[....] Starting enhanced syslogd: rsyslogd[ 11.087705] audit: type=1400 audit(1514647685.065:5): avc: denied { syslog } for pid=3036 comm="rsyslogd" capability=34 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 [?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 16.285363] audit: type=1400 audit(1514647690.263:6): avc: denied { map } for pid=3175 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added '10.128.0.7' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program [ 330.209574] audit: type=1400 audit(1514648004.187:7): avc: denied { map } for pid=3193 comm="syzkaller005063" path="/root/syzkaller005063797" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 330.306330] audit: type=1400 audit(1514648004.191:8): avc: denied { map_create } for pid=3201 comm="syzkaller005063" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=bpf permissive=1 [ 448.685706] kworker/1:2 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 448.697903] kworker/1:2 cpuset=/ mems_allowed=0 [ 448.702831] CPU: 1 PID: 1511 Comm: kworker/1:2 Not tainted 4.15.0-rc5+ #170 [ 448.709903] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 448.719396] Workqueue: events pcpu_balance_workfn [ 448.724241] Call Trace: [ 448.726827] dump_stack+0x194/0x257 [ 448.730429] ? arch_local_irq_restore+0x53/0x53 [ 448.735074] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 448.740238] dump_header+0x28c/0xe1e [ 448.743927] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 448.749087] ? pagefault_out_of_memory+0x152/0x152 [ 448.753984] ? check_noncircular+0x20/0x20 [ 448.758187] ? print_irqtrace_events+0x270/0x270 [ 448.762916] ? __lock_acquire+0x664/0x3e00 [ 448.767121] ? check_noncircular+0x20/0x20 [ 448.771328] ? find_held_lock+0x35/0x1d0 [ 448.775363] ? check_noncircular+0x20/0x20 [ 448.779564] ? task_will_free_mem+0x252/0xaa0 [ 448.784036] ? print_irqtrace_events+0x270/0x270 [ 448.788768] ? ___ratelimit+0x30d/0x630 [ 448.792711] ? lock_downgrade+0x980/0x980 [ 448.796830] ? lock_release+0xa40/0xa40 [ 448.800776] ? mark_held_locks+0xaf/0x100 [ 448.804928] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 448.810002] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 448.814994] ? trace_hardirqs_on+0xd/0x10 [ 448.819114] ? ___ratelimit+0x95/0x630 [ 448.822970] ? idr_get_free_cmn+0xfd0/0xfd0 [ 448.827259] ? check_noncircular+0x20/0x20 [ 448.831458] ? find_held_lock+0x138/0x1d0 [ 448.835582] oom_kill_process+0x8b5/0x14a0 [ 448.839788] ? has_ns_capability_noaudit+0x163/0x2a0 [ 448.844866] ? lock_downgrade+0x980/0x980 [ 448.848987] ? oom_evaluate_task+0x480/0x480 [ 448.853371] ? security_capable_noaudit+0x8b/0xc0 [ 448.858184] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 448.863256] ? has_capability+0x30/0x30 [ 448.867196] ? do_raw_spin_trylock+0x190/0x190 [ 448.871747] ? check_noncircular+0x20/0x20 [ 448.875954] ? has_capability_noaudit+0x24/0x30 [ 448.880591] ? oom_badness+0xd1/0x980 [ 448.884356] ? lock_release+0xa40/0xa40 [ 448.888297] ? do_try_to_free_pages+0xc53/0x1020 [ 448.893027] ? find_lock_task_mm+0x460/0x460 [ 448.897408] ? find_held_lock+0x35/0x1d0 [ 448.901442] ? out_of_memory+0xb3a/0x1220 [ 448.905557] ? lock_downgrade+0x980/0x980 [ 448.909681] ? lock_release+0xa40/0xa40 [ 448.913626] ? lock_acquire+0x1d5/0x580 [ 448.917569] ? blocking_notifier_call_chain+0x112/0x190 [ 448.922898] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 448.927806] ? oom_evaluate_task+0x284/0x480 [ 448.932187] out_of_memory+0x86d/0x1220 [ 448.936137] ? oom_killer_disable+0x310/0x310 [ 448.940597] ? mutex_trylock+0x23a/0x2d0 [ 448.944627] ? __lock_is_held+0xb6/0x140 [ 448.948656] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 448.954088] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 448.958924] ? warn_alloc+0x2b0/0x2b0 [ 448.962694] ? lock_release+0xa40/0xa40 [ 448.966644] ? print_irqtrace_events+0x270/0x270 [ 448.971373] ? lock_release+0xa40/0xa40 [ 448.975321] ? mutex_spin_on_owner+0x446/0xb50 [ 448.979877] ? __lock_acquire+0x664/0x3e00 [ 448.984081] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 448.989958] ? __lock_is_held+0xb6/0x140 [ 448.994002] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 448.999872] ? __might_sleep+0x95/0x190 [ 449.003818] __alloc_pages_nodemask+0x9fb/0xd80 [ 449.008459] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 449.013443] ? __lock_acquire+0x664/0x3e00 [ 449.017648] ? __lock_acquire+0x664/0x3e00 [ 449.021862] ? print_irqtrace_events+0x270/0x270 [ 449.026592] ? __lock_is_held+0xb6/0x140 [ 449.030628] ? find_next_bit+0x27/0x30 [ 449.034489] pcpu_populate_chunk+0x1b3/0x880 [ 449.038873] pcpu_balance_workfn+0xf3e/0x1520 [ 449.043337] ? check_noncircular+0x20/0x20 [ 449.047536] ? find_held_lock+0x35/0x1d0 [ 449.051576] ? pcpu_create_chunk+0x900/0x900 [ 449.055957] ? lock_release+0xa40/0xa40 [ 449.059901] ? check_noncircular+0x20/0x20 [ 449.064109] ? lock_acquire+0x1d5/0x580 [ 449.068048] ? lock_acquire+0x1d5/0x580 [ 449.071994] ? process_one_work+0xb01/0x1b10 [ 449.076387] ? __lock_is_held+0xb6/0x140 [ 449.080432] process_one_work+0xbbf/0x1b10 [ 449.084633] ? trace_hardirqs_on+0xd/0x10 [ 449.088756] ? pwq_dec_nr_in_flight+0x450/0x450 [ 449.093413] ? __schedule+0x8f3/0x2060 [ 449.097271] ? update_curr+0x47b/0xa60 [ 449.101132] ? check_noncircular+0x20/0x20 [ 449.105338] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 449.110324] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 449.115053] ? retint_kernel+0x10/0x10 [ 449.118931] ? lock_acquire+0x1d5/0x580 [ 449.122872] ? lock_acquire+0x1d5/0x580 [ 449.126813] ? worker_thread+0x4a3/0x1990 [ 449.130930] ? lock_downgrade+0x980/0x980 [ 449.135051] ? lock_release+0xa40/0xa40 [ 449.138991] ? retint_kernel+0x10/0x10 [ 449.142852] ? do_raw_spin_trylock+0x190/0x190 [ 449.147423] worker_thread+0x223/0x1990 [ 449.151383] ? process_one_work+0x1b10/0x1b10 [ 449.155849] ? _raw_spin_unlock_irq+0x27/0x70 [ 449.160318] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 449.165302] ? trace_hardirqs_on+0xd/0x10 [ 449.169415] ? _raw_spin_unlock_irq+0x27/0x70 [ 449.173879] ? finish_task_switch+0x1d3/0x740 [ 449.178340] ? finish_task_switch+0x1aa/0x740 [ 449.182803] ? copy_overflow+0x20/0x20 [ 449.186673] ? __schedule+0x8f3/0x2060 [ 449.190547] ? find_held_lock+0x35/0x1d0 [ 449.194582] ? find_held_lock+0x35/0x1d0 [ 449.198623] ? complete+0x62/0x80 [ 449.202053] ? __schedule+0x2060/0x2060 [ 449.205991] ? do_wait_intr_irq+0x3e0/0x3e0 [ 449.210282] ? __lockdep_init_map+0xe4/0x650 [ 449.214659] ? do_raw_spin_trylock+0x190/0x190 [ 449.219212] ? lockdep_init_map+0x9/0x10 [ 449.223247] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 449.228330] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 449.233323] ? trace_hardirqs_on+0xd/0x10 [ 449.237440] ? __kthread_parkme+0x175/0x240 [ 449.241733] kthread+0x33c/0x400 [ 449.245066] ? process_one_work+0x1b10/0x1b10 [ 449.249527] ? kthread_stop+0x7a0/0x7a0 [ 449.253471] ret_from_fork+0x24/0x30 [ 449.257270] Mem-Info: [ 449.259692] active_anon:7886 inactive_anon:33 isolated_anon:0 [ 449.259692] active_file:13 inactive_file:14 isolated_file:0 [ 449.259692] unevictable:0 dirty:0 writeback:0 unstable:0 [ 449.259692] slab_reclaimable:7188 slab_unreclaimable:84014 [ 449.259692] mapped:19 shmem:40 pagetables:341 bounce:0 [ 449.259692] free:24240 free_pcp:604 free_cma:0 [ 449.291934] Node 0 active_anon:31544kB inactive_anon:132kB active_file:52kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:76kB dirty:0kB writeback:0kB shmem:160kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 16384kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 449.318927] Node 0 DMA free:15908kB min:160kB low:200kB high:240kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 449.345049] lowmem_reserve[]: 0 2879 6391 6391 [ 449.349646] Node 0 DMA32 free:44380kB min:30368kB low:37960kB high:45552kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2950880kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:896kB local_pcp:120kB free_cma:0kB [ 449.377156] lowmem_reserve[]: 0 0 3512 3512 [ 449.381492] Node 0 Normal free:36672kB min:37048kB low:46308kB high:55568kB active_anon:31544kB inactive_anon:132kB active_file:56kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3596704kB mlocked:0kB kernel_stack:2880kB pagetables:1364kB bounce:0kB free_pcp:1520kB local_pcp:760kB free_cma:0kB [ 449.410411] lowmem_reserve[]: 0 0 0 0 [ 449.414259] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 449.427971] Node 0 DMA32: 3*4kB (M) 2*8kB (M) 4*16kB (M) 0*32kB 2*64kB (UM) 3*128kB (M) 5*256kB (UM) 3*512kB (M) 2*1024kB (M) 3*2048kB (UM) 8*4096kB (M) = 44380kB [ 449.442837] Node 0 Normal: 556*4kB (ME) 424*8kB (ME) 273*16kB (M) 152*32kB (UM) 45*64kB (M) 28*128kB (M) 28*256kB (UM) 16*512kB (UM) 0*1024kB 0*2048kB 0*4096kB = 36672kB [ 449.458174] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 449.466747] 84 total pagecache pages [ 449.470468] 0 pages in swap cache [ 449.473919] Swap cache stats: add 0, delete 0, find 0/0 [ 449.479275] Free swap = 0kB [ 449.482296] Total swap = 0kB [ 449.485307] 1965979 pages RAM [ 449.488413] 0 pages HighMem/MovableOnly [ 449.492395] 325106 pages reserved [ 449.495942] Unreclaimable slab info: [ 449.499719] Name Used Total [ 449.505297] hashtab_node 118KB 119KB [ 449.510664] ebitmap_node 382KB 385KB [ 449.516122] avtab_node 1012KB 1013KB [ 449.521484] TIPC 1KB 7KB [ 449.526839] SCTPv6 2KB 4KB [ 449.532213] DCCPv6 2KB 7KB [ 449.537577] DCCP 2KB 6KB [ 449.542945] fib6_nodes 0KB 4KB [ 449.548311] ip6_dst_cache 6KB 7KB [ 449.553672] RAWv6 9KB 13KB [ 449.559030] UDPv6 12KB 14KB [ 449.564400] TCPv6 2KB 5KB [ 449.569870] sd_ext_cdb 0KB 3KB [ 449.575230] scsi_sense_cache 77KB 100KB [ 449.580602] virtio_scsi_cmd 16KB 16KB [ 449.585985] sgpool-128 8KB 8KB [ 449.591346] sgpool-64 4KB 6KB [ 449.596700] sgpool-32 51KB 55KB [ 449.602068] sgpool-16 26KB 30KB [ 449.607430] sgpool-8 165KB 176KB [ 449.612796] cfq_io_cq 15KB 19KB [ 449.618169] cfq_queue 24KB 27KB [ 449.623533] mqueue_inode_cache 1KB 7KB [ 449.628974] nfs_commit_data 3KB 7KB [ 449.634343] nfs_write_data 34KB 37KB [ 449.639715] jbd2_inode 1KB 3KB [ 449.645072] ext4_system_zone 0KB 3KB [ 449.650450] bio-1 1KB 3KB [ 449.655818] rpc_buffers 17KB 19KB [ 449.661173] rpc_tasks 2KB 3KB [ 449.667516] UNIX 1473KB 1477KB [ 449.672878] tcp_bind_bucket 0KB 4KB [ 449.678251] ip_fib_trie 0KB 3KB [ 449.683617] ip_fib_alias 0KB 3KB [ 449.688974] ip_dst_cache 3KB 8KB [ 449.694343] RAW 5KB 7KB [ 449.699703] UDP 29KB 31KB [ 449.705060] TCP 7KB 7KB [ 449.710430] hugetlbfs_inode_cache 1KB 7KB [ 449.716157] eventpoll_pwq 10KB 15KB [ 449.721516] eventpoll_epi 19KB 27KB [ 449.726870] inotify_inode_mark 4KB 7KB [ 449.732323] request_queue 31KB 39KB [ 449.737687] blkdev_ioc 21KB 23KB [ 449.743040] bio-0 274KB 277KB [ 449.748407] biovec-(1<<(21-12)) 511KB 511KB [ 449.753947] biovec-64 94KB 102KB [ 449.759303] biovec-16 12KB 18KB [ 449.764676] bio_integrity_payload 0KB 4KB [ 449.770409] khugepaged_mm_slot 0KB 3KB [ 449.775864] uid_cache 0KB 3KB [ 449.781220] dmaengine-unmap-2 0KB 3KB [ 449.786589] audit_buffer 0KB 3KB [ 449.791960] skbuff_fclone_cache 126KB 131KB [ 449.797494] skbuff_head_cache 1666KB 1680KB [ 449.802856] configfs_dir_cache 0KB 4KB [ 449.808316] file_lock_cache 153KB 154KB [ 449.813685] file_lock_ctx 1KB 3KB [ 449.819040] fsnotify_mark_connector 2KB 3KB [ 449.824918] shmem_inode_cache 876KB 879KB [ 449.830292] task_delay_info 277KB 407KB [ 449.835686] sigqueue 316KB 322KB [ 449.841050] kernfs_node_cache 1857KB 1862KB [ 449.846429] mnt_cache 14KB 20KB [ 449.851792] filp 8308KB 8321KB [ 449.857158] names_cache 115251KB 115289KB [ 449.862540] avc_node 37KB 39KB [ 449.867906] selinux_file_security 414KB 418KB [ 449.873611] selinux_inode_security 1896KB 1900KB [ 449.879404] key_jar 3KB 7KB [ 449.884758] nsproxy 0KB 3KB [ 449.890127] vm_area_struct 17063KB 17073KB [ 449.895486] mm_struct 3978KB 3984KB [ 449.900840] fs_cache 369KB 472KB [ 449.906206] files_cache 1384KB 1642KB [ 449.911570] signal_cache 2218KB 2623KB [ 449.916924] sighand_cache 201KB 256KB [ 449.922293] task_struct 9469KB 9469KB [ 449.927658] cred_jar 2207KB 2220KB [ 449.933034] anon_vma_chain 6993KB 7000KB [ 449.938402] anon_vma 144KB 288KB [ 449.943766] pid 193KB 288KB [ 449.949122] Acpi-Operand 106KB 170KB [ 449.954499] Acpi-Namespace 19KB 23KB [ 449.959862] numa_policy 0KB 3KB [ 