./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1165296557 <...> Warning: Permanently added '10.128.1.154' (ED25519) to the list of known hosts. execve("./syz-executor1165296557", ["./syz-executor1165296557"], 0x7ffdbc81b8d0 /* 10 vars */) = 0 brk(NULL) = 0x5555817b6000 brk(0x5555817b6d00) = 0x5555817b6d00 arch_prctl(ARCH_SET_FS, 0x5555817b6380) = 0 set_tid_address(0x5555817b6650) = 5237 set_robust_list(0x5555817b6660, 24) = 0 rseq(0x5555817b6ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1165296557", 4096) = 28 getrandom("\xe1\x35\x10\xe7\xb2\x88\x48\x24", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555817b6d00 brk(0x5555817d7d00) = 0x5555817d7d00 brk(0x5555817d8000) = 0x5555817d8000 mprotect(0x7fac7000e000, 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 write(1, "executing program\n", 18executing program ) = 18 socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC) = 3 socket(AF_NETLINK, SOCK_RAW, NETLINK_GENERIC) = 4 sendto(4, [{nlmsg_len=32, nlmsg_type=0x10 /* NLMSG_??? */, nlmsg_flags=NLM_F_REQUEST|NLM_F_ACK, nlmsg_seq=0, nlmsg_pid=0}, "\x03\x00\x00\x00\x0c\x00\x02\x00\x65\x74\x68\x74\x6f\x6f\x6c\x00"], 32, 0, {sa_family=AF_NETLINK, nl_pid=0, nl_groups=00000000}, 12) = 32 recvfrom(4, [{nlmsg_len=996, nlmsg_type=nlctrl, nlmsg_flags=0, nlmsg_seq=0, nlmsg_pid=5237}, "\x01\x02\x00\x00\x0c\x00\x02\x00\x65\x74\x68\x74\x6f\x6f\x6c\x00\x06\x00\x01\x00\x16\x00\x00\x00\x08\x00\x03\x00\x01\x00\x00\x00\x08\x00\x04\x00\x00\x00\x00\x00\x08\x00\x05\x00\x00\x00\x00\x00\x88\x03\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\x02\x00\x00\x00\x08\x00\x02\x00\x0e\x00\x00\x00\x14\x00\x03\x00\x08\x00\x01\x00"...], 4096, 0, NULL, NULL) = 996 recvfrom(4, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=5237}, {error=0, msg={nlmsg_len=32, 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 [ 76.116545][ T5237] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000003: 0000 [#1] PREEMPT SMP KASAN PTI [ 76.129171][ T5237] KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f] [ 76.137716][ T5237] CPU: 0 UID: 0 PID: 5237 Comm: syz-executor116 Not tainted 6.11.0-rc6-syzkaller-01235-ga9b1fab3b69f #0 [ 76.148823][ T5237] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 [ 76.158871][ T5237] RIP: 0010:ethnl_phy_doit+0x2f0/0x870 [ 76.164362][ T5237] Code: 00 00 fc ff df 80 3c 08 00 74 05 e8 5a 91 2b f8 48 8b 5c 24 78 48 83 c3 18 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 df e8 32 91 2b f8 4c 8b 2b 4d 85 ed 74 25 [ 76.183974][ T5237] RSP: 0018:ffffc9000345f360 EFLAGS: 00010206 [ 76.190070][ T5237] RAX: 0000000000000003 RBX: 0000000000000018 RCX: dffffc0000000000 [ 76.198061][ T5237] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc9000345f3d8 [ 76.206117][ T5237] RBP: ffffc9000345f470 R08: ffffffff89cb85e4 R09: 1ffffffff1f9194c [ 76.214090][ T5237] R10: dffffc0000000000 R11: fffffbfff1f9194d R12: 0000000000000000 [ 76.222085][ T5237] R13: 1ffff1100677404d R14: ffffc9000345f740 R15: ffffc9000345f3c0 [ 76.230075][ T5237] FS: 00005555817b6380(0000) GS:ffff8880b8800000(0000) knlGS:0000000000000000 [ 76.239018][ T5237] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 76.245604][ T5237] CR2: 000000000a170018 CR3: 000000007731e000 CR4: 00000000003506f0 [ 76.253585][ T5237] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 76.261559][ T5237] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 76.269532][ T5237] Call Trace: [ 76.272815][ T5237] [ 76.275749][ T5237] ? __die_body+0x88/0xe0 [ 76.280102][ T5237] ? die_addr+0x108/0x140 [ 76.284444][ T5237] ? exc_general_protection+0x3dd/0x5d0 [ 76.290031][ T5237] ? asm_exc_general_protection+0x26/0x30 [ 76.295775][ T5237] ? ethnl_req_get_phydev+0x94/0x220 [ 76.301071][ T5237] ? ethnl_phy_doit+0x2f0/0x870 [ 76.305939][ T5237] ? __pfx_ethnl_phy_doit+0x10/0x10 [ 76.311154][ T5237] ? genl_family_rcv_msg_attrs_parse+0x1d1/0x290 [ 76.317521][ T5237] genl_rcv_msg+0xb14/0xec0 [ 76.322035][ T5237] ? mark_lock+0x9a/0x350 [ 76.326421][ T5237] ? __pfx_genl_rcv_msg+0x10/0x10 [ 76.331470][ T5237] ? __pfx_lock_acquire+0x10/0x10 [ 76.336536][ T5237] ? __pfx_ethnl_phy_doit+0x10/0x10 [ 76.341748][ T5237] ? __pfx___might_resched+0x10/0x10 [ 76.347047][ T5237] netlink_rcv_skb+0x1e3/0x430 [ 76.351821][ T5237] ? __pfx_genl_rcv_msg+0x10/0x10 [ 76.356856][ T5237] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 76.362201][ T5237] genl_rcv+0x28/0x40 [ 76.366210][ T5237] netlink_unicast+0x7f6/0x990 [ 76.370987][ T5237] ? __pfx_netlink_unicast+0x10/0x10 [ 76.376317][ T5237] ? __virt_addr_valid+0x183/0x530 [ 76.381433][ T5237] ? __check_object_size+0x49c/0x900 [ 76.386726][ T5237] ? bpf_lsm_netlink_send+0x9/0x10 [ 76.391854][ T5237] netlink_sendmsg+0x8e4/0xcb0 [ 76.396634][ T5237] ? __pfx_netlink_sendmsg+0x10/0x10 [ 76.401940][ T5237] ? __import_iovec+0x536/0x820 [ 76.406821][ T5237] ? aa_sock_msg_perm+0x91/0x160 [ 76.411901][ T5237] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 76.417207][ T5237] ? security_socket_sendmsg+0x87/0xb0 [ 76.422691][ T5237] ? __pfx_netlink_sendmsg+0x10/0x10 [ 76.427993][ T5237] __sock_sendmsg+0x221/0x270 [ 76.432785][ T5237] ____sys_sendmsg+0x525/0x7d0 [ 76.437567][ T5237] ? __pfx_____sys_sendmsg+0x10/0x10 [ 76.442863][ T5237] ? do_raw_spin_lock+0x14f/0x370 [ 76.447896][ T5237] __sys_sendmsg+0x2b0/0x3a0 [ 76.452495][ T5237] ? __pfx___sys_sendmsg+0x10/0x10 [ 76.457629][ T5237] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 76.463965][ T5237] ? _raw_spin_unlock_irq+0x2e/0x50 [ 76.469175][ T5237] ? ptrace_notify+0x279/0x380 [ 76.473946][ T5237] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 76.480278][ T5237] ? do_syscall_64+0x100/0x230 [ 76.485079][ T5237] do_syscall_64+0xf3/0x230 [ 76.489591][ T5237] ? clear_bhb_loop+0x35/0x90 [ 76.494277][ T5237] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.500181][ T5237] RIP: 0033:0x7fac6ff9c219 [ 76.504609][ T5237] Code: 48 83 c4 28 c3 e8 e7 18 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 [ 76.524212][ T5237] RSP: 002b:00007ffd64519f58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 76.532630][ T5237] RAX: ffffffffffffffda RBX: 00007ffd6451a128 RCX: 00007fac6ff9c219 [ 76.540615][ T5237] RDX: 0000000000000000 RSI: 0000000020000300 RDI: 0000000000000003 [ 76.548616][ T5237] RBP: 00007fac7000e610 R08: 0000000000000000 R09: 00007ffd6451a128 [ 76.556592][ T5237] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 76.564564][ T5237] R13: 00007ffd6451a118 R14: 0000000000000001 R15: 0000000000000001 [ 76.572557][ T5237] [ 76.575590][ T5237] Modules linked in: [ 76.580400][ T5237] ---[ end trace 0000000000000000 ]--- [ 76.585961][ T5237] RIP: 0010:ethnl_phy_doit+0x2f0/0x870 [ 76.591817][ T5237] Code: 00 00 fc ff df 80 3c 08 00 74 05 e8 5a 91 2b f8 48 8b 5c 24 78 48 83 c3 18 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 48 89 df e8 32 91 2b f8 4c 8b 2b 4d 85 ed 74 25 [ 76.611492][ T5237] RSP: 0018:ffffc9000345f360 EFLAGS: 00010206 [ 76.617583][ T5237] RAX: 0000000000000003 RBX: 0000000000000018 RCX: dffffc0000000000 [ 76.625617][ T5237] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc9000345f3d8 [ 76.633633][ T5237] RBP: ffffc9000345f470 R08: ffffffff89cb85e4 R09: 1ffffffff1f9194c [ 76.641653][ T5237] R10: dffffc0000000000 R11: fffffbfff1f9194d R12: 0000000000000000 [ 76.649639][ T5237] R13: 1ffff1100677404d R14: ffffc9000345f740 R15: ffffc9000345f3c0 [ 76.657659][ T5237] FS: 00005555817b6380(0000) GS:ffff8880b8800000(0000) knlGS:0000000000000000 [ 76.666631][ T5237] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 76.673245][ T5237] CR2: 000000000a170018 CR3: 000000007731e000 CR4: 00000000003506f0 [ 76.681256][ T5237] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 76.689244][ T5237] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 76.697278][ T5237] Kernel panic - not syncing: Fatal exception [ 76.703640][ T5237] Kernel Offset: disabled [ 76.707961][ T5237] Rebooting in 86400 seconds..