./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor85778553 <...> Warning: Permanently added '10.128.0.139' (ECDSA) to the list of known hosts. execve("./syz-executor85778553", ["./syz-executor85778553"], 0x7ffc1954a920 /* 10 vars */) = 0 brk(NULL) = 0x555555d2a000 brk(0x555555d2ac40) = 0x555555d2ac40 arch_prctl(ARCH_SET_FS, 0x555555d2a300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor85778553", 4096) = 26 brk(0x555555d4bc40) = 0x555555d4bc40 brk(0x555555d4c000) = 0x555555d4c000 mprotect(0x7f6d50ba9000, 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 openat(AT_FDCWD, "/sys/kernel/debug/failslab/ignore-gfp-wait", O_WRONLY|O_CLOEXEC) = 3 write(3, "N", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/sys/kernel/debug/fail_futex/ignore-private", O_WRONLY|O_CLOEXEC) = 3 write(3, "N", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/sys/kernel/debug/fail_page_alloc/ignore-gfp-highmem", O_WRONLY|O_CLOEXEC) = 3 write(3, "N", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/sys/kernel/debug/fail_page_alloc/ignore-gfp-wait", O_WRONLY|O_CLOEXEC) = 3 write(3, "N", 1) = 1 close(3) = 0 openat(AT_FDCWD, "/sys/kernel/debug/fail_page_alloc/min-order", O_WRONLY|O_CLOEXEC) = 3 write(3, "0", 1) = 1 close(3) = 0 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555d2a5d0) = 3607 ./strace-static-x86_64: Process 3607 attached [pid 3607] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 3607] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3607] setsid() = 1 [pid 3607] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 3607] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 3607] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 3607] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 3607] prlimit64(0, RLIMIT_CORE, {rlim_cur=0, rlim_max=0}, NULL) = 0 [pid 3607] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 3607] unshare(CLONE_NEWNS) = 0 [pid 3607] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 3607] unshare(CLONE_NEWIPC) = 0 [pid 3607] unshare(CLONE_NEWCGROUP) = 0 [pid 3607] unshare(CLONE_NEWUTS) = 0 [pid 3607] unshare(CLONE_SYSVSEM) = 0 [pid 3607] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3607] write(3, "16777216", 8) = 8 [pid 3607] close(3) = 0 [pid 3607] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 3607] write(3, "536870912", 9) = 9 [pid 3607] close(3) = 0 [pid 3607] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3607] write(3, "1024", 4) = 4 [pid 3607] close(3) = 0 [pid 3607] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3607] write(3, "8192", 4) = 4 [pid 3607] close(3) = 0 [pid 3607] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3607] write(3, "1024", 4) = 4 [pid 3607] close(3) = 0 [pid 3607] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 3607] write(3, "1024", 4) = 4 [pid 3607] close(3) = 0 [pid 3607] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 3607] write(3, "1024 1048576 500 1024", 21) = 21 [pid 3607] close(3) = 0 [pid 3607] getpid() = 1 [pid 3607] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b 45 31 f6 e9 8d fe ff ff 65 ff 05 61 2d 46 7e 48 c7 c0 40 9d [ 54.168861][ T3607] RSP: 0018:ffffc9000307f8e8 EFLAGS: 00010246 [ 54.174949][ T3607] RAX: 0000000000000000 RBX: 1ffff9200060ff1e RCX: 0000000000000000 [ 54.184279][ T3607] RDX: 0000000000000000 RSI: 0000000000000012 