./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor519286111 <...> Warning: Permanently added '10.128.1.96' (ED25519) to the list of known hosts. execve("./syz-executor519286111", ["./syz-executor519286111"], 0x7ffd04446780 /* 10 vars */) = 0 brk(NULL) = 0x55555626f000 brk(0x55555626fd00) = 0x55555626fd00 arch_prctl(ARCH_SET_FS, 0x55555626f380) = 0 set_tid_address(0x55555626f650) = 5044 set_robust_list(0x55555626f660, 24) = 0 rseq(0x55555626fca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor519286111", 4096) = 27 getrandom("\x8a\x0f\xa6\xf5\x92\x2e\x78\xad", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55555626fd00 brk(0x555556290d00) = 0x555556290d00 brk(0x555556291000) = 0x555556291000 mprotect(0x7f2449f9f000, 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\xdb\x71\xe1\x87\x00\x00"}, [10 => 12]) = 0 ioctl(4, TUNSETIFINDEX, 0x20000040) = 0 [ 95.606841][ T5044] ------------[ cut here ]------------ [ 95.612329][ T5044] WARNING: CPU: 1 PID: 5044 at net/core/dev.c:9622 dev_index_reserve+0x1a2/0x1c0 [ 95.621596][ T5044] Modules linked in: [ 95.625615][ T5044] CPU: 1 PID: 5044 Comm: syz-executor519 Not tainted 6.6.0-rc5-syzkaller-01211-gcf8b49fbd041 #0 [ 95.636109][ T5044] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 [ 95.646266][ T5044] RIP: 0010:dev_index_reserve+0x1a2/0x1c0 [ 95.652063][ T5044] Code: 00 31 d2 4d 8d 45 50 b9 ff ff ff 7f 48 8d 74 24 20 e8 c2 5e 04 02 4c 89 e7 89 c3 e8 18 62 13 02 e9 48 ff ff ff e8 8e 05 56 f9 <0f> 0b bb ea ff ff ff e9 52 ff ff ff e8 0d aa 0f 02 66 66 2e 0f 1f [ 95.671782][ T5044] RSP: 0018:ffffc90003a5fc30 EFLAGS: 00010293 [ 95.677922][ T5044] RAX: 0000000000000000 RBX: 0000000087e171db RCX: 0000000000000000 [ 95.686002][ T5044] RDX: ffff88802450d940 RSI: ffffffff8831cb02 RDI: 0000000000000005 [ 95.694012][ T5044] RBP: 1ffff9200074bf86 R08: 0000000000000005 R09: 0000000000000000 [ 95.702105][ T5044] R10: 0000000087e171db R11: ffffffff910bc8f0 R12: ffff8880296cc010 [ 95.710160][ T5044] R13: ffffffff926122c0 R14: ffff8880296cc000 R15: ffff8880296cc0f8 [ 95.718193][ T5044] FS: 000055555626f380(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 95.727239][ T5044] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 95.733844][ T5044] CR2: 00000000005fdeb8 CR3: 0000000077a1f000 CR4: 00000000003506e0 [ 95.741877][ T5044] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 95.749924][ T5044] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 95.757957][ T5044] Call Trace: [ 95.761272][ T5044] [ 95.764216][ T5044] ? show_regs+0x8f/0xa0 [ 95.768577][ T5044] ? __warn+0xe6/0x380 [ 95.772719][ T5044] ? dev_index_reserve+0x1a2/0x1c0 [ 95.777925][ T5044] ? report_bug+0x3bc/0x580 [ 95.782498][ T5044] ? handle_bug+0x3c/0x70 [ 95.786932][ T5044] ? exc_invalid_op+0x17/0x40 [ 95.791679][ T5044] ? asm_exc_invalid_op+0x1a/0x20 [ 95.796792][ T5044] ? dev_index_reserve+0x1a2/0x1c0 [ 95.801948][ T5044] ? dev_index_reserve+0x1a2/0x1c0 [ 95.807143][ T5044] ? tc_run+0x530/0x530 [ 95.811338][ T5044] ? tun_net_init+0x4f2/0x6d0 [ 95.816108][ T5044] ? tun_attach.isra.0+0x1790/0x1790 [ 95.821437][ T5044] register_netdevice+0x69a/0x1490 [ 95.826647][ T5044] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 95.832582][ T5044] ? alloc_netdev_mqs+0xee6/0x1290 [ 95.837778][ T5044] __tun_chr_ioctl+0x3091/0x4700 [ 95.842776][ T5044] ? tun_chr_read_iter+0x290/0x290 [ 95.848017][ T5044] ? bpf_lsm_file_ioctl+0x9/0x10 [ 95.853015][ T5044] ? tun_chr_compat_ioctl+0x30/0x30 [ 95.858293][ T5044] __x64_sys_ioctl+0x18f/0x210 [ 95.863096][ T5044] do_syscall_64+0x38/0xb0 [ 95.867603][ T5044] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 95.873545][ T5044] RIP: 0033:0x7f2449f2c469 [ 95.878022][ T5044] 