DUID 00:04:1e:62:2e:d3:28:4c:47:2c:f6:06:4a:96:1e:52:1a:b0 forked to background, child pid 4672 [ 36.071006][ T4673] 8021q: adding VLAN 0 to HW filter on device bond0 [ 36.082004][ T4673] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.178' (ECDSA) to the list of known hosts. 2023/07/07 22:45:11 fuzzer started 2023/07/07 22:45:12 connecting to host at 10.128.0.169:41201 2023/07/07 22:45:12 checking machine... 2023/07/07 22:45:12 checking revisions... 2023/07/07 22:45:12 testing simple program... syzkaller login: [ 57.359834][ T5003] cgroup: Unknown subsys name 'net' [ 57.506156][ T5003] cgroup: Unknown subsys name 'rlimit' [ 58.834662][ T5003] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 58.847101][ T4997] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=4997 'syz-fuzzer' [ 58.955279][ T5005] ================================================================================ [ 58.965218][ T5005] UBSAN: array-index-out-of-bounds in kernel/pid.c:244:15 [ 58.972899][ T5005] index 1 is out of range for type 'upid [1]' [ 58.978976][ T5005] CPU: 1 PID: 5005 Comm: syz-executor.0 Not tainted 6.4.0-syzkaller-04273-g856fe03d9292 #0 [ 58.989398][ T5005] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 58.999654][ T5005] Call Trace: [ 59.003023][ T5005] [ 59.006135][ T5005] dump_stack_lvl+0x136/0x150 [ 59.010935][ T5005] __ubsan_handle_out_of_bounds+0xd5/0x140 [ 59.016747][ T5005] ? try_to_take_rt_mutex+0x431/0xb70 [ 59.022137][ T5005] alloc_pid+0xbe5/0xdd0 [ 59.026483][ T5005] ? copy_namespaces+0x1e3/0x500 [ 59.031434][ T5005] copy_process+0x4589/0x7620 [ 59.036154][ T5005] ? pidfd_prepare+0x80/0x80 [ 59.040865][ T5005] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 59.046964][ T5005] kernel_clone+0xeb/0x890 [ 59.051490][ T5005] ? create_io_thread+0xe0/0xe0 [ 59.056441][ T5005] ? ksys_unshare+0x676/0x920 [ 59.061397][ T5005] ? lock_downgrade+0x690/0x690 [ 59.066431][ T5005] ? do_raw_spin_lock+0x124/0x2b0 [ 59.071553][ T5005] ? spin_bug+0x1c0/0x1c0 [ 59.075898][ T5005] __do_sys_clone+0xba/0x100 [ 59.080497][ T5005] ? kernel_clone+0x890/0x890 [ 59.085194][ T5005] ? syscall_enter_from_user_mode+0x26/0x80 [ 59.091198][ T5005] do_syscall_64+0x39/0xb0 [ 59.095623][ T5005] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 59.101622][ T5005] RIP: 0033:0x7f3d4b089fab [ 59.106183][ T5005] Code: ed 0f 85 60 01 00 00 64 4c 8b 0c 25 10 00 00 00 45 31 c0 4d 8d 91 d0 02 00 00 31 d2 31 f6 bf 11 00 20 01 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 89 00 00 00 41 89 c5 85 c0 0f 85 90 00 00 [ 59.126315][ T5005] RSP: 002b:00007ffd0fb41180 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 59.134909][ T5005] RAX: ffffffffffffffda RBX: 00007ffd0fb417d8 RCX: 00007f3d4b089fab [ 59.143080][ T5005] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 [ 59.151140][ T5005] RBP: 0000000000000000 R08: 0000000000000000 R09: 000055555652b400 [ 59.159473][ T5005] R10: 000055555652b6d0 R11: 0000000000000246 R12: 0000000000000000 [ 59.167904][ T5005] R13: 00007ffd0fb41270 R14: 00007f3d4b1ac9d8 R15: 000000000000000c [ 59.176360][ T5005] [ 59.179694][ T5005] ================================================================================ [ 59.189695][ T5005] Kernel panic - not syncing: UBSAN: panic_on_warn set ... [ 59.196996][ T5005] CPU: 0 PID: 5005 Comm: syz-executor.0 Not tainted 6.4.0-syzkaller-04273-g856fe03d9292 #0 [ 59.207153][ T5005] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 59.217988][ T5005] Call Trace: [ 59.221350][ T5005] [ 59.224361][ T5005] dump_stack_lvl+0xd9/0x150 [ 59.229211][ T5005] panic+0x686/0x730 [ 59.233198][ T5005] ? panic_smp_self_stop+0xa0/0xa0 [ 59.238308][ T5005] ? syslog_print_all+0x3a0/0x3a0 [ 59.243335][ T5005] check_panic_on_warn+0xb1/0xc0 [ 59.248269][ T5005] __ubsan_handle_out_of_bounds+0xfd/0x140 [ 59.254088][ T5005] ? try_to_take_rt_mutex+0x431/0xb70 [ 59.259453][ T5005] alloc_pid+0xbe5/0xdd0 [ 59.263711][ T5005] ? copy_namespaces+0x1e3/0x500 [ 59.268641][ T5005] copy_process+0x4589/0x7620 [ 59.273403][ T5005] ? pidfd_prepare+0x80/0x80 [ 59.277984][ T5005] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 59.283990][ T5005] kernel_clone+0xeb/0x890 [ 59.288398][ T5005] ? create_io_thread+0xe0/0xe0 [ 59.293250][ T5005] ? ksys_unshare+0x676/0x920 [ 59.298096][ T5005] ? lock_downgrade+0x690/0x690 [ 59.303254][ T5005] ? do_raw_spin_lock+0x124/0x2b0 [ 59.308740][ T5005] ? spin_bug+0x1c0/0x1c0 [ 59.313085][ T5005] __do_sys_clone+0xba/0x100 [ 59.317948][ T5005] ? kernel_clone+0x890/0x890 [ 59.322748][ T5005] ? syscall_enter_from_user_mode+0x26/0x80 [ 59.328827][ T5005] do_syscall_64+0x39/0xb0 [ 59.333290][ T5005] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 59.339391][ T5005] RIP: 0033:0x7f3d4b089fab [ 59.343990][ T5005] Code: ed 0f 85 60 01 00 00 64 4c 8b 0c 25 10 00 00 00 45 31 c0 4d 8d 91 d0 02 00 00 31 d2 31 f6 bf 11 00 20 01 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 89 00 00 00 41 89 c5 85 c0 0f 85 90 00 00 [ 59.364315][ T5005] RSP: 002b:00007ffd0fb41180 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 59.372831][ T5005] RAX: ffffffffffffffda RBX: 00007ffd0fb417d8 RCX: 00007f3d4b089fab [ 59.381081][ T5005] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 [ 59.389055][ T5005] RBP: 0000000000000000 R08: 0000000000000000 R09: 000055555652b400 [ 59.397204][ T5005] R10: 000055555652b6d0 R11: 0000000000000246 R12: 0000000000000000 [ 59.405277][ T5005] R13: 00007ffd0fb41270 R14: 00007f3d4b1ac9d8 R15: 000000000000000c [ 59.413719][ T5005] [ 59.417198][ T5005] Kernel Offset: disabled [ 59.422026][ T5005] Rebooting in 86400 seconds..