./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2277325164 <...> Warning: Permanently added '10.128.0.55' (ED25519) to the list of known hosts. execve("./syz-executor2277325164", ["./syz-executor2277325164"], 0x7ffe93886f60 /* 10 vars */) = 0 brk(NULL) = 0x5555565f7000 brk(0x5555565f7d00) = 0x5555565f7d00 arch_prctl(ARCH_SET_FS, 0x5555565f7380) = 0 set_tid_address(0x5555565f7650) = 5031 set_robust_list(0x5555565f7660, 24) = 0 rseq(0x5555565f7ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2277325164", 4096) = 28 getrandom("\x1f\x92\x71\x0f\x48\x49\xcf\x75", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555565f7d00 brk(0x555556618d00) = 0x555556618d00 brk(0x555556619000) = 0x555556619000 mprotect(0x7fafeb90a000, 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 socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 3 write(3, "#! ./file0\n", 11) = 11 openat(AT_FDCWD, "/dev/net/tun", O_RDONLY) = 4 socket(AF_NETLINK, SOCK_RAW|SOCK_NONBLOCK, NETLINK_ROUTE) = 5 sendmsg(5, {msg_name=NULL, msg_namelen=919, msg_iov=[{iov_base=NULL, iov_len=65424}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = -1 EFAULT (Bad address) getsockname(5, {sa_family=AF_NETLINK, sa_data="\x00\x00\x41\xc0\x92\xe2\x00\x00"}, [10 => 12]) = 0 ioctl(4, TUNSETIFINDEX, 0x20000040) = 0 [ 55.204136][ T5031] ------------[ cut here ]------------ [ 55.209673][ T5031] WARNING: CPU: 0 PID: 5031 at net/core/dev.c:9596 dev_index_reserve+0x1a2/0x1c0 [ 55.218915][ T5031] Modules linked in: [ 55.222850][ T5031] CPU: 0 PID: 5031 Comm: syz-executor227 Not tainted 6.6.0-rc5-syzkaller-00072-g401644852d0b #0 [ 55.233330][ T5031] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 [ 55.243440][ T5031] RIP: 0010:dev_index_reserve+0x1a2/0x1c0 [ 55.249208][ T5031] Code: 00 31 d2 4d 8d 45 50 b9 ff ff ff 7f 48 8d 74 24 20 e8 22 50 03 02 4c 89 e7 89 c3 e8 68 5b 12 02 e9 48 ff ff ff e8 1e 7d 56 f9 <0f> 0b bb ea ff ff ff e9 52 ff ff ff e8 5d a3 0e 02 66 66 2e 0f 1f [ 55.268888][ T5031] RSP: 0018:ffffc90003a8fc30 EFLAGS: 00010293 [ 55.274972][ T5031] RAX: 0000000000000000 RBX: 00000000e292c041 RCX: 0000000000000000 [ 55.283029][ T5031] RDX: ffff88801c5c0000 RSI: ffffffff883149a2 RDI: 0000000000000005 [ 55.291034][ T5031] RBP: 1ffff92000751f86 R08: 0000000000000005 R09: 0000000000000000 [ 55.299043][ T5031] R10: 00000000e292c041 R11: ffffffff910cd5f0 R12: ffff88807337c010 [ 55.307024][ T5031] R13: ffffffff9260f200 R14: ffff88807337c000 R15: ffff88807337c0f8 [ 55.315045][ T5031] FS: 00005555565f7380(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 55.324024][ T5031] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 55.330658][ T5031] CR2: 0000000000000000 CR3: 000000007f2ae000 CR4: 0000000000350ef0 [ 55.339237][ T5031] Call Trace: [ 55.342506][ T5031] [ 55.345423][ T5031] ? show_regs+0x8f/0xa0 [ 55.349708][ T5031] ? __warn+0xe6/0x380 [ 55.353800][ T5031] ? dev_index_reserve+0x1a2/0x1c0 [ 55.358975][ T5031] ? report_bug+0x3bc/0x580 [ 55.363521][ T5031] ? handle_bug+0x3c/0x70 [ 55.367869][ T5031] ? exc_invalid_op+0x17/0x40 [ 55.372586][ T5031] ? asm_exc_invalid_op+0x1a/0x20 [ 55.377602][ T5031] ? dev_index_reserve+0x1a2/0x1c0 [ 55.382745][ T5031] ? dev_index_reserve+0x1a2/0x1c0 [ 55.387885][ T5031] ? tc_run+0x530/0x530 [ 55.392092][ T5031] ? tun_net_init+0x4f2/0x6d0 [ 55.396808][ T5031] ? tun_attach.isra.0+0x1790/0x1790 [ 55.402142][ T5031] register_netdevice+0x69a/0x1490 [ 55.407275][ T5031] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 55.413198][ T5031] ? alloc_netdev_mqs+0xee6/0x1290 [ 55.418337][ T5031] __tun_chr_ioctl+0x3091/0x4700 [ 55.423394][ T5031] ? tun_chr_read_iter+0x290/0x290 [ 55.428547][ T5031] ? bpf_lsm_file_ioctl+0x9/0x10 [ 55.433540][ T5031] ? tun_chr_compat_ioctl+0x30/0x30 [ 55.438792][ T5031] __x64_sys_ioctl+0x18f/0x210 [ 55.443550][ T5031] do_syscall_64+0x38/0xb0 [ 55.447954][ T5031] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 55.453893][ T5031] RIP: 0033:0x7fafeb897469 [ 55.458325][ T5031] Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 00 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 [ 55.478011][ T5031] RSP: 002b:00007ffea7582ed8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 55.486479][ T5031] RAX: ffffffffffffffda RBX: 00007ffea75830a8 RCX: 00007fafeb897469 [ 55.494498][ T5031] RDX: 0000000020000200 RSI: 00000000400454ca RDI: 0000000000000004 [ 55.502534][ T5031] RBP: 00007fafeb90a610 R08: 00007ffea75830a8 R09: 00007ffea75830a8 [ 55.510571][ T5031] R10: 00007ffea75830a8 R11: 0000000000000246 R12: 0000000000000001 [ 55.518550][ T5031] R13: 00007ffea7583098 R14: 0000000000000001 R15: 0000000000000001 [ 55.526628][ T5031] [ 55.529685][ T5031] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 55.536950][ T5031] CPU: 0 PID: 5031 Comm: syz-executor227 Not tainted 6.6.0-rc5-syzkaller-00072-g401644852d0b #0 [ 55.547356][ T5031] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 [ 55.557394][ T5031] Call Trace: [ 55.560659][ T5031] [ 55.563587][ T5031] dump_stack_lvl+0xd9/0x1b0 [ 55.568165][ T5031] panic+0x6a6/0x750 [ 55.572048][ T5031] ? panic_smp_self_stop+0xa0/0xa0 [ 55.577152][ T5031] ? dev_index_reserve+0x1a2/0x1c0 [ 55.582265][ T5031] check_panic_on_warn+0xab/0xb0 [ 55.587230][ T5031] __warn+0xf2/0x380 [ 55.591113][ T5031] ? dev_index_reserve+0x1a2/0x1c0 [ 55.596207][ T5031] report_bug+0x3bc/0x580 [ 55.600524][ T5031] handle_bug+0x3c/0x70 [ 55.604665][ T5031] exc_invalid_op+0x17/0x40 [ 55.609159][ T5031] asm_exc_invalid_op+0x1a/0x20 [ 55.614002][ T5031] RIP: 0010:dev_index_reserve+0x1a2/0x1c0 [ 55.619717][ T5031] Code: 00 31 d2 4d 8d 45 50 b9 ff ff ff 7f 48 8d 74 24 20 e8 22 50 03 02 4c 89 e7 89 c3 e8 68 5b 12 02 e9 48 ff ff ff e8 1e 7d 56 f9 <0f> 0b bb ea ff ff ff e9 52 ff ff ff e8 5d a3 0e 02 66 66 2e 0f 1f [ 55.639330][ T5031] RSP: 0018:ffffc90003a8fc30 EFLAGS: 00010293 [ 55.645395][ T5031] RAX: 0000000000000000 RBX: 00000000e292c041 RCX: 0000000000000000 [ 55.653362][ T5031] RDX: ffff88801c5c0000 RSI: ffffffff883149a2 RDI: 0000000000000005 [ 55.661338][ T5031] RBP: 1ffff92000751f86 R08: 0000000000000005 R09: 0000000000000000 [ 55.669310][ T5031] R10: 00000000e292c041 R11: ffffffff910cd5f0 R12: ffff88807337c010 [ 55.677317][ T5031] R13: ffffffff9260f200 R14: ffff88807337c000 R15: ffff88807337c0f8 [ 55.685296][ T5031] ? dev_index_reserve+0x1a2/0x1c0 [ 55.690417][ T5031] ? tc_run+0x530/0x530 [ 55.694568][ T5031] ? tun_net_init+0x4f2/0x6d0 [ 55.699261][ T5031] ? tun_attach.isra.0+0x1790/0x1790 [ 55.704557][ T5031] register_netdevice+0x69a/0x1490 [ 55.709667][ T5031] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 55.715551][ T5031] ? alloc_netdev_mqs+0xee6/0x1290 [ 55.720662][ T5031] __tun_chr_ioctl+0x3091/0x4700 [ 55.725599][ T5031] ? tun_chr_read_iter+0x290/0x290 [ 55.730712][ T5031] ? bpf_lsm_file_ioctl+0x9/0x10 [ 55.735644][ T5031] ? tun_chr_compat_ioctl+0x30/0x30 [ 55.740837][ T5031] __x64_sys_ioctl+0x18f/0x210 [ 55.745596][ T5031] do_syscall_64+0x38/0xb0 [ 55.750004][ T5031] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 55.755891][ T5031] RIP: 0033:0x7fafeb897469 [ 55.760297][ T5031] Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 00 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 [ 55.779907][ T5031] RSP: 002b:00007ffea7582ed8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 55.788330][ T5031] RAX: ffffffffffffffda RBX: 00007ffea75830a8 RCX: 00007fafeb897469 [ 55.796293][ T5031] RDX: 0000000020000200 RSI: 00000000400454ca RDI: 0000000000000004 [ 55.804253][ T5031] RBP: 00007fafeb90a610 R08: 00007ffea75830a8 R09: 00007ffea75830a8 [ 55.812214][ T5031] R10: 00007ffea75830a8 R11: 0000000000000246 R12: 0000000000000001 [ 55.820188][ T5031] R13: 00007ffea7583098 R14: 0000000000000001 R15: 0000000000000001 [ 55.828160][ T5031] [ 55.831884][ T5031] Kernel Offset: disabled [ 55.836266][ T5031] Rebooting in 86400 seconds..