./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor848989242 <...> Warning: Permanently added '10.128.0.78' (ED25519) to the list of known hosts. execve("./syz-executor848989242", ["./syz-executor848989242"], 0x7ffca0943460 /* 10 vars */) = 0 brk(NULL) = 0x55556d685000 brk(0x55556d685d00) = 0x55556d685d00 arch_prctl(ARCH_SET_FS, 0x55556d685380) = 0 set_tid_address(0x55556d685650) = 5172 set_robust_list(0x55556d685660, 24) = 0 rseq(0x55556d685ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor848989242", 4096) = 27 getrandom("\x9d\x0f\x87\xfc\x11\x99\xff\xe4", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556d685d00 brk(0x55556d6a6d00) = 0x55556d6a6d00 brk(0x55556d6a7000) = 0x55556d6a7000 mprotect(0x7feda3ae1000, 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=0x55556d685650) = 5173 ./strace-static-x86_64: Process 5173 attached [pid 5173] set_robust_list(0x55556d685660, 24) = 0 [pid 5173] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5173] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5173] setsid() = 1 [pid 5173] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5173] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5173] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5173] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5173] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5173] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5173] unshare(CLONE_NEWNS) = 0 [pid 5173] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5173] unshare(CLONE_NEWIPC) = 0 [pid 5173] unshare(CLONE_NEWCGROUP) = 0 [pid 5173] unshare(CLONE_NEWUTS) = 0 [pid 5173] unshare(CLONE_SYSVSEM) = 0 [pid 5173] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5173] write(3, "16777216", 8) = 8 [pid 5173] close(3) = 0 [pid 5173] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5173] write(3, "536870912", 9) = 9 [pid 5173] close(3) = 0 [pid 5173] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5173] write(3, "1024", 4) = 4 [pid 5173] close(3) = 0 [pid 5173] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5173] write(3, "8192", 4) = 4 [pid 5173] close(3) = 0 [pid 5173] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5173] write(3, "1024", 4) = 4 [pid 5173] close(3) = 0 [pid 5173] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5173] write(3, "1024", 4) = 4 [pid 5173] close(3) = 0 [pid 5173] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5173] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5173] close(3) = 0 [pid 5173] getpid() = 1 [pid 5173] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [ 197.218490][ T5200] dump_stack_lvl+0x216/0x2d0 [ 197.223339][ T5200] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 197.229416][ T5200] dump_stack+0x1e/0x30 [ 197.233714][ T5200] panic+0x4e2/0xcf0 [ 197.237784][ T5200] ? kmsan_get_metadata+0xf1/0x1c0 [ 197.243058][ T5200] kmsan_report+0x2c7/0x2d0 [ 197.247718][ T5200] ? __module_address+0x4d/0x630 [ 197.252786][ T5200] ? kmsan_get_metadata+0x13e/0x1c0 [ 197.258198][ T5200] ? __msan_warning+0x95/0x120 [ 197.263182][ T5200] ? ppp_async_push+0xb4f/0x2660 [ 197.268308][ T5200] ? ppp_async_send+0x130/0x1b0 [ 197.273321][ T5200] ? ppp_input+0x1f1/0xe60 [ 197.277852][ T5200] ? pppoe_rcv_core+0x1d3/0x720 [ 197.282831][ T5200] ? sk_backlog_rcv+0x13b/0x420 [ 197.287868][ T5200] ? __release_sock+0x1da/0x330 [ 197.292897][ T5200] ? release_sock+0x6b/0x250 [ 197.297741][ T5200] ? pppoe_sendmsg+0x2b8/0xb90 [ 197.302651][ T5200] ? __sock_sendmsg+0x30f/0x380 [ 197.307655][ T5200] ? ____sys_sendmsg+0x903/0xb60 [ 197.312729][ T5200] ? ___sys_sendmsg+0x28d/0x3c0 [ 197.317735][ T5200] ? __sys_sendmmsg+0x3be/0x950 [ 197.322832][ T5200] ? __x64_sys_sendmmsg+0xbc/0x120 [ 197.328091][ T5200] ? x64_sys_call+0xb6e/0x3ba0 [ 197.333053][ T5200] ? do_syscall_64+0xcd/0x1e0 [ 197.337857][ T5200] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 197.344240][ T5200] ? filter_irq_stacks+0x60/0x1a0 [ 197.349467][ T5200] ? __raise_softirq_irqoff+0x37/0x130 [ 197.355129][ T5200] ? __napi_schedule_irqoff+0x2ec/0x3d0 [ 197.360877][ T5200] ? kmsan_get_metadata+0x13e/0x1c0 [ 197.366272][ T5200] ? kmsan_get_metadata+0x13e/0x1c0 [ 197.371728][ T5200] ? kmsan_get_metadata+0x13e/0x1c0 [ 197.377098][ T5200] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 197.383616][ T5200] ? kmsan_get_metadata+0x13e/0x1c0 [ 197.389092][ T5200] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 197.395146][ T5200] __msan_warning+0x95/0x120 [ 197.399876][ T5200] ppp_async_push+0xb4f/0x2660 [ 197.404832][ T5200] ppp_async_send+0x130/0x1b0 [ 197.409647][ T5200] ? __pfx_ppp_async_send+0x10/0x10 [ 197.415014][ T5200] ppp_input+0x1f1/0xe60 [ 197.419427][ T5200] pppoe_rcv_core+0x1d3/0x720 [ 197.424231][ T5200] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 197.430201][ T5200] ? __pfx_pppoe_rcv_core+0x10/0x10 [ 197.435545][ T5200] ? __pfx_tcp_v4_do_rcv+0x10/0x10 [ 197.440820][ T5200] sk_backlog_rcv+0x13b/0x420 [ 197.445673][ T5200] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 197.451633][ T5200] __release_sock+0x1da/0x330 [ 197.456452][ T5200] release_sock+0x6b/0x250 [ 197.461064][ T5200] pppoe_sendmsg+0x2b8/0xb90 [ 197.465814][ T5200] ? __pfx_pppoe_sendmsg+0x10/0x10 [ 197.471070][ T5200] ? __pfx_pppoe_sendmsg+0x10/0x10 [ 197.476436][ T5200] __sock_sendmsg+0x30f/0x380 [ 197.481287][ T5200] ____sys_sendmsg+0x903/0xb60 [ 197.486216][ T5200] ___sys_sendmsg+0x28d/0x3c0 [ 197.491025][ T5200] ? _raw_spin_unlock_irqrestore+0x3f/0x60 [ 197.496999][ T5200] ? kmsan_get_metadata+0x13e/0x1c0 [ 197.502344][ T5200] ? kmsan_get_metadata+0x13e/0x1c0 [ 197.507691][ T5200] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 197.513660][ T5200] ? kmsan_get_metadata+0x13e/0x1c0 [ 197.519021][ T5200] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 197.524981][ T5200] __sys_sendmmsg+0x3be/0x950 [ 197.529787][ T5200] ? kmsan_get_metadata+0x13e/0x1c0 [ 197.535129][ T5200] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 197.541132][ T5200] __x64_sys_sendmmsg+0xbc/0x120 [ 197.546283][ T5200] x64_sys_call+0xb6e/0x3ba0 [ 197.551029][ T5200] do_syscall_64+0xcd/0x1e0 [ 197.555671][ T5200] ? clear_bhb_loop+0x25/0x80 [ 197.560516][ T5200] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 197.566601][ T5200] RIP: 0033:0x7feda3a68f89 [ 197.571210][ T5200] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 01 1a 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 [ 197.590992][ T5200] RSP: 002b:00007fff95208ab8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 197.599563][ T5200] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007feda3a68f89 [ 197.607736][ T5200] RDX: 0000000000000001 RSI: 0000000020009140 RDI: 0000000000000003 [ 197.615810][ T5200] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 [ 197.623892][ T5200] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 197.631972][ T5200] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 197.640126][ T5200] [ 197.643680][ T5200] Kernel Offset: disabled [ 197.648140][ T5200] Rebooting in 86400 seconds..