DUID 00:04:69:33:ee:26:c2:ff:7f:35:04:e2:46:39:99:69:94:c6 forked to background, child pid 4670 [ 35.702953][ T4671] 8021q: adding VLAN 0 to HW filter on device bond0 [ 35.716723][ T4671] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.10.59' (ECDSA) to the list of known hosts. 2023/07/05 21:11:41 fuzzer started 2023/07/05 21:11:41 connecting to host at 10.128.0.169:38995 2023/07/05 21:11:41 checking machine... 2023/07/05 21:11:41 checking revisions... 2023/07/05 21:11:41 testing simple program... syzkaller login: [ 56.242759][ T5004] cgroup: Unknown subsys name 'net' [ 56.358968][ T5004] cgroup: Unknown subsys name 'rlimit' [ 57.730273][ T5004] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k FS [ 57.743069][ T4996] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=4996 'syz-fuzzer' [ 57.851796][ T5006] ================================================================================ [ 57.861376][ T5006] UBSAN: array-index-out-of-bounds in kernel/pid.c:244:15 [ 57.868608][ T5006] index 1 is out of range for type 'upid [1]' [ 57.874897][ T5006] CPU: 1 PID: 5006 Comm: syz-executor.0 Not tainted 6.4.0-syzkaller-04326-gcc7eab25b1cf #0 [ 57.885048][ T5006] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 57.895643][ T5006] Call Trace: [ 57.898921][ T5006] [ 57.901947][ T5006] dump_stack_lvl+0x136/0x150 [ 57.906807][ T5006] __ubsan_handle_out_of_bounds+0xd5/0x140 [ 57.912621][ T5006] ? down_read_killable+0x4a1/0x4f0 [ 57.917922][ T5006] alloc_pid+0xbe5/0xdd0 [ 57.922187][ T5006] ? copy_namespaces+0x1e3/0x500 [ 57.927122][ T5006] copy_process+0x4589/0x7620 [ 57.931804][ T5006] ? pidfd_prepare+0x80/0x80 [ 57.936440][ T5006] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 57.942441][ T5006] kernel_clone+0xeb/0x890 [ 57.947022][ T5006] ? create_io_thread+0xe0/0xe0 [ 57.951871][ T5006] ? ksys_unshare+0x676/0x920 [ 57.956648][ T5006] ? lock_downgrade+0x690/0x690 [ 57.961517][ T5006] ? do_raw_spin_lock+0x124/0x2b0 [ 57.966636][ T5006] ? spin_bug+0x1c0/0x1c0 [ 57.971077][ T5006] __do_sys_clone+0xba/0x100 [ 57.976010][ T5006] ? kernel_clone+0x890/0x890 [ 57.980690][ T5006] ? syscall_enter_from_user_mode+0x26/0x80 [ 57.986584][ T5006] do_syscall_64+0x39/0xb0 [ 57.990993][ T5006] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 57.997319][ T5006] RIP: 0033:0x7fb8a9c89fab [ 58.001911][ T5006] 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 [ 58.023073][ T5006] RSP: 002b:00007ffc05d82350 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 58.031748][ T5006] RAX: ffffffffffffffda RBX: 00007ffc05d829a8 RCX: 00007fb8a9c89fab [ 58.039882][ T5006] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 [ 58.048197][ T5006] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000555555707400 [ 58.056247][ T5006] R10: 00005555557076d0 R11: 0000000000000246 R12: 0000000000000000 [ 58.064379][ T5006] R13: 00007ffc05d82440 R14: 00007fb8a9dac9d8 R15: 000000000000000c [ 58.072349][ T5006] [ 58.075513][ T5006] ================================================================================ [ 58.085443][ T5006] Kernel panic - not syncing: UBSAN: panic_on_warn set ... [ 58.092663][ T5006] CPU: 0 PID: 5006 Comm: syz-executor.0 Not tainted 6.4.0-syzkaller-04326-gcc7eab25b1cf #0 [ 58.102730][ T5006] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 58.113078][ T5006] Call Trace: [ 58.116353][ T5006] [ 58.119311][ T5006] dump_stack_lvl+0xd9/0x150 [ 58.124101][ T5006] panic+0x686/0x730 [ 58.128546][ T5006] ? panic_smp_self_stop+0xa0/0xa0 [ 58.133702][ T5006] ? syslog_print_all+0x3a0/0x3a0 [ 58.139672][ T5006] check_panic_on_warn+0xb1/0xc0 [ 58.145350][ T5006] __ubsan_handle_out_of_bounds+0xfd/0x140 [ 58.152852][ T5006] ? down_read_killable+0x4a1/0x4f0 [ 58.158439][ T5006] alloc_pid+0xbe5/0xdd0 [ 58.162776][ T5006] ? copy_namespaces+0x1e3/0x500 [ 58.168712][ T5006] copy_process+0x4589/0x7620 [ 58.173965][ T5006] ? pidfd_prepare+0x80/0x80 [ 58.178683][ T5006] ? lockdep_hardirqs_on_prepare+0x410/0x410 [ 58.184771][ T5006] kernel_clone+0xeb/0x890 [ 58.189216][ T5006] ? create_io_thread+0xe0/0xe0 [ 58.194371][ T5006] ? ksys_unshare+0x676/0x920 [ 58.199175][ T5006] ? lock_downgrade+0x690/0x690 [ 58.204235][ T5006] ? do_raw_spin_lock+0x124/0x2b0 [ 58.209384][ T5006] ? spin_bug+0x1c0/0x1c0 [ 58.214177][ T5006] __do_sys_clone+0xba/0x100 [ 58.218770][ T5006] ? kernel_clone+0x890/0x890 [ 58.223458][ T5006] ? syscall_enter_from_user_mode+0x26/0x80 [ 58.229614][ T5006] do_syscall_64+0x39/0xb0 [ 58.234138][ T5006] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 58.240486][ T5006] RIP: 0033:0x7fb8a9c89fab [ 58.244937][ T5006] 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 [ 58.265005][ T5006] RSP: 002b:00007ffc05d82350 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 [ 58.273436][ T5006] RAX: ffffffffffffffda RBX: 00007ffc05d829a8 RCX: 00007fb8a9c89fab [ 58.281515][ T5006] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 [ 58.289502][ T5006] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000555555707400 [ 58.297919][ T5006] R10: 00005555557076d0 R11: 0000000000000246 R12: 0000000000000000 [ 58.306171][ T5006] R13: 00007ffc05d82440 R14: 00007fb8a9dac9d8 R15: 000000000000000c [ 58.314167][ T5006] [ 58.317515][ T5006] Kernel Offset: disabled [ 58.322109][ T5006] Rebooting in 86400 seconds..