./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3676644072 <...> no interfaces have a carrier [ 37.085362][ T4656] 8021q: adding VLAN 0 to HW filter on device bond0 [ 37.095571][ T4656] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: [ 37.381498][ T4745] ssh-keygen (4745) used greatest stack depth: 21816 bytes left OK syzkaller Warning: Permanently added '10.128.1.46' (ECDSA) to the list of known hosts. execve("./syz-executor3676644072", ["./syz-executor3676644072"], 0x7ffe458dc6e0 /* 10 vars */) = 0 brk(NULL) = 0x5555571a3000 brk(0x5555571a3c40) = 0x5555571a3c40 arch_prctl(ARCH_SET_FS, 0x5555571a3300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor3676644072", 4096) = 28 brk(0x5555571c4c40) = 0x5555571c4c40 brk(0x5555571c5000) = 0x5555571c5000 mprotect(0x7f2e5337b000, 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=5089}, "\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=5089}, {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=5089}, {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=5089}, {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=5089}, {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=5089}, {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=5089}, {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=5089}, "\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=5089}, {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: [ 60.784744][ T5089] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN [ 60.796698][ T5089] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 60.805102][ T5089] CPU: 0 PID: 5089 Comm: syz-executor367 Not tainted 6.2.0-syzkaller-05303-g724337be7f21 #0 [ 60.815345][ T5089] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023 [ 60.825428][ T5089] RIP: 0010:nl802154_trigger_scan+0x132/0xc90 [ 60.831509][ T5089] Code: 48 c1 ea 03 80 3c 02 00 0f 85 3f 0a 00 00 48 8b ad f8 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7d 04 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 d0 07 00 00 [ 60.851273][ T5089] RSP: 0018:ffffc90003c2f568 EFLAGS: 00010247 [ 60.857351][ T5089] RAX: dffffc0000000000 RBX: ffffc90003c2f5d8 RCX: 0000000000000000 [ 60.865319][ T5089] RDX: 0000000000000000 RSI: ffffffff89cbb0c1 RDI: 0000000000000004 [ 60.873280][ T5089] RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000001 [ 60.881249][ T5089] R10: 0000000000000000 R11: 0000000000000000 R12: ffff888020ba4c90 [ 60.889227][ T5089] R13: ffff8881470c4000 R14: ffff8881470c40a0 R15: ffffc90003c2f5f8 [ 60.897217][ T5089] FS: 00005555571a3300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 60.906142][ T5089] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 60.912746][ T5089] CR2: 000000000066a4c0 CR3: 0000000023692000 CR4: 00000000003506f0 [ 60.920709][ T5089] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 60.928670][ T5089] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 60.936629][ T5089] Call Trace: [ 60.939990][ T5089] [ 60.942937][ T5089] genl_family_rcv_msg_doit.isra.0+0x1e6/0x2d0 [ 60.949112][ T5089] ? genl_start+0x660/0x660 [ 60.953622][ T5089] ? ns_capable+0xe0/0x110 [ 60.958038][ T5089] genl_rcv_msg+0x4ff/0x7e0 [ 60.962538][ T5089] ? genl_family_rcv_msg_doit.isra.0+0x2d0/0x2d0 [ 60.968860][ T5089] ? nl802154_wpan_phy_netns+0x2c0/0x2c0 [ 60.974482][ T5089] ? nl802154_set_tx_power+0x620/0x620 [ 60.979940][ T5089] ? nl802154_pre_doit+0xd60/0xd60 [ 60.985046][ T5089] netlink_rcv_skb+0x165/0x440 [ 60.989806][ T5089] ? genl_family_rcv_msg_doit.isra.0+0x2d0/0x2d0 [ 60.996131][ T5089] ? netlink_ack+0x1360/0x1360 [ 61.000894][ T5089] genl_rcv+0x28/0x40 [ 61.004894][ T5089] netlink_unicast+0x547/0x7f0 [ 61.009653][ T5089] ? netlink_attachskb+0x890/0x890 [ 61.014779][ T5089] ? __virt_addr_valid+0x61/0x2e0 [ 61.019817][ T5089] ? __phys_addr_symbol+0x30/0x70 [ 61.024837][ T5089] ? __check_object_size+0x333/0x6e0 [ 61.030121][ T5089] netlink_sendmsg+0x925/0xe30 [ 61.034901][ T5089] ? netlink_unicast+0x7f0/0x7f0 [ 61.039833][ T5089] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 61.045113][ T5089] ? netlink_unicast+0x7f0/0x7f0 [ 61.050044][ T5089] sock_sendmsg+0xde/0x190 [ 61.054457][ T5089] ____sys_sendmsg+0x71c/0x900 [ 61.059236][ T5089] ? copy_msghdr_from_user+0xfc/0x150 [ 61.064618][ T5089] ? kernel_sendmsg+0x50/0x50 [ 61.069300][ T5089] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 61.075290][ T5089] ___sys_sendmsg+0x110/0x1b0 [ 61.079980][ T5089] ? do_recvmmsg+0x6e0/0x6e0 [ 61.084575][ T5089] ? lock_release+0x780/0x780 [ 61.089248][ T5089] ? ptrace_stop.part.0+0x4a3/0x8e0 [ 61.094457][ T5089] ? do_raw_spin_lock+0x124/0x2b0 [ 61.099474][ T5089] ? spin_bug+0x1c0/0x1c0 [ 61.103794][ T5089] ? __fget_light+0x20a/0x270 [ 61.108560][ T5089] __sys_sendmsg+0xf7/0x1c0 [ 61.113099][ T5089] ? __sys_sendmsg_sock+0x40/0x40 [ 61.118162][ T5089] ? lockdep_hardirqs_on+0x7d/0x100 [ 61.123384][ T5089] ? _raw_spin_unlock_irq+0x2e/0x50 [ 61.128592][ T5089] ? ptrace_notify+0xfe/0x140 [ 61.133274][ T5089] do_syscall_64+0x39/0xb0 [ 61.137696][ T5089] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 61.143673][ T5089] RIP: 0033:0x7f2e53308e69 [ 61.148089][ T5089] 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 [ 61.167696][ T5089] RSP: 002b:00007ffe53eda4d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 61.176118][ T5089] RAX: ffffffffffffffda RBX: 00007f2e53381380 RCX: 00007f2e53308e69 [ 61.184119][ T5089] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 [ 61.192177][ T5089] RBP: 0000000000000001 R08: 0000000000000000 R09: 001d00000000000c [ 61.200147][ T5089] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 61.208129][ T5089] R13: 0000000000000003 R14: 00007ffe53eda4f7 R15: 00007ffe53eda4fa [ 61.216477][ T5089] [ 61.219486][ T5089] Modules linked in: [ 61.224280][ T5089] ---[ end trace 0000000000000000 ]--- [ 61.229780][ T5089] RIP: 0010:nl802154_trigger_scan+0x132/0xc90 [ 61.236122][ T5089] Code: 48 c1 ea 03 80 3c 02 00 0f 85 3f 0a 00 00 48 8b ad f8 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7d 04 48 89 fa 48 c1 ea 03 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 d0 07 00 00 [ 61.256422][ T5089] RSP: 0018:ffffc90003c2f568 EFLAGS: 00010247 [ 61.262553][ T5089] RAX: dffffc0000000000 RBX: ffffc90003c2f5d8 RCX: 0000000000000000 [ 61.270569][ T5089] RDX: 0000000000000000 RSI: ffffffff89cbb0c1 RDI: 0000000000000004 [ 61.278552][ T5089] RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000001 [ 61.286558][ T5089] R10: 0000000000000000 R11: 0000000000000000 R12: ffff888020ba4c90 [ 61.294594][ T5089] R13: ffff8881470c4000 R14: ffff8881470c40a0 R15: ffffc90003c2f5f8 [ 61.302597][ T5089] FS: 00005555571a3300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 61.311576][ T5089] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 61.318151][ T5089] CR2: 000000000066a4c0 CR3: 0000000023692000 CR4: 00000000003506f0 [ 61.326260][ T5089] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 61.334387][ T5089] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 61.342526][ T5089] Kernel panic - not syncing: Fatal exception [ 61.348767][ T5089] Kernel Offset: disabled [ 61.353087][ T5089] Rebooting in 86400 seconds..