[ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Load/Save RF Kill Switch Status. [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.10.51' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 71.002331][ T8469] ------------[ cut here ]------------ [ 71.009392][ T8469] WARNING: CPU: 1 PID: 8469 at mm/page_alloc.c:4976 __alloc_pages_nodemask+0x5f8/0x730 [ 71.021625][ T8469] Modules linked in: [ 71.025803][ T8469] CPU: 0 PID: 8469 Comm: syz-executor105 Not tainted 5.11.0-rc2-syzkaller #0 [ 71.036216][ T8469] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.047043][ T8469] RIP: 0010:__alloc_pages_nodemask+0x5f8/0x730 [ 71.054676][ T8469] 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 [ 71.077781][ T8469] RSP: 0018:ffffc900013efb70 EFLAGS: 00010246 [ 71.084288][ T8469] RAX: 0000000000000000 RBX: 1ffff9200027df72 RCX: 0000000000000000 [ 71.092814][ T8469] RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 0000000000040dc0 [ 71.101673][ T8469] RBP: 0000000000040dc0 R08: 0000000000000000 R09: 0000000000000000 [ 71.110961][ T8469] R10: ffffffff81b1f7f1 R11: 0000000000000000 R12: 0000000000000012 [ 71.119669][ T8469] R13: 0000000000000012 R14: 0000000000000000 R15: 0000000020000020 [ 71.128116][ T8469] FS: 0000000002127880(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000 [ 71.137483][ T8469] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 71.144462][ T8469] CR2: 0000000020000000 CR3: 0000000027766000 CR4: 00000000001506e0 [ 71.152701][ T8469] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 71.161473][ T8469] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 71.170257][ T8469] Call Trace: [ 71.173826][ T8469] ? __alloc_pages_slowpath.constprop.0+0x2240/0x2240 [ 71.182312][ T8469] ? lock_downgrade+0x6d0/0x6d0 [ 71.187555][ T8469] alloc_pages_current+0x18c/0x2a0 [ 71.196626][ T8469] kmalloc_order+0x2e/0xb0 [ 71.202508][ T8469] kmalloc_order_trace+0x14/0x120 [ 71.202551][ T8469] qrtr_tun_write_iter+0x8a/0x180 [ 71.202579][ T8469] new_sync_write+0x426/0x650 [ 71.202602][ T8469] ? putname+0xe1/0x120 [ 71.202627][ T8469] ? new_sync_read+0x6e0/0x6e0 [ 71.228523][ T8469] ? kmem_cache_free+0x315/0x350 [ 71.233847][ T8469] ? apparmor_file_permission+0x26e/0x4e0 [ 71.240532][ T8469] ? build_open_flags+0x680/0x680 [ 71.245878][ T8469] vfs_write+0x791/0xa30 [ 71.250706][ T8469] ksys_write+0x12d/0x250 [ 71.255261][ T8469] ? __ia32_sys_read+0xb0/0xb0 [ 71.260466][ T8469] ? syscall_enter_from_user_mode+0x1d/0x50 [ 71.266924][ T8469] do_syscall_64+0x2d/0x70 [ 71.271927][ T8469] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 71.278069][ T8469] RIP: 0033:0x440279 [ 71.282171][ T8469] 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 [ 71.302471][ T8469] RSP: 002b:00007ffc5f1b8358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 71.311219][ T8469] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440279 [ 71.319598][ T8469] RDX: 0000000020000020 RSI: 0000000020000000 RDI: 0000000000000003 [ 71.328568][ T8469] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 71.336802][ T8469] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401a80 [ 71.345280][ T8469] R13: 0000000000401b10 