./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3316214331 <...> Warning: Permanently added '10.128.0.203' (ED25519) to the list of known hosts. execve("./syz-executor3316214331", ["./syz-executor3316214331"], 0x7ffe64428ed0 /* 10 vars */) = 0 brk(NULL) = 0x5555566fa000 brk(0x5555566fad00) = 0x5555566fad00 arch_prctl(ARCH_SET_FS, 0x5555566fa380) = 0 set_tid_address(0x5555566fa650) = 5006 set_robust_list(0x5555566fa660, 24) = 0 rseq(0x5555566faca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3316214331", 4096) = 28 getrandom("\x25\x2a\xbf\x0e\x6d\xa8\xa6\x36", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555566fad00 brk(0x55555671bd00) = 0x55555671bd00 brk(0x55555671c000) = 0x55555671c000 mprotect(0x7f752a56b000, 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 5007 attached , child_tidptr=0x5555566fa650) = 5007 [pid 5007] set_robust_list(0x5555566fa660, 24) = 0 [pid 5007] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5007] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5007] setsid() = 1 [pid 5007] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5007] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5007] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5007] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5007] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5007] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5007] unshare(CLONE_NEWNS) = 0 [pid 5007] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5007] unshare(CLONE_NEWIPC) = 0 [pid 5007] unshare(CLONE_NEWCGROUP) = 0 [pid 5007] unshare(CLONE_NEWUTS) = 0 [pid 5007] unshare(CLONE_SYSVSEM) = 0 [pid 5007] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5007] write(3, "16777216", 8) = 8 [pid 5007] close(3) = 0 [pid 5007] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5007] write(3, "536870912", 9) = 9 [pid 5007] close(3) = 0 [pid 5007] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5007] write(3, "1024", 4) = 4 [pid 5007] close(3) = 0 [pid 5007] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5007] write(3, "8192", 4) = 4 [pid 5007] close(3) = 0 [pid 5007] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5007] write(3, "1024", 4) = 4 [pid 5007] close(3) = 0 [pid 5007] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5007] write(3, "1024", 4) = 4 [pid 5007] close(3) = 0 [pid 5007] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5007] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5007] close(3) = 0 [pid 5007] getpid() = 1 [pid 5007] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [ 175.980072][ T5034] dump_stack_lvl+0x1bf/0x240 [ 175.984935][ T5034] dump_stack+0x1e/0x20 [ 175.989227][ T5034] panic+0x4de/0xc90 [ 175.993293][ T5034] ? add_taint+0x108/0x1a0 [ 175.997922][ T5034] kmsan_report+0x2d0/0x2d0 [ 176.002684][ T5034] ? __msan_warning+0x96/0x110 [ 176.007691][ T5034] ? IP6_ECN_decapsulate+0x7df/0x1e50 [ 176.013328][ T5034] ? ip6ip6_dscp_ecn_decapsulate+0x178/0x1b0 [ 176.019488][ T5034] ? __ip6_tnl_rcv+0xd4e/0x1590 [ 176.024577][ T5034] ? ip6_tnl_rcv+0xce/0x100 [ 176.029318][ T5034] ? gre_rcv+0x143f/0x1870 [ 176.033896][ T5034] ? ip6_protocol_deliver_rcu+0xda6/0x2a60 [ 176.039956][ T5034] ? ip6_input+0x15d/0x430 [ 176.044608][ T5034] ? ip6_mc_input+0xa7e/0xc80 [ 176.049512][ T5034] ? ip6_rcv_finish+0x5db/0x870 [ 176.054625][ T5034] ? ipv6_rcv+0xda/0x390 [ 176.059111][ T5034] ? __netif_receive_skb+0x1a6/0x5a0 [ 176.064633][ T5034] ? netif_receive_skb+0x58/0x660 [ 176.069881][ T5034] ? tun_rx_batched+0x3ee/0x980 [ 176.074894][ T5034] ? tun_get_user+0x53af/0x66d0 [ 176.079967][ T5034] ? tun_chr_write_iter+0x3af/0x5d0 [ 176.085374][ T5034] ? vfs_write+0x786/0x1200 [ 176.089991][ T5034] ? ksys_write+0x20f/0x4c0 [ 176.094623][ T5034] ? __x64_sys_write+0x93/0xd0 [ 176.099647][ T5034] ? do_syscall_64+0x6d/0x140 [ 176.104472][ T5034] ? entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 176.110720][ T5034] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 176.116787][ T5034] ? kmsan_internal_memmove_metadata+0x91/0x220 [ 176.123262][ T5034] ? kmsan_internal_set_shadow_origin+0x66/0xe0 [ 176.129708][ T5034] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 176.135775][ T5034] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 176.141785][ T5034] __msan_warning+0x96/0x110 [ 176.146711][ T5034] IP6_ECN_decapsulate+0x7df/0x1e50 [ 176.152300][ T5034] ip6ip6_dscp_ecn_decapsulate+0x178/0x1b0 [ 176.158316][ T5034] ? skb_scrub_packet+0x471/0x540 [ 176.163571][ T5034] __ip6_tnl_rcv+0xd4e/0x1590 [ 176.168424][ T5034] ? ip6_tnl_rcv+0x100/0x100 [ 176.173173][ T5034] ? ip6_tnl_rcv+0x100/0x100 [ 176.177927][ T5034] ip6_tnl_rcv+0xce/0x100 [ 176.182442][ T5034] gre_rcv+0x143f/0x1870 [ 176.186844][ T5034] ? __rcu_read_unlock+0x47/0xd0 [ 176.192046][ T5034] ? erspan_build_header_v2+0x4f0/0x4f0 [ 176.197819][ T5034] ip6_protocol_deliver_rcu+0xda6/0x2a60 [ 176.203714][ T5034] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 176.209785][ T5034] ip6_input+0x15d/0x430 [ 176.214202][ T5034] ? ip6_input+0x430/0x430 [ 176.218873][ T5034] ip6_mc_input+0xa7e/0xc80 [ 176.223629][ T5034] ? ip6_input_finish+0x1a0/0x1a0 [ 176.228867][ T5034] ip6_rcv_finish+0x5db/0x870 [ 176.233719][ T5034] ipv6_rcv+0xda/0x390 [ 176.238016][ T5034] ? net_zcopy_put_abort+0xa0/0xa0 [ 176.243404][ T5034] __netif_receive_skb+0x1a6/0x5a0 [ 176.248674][ T5034] ? ip6_rcv_finish+0x870/0x870 [ 176.253696][ T5034] netif_receive_skb+0x58/0x660 [ 176.258750][ T5034] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 176.264820][ T5034] ? tun_rx_batched+0x37c/0x980 [ 176.269827][ T5034] tun_rx_batched+0x3ee/0x980 [ 176.274645][ T5034] ? kmsan_get_shadow_origin_ptr+0x4d/0xa0 [ 176.280639][ T5034] tun_get_user+0x53af/0x66d0 [ 176.285579][ T5034] ? kmsan_internal_set_shadow_origin+0x66/0xe0 [ 176.292126][ T5034] tun_chr_write_iter+0x3af/0x5d0 [ 176.297425][ T5034] ? tun_chr_read_iter+0x670/0x670 [ 176.302738][ T5034] vfs_write+0x786/0x1200 [ 176.307229][ T5034] ksys_write+0x20f/0x4c0 [ 176.311736][ T5034] __x64_sys_write+0x93/0xd0 [ 176.316525][ T5034] do_syscall_64+0x6d/0x140 [ 176.321263][ T5034] entry_SYSCALL_64_after_hwframe+0x63/0x6b [ 176.327388][ T5034] RIP: 0033:0x7f752a4f2ce9 [ 176.331895][ T5034] 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 [ 176.351664][ T5034] RSP: 002b:00007ffd52227988 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 176.360258][ T5034] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f752a4f2ce9 [ 176.368375][ T5034] RDX: 000000000000fdef RSI: 0000000020000240 RDI: 0000000000000003 [ 176.376567][ T5034] RBP: 00000000000f4240 R08: 0000000000000000 R09: 0000000100000000 [ 176.384676][ T5034] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd522279e0 [ 176.392813][ T5034] R13: 0000000000000001 R14: 00007ffd522279e0 R15: 0000000000000003 [ 176.400915][ T5034] [ 176.404452][ T5034] Kernel Offset: disabled [ 176.408859][ T5034] Rebooting in 86400 seconds..