DUID 00:04:63:3c:db:c8:83:d4:2a:b1:e5:3f:fc:31:79:55:3b:bc forked to background, child pid 4669 [ 32.314663][ T4670] 8021q: adding VLAN 0 to HW filter on device bond0 [ 32.330428][ T4670] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.80' (ECDSA) to the list of known hosts. 2023/05/18 00:19:06 fuzzer started 2023/05/18 00:19:06 connecting to host at 10.128.0.169:33557 2023/05/18 00:19:06 checking machine... 2023/05/18 00:19:06 checking revisions... 2023/05/18 00:19:06 testing simple program... syzkaller login: [ 51.707709][ T5001] cgroup: Unknown subsys name 'net' [ 51.878103][ T5001] cgroup: Unknown subsys name 'rlimit' [ 52.003722][ T4995] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=4995 'syz-fuzzer' [ 52.098003][ T5002] ================================================================================ [ 52.107670][ T5002] UBSAN: array-index-out-of-bounds in kernel/pid.c:244:15 [ 52.114794][ T5002] index 1 is out of range for type 'upid [1]' [ 52.121125][ T5002] CPU: 0 PID: 5002 Comm: syz-executor.0 Not tainted 6.4.0-rc2-next-20230517-syzkaller #0 [ 52.131152][ T5002] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023 [ 52.142022][ T5002] Call Trace: [ 52.145383][ T5002] [ 52.148319][ T5002] dump_stack_lvl+0x136/0x150 [ 52.153218][ T5002] __ubsan_handle_out_of_bounds+0xd5/0x140 [ 52.159212][ T5002] ? rwsem_down_read_slowpath+0x421/0xae0 [ 52.165923][ T5002] alloc_pid+0xbe5/0xdd0 [ 52.170226][ T5002] ? copy_namespaces+0x1e3/0x500 [ 52.175839][ T5002] copy_process+0x45da/0x7660 [ 52.180558][ T5002] ? pidfd_prepare+0x80/0x80 [ 52.185615][ T5002] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 52.192089][ T5002] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 52.198469][ T5002] kernel_clone+0xeb/0x890 [ 52.202896][ T5002] ? create_io_thread+0xe0/0xe0 [ 52.208194][ T5002] ? ksys_unshare+0x676/0x920 [ 52.212970][ T5002] ? lock_downgrade+0x690/0x690 [ 52.217919][ T5002] ? do_raw_spin_lock+0x124/0x2b0 [ 52.222965][ T5002] ? spin_bug+0x1c0/0x1c0 [ 52.227348][ T5002] __do_sys_clone+0xba/0x100 [ 52.232144][ T5002] ? kernel_clone+0x890/0x890 [ 52.237103][ T5002] ? syscall_enter_from_user_mode+0x26/0x80 [ 52.243182][ T5002] do_syscall_64+0x39/0xb0 [ 52.247652][ T5002] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 52.253676][ T5002] RIP: 0033:0x7fc91c689e9b [ 52.258102][ 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 [ 52.277706][ T5002] RSP: 002b:00007ffee7cf2850 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 52.286217][ T5002] RAX: ffffffffffffffda RBX: 00007ffee7cf2ea8 RCX: 00007fc91c689e9b [ 52.294473][ T5002] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 [ 52.302725][ T5002] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000555556433400 [ 52.311266][ T5002] R10: 00005555564336d0 R11: 0000000000000246 R12: 0000000000000000 [ 52.319238][ T5002] R13: 00007ffee7cf2940 R14: 00007fc91c7ac9d8 R15: 000000000000000c [ 52.327869][ T5002] [ 52.331380][ T5002] ================================================================================ [ 52.340837][ T5002] Kernel panic - not syncing: UBSAN: panic_on_warn set ... [ 52.348109][ T5002] CPU: 0 PID: 5002 Comm: syz-executor.0 Not tainted 6.4.0-rc2-next-20230517-syzkaller #0 [ 52.358172][ T5002] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023 [ 52.368479][ T5002] Call Trace: [ 52.371840][ T5002] [ 52.374772][ T5002] dump_stack_lvl+0xd9/0x150 [ 52.379564][ T5002] panic+0x686/0x730 [ 52.383561][ T5002] ? panic_smp_self_stop+0xa0/0xa0 [ 52.388822][ T5002] ? syslog_print_all+0x3a0/0x3a0 [ 52.394320][ T5002] check_panic_on_warn+0xb1/0xc0 [ 52.399612][ T5002] __ubsan_handle_out_of_bounds+0xfd/0x140 [ 52.405601][ T5002] ? rwsem_down_read_slowpath+0x421/0xae0 [ 52.411450][ T5002] alloc_pid+0xbe5/0xdd0 [ 52.415816][ T5002] ? copy_namespaces+0x1e3/0x500 [ 52.420817][ T5002] copy_process+0x45da/0x7660 [ 52.425508][ T5002] ? pidfd_prepare+0x80/0x80 [ 52.430280][ T5002] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 52.436255][ T5002] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 52.442237][ T5002] kernel_clone+0xeb/0x890 [ 52.446679][ T5002] ? create_io_thread+0xe0/0xe0 [ 52.451932][ T5002] ? ksys_unshare+0x676/0x920 [ 52.456805][ T5002] ? lock_downgrade+0x690/0x690 [ 52.461862][ T5002] ? do_raw_spin_lock+0x124/0x2b0 [ 52.467118][ T5002] ? spin_bug+0x1c0/0x1c0 [ 52.471457][ T5002] __do_sys_clone+0xba/0x100 [ 52.476220][ T5002] ? kernel_clone+0x890/0x890 [ 52.480923][ T5002] ? syscall_enter_from_user_mode+0x26/0x80 [ 52.487014][ T5002] do_syscall_64+0x39/0xb0 [ 52.491435][ T5002] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 52.497436][ T5002] RIP: 0033:0x7fc91c689e9b [ 52.502313][ 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 [ 52.522358][ T5002] RSP: 002b:00007ffee7cf2850 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 52.530813][ T5002] RAX: ffffffffffffffda RBX: 00007ffee7cf2ea8 RCX: 00007fc91c689e9b [ 52.539635][ T5002] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 [ 52.547683][ T5002] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000555556433400 [ 52.555782][ T5002] R10: 00005555564336d0 R11: 0000000000000246 R12: 0000000000000000 [ 52.563845][ T5002] R13: 00007ffee7cf2940 R14: 00007fc91c7ac9d8 R15: 000000000000000c [ 52.571991][ T5002] [ 52.575262][ T5002] Kernel Offset: disabled [ 52.579724][ T5002] Rebooting in 86400 seconds..