449.965221] debug_objects_cache 445KB 446KB [ 449.970751] trace_event_file 144KB 147KB [ 449.976122] ftrace_event_field 254KB 255KB [ 449.981572] pool_workqueue 21KB 24KB [ 449.986933] page->ptl 2799KB 2802KB [ 449.992326] kmalloc-262144 1032KB 1032KB [ 449.997687] kmalloc-131072 650KB 650KB [ 450.003043] kmalloc-65536 264KB 264KB [ 450.008414] kmalloc-32768 495KB 495KB [ 450.013776] kmalloc-16384 148KB 148KB [ 450.019132] kmalloc-8192 420KB 420KB [ 450.024500] kmalloc-4096 8763KB 8801KB [ 450.029862] kmalloc-2048 2996KB 2996KB [ 450.035217] kmalloc-1024 3393KB 3409KB [ 450.040589] kmalloc-512 2960KB 3225KB [ 450.045954] kmalloc-256 1601KB 1920KB [ 450.051309] kmalloc-128 392KB 507KB [ 450.056675] kmalloc-96 1924KB 1924KB [ 450.062049] kmalloc-64 2312KB 2312KB [ 450.067413] kmalloc-32 2291KB 2291KB [ 450.072829] kmalloc-192 804KB 804KB [ 450.078199] kmem_cache 97KB 101KB [ 450.083561] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 450.092255] [ 1628] 0 1628 5385 172 90112 0 -1000 udevd [ 450.100567] [ 2902] 0 2902 2493 572 53248 0 0 dhclient [ 450.108975] [ 3036] 0 3036 14265 173 114688 0 0 rsyslogd [ 450.117382] [ 3091] 0 3091 4725 51 86016 0 0 cron [ 450.125438] [ 3115] 0 3115 3735 44 65536 0 0 mcstransd [ 450.133934] [ 3119] 0 3119 12927 1227 135168 0 0 restorecond [ 450.142618] [ 3128] 0 3128 12490 153 139264 0 -1000 sshd [ 450.150685] [ 3161] 0 3161 3694 40 73728 0 0 getty [ 450.158829] [ 3162] 0 3162 3694 40 73728 0 0 getty [ 450.166972] [ 3163] 0 3163 3694 41 73728 0 0 getty [ 450.175119] [ 3164] 0 3164 3694 41 73728 0 0 getty [ 450.183276] [ 3165] 0 3165 3694 41 77824 0 0 getty [ 450.191425] [ 3166] 0 3166 3694 42 73728 0 0 getty [ 450.199568] [ 3167] 0 3167 3649 39 69632 0 0 getty [ 450.207713] [ 3170] 0 3170 5681 455 90112 0 -1000 udevd [ 450.215857] [ 3171] 0 3171 5681 455 90112 0 -1000 udevd [ 450.224007] [ 3191] 0 3191 17821 199 184320 0 0 sshd [ 450.232119] [ 3193] 0 3193 280 1 32768 0 0 syzkaller005063 [ 450.241143] [ 3194] 0 3194 4371 524 36864 0 0 syzkaller005063 [ 450.250177] [ 3195] 0 3195 4371 524 36864 0 0 syzkaller005063 [ 450.259200] [ 3196] 0 3196 4371 524 36864 0 0 syzkaller005063 [ 450.268231] [ 3197] 0 3197 4371 524 36864 0 0 syzkaller005063 [ 450.277251] [ 3198] 0 3198 4371 524 36864 0 0 syzkaller005063 [ 450.286281] [ 3199] 0 3199 4371 524 36864 0 0 syzkaller005063 [ 450.295303] [ 3200] 0 3200 4371 524 36864 0 0 syzkaller005063 [ 450.304334] [ 3201] 0 3201 4371 524 36864 0 0 syzkaller005063 [ 450.313353] Out of memory: Kill process 3119 (restorecond) score 0 or sacrifice child [ 450.321708] Killed process 3119 (restorecond) total-vm:51708kB, anon-rss:4908kB, file-rss:0kB, shmem-rss:0kB [ 450.574911] init invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=0 [ 450.586030] init cpuset=/ mems_allowed=0 [ 450.590211] CPU: 0 PID: 1 Comm: init Not tainted 4.15.0-rc5+ #170 [ 450.596406] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 450.605726] Call Trace: [ 450.608292] dump_stack+0x194/0x257 [ 450.611904] ? arch_local_irq_restore+0x53/0x53 [ 450.616559] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 450.621736] dump_header+0x28c/0xe1e [ 450.625427] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 450.630601] ? pagefault_out_of_memory+0x152/0x152 [ 450.635510] ? check_noncircular+0x20/0x20 [ 450.639718] ? print_irqtrace_events+0x270/0x270 [ 450.644461] ? __lock_acquire+0x664/0x3e00 [ 450.648678] ? check_noncircular+0x20/0x20 [ 450.652890] ? find_held_lock+0x35/0x1d0 [ 450.656926] ? check_noncircular+0x20/0x20 [ 450.661133] ? task_will_free_mem+0x252/0xaa0 [ 450.665605] ? print_irqtrace_events+0x270/0x270 [ 450.670356] ? ___ratelimit+0x30d/0x630 [ 450.674318] ? lock_downgrade+0x980/0x980 [ 450.678460] ? lock_release+0xa40/0xa40 [ 450.682432] ? mark_held_locks+0xaf/0x100 [ 450.686570] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 450.691653] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 450.696646] ? trace_hardirqs_on+0xd/0x10 [ 450.700772] ? ___ratelimit+0x95/0x630 [ 450.704641] ? idr_get_free_cmn+0xfd0/0xfd0 [ 450.708936] ? check_noncircular+0x20/0x20 [ 450.713141] ? find_held_lock+0x138/0x1d0 [ 450.717271] oom_kill_process+0x8b5/0x14a0 [ 450.721571] ? has_ns_capability_noaudit+0x163/0x2a0 [ 450.726656] ? lock_downgrade+0x980/0x980 [ 450.730783] ? oom_evaluate_task+0x480/0x480 [ 450.735182] ? security_capable_noaudit+0x8b/0xc0 [ 450.740005] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 450.745115] ? has_capability+0x30/0x30 [ 450.749061] ? do_raw_spin_trylock+0x190/0x190 [ 450.753617] ? check_noncircular+0x20/0x20 [ 450.757830] ? has_capability_noaudit+0x24/0x30 [ 450.762481] ? oom_badness+0xd1/0x980 [ 450.766267] ? lock_release+0xa40/0xa40 [ 450.770224] ? do_try_to_free_pages+0xc53/0x1020 [ 450.774964] ? find_lock_task_mm+0x460/0x460 [ 450.779349] ? find_held_lock+0x35/0x1d0 [ 450.783391] ? out_of_memory+0xb3a/0x1220 [ 450.787512] ? lock_downgrade+0x980/0x980 [ 450.791637] ? lock_release+0xa40/0xa40 [ 450.795583] ? lock_acquire+0x1d5/0x580 [ 450.799534] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 450.804457] ? oom_evaluate_task+0x284/0x480 [ 450.808851] out_of_memory+0x86d/0x1220 [ 450.812799] ? trace_hardirqs_on+0xd/0x10 [ 450.816928] ? oom_killer_disable+0x310/0x310 [ 450.821394] ? mutex_trylock+0x23a/0x2d0 [ 450.825429] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 450.830852] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 450.836719] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 450.841542] ? trace_hardirqs_on+0xd/0x10 [ 450.845678] ? warn_alloc+0x2b0/0x2b0 [ 450.849451] ? lock_downgrade+0x980/0x980 [ 450.853581] ? radix_tree_lookup_slot+0x99/0xe0 [ 450.858253] ? find_get_entry+0x53c/0x9e0 [ 450.862422] ? __lock_acquire+0x664/0x3e00 [ 450.866670] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 450.872550] ? __might_sleep+0x95/0x190 [ 450.876517] __alloc_pages_nodemask+0x9fb/0xd80 [ 450.881170] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 450.886168] ? add_to_page_cache_lru+0x510/0x510 [ 450.890908] ? check_noncircular+0x20/0x20 [ 450.895116] ? check_noncircular+0x20/0x20 [ 450.899328] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 