./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3553445892 <...> Warning: Permanently added '10.128.1.7' (ECDSA) to the list of known hosts. execve("./syz-executor3553445892", ["./syz-executor3553445892"], 0x7ffe4c74ffd0 /* 10 vars */) = 0 brk(NULL) = 0x5555563b5000 brk(0x5555563b5c40) = 0x5555563b5c40 arch_prctl(ARCH_SET_FS, 0x5555563b5300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor3553445892", 4096) = 28 brk(0x5555563d6c40) = 0x5555563d6c40 brk(0x5555563d7000) = 0x5555563d7000 mprotect(0x7fb176551000, 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_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=916, nlmsg_type=nlctrl, nlmsg_flags=0, nlmsg_seq=0, nlmsg_pid=5067}, "\x01\x02\x00\x00\x0c\x00\x02\x00\x65\x74\x68\x74\x6f\x6f\x6c\x00\x06\x00\x01\x00\x15\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\x38\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) = 916 recvfrom(4, [{nlmsg_len=36, nlmsg_type=NLMSG_ERROR, nlmsg_flags=NLM_F_CAPPED, nlmsg_seq=0, nlmsg_pid=5067}, {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 [ 53.931562][ T5067] general protection fault, probably for non-canonical address 0xdffffc0000000173: 0000 [#1] PREEMPT SMP KASAN [ 53.943330][ T5067] KASAN: null-ptr-deref in range [0x0000000000000b98-0x0000000000000b9f] [ 53.951729][ T5067] CPU: 1 PID: 5067 Comm: syz-executor355 Not tainted 6.2.0-rc2-syzkaller-00378-g60d86034b14e #0 [ 53.962123][ T5067] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 53.972160][ T5067] RIP: 0010:ethnl_set_plca_cfg+0x1c5/0x810 [ 53.978001][ T5067] Code: 28 7a f9 4c 8b 7c 24 58 e8 d8 17 c6 ff 49 8d 87 98 0b 00 00 48 89 c2 48 89 44 24 08 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 7d 05 00 00 49 83 bf 98 0b 00 00 00 0f 84 b8 04 [ 53.997689][ T5067] RSP: 0018:ffffc90003cbf470 EFLAGS: 00010202 [ 54.003754][ T5067] RAX: dffffc0000000000 RBX: ffffc90003cbf5d8 RCX: 0000000000000000 [ 54.011723][ T5067] RDX: 0000000000000173 RSI: 0000000000000002 RDI: 0000000000000001 [ 54.019690][ T5067] RBP: 1ffff92000797e95 R08: 0000000000000000 R09: ffffffff8e72e917 [ 54.027658][ T5067] R10: fffffbfff1ce5d22 R11: 0000000000000000 R12: 00000000ffffffea [ 54.035622][ T5067] R13: ffff88801cc43980 R14: ffffc90003cbf618 R15: 0000000000000000 [ 54.043593][ T5067] FS: 00005555563b5300(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 54.052543][ T5067] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.059162][ T5067] CR2: 0000000020001ac0 CR3: 000000007d808000 CR4: 00000000003506e0 [ 54.067133][ T5067] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 54.075099][ T5067] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 54.083067][ T5067] Call Trace: [ 54.086343][ T5067] [ 54.089276][ T5067] ? plca_get_status_prepare_data+0x1c0/0x1c0 [ 54.095347][ T5067] ? __nla_parse+0x41/0x50 [ 54.099765][ T5067] ? genl_family_rcv_msg_attrs_parse.constprop.0+0x1b7/0x290 [ 54.107153][ T5067] ? genl_family_rcv_msg_attrs_parse.constprop.0+0xaf/0x290 [ 54.114453][ T5067] genl_family_rcv_msg_doit.isra.0+0x1e6/0x2d0 [ 54.120654][ T5067] ? genl_start+0x660/0x660 [ 54.125168][ T5067] ? apparmor_capable+0x1dc/0x460 [ 54.130210][ T5067] ? ns_capable+0xdd/0x100 [ 54.134635][ T5067] genl_rcv_msg+0x4ff/0x7e0 [ 54.139151][ T5067] ? genl_family_rcv_msg_doit.isra.0+0x2d0/0x2d0 [ 54.145494][ T5067] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 54.151476][ T5067] ? plca_get_status_prepare_data+0x1c0/0x1c0 [ 54.157549][ T5067] netlink_rcv_skb+0x165/0x440 [ 54.162327][ T5067] ? genl_family_rcv_msg_doit.isra.0+0x2d0/0x2d0 [ 54.168672][ T5067] ? netlink_ack+0x1370/0x1370 [ 54.173451][ T5067] ? rwsem_down_read_slowpath+0xb20/0xb20 [ 54.179174][ T5067] ? netlink_deliver_tap+0x1b1/0xc50 [ 54.184467][ T5067] genl_rcv+0x28/0x40 [ 54.188507][ T5067] netlink_unicast+0x547/0x7f0 [ 54.193279][ T5067] ? netlink_attachskb+0x890/0x890 [ 54.198398][ T5067] ? __virt_addr_valid+0x61/0x2e0 [ 54.203428][ T5067] ? __phys_addr_symbol+0x30/0x70 [ 54.208460][ T5067] ? __check_object_size+0x2e2/0x5a0 [ 54.213754][ T5067] netlink_sendmsg+0x91b/0xe10 [ 54.218529][ T5067] ? netlink_unicast+0x7f0/0x7f0 [ 54.223475][ T5067] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 54.228771][ T5067] ? netlink_unicast+0x7f0/0x7f0 [ 54.233714][ T5067] sock_sendmsg+0xd3/0x120 [ 54.238136][ T5067] ____sys_sendmsg+0x712/0x8c0 [ 54.242906][ T5067] ? copy_msghdr_from_user+0xfc/0x150 [ 54.248290][ T5067] ? kernel_sendmsg+0x50/0x50 [ 54.252982][ T5067] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 54.258965][ T5067] ___sys_sendmsg+0x110/0x1b0 [ 54.263654][ T5067] ? do_recvmmsg+0x6e0/0x6e0 [ 54.268258][ T5067] ? lock_release+0x810/0x810 [ 54.272932][ T5067] ? ptrace_stop.part.0+0x4a3/0x8e0 [ 54.278132][ T5067] ? do_raw_spin_lock+0x124/0x2b0 [ 54.283156][ T5067] ? rwlock_bug.part.0+0x90/0x90 [ 54.288092][ T5067] ? _raw_spin_lock_irq+0x45/0x50 [ 54.293128][ T5067] ? __fget_light+0x20a/0x270 [ 54.297808][ T5067] __sys_sendmsg+0xf7/0x1c0 [ 54.302327][ T5067] ? __sys_sendmsg_sock+0x40/0x40 [ 54.307365][ T5067] ? lock_downgrade+0x6e0/0x6e0 [ 54.312219][ T5067] ? lockdep_hardirqs_on+0x7d/0x100 [ 54.317421][ T5067] ? _raw_spin_unlock_irq+0x2e/0x50 [ 54.322621][ T5067] ? ptrace_notify+0xfe/0x140 [ 54.327298][ T5067] do_syscall_64+0x39/0xb0 [ 54.331722][ T5067] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 54.337614][ T5067] RIP: 0033:0x7fb1764e4ae9 [ 54.342024][ T5067] 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 [ 54.361628][ T5067] RSP: 002b:00007ffd5160add8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 54.370039][ T5067] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb1764e4ae9 [ 54.378006][ T5067] RDX: 0000000000000000 RSI: 0000000020001ac0 RDI: 0000000000000003 [ 54.385970][ T5067] RBP: 00007fb1764a84b0 R08: 0000000000000000 R09: 0000000000000000 [ 54.393939][ T5067] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb1764a8540 [ 54.401906][ T5067] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 54.409880][ T5067] [ 54.412889][ T5067] Modules linked in: [ 54.417264][ T5067] ---[ end trace 0000000000000000 ]--- [ 54.422726][ T5067] RIP: 0010:ethnl_set_plca_cfg+0x1c5/0x810 [ 54.428774][ T5067] Code: 28 7a f9 4c 8b 7c 24 58 e8 d8 17 c6 ff 49 8d 87 98 0b 00 00 48 89 c2 48 89 44 24 08 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 7d 05 00 00 49 83 bf 98 0b 00 00 00 0f 84 b8 04 [ 54.448596][ T5067] RSP: 0018:ffffc90003cbf470 EFLAGS: 00010202 [ 54.454655][ T5067] RAX: dffffc0000000000 RBX: ffffc90003cbf5d8 RCX: 0000000000000000 [ 54.463121][ T5067] RDX: 0000000000000173 RSI: 0000000000000002 RDI: 0000000000000001 [ 54.471252][ T5067] RBP: 1ffff92000797e95 R08: 0000000000000000 R09: ffffffff8e72e917 [ 54.479370][ T5067] R10: fffffbfff1ce5d22 R11: 0000000000000000 R12: 00000000ffffffea [ 54.487470][ T5067] R13: ffff88801cc43980 R14: ffffc90003cbf618 R15: 0000000000000000 [ 54.495590][ T5067] FS: 00005555563b5300(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 54.504517][ T5067] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.511190][ T5067] CR2: 0000000020001ac0 CR3: 000000007d808000 CR4: 00000000003506e0 [ 54.519256][ T5067] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 54.527367][ T5067] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 54.535416][ T5067] Kernel panic - not syncing: Fatal exception [ 54.541653][ T5067] Kernel Offset: disabled [ 54.545966][ T5067] Rebooting in 86400 seconds..