Warning: Permanently added '10.128.0.126' (ECDSA) to the list of known hosts. 2023/05/17 08:11:11 fuzzer started 2023/05/17 08:11:11 connecting to host at 10.128.0.169:37507 2023/05/17 08:11:11 checking machine... 2023/05/17 08:11:11 checking revisions... 2023/05/17 08:11:11 testing simple program... syzkaller login: [ 55.455054][ T5001] cgroup: Unknown subsys name 'net' [ 55.624702][ T5001] cgroup: Unknown subsys name 'rlimit' [ 55.729917][ T4995] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=4995 'syz-fuzzer' [ 55.834262][ T5002] ================================================================================ [ 55.844131][ T5002] UBSAN: array-index-out-of-bounds in kernel/pid.c:244:15 [ 55.851326][ T5002] index 1 is out of range for type 'upid [1]' [ 55.857879][ T5002] CPU: 0 PID: 5002 Comm: syz-executor.0 Not tainted 6.4.0-rc2-next-20230517-syzkaller #0 [ 55.867899][ T5002] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023 [ 55.877961][ T5002] Call Trace: [ 55.881282][ T5002] [ 55.884320][ T5002] dump_stack_lvl+0x136/0x150 [ 55.889015][ T5002] __ubsan_handle_out_of_bounds+0xd5/0x140 [ 55.894839][ T5002] ? rwsem_down_read_slowpath+0x421/0xae0 [ 55.900592][ T5002] alloc_pid+0xbe5/0xdd0 [ 55.904908][ T5002] ? copy_namespaces+0x1e3/0x500 [ 55.909896][ T5002] copy_process+0x45da/0x7660 [ 55.914610][ T5002] ? pidfd_prepare+0x80/0x80 [ 55.919323][ T5002] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 55.925927][ T5002] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 55.932261][ T5002] kernel_clone+0xeb/0x890 [ 55.936991][ T5002] ? create_io_thread+0xe0/0xe0 [ 55.941873][ T5002] ? ksys_unshare+0x676/0x920 [ 55.946572][ T5002] ? lock_downgrade+0x690/0x690 [ 55.951447][ T5002] ? do_raw_spin_lock+0x124/0x2b0 [ 55.956601][ T5002] ? spin_bug+0x1c0/0x1c0 [ 55.960978][ T5002] __do_sys_clone+0xba/0x100 [ 55.965582][ T5002] ? kernel_clone+0x890/0x890 [ 55.970374][ T5002] ? syscall_enter_from_user_mode+0x26/0x80 [ 55.976383][ T5002] do_syscall_64+0x39/0xb0 [ 55.980814][ T5002] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 55.986722][ T5002] RIP: 0033:0x7fb9c8e89e9b [ 55.991315][ T5002] 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 [ 56.011222][ T5002] RSP: 002b:00007ffc6bc4eff0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 56.019802][ T5002] RAX: ffffffffffffffda RBX: 00007ffc6bc4f648 RCX: 00007fb9c8e89e9b [ 56.027811][ T5002] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 [ 56.036590][ T5002] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000555556875400 [ 56.045101][ T5002] R10: 00005555568756d0 R11: 0000000000000246 R12: 0000000000000000 [ 56.053177][ T5002] R13: 00007ffc6bc4f0e0 R14: 00007fb9c8fac9d8 R15: 000000000000000c [ 56.061521][ T5002] [ 56.065350][ T5002] ================================================================================ [ 56.074818][ T5002] Kernel panic - not syncing: UBSAN: panic_on_warn set ... [ 56.082921][ T5002] CPU: 1 PID: 5002 Comm: syz-executor.0 Not tainted 6.4.0-rc2-next-20230517-syzkaller #0 [ 56.093017][ T5002] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023 [ 56.103337][ T5002] Call Trace: [ 56.106628][ T5002] [ 56.109563][ T5002] dump_stack_lvl+0xd9/0x150 [ 56.114317][ T5002] panic+0x686/0x730 [ 56.118505][ T5002] ? panic_smp_self_stop+0xa0/0xa0 [ 56.123815][ T5002] ? syslog_print_all+0x3a0/0x3a0 [ 56.128885][ T5002] check_panic_on_warn+0xb1/0xc0 [ 56.134111][ T5002] __ubsan_handle_out_of_bounds+0xfd/0x140 [ 56.140122][ T5002] ? rwsem_down_read_slowpath+0x421/0xae0 [ 56.145964][ T5002] alloc_pid+0xbe5/0xdd0 [ 56.150363][ T5002] ? copy_namespaces+0x1e3/0x500 [ 56.155425][ T5002] copy_process+0x45da/0x7660 [ 56.160111][ T5002] ? pidfd_prepare+0x80/0x80 [ 56.164957][ T5002] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 56.171045][ T5002] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 56.177230][ T5002] kernel_clone+0xeb/0x890 [ 56.181888][ T5002] ? create_io_thread+0xe0/0xe0 [ 56.186781][ T5002] ? ksys_unshare+0x676/0x920 [ 56.191539][ T5002] ? lock_downgrade+0x690/0x690 [ 56.196505][ T5002] ? do_raw_spin_lock+0x124/0x2b0 [ 56.201726][ T5002] ? spin_bug+0x1c0/0x1c0 [ 56.206075][ T5002] __do_sys_clone+0xba/0x100 [ 56.210764][ T5002] ? kernel_clone+0x890/0x890 [ 56.215461][ T5002] ? syscall_enter_from_user_mode+0x26/0x80 [ 56.221461][ T5002] do_syscall_64+0x39/0xb0 [ 56.225890][ T5002] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 56.231886][ T5002] RIP: 0033:0x7fb9c8e89e9b [ 56.236508][ T5002] 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 [ 56.256487][ T5002] RSP: 002b:00007ffc6bc4eff0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 56.265040][ T5002] RAX: ffffffffffffffda RBX: 00007ffc6bc4f648 RCX: 00007fb9c8e89e9b [ 56.273056][ T5002] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 [ 56.281039][ T5002] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000555556875400 [ 56.289011][ T5002] R10: 00005555568756d0 R11: 0000000000000246 R12: 0000000000000000 [ 56.297246][ T5002] R13: 00007ffc6bc4f0e0 R14: 00007fb9c8fac9d8 R15: 000000000000000c [ 56.305253][ T5002] [ 56.308444][ T5002] Kernel Offset: disabled [ 56.312878][ T5002] Rebooting in 86400 seconds..