450.904101] alloc_pages_current+0xb6/0x1e0 [ 450.908416] __page_cache_alloc+0x334/0x500 [ 450.912718] ? rcu_read_lock_held+0xa9/0xc0 [ 450.917015] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 450.924386] filemap_fault+0xefc/0x1c20 [ 450.928346] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 450.933876] ? __lock_page_or_retry+0x4f0/0x4f0 [ 450.938538] ? filemap_map_pages+0x942/0x15d0 [ 450.943036] ? find_get_entries_tag+0xeb0/0xeb0 [ 450.947684] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 450.952849] ? check_noncircular+0x20/0x20 [ 450.957061] ? print_irqtrace_events+0x270/0x270 [ 450.961793] ? print_irqtrace_events+0x270/0x270 [ 450.966558] ? lock_acquire+0x1d5/0x580 [ 450.970512] ? lock_acquire+0x1d5/0x580 [ 450.974472] ? ext4_filemap_fault+0x7a/0xad [ 450.978788] ? __lock_acquire+0x664/0x3e00 [ 450.982999] ? lock_release+0xa40/0xa40 [ 450.986943] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 450.992801] ? rcu_note_context_switch+0x710/0x710 [ 450.997705] ? __might_sleep+0x95/0x190 [ 451.001655] ? down_read+0x96/0x150 [ 451.005251] ? ext4_filemap_fault+0x7a/0xad [ 451.009544] ? __down_interruptible+0x6b0/0x6b0 [ 451.014210] ext4_filemap_fault+0x82/0xad [ 451.018344] __do_fault+0xeb/0x30f [ 451.021867] ? pte_offset_kernel+0xc7/0xc7 [ 451.026090] ? do_raw_spin_trylock+0x190/0x190 [ 451.030660] ? _raw_spin_unlock_irq+0x27/0x70 [ 451.035130] ? check_noncircular+0x20/0x20 [ 451.039341] __handle_mm_fault+0x1d8f/0x3ce0 [ 451.043726] ? __pmd_alloc+0x4e0/0x4e0 [ 451.047600] ? find_held_lock+0x35/0x1d0 [ 451.051641] ? handle_mm_fault+0x248/0x8d0 [ 451.055847] ? lock_downgrade+0x980/0x980 [ 451.059987] handle_mm_fault+0x334/0x8d0 [ 451.064025] ? down_read_trylock+0xdb/0x170 [ 451.068327] ? __do_page_fault+0x32d/0xc90 [ 451.072547] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 451.077108] ? vmacache_find+0x5f/0x280 [ 451.081061] ? find_vma+0x30/0x150 [ 451.084584] __do_page_fault+0x5c9/0xc90 [ 451.088639] ? mm_fault_error+0x2c0/0x2c0 [ 451.092759] ? find_held_lock+0x35/0x1d0 [ 451.096800] do_page_fault+0xee/0x720 [ 451.100583] ? __do_page_fault+0xc90/0xc90 [ 451.104799] ? lock_release+0xa40/0xa40 [ 451.108744] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 451.114610] ? syscall_return_slowpath+0x550/0x550 [ 451.119522] ? syscall_return_slowpath+0x2ad/0x550 [ 451.124440] ? retint_user+0x18/0x18 [ 451.128205] ? page_fault+0x36/0x60 [ 451.131813] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 451.136640] ? page_fault+0x36/0x60 [ 451.140255] page_fault+0x4c/0x60 [ 451.143686] RIP: 0033:0x7fbb64df3c50 [ 451.147367] RSP: 002b:00007ffc1061d858 EFLAGS: 00010206 [ 451.152699] RAX: 0000000001e28f40 RBX: 00007ffc1061da90 RCX: 0000000001e28c00 [ 451.159940] RDX: 00007ffc1061da90 RSI: 0000000000407545 RDI: 0000000000000001 [ 451.167181] RBP: 0000000000000000 R08: 0000000001e28b50 R09: 0000000000000001 [ 451.174430] R10: 0000000000000000 R11: 0000000000000202 R12: 00000000ffffffff [ 451.181679] R13: 00007ffc1061df90 R14: 0000000000000000 R15: 0000000000000000 [ 451.189060] Mem-Info: [ 451.192141] active_anon:6657 inactive_anon:33 isolated_anon:0 [ 451.192141] active_file:14 inactive_file:13 isolated_file:0 [ 451.192141] unevictable:0 dirty:0 writeback:0 unstable:0 [ 451.192141] slab_reclaimable:7188 slab_unreclaimable:84024 [ 451.192141] mapped:2 shmem:40 pagetables:314 bounce:0 [ 451.192141] free:24304 free_pcp:44 free_cma:0 [ 451.224645] Node 0 active_anon:26628kB inactive_anon:132kB active_file:108kB inactive_file:100kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:160kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 16384kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 451.251665] Node 0 DMA free:15908kB min:160kB low:200kB high:240kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 451.277814] lowmem_reserve[]: 0 2879 6391 6391 [ 451.282424] Node 0 DMA32 free:44252kB min:30368kB low:37960kB high:45552kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2950880kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 451.309607] lowmem_reserve[]: 0 0 3512 3512 [ 451.313969] Node 0 Normal free:36896kB min:37048kB low:46308kB high:55568kB active_anon:26628kB inactive_anon:132kB active_file:52kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3596704kB mlocked:0kB kernel_stack:2912kB pagetables:1256kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 451.342866] lowmem_reserve[]: 0 0 0 0 [ 451.346673] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 451.360283] Node 0 DMA32: 3*4kB (UM) 2*8kB (UM) 4*16kB (UM) 2*32kB (UM) 3*64kB (UM) 3*128kB (UM) 4*256kB (UM) 3*512kB (M) 4*1024kB (UM) 2*2048kB (M) 8*4096kB (M) = 44252kB [ 451.375844] Node 0 Normal: 502*4kB (UME) 393*8kB (UME) 268*16kB (UM) 180*32kB (UM) 79*64kB (UM) 36*128kB (UM) 23*256kB (M) 12*512kB (UM) 0*1024kB 0*2048kB 0*4096kB = 36896kB [ 451.391510] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 451.400094] 67 total pagecache pages [ 451.403809] 0 pages in swap cache [ 451.407251] Swap cache stats: add 0, delete 0, find 0/0 [ 451.412617] Free swap = 0kB [ 451.415635] Total swap = 0kB [ 451.418651] 1965979 pages RAM [ 451.421761] 0 pages HighMem/MovableOnly [ 451.425722] 325106 pages reserved [ 451.429233] Unreclaimable slab info: [ 451.432978] Name Used Total [ 451.438557] hashtab_node 118KB 119KB [ 451.443923] ebitmap_node 382KB 385KB [ 451.449278] avtab_node 1012KB 1013KB [ 451.454645] TIPC 1KB 7KB [ 451.460043] SCTPv6 2KB 4KB [ 451.465411] DCCPv6 2KB 7KB [ 451.470787] DCCP 2KB 6KB [ 451.477073] fib6_nodes 0KB 4KB [ 451.482439] ip6_dst_cache 6KB 7KB [ 451.487798] RAWv6 9KB 13KB [ 451.493171] UDPv6 12KB 14KB [ 451.498538] TCPv6 2KB 5KB [ 451.503905] sd_ext_cdb 0KB 3KB [ 451.509272] scsi_sense_cache 88KB 100KB [ 451.514642] virtio_scsi_cmd 16KB 16KB [ 451.520006] sgpool-128 8KB 8KB [ 451.525394] sgpool-64 4KB 6KB [ 451.530765] sgpool-32 63KB 63KB [ 451.536140] sgpool-16 33KB 33KB [ 451.541503] sgpool-8 180KB 180KB [ 451.546875] cfq_io_cq 18KB 19KB [ 451.552257] cfq_queue 27KB 27KB [ 451.557621] mqueue_inode_cache 1KB 7KB [ 451.563078] nfs_commit_data 3KB 7KB [ 451.568445] nfs_write_data 34KB 37KB [ 451.573799] jbd2_inode 1KB 3KB [ 451.579174] ext4_system_zone 0KB 3KB [ 