./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1622305510 <...> DUID 00:04:b8:64:54:4b:51:f9:b6:ea:77:bd:45:d1:95:a6:31:4f forked to background, child pid 3181 [ 26.288626][ T3182] 8021q: adding VLAN 0 to HW filter on device bond0 [ 26.292537][ T3182] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.117' (ECDSA) to the list of known hosts. execve("./syz-executor1622305510", ["./syz-executor1622305510"], 0x7ffd21eee870 /* 10 vars */) = 0 brk(NULL) = 0x555555d51000 brk(0x555555d51c40) = 0x555555d51c40 arch_prctl(ARCH_SET_FS, 0x555555d51300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor1622305510", 4096) = 28 brk(0x555555d72c40) = 0x555555d72c40 brk(0x555555d73000) = 0x555555d73000 mprotect(0x7fa83aaca000, 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./strace-static-x86_64: Process 3610 attached [pid 3610] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL [pid 3609] <... clone resumed>, child_tidptr=0x555555d515d0) = 3610 [pid 3610] <... mount resumed>) = -1 EBUSY (Device or resource busy) [pid 3610] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 3610] setsid() = 1 [pid 3610] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 3610] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 3610] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 3610] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 3610] prlimit64(0, RLIMIT_CORE, {rlim_cur=0, rlim_max=0}, NULL) = 0 [pid 3610] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 3610] unshare(CLONE_NEWNS) = 0 [pid 3610] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 3610] unshare(CLONE_NEWIPC) = 0 [pid 3610] unshare(CLONE_NEWCGROUP) = 0 [pid 3610] unshare(CLONE_NEWUTS) = 0 [pid 3610] unshare(CLONE_SYSVSEM) = 0 [pid 3610] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3610] write(3, "16777216", 8) = 8 [pid 3610] close(3) = 0 [pid 3610] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 3610] write(3, "536870912", 9) = 9 [pid 3610] close(3) = 0 [pid 3610] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3610] write(3, "1024", 4) = 4 [pid 3610] close(3) = 0 [pid 3610] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 3610] write(3, "8192", 4) = 4 [pid 3610] close(3) = 0 [pid 3610] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 3610] write(3, "1024", 4) = 4 [pid 3610] close(3) = 0 [pid 3610] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 3610] write(3, "1024", 4) = 4 [pid 3610] close(3) = 0 [pid 3610] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 3610] write(3, "1024 1048576 500 1024", 21) = 21 [pid 3610] close(3) = 0 [pid 3610] getpid() = 1 [pid 3610] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< 0b 45 31 f6 e9 8d fe ff ff 65 ff 05 81 d4 45 7e 48 c7 c0 80 8e [ 51.159829][ T3610] RSP: 0018:ffffc9000303f8e0 EFLAGS: 00010246 [ 51.166222][ T3610] RAX: 0000000000000000 RBX: 1ffff92000607f1d RCX: 0000000000000000 [ 51.174215][ T3610] RDX: 0000000000000000 RSI: 0000000000000012 RDI: 0000000000000000 [ 51.182522][ T3610] RBP: 0000000000060a20 R08: 0000000000000001 R09: 0000000000000000 [ 51.190690][ T3610] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000012 [ 51.198851][ T3610] R13: 0000000000000000 R14: 0000000000000012 R15: 0000000000000000 [ 51.206917][ T3610] FS: 0000555555d51300(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 51.216077][ T3610] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.222711][ T3610] CR2: 00007f83800ec300 CR3: 00000000172a4000 CR4: 00000000003506e0 [ 51.230789][ T3610] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 51.238895][ T3610] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 51.246948][ T3610] Call Trace: [ 51.250246][ T3610] [ 51.253190][ T3610] ? __alloc_pages_slowpath.constprop.0+0x2160/0x2160 [ 51.260377][ T3610] ? __napi_alloc_skb+0x70/0x310 [ 51.265453][ T3610] ? rcu_read_lock_sched_held+0x3a/0x70 [ 51.271507][ T3610] kmalloc_large_node+0x62/0x130 [ 51.276624][ T3610] __kmalloc_node_track_caller+0x2ec/0x360 [ 51.282456][ T3610] ? tun_get_user+0x1ef8/0x3b00 [ 51.287691][ T3610] ? __build_skb_around+0x274/0x340 [ 51.292926][ T3610] pskb_expand_head+0xf23/0x1070 [ 51.298046][ T3610] ? __local_bh_enable_ip+0xa0/0x120 [ 51.303359][ T3610] tun_get_user+0x1ef8/0x3b00 [ 51.308234][ T3610] ? tun_build_skb+0x1170/0x1170 [ 51.313216][ T3610] ? lock_downgrade+0x6e0/0x6e0 [ 51.318159][ T3610] tun_chr_write_iter+0xdb/0x200 [ 51.323117][ T3610] new_sync_write+0x38a/0x560 [ 51.327858][ T3610] ? new_sync_read+0x5f0/0x5f0 [ 51.332638][ T3610] ? _raw_spin_lock_irq+0x41/0x50 [ 51.337771][ T3610] ? bpf_lsm_file_permission+0x5/0x10 [ 51.343164][ T3610] ? security_file_permission+0xab/0xd0 [ 51.348793][ T3610] vfs_write+0x7c0/0xac0 [ 51.353061][ T3610] ksys_write+0x127/0x250 [ 51.357488][ T3610] ? __ia32_sys_read+0xb0/0xb0 [ 51.362298][ T3610] ? lockdep_hardirqs_on+0x79/0x100 [ 51.367595][ T3610] ? _raw_spin_unlock_irq+0x2a/0x40 [ 51.372808][ T3610] ? ptrace_notify+0xfa/0x140 [ 51.377563][ T3610] do_syscall_64+0x35/0xb0 [ 51.381997][ T3610] entry_SYSCALL_64_after_hwframe+0x46/0xb0 [ 51.387944][ T3610] RIP: 0033:0x7fa83aa56a79 [ 51.392370][ T3610] 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 [ 51.412047][ T3610] RSP: 002b:00007ffef7bd8a48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 51.420557][ T3610] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fa83aa56a79 [ 51.428611][ T3610] RDX: 000000002000032a RSI: 0000000020000300 RDI: 0000000000000003 [ 51.436659][ T3610] RBP: 00007ffef7bd8a60 R08: 0000000000000001 R09: 00007ffef7bd8a77 [ 51.444643][ T3610] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 51.452678][ T3610] R13: 00007ffef7bd8a60 R14: 0000000000000003 R15: 0000000000000000 [ 51.460745][ T3610] [ 51.463760][ T3610] Kernel panic - not syncing: panic_on_warn set ... [ 51.470341][ T3610] CPU: 1 PID: 3610 Comm: syz-executor162 Not tainted 5.18.0-syzkaller-12109-gc76acfb7e19d #0 [ 51.480486][ T3610] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.490545][ T3610] Call Trace: [ 51.493830][ T3610] [ 51.496763][ T3610] dump_stack_lvl+0xcd/0x134 [ 51.501365][ T3610] panic+0x2d7/0x636 [ 51.505268][ T3610] ? panic_print_sys_info.part.0+0x10b/0x10b [ 51.511268][ T3610] ? __warn.cold+0x1d9/0x2cd [ 51.515952][ T3610] ? __alloc_pages+0x39e/0x510 [ 