./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3060779190 <...> Warning: Permanently added '10.128.1.72' (ED25519) to the list of known hosts. execve("./syz-executor3060779190", ["./syz-executor3060779190"], 0x7ffcee8556b0 /* 10 vars */) = 0 brk(NULL) = 0x555555719000 brk(0x555555719d00) = 0x555555719d00 arch_prctl(ARCH_SET_FS, 0x555555719380) = 0 set_tid_address(0x555555719650) = 5047 set_robust_list(0x555555719660, 24) = 0 rseq(0x555555719ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3060779190", 4096) = 28 getrandom("\xc8\xd3\x27\x1b\x45\x96\x69\x05", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555719d00 brk(0x55555573ad00) = 0x55555573ad00 brk(0x55555573b000) = 0x55555573b000 mprotect(0x7f06cb05f000, 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 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5048 attached , child_tidptr=0x555555719650) = 5048 [pid 5048] set_robust_list(0x555555719660, 24) = 0 [pid 5048] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5048] setpgid(0, 0) = 0 [pid 5048] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5048] write(3, "1000", 4) = 4 [pid 5048] close(3) = 0 [pid 5048] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 3 [pid 5048] write(3, "#! ./file0\n", 11) = 11 [pid 5048] openat(AT_FDCWD, "/dev/net/tun", O_RDONLY) = 4 [pid 5048] socket(AF_NETLINK, SOCK_RAW|SOCK_NONBLOCK, NETLINK_ROUTE) = 5 [pid 5048] 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) [pid 5048] getsockname(5, {sa_family=AF_NETLINK, sa_data="\x00\x00\x4d\x30\xb8\xc8\x00\x00"}, [10 => 12]) = 0 [pid 5048] ioctl(4, TUNSETIFINDEX, 0x20000040) = 0 [ 93.543407][ T5048] ------------[ cut here ]------------ [ 93.549254][ T5048] WARNING: CPU: 1 PID: 5048 at net/core/dev.c:9600 dev_index_reserve+0x1a2/0x1c0 [ 93.558462][ T5048] Modules linked in: [ 93.562397][ T5048] CPU: 1 PID: 5048 Comm: syz-executor306 Not tainted 6.6.0-rc5-syzkaller-00159-g8702cf12e6ba #0 [ 93.572916][ T5048] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 [ 93.583684][ T5048] RIP: 0010:dev_index_reserve+0x1a2/0x1c0 [ 93.589518][ T5048] Code: 00 31 d2 4d 8d 45 50 b9 ff ff ff 7f 48 8d 74 24 20 e8 02 3f 03 02 4c 89 e7 89 c3 e8 c8 48 12 02 e9 48 ff ff ff e8 fe 7b 56 f9 <0f> 0b bb ea ff ff ff e9 52 ff ff ff e8 bd 90 0e 02 66 66 2e 0f 1f [ 93.609242][ T5048] RSP: 0018:ffffc9000380fc30 EFLAGS: 00010293 [ 93.615463][ T5048] RAX: 0000000000000000 RBX: 00000000c8b8304d RCX: 0000000000000000 [ 93.623487][ T5048] RDX: ffff88802748bb80 RSI: ffffffff88314ac2 RDI: 0000000000000005 [ 93.631565][ T5048] RBP: 1ffff92000701f86 R08: 0000000000000005 R09: 0000000000000000 [ 93.639604][ T5048] R10: 00000000c8b8304d R11: ffffffff910c2d40 R12: ffff88807ae2c010 [ 93.647665][ T5048] R13: ffffffff9260f200 R14: ffff88807ae2c000 R15: ffff88807ae2c0f8 [ 93.655798][ T5048] FS: 0000555555719380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 93.664840][ T5048] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 93.671488][ T5048] CR2: 0000000000000000 CR3: 0000000072cdb000 CR4: 00000000003506e0 [ 93.679556][ T5048] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 93.687610][ T5048] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 93.695656][ T5048] Call Trace: [ 93.698966][ T5048] [ 93.701917][ T5048] ? show_regs+0x8f/0xa0 [ 93.706244][ T5048] ? __warn+0xe6/0x380 [ 93.710376][ T5048] ? dev_index_reserve+0x1a2/0x1c0 [ 93.715587][ T5048] ? report_bug+0x3bc/0x580 [ 93.720145][ T5048] ? handle_bug+0x3c/0x70 [ 93.724528][ T5048] ? exc_invalid_op+0x17/0x40 [ 93.729326][ T5048] ? asm_exc_invalid_op+0x1a/0x20 [ 93.734438][ T5048] ? dev_index_reserve+0x1a2/0x1c0 [ 93.739678][ T5048] ? dev_index_reserve+0x1a2/0x1c0 [ 93.744908][ T5048] ? tc_run+0x530/0x530 [ 93.749119][ T5048] ? tun_net_init+0x4f2/0x6d0 [ 93.753835][ T5048] ? tun_attach.isra.0+0x1790/0x1790 [ 93.759231][ T5048] register_netdevice+0x69a/0x1490 [ 93.764418][ T5048] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 93.770422][ T5048] ? alloc_netdev_mqs+0xee6/0x1290 [ 93.775655][ T5048] __tun_chr_ioctl+0x3091/0x4700 [ 93.780671][ T5048] ? tun_chr_read_iter+0x290/0x290 [ 93.785885][ T5048] ? bpf_lsm_file_ioctl+0x9/0x10 [ 93.790897][ T5048] ? tun_chr_compat_ioctl+0x30/0x30 [ 93.796203][ T5048] __x64_sys_ioctl+0x18f/0x210 [ 93.801019][ T5048] do_syscall_64+0x38/0xb0 [ 93.805529][ T5048] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 93.811479][ T5048] RIP: 0033:0x7f06cafecb79 [ 93.815969][ T5048] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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 [ 93.835691][ T5048] RSP: 002b:00007ffce4de9308 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 93.844157][ T5048] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f06cafecb79 [ 93.852221][ T5048] RDX: 0000000020000200 RSI: 00000000400454ca RDI: 0000000000000004 [ 93.860289][ T5048] RBP: 00007f06cb05f5f0 R08: 0000000000000006 R09: 0000000000000006 [ 93.868393][ T5048] R10: 0000000000000006 R11: 0000000000000246 R12: 0000000000000001 [ 93.876449][ T5048] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 93.884487][ T5048] [ 93.887565][ T5048] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 93.894858][ T5048] CPU: 1 PID: 5048 Comm: syz-executor306 Not tainted 6.6.0-rc5-syzkaller-00159-g8702cf12e6ba #0 [ 93.905290][ T5048] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 [ 93.915362][ T5048] Call Trace: [ 93.918657][ T5048] [ 93.921598][ T5048] dump_stack_lvl+0xd9/0x1b0 [ 93.926222][ T5048] panic+0x6a6/0x750 [ 93.930161][ T5048] ? panic_smp_self_stop+0xa0/0xa0 [ 93.935350][ T5048] ? dev_index_reserve+0x1a2/0x1c0 [ 93.940512][ T5048] check_panic_on_warn+0xab/0xb0 [ 93.945481][ T5048] __warn+0xf2/0x380 [ 93.949406][ T5048] ? dev_index_reserve+0x1a2/0x1c0 [ 93.954544][ T5048] report_bug+0x3bc/0x580 [ 93.958903][ T5048] handle_bug+0x3c/0x70 [ 93.963084][ T5048] exc_invalid_op+0x17/0x40 [ 93.967614][ T5048] asm_exc_invalid_op+0x1a/0x20 [ 93.972504][ T5048] RIP: 0010:dev_index_reserve+0x1a2/0x1c0 [ 93.978276][ T5048] Code: 00 31 d2 4d 8d 45 50 b9 ff ff ff 7f 48 8d 74 24 20 e8 02 3f 03 02 4c 89 e7 89 c3 e8 c8 48 12 02 e9 48 ff ff ff e8 fe 7b 56 f9 <0f> 0b bb ea ff ff ff e9 52 ff ff ff e8 bd 90 0e 02 66 66 2e 0f 1f [ 93.997913][ T5048] RSP: 0018:ffffc9000380fc30 EFLAGS: 00010293 [ 94.004008][ T5048] RAX: 0000000000000000 RBX: 00000000c8b8304d RCX: 0000000000000000 [ 94.012018][ T5048] RDX: ffff88802748bb80 RSI: ffffffff88314ac2 RDI: 0000000000000005 [ 94.020010][ T5048] RBP: 1ffff92000701f86 R08: 0000000000000005 R09: 0000000000000000 [ 94.028005][ T5048] R10: 00000000c8b8304d R11: ffffffff910c2d40 R12: ffff88807ae2c010 [ 94.036009][ T5048] R13: ffffffff9260f200 R14: ffff88807ae2c000 R15: ffff88807ae2c0f8 [ 94.044015][ T5048] ? dev_index_reserve+0x1a2/0x1c0 [ 94.049182][ T5048] ? tc_run+0x530/0x530 [ 94.053363][ T5048] ? tun_net_init+0x4f2/0x6d0 [ 94.058071][ T5048] ? tun_attach.isra.0+0x1790/0x1790 [ 94.063392][ T5048] register_netdevice+0x69a/0x1490 [ 94.068536][ T5048] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 94.074454][ T5048] ? alloc_netdev_mqs+0xee6/0x1290 [ 94.079602][ T5048] __tun_chr_ioctl+0x3091/0x4700 [ 94.084580][ T5048] ? tun_chr_read_iter+0x290/0x290 [ 94.089749][ T5048] ? bpf_lsm_file_ioctl+0x9/0x10 [ 94.094721][ T5048] ? tun_chr_compat_ioctl+0x30/0x30 [ 94.099961][ T5048] __x64_sys_ioctl+0x18f/0x210 [ 94.104765][ T5048] do_syscall_64+0x38/0xb0 [ 94.109214][ T5048] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 94.115149][ T5048] RIP: 0033:0x7f06cafecb79 [ 94.119584][ T5048] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 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 [ 94.139237][ T5048] RSP: 002b:00007ffce4de9308 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 94.147685][ T5048] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f06cafecb79 [ 94.155685][ T5048] RDX: 0000000020000200 RSI: 00000000400454ca RDI: 0000000000000004 [ 94.163679][ T5048] RBP: 00007f06cb05f5f0 R08: 0000000000000006 R09: 0000000000000006 [ 94.171676][ T5048] R10: 0000000000000006 R11: 0000000000000246 R12: 0000000000000001 [ 94.179676][ T5048] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 94.187688][ T5048] [ 94.190929][ T5048] Kernel Offset: disabled [ 94.195368][ T5048] Rebooting in 86400 seconds..