DUID 00:04:1b:66:36:25:cc:bb:2d:eb:42:73:ce:96:f3:b7:d0:c0 forked to background, child pid 4671 [ 36.812909][ T4672] 8021q: adding VLAN 0 to HW filter on device bond0 [ 36.828781][ T4672] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.15.196' (ECDSA) to the list of known hosts. 2023/07/06 02:22:30 fuzzer started 2023/07/06 02:22:30 connecting to host at 10.128.0.169:40857 2023/07/06 02:22:30 checking machine... 2023/07/06 02:22:30 checking revisions... 2023/07/06 02:22:31 testing simple program... syzkaller login: [ 58.800738][ T5001] cgroup: Unknown subsys name 'net' [ 58.889593][ T5001] cgroup: Unknown subsys name 'rlimit' [ 60.239264][ T5001] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 60.252325][ T4995] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=4995 'syz-fuzzer' [ 60.360896][ T5003] ================================================================================ [ 60.370277][ T5003] UBSAN: array-index-out-of-bounds in kernel/pid.c:244:15 [ 60.377394][ T5003] index 1 is out of range for type 'upid [1]' [ 60.383587][ T5003] CPU: 1 PID: 5003 Comm: syz-executor.0 Not tainted 6.4.0-syzkaller-04263-gfd283ab196a8 #0 [ 60.393679][ T5003] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 60.403907][ T5003] Call Trace: [ 60.407197][ T5003] [ 60.410164][ T5003] dump_stack_lvl+0x136/0x150 [ 60.414990][ T5003] __ubsan_handle_out_of_bounds+0xd5/0x140 [ 60.420896][ T5003] ? try_to_take_rt_mutex+0x431/0xb70 [ 60.426450][ T5003] alloc_pid+0xbe5/0xdd0 [ 60.430692][ T5003] ? copy_namespaces+0x1e3/0x500 [ 60.435649][ T5003] copy_process+0x4589/0x7620 [ 60.440369][ T5003] ? pidfd_prepare+0x80/0x80 [ 60.445018][ T5003] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 60.451111][ T5003] kernel_clone+0xeb/0x890 [ 60.455724][ T5003] ? create_io_thread+0xe0/0xe0 [ 60.460611][ T5003] ? ksys_unshare+0x676/0x920 [ 60.465494][ T5003] ? lock_downgrade+0x690/0x690 [ 60.470382][ T5003] ? do_raw_spin_lock+0x124/0x2b0 [ 60.475437][ T5003] ? spin_bug+0x1c0/0x1c0 [ 60.479788][ T5003] __do_sys_clone+0xba/0x100 [ 60.484393][ T5003] ? kernel_clone+0x890/0x890 [ 60.489091][ T5003] ? syscall_enter_from_user_mode+0x26/0x80 [ 60.494999][ T5003] do_syscall_64+0x39/0xb0 [ 60.499696][ T5003] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 60.505615][ T5003] RIP: 0033:0x7fd7cd289fab [ 60.510036][ T5003] 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 [ 60.529854][ T5003] RSP: 002b:00007fff52850ea0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 60.538389][ T5003] RAX: ffffffffffffffda RBX: 00007fff528514f8 RCX: 00007fd7cd289fab [ 60.546489][ T5003] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 [ 60.554480][ T5003] RBP: 0000000000000000 R08: 0000000000000000 R09: 00005555563d9400 [ 60.563157][ T5003] R10: 00005555563d96d0 R11: 0000000000000246 R12: 0000000000000000 [ 60.571846][ T5003] R13: 00007fff52850f90 R14: 00007fd7cd3ac9d8 R15: 000000000000000c [ 60.579842][ T5003] [ 60.583150][ T5003] ================================================================================ [ 60.592799][ T5003] Kernel panic - not syncing: UBSAN: panic_on_warn set ... [ 60.600004][ T5003] CPU: 0 PID: 5003 Comm: syz-executor.0 Not tainted 6.4.0-syzkaller-04263-gfd283ab196a8 #0 [ 60.609967][ T5003] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 60.620013][ T5003] Call Trace: [ 60.623287][ T5003] [ 60.626214][ T5003] dump_stack_lvl+0xd9/0x150 [ 60.631153][ T5003] panic+0x686/0x730 [ 60.635048][ T5003] ? panic_smp_self_stop+0xa0/0xa0 [ 60.640243][ T5003] ? syslog_print_all+0x3a0/0x3a0 [ 60.645269][ T5003] check_panic_on_warn+0xb1/0xc0 [ 60.650219][ T5003] __ubsan_handle_out_of_bounds+0xfd/0x140 [ 60.656122][ T5003] ? try_to_take_rt_mutex+0x431/0xb70 [ 60.661492][ T5003] alloc_pid+0xbe5/0xdd0 [ 60.665736][ T5003] ? copy_namespaces+0x1e3/0x500 [ 60.670838][ T5003] copy_process+0x4589/0x7620 [ 60.675709][ T5003] ? pidfd_prepare+0x80/0x80 [ 60.680400][ T5003] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 60.686395][ T5003] kernel_clone+0xeb/0x890 [ 60.690811][ T5003] ? create_io_thread+0xe0/0xe0 [ 60.695664][ T5003] ? ksys_unshare+0x676/0x920 [ 60.700546][ T5003] ? lock_downgrade+0x690/0x690 [ 60.705732][ T5003] ? do_raw_spin_lock+0x124/0x2b0 [ 60.710771][ T5003] ? spin_bug+0x1c0/0x1c0 [ 60.715102][ T5003] __do_sys_clone+0xba/0x100 [ 60.719688][ T5003] ? kernel_clone+0x890/0x890 [ 60.724453][ T5003] ? syscall_enter_from_user_mode+0x26/0x80 [ 60.730448][ T5003] do_syscall_64+0x39/0xb0 [ 60.735146][ T5003] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 60.741070][ T5003] RIP: 0033:0x7fd7cd289fab [ 60.745483][ T5003] 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 [ 60.767500][ T5003] RSP: 002b:00007fff52850ea0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 60.775915][ T5003] RAX: ffffffffffffffda RBX: 00007fff528514f8 RCX: 00007fd7cd289fab [ 60.783934][ T5003] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 [ 60.791916][ T5003] RBP: 0000000000000000 R08: 0000000000000000 R09: 00005555563d9400 [ 60.799903][ T5003] R10: 00005555563d96d0 R11: 0000000000000246 R12: 0000000000000000 [ 60.808061][ T5003] R13: 00007fff52850f90 R14: 00007fd7cd3ac9d8 R15: 000000000000000c [ 60.816066][ T5003] [ 60.819838][ T5003] Kernel Offset: disabled [ 60.824238][ T5003] Rebooting in 86400 seconds..