./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1081999736 <...> Warning: Permanently added '10.128.1.159' (ED25519) to the list of known hosts. execve("./syz-executor1081999736", ["./syz-executor1081999736"], 0x7ffc28dc64d0 /* 10 vars */) = 0 brk(NULL) = 0x555577fa6000 brk(0x555577fa6d00) = 0x555577fa6d00 arch_prctl(ARCH_SET_FS, 0x555577fa6380) = 0 set_tid_address(0x555577fa6650) = 5016 set_robust_list(0x555577fa6660, 24) = 0 rseq(0x555577fa6ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1081999736", 4096) = 28 getrandom("\x7f\xb7\x30\xe8\xaf\x7d\x46\xf6", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555577fa6d00 brk(0x555577fc7d00) = 0x555577fc7d00 brk(0x555577fc8000) = 0x555577fc8000 mprotect(0x7fadbd331000, 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=0x555577fa6650) = 5017 ./strace-static-x86_64: Process 5017 attached [pid 5017] set_robust_list(0x555577fa6660, 24) = 0 [pid 5017] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5017] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5017] setsid() = 1 [pid 5017] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5017] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5017] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5017] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5017] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5017] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5017] unshare(CLONE_NEWNS) = 0 [pid 5017] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5017] unshare(CLONE_NEWIPC) = 0 [pid 5017] unshare(CLONE_NEWCGROUP) = 0 [pid 5017] unshare(CLONE_NEWUTS) = 0 [pid 5017] unshare(CLONE_SYSVSEM) = 0 [pid 5017] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5017] write(3, "16777216", 8) = 8 [pid 5017] close(3) = 0 [pid 5017] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5017] write(3, "536870912", 9) = 9 [pid 5017] close(3) = 0 [pid 5017] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5017] write(3, "1024", 4) = 4 [pid 5017] close(3) = 0 [pid 5017] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5017] write(3, "8192", 4) = 4 [pid 5017] close(3) = 0 [pid 5017] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5017] write(3, "1024", 4) = 4 [pid 5017] close(3) = 0 [pid 5017] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5017] write(3, "1024", 4) = 4 [pid 5017] close(3) = 0 [pid 5017] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5017] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5017] close(3) = 0 [pid 5017] getpid() = 1 [pid 5017] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [ 156.521967][ T5020] dump_stack_lvl+0x216/0x2d0 [ 156.527098][ T5020] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 156.533161][ T5020] dump_stack+0x1e/0x30 [ 156.537575][ T5020] panic+0x4e2/0xcd0 [ 156.541911][ T5020] ? kmsan_get_metadata+0x101/0x1d0 [ 156.547458][ T5020] kmsan_report+0x2d5/0x2e0 [ 156.552339][ T5020] ? __msan_warning+0x95/0x120 [ 156.557796][ T5020] ? nf_flow_offload_ip_hook+0x79a/0x3e40 [ 156.563679][ T5020] ? nf_hook_slow+0xf2/0x3f0 [ 156.568908][ T5020] ? __netif_receive_skb_core+0x430b/0x6190 [ 156.574981][ T5020] ? __netif_receive_skb+0xca/0xa00 [ 156.580770][ T5020] ? netif_receive_skb+0x58/0x660 [ 156.586822][ T5020] ? tun_rx_batched+0x3ee/0x980 [ 156.593665][ T5020] ? tun_get_user+0x5566/0x69e0 [ 156.599070][ T5020] ? tun_chr_write_iter+0x3af/0x5d0 [ 156.604552][ T5020] ? vfs_write+0xb63/0x1520 [ 156.610041][ T5020] ? ksys_write+0x20f/0x4c0 [ 156.614982][ T5020] ? __x64_sys_write+0x93/0xe0 [ 156.620411][ T5020] ? do_syscall_64+0xd5/0x1f0 [ 156.625221][ T5020] ? entry_SYSCALL_64_after_hwframe+0x72/0x7a [ 156.631445][ T5020] ? kmsan_get_metadata+0x146/0x1d0 [ 156.636821][ T5020] ? kmsan_internal_set_shadow_origin+0x66/0xe0 [ 156.643220][ T5020] ? kmsan_get_metadata+0x146/0x1d0 [ 156.648531][ T5020] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 156.654527][ T5020] ? _raw_spin_unlock_irqrestore+0x3f/0x60 [ 156.660722][ T5020] ? stack_depot_save_flags+0x66d/0x6e0 [ 156.666545][ T5020] ? kmsan_get_metadata+0x146/0x1d0 [ 156.671975][ T5020] ? kmsan_get_metadata+0x146/0x1d0 [ 156.677453][ T5020] ? kmsan_get_metadata+0x146/0x1d0 [ 156.684937][ T5020] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 156.693778][ T5020] __msan_warning+0x95/0x120 [ 156.698973][ T5020] nf_flow_offload_ip_hook+0x79a/0x3e40 [ 156.705005][ T5020] ? kmsan_internal_set_shadow_origin+0x66/0xe0 [ 156.711675][ T5020] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 156.717687][ T5020] ? _raw_spin_unlock_irqrestore+0x3f/0x60 [ 156.723682][ T5020] ? kmsan_get_metadata+0x146/0x1d0 [ 156.729043][ T5020] ? __pfx_nf_flow_offload_ip_hook+0x10/0x10 [ 156.735712][ T5020] nf_hook_slow+0xf2/0x3f0 [ 156.742412][ T5020] __netif_receive_skb_core+0x430b/0x6190 [ 156.749431][ T5020] ? _raw_spin_unlock_irqrestore+0x3f/0x60 [ 156.755720][ T5020] ? kmsan_get_metadata+0x146/0x1d0 [ 156.761551][ T5020] __netif_receive_skb+0xca/0xa00 [ 156.766915][ T5020] ? kmsan_get_metadata+0x146/0x1d0 [ 156.772490][ T5020] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 156.778559][ T5020] ? __rcu_read_lock+0x46/0x70 [ 156.783844][ T5020] netif_receive_skb+0x58/0x660 [ 156.789441][ T5020] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 156.795646][ T5020] ? tun_rx_batched+0x37c/0x980 [ 156.800809][ T5020] tun_rx_batched+0x3ee/0x980 [ 156.805968][ T5020] ? kmsan_get_metadata+0x146/0x1d0 [ 156.811366][ T5020] ? kmsan_get_shadow_origin_ptr+0x4d/0xb0 [ 156.818039][ T5020] tun_get_user+0x5566/0x69e0 [ 156.822854][ T5020] ? kmsan_get_metadata+0x146/0x1d0 [ 156.828211][ T5020] ? kmsan_internal_set_shadow_origin+0x66/0xe0 [ 156.834716][ T5020] ? ref_tracker_alloc+0x3e0/0x7e0 [ 156.840151][ T5020] ? kmsan_get_metadata+0x146/0x1d0 [ 156.845645][ T5020] tun_chr_write_iter+0x3af/0x5d0 [ 156.850799][ T5020] ? __pfx_tun_chr_write_iter+0x10/0x10 [ 156.856602][ T5020] vfs_write+0xb63/0x1520 [ 156.861197][ T5020] ksys_write+0x20f/0x4c0 [ 156.865774][ T5020] __x64_sys_write+0x93/0xe0 [ 156.870598][ T5020] do_syscall_64+0xd5/0x1f0 [ 156.875310][ T5020] entry_SYSCALL_64_after_hwframe+0x72/0x7a [ 156.881514][ T5020] RIP: 0033:0x7fadbd2b7e10 [ 156.886185][ T5020] Code: 40 00 48 c7 c2 b8 ff ff ff f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 80 3d 91 e2 07 00 00 74 17 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 58 c3 0f 1f 80 00 00 00 00 48 83 ec 28 48 89 [ 156.906448][ T5020] RSP: 002b:00007ffe7c62c0f8 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [ 156.915055][ T5020] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fadbd2b7e10 [ 156.923156][ T5020] RDX: 000000000000000e RSI: 0000000020000000 RDI: 00000000000000c8 [ 156.931268][ T5020] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 156.939792][ T5020] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000 [ 156.947929][ T5020] R13: 0000000000000000 R14: 0000000000000000 R15: 00007ffe7c62c110 [ 156.956372][ T5020] [ 156.959665][ T5020] Kernel Offset: disabled [ 156.964328][ T5020] Rebooting in 86400 seconds..