./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2013166100 <...> Warning: Permanently added '10.128.1.132' (ED25519) to the list of known hosts. execve("./syz-executor2013166100", ["./syz-executor2013166100"], 0x7ffd2c75a690 /* 10 vars */) = 0 brk(NULL) = 0x555561674000 brk(0x555561674d00) = 0x555561674d00 arch_prctl(ARCH_SET_FS, 0x555561674380) = 0 set_tid_address(0x555561674650) = 5778 set_robust_list(0x555561674660, 24) = 0 rseq(0x555561674ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2013166100", 4096) = 28 getrandom("\x4a\xc3\xa2\x18\x20\x28\x72\xe1", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555561674d00 brk(0x555561695d00) = 0x555561695d00 brk(0x555561696000) = 0x555561696000 mprotect(0x7f7ed72b7000, 16384, PROT_READ) = 0 mmap(0x3ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x3ffffffff000 mmap(0x400000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x400000000000 mmap(0x400001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x400001000000 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555561674650) = 5779 ./strace-static-x86_64: Process 5779 attached [pid 5779] set_robust_list(0x555561674660, 24) = 0 [pid 5779] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5779] getppid() = 0 [pid 5779] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5779] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5779] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5779] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5779] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5779] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5779] unshare(CLONE_NEWNS) = 0 [pid 5779] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5779] unshare(CLONE_NEWIPC) = 0 [pid 5779] unshare(CLONE_NEWCGROUP) = 0 [pid 5779] unshare(CLONE_NEWUTS) = 0 [pid 5779] unshare(CLONE_SYSVSEM) = 0 [pid 5779] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5779] write(3, "16777216", 8) = 8 [pid 5779] close(3) = 0 [pid 5779] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5779] write(3, "536870912", 9) = 9 [pid 5779] close(3) = 0 [pid 5779] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5779] write(3, "1024", 4) = 4 [pid 5779] close(3) = 0 [pid 5779] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5779] write(3, "8192", 4) = 4 [pid 5779] close(3) = 0 [pid 5779] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5779] write(3, "1024", 4) = 4 [pid 5779] close(3) = 0 [pid 5779] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5779] write(3, "1024", 4) = 4 [pid 5779] close(3) = 0 [pid 5779] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5779] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5779] close(3) = 0 [pid 5779] getpid() = 1 [pid 5779] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [ 195.474923][ T5806] dump_stack_lvl+0x216/0x2d0 [ 195.479726][ T5806] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 195.485683][ T5806] dump_stack+0x1e/0x24 [ 195.489960][ T5806] panic+0x4e2/0xcf0 [ 195.494037][ T5806] ? kmsan_get_metadata+0xe1/0x1c0 [ 195.499296][ T5806] kmsan_report+0x2c7/0x2d0 [ 195.503971][ T5806] ? __napi_schedule_irqoff+0x2ec/0x3d0 [ 195.509630][ T5806] ? kmsan_get_metadata+0x13e/0x1c0 [ 195.514942][ T5806] ? __msan_warning+0x95/0x120 [ 195.519807][ T5806] ? ppp_sync_send+0x21c/0xb00 [ 195.524707][ T5806] ? ppp_input+0x1f1/0xe60 [ 195.529339][ T5806] ? pppoe_rcv_core+0x1d3/0x720 [ 195.534364][ T5806] ? sk_backlog_rcv+0x13b/0x420 [ 195.539336][ T5806] ? __release_sock+0x1da/0x330 [ 195.544345][ T5806] ? release_sock+0x6b/0x250 [ 195.549026][ T5806] ? pppoe_sendmsg+0xb35/0xc50 [ 195.553914][ T5806] ? __sock_sendmsg+0x30f/0x380 [ 195.558899][ T5806] ? ____sys_sendmsg+0x903/0xb60 [ 195.563997][ T5806] ? ___sys_sendmsg+0x28d/0x3c0 [ 195.568961][ T5806] ? __sys_sendmmsg+0x2ff/0x880 [ 195.573926][ T5806] ? __x64_sys_sendmmsg+0xbc/0x120 [ 195.579168][ T5806] ? x64_sys_call+0x33c2/0x3c30 [ 195.584172][ T5806] ? do_syscall_64+0xcd/0x1e0 [ 195.588938][ T5806] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 195.595139][ T5806] ? enqueue_to_backlog+0xaf9/0xd80 [ 195.600444][ T5806] ? stack_depot_save_flags+0x2c/0x750 [ 195.606029][ T5806] ? kmsan_get_metadata+0x13e/0x1c0 [ 195.611347][ T5806] ? kmsan_get_metadata+0x13e/0x1c0 [ 195.616683][ T5806] ? kmsan_get_metadata+0x13e/0x1c0 [ 195.621995][ T5806] ? kmsan_get_metadata+0x13e/0x1c0 [ 195.627349][ T5806] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 195.633352][ T5806] ? kmsan_get_metadata+0x13e/0x1c0 [ 195.638704][ T5806] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 195.645263][ T5806] ? kmsan_get_metadata+0x13e/0x1c0 [ 195.650612][ T5806] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 195.656623][ T5806] __msan_warning+0x95/0x120 [ 195.661359][ T5806] ppp_sync_send+0x21c/0xb00 [ 195.666152][ T5806] ? kmsan_get_metadata+0x13e/0x1c0 [ 195.671509][ T5806] ? __pfx_ppp_sync_send+0x10/0x10 [ 195.676771][ T5806] ppp_input+0x1f1/0xe60 [ 195.681163][ T5806] pppoe_rcv_core+0x1d3/0x720 [ 195.685990][ T5806] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 195.691945][ T5806] ? __pfx_pppoe_rcv_core+0x10/0x10 [ 195.697307][ T5806] ? __pfx_tcp_v4_do_rcv+0x10/0x10 [ 195.702544][ T5806] sk_backlog_rcv+0x13b/0x420 [ 195.707358][ T5806] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 195.713369][ T5806] __release_sock+0x1da/0x330 [ 195.718191][ T5806] release_sock+0x6b/0x250 [ 195.722722][ T5806] pppoe_sendmsg+0xb35/0xc50 [ 195.727458][ T5806] ? __pfx_pppoe_sendmsg+0x10/0x10 [ 195.732707][ T5806] ? __pfx_pppoe_sendmsg+0x10/0x10 [ 195.737950][ T5806] __sock_sendmsg+0x30f/0x380 [ 195.742810][ T5806] ____sys_sendmsg+0x903/0xb60 [ 195.747751][ T5806] ? kmsan_get_metadata+0x13e/0x1c0 [ 195.753063][ T5806] ___sys_sendmsg+0x28d/0x3c0 [ 195.757841][ T5806] ? kmsan_internal_set_shadow_origin+0x69/0x100 [ 195.764318][ T5806] ? _raw_spin_unlock_irqrestore+0x3f/0x60 [ 195.770275][ T5806] ? stack_depot_save_flags+0x6db/0x750 [ 195.775988][ T5806] ? kmsan_get_metadata+0x13e/0x1c0 [ 195.781311][ T5806] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 195.787265][ T5806] ? kmsan_get_metadata+0x13e/0x1c0 [ 195.792598][ T5806] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 195.798515][ T5806] __sys_sendmmsg+0x2ff/0x880 [ 195.803311][ T5806] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 195.809290][ T5806] ? kmsan_get_metadata+0x13e/0x1c0 [ 195.814629][ T5806] ? ptrace_notify+0x263/0x320 [ 195.819533][ T5806] __x64_sys_sendmmsg+0xbc/0x120 [ 195.824606][ T5806] x64_sys_call+0x33c2/0x3c30 [ 195.829416][ T5806] do_syscall_64+0xcd/0x1e0 [ 195.834051][ T5806] ? clear_bhb_loop+0x25/0x80 [ 195.838944][ T5806] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 195.844960][ T5806] RIP: 0033:0x7f7ed723f619 [ 195.849450][ T5806] 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 [ 195.869190][ T5806] RSP: 002b:00007ffcae5ba3b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 195.877783][ T5806] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f7ed723f619 [ 195.885832][ T5806] RDX: 0000000000000001 RSI: 0000400000001640 RDI: 0000000000000004 [ 195.893878][ T5806] RBP: 00007ffcae5ba3f0 R08: 0000000000000001 R09: 0000000000000001 [ 195.901931][ T5806] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000f4240 [ 195.909990][ T5806] R13: 00007f7ed728c441 R14: 00007ffcae5ba3d4 R15: 00007ffcae5ba3e0 [ 195.918061][ T5806] [ 195.921464][ T5806] Kernel Offset: disabled [ 195.925878][ T5806] Rebooting in 86400 seconds..