DUID 00:04:0d:c2:4b:05:43:6c:47:47:3f:af:30:96:b7:33:ac:24 forked to background, child pid 4670 [ 40.337961][ T4671] 8021q: adding VLAN 0 to HW filter on device bond0 [ 40.355280][ T4671] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.37' (ECDSA) to the list of known hosts. 2023/07/05 17:34:32 fuzzer started 2023/07/05 17:34:32 connecting to host at 10.128.0.169:36219 2023/07/05 17:34:32 checking machine... 2023/07/05 17:34:32 checking revisions... 2023/07/05 17:34:32 testing simple program... syzkaller login: [ 65.667542][ T5001] cgroup: Unknown subsys name 'net' [ 65.830772][ T5001] cgroup: Unknown subsys name 'rlimit' [ 67.213023][ T5001] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 67.228460][ T4999] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=4999 'syz-fuzzer' [ 67.345264][ T5003] ================================================================================ [ 67.354981][ T5003] UBSAN: array-index-out-of-bounds in kernel/pid.c:244:15 [ 67.362180][ T5003] index 1 is out of range for type 'upid [1]' [ 67.368396][ T5003] CPU: 0 PID: 5003 Comm: syz-executor.0 Not tainted 6.4.0-syzkaller-04304-gf7306acec9aa #0 [ 67.378757][ T5003] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 67.388908][ T5003] Call Trace: [ 67.392193][ T5003] [ 67.395119][ T5003] dump_stack_lvl+0x136/0x150 [ 67.399905][ T5003] __ubsan_handle_out_of_bounds+0xd5/0x140 [ 67.406232][ T5003] ? down_read_killable+0x4a1/0x4f0 [ 67.411623][ T5003] alloc_pid+0xbe5/0xdd0 [ 67.415886][ T5003] ? copy_namespaces+0x1e3/0x500 [ 67.420962][ T5003] copy_process+0x4589/0x7620 [ 67.425784][ T5003] ? pidfd_prepare+0x80/0x80 [ 67.430400][ T5003] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 67.436675][ T5003] kernel_clone+0xeb/0x890 [ 67.441116][ T5003] ? create_io_thread+0xe0/0xe0 [ 67.445997][ T5003] ? ksys_unshare+0x676/0x920 [ 67.450887][ T5003] ? lock_downgrade+0x690/0x690 [ 67.456628][ T5003] ? do_raw_spin_lock+0x124/0x2b0 [ 67.462095][ T5003] ? spin_bug+0x1c0/0x1c0 [ 67.467585][ T5003] __do_sys_clone+0xba/0x100 [ 67.472419][ T5003] ? kernel_clone+0x890/0x890 [ 67.477193][ T5003] ? syscall_enter_from_user_mode+0x26/0x80 [ 67.483239][ T5003] do_syscall_64+0x39/0xb0 [ 67.488203][ T5003] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 67.494695][ T5003] RIP: 0033:0x7f12af489fab [ 67.499706][ 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 [ 67.520491][ T5003] RSP: 002b:00007ffda5f5a2f0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 67.529312][ T5003] RAX: ffffffffffffffda RBX: 00007ffda5f5a948 RCX: 00007f12af489fab [ 67.538037][ T5003] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 [ 67.546946][ T5003] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000555556273400 [ 67.555114][ T5003] R10: 00005555562736d0 R11: 0000000000000246 R12: 0000000000000000 [ 67.563282][ T5003] R13: 00007ffda5f5a3e0 R14: 00007f12af5ac9d8 R15: 000000000000000c [ 67.572001][ T5003] [ 67.575379][ T5003] ================================================================================ [ 67.585310][ T5003] Kernel panic - not syncing: UBSAN: panic_on_warn set ... [ 67.592764][ T5003] CPU: 0 PID: 5003 Comm: syz-executor.0 Not tainted 6.4.0-syzkaller-04304-gf7306acec9aa #0 [ 67.602998][ T5003] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 67.613451][ T5003] Call Trace: [ 67.616787][ T5003] [ 67.619924][ T5003] dump_stack_lvl+0xd9/0x150 [ 67.624903][ T5003] panic+0x686/0x730 [ 67.628999][ T5003] ? panic_smp_self_stop+0xa0/0xa0 [ 67.634377][ T5003] ? syslog_print_all+0x3a0/0x3a0 [ 67.640384][ T5003] check_panic_on_warn+0xb1/0xc0 [ 67.645885][ T5003] __ubsan_handle_out_of_bounds+0xfd/0x140 [ 67.651900][ T5003] ? down_read_killable+0x4a1/0x4f0 [ 67.657408][ T5003] alloc_pid+0xbe5/0xdd0 [ 67.661982][ T5003] ? copy_namespaces+0x1e3/0x500 [ 67.666975][ T5003] copy_process+0x4589/0x7620 [ 67.672052][ T5003] ? pidfd_prepare+0x80/0x80 [ 67.676749][ T5003] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 67.682760][ T5003] kernel_clone+0xeb/0x890 [ 67.687219][ T5003] ? create_io_thread+0xe0/0xe0 [ 67.692229][ T5003] ? ksys_unshare+0x676/0x920 [ 67.697123][ T5003] ? lock_downgrade+0x690/0x690 [ 67.702333][ T5003] ? do_raw_spin_lock+0x124/0x2b0 [ 67.707511][ T5003] ? spin_bug+0x1c0/0x1c0 [ 67.712403][ T5003] __do_sys_clone+0xba/0x100 [ 67.717287][ T5003] ? kernel_clone+0x890/0x890 [ 67.721987][ T5003] ? syscall_enter_from_user_mode+0x26/0x80 [ 67.727906][ T5003] do_syscall_64+0x39/0xb0 [ 67.732348][ T5003] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 67.738515][ T5003] RIP: 0033:0x7f12af489fab [ 67.743025][ 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 [ 67.762991][ T5003] RSP: 002b:00007ffda5f5a2f0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 67.771501][ T5003] RAX: ffffffffffffffda RBX: 00007ffda5f5a948 RCX: 00007f12af489fab [ 67.779477][ T5003] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 [ 67.787661][ T5003] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000555556273400 [ 67.796110][ T5003] R10: 00005555562736d0 R11: 0000000000000246 R12: 0000000000000000 [ 67.804370][ T5003] R13: 00007ffda5f5a3e0 R14: 00007f12af5ac9d8 R15: 000000000000000c [ 67.813008][ T5003] [ 67.816371][ T5003] Kernel Offset: disabled [ 67.821056][ T5003] Rebooting in 86400 seconds..