./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1637605923 <...> Warning: Permanently added '10.128.1.70' (ECDSA) to the list of known hosts. execve("./syz-executor1637605923", ["./syz-executor1637605923"], 0x7ffd7514d050 /* 10 vars */) = 0 brk(NULL) = 0x555556872000 brk(0x555556872c40) = 0x555556872c40 arch_prctl(ARCH_SET_FS, 0x555556872300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor1637605923", 4096) = 28 brk(0x555556893c40) = 0x555556893c40 brk(0x555556894000) = 0x555556894000 mprotect(0x7fa592b47000, 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, child_tidptr=0x5555568725d0) = 4949 ./strace-static-x86_64: Process 4949 attached [pid 4949] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 4949] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4949] setsid() = 1 [pid 4949] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 4949] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 4949] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 4949] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 4949] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 4949] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 4949] unshare(CLONE_NEWNS) = 0 [pid 4949] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 4949] unshare(CLONE_NEWIPC) = 0 [pid 4949] unshare(CLONE_NEWCGROUP) = 0 [pid 4949] unshare(CLONE_NEWUTS) = 0 [pid 4949] unshare(CLONE_SYSVSEM) = 0 [pid 4949] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 4949] write(3, "16777216", 8) = 8 [pid 4949] close(3) = 0 [pid 4949] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 4949] write(3, "536870912", 9) = 9 [pid 4949] close(3) = 0 [pid 4949] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 4949] write(3, "1024", 4) = 4 [pid 4949] close(3) = 0 [pid 4949] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 4949] write(3, "8192", 4) = 4 [pid 4949] close(3) = 0 [pid 4949] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 4949] write(3, "1024", 4) = 4 [pid 4949] close(3) = 0 [pid 4949] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 4949] write(3, "1024", 4) = 4 [pid 4949] close(3) = 0 [pid 4949] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 4949] write(3, "1024 1048576 500 1024", 21) = 21 [pid 4949] close(3) = 0 [pid 4949] getpid() = 1 [pid 4949] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [ 170.314555][ C0] dump_stack_lvl+0x1cc/0x260 [ 170.319446][ C0] dump_stack+0x1e/0x20 [ 170.323726][ C0] panic+0x4e2/0xc70 [ 170.327817][ C0] ? add_taint+0x108/0x1a0 [ 170.332429][ C0] kmsan_report+0x2d0/0x2d0 [ 170.337115][ C0] ? __msan_warning+0x96/0x110 [ 170.341997][ C0] ? eth_type_trans+0x621/0x800 [ 170.347068][ C0] ? ip_tunnel_rcv+0x29ca/0x3020 [ 170.352183][ C0] ? gre_rcv+0x15ef/0x19d0 [ 170.356823][ C0] ? gre_rcv+0x2a4/0x390 [ 170.361274][ C0] ? ip_protocol_deliver_rcu+0x264/0x1320 [ 170.367233][ C0] ? ip_local_deliver_finish+0x2b8/0x440 [ 170.373068][ C0] ? ip_local_deliver+0x241/0x4b0 [ 170.378299][ C0] ? ip_rcv+0x4b0/0x7c0 [ 170.382607][ C0] ? __netif_receive_skb+0x1b8/0x5e0 [ 170.388072][ C0] ? process_backlog+0x480/0x8b0 [ 170.393207][ C0] ? __napi_poll+0xe4/0x950 [ 170.397861][ C0] ? net_rx_action+0x8d3/0x19d0 [ 170.402940][ C0] ? __do_softirq+0x1c9/0x7c5 [ 170.407793][ C0] ? do_softirq+0x141/0x1f0 [ 170.412444][ C0] ? __local_bh_enable_ip+0x97/0xa0 [ 170.417808][ C0] ? local_bh_enable+0x28/0x30 [ 170.422839][ C0] ? ip_finish_output2+0x184a/0x1a60 [ 170.428296][ C0] ? __ip_finish_output+0x266/0x720 [ 170.433685][ C0] ? ip_finish_output+0x4b/0x420 [ 170.438843][ C0] ? ip_output+0x215/0x500 [ 170.443463][ C0] ? ip_send_skb+0x110/0x2a0 [ 170.448210][ C0] ? udp_send_skb+0xff9/0x1b00 [ 170.453158][ C0] ? udp_sendmsg+0x3145/0x3510 [ 170.458089][ C0] ? inet_sendmsg+0x105/0x190 [ 170.462995][ C0] ? sock_write_iter+0x4b0/0x660 [ 170.468167][ C0] ? vfs_write+0x834/0x1580 [ 170.473095][ C0] ? ksys_write+0x21f/0x4f0 [ 170.477808][ C0] ? __x64_sys_write+0x93/0xd0 [ 170.482775][ C0] ? do_syscall_64+0x41/0xc0 [ 170.487552][ C0] ? entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 170.493908][ C0] ? preempt_count_sub+0x81/0x280 [ 170.499131][ C0] ? _raw_spin_unlock_irqrestore+0x38/0x50 [ 170.505194][ C0] ? kmsan_internal_set_shadow_origin+0x66/0xe0 [ 170.511660][ C0] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 170.517724][ C0] __msan_warning+0x96/0x110 [ 170.522502][ C0] eth_type_trans+0x621/0x800 [ 170.527443][ C0] ip_tunnel_rcv+0x29ca/0x3020 [ 170.532393][ C0] ? __iptunnel_pull_header+0x824/0x980 [ 170.538181][ C0] gre_rcv+0x15ef/0x19d0 [ 170.542621][ C0] ? raw_local_deliver+0x13dc/0x1420 [ 170.548089][ C0] ? filter_irq_stacks+0x60/0x1a0 [ 170.553344][ C0] ? erspan_build_header_v2+0x500/0x500 [ 170.559091][ C0] gre_rcv+0x2a4/0x390 [ 170.563395][ C0] ? gre_parse_header+0x1a10/0x1a10 [ 170.568809][ C0] ip_protocol_deliver_rcu+0x264/0x1320 [ 170.574554][ C0] ip_local_deliver_finish+0x2b8/0x440 [ 170.580273][ C0] ip_local_deliver+0x241/0x4b0 [ 170.585350][ C0] ? ip_local_deliver+0x4b0/0x4b0 [ 170.590582][ C0] ? ip_protocol_deliver_rcu+0x1320/0x1320 [ 170.596587][ C0] ip_rcv+0x4b0/0x7c0 [ 170.600794][ C0] ? ip_rcv_core+0x1830/0x1830 [ 170.605771][ C0] __netif_receive_skb+0x1b8/0x5e0 [ 170.611120][ C0] ? ip_local_deliver_finish+0x440/0x440 [ 170.616960][ C0] process_backlog+0x480/0x8b0 [ 170.621960][ C0] ? trigger_rx_softirq+0x40/0x40 [ 170.627209][ C0] __napi_poll+0xe4/0x950 [ 170.631741][ C0] net_rx_action+0x8d3/0x19d0 [ 170.636633][ C0] ? net_tx_action+0x9d0/0x9d0 [ 170.641624][ C0] __do_softirq+0x1c9/0x7c5 [ 170.646411][ C0] ? idle_cpu+0x8d/0x1b0 [ 170.650823][ C0] do_softirq+0x141/0x1f0 [ 170.655313][ C0] [ 170.658333][ C0] [ 170.661390][ C0] __local_bh_enable_ip+0x97/0xa0 [ 170.666587][ C0] local_bh_enable+0x28/0x30 [ 170.671409][ C0] ip_finish_output2+0x184a/0x1a60 [ 170.676775][ C0] __ip_finish_output+0x266/0x720 [ 170.681988][ C0] ip_finish_output+0x4b/0x420 [ 170.686971][ C0] ? __rcu_read_unlock+0x7a/0xd0 [ 170.692239][ C0] ip_output+0x215/0x500 [ 170.696796][ C0] ? ip_mc_finish_output+0x710/0x710 [ 170.702298][ C0] ? ip_finish_output+0x420/0x420 [ 170.707545][ C0] ip_send_skb+0x110/0x2a0 [ 170.712206][ C0] udp_send_skb+0xff9/0x1b00 [ 170.717092][ C0] udp_sendmsg+0x3145/0x3510 [ 170.721887][ C0] ? ip_skb_dst_mtu+0xcb0/0xcb0 [ 170.726980][ C0] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 170.733009][ C0] ? udp_cmsg_send+0x640/0x640 [ 170.738026][ C0] ? udp_cmsg_send+0x640/0x640 [ 170.743035][ C0] inet_sendmsg+0x105/0x190 [ 170.747771][ C0] ? inet_send_prepare+0x5c0/0x5c0 [ 170.753102][ C0] sock_write_iter+0x4b0/0x660 [ 170.758069][ C0] ? sock_read_iter+0x5d0/0x5d0 [ 170.763150][ C0] vfs_write+0x834/0x1580 [ 170.767705][ C0] ksys_write+0x21f/0x4f0 [ 170.772254][ C0] __x64_sys_write+0x93/0xd0 [ 170.777025][ C0] do_syscall_64+0x41/0xc0 [ 170.781570][ C0] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 170.787651][ C0] RIP: 0033:0x7fa592ad3b19 [ 170.792194][ C0] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 41 15 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 c0 ff ff ff f7 d8 64 89 01 48 [ 170.811969][ C0] RSP: 002b:00007ffc184cdfd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 170.820581][ C0] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fa592ad3b19 [ 170.828732][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 [ 170.836830][ C0] RBP: 0000000000000000 R08: 000000000000000d R09: 000000000000000d [ 170.845039][ C0] R10: 000000000000000d R11: 0000000000000246 R12: 00007ffc184cdff0 [ 170.853145][ C0] R13: 00000000000f4240 R14: 0000000000000000 R15: 0000000000000000 [ 170.861234][ C0] [ 170.864580][ C0] Kernel Offset: disabled [ 170.868983][ C0] Rebooting in 86400 seconds..