DUID 00:04:00:dd:10:da:7f:85:b5:90:fb:fd:97:ac:66:d6:08:36 forked to background, child pid 4674 [ 35.458512][ T4675] 8021q: adding VLAN 0 to HW filter on device bond0 [ 35.470759][ T4675] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.107' (ECDSA) to the list of known hosts. 2023/07/03 14:58:50 fuzzer started 2023/07/03 14:58:50 connecting to host at 10.128.0.169:40603 2023/07/03 14:58:50 checking machine... 2023/07/03 14:58:50 checking revisions... 2023/07/03 14:58:50 testing simple program... syzkaller login: [ 58.615983][ T5011] cgroup: Unknown subsys name 'net' [ 58.721148][ T5011] cgroup: Unknown subsys name 'rlimit' [ 60.078297][ T5011] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 60.091406][ T5009] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=5009 'syz-fuzzer' [ 60.198151][ T5013] ================================================================================ [ 60.207712][ T5013] UBSAN: array-index-out-of-bounds in kernel/pid.c:244:15 [ 60.215117][ T5013] index 1 is out of range for type 'upid [1]' [ 60.221376][ T5013] CPU: 0 PID: 5013 Comm: syz-executor.0 Not tainted 6.4.0-syzkaller-04247-g3a8a670eeeaa #0 [ 60.231453][ T5013] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 60.242917][ T5013] Call Trace: [ 60.246714][ T5013] [ 60.250440][ T5013] dump_stack_lvl+0x136/0x150 [ 60.255591][ T5013] __ubsan_handle_out_of_bounds+0xd5/0x140 [ 60.261510][ T5013] ? try_to_take_rt_mutex+0x431/0xb70 [ 60.267028][ T5013] alloc_pid+0xbe5/0xdd0 [ 60.271756][ T5013] ? copy_namespaces+0x1e3/0x500 [ 60.276808][ T5013] copy_process+0x4589/0x7620 [ 60.281892][ T5013] ? pidfd_prepare+0x80/0x80 [ 60.286517][ T5013] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 60.292541][ T5013] kernel_clone+0xeb/0x890 [ 60.297411][ T5013] ? create_io_thread+0xe0/0xe0 [ 60.302491][ T5013] ? ksys_unshare+0x676/0x920 [ 60.307315][ T5013] ? lock_downgrade+0x690/0x690 [ 60.312326][ T5013] ? do_raw_spin_lock+0x124/0x2b0 [ 60.317485][ T5013] ? spin_bug+0x1c0/0x1c0 [ 60.322384][ T5013] __do_sys_clone+0xba/0x100 [ 60.327407][ T5013] ? kernel_clone+0x890/0x890 [ 60.332476][ T5013] ? syscall_enter_from_user_mode+0x26/0x80 [ 60.338491][ T5013] do_syscall_64+0x39/0xb0 [ 60.343135][ T5013] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 60.349055][ T5013] RIP: 0033:0x7fb3f5a89fab [ 60.353925][ T5013] 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 [ 60.374958][ T5013] RSP: 002b:00007ffef3817030 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 60.384976][ T5013] RAX: ffffffffffffffda RBX: 00007ffef3817688 RCX: 00007fb3f5a89fab [ 60.393264][ T5013] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 [ 60.401459][ T5013] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000555556209400 [ 60.409725][ T5013] R10: 00005555562096d0 R11: 0000000000000246 R12: 0000000000000000 [ 60.417926][ T5013] R13: 00007ffef3817120 R14: 00007fb3f5bac9d8 R15: 000000000000000c [ 60.426486][ T5013] [ 60.429797][ T5013] ================================================================================ [ 60.439346][ T5013] Kernel panic - not syncing: UBSAN: panic_on_warn set ... [ 60.446992][ T5013] CPU: 0 PID: 5013 Comm: syz-executor.0 Not tainted 6.4.0-syzkaller-04247-g3a8a670eeeaa #0 [ 60.457498][ T5013] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 60.468002][ T5013] Call Trace: [ 60.471396][ T5013] [ 60.474329][ T5013] dump_stack_lvl+0xd9/0x150 [ 60.479113][ T5013] panic+0x686/0x730 [ 60.483314][ T5013] ? panic_smp_self_stop+0xa0/0xa0 [ 60.489096][ T5013] ? syslog_print_all+0x3a0/0x3a0 [ 60.494716][ T5013] check_panic_on_warn+0xb1/0xc0 [ 60.500329][ T5013] __ubsan_handle_out_of_bounds+0xfd/0x140 [ 60.506332][ T5013] ? try_to_take_rt_mutex+0x431/0xb70 [ 60.511911][ T5013] alloc_pid+0xbe5/0xdd0 [ 60.516367][ T5013] ? copy_namespaces+0x1e3/0x500 [ 60.521666][ T5013] copy_process+0x4589/0x7620 [ 60.526449][ T5013] ? pidfd_prepare+0x80/0x80 [ 60.531576][ T5013] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 60.537853][ T5013] kernel_clone+0xeb/0x890 [ 60.542549][ T5013] ? create_io_thread+0xe0/0xe0 [ 60.547851][ T5013] ? ksys_unshare+0x676/0x920 [ 60.553006][ T5013] ? lock_downgrade+0x690/0x690 [ 60.558069][ T5013] ? do_raw_spin_lock+0x124/0x2b0 [ 60.564105][ T5013] ? spin_bug+0x1c0/0x1c0 [ 60.576526][ T5013] __do_sys_clone+0xba/0x100 [ 60.581215][ T5013] ? kernel_clone+0x890/0x890 [ 60.586377][ T5013] ? syscall_enter_from_user_mode+0x26/0x80 [ 60.593010][ T5013] do_syscall_64+0x39/0xb0 [ 60.597666][ T5013] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 60.603968][ T5013] RIP: 0033:0x7fb3f5a89fab [ 60.608413][ T5013] 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 [ 60.628552][ T5013] RSP: 002b:00007ffef3817030 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 60.636977][ T5013] RAX: ffffffffffffffda RBX: 00007ffef3817688 RCX: 00007fb3f5a89fab [ 60.645041][ T5013] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 [ 60.654150][ T5013] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000555556209400 [ 60.662656][ T5013] R10: 00005555562096d0 R11: 0000000000000246 R12: 0000000000000000 [ 60.671070][ T5013] R13: 00007ffef3817120 R14: 00007fb3f5bac9d8 R15: 000000000000000c [ 60.679527][ T5013] [ 60.682913][ T5013] Kernel Offset: disabled [ 60.687324][ T5013] Rebooting in 86400 seconds..