./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor710004185 <...> Warning: Permanently added '10.128.1.91' (ED25519) to the list of known hosts. execve("./syz-executor710004185", ["./syz-executor710004185"], 0x7ffc0490b160 /* 10 vars */) = 0 brk(NULL) = 0x5555561af000 brk(0x5555561afd00) = 0x5555561afd00 arch_prctl(ARCH_SET_FS, 0x5555561af380) = 0 set_tid_address(0x5555561af650) = 5040 set_robust_list(0x5555561af660, 24) = 0 rseq(0x5555561afca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor710004185", 4096) = 27 getrandom("\x52\xc8\x08\xf6\xb9\x00\xfa\x2d", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555561afd00 brk(0x5555561d0d00) = 0x5555561d0d00 brk(0x5555561d1000) = 0x5555561d1000 mprotect(0x7fd36ed82000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 3 [ 61.971594][ T5040] netlink: 8 bytes leftover after parsing attributes in process `syz-executor710'. [ 61.982265][ T5040] ------------[ cut here ]------------ [ 61.987738][ T5040] WARNING: CPU: 0 PID: 5040 at net/core/dev.c:9593 dev_index_reserve+0x1a2/0x1c0 [ 61.996862][ T5040] Modules linked in: [ 62.000738][ T5040] CPU: 0 PID: 5040 Comm: syz-executor710 Not tainted 6.5.0-rc6-next-20230818-syzkaller #0 [ 62.010634][ T5040] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 62.020703][ T5040] RIP: 0010:dev_index_reserve+0x1a2/0x1c0 [ 62.026452][ T5040] Code: 00 31 d2 4d 8d 45 50 b9 ff ff ff 7f 48 8d 74 24 20 e8 42 24 02 02 4c 89 e7 89 c3 e8 c8 24 11 02 e9 48 ff ff ff e8 de ee 58 f9 <0f> 0b bb ea ff ff ff e9 52 ff ff ff e8 2d 6d 0d 02 66 66 2e 0f 1f [ 62.046105][ T5040] RSP: 0018:ffffc90003cdf168 EFLAGS: 00010293 [ 62.052175][ T5040] RAX: 0000000000000000 RBX: 00000000ffffffff RCX: 0000000000000000 [ 62.060162][ T5040] RDX: ffff88807e700000 RSI: ffffffff882ee492 RDI: 0000000000000005 [ 62.068153][ T5040] RBP: 1ffff9200079be2d R08: 0000000000000005 R09: 0000000000000000 [ 62.076144][ T5040] R10: 00000000ffffffff R11: ffffffff88376409 R12: ffff88823bdc8010 [ 62.084117][ T5040] R13: ffffffff925fef80 R14: ffff88823bdc8000 R15: ffff88823bdc80f8 [ 62.092121][ T5040] FS: 00005555561af380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 62.101090][ T5040] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 62.107717][ T5040] CR2: 000055746a57d798 CR3: 0000000072477000 CR4: 00000000003506f0 [ 62.115716][ T5040] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 62.123693][ T5040] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 62.131692][ T5040] Call Trace: [ 62.134972][ T5040] [ 62.137918][ T5040] ? show_regs+0x8f/0xa0 [ 62.142176][ T5040] ? __warn+0xe6/0x380 [ 62.146263][ T5040] ? dev_index_reserve+0x1a2/0x1c0 [ 62.151389][ T5040] ? report_bug+0x3bc/0x580 [ 62.155914][ T5040] ? handle_bug+0x3c/0x70 [ 62.160255][ T5040] ? exc_invalid_op+0x17/0x40 [ 62.164922][ T5040] ? asm_exc_invalid_op+0x1a/0x20 [ 62.169972][ T5040] ? rtnetlink_rcv_msg+0x439/0xd30 [ 62.175102][ T5040] ? dev_index_reserve+0x1a2/0x1c0 [ 62.180232][ T5040] ? dev_index_reserve+0x1a2/0x1c0 [ 62.185369][ T5040] ? dev_index_reserve+0x1a2/0x1c0 [ 62.190472][ T5040] ? tc_run+0x530/0x530 [ 62.194617][ T5040] register_netdevice+0x69a/0x1490 [ 62.199750][ T5040] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 62.205670][ T5040] ? ip_tunnel_find+0x414/0x4d0 [ 62.210515][ T5040] ip_tunnel_newlink+0x2dc/0x790 [ 62.215488][ T5040] ? ip_tunnel_init_net+0x5e0/0x5e0 [ 62.220702][ T5040] ? ipgre_netlink_parms.constprop.0+0xadf/0xd40 [ 62.227061][ T5040] ipgre_newlink+0x14c/0x160 [ 62.231664][ T5040] ? ipgre_netlink_parms.constprop.0+0xd40/0xd40 [ 62.238038][ T5040] ? rtnl_create_link+0xa6d/0xfd0 [ 62.243079][ T5040] ? ipgre_netlink_parms.constprop.0+0xd40/0xd40 [ 62.249446][ T5040] __rtnl_newlink+0x115e/0x18c0 [ 62.254321][ T5040] ? rtnl_link_unregister+0x260/0x260 [ 62.259740][ T5040] rtnl_newlink+0x67/0xa0 [ 62.264079][ T5040] ? __rtnl_newlink+0x18c0/0x18c0 [ 62.269121][ T5040] rtnetlink_rcv_msg+0x439/0xd30 [ 62.274072][ T5040] ? rtnl_getlink+0xb40/0xb40 [ 62.278775][ T5040] netlink_rcv_skb+0x16b/0x440 [ 62.283551][ T5040] ? rtnl_getlink+0xb40/0xb40 [ 62.288251][ T5040] ? netlink_ack+0x1370/0x1370 [ 62.293029][ T5040] ? lock_sync+0x190/0x190 [ 62.297472][ T5040] ? netlink_deliver_tap+0x1b1/0xd10 [ 62.302773][ T5040] netlink_unicast+0x536/0x810 [ 62.307559][ T5040] ? netlink_attachskb+0x870/0x870 [ 62.312683][ T5040] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 62.318600][ T5040] ? __phys_addr_symbol+0x30/0x70 [ 62.323635][ T5040] ? __check_object_size+0x323/0x730 [ 62.328940][ T5040] netlink_sendmsg+0x93c/0xe40 [ 62.333719][ T5040] ? netlink_unicast+0x810/0x810 [ 62.338679][ T5040] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 62.343979][ T5040] ? netlink_unicast+0x810/0x810 [ 62.348948][ T5040] sock_sendmsg+0xd9/0x180 [ 62.353380][ T5040] ____sys_sendmsg+0x6ac/0x940 [ 62.358162][ T5040] ? copy_msghdr_from_user+0x10b/0x160 [ 62.363632][ T5040] ? kernel_sendmsg+0x50/0x50 [ 62.368343][ T5040] ? finish_task_switch.isra.0+0x216/0xc90 [ 62.374165][ T5040] ? __switch_to+0x73d/0x1340 [ 62.378883][ T5040] ___sys_sendmsg+0x135/0x1d0 [ 62.383580][ T5040] ? do_recvmmsg+0x740/0x740 [ 62.388210][ T5040] ? lock_sync+0x190/0x190 [ 62.392638][ T5040] ? ptrace_stop.part.0+0x4b4/0x8f0 [ 62.397862][ T5040] ? __fget_light+0x1fc/0x260 [ 62.402546][ T5040] __sys_sendmsg+0x117/0x1e0 [ 62.407163][ T5040] ? __sys_sendmsg_sock+0x30/0x30 [ 62.412198][ T5040] ? ptrace_notify+0xf4/0x130 [ 62.416899][ T5040] ? _raw_spin_unlock_irq+0x2e/0x50 [ 62.422106][ T5040] ? ptrace_notify+0xf4/0x130 [ 62.426801][ T5040] do_syscall_64+0x38/0xb0 [ 62.431230][ T5040] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 62.437141][ T5040] RIP: 0033:0x7fd36ed0f369 [ 62.441559][ T5040] Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 