02 00 0f 85 e5 07 00 00 4c 8b b3 28 01 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d 7e 08 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 c9 07 00 00 48 8b 3c 24 48 89 de 41 ff 56 08 48 [ 50.327797][ C1] RSP: 0018:ffffc90000de05a8 EFLAGS: 00010202 [ 50.333879][ C1] RAX: dffffc0000000000 RBX: ffff88807e48a330 RCX: 0000000000000100 [ 50.341880][ C1] RDX: 0000000000000001 RSI: ffffffff87d67ff0 RDI: 0000000000000008 [ 50.349881][ C1] RBP: ffff888073766e38 R08: 0000000000000000 R09: 0000000000000000 [ 50.357870][ C1] R10: ffffffff87d67f00 R11: 0000000000000000 R12: ffff888073766600 [ 50.365880][ C1] R13: ffff88801a605268 R14: 0000000000000000 R15: 0000000000000000 [ 50.373891][ C1] FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 50.382847][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.389452][ C1] CR2: 00007f9e746d91d0 CR3: 000000007cd25000 CR4: 00000000003506e0 [ 50.397414][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 50.405397][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 50.413393][ C1] Kernel panic - not syncing: Fatal exception in interrupt [ 50.420744][ C1] Kernel Offset: disabled [ 50.425073][ C1] Rebooting in 86400 seconds..