DUID 00:04:87:e9:86:9c:37:5a:86:1a:3e:7a:33:57:0c:76:7d:1a forked to background, child pid 4670 [ 35.642058][ T4671] 8021q: adding VLAN 0 to HW filter on device bond0 [ 35.652057][ T4671] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.126' (ECDSA) to the list of known hosts. 2023/07/05 05:14:13 fuzzer started 2023/07/05 05:14:13 connecting to host at 10.128.0.169:37415 2023/07/05 05:14:13 checking machine... 2023/07/05 05:14:13 checking revisions... 2023/07/05 05:14:13 testing simple program... syzkaller login: [ 56.180345][ T5001] cgroup: Unknown subsys name 'net' [ 56.303103][ T5001] cgroup: Unknown subsys name 'rlimit' [ 57.617046][ T5001] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 57.629780][ T4996] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=4996 'syz-fuzzer' [ 57.739583][ T5003] ================================================================================ [ 57.749561][ T5003] UBSAN: array-index-out-of-bounds in kernel/pid.c:244:15 [ 57.757023][ T5003] index 1 is out of range for type 'upid [1]' [ 57.763218][ T5003] CPU: 0 PID: 5003 Comm: syz-executor.0 Not tainted 6.4.0-syzkaller-04311-g14bb236b2992 #0 [ 57.773387][ T5003] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 57.783615][ T5003] Call Trace: [ 57.786899][ T5003] [ 57.789836][ T5003] dump_stack_lvl+0x136/0x150 [ 57.794766][ T5003] __ubsan_handle_out_of_bounds+0xd5/0x140 [ 57.800709][ T5003] ? down_read_killable+0x4a1/0x4f0 [ 57.806211][ T5003] alloc_pid+0xbe5/0xdd0 [ 57.810593][ T5003] ? copy_namespaces+0x1e3/0x500 [ 57.815637][ T5003] copy_process+0x4589/0x7620 [ 57.820495][ T5003] ? pidfd_prepare+0x80/0x80 [ 57.825080][ T5003] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 57.831072][ T5003] kernel_clone+0xeb/0x890 [ 57.835660][ T5003] ? create_io_thread+0xe0/0xe0 [ 57.840516][ T5003] ? ksys_unshare+0x676/0x920 [ 57.845210][ T5003] ? lock_downgrade+0x690/0x690 [ 57.850320][ T5003] ? do_raw_spin_lock+0x124/0x2b0 [ 57.855430][ T5003] ? spin_bug+0x1c0/0x1c0 [ 57.859758][ T5003] __do_sys_clone+0xba/0x100 [ 57.864343][ T5003] ? kernel_clone+0x890/0x890 [ 57.869056][ T5003] ? syscall_enter_from_user_mode+0x26/0x80 [ 57.875223][ T5003] do_syscall_64+0x39/0xb0 [ 57.879738][ T5003] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 57.886167][ T5003] RIP: 0033:0x7f5315289fab [ 57.890607][ 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 [ 57.911040][ T5003] RSP: 002b:00007ffd49022fd0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 57.919829][ T5003] RAX: ffffffffffffffda RBX: 00007ffd49023628 RCX: 00007f5315289fab [ 57.928442][ T5003] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 [ 57.936518][ T5003] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000555555eba400 [ 57.944864][ T5003] R10: 0000555555eba6d0 R11: 0000000000000246 R12: 0000000000000000 [ 57.953196][ T5003] R13: 00007ffd490230c0 R14: 00007f53153ac9d8 R15: 000000000000000c [ 57.961534][ T5003] [ 57.964954][ T5003] ================================================================================ [ 57.974357][ T5003] Kernel panic - not syncing: UBSAN: panic_on_warn set ... [ 57.981641][ T5003] CPU: 0 PID: 5003 Comm: syz-executor.0 Not tainted 6.4.0-syzkaller-04311-g14bb236b2992 #0 [ 57.992321][ T5003] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 58.002833][ T5003] Call Trace: [ 58.006117][ T5003] [ 58.009172][ T5003] dump_stack_lvl+0xd9/0x150 [ 58.013891][ T5003] panic+0x686/0x730 [ 58.017896][ T5003] ? panic_smp_self_stop+0xa0/0xa0 [ 58.023314][ T5003] ? syslog_print_all+0x3a0/0x3a0 [ 58.028822][ T5003] check_panic_on_warn+0xb1/0xc0 [ 58.034285][ T5003] __ubsan_handle_out_of_bounds+0xfd/0x140 [ 58.040202][ T5003] ? down_read_killable+0x4a1/0x4f0 [ 58.045441][ T5003] alloc_pid+0xbe5/0xdd0 [ 58.049802][ T5003] ? copy_namespaces+0x1e3/0x500 [ 58.054756][ T5003] copy_process+0x4589/0x7620 [ 58.060094][ T5003] ? pidfd_prepare+0x80/0x80 [ 58.065145][ T5003] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 58.072191][ T5003] kernel_clone+0xeb/0x890 [ 58.076805][ T5003] ? create_io_thread+0xe0/0xe0 [ 58.081942][ T5003] ? ksys_unshare+0x676/0x920 [ 58.086979][ T5003] ? lock_downgrade+0x690/0x690 [ 58.091976][ T5003] ? do_raw_spin_lock+0x124/0x2b0 [ 58.097058][ T5003] ? spin_bug+0x1c0/0x1c0 [ 58.101418][ T5003] __do_sys_clone+0xba/0x100 [ 58.106287][ T5003] ? kernel_clone+0x890/0x890 [ 58.111256][ T5003] ? syscall_enter_from_user_mode+0x26/0x80 [ 58.117424][ T5003] do_syscall_64+0x39/0xb0 [ 58.121969][ T5003] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 58.128425][ T5003] RIP: 0033:0x7f5315289fab [ 58.134793][ 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 [ 58.154950][ T5003] RSP: 002b:00007ffd49022fd0 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 58.163902][ T5003] RAX: ffffffffffffffda RBX: 00007ffd49023628 RCX: 00007f5315289fab [ 58.172493][ T5003] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 [ 58.180787][ T5003] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000555555eba400 [ 58.188763][ T5003] R10: 0000555555eba6d0 R11: 0000000000000246 R12: 0000000000000000 [ 58.197762][ T5003] R13: 00007ffd490230c0 R14: 00007f53153ac9d8 R15: 000000000000000c [ 58.206447][ T5003] [ 58.210090][ T5003] Kernel Offset: disabled [ 58.214744][ T5003] Rebooting in 86400 seconds..