./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1005490909 <...> Warning: Permanently added '10.128.0.113' (ED25519) to the list of known hosts. execve("./syz-executor1005490909", ["./syz-executor1005490909"], 0x7ffc056079e0 /* 10 vars */) = 0 brk(NULL) = 0x555575d88000 brk(0x555575d88d00) = 0x555575d88d00 arch_prctl(ARCH_SET_FS, 0x555575d88380) = 0 set_tid_address(0x555575d88650) = 5240 set_robust_list(0x555575d88660, 24) = 0 rseq(0x555575d88ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1005490909", 4096) = 28 getrandom("\x51\xd9\x8f\x10\x34\x0b\xfe\x71", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555575d88d00 brk(0x555575da9d00) = 0x555575da9d00 brk(0x555575daa000) = 0x555575daa000 mprotect(0x7effb0be1000, 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=5240}, "\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=5240}, {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 [ 77.051672][ T5240] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000003: 0000 [#1] PREEMPT SMP KASAN PTI [ 77.064416][ T5240] KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f] [ 77.072832][ T5240] CPU: 0 UID: 0 PID: 5240 Comm: syz-executor100 Not tainted 6.11.0-rc6-syzkaller-01235-ga9b1fab3b69f #0 [ 77.083929][ T5240] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 [ 77.093972][ T5240] RIP: 0010:ethnl_phy_doit+0x2f0/0x870 [ 77.099449][ T5240] 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 [ 77.119052][ T5240] RSP: 0018:ffffc90003667360 EFLAGS: 00010206 [ 77.125116][ T5240] RAX: 0000000000000003 RBX: 0000000000000018 RCX: dffffc0000000000 [ 77.133171][ T5240] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc900036673d8 [ 77.141179][ T5240] RBP: ffffc90003667470 R08: ffffffff89cb85e4 R09: 1ffffffff1f9194c [ 77.149155][ T5240] R10: dffffc0000000000 R11: fffffbfff1f9194d R12: 0000000000000000 [ 77.157129][ T5240] R13: 1ffff11004f89bf1 R14: ffffc90003667740 R15: ffffc900036673c0 [ 77.165107][ T5240] FS: 0000555575d88380(0000) GS:ffff8880b8800000(0000) knlGS:0000000000000000 [ 77.174057][ T5240] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 77.180639][ T5240] CR2: 0000561e694510a8 CR3: 0000000029f00000 CR4: 00000000003506f0 [ 77.188609][ T5240] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 77.196576][ T5240] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 77.204573][ T5240] Call Trace: [ 77.207863][ T5240] [ 77.210819][ T5240] ? __die_body+0x88/0xe0 [ 77.215185][ T5240] ? die_addr+0x108/0x140 [ 77.219531][ T5240] ? exc_general_protection+0x3dd/0x5d0 [ 77.225101][ T5240] ? asm_exc_general_protection+0x26/0x30 [ 77.230840][ T5240] ? ethnl_req_get_phydev+0x94/0x220 [ 77.236130][ T5240] ? ethnl_phy_doit+0x2f0/0x870 [ 77.240993][ T5240] ? __pfx_ethnl_phy_doit+0x10/0x10 [ 77.246206][ T5240] ? genl_family_rcv_msg_attrs_parse+0x1d1/0x290 [ 77.252550][ T5240] genl_rcv_msg+0xb14/0xec0 [ 77.257069][ T5240] ? mark_lock+0x9a/0x350 [ 77.261430][ T5240] ? __pfx_genl_rcv_msg+0x10/0x10 [ 77.266504][ T5240] ? __pfx_lock_acquire+0x10/0x10 [ 77.271557][ T5240] ? __pfx_ethnl_phy_doit+0x10/0x10 [ 77.276780][ T5240] ? __pfx___might_resched+0x10/0x10 [ 77.282101][ T5240] netlink_rcv_skb+0x1e3/0x430 [ 77.286882][ T5240] ? __pfx_genl_rcv_msg+0x10/0x10 [ 77.291973][ T5240] ? __pfx_netlink_rcv_skb+0x10/0x10 [ 77.297276][ T5240] genl_rcv+0x28/0x40 [ 77.301280][ T5240] netlink_unicast+0x7f6/0x990 [ 77.306061][ T5240] ? __pfx_netlink_unicast+0x10/0x10 [ 77.311365][ T5240] ? __virt_addr_valid+0x183/0x530 [ 77.316478][ T5240] ? __check_object_size+0x49c/0x900 [ 77.321778][ T5240] ? bpf_lsm_netlink_send+0x9/0x10 [ 77.326894][ T5240] netlink_sendmsg+0x8e4/0xcb0 [ 77.331662][ T5240] ? __pfx_netlink_sendmsg+0x10/0x10 [ 77.336952][ T5240] ? __import_iovec+0x536/0x820 [ 77.341817][ T5240] ? aa_sock_msg_perm+0x91/0x160 [ 77.346750][ T5240] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 77.352035][ T5240] ? security_socket_sendmsg+0x87/0xb0 [ 77.357501][ T5240] ? __pfx_netlink_sendmsg+0x10/0x10 [ 77.362787][ T5240] __sock_sendmsg+0x221/0x270 [ 77.367460][ T5240] ____sys_sendmsg+0x525/0x7d0 [ 77.372229][ T5240] ? __pfx_____sys_sendmsg+0x10/0x10 [ 77.377521][ T5240] ? do_raw_spin_lock+0x14f/0x370 [ 77.382557][ T5240] __sys_sendmsg+0x2b0/0x3a0 [ 77.387179][ T5240] ? __pfx___sys_sendmsg+0x10/0x10 [ 77.392300][ T5240] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 77.398641][ T5240] ? _raw_spin_unlock_irq+0x2e/0x50 [ 77.403851][ T5240] ? ptrace_notify+0x279/0x380 [ 77.408619][ T5240] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 77.414961][ T5240] ? do_syscall_64+0x100/0x230 [ 77.419737][ T5240] do_syscall_64+0xf3/0x230 [ 77.424243][ T5240] ? clear_bhb_loop+0x35/0x90 [ 77.428923][ T5240] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 77.434815][ T5240] RIP: 0033:0x7effb0b6f219 [ 77.439238][ T5240] 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 [ 77.458838][ T5240] RSP: 002b:00007ffe72eb2a88 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 77.467251][ T5240] RAX: ffffffffffffffda RBX: 00007ffe72eb2c58 RCX: 00007effb0b6f219 [ 77.475223][ T5240] RDX: 0000000000000000 RSI: 0000000020000300 RDI: 0000000000000003 [ 77.483193][ T5240] RBP: 00007effb0be1610 R08: 0000000000000000 R09: 00007ffe72eb2c58 [ 77.491248][ T5240] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 [ 77.499215][ T5240] R13: 00007ffe72eb2c48 R14: 0000000000000001 R15: 0000000000000001 [ 77.507192][ T5240] [ 77.510208][ T5240] Modules linked in: [ 77.514397][ T5240] ---[ end trace 0000000000000000 ]--- [ 77.519877][ T5240] RIP: 0010:ethnl_phy_doit+0x2f0/0x870 [ 77.525673][ T5240] 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 [ 77.545650][ T5240] RSP: 0018:ffffc90003667360 EFLAGS: 00010206 [ 77.551730][ T5240] RAX: 0000000000000003 RBX: 0000000000000018 RCX: dffffc0000000000 [ 77.559773][ T5240] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc900036673d8 [ 77.567775][ T5240] RBP: ffffc90003667470 R08: ffffffff89cb85e4 R09: 1ffffffff1f9194c [ 77.575784][ T5240] R10: dffffc0000000000 R11: fffffbfff1f9194d R12: 0000000000000000 [ 77.583807][ T5240] R13: 1ffff11004f89bf1 R14: ffffc90003667740 R15: ffffc900036673c0 [ 77.591809][ T5240] FS: 0000555575d88380(0000) GS:ffff8880b8800000(0000) knlGS:0000000000000000 [ 77.600763][ T5240] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 77.607384][ T5240] CR2: 0000561e694510a8 CR3: 0000000029f00000 CR4: 00000000003506f0 [ 77.615420][ T5240] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 77.623420][ T5240] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 77.631384][ T5240] Kernel panic - not syncing: Fatal exception [ 77.637763][ T5240] Kernel Offset: disabled [ 77.642091][ T5240] Rebooting in 86400 seconds..