./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2636169136 <...> Warning: Permanently added '10.128.0.56' (ED25519) to the list of known hosts. execve("./syz-executor2636169136", ["./syz-executor2636169136"], 0x7ffece025fe0 /* 10 vars */) = 0 brk(NULL) = 0x5555813c1000 brk(0x5555813c1d00) = 0x5555813c1d00 arch_prctl(ARCH_SET_FS, 0x5555813c1380) = 0 set_tid_address(0x5555813c1650) = 5812 set_robust_list(0x5555813c1660, 24) = 0 rseq(0x5555813c1ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2636169136", 4096) = 28 getrandom("\xf6\xeb\x0b\xd9\x41\x11\xda\xde", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555813c1d00 brk(0x5555813e2d00) = 0x5555813e2d00 brk(0x5555813e3000) = 0x5555813e3000 mprotect(0x7fec9b24f000, 16384, PROT_READ) = 0 mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000 mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000 mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555813c1650) = 5813 ./strace-static-x86_64: Process 5813 attached [pid 5813] set_robust_list(0x5555813c1660, 24) = 0 [pid 5813] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5813] getppid() = 0 [pid 5813] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5813] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5813] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5813] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5813] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5813] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5813] unshare(CLONE_NEWNS) = 0 [pid 5813] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5813] unshare(CLONE_NEWIPC) = 0 [pid 5813] unshare(CLONE_NEWCGROUP) = 0 [pid 5813] unshare(CLONE_NEWUTS) = 0 [pid 5813] unshare(CLONE_SYSVSEM) = 0 [pid 5813] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5813] write(3, "16777216", 8) = 8 [pid 5813] close(3) = 0 [pid 5813] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5813] write(3, "536870912", 9) = 9 [pid 5813] close(3) = 0 [pid 5813] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5813] write(3, "1024", 4) = 4 [pid 5813] close(3) = 0 [pid 5813] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5813] write(3, "8192", 4) = 4 [pid 5813] close(3) = 0 [pid 5813] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5813] write(3, "1024", 4) = 4 [pid 5813] close(3) = 0 [pid 5813] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5813] write(3, "1024", 4) = 4 [pid 5813] close(3) = 0 [pid 5813] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5813] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5813] close(3) = 0 [pid 5813] getpid() = 1 [pid 5813] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [ 215.670322][ T5839] __dump_stack+0x26/0x30 [ 215.674810][ T5839] dump_stack_lvl+0x53/0x270 [ 215.679587][ T5839] ? kmsan_get_shadow_origin_ptr+0x4a/0xb0 [ 215.685700][ T5839] dump_stack+0x1e/0x25 [ 215.690077][ T5839] panic+0x4bd/0xd50 [ 215.694267][ T5839] kmsan_report+0x31c/0x320 [ 215.698935][ T5839] ? __msan_warning+0x1b/0x30 [ 215.703795][ T5839] ? ip6gre_tunnel_xmit+0xfee/0x1cf0 [ 215.709348][ T5839] ? dev_hard_start_xmit+0x22c/0xa30 [ 215.714816][ T5839] ? sch_direct_xmit+0x3b2/0xcf0 [ 215.720015][ T5839] ? __dev_queue_xmit+0x35e6/0x5e20 [ 215.725391][ T5839] ? br_dev_queue_push_xmit+0xa12/0xc20 [ 215.731134][ T5839] ? br_forward_finish+0xfe/0x330 [ 215.736345][ T5839] ? __br_forward+0x8cc/0xb30 [ 215.741249][ T5839] ? maybe_deliver+0x3e8/0x590 [ 215.746258][ T5839] ? br_flood+0x45b/0xb70 [ 215.750730][ T5839] ? br_handle_frame_finish+0x2800/0x2a30 [ 215.756721][ T5839] ? br_handle_frame+0x1837/0x2190 [ 215.762062][ T5839] ? __netif_receive_skb_core+0x202e/0x70c0 [ 215.768166][ T5839] ? __netif_receive_skb+0xcc/0xac0 [ 215.773625][ T5839] ? netif_receive_skb+0x57/0x630 [ 215.778851][ T5839] ? tun_rx_batched+0x1df/0x980 [ 215.783913][ T5839] ? tun_get_user+0x4ee0/0x6b40 [ 215.788911][ T5839] ? tun_chr_write_iter+0x3e9/0x5c0 [ 215.794257][ T5839] ? vfs_write+0xb48/0x1580 [ 215.798914][ T5839] ? __x64_sys_write+0x1fb/0x4d0 [ 215.804055][ T5839] ? x64_sys_call+0x38c3/0x3db0 [ 215.809140][ T5839] ? do_syscall_64+0xd9/0x210 [ 215.813982][ T5839] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 215.820207][ T5839] ? kmsan_get_shadow_origin_ptr+0x4a/0xb0 [ 215.826224][ T5839] ? ip6gre_tunnel_xmit+0x9a1/0x1cf0 [ 215.831772][ T5839] ? filter_irq_stacks+0x49/0x190 [ 215.836969][ T5839] ? stack_depot_save_flags+0x35/0x7b0 [ 215.842654][ T5839] ? kmsan_get_metadata+0xfb/0x160 [ 215.847945][ T5839] ? kmsan_internal_set_shadow_origin+0x79/0x110 [ 215.854455][ T5839] ? kmsan_get_metadata+0xfb/0x160 [ 215.859743][ T5839] __msan_warning+0x1b/0x30 [ 215.864514][ T5839] ip6gre_tunnel_xmit+0xfee/0x1cf0 [ 215.869913][ T5839] ? kmsan_get_metadata+0xfb/0x160 [ 215.875367][ T5839] ? __pfx_ip6gre_tunnel_xmit+0x10/0x10 [ 215.881215][ T5839] dev_hard_start_xmit+0x22c/0xa30 [ 215.886563][ T5839] sch_direct_xmit+0x3b2/0xcf0 [ 215.891575][ T5839] ? kmsan_get_metadata+0x150/0x160 [ 215.897042][ T5839] ? kmsan_internal_set_shadow_origin+0x79/0x110 [ 215.903549][ T5839] __dev_queue_xmit+0x35e6/0x5e20 [ 215.908797][ T5839] ? stack_depot_save+0x12/0x20 [ 215.913878][ T5839] ? kmsan_internal_chain_origin+0xb6/0xd0 [ 215.919886][ T5839] ? vfs_write+0xb48/0x1580 [ 215.924574][ T5839] ? kmsan_internal_chain_origin+0x5d/0xd0 [ 215.930626][ T5839] ? __msan_chain_origin+0xc3/0x140 [ 215.936018][ T5839] ? kmsan_get_metadata+0xfb/0x160 [ 215.941408][ T5839] ? __dev_queue_xmit+0x30c/0x5e20 [ 215.946796][ T5839] br_dev_queue_push_xmit+0xa12/0xc20 [ 215.952444][ T5839] ? kmsan_get_shadow_origin_ptr+0x4a/0xb0 [ 215.958514][ T5839] ? __rcu_read_unlock+0x47/0xd0 [ 215.963593][ T5839] br_forward_finish+0xfe/0x330 [ 215.968601][ T5839] ? __pfx_br_dev_queue_push_xmit+0x10/0x10 [ 215.974658][ T5839] __br_forward+0x8cc/0xb30 [ 215.979433][ T5839] ? __pfx_br_forward_finish+0x10/0x10 [ 215.985073][ T5839] maybe_deliver+0x3e8/0x590 [ 215.989973][ T5839] br_flood+0x45b/0xb70 [ 215.994389][ T5839] br_handle_frame_finish+0x2800/0x2a30 [ 216.000366][ T5839] br_handle_frame+0x1837/0x2190 [ 216.005638][ T5839] ? pep_ctrlreq_error+0x160/0x6e0 [ 216.010975][ T5839] ? __pfx_br_handle_frame_finish+0x10/0x10 [ 216.017075][ T5839] ? __pfx_br_handle_frame+0x10/0x10 [ 216.022539][ T5839] __netif_receive_skb_core+0x202e/0x70c0 [ 216.028533][ T5839] ? kmsan_get_metadata+0xfb/0x160 [ 216.033815][ T5839] ? kmsan_get_metadata+0xfb/0x160 [ 216.039124][ T5839] ? kmsan_get_shadow_origin_ptr+0x4a/0xb0 [ 216.045258][ T5839] ? filter_irq_stacks+0x49/0x190 [ 216.050441][ T5839] ? kmsan_get_metadata+0xfb/0x160 [ 216.056392][ T5839] __netif_receive_skb+0xcc/0xac0 [ 216.061764][ T5839] netif_receive_skb+0x57/0x630 [ 216.066819][ T5839] ? kmsan_get_shadow_origin_ptr+0x4a/0xb0 [ 216.072895][ T5839] ? tun_rx_batched+0x16c/0x980 [ 216.077900][ T5839] tun_rx_batched+0x1df/0x980 [ 216.082724][ T5839] ? kmsan_get_metadata+0xfb/0x160 [ 216.088097][ T5839] tun_get_user+0x4ee0/0x6b40 [ 216.093001][ T5839] ? _raw_spin_unlock_irqrestore+0x3f/0x60 [ 216.098972][ T5839] ? stack_depot_save_flags+0x60f/0x7b0 [ 216.104674][ T5839] ? kmsan_get_metadata+0xfb/0x160 [ 216.109964][ T5839] ? kmsan_get_metadata+0xfb/0x160 [ 216.115277][ T5839] ? kmsan_internal_set_shadow_origin+0x79/0x110 [ 216.121898][ T5839] tun_chr_write_iter+0x3e9/0x5c0 [ 216.127149][ T5839] vfs_write+0xb48/0x1580 [ 216.131741][ T5839] ? __pfx_tun_chr_write_iter+0x10/0x10 [ 216.137480][ T5839] __x64_sys_write+0x1fb/0x4d0 [ 216.142512][ T5839] x64_sys_call+0x38c3/0x3db0 [ 216.147359][ T5839] do_syscall_64+0xd9/0x210 [ 216.152044][ T5839] ? irqentry_exit+0x16/0x60 [ 216.156811][ T5839] ? clear_bhb_loop+0x40/0x90 [ 216.161658][ T5839] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 216.167765][ T5839] RIP: 0033:0x7fec9b1d6850 [ 216.172360][ T5839] 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 71 d8 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 [ 216.192178][ T5839] RSP: 002b:00007fff1e8c0bb8 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [ 216.200955][ T5839] RAX: ffffffffffffffda RBX: 0000200000000000 RCX: 00007fec9b1d6850 [ 216.209154][ T5839] RDX: 0000000000000020 RSI: 0000200000000400 RDI: 00000000000000c8 [ 216.217387][ T5839] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 [ 216.225649][ T5839] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000 [ 216.233774][ T5839] R13: 0000000000000000 R14: 0000000000000000 R15: 00007fff1e8c0be0 [ 216.241956][ T5839] [ 216.245516][ T5839] Kernel Offset: disabled [ 216.250178][ T5839] Rebooting in 86400 seconds..