RDI: 0000000000000000 [ 54.192376][ T3607] RBP: 0000000000060820 R08: 0000000000000001 R09: 0000000000000000 [ 54.200489][ T3607] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000012 [ 54.208967][ T3607] R13: 0000000000000000 R14: 0000000000000012 R15: 0000000000000000 [ 54.216962][ T3607] FS: 0000555555d2a300(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 [ 54.226009][ T3607] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.232763][ T3607] CR2: 00007f6d50bad150 CR3: 0000000075282000 CR4: 00000000003506f0 [ 54.241547][ T3607] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 54.250027][ T3607] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 54.258933][ T3607] Call Trace: [ 54.262206][ T3607] [ 54.265125][ T3607] ? __alloc_pages_slowpath.constprop.0+0x2140/0x2140 [ 54.272048][ T3607] ? rcu_read_lock_sched_held+0x3a/0x70 [ 54.277625][ T3607] kmalloc_large_node+0x62/0x130 [ 54.282726][ T3607] __kmalloc_node_track_caller+0x37e/0x480 [ 54.288697][ T3607] ? tun_get_user+0x18b7/0x3a40 [ 54.293574][ T3607] ? __build_skb_around+0x274/0x340 [ 54.298860][ T3607] pskb_expand_head+0xf26/0x1070 [ 54.303852][ T3607] ? __local_bh_enable_ip+0xa0/0x120 [ 54.309198][ T3607] tun_get_user+0x18b7/0x3a40 [ 54.313885][ T3607] ? tun_build_skb+0x1160/0x1160 [ 54.318961][ T3607] ? lock_downgrade+0x6e0/0x6e0 [ 54.323843][ T3607] tun_chr_write_iter+0xdb/0x200 [ 54.328855][ T3607] new_sync_write+0x315/0x4d0 [ 54.333544][ T3607] ? new_sync_read+0x560/0x560 [ 54.338557][ T3607] ? rwlock_bug.part.0+0x90/0x90 [ 54.343515][ T3607] ? _raw_spin_lock_irq+0x41/0x50 [ 54.349475][ T3607] ? bpf_lsm_file_permission+0x5/0x10 [ 54.354852][ T3607] ? security_file_permission+0xab/0xd0 [ 54.360552][ T3607] vfs_write+0x7c0/0xac0 [ 54.364835][ T3607] ksys_write+0x127/0x250 [ 54.370793][ T3607] ? __ia32_sys_read+0xb0/0xb0 [ 54.375587][ T3607] ? lockdep_hardirqs_on+0x79/0x100 [ 54.380964][ T3607] ? _raw_spin_unlock_irq+0x2a/0x40 [ 54.386218][ T3607] ? ptrace_notify+0xfa/0x140 [ 54.391101][ T3607] do_syscall_64+0x35/0xb0 [ 54.395531][ T3607] entry_SYSCALL_64_after_hwframe+0x46/0xb0 [ 54.401712][ T3607] RIP: 0033:0x7f6d50b353d9 [ 54.406133][ T3607] Code: 28 c3 e8 4a 15 00 00 66 2e 0f 1f 84 00 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 c0 ff ff ff f7 d8 64 89 01 48 [ 54.426126][ T3607] RSP: 002b:00007ffec1e5b0f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 54.435489][ T3607] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f6d50b353d9 [ 54.443586][ T3607] RDX: 000000002000fd85 RSI: 0000000020000040 RDI: 0000000000000003 [ 54.452318][ T3607] RBP: 00007ffec1e5b110 R08: 0000000000000001 R09: 0000000000000000 [ 54.460404][ T3607] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 54.468809][ T3607] R13: 00007ffec1e5b130 R14: 0000000000000003 R15: 0000000000000000 [ 54.476784][ T3607] [ 54.479979][ T3607] Kernel panic - not syncing: panic_on_warn set ... [ 54.486588][ T3607] CPU: 0 PID: 3607 Comm: syz-executor857 Not tainted 5.19.0-rc4-next-20220628-syzkaller #0 [ 54.496552][ T3607] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 54.506601][ T3607] Call Trace: [ 54.509874][ T3607] [ 54.512800][ T3607] dump_stack_lvl+0xcd/0x134 [ 54.517401][ T3607] panic+0x2d7/0x636 [ 54.521317][ T3607] ? panic_print_sys_info.part.0+0x10b/0x10b [ 54.527307][ T3607] ? __warn.cold+0x248/0x2c4 [ 