./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2491661100 <...> Warning: Permanently added '10.128.1.200' (ECDSA) to the list of known hosts. execve("./syz-executor2491661100", ["./syz-executor2491661100"], 0x7ffceeffc6a0 /* 10 vars */) = 0 brk(NULL) = 0x555556b0e000 brk(0x555556b0ec40) = 0x555556b0ec40 arch_prctl(ARCH_SET_FS, 0x555556b0e300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor2491661100", 4096) = 28 brk(0x555556b2fc40) = 0x555556b2fc40 brk(0x555556b30000) = 0x555556b30000 mprotect(0x7fd34b59c000, 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 socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC) = 4 sendto(4, [{nlmsg_len=36, nlmsg_type=0x10 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}, "\x03\x00\x00\x00\x0d\x00\x02\x00\x6e\x6c\x38\x30\x32\x31\x35\x34\x00\x00\x00\x00"], 36, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12) = 36 recvfrom(4, [{nlmsg_len=784, nlmsg_type=nlctrl, nlmsg_flags=0, nlmsg_seq=0, nlmsg_pid=5068}, "\x01\x02\x00\x00\x0d\x00\x02\x00\x6e\x6c\x38\x30\x32\x31\x35\x34\x00\x00\x00\x00\x06\x00\x01\x00\x1d\x00\x00\x00\x08\x00\x03\x00\x01\x00\x00\x00\x08\x00\x04\x00\x00\x00\x00\x00\x08\x00\x05\x00\x2e\x00\x00\x00\x98\x02\x06\x00\x14\x00\x01\x00\x08\x00\x01\x00\x01\x00\x00\x00\x08\x00\x02\x00\x0e\x00\x00\x00\x14\x00\x02\x00\x08\x00\x01\x00\x05\x00\x00\x00\x08\x00\x02\x00\x0e\x00\x00\x00\x14\x00\x03\x00"...], 4096, 0, NULL, NULL) = 784 recvfrom(4, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=5068}, {error=0, msg={nlmsg_len=36, nlmsg_type=nlctrl, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 access("/proc/net", R_OK) = 0 access("/proc/net/unix", R_OK) = 0 socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0) = 5 ioctl(5, SIOCGIFINDEX, {ifr_name="wpan0", ifr_ifindex=11}) = 0 close(5) = 0 sendto(4, [{nlmsg_len=36, nlmsg_type=nl802154, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}, "\x0b\x00\x00\x00\x08\x00\x03\x00\x0b\x00\x00\x00\x06\x00\x0a\x00\xa0\xaa\x00\x00"], 36, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12) = 36 recvfrom(4, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=5068}, {error=0, msg={nlmsg_len=36, nlmsg_type=nl802154, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0) = 5 ioctl(5, SIOCGIFINDEX, {ifr_name="wpan0", ifr_ifindex=11}) = 0 close(5) = 0 sendto(3, [{nlmsg_len=44, nlmsg_type=0x10 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}, "\x00\x00\x00\x00\x0b\x00\x00\x00\x01\x00\x00\x00\x01\x00\x00\x00\x0c\x00\x01\x00\x02\x00\xaa\xaa\xaa\xaa\xaa\xaa"], 44, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12) = 44 recvfrom(3, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=5068}, {error=0, msg={nlmsg_len=44, nlmsg_type=RTM_NEWLINK, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 sendto(3, [{nlmsg_len=68, nlmsg_type=RTM_NEWLINK, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|NLM_F_EXCL|NLM_F_CREATE, nlmsg_seq=0, nlmsg_pid=0}, {ifi_family=AF_UNSPEC, ifi_type=ARPHRD_NETROM, ifi_index=0, ifi_flags=0, ifi_change=0}, [[{nla_len=11, nla_type=IFLA_IFNAME}, "lowpan0"...], [{nla_len=16, nla_type=IFLA_LINKINFO}, [{nla_len=10, nla_type=IFLA_INFO_KIND}, "lowpan"...]], [{nla_len=8, nla_type=IFLA_LINK}, 11]]], 68, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12) = 68 recvfrom(3, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=5068}, {error=0, msg={nlmsg_len=68, nlmsg_type=RTM_NEWLINK, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK|NLM_F_EXCL|NLM_F_CREATE, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0) = 5 ioctl(5, SIOCGIFINDEX, {ifr_name="wpan1", ifr_ifindex=12}) = 0 close(5) = 0 sendto(4, [{nlmsg_len=36, nlmsg_type=nl802154, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}, "\x0b\x00\x00\x00\x08\x00\x03\x00\x0c\x00\x00\x00\x06\x00\x0a\x00\xa1\xaa\x00\x00"], 36, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12) = 36 