./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3769922726 <...> Warning: Permanently added '10.128.0.139' (ED25519) to the list of known hosts. execve("./syz-executor3769922726", ["./syz-executor3769922726"], 0x7fff3aa38050 /* 10 vars */) = 0 brk(NULL) = 0x555555757000 brk(0x555555757d00) = 0x555555757d00 arch_prctl(ARCH_SET_FS, 0x555555757380) = 0 set_tid_address(0x555555757650) = 5003 set_robust_list(0x555555757660, 24) = 0 rseq(0x555555757ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3769922726", 4096) = 28 getrandom("\x8f\x41\x0c\x59\xdf\x64\x0d\x92", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555757d00 brk(0x555555778d00) = 0x555555778d00 brk(0x555555779000) = 0x555555779000 mprotect(0x7fc08c813000, 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 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5004 attached , child_tidptr=0x555555757650) = 5004 [pid 5004] set_robust_list(0x555555757660, 24) = 0 [pid 5004] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5004] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5004] setsid() = 1 [pid 5004] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5004] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5004] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5004] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5004] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5004] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5004] unshare(CLONE_NEWNS) = 0 [pid 5004] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5004] unshare(CLONE_NEWIPC) = 0 [pid 5004] unshare(CLONE_NEWCGROUP) = 0 [pid 5004] unshare(CLONE_NEWUTS) = 0 [pid 5004] unshare(CLONE_SYSVSEM) = 0 [pid 5004] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5004] write(3, "16777216", 8) = 8 [pid 5004] close(3) = 0 [pid 5004] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5004] write(3, "536870912", 9) = 9 [pid 5004] close(3) = 0 [pid 5004] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5004] write(3, "1024", 4) = 4 [pid 5004] close(3) = 0 [pid 5004] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5004] write(3, "8192", 4) = 4 [pid 5004] close(3) = 0 [pid 5004] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5004] write(3, "1024", 4) = 4 [pid 5004] close(3) = 0 [pid 5004] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5004] write(3, "1024", 4) = 4 [pid 5004] close(3) = 0 [pid 5004] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5004] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5004] close(3) = 0 [pid 5004] getpid() = 1 [pid 5004] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [ 167.665434][ C0] dump_stack_lvl+0x1bf/0x240 [ 167.670344][ C0] dump_stack+0x1e/0x20 [ 167.674677][ C0] panic+0x4de/0xc90 [ 167.678780][ C0] ? add_taint+0x108/0x1a0 [ 167.683350][ C0] kmsan_report+0x2d0/0x2d0 [ 167.688069][ C0] ? __msan_warning+0x96/0x110 [ 167.693028][ C0] ? mptcp_incoming_options+0xc93/0x3a80 [ 167.698916][ C0] ? tcp_data_queue+0xb4/0x7f20 [ 167.703968][ C0] ? tcp_rcv_established+0x1132/0x2600 [ 167.709680][ C0] ? tcp_v4_do_rcv+0x8a8/0xff0 [ 167.714579][ C0] ? tcp_v4_rcv+0x4ce0/0x51a0 [ 167.719447][ C0] ? ip_protocol_deliver_rcu+0x264/0x1300 [ 167.725409][ C0] ? ip_local_deliver_finish+0x2b8/0x440 [ 167.731279][ C0] ? ip_local_deliver+0x21f/0x490 [ 167.736451][ C0] ? ip_rcv+0x476/0x770 [ 167.740825][ C0] ? __netif_receive_skb+0x1a6/0x5a0 [ 167.746331][ C0] ? process_backlog+0x480/0x8b0 [ 167.751498][ C0] ? __napi_poll+0xe3/0x970 [ 167.756213][ C0] ? net_rx_action+0x884/0x16d0 [ 167.761281][ C0] ? __do_softirq+0x1b7/0x7c3 [ 167.766209][ C0] ? do_softirq+0x9a/0xf0 [ 167.770785][ C0] ? __local_bh_enable_ip+0x99/0xa0 [ 167.776198][ C0] ? __dev_queue_xmit+0x24ff/0x5130 [ 167.781545][ C0] ? ip_finish_output2+0x14be/0x1b40 [ 167.786975][ C0] ? __ip_finish_output+0x266/0x720 [ 167.792366][ C0] ? ip_finish_output+0x4b/0x550 [ 167.797543][ C0] ? ip_output+0x15f/0x3e0 [ 167.802205][ C0] ? __ip_queue_xmit+0x1c02/0x1e00 [ 167.807560][ C0] ? ip_queue_xmit+0x60/0x80 [ 167.812396][ C0] ? __tcp_transmit_skb+0x3b26/0x4c40 [ 167.817956][ C0] ? tcp_write_xmit+0x3e0f/0x8940 [ 167.823119][ C0] ? __tcp_push_pending_frames+0xc4/0x380 [ 167.829048][ C0] ? tcp_push+0x755/0x7a0 [ 167.833597][ C0] ? __mptcp_push_pending+0x8bc/0xde0 [ 167.839172][ C0] ? mptcp_sendmsg+0x1e90/0x2300 [ 167.844278][ C0] ? inet_sendmsg+0x105/0x190 [ 167.849145][ C0] ? ____sys_sendmsg+0x9c2/0xd60 [ 167.854306][ C0] ? ___sys_sendmsg+0x28d/0x3c0 [ 167.859302][ C0] ? __sys_sendmmsg+0x3c4/0x950 [ 167.864302][ C0] ? __x64_sys_sendmmsg+0xbc/0x120 [ 167.869564][ C0] ? do_syscall_64+0x44/0x110 [ 167.874436][ C0] ? entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 167.880720][ C0] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 167.886726][ C0] __msan_warning+0x96/0x110 [ 167.891545][ C0] mptcp_incoming_options+0xc93/0x3a80 [ 167.897269][ C0] ? tcp_data_queue+0x40/0x7f20 [ 167.902318][ C0] ? filter_irq_stacks+0x60/0x1a0 [ 167.907589][ C0] tcp_data_queue+0xb4/0x7f20 [ 167.912473][ C0] ? ktime_get+0x37d/0x460 [ 167.917071][ C0] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 167.923171][ C0] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 167.929206][ C0] tcp_rcv_established+0x1132/0x2600 [ 167.934715][ C0] ? ipv4_dst_check+0x12c/0x1a0 [ 167.939797][ C0] ? neigh_release+0xb0/0xb0 [ 167.944577][ C0] tcp_v4_do_rcv+0x8a8/0xff0 [ 167.949348][ C0] tcp_v4_rcv+0x4ce0/0x51a0 [ 167.954128][ C0] ? tcp_filter+0xa0/0xa0 [ 167.958624][ C0] ip_protocol_deliver_rcu+0x264/0x1300 [ 167.964377][ C0] ip_local_deliver_finish+0x2b8/0x440 [ 167.970077][ C0] ip_local_deliver+0x21f/0x490 [ 167.975069][ C0] ? ip_local_deliver+0x490/0x490 [ 167.980242][ C0] ? ip_protocol_deliver_rcu+0x1300/0x1300 [ 167.986267][ C0] ip_rcv+0x476/0x770 [ 167.990478][ C0] ? ip_rcv_core+0x16b0/0x16b0 [ 167.995477][ C0] __netif_receive_skb+0x1a6/0x5a0 [ 168.000828][ C0] ? ip_local_deliver_finish+0x440/0x440 [ 168.006711][ C0] process_backlog+0x480/0x8b0 [ 168.011699][ C0] ? trigger_rx_softirq+0x40/0x40 [ 168.016860][ C0] __napi_poll+0xe3/0x970 [ 168.021322][ C0] net_rx_action+0x884/0x16d0 [ 168.026145][ C0] ? net_tx_action+0x950/0x950 [ 168.031052][ C0] __do_softirq+0x1b7/0x7c3 [ 168.035723][ C0] do_softirq+0x9a/0xf0 [ 168.040040][ C0] [ 168.043079][ C0] [ 168.046109][ C0] __local_bh_enable_ip+0x99/0xa0 [ 168.051297][ C0] __dev_queue_xmit+0x24ff/0x5130 [ 168.056482][ C0] ? __dev_queue_xmit+0x34b/0x5130 [ 168.061847][ C0] ? kmsan_internal_set_shadow_origin+0x66/0xe0 [ 168.068349][ C0] ip_finish_output2+0x14be/0x1b40 [ 168.073692][ C0] __ip_finish_output+0x266/0x720 [ 168.078934][ C0] ip_finish_output+0x4b/0x550 [ 168.083951][ C0] ? __rcu_read_unlock+0x47/0xd0 [ 168.089043][ C0] ip_output+0x15f/0x3e0 [ 168.093460][ C0] ? ip_mc_finish_output+0x820/0x820 [ 168.098957][ C0] ? ip_finish_output+0x550/0x550 [ 168.104148][ C0] __ip_queue_xmit+0x1c02/0x1e00 [ 168.109370][ C0] ip_queue_xmit+0x60/0x80 [ 168.114064][ C0] ? __ip_queue_xmit+0x1e00/0x1e00 [ 168.119427][ C0] __tcp_transmit_skb+0x3b26/0x4c40 [ 168.124882][ C0] tcp_write_xmit+0x3e0f/0x8940 [ 168.129907][ C0] __tcp_push_pending_frames+0xc4/0x380 [ 168.135609][ C0] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 168.141685][ C0] tcp_push+0x755/0x7a0 [ 168.146076][ C0] __mptcp_push_pending+0x8bc/0xde0 [ 168.151512][ C0] mptcp_sendmsg+0x1e90/0x2300 [ 168.156555][ C0] ? mptcp_shutdown+0x410/0x410 [ 168.161557][ C0] inet_sendmsg+0x105/0x190 [ 168.166191][ C0] ? inet_send_prepare+0x5c0/0x5c0 [ 168.171418][ C0] ____sys_sendmsg+0x9c2/0xd60 [ 168.176340][ C0] ___sys_sendmsg+0x28d/0x3c0 [ 168.181197][ C0] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 168.187247][ C0] ? _raw_spin_unlock_irqrestore+0x3f/0x60 [ 168.193281][ C0] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 168.199345][ C0] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 168.205380][ C0] __sys_sendmmsg+0x3c4/0x950 [ 168.210301][ C0] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 168.216368][ C0] __x64_sys_sendmmsg+0xbc/0x120 [ 168.221450][ C0] do_syscall_64+0x44/0x110 [ 168.226073][ C0] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 168.232115][ C0] RIP: 0033:0x7fc08c79ab69 [ 168.236694][ C0] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 d1 19 00 00 90 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 [ 168.256507][ C0] RSP: 002b:00007fff64555ea8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 168.265072][ C0] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fc08c79ab69 [ 168.273217][ C0] RDX: 0000000000000001 RSI: 0000000020000900 RDI: 0000000000000004 [ 168.281306][ C0] RBP: 00000000000f4240 R08: 0000000100000000 R09: 0000000100000000 [ 168.289442][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff64555f00 [ 168.297548][ C0] R13: 0000000000000001 R14: 00007fff64555f00 R15: 0000000000000003 [ 168.305681][ C0] [ 168.309242][ C0] Kernel Offset: disabled [ 168.313632][ C0] Rebooting in 86400 seconds..