451.584532] bio-1 1KB 3KB [ 451.589894] rpc_buffers 17KB 19KB [ 451.595250] rpc_tasks 2KB 3KB [ 451.600625] UNIX 1464KB 1477KB [ 451.605988] tcp_bind_bucket 0KB 4KB [ 451.611765] ip_fib_trie 0KB 3KB [ 451.617139] ip_fib_alias 0KB 3KB [ 451.622500] ip_dst_cache 3KB 8KB [ 451.627856] RAW 5KB 7KB [ 451.633217] UDP 29KB 31KB [ 451.638573] TCP 7KB 7KB [ 451.643932] hugetlbfs_inode_cache 1KB 7KB [ 451.649637] eventpoll_pwq 10KB 15KB [ 451.655044] eventpoll_epi 19KB 27KB [ 451.660404] inotify_inode_mark 4KB 7KB [ 451.665855] request_queue 31KB 39KB [ 451.671220] blkdev_ioc 23KB 23KB [ 451.676589] bio-0 288KB 288KB [ 451.681950] biovec-(1<<(21-12)) 511KB 511KB [ 451.687502] biovec-64 126KB 126KB [ 451.692869] biovec-16 17KB 18KB [ 451.698240] bio_integrity_payload 0KB 4KB [ 451.703949] khugepaged_mm_slot 0KB 3KB [ 451.709392] uid_cache 0KB 3KB [ 451.714758] dmaengine-unmap-2 0KB 3KB [ 451.720137] audit_buffer 0KB 3KB [ 451.725500] skbuff_fclone_cache 126KB 131KB [ 451.731058] skbuff_head_cache 1662KB 1680KB [ 451.736418] configfs_dir_cache 0KB 4KB [ 451.741864] file_lock_cache 153KB 154KB [ 451.747700] file_lock_ctx 1KB 3KB [ 451.753059] fsnotify_mark_connector 2KB 3KB [ 451.758949] shmem_inode_cache 876KB 879KB [ 451.764311] task_delay_info 280KB 407KB [ 451.769671] sigqueue 319KB 322KB [ 451.775048] kernfs_node_cache 1857KB 1862KB [ 451.780416] mnt_cache 14KB 20KB [ 451.785803] filp 8308KB 8321KB [ 451.791186] names_cache 115251KB 115289KB [ 451.796558] avc_node 37KB 39KB [ 451.801933] selinux_file_security 413KB 418KB [ 451.807663] selinux_inode_security 1895KB 1900KB [ 451.813490] key_jar 3KB 7KB [ 451.818856] nsproxy 0KB 3KB [ 451.824231] vm_area_struct 17061KB 17073KB [ 451.829595] mm_struct 3970KB 3984KB [ 451.835748] fs_cache 369KB 472KB [ 451.841134] files_cache 1383KB 1642KB [ 451.846503] signal_cache 2235KB 2623KB [ 451.851880] sighand_cache 228KB 256KB [ 451.857260] task_struct 9481KB 9481KB [ 451.862635] cred_jar 2205KB 2220KB [ 451.868038] anon_vma_chain 6991KB 7000KB [ 451.873404] anon_vma 144KB 288KB [ 451.878780] pid 195KB 288KB [ 451.884612] Acpi-Operand 106KB 170KB [ 451.889978] Acpi-Namespace 19KB 23KB [ 451.895350] numa_policy 0KB 3KB [ 451.900714] debug_objects_cache 444KB 446KB [ 451.906249] trace_event_file 144KB 147KB [ 451.911618] ftrace_event_field 254KB 255KB [ 451.917079] pool_workqueue 21KB 24KB [ 451.922444] page->ptl 2797KB 2802KB [ 451.927834] kmalloc-262144 1032KB 1032KB [ 451.933208] kmalloc-131072 650KB 650KB [ 451.938570] kmalloc-65536 264KB 264KB [ 451.943940] kmalloc-32768 495KB 495KB [ 451.949318] kmalloc-16384 148KB 148KB [ 451.954677] kmalloc-8192 420KB 420KB [ 451.960044] kmalloc-4096 8755KB 8793KB [ 451.965401] kmalloc-2048 2996KB 2996KB [ 451.970756] kmalloc-1024 3417KB 3417KB [ 451.976124] kmalloc-512 2953KB 3221KB [ 451.981481] kmalloc-256 1601KB 1920KB [ 451.986836] kmalloc-128 391KB 507KB [ 451.992207] kmalloc-96 1928KB 1928KB [ 451.997568] kmalloc-64 2312KB 2312KB [ 452.002933] kmalloc-32 2291KB 2291KB [ 452.008363] kmalloc-192 804KB 804KB [ 452.013732] kmem_cache 97KB 101KB [ 452.019878] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 452.028544] [ 1628] 0 1628 5385 172 90112 0 -1000 udevd [ 452.036749] [ 2902] 0 2902 2493 572 53248 0 0 dhclient [ 452.045166] [ 3036] 0 3036 14265 172 114688 0 0 rsyslogd [ 452.053611] [ 3091] 0 3091 4725 51 86016 0 0 cron [ 452.061701] [ 3115] 0 3115 3735 44 65536 0 0 mcstransd [ 452.070217] [ 3128] 0 3128 12490 153 139264 0 -1000 sshd [ 452.078278] [ 3161] 0 3161 3694 40 73728 0 0 getty [ 452.086436] [ 3162] 0 3162 3694 40 73728 0 0 getty [ 452.094599] [ 3163] 0 3163 3694 41 73728 0 0 getty [ 452.102762] [ 3164] 0 3164 3694 41 73728 0 0 getty [ 452.110925] [ 3165] 0 3165 3694 41 77824 0 0 getty [ 452.119089] [ 3166] 0 3166 3694 42 73728 0 0 getty [ 452.127237] [ 3167] 0 3167 3649 39 69632 0 0 getty [ 452.135394] [ 3170] 0 3170 5681 455 90112 0 -1000 udevd [ 452.143557] [ 3171] 0 3171 5681 455 90112 0 -1000 udevd [ 452.151718] [ 3191] 0 3191 17821 199 184320 0 0 sshd [ 452.159816] [ 3193] 0 3193 280 1 32768 0 0 syzkaller005063 [ 452.168844] [ 3194] 0 3194 4371 524 36864 0 0 syzkaller005063 [ 452.177870] [ 3195] 0 3195 4371 524 36864 0 0 syzkaller005063 [ 452.186897] [ 3196] 0 3196 4371 524 36864 0 0 syzkaller005063 [ 452.195924] [ 3197] 0 3197 4371 524 36864 0 0 syzkaller005063 [ 452.204950] [ 3198] 0 3198 4371 524 36864 0 0 syzkaller005063 [ 452.213983] [ 3199] 0 3199 4371 524 36864 0 0 syzkaller005063 [ 452.223041] [ 3200] 0 3200 4371 524 36864 0 0 syzkaller005063 [ 452.232079] [ 3201] 0 3201 4371 524 36864 0 0 syzkaller005063 [ 452.241093] Out of memory: Kill process 2902 (dhclient) score 0 or sacrifice child [ 452.249331] Killed process 2902 (dhclient) total-vm:9972kB, anon-rss:2288kB, file-rss:0kB, shmem-rss:0kB [ 452.476205] init invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=0 [ 452.487297] init cpuset=/ mems_allowed=0 [ 452.491409] CPU: 1 PID: 1 Comm: init Not tainted 4.15.0-rc5+ #170 [ 452.497629] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 452.506969] Call Trace: [ 452.509551] dump_stack+0x194/0x257 [ 452.513168] ? arch_local_irq_restore+0x53/0x53 [ 452.517852] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 452.523039] dump_header+0x28c/0xe1e [ 452.526749] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 452.531930] ? pagefault_out_of_memory+0x152/0x152 [ 452.536843] ? check_noncircular+0x20/0x20 [ 452.541125] ? print_irqtrace_events+0x270/0x270 [ 452.545874] ? __lock_acquire+0x664/0x3e00 [ 452.550098] ? check_noncircular+0x20/0x20 [ 452.554330] ? find_held_lock+0x35/0x1d0 [ 452.558386] ? check_noncircular+0x20/0x20 [ 452.562606] ? task_will_free_mem+0x252/0xaa0 [ 452.567095] ? print_irqtrace_events+0x270/0x270 [ 452.571848] ? ___ratelimit+0x30d/0x630 [ 452.575807] ? lock_downgrade+0x980/0x980 [ 452.579946] ? lock_release+0xa40/0xa40 [ 452.583916] ? mark_held_locks+0xaf/0x100 [ 452.588050] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 452.593138] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 452.598142] ? trace_hardirqs_on+0xd/0x10 [ 452.602280] ? ___ratelimit+0x95/0x630 [ 452.606164] ? idr_get_free_cmn+0xfd0/0xfd0 [ 