./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor891327553 <...> Warning: Permanently added '10.128.1.133' (ED25519) to the list of known hosts. execve("./syz-executor891327553", ["./syz-executor891327553"], 0x7ffc54175810 /* 10 vars */) = 0 brk(NULL) = 0x555556253000 brk(0x555556253d00) = 0x555556253d00 arch_prctl(ARCH_SET_FS, 0x555556253380) = 0 set_tid_address(0x555556253650) = 5232 set_robust_list(0x555556253660, 24) = 0 rseq(0x555556253ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor891327553", 4096) = 27 getrandom("\xc1\x5a\x74\x73\x9e\xc9\x0c\xdd", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556253d00 brk(0x555556274d00) = 0x555556274d00 brk(0x555556275000) = 0x555556275000 mprotect(0x7f0c41a3c000, 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=5232}, "\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=5232}, {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 [ 62.293408][ T5232] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000003: 0000 [#1] PREEMPT SMP KASAN PTI [ 62.306005][ T5232] KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f] [ 62.314431][ T5232] CPU: 0 UID: 0 PID: 5232 Comm: syz-executor891 Not tainted 6.11.0-rc6-syzkaller-01235-ga9b1fab3b69f #0 [ 62.325518][ T5232] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 [ 62.335560][ T5232] RIP: 0010:ethnl_phy_doit+0x2f0/0x870 [ 62.341023][ T5232] 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 [ 62.360617][ T5232] RSP: 0018:ffffc900034df360 EFLAGS: 00010206 [ 62.366662][ T5232] RAX: 0000000000000003 RBX: 0000000000000018 RCX: dffffc0000000000 [ 62.374614][ T5232] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc900034df3d8 [ 62.382570][ T5232] RBP: ffffc900034df470 R08: ffffffff89cb85e4 R09: 1ffffffff1f9194c [ 62.390523][ T5232] R10: dffffc0000000000 R11: fffffbfff1f9194d R12: 0000000000000000 [ 62.398473][ T5232] R13: 1ffff11005dbb8e5 R14: ffffc900034df740 R15: ffffc900034df3c0 [ 62.406433][ T5232] FS: 0000555556253380(0000) GS:ffff8880b8800000(0000) knlGS:0000000000000000 [ 62.415353][ T5232] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 62.421925][ T5232] CR2: 00005626e13360a8 CR3: 0000000072a5a000 CR4: 00000000003506f0 [ 62.429891][ T5232] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 62.437849][ T5232] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 62.445806][ T5232] Call Trace: [ 62.449076][ T5232] [ 62.451994][ T5232] ? __die_body+0x88/0xe0 [ 62.456346][ T5232] ? die_addr+0x108/0x140 [ 62.460691][ T5232] ? exc_general_protection+0x3dd/0x5d0 [ 62.466244][ T5232] ? asm_exc_general_protection+0x26/0x30 [ 62.471957][ T5232] ? ethnl_req_get_phydev+0x94/0x220 [ 62.477232][ T5232] ? ethnl_phy_doit+0x2f0/0x870 [ 62.482078][ T5232] ? __pfx_ethnl_phy_doit+0x10/0x10 [ 62.487273][ T5232] ? genl_family_rcv_msg_attrs_parse+0x1d1/0x290 [ 62.493596][ T5232] genl_rcv_msg+0xb14/0xec0 [ 62.498092][ T5232] ? mark_lock+0x9a/0x350 [ 62.502421][ T5232] ? __pfx_genl_rcv_msg+0x10/0x10 [ 62.507451][ T5232] ? __pfx_lock_acquire+0x10/0x10 [ 62.512468][ T5232] ? __pfx_ethnl_phy_doit+0x10/0x10 [ 62.517658][ T5232] ? __pfx___might_resched+0x10/0x10 [ 62.522937][ T5232] netlink_rcv_skb+0x1e3/0x430 [ 62.527690][ T5232] ? __pfx_genl_rcv_msg+0x10/0x10 [ 62.532703][ T5232] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 62.538003][ T5232] genl_rcv+0x28/0x40 [ 62.541991][ T5232] netlink_unicast+0x7f6/0x990 [ 62.546760][ T5232] ? __pfx_netlink_unicast+0x10/0x10 [ 62.552040][ T5232] ? __virt_addr_valid+0x183/0x530 [ 62.557137][ T5232] ? __check_object_size+0x49c/0x900 [ 62.562412][ T5232] ? bpf_lsm_netlink_send+0x9/0x10 [ 62.567512][ T5232] netlink_sendmsg+0x8e4/0xcb0 [ 62.572268][ T5232] ? __pfx_netlink_sendmsg+0x10/0x10 [ 62.577539][ T5232] ? __import_iovec+0x536/0x820 [ 62.582385][ T5232] ? aa_sock_msg_perm+0x91/0x160 [ 62.587308][ T5232] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 62.592579][ T5232] ? security_socket_sendmsg+0x87/0xb0 [ 62.598028][ T5232] ? __pfx_netlink_sendmsg+0x10/0x10 [ 62.603300][ T5232] __sock_sendmsg+0x221/0x270 [ 62.607965][ T5232] ____sys_sendmsg+0x525/0x7d0 [ 62.612721][ T5232] ? __pfx_____sys_sendmsg+0x10/0x10 [ 62.617996][ T5232] ? do_raw_spin_lock+0x14f/0x370 [ 62.623009][ T5232] __sys_sendmsg+0x2b0/0x3a0 [ 62.627590][ T5232] ? __pfx___sys_sendmsg+0x10/0x10 [ 62.632692][ T5232] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 62.639014][ T5232] ? _raw_spin_unlock_irq+0x2e/0x50 [ 62.644197][ T5232] ? ptrace_notify+0x279/0x380 [ 62.648954][ T5232] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 62.655271][ T5232] ? do_syscall_64+0x100/0x230 [ 62.660025][ T5232] do_syscall_64+0xf3/0x230 [ 62.664518][ T5232] ? clear_bhb_loop+0x35/0x90 [ 62.669186][ T5232] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 62.675071][ T5232] RIP: 0033:0x7f0c419ca219 [ 62.679487][ T5232] 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 [ 62.699105][ T5232] RSP: 002b:00007ffd98692638 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 62.707508][ T5232] RAX: ffffffffffffffda RBX: 00007ffd98692808 RCX: 00007f0c419ca219 [ 62.715467][ T5232] RDX: 0000000000000000 RSI: 0000000020000300 RDI: 0000000000000003 [ 62.723424][ T5232] RBP: 00007f0c41a3c610 R08: 0000000000000000 R09: 00007ffd98692808 [ 62.731382][ T5232] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 62.739349][ T5232] R13: 00007ffd986927f8 R14: 0000000000000001 R15: 0000000000000001 [ 62.747315][ T5232] [ 62.750318][ T5232] Modules linked in: [ 62.754521][ T5232] ---[ end trace 0000000000000000 ]--- [ 62.760177][ T5232] RIP: 0010:ethnl_phy_doit+0x2f0/0x870 [ 62.765649][ T5232] 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 [ 62.785416][ T5232] RSP: 0018:ffffc900034df360 EFLAGS: 00010206 [ 62.791526][ T5232] RAX: 0000000000000003 RBX: 0000000000000018 RCX: dffffc0000000000 [ 62.799549][ T5232] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc900034df3d8 [ 62.807507][ T5232] RBP: ffffc900034df470 R08: ffffffff89cb85e4 R09: 1ffffffff1f9194c [ 62.815506][ T5232] R10: dffffc0000000000 R11: fffffbfff1f9194d R12: 0000000000000000 [ 62.823524][ T5232] R13: 1ffff11005dbb8e5 R14: ffffc900034df740 R15: ffffc900034df3c0 [ 62.831507][ T5232] FS: 0000555556253380(0000) GS:ffff8880b8800000(0000) knlGS:0000000000000000 [ 62.840464][ T5232] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 62.847031][ T5232] CR2: 00005626e13360a8 CR3: 0000000072a5a000 CR4: 00000000003506f0 [ 62.855019][ T5232] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 62.863033][ T5232] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 62.871078][ T5232] Kernel panic - not syncing: Fatal exception [ 62.877342][ T5232] Kernel Offset: disabled [ 62.881651][ T5232] Rebooting in 86400 seconds..