[ OK ] Started Getty on tty2. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty1. [ OK ] Started OpenBSD Secure Shell server. [ OK ] Started getty on tty2-tty6 if dbus and logind are not available. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.206' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 66.810200][ T8496] ------------[ cut here ]------------ [ 66.815771][ T8496] WARNING: CPU: 1 PID: 8496 at mm/page_alloc.c:4976 __alloc_pages_nodemask+0x5f8/0x730 [ 66.826337][ T8496] Modules linked in: [ 66.830437][ T8496] CPU: 1 PID: 8496 Comm: syz-executor831 Not tainted 5.11.0-rc2-syzkaller #0 [ 66.839205][ T8496] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.849798][ T8496] RIP: 0010:__alloc_pages_nodemask+0x5f8/0x730 [ 66.855984][ T8496] Code: 00 00 0c 00 0f 85 a7 00 00 00 8b 3c 24 4c 89 f2 44 89 e6 c6 44 24 70 00 48 89 6c 24 58 e8 d0 d7 ff ff 49 89 c5 e9 ea fc ff ff <0f> 0b e9 b5 fd ff ff 89 74 24 14 4c 89 4c 24 08 4c 89 74 24 18 e8 [ 66.875764][ T8496] RSP: 0018:ffffc9000130f840 EFLAGS: 00010246 [ 66.881898][ T8496] RAX: 0000000000000000 RBX: 1ffff92000261f0c RCX: 0000000000000000 [ 66.889935][ T8496] RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 0000000000040dc0 [ 66.898052][ T8496] RBP: 0000000000040dc0 R08: 0000000000000000 R09: 0000000000000000 [ 66.906060][ T8496] R10: ffffffff81b1f7f1 R11: 0000000000000000 R12: 000000000000000c [ 66.914116][ T8496] R13: 000000000000000c R14: 0000000000000000 R15: ffff88801bb5ec00 [ 66.922128][ T8496] FS: 00000000013e5880(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000 [ 66.931212][ T8496] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 66.937803][ T8496] CR2: 00007f72e34306c0 CR3: 000000001d402000 CR4: 00000000001506f0 [ 66.945815][ T8496] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 66.953875][ T8496] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 66.962619][ T8496] Call Trace: [ 66.965906][ T8496] ? __alloc_pages_slowpath.constprop.0+0x2240/0x2240 [ 66.973326][ T8496] ? vmci_handle_arr_get_entry+0xf0/0xf0 [ 66.978988][ T8496] ? __lock_acquire+0x16b7/0x5500 [ 66.984198][ T8496] alloc_pages_current+0x18c/0x2a0 [ 66.989325][ T8496] kmalloc_order+0x2e/0xb0 [ 66.993810][ T8496] kmalloc_order_trace+0x14/0x120 [ 66.998848][ T8496] qp_host_alloc_queue+0x4d/0x230 [ 67.004035][ T8496] qp_broker_alloc+0xea7/0x1bf0 [ 67.008907][ T8496] ? vmci_qpair_get_produce_indexes+0x5f0/0x5f0 [ 67.015210][ T8496] ? lock_downgrade+0x6d0/0x6d0 [ 67.020167][ T8496] vmci_qp_broker_alloc+0x48/0x60 [ 67.025212][ T8496] vmci_host_do_alloc_queuepair.constprop.0+0x2c8/0x3a0 [ 67.032185][ T8496] ? copy_overflow+0x30/0x30 [ 67.036785][ T8496] ? tomoyo_path_number_perm+0x204/0x590 [ 67.042501][ T8496] ? lock_downgrade+0x6d0/0x6d0 [ 67.047362][ T8496] ? slab_free_freelist_hook+0x5d/0x150 [ 67.052970][ T8496] ? tomoyo_path_number_perm+0x441/0x590 [ 67.058608][ T8496] ? kfree+0xdb/0x360 [ 67.062669][ T8496] ? tomoyo_execute_permission+0x4a0/0x4a0 [ 67.068554][ T8496] vmci_host_unlocked_ioctl+0x13c7/0x1e50 [ 67.074357][ T8496] ? drv_cp_harray_to_user+0x1b0/0x1b0 [ 67.079928][ T8496] ? putname+0xe1/0x120 [ 67.084191][ T8496] ? __sanitizer_cov_trace_switch+0x63/0xf0 [ 67.091244][ T8496] ? __sanitizer_cov_trace_const_cmp2+0x22/0x80 [ 67.097593][ T8496] ? do_vfs_ioctl+0x27d/0x1090 [ 67.102790][ T8496] ? generic_block_fiemap+0x60/0x60 [ 67.108013][ T8496] ? build_open_flags+0x680/0x680 [ 67.113302][ T8496] ? _down_write_nest_lock+0x150/0x150 [ 67.118862][ T8496] ? __x64_sys_openat+0x13f/0x1f0 [ 67.123960][ T8496] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 67.130305][ T8496] ? drv_cp_harray_to_user+0x1b0/0x1b0 [ 67.135764][ T8496] __x64_sys_ioctl+0x193/0x200 [ 67.140572][ T8496] do_syscall_64+0x2d/0x70 [ 67.145004][ T8496] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 67.150957][ T8496] RIP: 0033:0x4402f9 [ 67.154853][ T8496] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 67.174710][ T8496] RSP: 002b:00007ffd50062838 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 67.183223][ T8496] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004402f9 [ 67.191282][ T8496] RDX: 0000000020000040 RSI: 00000000000007a8 RDI: 0000000000000003 [ 67.199411][ T8496] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 67.207381][ T8496] R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000401b00 [ 67.215416][ T8496] R13: 0000000000401b90 R14: 0000000000000000 R15: 0000000000000000 [ 67.223537][ T8496] Kernel panic - not syncing: panic_on_warn set ... [ 67.230125][ T8496] CPU: 1 PID: 8496 Comm: syz-executor831 Not tainted 5.11.0-rc2-syzkaller #0 [ 67.238859][ T8496] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.248926][ T8496] Call Trace: [ 67.252187][ T8496] dump_stack+0x107/0x163 [ 67.256536][ T8496] panic+0x306/0x73d [ 67.260450][ T8496] ? __warn_printk+0xf3/0xf3 [ 67.265035][ T8496] ? __warn.cold+0x1a/0x44 [ 67.269432][ T8496] ? __alloc_pages_nodemask+0x5f8/0x730 [ 67.274964][ T8496] __warn.cold+0x35/0x44 [ 67.279219][ T8496] ? __alloc_pages_nodemask+0x5f8/0x730 [ 67.284759][ T8496] report_bug+0x1bd/0x210 [ 67.289074][ T8496] handle_bug+0x3c/0x60 [ 67.293208][ T8496] exc_invalid_op+0x14/0x40 [ 67.297697][ T8496] asm_exc_invalid_op+0x12/0x20 [ 67.302528][ T8496] RIP: 0010:__alloc_pages_nodemask+0x5f8/0x730 [ 67.308696][ T8496] Code: 00 00 0c 00 0f 85 a7 00 00 00 8b 3c 24 4c 89 f2 44 89 e6 c6 44 24 70 00 48 89 6c 24 58 e8 d0 d7 ff ff 49 89 c5 e9 ea fc ff ff <0f> 0b e9 b5 fd ff ff 89 74 24 14 4c 89 4c 24 08 4c 89 74 24 18 e8 [ 67.328309][ T8496] RSP: 0018:ffffc9000130f840 EFLAGS: 00010246 [ 67.334359][ T8496] RAX: 0000000000000000 RBX: 1ffff92000261f0c RCX: 0000000000000000 [ 67.342312][ T8496] RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 0000000000040dc0 [ 67.350280][ T8496] RBP: 