51.520723][ T3610] __warn.cold+0x1ea/0x2cd [ 51.525143][ T3610] ? __alloc_pages+0x39e/0x510 [ 51.530029][ T3610] report_bug+0x1bc/0x210 [ 51.534373][ T3610] handle_bug+0x3c/0x60 [ 51.539167][ T3610] exc_invalid_op+0x14/0x40 [ 51.543681][ T3610] asm_exc_invalid_op+0x1b/0x20 [ 51.548535][ T3610] RIP: 0010:__alloc_pages+0x39e/0x510 [ 51.553912][ T3610] 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 01 68 ea 0b 00 75 09 c6 05 f8 67 ea 0b 01 <0f> 0b 45 31 f6 e9 8d fe ff ff 65 ff 05 81 d4 45 7e 48 c7 c0 80 8e [ 51.573542][ T3610] RSP: 0018:ffffc9000303f8e0 EFLAGS: 00010246 [ 51.579615][ T3610] RAX: 0000000000000000 RBX: 1ffff92000607f1d RCX: 0000000000000000 [ 51.587590][ T3610] RDX: 0000000000000000 RSI: 0000000000000012 RDI: 0000000000000000 [ 51.595560][ T3610] RBP: 0000000000060a20 R08: 0000000000000001 R09: 0000000000000000 [ 51.603535][ T3610] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000012 [ 51.611603][ T3610] R13: 0000000000000000 R14: 0000000000000012 R15: 0000000000000000 [ 51.619615][ T3610] ? __alloc_pages_slowpath.constprop.0+0x2160/0x2160 [ 51.626401][ T3610] ? __napi_alloc_skb+0x70/0x310 [ 51.631354][ T3610] ? rcu_read_lock_sched_held+0x3a/0x70 [ 51.636918][ T3610] kmalloc_large_node+0x62/0x130 [ 51.641866][ T3610] __kmalloc_node_track_caller+0x2ec/0x360 [ 51.647685][ T3610] ? tun_get_user+0x1ef8/0x3b00 [ 51.652545][ T3610] ? __build_skb_around+0x274/0x340 [ 51.657755][ T3610] pskb_expand_head+0xf23/0x1070 [ 51.662699][ T3610] ? __local_bh_enable_ip+0xa0/0x120 [ 51.667996][ T3610] tun_get_user+0x1ef8/0x3b00 [ 51.672696][ T3610] ? tun_build_skb+0x1170/0x1170 [ 51.677649][ T3610] ? lock_downgrade+0x6e0/0x6e0 [ 51.682534][ T3610] tun_chr_write_iter+0xdb/0x200 [ 51.687484][ T3610] new_sync_write+0x38a/0x560 [ 51.692197][ T3610] ? new_sync_read+0x5f0/0x5f0 [ 51.696965][ T3610] ? _raw_spin_lock_irq+0x41/0x50 [ 51.702005][ T3610] ? bpf_lsm_file_permission+0x5/0x10 [ 51.707397][ T3610] ? security_file_permission+0xab/0xd0 [ 51.712957][ T3610] vfs_write+0x7c0/0xac0 [ 51.717211][ T3610] ksys_write+0x127/0x250 [ 51.721549][ T3610] ? __ia32_sys_read+0xb0/0xb0 [ 51.726320][ T3610] ? lockdep_hardirqs_on+0x79/0x100 [ 51.731524][ T3610] ? _raw_spin_unlock_irq+0x2a/0x40 [ 51.736725][ T3610] ? ptrace_notify+0xfa/0x140 [ 51.741411][ T3610] do_syscall_64+0x35/0xb0 [ 51.745833][ T3610] entry_SYSCALL_64_after_hwframe+0x46/0xb0 [ 51.751733][ T3610] RIP: 0033:0x7fa83aa56a79 [ 51.756152][ T3610] 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 [ 51.775777][ T3610] RSP: 002b:00007ffef7bd8a48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 51.784197][ T3610] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007fa83aa56a79 [ 51.792182][ T3610] RDX: 000000002000032a RSI: 0000000020000300 RDI: 0000000000000003 [ 51.800153][ T3610] RBP: 00007ffef7bd8a60 R08: 0000000000000001 R09: 00007ffef7bd8a77 [ 51.808138][ T3610] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 [ 51.816108][ T3610] R13: 00007ffef7bd8a60 R14: 0000000000000003 R15: 0000000000000000 [ 51.824096][ T3610] [ 51.827400][ T3610] Kernel Offset: disabled [ 51.831758][ T3610] Rebooting in 86400 seconds..