DUID 00:04:2e:b3:b6:17:38:f5:ab:01:59:0b:43:16:c0:36:06:e7 forked to background, child pid 4676 [ 38.154521][ T4677] 8021q: adding VLAN 0 to HW filter on device bond0 [ 38.166516][ T4677] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.10.2' (ECDSA) to the list of known hosts. 2023/06/29 17:19:47 fuzzer started 2023/06/29 17:19:47 connecting to host at 10.128.0.169:35751 2023/06/29 17:19:47 checking machine... 2023/06/29 17:19:47 checking revisions... 2023/06/29 17:19:48 testing simple program... syzkaller login: [ 56.192451][ T5007] cgroup: Unknown subsys name 'net' [ 56.329223][ T5007] cgroup: Unknown subsys name 'rlimit' [ 57.627340][ T5007] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 57.640803][ T5005] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=5005 'syz-fuzzer' [ 57.747978][ T5009] ================================================================================ [ 57.757928][ T5009] UBSAN: array-index-out-of-bounds in kernel/pid.c:244:15 [ 57.765330][ T5009] index 1 is out of range for type 'upid [1]' [ 57.772250][ T5009] CPU: 0 PID: 5009 Comm: syz-executor.0 Not tainted 6.4.0-syzkaller-04261-g046f753da614 #0 [ 57.782398][ T5009] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 57.792556][ T5009] Call Trace: [ 57.795835][ T5009] [ 57.798760][ T5009] dump_stack_lvl+0x136/0x150 [ 57.803455][ T5009] __ubsan_handle_out_of_bounds+0xd5/0x140 [ 57.809251][ T5009] ? __rt_mutex_futex_unlock+0x81/0x1f0 [ 57.814879][ T5009] alloc_pid+0xbe5/0xdd0 [ 57.819112][ T5009] ? copy_namespaces+0x1e3/0x500 [ 57.824223][ T5009] copy_process+0x4589/0x7620 [ 57.828983][ T5009] ? pidfd_prepare+0x80/0x80 [ 57.833565][ T5009] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 57.839559][ T5009] kernel_clone+0xeb/0x890 [ 57.844664][ T5009] ? create_io_thread+0xe0/0xe0 [ 57.849795][ T5009] ? ksys_unshare+0x676/0x920 [ 57.854848][ T5009] ? lock_downgrade+0x690/0x690 [ 57.859999][ T5009] ? do_raw_spin_lock+0x124/0x2b0 [ 57.865909][ T5009] ? spin_bug+0x1c0/0x1c0 [ 57.870277][ T5009] __do_sys_clone+0xba/0x100 [ 57.874894][ T5009] ? kernel_clone+0x890/0x890 [ 57.879598][ T5009] ? syscall_enter_from_user_mode+0x26/0x80 [ 57.885721][ T5009] do_syscall_64+0x39/0xb0 [ 57.890198][ T5009] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 57.896359][ T5009] RIP: 0033:0x7f3e54089fab [ 57.901113][ T5009] 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 [ 57.921271][ T5009] RSP: 002b:00007ffc435b5780 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 57.929860][ T5009] RAX: ffffffffffffffda RBX: 00007ffc435b5dd8 RCX: 00007f3e54089fab [ 57.938195][ T5009] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 [ 57.946270][ T5009] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000555556554400 [ 57.954331][ T5009] R10: 00005555565546d0 R11: 0000000000000246 R12: 0000000000000000 [ 57.962338][ T5009] R13: 00007ffc435b5870 R14: 00007f3e541ac9d8 R15: 000000000000000c [ 57.970499][ T5009] [ 57.974197][ T5009] ================================================================================ [ 57.983733][ T5009] Kernel panic - not syncing: UBSAN: panic_on_warn set ... [ 57.991101][ T5009] CPU: 0 PID: 5009 Comm: syz-executor.0 Not tainted 6.4.0-syzkaller-04261-g046f753da614 #0 [ 58.001072][ T5009] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 58.011287][ T5009] Call Trace: [ 58.014729][ T5009] [ 58.017655][ T5009] dump_stack_lvl+0xd9/0x150 [ 58.022242][ T5009] panic+0x686/0x730 [ 58.026218][ T5009] ? panic_smp_self_stop+0xa0/0xa0 [ 58.031326][ T5009] ? syslog_print_all+0x3a0/0x3a0 [ 58.036440][ T5009] check_panic_on_warn+0xb1/0xc0 [ 58.041369][ T5009] __ubsan_handle_out_of_bounds+0xfd/0x140 [ 58.047198][ T5009] ? __rt_mutex_futex_unlock+0x81/0x1f0 [ 58.052760][ T5009] alloc_pid+0xbe5/0xdd0 [ 58.056995][ T5009] ? copy_namespaces+0x1e3/0x500 [ 58.061986][ T5009] copy_process+0x4589/0x7620 [ 58.066751][ T5009] ? pidfd_prepare+0x80/0x80 [ 58.071332][ T5009] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 58.077325][ T5009] kernel_clone+0xeb/0x890 [ 58.081926][ T5009] ? create_io_thread+0xe0/0xe0 [ 58.087063][ T5009] ? ksys_unshare+0x676/0x920 [ 58.091947][ T5009] ? lock_downgrade+0x690/0x690 [ 58.096999][ T5009] ? do_raw_spin_lock+0x124/0x2b0 [ 58.102124][ T5009] ? spin_bug+0x1c0/0x1c0 [ 58.106467][ T5009] __do_sys_clone+0xba/0x100 [ 58.111311][ T5009] ? kernel_clone+0x890/0x890 [ 58.115991][ T5009] ? syscall_enter_from_user_mode+0x26/0x80 [ 58.122045][ T5009] do_syscall_64+0x39/0xb0 [ 58.126454][ T5009] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 58.132338][ T5009] RIP: 0033:0x7f3e54089fab [ 58.136924][ T5009] 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 [ 58.157134][ T5009] RSP: 002b:00007ffc435b5780 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 58.165805][ T5009] RAX: ffffffffffffffda RBX: 00007ffc435b5dd8 RCX: 00007f3e54089fab [ 58.174285][ T5009] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 [ 58.182245][ T5009] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000555556554400 [ 58.190374][ T5009] R10: 00005555565546d0 R11: 0000000000000246 R12: 0000000000000000 [ 58.198358][ T5009] R13: 00007ffc435b5870 R14: 00007f3e541ac9d8 R15: 000000000000000c [ 58.206434][ T5009] [ 58.209779][ T5009] Kernel Offset: disabled [ 58.214170][ T5009] Rebooting in 86400 seconds..