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 [ 95.897756][ T5044] RSP: 002b:00007ffc350b6f48 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 95.906289][ T5044] RAX: ffffffffffffffda RBX: 00007ffc350b7118 RCX: 00007f2449f2c469 [ 95.914310][ T5044] RDX: 0000000020000200 RSI: 00000000400454ca RDI: 0000000000000004 [ 95.922389][ T5044] RBP: 00007f2449f9f610 R08: 00007ffc350b7118 R09: 00007ffc350b7118 [ 95.930414][ T5044] R10: 00007ffc350b7118 R11: 0000000000000246 R12: 0000000000000001 [ 95.938541][ T5044] R13: 00007ffc350b7108 R14: 0000000000000001 R15: 0000000000000001 [ 95.946583][ T5044] [ 95.949612][ T5044] Kernel panic - not syncing: kernel: panic_on_warn set ... [ 95.956900][ T5044] CPU: 1 PID: 5044 Comm: syz-executor519 Not tainted 6.6.0-rc5-syzkaller-01211-gcf8b49fbd041 #0 [ 95.967321][ T5044] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/06/2023 [ 95.977466][ T5044] Call Trace: [ 95.980749][ T5044] [ 95.983684][ T5044] dump_stack_lvl+0xd9/0x1b0 [ 95.988293][ T5044] panic+0x6a6/0x750 [ 95.992234][ T5044] ? panic_smp_self_stop+0xa0/0xa0 [ 95.997415][ T5044] ? dev_index_reserve+0x1a2/0x1c0 [ 96.002552][ T5044] check_panic_on_warn+0xab/0xb0 [ 96.007518][ T5044] __warn+0xf2/0x380 [ 96.011440][ T5044] ? dev_index_reserve+0x1a2/0x1c0 [ 96.016573][ T5044] report_bug+0x3bc/0x580 [ 96.020938][ T5044] handle_bug+0x3c/0x70 [ 96.025114][ T5044] exc_invalid_op+0x17/0x40 [ 96.029650][ T5044] asm_exc_invalid_op+0x1a/0x20 [ 96.034527][ T5044] RIP: 0010:dev_index_reserve+0x1a2/0x1c0 [ 96.040265][ T5044] Code: 00 31 d2 4d 8d 45 50 b9 ff ff ff 7f 48 8d 74 24 20 e8 c2 5e 04 02 4c 89 e7 89 c3 e8 18 62 13 02 e9 48 ff ff ff e8 8e 05 56 f9 <0f> 0b bb ea ff ff ff e9 52 ff ff ff e8 0d aa 0f 02 66 66 2e 0f 1f [ 96.059992][ T5044] RSP: 0018:ffffc90003a5fc30 EFLAGS: 00010293 [ 96.066091][ T5044] RAX: 0000000000000000 RBX: 0000000087e171db RCX: 0000000000000000 [ 96.074089][ T5044] RDX: ffff88802450d940 RSI: ffffffff8831cb02 RDI: 0000000000000005 [ 96.082084][ T5044] RBP: 1ffff9200074bf86 R08: 0000000000000005 R09: 0000000000000000 [ 96.090082][ T5044] R10: 0000000087e171db R11: ffffffff910bc8f0 R12: ffff8880296cc010 [ 96.098074][ T5044] R13: ffffffff926122c0 R14: ffff8880296cc000 R15: ffff8880296cc0f8 [ 96.106075][ T5044] ? dev_index_reserve+0x1a2/0x1c0 [ 96.111230][ T5044] ? tc_run+0x530/0x530 [ 96.115420][ T5044] ? tun_net_init+0x4f2/0x6d0 [ 96.120130][ T5044] ? tun_attach.isra.0+0x1790/0x1790 [ 96.125449][ T5044] register_netdevice+0x69a/0x1490 [ 96.130590][ T5044] ? unregister_netdevice_queue+0x3c0/0x3c0 [ 96.136507][ T5044] ? alloc_netdev_mqs+0xee6/0x1290 [ 96.141668][ T5044] __tun_chr_ioctl+0x3091/0x4700 [ 96.146642][ T5044] ? tun_chr_read_iter+0x290/0x290 [ 96.151800][ T5044] ? bpf_lsm_file_ioctl+0x9/0x10 [ 96.156778][ T5044] ? tun_chr_compat_ioctl+0x30/0x30 [ 96.162007][ T5044] __x64_sys_ioctl+0x18f/0x210 [ 96.166795][ T5044] do_syscall_64+0x38/0xb0 [ 96.171246][ T5044] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 96.177171][ T5044] RIP: 0033:0x7f2449f2c469 [ 96.181603][ T5044] 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 [ 96.201233][ T5044] RSP: 002b:00007ffc350b6f48 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 96.209672][ T5044] RAX: ffffffffffffffda RBX: 00007ffc350b7118 RCX: 00007f2449f2c469 [ 96.217662][ T5044] RDX: 0000000020000200 RSI: 00000000400454ca RDI: 0000000000000004 [ 96.225654][ T5044] RBP: 00007f2449f9f610 R08: 00007ffc350b7118 R09: 00007ffc350b7118 [ 96.233644][ T5044] R10: 00007ffc350b7118 R11: 0000000000000246 R12: 0000000000000001 [ 96.241635][ T5044] R13: 00007ffc350b7108 R14: 0000000000000001 R15: 0000000000000001 [ 96.249657][ T5044] [ 96.253015][ T5044] Kernel Offset: disabled [ 96.257458][ T5044] Rebooting in 86400 seconds..