DUID 00:04:44:5a:cc:c9:49:7a:03:7b:0e:36:9f:1a:c7:8d:92:7d forked to background, child pid 4675 [ 37.461455][ T4676] 8021q: adding VLAN 0 to HW filter on device bond0 [ 37.471534][ T4676] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.200' (ECDSA) to the list of known hosts. 2023/06/29 21:27:32 fuzzer started 2023/06/29 21:27:32 connecting to host at 10.128.0.169:39523 2023/06/29 21:27:32 checking machine... 2023/06/29 21:27:32 checking revisions... 2023/06/29 21:27:32 testing simple program... syzkaller login: [ 58.437624][ T5006] cgroup: Unknown subsys name 'net' [ 58.544545][ T5006] cgroup: Unknown subsys name 'rlimit' [ 59.861649][ T5006] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 59.874357][ T4999] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=4999 'syz-fuzzer' [ 59.979795][ T5009] ================================================================================ [ 59.989197][ T5009] UBSAN: array-index-out-of-bounds in kernel/pid.c:244:15 [ 59.996413][ T5009] index 1 is out of range for type 'upid [1]' [ 60.003193][ T5009] CPU: 0 PID: 5009 Comm: syz-executor.0 Not tainted 6.4.0-syzkaller-04247-g3a8a670eeeaa #0 [ 60.013294][ T5009] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 60.023785][ T5009] Call Trace: [ 60.027231][ T5009] <TASK> [ 60.030253][ T5009] dump_stack_lvl+0x136/0x150 [ 60.035072][ T5009] __ubsan_handle_out_of_bounds+0xd5/0x140 [ 60.040901][ T5009] ? schedule_timeout+0x241/0x2b0 [ 60.046112][ T5009] alloc_pid+0xbe5/0xdd0 [ 60.050750][ T5009] ? copy_namespaces+0x1e3/0x500 [ 60.055884][ T5009] copy_process+0x4589/0x7620 [ 60.060667][ T5009] ? pidfd_prepare+0x80/0x80 [ 60.066136][ T5009] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 60.072215][ T5009] kernel_clone+0xeb/0x890 [ 60.076718][ T5009] ? create_io_thread+0xe0/0xe0 [ 60.081844][ T5009] ? ksys_unshare+0x676/0x920 [ 60.086833][ T5009] ? lock_downgrade+0x690/0x690 [ 60.091823][ T5009] ? do_raw_spin_lock+0x124/0x2b0 [ 60.097044][ T5009] ? spin_bug+0x1c0/0x1c0 [ 60.101759][ T5009] __do_sys_clone+0xba/0x100 [ 60.106524][ T5009] ? kernel_clone+0x890/0x890 [ 60.111514][ T5009] ? syscall_enter_from_user_mode+0x26/0x80 [ 60.117703][ T5009] do_syscall_64+0x39/0xb0 [ 60.122407][ T5009] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 60.128401][ T5009] RIP: 0033:0x7f76eac89fab [ 60.132821][ 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 [ 60.153252][ T5009] RSP: 002b:00007ffda2fc0210 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 60.162031][ T5009] RAX: ffffffffffffffda RBX: 00007ffda2fc0868 RCX: 00007f76eac89fab [ 60.170201][ T5009] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 [ 60.178460][ T5009] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000555556b52400 [ 60.186452][ T5009] R10: 0000555556b526d0 R11: 0000000000000246 R12: 0000000000000000 [ 60.194608][ T5009] R13: 00007ffda2fc0300 R14: 00007f76eadac9d8 R15: 000000000000000c [ 60.202612][ T5009] </TASK> [ 60.206104][ T5009] ================================================================================ [ 60.215771][ T5009] Kernel panic - not syncing: UBSAN: panic_on_warn set ... [ 60.223071][ T5009] CPU: 0 PID: 5009 Comm: syz-executor.0 Not tainted 6.4.0-syzkaller-04247-g3a8a670eeeaa #0 [ 60.233047][ T5009] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 60.243194][ T5009] Call Trace: [ 60.246479][ T5009] <TASK> [ 60.249609][ T5009] dump_stack_lvl+0xd9/0x150 [ 60.254212][ T5009] panic+0x686/0x730 [ 60.258366][ T5009] ? panic_smp_self_stop+0xa0/0xa0 [ 60.263845][ T5009] ? syslog_print_all+0x3a0/0x3a0 [ 60.269049][ T5009] check_panic_on_warn+0xb1/0xc0 [ 60.274265][ T5009] __ubsan_handle_out_of_bounds+0xfd/0x140 [ 60.280082][ T5009] ? schedule_timeout+0x241/0x2b0 [ 60.285208][ T5009] alloc_pid+0xbe5/0xdd0 [ 60.289544][ T5009] ? copy_namespaces+0x1e3/0x500 [ 60.294486][ T5009] copy_process+0x4589/0x7620 [ 60.299269][ T5009] ? pidfd_prepare+0x80/0x80 [ 60.303860][ T5009] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 60.309892][ T5009] kernel_clone+0xeb/0x890 [ 60.314325][ T5009] ? create_io_thread+0xe0/0xe0 [ 60.319197][ T5009] ? ksys_unshare+0x676/0x920 [ 60.323898][ T5009] ? lock_downgrade+0x690/0x690 [ 60.328776][ T5009] ? do_raw_spin_lock+0x124/0x2b0 [ 60.333818][ T5009] ? spin_bug+0x1c0/0x1c0 [ 60.338334][ T5009] __do_sys_clone+0xba/0x100 [ 60.342947][ T5009] ? kernel_clone+0x890/0x890 [ 60.347747][ T5009] ? syscall_enter_from_user_mode+0x26/0x80 [ 60.353690][ T5009] do_syscall_64+0x39/0xb0 [ 60.358141][ T5009] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 60.364153][ T5009] RIP: 0033:0x7f76eac89fab [ 60.368575][ 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 [ 60.388716][ T5009] RSP: 002b:00007ffda2fc0210 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 60.397483][ T5009] RAX: ffffffffffffffda RBX: 00007ffda2fc0868 RCX: 00007f76eac89fab [ 60.405819][ T5009] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 [ 60.413967][ T5009] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000555556b52400 [ 60.422149][ T5009] R10: 0000555556b526d0 R11: 0000000000000246 R12: 0000000000000000 [ 60.430393][ T5009] R13: 00007ffda2fc0300 R14: 00007f76eadac9d8 R15: 000000000000000c [ 60.438376][ T5009] </TASK> [ 60.441900][ T5009] Kernel Offset: disabled [ 60.446305][ T5009] Rebooting in 86400 seconds..