./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1853583433 <...> Warning: Permanently added '10.128.0.128' (ED25519) to the list of known hosts. execve("./syz-executor1853583433", ["./syz-executor1853583433"], 0x7ffcdb519ca0 /* 10 vars */) = 0 brk(NULL) = 0x5555571b6000 brk(0x5555571b6d00) = 0x5555571b6d00 arch_prctl(ARCH_SET_FS, 0x5555571b6380) = 0 set_tid_address(0x5555571b6650) = 5016 set_robust_list(0x5555571b6660, 24) = 0 rseq(0x5555571b6ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1853583433", 4096) = 28 getrandom("\xb1\x7a\x46\x13\x55\xb4\xff\x0f", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555571b6d00 brk(0x5555571d7d00) = 0x5555571d7d00 brk(0x5555571d8000) = 0x5555571d8000 mprotect(0x7f6484a3e000, 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 5017 attached , child_tidptr=0x5555571b6650) = 5017 [pid 5017] set_robust_list(0x5555571b6660, 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<frame_sz = 16384 [ 45.498887][ T5017] WARNING: CPU: 0 PID: 5017 at net/core/filter.c:4121 bpf_xdp_adjust_tail+0x466/0xa10 [ 45.508457][ T5017] Modules linked in: [ 45.512330][ T5017] CPU: 0 PID: 5017 Comm: syz-executor185 Not tainted 6.5.0-rc2-syzkaller #0 [ 45.521019][ T5017] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023 [ 45.531087][ T5017] RIP: 0010:bpf_xdp_adjust_tail+0x466/0xa10 [ 45.537024][ T5017] Code: 84 db 74 0c 48 c7 c3 ea ff ff ff e9 5d fd ff ff e8 6f d0 54 f9 89 ee 48 c7 c7 80 cb 81 8b c6 05 6a 12 64 06 01 e8 3a 99 1b f9 <0f> 0b eb d6 e8 d1 bb a8 f9 e9 f1 fb ff ff e8 c7 bb a8 f9 e9 61 fc [ 45.556670][ T5017] RSP: 0018:ffffc90003b9f928 EFLAGS: 00010286 [ 45.562724][ T5017] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 45.570781][ T5017] RDX: ffff888027465940 RSI: ffffffff814d3c06 RDI: 0000000000000001 [ 45.578800][ T5017] RBP: 0000000000004000 R08: 0000000000000001 R09: 0000000000000000 [ 45.586851][ T5017] R10: 0000000000000000 R11: 0000000000000001 R12: ffff888079578f81 [ 45.595085][ T5017] R13: 0000000000000000 R14: ffffc90003b9faa0 R15: 0000000000000000 [ 45.603085][ T5017] FS: 00005555571b6380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 45.612034][ T5017] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 45.618639][ T5017] CR2: 0000000020001000 CR3: 0000000027ac7000 CR4: 0000000000350ef0 [ 45.626629][ T5017] Call Trace: [ 45.629891][ T5017] [ 45.632801][ T5017] ? __warn+0xe6/0x380 [ 45.636920][ T5017] ? __wake_up_klogd.part.0+0x99/0xf0 [ 45.642302][ T5017] ? bpf_xdp_adjust_tail+0x466/0xa10 [ 45.647611][ T5017] ? report_bug+0x3bc/0x580 [ 45.652124][ T5017] ? handle_bug+0x3c/0x70 [ 45.656474][ T5017] ? exc_invalid_op+0x17/0x40 [ 45.661152][ T5017] ? asm_exc_invalid_op+0x1a/0x20 [ 45.666211][ T5017] ? __warn_printk+0x1a6/0x350 [ 45.670980][ T5017] ? bpf_xdp_adjust_tail+0x466/0xa10 [ 45.676291][ T5017] ? bpf_xdp_adjust_tail+0x466/0xa10 [ 45.681592][ T5017] ? skb_headers_offset_update+0x129/0x260 [ 45.687503][ T5017] ? __cant_sleep+0x190/0x190 [ 45.692198][ T5017] ? pskb_expand_head+0x627/0x1170 [ 45.697364][ T5017] bpf_prog_4add87e5301a4105+0x1a/0x1c [ 45.702835][ T5017] bpf_prog_run_generic_xdp+0x57e/0x11e0 [ 45.708551][ T5017] do_xdp_generic+0x35c/0x770 [ 45.713229][ T5017] ? generic_xdp_tx+0x5d0/0x5d0 [ 45.718116][ T5017] tun_get_user+0x2340/0x3ca0 [ 45.722809][ T5017] ? ref_tracker_alloc+0x2ef/0x5a0 [ 45.727960][ T5017] ? tun_build_skb.constprop.0+0x1240/0x1240 [ 45.733953][ T5017] ? reacquire_held_locks+0x4b0/0x4b0 [ 45.739374][ T5017] tun_chr_write_iter+0xe8/0x210 [ 45.744317][ T5017] vfs_write+0x650/0xe40 [ 45.748944][ T5017] ? kernel_write+0x6c0/0x6c0 [ 45.753629][ T5017] ? find_held_lock+0x2d/0x110 [ 45.758427][ T5017] ? reacquire_held_locks+0x4b0/0x4b0 [ 45.763807][ T5017] ? __fget_light+0x1fc/0x260 [ 45.768512][ T5017] ksys_write+0x12f/0x250 [ 45.772849][ T5017] ? __ia32_sys_read+0xb0/0xb0 [ 45.777708][ T5017] ? lockdep_hardirqs_on+0x7d/0x100 [ 45.782925][ T5017] ? _raw_spin_unlock_irq+0x2e/0x50 [ 45.788162][ T5017] ? ptrace_notify+0xf4/0x130 [ 45.792873][ T5017] do_syscall_64+0x38/0xb0 [ 45.797336][ T5017] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 45.803250][ T5017] RIP: 0033:0x7f64849c34c0 [ 45.807696][ T5017] 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 e1 fb 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 [ 45.827384][ T5017] RSP: 002b:00007fff890dbe08 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [ 45.835853][ T5017] RAX: ffffffffffffffda RBX: 00007f6484a12070 RCX: 00007f64849c34c0 [ 45.843839][ T5017] RDX: 0000000000000e81 RSI: 0000000020001000 RDI: 00000000000000c8 [ 45.851857][ T5017] RBP: 00007fff890dbe18 R08: bb1414ac00000000 R09: bb1414ac00000000 [ 45.859873][ T5017] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000 [ 45.867860][ T5017] R13: 0000000000000000 R14: 00007fff890dbe20 R15: 00007f6484a12004 [ 45.875857][ T5017] [ 45.878879][ T5017] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 45.886135][ T5017] CPU: 0 PID: 5017 Comm: syz-executor185 Not tainted 6.5.0-rc2-syzkaller #0 [ 45.894787][ T5017] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/03/2023 [ 45.904852][ T5017] Call Trace: [ 45.908130][ T5017] [ 45.911047][ T5017] dump_stack_lvl+0xd9/0x1b0 [ 45.915628][ T5017] panic+0x6a4/0x750 [ 45.919507][ T5017] ? panic_smp_self_stop+0xa0/0xa0 [ 45.924599][ T5017] ? show_trace_log_lvl+0x29d/0x3c0 [ 45.929782][ T5017] ? bpf_xdp_adjust_tail+0x466/0xa10 [ 45.935070][ T5017] check_panic_on_warn+0xab/0xb0 [ 45.940000][ T5017] __warn+0xf2/0x380 [ 45.943888][ T5017] ? __wake_up_klogd.part.0+0x99/0xf0 [ 45.949244][ T5017] ? bpf_xdp_adjust_tail+0x466/0xa10 [ 45.954513][ T5017] report_bug+0x3bc/0x580 [ 45.958839][ T5017] handle_bug+0x3c/0x70 [ 45.962992][ T5017] exc_invalid_op+0x17/0x40 [ 45.967485][ T5017] asm_exc_invalid_op+0x1a/0x20 [ 45.972330][ T5017] RIP: 