R14: 0000000000000000 R15: 0000000000000000 [ 71.353647][ T8469] Kernel panic - not syncing: panic_on_warn set ... [ 71.360584][ T8469] CPU: 0 PID: 8469 Comm: syz-executor105 Not tainted 5.11.0-rc2-syzkaller #0 [ 71.369960][ T8469] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.380118][ T8469] Call Trace: [ 71.383435][ T8469] dump_stack+0x107/0x163 [ 71.387800][ T8469] panic+0x306/0x73d [ 71.391895][ T8469] ? __warn_printk+0xf3/0xf3 [ 71.396516][ T8469] ? __warn.cold+0x1a/0x44 [ 71.400956][ T8469] ? __alloc_pages_nodemask+0x5f8/0x730 [ 71.406646][ T8469] __warn.cold+0x35/0x44 [ 71.411022][ T8469] ? __alloc_pages_nodemask+0x5f8/0x730 [ 71.416654][ T8469] report_bug+0x1bd/0x210 [ 71.421015][ T8469] handle_bug+0x3c/0x60 [ 71.425193][ T8469] exc_invalid_op+0x14/0x40 [ 71.430117][ T8469] asm_exc_invalid_op+0x12/0x20 [ 71.437887][ T8469] RIP: 0010:__alloc_pages_nodemask+0x5f8/0x730 [ 71.444231][ T8469] 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 [ 71.465197][ T8469] RSP: 0018:ffffc900013efb70 EFLAGS: 00010246 [ 71.471633][ T8469] RAX: 0000000000000000 RBX: 1ffff9200027df72 RCX: 0000000000000000 [ 71.480588][ T8469] RDX: 0000000000000000 RSI: dffffc0000000000 RDI: 0000000000040dc0 [ 71.489126][ T8469] RBP: 0000000000040dc0 R08: 0000000000000000 R09: 0000000000000000 [ 71.497370][ T8469] R10: ffffffff81b1f7f1 R11: 0000000000000000 R12: 0000000000000012 [ 71.506382][ T8469] R13: 0000000000000012 R14: 0000000000000000 R15: 0000000020000020 [ 71.514733][ T8469] ? policy_node+0xe1/0x140 [ 71.519276][ T8469] ? __alloc_pages_slowpath.constprop.0+0x2240/0x2240 [ 71.526824][ T8469] ? lock_downgrade+0x6d0/0x6d0 [ 71.531844][ T8469] alloc_pages_current+0x18c/0x2a0 [ 71.537379][ T8469] kmalloc_order+0x2e/0xb0 [ 71.542161][ T8469] kmalloc_order_trace+0x14/0x120 [ 71.547410][ T8469] qrtr_tun_write_iter+0x8a/0x180 [ 71.552548][ T8469] new_sync_write+0x426/0x650 [ 71.557251][ T8469] ? putname+0xe1/0x120 [ 71.561563][ T8469] ? new_sync_read+0x6e0/0x6e0 [ 71.566705][ T8469] ? kmem_cache_free+0x315/0x350 [ 71.571941][ T8469] ? apparmor_file_permission+0x26e/0x4e0 [ 71.578160][ T8469] ? build_open_flags+0x680/0x680 [ 71.583628][ T8469] vfs_write+0x791/0xa30 [ 71.588524][ T8469] ksys_write+0x12d/0x250 [ 71.593383][ T8469] ? __ia32_sys_read+0xb0/0xb0 [ 71.598498][ T8469] ? syscall_enter_from_user_mode+0x1d/0x50 [ 71.604583][ T8469] do_syscall_64+0x2d/0x70 [ 71.609038][ T8469] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 71.615218][ T8469] RIP: 0033:0x440279 [ 71.619220][ T8469] 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 [ 71.639454][ T8469] RSP: 002b:00007ffc5f1b8358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 71.648546][ T8469] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440279 [ 71.657380][ T8469] RDX: 0000000020000020 RSI: 0000000020000000 RDI: 0000000000000003 [ 71.667312][ T8469] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 71.676797][ T8469] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401a80 [ 71.685183][ T8469] R13: 0000000000401b10 R14: 0000000000000000 R15: 0000000000000000 [ 71.694303][ T8469] Kernel Offset: disabled [ 71.698895][ T8469] Rebooting in 86400 seconds..