452.610473] ? check_noncircular+0x20/0x20 [ 452.614694] ? find_held_lock+0x138/0x1d0 [ 452.618843] oom_kill_process+0x8b5/0x14a0 [ 452.623068] ? has_ns_capability_noaudit+0x163/0x2a0 [ 452.628160] ? lock_downgrade+0x980/0x980 [ 452.632300] ? oom_evaluate_task+0x480/0x480 [ 452.636709] ? security_capable_noaudit+0x8b/0xc0 [ 452.641543] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 452.646631] ? has_capability+0x30/0x30 [ 452.650588] ? do_raw_spin_trylock+0x190/0x190 [ 452.655155] ? check_noncircular+0x20/0x20 [ 452.659384] ? has_capability_noaudit+0x24/0x30 [ 452.664048] ? oom_badness+0xd1/0x980 [ 452.667833] ? lock_release+0xa40/0xa40 [ 452.671792] ? do_try_to_free_pages+0xc53/0x1020 [ 452.676539] ? find_lock_task_mm+0x460/0x460 [ 452.680940] ? find_held_lock+0x35/0x1d0 [ 452.684996] ? out_of_memory+0xb3a/0x1220 [ 452.689131] ? lock_downgrade+0x980/0x980 [ 452.693269] ? lock_release+0xa40/0xa40 [ 452.697224] ? lock_acquire+0x1d5/0x580 [ 452.701183] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 452.706108] ? oom_evaluate_task+0x284/0x480 [ 452.710510] out_of_memory+0x86d/0x1220 [ 452.714463] ? trace_hardirqs_on+0xd/0x10 [ 452.718609] ? oom_killer_disable+0x310/0x310 [ 452.723089] ? mutex_trylock+0x23a/0x2d0 [ 452.727139] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 452.732569] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 452.738462] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 452.743302] ? trace_hardirqs_on+0xd/0x10 [ 452.747471] ? warn_alloc+0x2b0/0x2b0 [ 452.751257] ? lock_downgrade+0x980/0x980 [ 452.755404] ? radix_tree_lookup_slot+0x99/0xe0 [ 452.760085] ? find_get_entry+0x53c/0x9e0 [ 452.764254] ? __lock_acquire+0x664/0x3e00 [ 452.768524] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 452.774412] ? __might_sleep+0x95/0x190 [ 452.778381] __alloc_pages_nodemask+0x9fb/0xd80 [ 452.783045] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 452.788053] ? add_to_page_cache_lru+0x510/0x510 [ 452.792805] ? check_noncircular+0x20/0x20 [ 452.797023] ? check_noncircular+0x20/0x20 [ 452.801240] ? check_noncircular+0x20/0x20 [ 452.805473] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 452.810245] alloc_pages_current+0xb6/0x1e0 [ 452.814559] __page_cache_alloc+0x334/0x500 [ 452.818863] ? rcu_read_lock_held+0xa9/0xc0 [ 452.823172] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 452.830533] filemap_fault+0xefc/0x1c20 [ 452.834490] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 452.839683] ? __lock_page_or_retry+0x4f0/0x4f0 [ 452.844348] ? filemap_map_pages+0x942/0x15d0 [ 452.848826] ? __save_stack_trace+0x7e/0xd0 [ 452.853155] ? find_get_entries_tag+0xeb0/0xeb0 [ 452.857820] ? check_noncircular+0x20/0x20 [ 452.862036] ? exit_to_usermode_loop+0x214/0x310 [ 452.866769] ? prepare_exit_to_usermode+0x2e1/0x340 [ 452.871772] ? print_irqtrace_events+0x270/0x270 [ 452.876509] ? print_irqtrace_events+0x270/0x270 [ 452.881258] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 452.886446] ? lock_acquire+0x1d5/0x580 [ 452.890402] ? lock_acquire+0x1d5/0x580 [ 452.894360] ? ext4_filemap_fault+0x7a/0xad [ 452.898664] ? __lock_acquire+0x664/0x3e00 [ 452.902884] ? lock_release+0xa40/0xa40 [ 452.906840] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 452.912712] ? rcu_note_context_switch+0x710/0x710 [ 452.917630] ? __might_sleep+0x95/0x190 [ 452.921591] ? down_read+0x96/0x150 [ 452.925200] ? ext4_filemap_fault+0x7a/0xad [ 452.929503] ? __down_interruptible+0x6b0/0x6b0 [ 452.934175] ext4_filemap_fault+0x82/0xad [ 452.938310] __do_fault+0xeb/0x30f [ 452.941836] ? pte_offset_kernel+0xc7/0xc7 [ 452.946059] ? do_raw_spin_trylock+0x190/0x190 [ 452.950632] ? check_noncircular+0x20/0x20 [ 452.954859] __handle_mm_fault+0x1d8f/0x3ce0 [ 452.959259] ? __pmd_alloc+0x4e0/0x4e0 [ 452.963126] ? do_raw_spin_trylock+0x190/0x190 [ 452.967700] ? find_held_lock+0x35/0x1d0 [ 452.971759] ? handle_mm_fault+0x248/0x8d0 [ 452.975979] ? lock_downgrade+0x980/0x980 [ 452.980150] handle_mm_fault+0x334/0x8d0 [ 452.984190] ? down_read_trylock+0xdb/0x170 [ 452.988495] ? __do_page_fault+0x32d/0xc90 [ 452.992720] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 452.997281] ? vmacache_find+0x5f/0x280 [ 453.001248] ? find_vma+0x30/0x150 [ 453.004778] __do_page_fault+0x5c9/0xc90 [ 453.008836] ? mm_fault_error+0x2c0/0x2c0 [ 453.012974] ? find_held_lock+0x35/0x1d0 [ 453.017022] ? exit_to_usermode_loop+0x8c/0x310 [ 453.021678] do_page_fault+0xee/0x720 [ 453.025461] ? trace_hardirqs_off+0xd/0x10 [ 453.029677] ? __do_page_fault+0xc90/0xc90 [ 453.033897] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 453.039416] ? syscall_return_slowpath+0x550/0x550 [ 453.044330] ? syscall_return_slowpath+0x2ad/0x550 [ 453.049252] ? retint_user+0x18/0x18 [ 453.052950] ? page_fault+0x36/0x60 [ 453.056559] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 453.061396] ? page_fault+0x36/0x60 [ 453.065012] page_fault+0x4c/0x60 [ 453.068448] RIP: 0033:0x7fbb64dcfa20 [ 453.072137] RSP: 002b:00007ffc1061d288 EFLAGS: 00010207 [ 453.077484] RAX: 00007fbb657246a0 RBX: 00007fbb657246a0 RCX: 0000000001e28c00 [ 453.084733] RDX: 0000000000000001 RSI: 00007ffc1061d29c RDI: 00000000ffffffff [ 453.091981] RBP: 00007ffc1061d29c R08: 0000000001e28b50 R09: 0000000000000001 [ 453.099229] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004 [ 453.106479] R13: 00007ffc1061df90 R14: 0000000000000000 R15: 0000000000000000 [ 453.113823] Mem-Info: [ 453.116609] active_anon:6085 inactive_anon:33 isolated_anon:0 [ 453.116609] active_file:14 inactive_file:13 isolated_file:0 [ 453.116609] unevictable:0 dirty:0 writeback:0 unstable:0 [ 453.116609] slab_reclaimable:7188 slab_unreclaimable:83621 [ 453.116609] mapped:2 shmem:40 pagetables:307 bounce:0 [ 453.116609] free:24371 free_pcp:15 free_cma:0 [ 453.148742] Node 0 active_anon:24340kB inactive_anon:132kB active_file:196kB inactive_file:120kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:108kB dirty:0kB writeback:0kB shmem:160kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 16384kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 453.175944] Node 0 DMA free:15908kB min:160kB low:200kB high:240kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 