Warning: Permanently added '10.128.0.168' (ECDSA) to the list of known hosts. 2023/07/05 04:08:59 fuzzer started 2023/07/05 04:08:59 connecting to host at 10.128.0.169:35689 2023/07/05 04:08:59 checking machine... 2023/07/05 04:08:59 checking revisions... 2023/07/05 04:08:59 testing simple program... syzkaller login: [ 57.805664][ T5002] cgroup: Unknown subsys name 'net' [ 57.936573][ T5002] cgroup: Unknown subsys name 'rlimit' [ 59.280249][ T5002] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 59.293161][ T5002] syz-executor (5002) used greatest stack depth: 22560 bytes left [ 59.293329][ T4993] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=4993 'syz-fuzzer' [ 59.406547][ T5004] ================================================================================ [ 59.416634][ T5004] UBSAN: array-index-out-of-bounds in kernel/pid.c:244:15 [ 59.423852][ T5004] index 1 is out of range for type 'upid [1]' [ 59.430087][ T5004] CPU: 0 PID: 5004 Comm: syz-executor.0 Not tainted 6.4.0-syzkaller-04304-gf7306acec9aa #0 [ 59.440441][ T5004] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 59.451026][ T5004] Call Trace: [ 59.454571][ T5004] [ 59.457503][ T5004] dump_stack_lvl+0x136/0x150 [ 59.463994][ T5004] __ubsan_handle_out_of_bounds+0xd5/0x140 [ 59.469989][ T5004] ? down_read_killable+0x4a1/0x4f0 [ 59.475555][ T5004] alloc_pid+0xbe5/0xdd0 [ 59.480267][ T5004] ? copy_namespaces+0x1e3/0x500 [ 59.485234][ T5004] copy_process+0x4589/0x7620 [ 59.490026][ T5004] ? pidfd_prepare+0x80/0x80 [ 59.494631][ T5004] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 59.500722][ T5004] kernel_clone+0xeb/0x890 [ 59.505419][ T5004] ? create_io_thread+0xe0/0xe0 [ 59.510645][ T5004] ? ksys_unshare+0x676/0x920 [ 59.515425][ T5004] ? lock_downgrade+0x690/0x690 [ 59.520372][ T5004] ? do_raw_spin_lock+0x124/0x2b0 [ 59.525409][ T5004] ? spin_bug+0x1c0/0x1c0 [ 59.529758][ T5004] __do_sys_clone+0xba/0x100 [ 59.534360][ T5004] ? kernel_clone+0x890/0x890 [ 59.539058][ T5004] ? syscall_enter_from_user_mode+0x26/0x80 [ 59.545588][ T5004] do_syscall_64+0x39/0xb0 [ 59.550221][ T5004] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 59.556126][ T5004] RIP: 0033:0x7f24f8889fab [ 59.560630][ T5004] 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 [ 59.580514][ T5004] RSP: 002b:00007ffc5633b5d0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 59.589211][ T5004] RAX: ffffffffffffffda RBX: 00007ffc5633bc28 RCX: 00007f24f8889fab [ 59.597841][ T5004] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 [ 59.605822][ T5004] RBP: 0000000000000000 R08: 0000000000000000 R09: 00005555565b7400 [ 59.613905][ T5004] R10: 00005555565b76d0 R11: 0000000000000246 R12: 0000000000000000 [ 59.622147][ T5004] R13: 00007ffc5633b6c0 R14: 00007f24f89ac9d8 R15: 000000000000000c [ 59.630222][ T5004] [ 59.633418][ T5004] ================================================================================ [ 59.642842][ T5004] Kernel panic - not syncing: UBSAN: panic_on_warn set ... [ 59.650128][ T5004] CPU: 0 PID: 5004 Comm: syz-executor.0 Not tainted 6.4.0-syzkaller-04304-gf7306acec9aa #0 [ 59.660108][ T5004] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 59.670612][ T5004] Call Trace: [ 59.674671][ T5004] [ 59.677690][ T5004] dump_stack_lvl+0xd9/0x150 [ 59.682557][ T5004] panic+0x686/0x730 [ 59.686548][ T5004] ? panic_smp_self_stop+0xa0/0xa0 [ 59.691673][ T5004] ? syslog_print_all+0x3a0/0x3a0 [ 59.696892][ T5004] check_panic_on_warn+0xb1/0xc0 [ 59.702017][ T5004] __ubsan_handle_out_of_bounds+0xfd/0x140 [ 59.707827][ T5004] ? down_read_killable+0x4a1/0x4f0 [ 59.713297][ T5004] alloc_pid+0xbe5/0xdd0 [ 59.717643][ T5004] ? copy_namespaces+0x1e3/0x500 [ 59.722939][ T5004] copy_process+0x4589/0x7620 [ 59.727699][ T5004] ? pidfd_prepare+0x80/0x80 [ 59.732385][ T5004] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 59.738399][ T5004] kernel_clone+0xeb/0x890 [ 59.742824][ T5004] ? create_io_thread+0xe0/0xe0 [ 59.748120][ T5004] ? ksys_unshare+0x676/0x920 [ 59.752810][ T5004] ? lock_downgrade+0x690/0x690 [ 59.758281][ T5004] ? do_raw_spin_lock+0x124/0x2b0 [ 59.764024][ T5004] ? spin_bug+0x1c0/0x1c0 [ 59.768413][ T5004] __do_sys_clone+0xba/0x100 [ 59.773221][ T5004] ? kernel_clone+0x890/0x890 [ 59.777990][ T5004] ? syscall_enter_from_user_mode+0x26/0x80 [ 59.783983][ T5004] do_syscall_64+0x39/0xb0 [ 59.788498][ T5004] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 59.794519][ T5004] RIP: 0033:0x7f24f8889fab [ 59.799142][ T5004] 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 [ 59.819322][ T5004] RSP: 002b:00007ffc5633b5d0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 59.827842][ T5004] RAX: ffffffffffffffda RBX: 00007ffc5633bc28 RCX: 00007f24f8889fab [ 59.836174][ T5004] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 [ 59.844247][ T5004] RBP: 0000000000000000 R08: 0000000000000000 R09: 00005555565b7400 [ 59.854141][ T5004] R10: 00005555565b76d0 R11: 0000000000000246 R12: 0000000000000000 [ 59.862550][ T5004] R13: 00007ffc5633b6c0 R14: 00007f24f89ac9d8 R15: 000000000000000c [ 59.870941][ T5004] [ 59.874498][ T5004] Kernel Offset: disabled [ 59.879081][ T5004] Rebooting in 86400 seconds..