DUID 00:04:2e:b3:b6:17:38:f5:ab:01:59:0b:43:16:c0:36:06:e7 forked to background, child pid 4669 [ 36.603023][ T4670] 8021q: adding VLAN 0 to HW filter on device bond0 [ 36.620281][ T4670] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.15.212' (ECDSA) to the list of known hosts. 2023/07/03 08:57:35 fuzzer started 2023/07/03 08:57:35 connecting to host at 10.128.0.169:41319 2023/07/03 08:57:35 checking machine... 2023/07/03 08:57:35 checking revisions... 2023/07/03 08:57:35 testing simple program... syzkaller login: [ 59.264637][ T5001] cgroup: Unknown subsys name 'net' [ 59.430829][ T5001] cgroup: Unknown subsys name 'rlimit' [ 60.724785][ T5001] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 60.737684][ T4999] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=4999 'syz-fuzzer' [ 60.846900][ T5003] ================================================================================ [ 60.856532][ T5003] UBSAN: array-index-out-of-bounds in kernel/pid.c:244:15 [ 60.863890][ T5003] index 1 is out of range for type 'upid [1]' [ 60.870008][ T5003] CPU: 0 PID: 5003 Comm: syz-executor.0 Not tainted 6.4.0-syzkaller-04300-gc94683ed35ec #0 [ 60.880269][ T5003] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 60.890679][ T5003] Call Trace: [ 60.894227][ T5003] [ 60.897257][ T5003] dump_stack_lvl+0x136/0x150 [ 60.902060][ T5003] __ubsan_handle_out_of_bounds+0xd5/0x140 [ 60.908248][ T5003] ? down_read_killable+0x4a1/0x4f0 [ 60.913910][ T5003] alloc_pid+0xbe5/0xdd0 [ 60.918253][ T5003] ? copy_namespaces+0x1e3/0x500 [ 60.923289][ T5003] copy_process+0x4589/0x7620 [ 60.927968][ T5003] ? pidfd_prepare+0x80/0x80 [ 60.932573][ T5003] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 60.938731][ T5003] kernel_clone+0xeb/0x890 [ 60.943141][ T5003] ? create_io_thread+0xe0/0xe0 [ 60.947992][ T5003] ? ksys_unshare+0x676/0x920 [ 60.952745][ T5003] ? lock_downgrade+0x690/0x690 [ 60.957590][ T5003] ? do_raw_spin_lock+0x124/0x2b0 [ 60.962614][ T5003] ? spin_bug+0x1c0/0x1c0 [ 60.967119][ T5003] __do_sys_clone+0xba/0x100 [ 60.971720][ T5003] ? kernel_clone+0x890/0x890 [ 60.976417][ T5003] ? syscall_enter_from_user_mode+0x26/0x80 [ 60.982407][ T5003] do_syscall_64+0x39/0xb0 [ 60.986836][ T5003] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 60.992742][ T5003] RIP: 0033:0x7fc1e2289fab [ 60.997247][ T5003] 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 [ 61.017131][ T5003] RSP: 002b:00007fff86ef0d00 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 61.025996][ T5003] RAX: ffffffffffffffda RBX: 00007fff86ef1358 RCX: 00007fc1e2289fab [ 61.033972][ T5003] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 [ 61.042215][ T5003] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000555556062400 [ 61.050289][ T5003] R10: 00005555560626d0 R11: 0000000000000246 R12: 0000000000000000 [ 61.058266][ T5003] R13: 00007fff86ef0df0 R14: 00007fc1e23ac9d8 R15: 000000000000000c [ 61.066705][ T5003] [ 61.069866][ T5003] ================================================================================ [ 61.079381][ T5003] Kernel panic - not syncing: UBSAN: panic_on_warn set ... [ 61.086941][ T5003] CPU: 0 PID: 5003 Comm: syz-executor.0 Not tainted 6.4.0-syzkaller-04300-gc94683ed35ec #0 [ 61.097106][ T5003] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 61.107505][ T5003] Call Trace: [ 61.110798][ T5003] [ 61.113840][ T5003] dump_stack_lvl+0xd9/0x150 [ 61.118555][ T5003] panic+0x686/0x730 [ 61.122562][ T5003] ? panic_smp_self_stop+0xa0/0xa0 [ 61.127714][ T5003] ? syslog_print_all+0x3a0/0x3a0 [ 61.132932][ T5003] check_panic_on_warn+0xb1/0xc0 [ 61.138062][ T5003] __ubsan_handle_out_of_bounds+0xfd/0x140 [ 61.144076][ T5003] ? down_read_killable+0x4a1/0x4f0 [ 61.149295][ T5003] alloc_pid+0xbe5/0xdd0 [ 61.153637][ T5003] ? copy_namespaces+0x1e3/0x500 [ 61.158762][ T5003] copy_process+0x4589/0x7620 [ 61.163547][ T5003] ? pidfd_prepare+0x80/0x80 [ 61.168154][ T5003] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 61.174684][ T5003] kernel_clone+0xeb/0x890 [ 61.179198][ T5003] ? create_io_thread+0xe0/0xe0 [ 61.184148][ T5003] ? ksys_unshare+0x676/0x920 [ 61.189235][ T5003] ? lock_downgrade+0x690/0x690 [ 61.194118][ T5003] ? do_raw_spin_lock+0x124/0x2b0 [ 61.199162][ T5003] ? spin_bug+0x1c0/0x1c0 [ 61.203783][ T5003] __do_sys_clone+0xba/0x100 [ 61.208501][ T5003] ? kernel_clone+0x890/0x890 [ 61.213194][ T5003] ? syscall_enter_from_user_mode+0x26/0x80 [ 61.219449][ T5003] do_syscall_64+0x39/0xb0 [ 61.223893][ T5003] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 61.230241][ T5003] RIP: 0033:0x7fc1e2289fab [ 61.234748][ T5003] 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 [ 61.255163][ T5003] RSP: 002b:00007fff86ef0d00 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 61.263669][ T5003] RAX: ffffffffffffffda RBX: 00007fff86ef1358 RCX: 00007fc1e2289fab [ 61.271796][ T5003] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 [ 61.280207][ T5003] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000555556062400 [ 61.288537][ T5003] R10: 00005555560626d0 R11: 0000000000000246 R12: 0000000000000000 [ 61.296955][ T5003] R13: 00007fff86ef0df0 R14: 00007fc1e23ac9d8 R15: 000000000000000c [ 61.305381][ T5003] [ 61.308913][ T5003] Kernel Offset: disabled [ 61.313570][ T5003] Rebooting in 86400 seconds..