453.202080] lowmem_reserve[]: 0 2879 6391 6391 [ 453.206683] Node 0 DMA32 free:44252kB min:30368kB low:37960kB high:45552kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2950880kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 453.233853] lowmem_reserve[]: 0 0 3512 3512 [ 453.238196] Node 0 Normal free:37028kB min:37048kB low:46308kB high:55568kB active_anon:24340kB inactive_anon:132kB active_file:56kB inactive_file:152kB unevictable:0kB writepending:0kB present:4718592kB managed:3596704kB mlocked:0kB kernel_stack:2880kB pagetables:1228kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 453.266854] lowmem_reserve[]: 0 0 0 0 [ 453.270676] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 453.284320] Node 0 DMA32: 3*4kB (UM) 2*8kB (UM) 4*16kB (UM) 2*32kB (UM) 3*64kB (UM) 3*128kB (UM) 4*256kB (UM) 3*512kB (M) 4*1024kB (UM) 2*2048kB (M) 8*4096kB (M) = 44252kB [ 453.299881] Node 0 Normal: 455*4kB (UME) 358*8kB (UME) 252*16kB (UM) 176*32kB (UM) 80*64kB (UM) 37*128kB (UM) 23*256kB (M) 12*512kB (UM) 1*1024kB (M) 0*2048kB 0*4096kB = 37260kB [ 453.315923] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 453.324509] 90 total pagecache pages [ 453.328236] 0 pages in swap cache [ 453.331693] Swap cache stats: add 0, delete 0, find 0/0 [ 453.337065] Free swap = 0kB [ 453.340091] Total swap = 0kB [ 453.343118] 1965979 pages RAM [ 453.346225] 0 pages HighMem/MovableOnly [ 453.350203] 325106 pages reserved [ 453.353663] Unreclaimable slab info: [ 453.357384] Name Used Total [ 453.362932] hashtab_node 118KB 119KB [ 453.368309] ebitmap_node 382KB 385KB [ 453.373687] avtab_node 1012KB 1013KB [ 453.379072] TIPC 1KB 7KB [ 453.384452] SCTPv6 2KB 4KB [ 453.389830] DCCPv6 2KB 7KB [ 453.395224] DCCP 2KB 6KB [ 453.400615] fib6_nodes 0KB 4KB [ 453.405989] ip6_dst_cache 6KB 7KB [ 453.411374] RAWv6 9KB 13KB [ 453.416751] UDPv6 12KB 14KB [ 453.422126] TCPv6 2KB 5KB [ 453.427508] sd_ext_cdb 0KB 3KB [ 453.432879] scsi_sense_cache 96KB 100KB [ 453.438260] virtio_scsi_cmd 16KB 16KB [ 453.443636] sgpool-128 8KB 8KB [ 453.449029] sgpool-64 4KB 6KB [ 453.454419] sgpool-32 94KB 94KB [ 453.459808] sgpool-16 41KB 41KB [ 453.465187] sgpool-8 187KB 187KB [ 453.470652] cfq_io_cq 18KB 19KB [ 453.476044] cfq_queue 27KB 27KB [ 453.481418] mqueue_inode_cache 1KB 7KB [ 453.486881] nfs_commit_data 3KB 7KB [ 453.492258] nfs_write_data 34KB 37KB [ 453.497636] jbd2_inode 1KB 3KB [ 453.503060] ext4_system_zone 0KB 3KB [ 453.508447] bio-1 1KB 3KB [ 453.513828] rpc_buffers 17KB 19KB [ 453.519201] rpc_tasks 2KB 3KB [ 453.524600] UNIX 1445KB 1463KB [ 453.536136] tcp_bind_bucket 0KB 4KB [ 453.541527] ip_fib_trie 0KB 3KB [ 453.548676] ip_fib_alias 0KB 3KB [ 453.558833] ip_dst_cache 3KB 8KB [ 453.564200] RAW 5KB 7KB [ 453.569552] UDP 29KB 31KB [ 453.574908] TCP 7KB 7KB [ 453.580256] hugetlbfs_inode_cache 1KB 7KB [ 453.585952] eventpoll_pwq 10KB 15KB [ 453.591297] eventpoll_epi 19KB 27KB [ 453.596651] inotify_inode_mark 4KB 7KB [ 453.602084] request_queue 31KB 39KB [ 453.607430] blkdev_ioc 23KB 23KB [ 453.612783] bio-0 307KB 307KB [ 453.618129] biovec-(1<<(21-12)) 511KB 511KB [ 453.623657] biovec-64 165KB 165KB [ 453.629005] biovec-16 22KB 22KB [ 453.634716] bio_integrity_payload 0KB 4KB [ 453.640411] khugepaged_mm_slot 0KB 3KB [ 453.645855] uid_cache 0KB 3KB [ 453.651203] dmaengine-unmap-2 0KB 3KB [ 453.656557] audit_buffer 0KB 3KB [ 453.661902] skbuff_fclone_cache 126KB 131KB [ 453.668068] skbuff_head_cache 1659KB 1680KB [ 453.673430] configfs_dir_cache 0KB 4KB [ 453.678866] file_lock_cache 153KB 154KB [ 453.684221] file_lock_ctx 1KB 3KB [ 453.689571] fsnotify_mark_connector 2KB 3KB [ 453.695439] shmem_inode_cache 876KB 879KB [ 453.700793] task_delay_info 280KB 407KB [ 453.706140] sigqueue 319KB 322KB [ 453.711492] kernfs_node_cache 1857KB 1862KB [ 453.716837] mnt_cache 14KB 20KB [ 453.722183] filp 8273KB 8310KB [ 453.727529] names_cache 114580KB 114609KB [ 453.732878] avc_node 37KB 39KB [ 453.738223] selinux_file_security 412KB 418KB [ 453.743916] selinux_inode_security 1895KB 1900KB [ 453.749696] key_jar 3KB 7KB [ 453.755042] nsproxy 0KB 3KB [ 453.760390] vm_area_struct 17058KB 17069KB [ 453.765735] mm_struct 3970KB 3984KB [ 453.771110] fs_cache 368KB 472KB [ 453.776459] files_cache 1382KB 1642KB [ 453.781806] signal_cache 2235KB 2623KB [ 453.787959] sighand_cache 228KB 256KB [ 453.793304] task_struct 9481KB 9481KB [ 453.798650] cred_jar 2205KB 2220KB [ 453.803993] anon_vma_chain 6989KB 7000KB [ 453.809345] anon_vma 144KB 288KB [ 453.814691] pid 195KB 288KB [ 453.820035] Acpi-Operand 106KB 170KB [ 453.825387] Acpi-Namespace 19KB 23KB [ 453.830742] numa_policy 0KB 3KB [ 453.836107] debug_objects_cache 444KB 446KB [ 453.841647] trace_event_file 144KB 147KB [ 453.846991] ftrace_event_field 254KB 255KB [ 453.852434] pool_workqueue 21KB 24KB [ 453.857782] page->ptl 2795KB 2802KB [ 453.863140] kmalloc-262144 1032KB 1032KB [ 453.868490] kmalloc-131072 650KB 650KB [ 453.873851] kmalloc-65536 264KB 264KB [ 453.879211] kmalloc-32768 495KB 495KB [ 453.884564] kmalloc-16384 148KB 148KB [ 453.889908] kmalloc-8192 420KB 420KB [ 453.895251] kmalloc-4096 8542KB 8572KB [ 453.900600] kmalloc-2048 2996KB 2996KB [ 453.905950] kmalloc-1024 3488KB 3488KB [ 453.911297] kmalloc-512 2919KB 3206KB [ 453.916650] kmalloc-256 1597KB 1920KB [ 453.921994] kmalloc-128 390KB 507KB [ 453.927340] kmalloc-96 1932KB 1932KB [ 453.932683] kmalloc-64 2312KB 2312KB [ 453.938026] kmalloc-32 2291KB 2291KB [ 453.943372] kmalloc-192 804KB 804KB [ 453.948718] kmem_cache 97KB 101KB [ 453.954070] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 453.962645] [ 1628] 0 1628 5385 172 90112 0 -1000 udevd [ 453.970776] [ 3036] 0 3036 14265 180 114688 0 0 rsyslogd [ 453.979174] [ 3091] 0 3091 4725 51 86016 0 0 cron [ 453.987221] [ 3115] 0 3115 3735 44 65536 0 0 mcstransd [ 453.995707] [ 3128] 0 3128 12490 153 139264 0 -1000 sshd [ 454.003753] [ 3161] 0 3161 3694 40 73728 0 0 getty [ 454.011881] [ 3162] 0 3162 3694 40 73728 0 0 getty [ 454.020026] [ 3163] 0 3163 3694 41 73728 0 0 getty [ 454.028158] [ 3164] 0 3164 3694 41 73728 0 0 getty [ 454.036296] [ 3165] 0 3165 3694 41 77824 0 0 getty [ 454.044436] [ 3166] 0 3166 3694 42 73728 0 0 getty [ 