0000000000040dc0 R08: 0000000000000000 R09: 0000000000000000 [ 67.358228][ T8496] R10: ffffffff81b1f7f1 R11: 0000000000000000 R12: 000000000000000c [ 67.366176][ T8496] R13: 000000000000000c R14: 0000000000000000 R15: ffff88801bb5ec00 [ 67.374133][ T8496] ? policy_node+0xe1/0x140 [ 67.378627][ T8496] ? __alloc_pages_slowpath.constprop.0+0x2240/0x2240 [ 67.385376][ T8496] ? vmci_handle_arr_get_entry+0xf0/0xf0 [ 67.390992][ T8496] ? __lock_acquire+0x16b7/0x5500 [ 67.396003][ T8496] alloc_pages_current+0x18c/0x2a0 [ 67.401098][ T8496] kmalloc_order+0x2e/0xb0 [ 67.405494][ T8496] kmalloc_order_trace+0x14/0x120 [ 67.410529][ T8496] qp_host_alloc_queue+0x4d/0x230 [ 67.415535][ T8496] qp_broker_alloc+0xea7/0x1bf0 [ 67.420377][ T8496] ? vmci_qpair_get_produce_indexes+0x5f0/0x5f0 [ 67.426683][ T8496] ? lock_downgrade+0x6d0/0x6d0 [ 67.431514][ T8496] vmci_qp_broker_alloc+0x48/0x60 [ 67.436538][ T8496] vmci_host_do_alloc_queuepair.constprop.0+0x2c8/0x3a0 [ 67.443627][ T8496] ? copy_overflow+0x30/0x30 [ 67.448212][ T8496] ? tomoyo_path_number_perm+0x204/0x590 [ 67.453827][ T8496] ? lock_downgrade+0x6d0/0x6d0 [ 67.458664][ T8496] ? slab_free_freelist_hook+0x5d/0x150 [ 67.464207][ T8496] ? tomoyo_path_number_perm+0x441/0x590 [ 67.469908][ T8496] ? kfree+0xdb/0x360 [ 67.473875][ T8496] ? tomoyo_execute_permission+0x4a0/0x4a0 [ 67.479682][ T8496] vmci_host_unlocked_ioctl+0x13c7/0x1e50 [ 67.485472][ T8496] ? drv_cp_harray_to_user+0x1b0/0x1b0 [ 67.490912][ T8496] ? putname+0xe1/0x120 [ 67.495049][ T8496] ? __sanitizer_cov_trace_switch+0x63/0xf0 [ 67.500925][ T8496] ? __sanitizer_cov_trace_const_cmp2+0x22/0x80 [ 67.507158][ T8496] ? do_vfs_ioctl+0x27d/0x1090 [ 67.511902][ T8496] ? generic_block_fiemap+0x60/0x60 [ 67.517092][ T8496] ? build_open_flags+0x680/0x680 [ 67.522104][ T8496] ? _down_write_nest_lock+0x150/0x150 [ 67.527631][ T8496] ? __x64_sys_openat+0x13f/0x1f0 [ 67.532632][ T8496] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 67.538849][ T8496] ? drv_cp_harray_to_user+0x1b0/0x1b0 [ 67.544300][ T8496] __x64_sys_ioctl+0x193/0x200 [ 67.549046][ T8496] do_syscall_64+0x2d/0x70 [ 67.553460][ T8496] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 67.559340][ T8496] RIP: 0033:0x4402f9 [ 67.563215][ T8496] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 67.582799][ T8496] RSP: 002b:00007ffd50062838 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 67.591199][ T8496] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004402f9 [ 67.599163][ T8496] RDX: 0000000020000040 RSI: 00000000000007a8 RDI: 0000000000000003 [ 67.607111][ T8496] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 67.615059][ T8496] R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000401b00 [ 67.623011][ T8496] R13: 0000000000401b90 R14: 0000000000000000 R15: 0000000000000000 [ 67.631698][ T8496] Kernel Offset: disabled [ 67.636096][ T8496] Rebooting in 86400 seconds..