recvfrom(4, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=5068}, {error=0, msg={nlmsg_len=36, nlmsg_type=nl802154, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0) = 5 ioctl(5, SIOCGIFINDEX, {ifr_name="wpan1", ifr_ifindex=12}) = 0 close(5) = 0 sendto(3, [{nlmsg_len=44, nlmsg_type=RTM_NEWLINK, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}, {ifi_family=AF_UNSPEC, ifi_type=ARPHRD_NETROM, ifi_index=if_nametoindex("wpan1"), ifi_flags=IFF_UP, ifi_change=0x1}, [{nla_len=12, nla_type=IFLA_ADDRESS}, 02:01:aa:aa:aa:aa:aa]], 44, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12) = 44 recvfrom(3, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=5068}, {error=0, msg={nlmsg_len=44, nlmsg_type=RTM_NEWLINK, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 close(3) = 0 close(4) = 0 socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC) = 3 socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC) = 4 sendto(4, [{nlmsg_len=36, nlmsg_type=0x10 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}, "\x03\x00\x00\x00\x0d\x00\x02\x00\x6e\x6c\x38\x30\x32\x31\x35\x34\x00\x00\x00\x00"], 36, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12) = 36 recvfrom(4, [{nlmsg_len=784, nlmsg_type=nlctrl, nlmsg_flags=0, nlmsg_seq=0, nlmsg_pid=5068}, "\x01\x02\x00\x00\x0d\x00\x02\x00\x6e\x6c\x38\x30\x32\x31\x35\x34\x00\x00\x00\x00\x06\x00\x01\x00\x1d\x00\x00\x00\x08\x00\x03\x00\x01\x00\x00\x00\x08\x00\x04\x00\x00\x00\x00\x00\x08\x00\x05\x00\x2e\x00\x00\x00\x98\x02\x06\x00\x14\x00\x01\x00\x08\x00\x01\x00\x01\x00\x00\x00\x08\x00\x02\x00\x0e\x00\x00\x00\x14\x00\x02\x00\x08\x00\x01\x00\x05\x00\x00\x00\x08\x00\x02\x00\x0e\x00\x00\x00\x14\x00\x03\x00"...], 4096, 0, NULL, NULL) = 784 recvfrom(4, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=5068}, {error=0, msg={nlmsg_len=36, nlmsg_type=nlctrl, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}}], 4096, 0, NULL, NULL) = 36 close(4) = 0 syzkaller login: [ 54.505304][ T5068] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN [ 54.517053][ T5068] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 54.525456][ T5068] CPU: 1 PID: 5068 Comm: syz-executor249 Not tainted 6.2.0-syzkaller-12485-gf3a2439f20d9 #0 [ 54.535527][ T5068] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023 [ 54.545571][ T5068] RIP: 0010:nl802154_trigger_scan+0x152/0xbd0 [ 54.551670][ T5068] Code: 00 00 00 49 03 1f 48 89 d8 48 c1 e8 03 42 80 3c 30 00 74 08 48 89 df e8 1c 11 71 f7 48 8b 1b 48 83 c3 04 48 89 d8 48 c1 e8 03 <42> 0f b6 04 30 84 c0 0f 85 6c 07 00 00 0f b6 1b 31 ff 89 de e8 15 [ 54.571264][ T5068] RSP: 0018:ffffc90003acf438 EFLAGS: 00010247 [ 54.577325][ T5068] RAX: 0000000000000000 RBX: 0000000000000004 RCX: ffff88801f590000 [ 54.585302][ T5068] RDX: ffff88801f590000 RSI: 0000000000000000 RDI: 0000000000000001 [ 54.593305][ T5068] RBP: 1ffff92000759ec6 R08: ffffffff8a724b72 R09: ffffed10043c28c1 [ 54.601270][ T5068] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888021e14c90 [ 54.609235][ T5068] R13: ffffc90003acf610 R14: dffffc0000000000 R15: ffffc90003acf630 [ 54.617202][ T5068] FS: 0000555556b0e300(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 54.626123][ T5068] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.632696][ T5068] CR2: 00007f79c14d66a8 CR3: 0000000029ae4000 CR4: 00000000003506e0 [ 54.640675][ T5068] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 54.648632][ T5068] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 54.656593][ T5068] Call Trace: [ 54.659866][ T5068] [ 54.662785][ T5068] ? genl_family_rcv_msg_attrs_parse+0x1d1/0x290 [ 54.669109][ T5068] genl_rcv_msg+0xc33/0xf90 [ 54.673608][ T5068] ? genl_bind+0x360/0x360 [ 54.678015][ T5068] ? __stack_depot_save+0x20/0x650 [ 54.683121][ T5068] ? kasan_set_track+0x61/0x70 [ 54.687872][ T5068] ? kasan_set_track+0x4f/0x70 [ 54.692622][ T5068] ? __kasan_slab_alloc+0x66/0x70 [ 54.697655][ T5068] ? mark_lock+0x9a/0x340 [ 54.701972][ T5068] ? __sys_sendmsg+0x2ad/0x390 [ 54.706737][ T5068] ? nl802154_exit+0x20/0x20 [ 54.711337][ T5068] ? nl802154_set_ackreq_default+0x530/0x530 [ 54.717310][ T5068] ? nl802154_pre_doit+0xa90/0xa90 [ 54.722418][ T5068] netlink_rcv_skb+0x1df/0x430 [ 54.727170][ T5068] ? genl_bind+0x360/0x360 [ 54.731576][ T5068] ? netlink_ack+0x12a0/0x12a0 [ 54.736590][ T5068] ? __lock_acquire+0x1f80/0x1f80 [ 54.741604][ T5068] ? __down_read_common+0x184/0x2c0 [ 54.746812][ T5068] genl_rcv+0x28/0x40 [ 54.750781][ T5068] netlink_unicast+0x7c3/0x990 [ 54.755536][ T5068] ? netlink_detachskb+0x90/0x90 [ 54.760463][ T5068] ? __phys_addr_symbol+0x2f/0x70 [ 54.765498][ T5068] ? bpf_lsm_netlink_send+0x9/0x10 [ 54.770692][ T5068] netlink_sendmsg+0xa2a/0xd60 [ 54.775447][ T5068] ? netlink_getsockopt+0x9e0/0x9e0 [ 54.780635][ T5068] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 54.785926][ T5068] ? security_socket_sendmsg+0x81/0xa0 [ 54.791397][ T5068] ? netlink_getsockopt+0x9e0/0x9e0 [ 54.796583][ T5068] ____sys_sendmsg+0x58f/0x890 [ 54.801371][ T5068] ? __sys_sendmsg_sock+0x30/0x30 [ 54.806387][ T5068] ? rcu_read_lock_sched_held+0x8d/0x130 [ 54.812014][ T5068] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 54.817989][ T5068] ? __fdget+0x152/0x210 [ 54.822231][ T5068] __sys_sendmsg+0x2ad/0x390 [ 54.826815][ T5068] ? ____sys_sendmsg+0x890/0x890 [ 54.831748][ T5068] ? print_irqtrace_events+0x220/0x220 [ 54.837194][ T5068] ? ptrace_stop+0x75a/0x970 [ 54.841779][ T5068] ? _raw_spin_unlock_irq+0x2e/0x50 [ 54.846971][ T5068] ? ptrace_notify+0x278/0x380 [ 54.851908][ T5068] ? syscall_enter_from_user_mode+0x32/0x2c0 [ 54.857964][ T5068] ? syscall_enter_from_user_mode+0x8c/0x2c0 [ 54.863936][ T5068] do_syscall_64+0x41/0xc0 [ 54.868346][ T5068] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 54.874246][ T5068] RIP: 0033:0x7fd34b529e69 [ 54.878648][ T5068] Code: 28 c3 e8 5a 14 00 00 66 2e 0f 1f 84 00 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 c0 ff ff ff f7 d8 64 89 01 48 [ 54.898416][ T5068] RSP: 002b:00007ffcc59648b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 54.907346][ T5068] RAX: ffffffffffffffda RBX: 00007fd34b5a2380 RCX: 00007fd34b529e69 [ 54.915323][ T5068] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 [ 54.923288][ T5068] RBP: 0000000000000001 R08: 0000000000000000 R09: 001d00000000000c [ 54.931262][ T5068] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 54.939220][ T5068] R13: 0000000000000003 R14: 00007ffcc59648d7 R15: 00007ffcc59648da [ 54.947185][ T5068] [ 54.950192][ T5068] Modules linked in: [ 54.954415][ T5068] ---[ end trace 0000000000000000 ]--- [ 54.960276][ T5068] RIP: 0010:nl802154_trigger_scan+0x152/0xbd0 [ 54.966379][ T5068] Code: 00 00 00 49 03 1f 48 89 d8 48 c1 e8 03 42 80 3c 30 00 74 08 48 89 df e8 1c 11 71 f7 48 8b 1b 48 83 c3 04 48 89 d8 48 c1 e8 03 <42> 0f b6 04 30 84 c0 0f 85 6c 07 00 00 0f b6 1b 31 ff 89 de e8 15 [ 54.986265][ T5068] RSP: 0018:ffffc90003acf438 EFLAGS: 00010247 [ 54.992364][ T5068] RAX: 0000000000000000 RBX: 0000000000000004 RCX: ffff88801f590000 [ 55.000352][ T5068] RDX: ffff88801f590000 RSI: 0000000000000000 RDI: 0000000000000001 [ 55.009386][ T5068] RBP: 1ffff92000759ec6 R08: ffffffff8a724b72 R09: ffffed10043c28c1 [ 55.017382][ T5068] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888021e14c90 [ 55.025372][ T5068] R13: ffffc90003acf610 R14: dffffc0000000000 R15: ffffc90003acf630 [ 55.033358][ T5068] FS: 0000555556b0e300(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 55.042299][ T5068] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.048979][ T5068] CR2: 00007f79c14d66a8 CR3: 0000000029ae4000 CR4: 00000000003506e0 [ 55.056941][ T5068] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 55.064951][ T5068] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 55.073034][ T5068] Kernel panic - not syncing: Fatal exception [ 55.079231][ T5068] Kernel Offset: disabled [ 55.083661][ T5068] Rebooting in 86400 seconds..