0010:bpf_xdp_adjust_tail+0x466/0xa10 [ 45.978233][ T5017] Code: 84 db 74 0c 48 c7 c3 ea ff ff ff e9 5d fd ff ff e8 6f d0 54 f9 89 ee 48 c7 c7 80 cb 81 8b c6 05 6a 12 64 06 01 e8 3a 99 1b f9 <0f> 0b eb d6 e8 d1 bb a8 f9 e9 f1 fb ff ff e8 c7 bb a8 f9 e9 61 fc [ 45.997830][ T5017] RSP: 0018:ffffc90003b9f928 EFLAGS: 00010286 [ 46.003886][ T5017] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 46.011846][ T5017] RDX: ffff888027465940 RSI: ffffffff814d3c06 RDI: 0000000000000001 [ 46.019822][ T5017] RBP: 0000000000004000 R08: 0000000000000001 R09: 0000000000000000 [ 46.027780][ T5017] R10: 0000000000000000 R11: 0000000000000001 R12: ffff888079578f81 [ 46.035739][ T5017] R13: 0000000000000000 R14: ffffc90003b9faa0 R15: 0000000000000000 [ 46.043702][ T5017] ? __warn_printk+0x1a6/0x350 [ 46.048463][ T5017] ? bpf_xdp_adjust_tail+0x466/0xa10 [ 46.053741][ T5017] ? skb_headers_offset_update+0x129/0x260 [ 46.059553][ T5017] ? __cant_sleep+0x190/0x190 [ 46.064235][ T5017] ? pskb_expand_head+0x627/0x1170 [ 46.069343][ T5017] bpf_prog_4add87e5301a4105+0x1a/0x1c [ 46.074980][ T5017] bpf_prog_run_generic_xdp+0x57e/0x11e0 [ 46.080708][ T5017] do_xdp_generic+0x35c/0x770 [ 46.085390][ T5017] ? generic_xdp_tx+0x5d0/0x5d0 [ 46.090268][ T5017] tun_get_user+0x2340/0x3ca0 [ 46.094954][ T5017] ? ref_tracker_alloc+0x2ef/0x5a0 [ 46.100064][ T5017] ? tun_build_skb.constprop.0+0x1240/0x1240 [ 46.106087][ T5017] ? reacquire_held_locks+0x4b0/0x4b0 [ 46.111508][ T5017] tun_chr_write_iter+0xe8/0x210 [ 46.116490][ T5017] vfs_write+0x650/0xe40 [ 46.120750][ T5017] ? kernel_write+0x6c0/0x6c0 [ 46.125431][ T5017] ? find_held_lock+0x2d/0x110 [ 46.130188][ T5017] ? reacquire_held_locks+0x4b0/0x4b0 [ 46.135556][ T5017] ? __fget_light+0x1fc/0x260 [ 46.140233][ T5017] ksys_write+0x12f/0x250 [ 46.144555][ T5017] ? __ia32_sys_read+0xb0/0xb0 [ 46.149311][ T5017] ? lockdep_hardirqs_on+0x7d/0x100 [ 46.154507][ T5017] ? _raw_spin_unlock_irq+0x2e/0x50 [ 46.159701][ T5017] ? ptrace_notify+0xf4/0x130 [ 46.164371][ T5017] do_syscall_64+0x38/0xb0 [ 46.168777][ T5017] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 46.174669][ T5017] RIP: 0033:0x7f64849c34c0 [ 46.179078][ T5017] 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 e1 fb 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 [ 46.198701][ T5017] RSP: 002b:00007fff890dbe08 EFLAGS: 00000202 ORIG_RAX: 0000000000000001 [ 46.207143][ T5017] RAX: ffffffffffffffda RBX: 00007f6484a12070 RCX: 00007f64849c34c0 [ 46.215108][ T5017] RDX: 0000000000000e81 RSI: 0000000020001000 RDI: 00000000000000c8 [ 46.223077][ T5017] RBP: 00007fff890dbe18 R08: bb1414ac00000000 R09: bb1414ac00000000 [ 46.231042][ T5017] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000 [ 46.239024][ T5017] R13: 0000000000000000 R14: 00007fff890dbe20 R15: 00007f6484a12004 [ 46.247002][ T5017] [ 46.250761][ T5017] Kernel Offset: disabled [ 46.255121][ T5017] Rebooting in 86400 seconds..