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 b8 ff ff ff f7 d8 64 89 01 48 [ 62.461181][ T5040] RSP: 002b:00007ffca01e06d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 62.469704][ T5040] RAX: ffffffffffffffda RBX: 00007ffca01e08a8 RCX: 00007fd36ed0f369 [ 62.477692][ T5040] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 62.485680][ T5040] RBP: 00007fd36ed82610 R08: 0000000000000000 R09: 00007ffca01e08a8 [ 62.493636][ T5040] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 62.501632][ T5040] R13: 00007ffca01e0898 R14: 0000000000000001 R15: 0000000000000001 [ 62.509637][ T5040] [ 62.512668][ T5040] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 62.519939][ T5040] CPU: 0 PID: 5040 Comm: syz-executor710 Not tainted 6.5.0-rc6-next-20230818-syzkaller #0 [ 62.529829][ T5040] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 62.539879][ T5040] Call Trace: [ 62.543151][ T5040] [ 62.546077][ T5040] dump_stack_lvl+0xd9/0x1b0 [ 62.550677][ T5040] panic+0x6a6/0x750 [ 62.554575][ T5040] ? panic_smp_self_stop+0xa0/0xa0 [ 62.559695][ T5040] ? dev_index_reserve+0x1a2/0x1c0 [ 62.564815][ T5040] check_panic_on_warn+0xab/0xb0 [ 62.569756][ T5040] __warn+0xf2/0x380 [ 62.573655][ T5040] ? dev_index_reserve+0x1a2/0x1c0 [ 62.578797][ T5040] report_bug+0x3bc/0x580 [ 62.583130][ T5040] handle_bug+0x3c/0x70 [ 62.587291][ T5040] exc_invalid_op+0x17/0x40 [ 62.591797][ T5040] asm_exc_invalid_op+0x1a/0x20 [ 62.596654][ T5040] RIP: 0010:dev_index_reserve+0x1a2/0x1c0 [ 62.602382][ T5040] Code: 00 31 d2 4d 8d 45 50 b9 ff ff ff 7f 48 8d 74 24 20 e8 42 24 02 02 4c 89 e7 89 c3 e8 c8 24 11 02 e9 48 ff ff ff e8 de ee 58 f9 <0f> 0b bb ea ff ff ff e9 52 ff ff ff e8 2d 6d 0d 02 66 66 2e 0f 1f [ 62.621991][ T5040] RSP: 0018:ffffc90003cdf168 EFLAGS: 00010293 [ 62.628056][ T5040] RAX: 0000000000000000 RBX: 00000000ffffffff RCX: 0000000000000000 [ 62.636023][ T5040] RDX: ffff88807e700000 RSI: ffffffff882ee492 RDI: 0000000000000005 [ 62.643999][ T5040] RBP: 1ffff9200079be2d R08: 0000000000000005 R09: 0000000000000000 [ 62.651970][ T5040] R10: 00000000ffffffff R11: ffffffff88376409 R12: ffff88823bdc8010 [ 62.659938][ T5040] R13: ffffffff925fef80 R14: ffff88823bdc8000 R15: ffff88823bdc80f8 [ 62.667911][ T5040] ? rtnetlink_rcv_msg+0x439/0xd30 [ 62.673032][ T5040] ? dev_index_reserve+0x1a2/0x1c0 [ 62.678154][ T5040] ? dev_index_reserve+0x1a2/0x1c0 [ 62.683273][ T5040] ? tc_run+0x530/0x530 [ 62.687438][ T5040] register_netdevice+0x69a/0x1490 [ 62.692556][ T5040] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 62.698454][ T5040] ? ip_tunnel_find+0x414/0x4d0 [ 62.703327][ T5040] ip_tunnel_newlink+0x2dc/0x790 [ 62.708296][ T5040] ? ip_tunnel_init_net+0x5e0/0x5e0 [ 62.713615][ T5040] ? ipgre_netlink_parms.constprop.0+0xadf/0xd40 [ 62.719957][ T5040] ipgre_newlink+0x14c/0x160 [ 62.724564][ T5040] ? ipgre_netlink_parms.constprop.0+0xd40/0xd40 [ 62.730919][ T5040] ? rtnl_create_link+0xa6d/0xfd0 [ 62.735951][ T5040] ? ipgre_netlink_parms.constprop.0+0xd40/0xd40 [ 62.742297][ T5040] __rtnl_newlink+0x115e/0x18c0 [ 62.747161][ T5040] ? rtnl_link_unregister+0x260/0x260 [ 62.752549][ T5040] rtnl_newlink+0x67/0xa0 [ 62.756880][ T5040] ? __rtnl_newlink+0x18c0/0x18c0 [ 62.761906][ T5040] rtnetlink_rcv_msg+0x439/0xd30 [ 62.766849][ T5040] ? rtnl_getlink+0xb40/0xb40 [ 62.771536][ T5040] netlink_rcv_skb+0x16b/0x440 [ 62.776309][ T5040] ? rtnl_getlink+0xb40/0xb40 [ 62.780994][ T5040] ? netlink_ack+0x1370/0x1370 [ 62.785763][ T5040] ? lock_sync+0x190/0x190 [ 62.790191][ T5040] ? netlink_deliver_tap+0x1b1/0xd10 [ 62.795483][ T5040] netlink_unicast+0x536/0x810 [ 62.800257][ T5040] ? netlink_attachskb+0x870/0x870 [ 62.805375][ T5040] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 62.811289][ T5040] ? __phys_addr_symbol+0x30/0x70 [ 62.816320][ T5040] ? __check_object_size+0x323/0x730 [ 62.821619][ T5040] netlink_sendmsg+0x93c/0xe40 [ 62.826395][ T5040] ? netlink_unicast+0x810/0x810 [ 62.831349][ T5040] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 62.836661][ T5040] ? netlink_unicast+0x810/0x810 [ 62.841604][ T5040] sock_sendmsg+0xd9/0x180 [ 62.846023][ T5040] ____sys_sendmsg+0x6ac/0x940 [ 62.850790][ T5040] ? copy_msghdr_from_user+0x10b/0x160 [ 62.856256][ T5040] ? kernel_sendmsg+0x50/0x50 [ 62.860936][ T5040] ? finish_task_switch.isra.0+0x216/0xc90 [ 62.866745][ T5040] ? __switch_to+0x73d/0x1340 [ 62.871428][ T5040] ___sys_sendmsg+0x135/0x1d0 [ 62.876114][ T5040] ? do_recvmmsg+0x740/0x740 [ 62.880716][ T5040] ? lock_sync+0x190/0x190 [ 62.885137][ T5040] ? ptrace_stop.part.0+0x4b4/0x8f0 [ 62.890353][ T5040] ? __fget_light+0x1fc/0x260 [ 62.895040][ T5040] __sys_sendmsg+0x117/0x1e0 [ 62.899646][ T5040] ? __sys_sendmsg_sock+0x30/0x30 [ 62.904676][ T5040] ? ptrace_notify+0xf4/0x130 [ 62.909360][ T5040] ? _raw_spin_unlock_irq+0x2e/0x50 [ 62.914561][ T5040] ? ptrace_notify+0xf4/0x130 [ 62.919239][ T5040] do_syscall_64+0x38/0xb0 [ 62.923675][ T5040] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 62.929581][ T5040] RIP: 0033:0x7fd36ed0f369 [ 62.933995][ T5040] Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 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 b8 ff ff ff f7 d8 64 89 01 48 [ 62.953601][ T5040] RSP: 002b:00007ffca01e06d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 62.962015][ T5040] RAX: ffffffffffffffda RBX: 00007ffca01e08a8 RCX: 00007fd36ed0f369 [ 62.969985][ T5040] RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 [ 62.977951][ T5040] RBP: 00007fd36ed82610 R08: 0000000000000000 R09: 00007ffca01e08a8 [ 62.985919][ T5040] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 62.993884][ T5040] R13: 00007ffca01e0898 R14: 0000000000000001 R15: 0000000000000001 [ 63.001862][ T5040] [ 63.005063][ T5040] Kernel Offset: disabled [ 63.009379][ T5040] Rebooting in 86400 seconds..