54.531901][ T3607] ? __alloc_pages+0x39e/0x510 [ 54.536665][ T3607] __warn.cold+0x259/0x2c4 [ 54.541086][ T3607] ? __alloc_pages+0x39e/0x510 [ 54.545852][ T3607] report_bug+0x1bc/0x210 [ 54.550196][ T3607] handle_bug+0x3c/0x60 [ 54.554354][ T3607] exc_invalid_op+0x14/0x40 [ 54.558854][ T3607] asm_exc_invalid_op+0x1b/0x20 [ 54.563703][ T3607] RIP: 0010:__alloc_pages+0x39e/0x510 [ 54.569088][ T3607] Code: ff ff 00 0f 84 33 fe ff ff 80 ce 01 e9 2b fe ff ff 83 fe 0a 0f 86 3e fd ff ff 80 3d 3a cf eb 0b 00 75 09 c6 05 31 cf eb 0b 01 <0f> 0b 45 31 f6 e9 8d fe ff ff 65 ff 05 61 2d 46 7e 48 c7 c0 40 9d [ 54.588690][ T3607] RSP: 0018:ffffc9000307f8e8 EFLAGS: 00010246 [ 54.594758][ T3607] RAX: 0000000000000000 RBX: 1ffff9200060ff1e RCX: 0000000000000000 [ 54.602722][ T3607] RDX: 0000000000000000 RSI: 0000000000000012 RDI: 0000000000000000 [ 54.610692][ T3607] RBP: 0000000000060820 R08: 0000000000000001 R09: 0000000000000000 [ 54.618659][ T3607] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000012 [ 54.626635][ T3607] R13: 0000000000000000 R14: 0000000000000012 R15: 0000000000000000 [ 54.634635][ T3607] ? __might_fault+0xd1/0x170 [ 54.639348][ T3607] ? __alloc_pages_slowpath.constprop.0+0x2140/0x2140 [ 54.646129][ T3607] ? rcu_read_lock_sched_held+0x3a/0x70 [ 54.651707][ T3607] kmalloc_large_node+0x62/0x130 [ 54.656660][ T3607] __kmalloc_node_track_caller+0x37e/0x480 [ 54.662490][ T3607] ? tun_get_user+0x18b7/0x3a40 [ 54.667352][ T3607] ? __build_skb_around+0x274/0x340 [ 54.672561][ T3607] pskb_expand_head+0xf26/0x1070 [ 54.677510][ T3607] ? __local_bh_enable_ip+0xa0/0x120 [ 54.682808][ T3607] tun_get_user+0x18b7/0x3a40 [ 54.687518][ T3607] ? tun_build_skb+0x1160/0x1160 [ 54.692472][ T3607] ? lock_downgrade+0x6e0/0x6e0 [ 54.697338][ T3607] tun_chr_write_iter+0xdb/0x200 [ 54.702285][ T3607] new_sync_write+0x315/0x4d0 [ 54.706969][ T3607] ? new_sync_read+0x560/0x560 [ 54.711739][ T3607] ? rwlock_bug.part.0+0x90/0x90 [ 54.716683][ T3607] ? _raw_spin_lock_irq+0x41/0x50 [ 54.721725][ T3607] ? bpf_lsm_file_permission+0x5/0x10 [ 54.727105][ T3607] ? security_file_permission+0xab/0xd0 [ 54.732674][ T3607] vfs_write+0x7c0/0xac0 [ 54.737006][ T3607] ksys_write+0x127/0x250 [ 54.741336][ T3607] ? __ia32_sys_read+0xb0/0xb0 [ 54.746097][ T3607] ? lockdep_hardirqs_on+0x79/0x100 [ 54.751298][ T3607] ? _raw_spin_unlock_irq+0x2a/0x40 [ 54.756503][ T3607] ? ptrace_notify+0xfa/0x140 [ 54.761186][ T3607] do_syscall_64+0x35/0xb0 [ 54.765615][ T3607] entry_SYSCALL_64_after_hwframe+0x46/0xb0 [ 54.771508][ T3607] RIP: 0033:0x7f6d50b353d9 [ 54.775920][ T3607] Code: 28 c3 e8 4a 15 00 00 66 2e 0f 1f 84 00 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 c0 ff ff ff f7 d8 64 89 01 48 [ 54.795608][ T3607] RSP: 002b:00007ffec1e5b0f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 54.804022][ T3607] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f6d50b353d9 [ 54.811986][ T3607] RDX: 000000002000fd85 RSI: 0000000020000040 RDI: 0000000000000003 [ 54.819952][ T3607] RBP: 00007ffec1e5b110 R08: 0000000000000001 R09: 0000000000000000 [ 54.827917][ T3607] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 54.835882][ T3607] R13: 00007ffec1e5b130 R14: 0000000000000003 R15: 0000000000000000 [ 54.843871][ T3607] [ 54.847179][ T3607] Kernel Offset: disabled [ 54.851575][ T3607] Rebooting in 86400 seconds..