454.052565] [ 3167] 0 3167 3649 39 69632 0 0 getty [ 454.060701] [ 3170] 0 3170 5681 455 90112 0 -1000 udevd [ 454.068838] [ 3171] 0 3171 5681 455 90112 0 -1000 udevd [ 454.076967] [ 3191] 0 3191 17821 199 184320 0 0 sshd [ 454.085028] [ 3193] 0 3193 280 1 32768 0 0 syzkaller005063 [ 454.094031] [ 3194] 0 3194 4371 524 36864 0 0 syzkaller005063 [ 454.103031] [ 3195] 0 3195 4371 524 36864 0 0 syzkaller005063 [ 454.112030] [ 3196] 0 3196 4371 524 36864 0 0 syzkaller005063 [ 454.121039] [ 3197] 0 3197 4371 524 36864 0 0 syzkaller005063 [ 454.130039] [ 3198] 0 3198 4371 524 36864 0 0 syzkaller005063 [ 454.139037] [ 3199] 0 3199 4371 524 36864 0 0 syzkaller005063 [ 454.148039] [ 3200] 0 3200 4371 524 36864 0 0 syzkaller005063 [ 454.157038] [ 3201] 0 3201 4371 524 36864 0 0 syzkaller005063 [ 454.166035] Out of memory: Kill process 3194 (syzkaller005063) score 0 or sacrifice child [ 454.174356] Killed process 3194 (syzkaller005063) total-vm:17484kB, anon-rss:2096kB, file-rss:0kB, shmem-rss:0kB [ 454.186691] oom_reaper: reaped process 3194 (syzkaller005063), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 454.359853] kworker/1:1 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 454.371884] kworker/1:1 cpuset=/ mems_allowed=0 [ 454.376582] CPU: 1 PID: 3202 Comm: kworker/1:1 Not tainted 4.15.0-rc5+ #170 [ 454.383678] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 454.393028] Workqueue: events pcpu_balance_workfn [ 454.397851] Call Trace: [ 454.400414] dump_stack+0x194/0x257 [ 454.404019] ? arch_local_irq_restore+0x53/0x53 [ 454.408668] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 454.413848] dump_header+0x28c/0xe1e [ 454.417549] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 454.422714] ? pagefault_out_of_memory+0x152/0x152 [ 454.427624] ? check_noncircular+0x20/0x20 [ 454.431841] ? print_irqtrace_events+0x270/0x270 [ 454.436572] ? __lock_acquire+0x664/0x3e00 [ 454.440777] ? _raw_spin_unlock_irq+0x27/0x70 [ 454.445256] ? check_noncircular+0x20/0x20 [ 454.449490] ? find_held_lock+0x35/0x1d0 [ 454.453569] ? check_noncircular+0x20/0x20 [ 454.457782] ? task_will_free_mem+0x252/0xaa0 [ 454.462253] ? print_irqtrace_events+0x270/0x270 [ 454.467037] ? ___ratelimit+0x30d/0x630 [ 454.470993] ? lock_downgrade+0x980/0x980 [ 454.475127] ? lock_release+0xa40/0xa40 [ 454.479095] ? mark_held_locks+0xaf/0x100 [ 454.483230] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 454.488312] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 454.493305] ? trace_hardirqs_on+0xd/0x10 [ 454.497451] ? ___ratelimit+0x95/0x630 [ 454.501324] ? idr_get_free_cmn+0xfd0/0xfd0 [ 454.505629] ? check_noncircular+0x20/0x20 [ 454.509838] ? find_held_lock+0x138/0x1d0 [ 454.513973] oom_kill_process+0x8b5/0x14a0 [ 454.518183] ? has_ns_capability_noaudit+0x163/0x2a0 [ 454.523274] ? lock_downgrade+0x980/0x980 [ 454.527417] ? oom_evaluate_task+0x480/0x480 [ 454.531817] ? security_capable_noaudit+0x8b/0xc0 [ 454.536637] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 454.541720] ? has_capability+0x30/0x30 [ 454.545683] ? do_raw_spin_trylock+0x190/0x190 [ 454.550256] ? check_noncircular+0x20/0x20 [ 454.554491] ? has_capability_noaudit+0x24/0x30 [ 454.559146] ? oom_badness+0xd1/0x980 [ 454.562929] ? lock_release+0xa40/0xa40 [ 454.566881] ? find_lock_task_mm+0x460/0x460 [ 454.571309] ? find_held_lock+0x35/0x1d0 [ 454.575372] ? out_of_memory+0xb3a/0x1220 [ 454.579514] ? lock_downgrade+0x980/0x980 [ 454.583658] ? lock_release+0xa40/0xa40 [ 454.587618] ? lock_acquire+0x1d5/0x580 [ 454.591582] ? blocking_notifier_call_chain+0x112/0x190 [ 454.596924] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 454.601843] ? oom_evaluate_task+0x284/0x480 [ 454.606228] out_of_memory+0x86d/0x1220 [ 454.610186] ? find_next_bit+0x27/0x30 [ 454.614053] ? oom_killer_disable+0x310/0x310 [ 454.618519] ? mutex_trylock+0x23a/0x2d0 [ 454.622556] ? __lock_is_held+0xb6/0x140 [ 454.626591] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 454.632042] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 454.636900] ? warn_alloc+0x2b0/0x2b0 [ 454.640674] ? check_noncircular+0x20/0x20 [ 454.644889] ? print_irqtrace_events+0x270/0x270 [ 454.649629] ? lock_release+0xa40/0xa40 [ 454.653593] ? lock_pin_lock+0x360/0x360 [ 454.657646] ? lock_acquire+0x1d5/0x580 [ 454.661604] ? lock_acquire+0x1d5/0x580 [ 454.665567] ? __lock_acquire+0x664/0x3e00 [ 454.669786] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 454.675647] ? lock_release+0xa40/0xa40 [ 454.679638] ? __lock_is_held+0xb6/0x140 [ 454.683694] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 454.689571] ? __might_sleep+0x95/0x190 [ 454.693539] __alloc_pages_nodemask+0x9fb/0xd80 [ 454.698186] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 454.703362] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 454.708358] ? __lock_acquire+0x664/0x3e00 [ 454.712570] ? __lock_acquire+0x664/0x3e00 [ 454.716782] ? print_irqtrace_events+0x270/0x270 [ 454.721534] ? __lock_is_held+0xb6/0x140 [ 454.725594] ? find_next_bit+0x27/0x30 [ 454.729478] pcpu_populate_chunk+0x1b3/0x880 [ 454.733878] pcpu_balance_workfn+0xf3e/0x1520 [ 454.738348] ? check_noncircular+0x20/0x20 [ 454.742562] ? find_held_lock+0x35/0x1d0 [ 454.746606] ? pcpu_create_chunk+0x900/0x900 [ 454.750987] ? lock_release+0xa40/0xa40 [ 454.754948] ? check_noncircular+0x20/0x20 [ 454.759174] ? lock_acquire+0x1d5/0x580 [ 454.763130] ? lock_acquire+0x1d5/0x580 [ 454.767089] ? process_one_work+0xb01/0x1b10 [ 454.771499] ? __lock_is_held+0xb6/0x140 [ 454.775568] process_one_work+0xbbf/0x1b10 [ 454.779784] ? trace_hardirqs_on+0xd/0x10 [ 454.783914] ? pwq_dec_nr_in_flight+0x450/0x450 [ 454.788568] ? __schedule+0x8f3/0x2060 [ 454.792426] ? update_curr+0x47b/0xa60 [ 454.796294] ? check_noncircular+0x20/0x20 [ 454.800513] ? __lock_is_held+0xb6/0x140 [ 454.804569] ? lock_acquire+0x1d5/0x580 [ 454.808515] ? lock_acquire+0x1d5/0x580 [ 454.812461] ? worker_thread+0x4a3/0x1990 [ 454.816582] ? lock_downgrade+0x980/0x980 [ 454.820713] ? lock_release+0xa40/0xa40 [ 454.824658] ? retint_kernel+0x10/0x10 [ 454.828516] ? do_raw_spin_trylock+0x190/0x190 [ 454.833101] worker_thread+0x223/0x1990 [ 454.837091] ? process_one_work+0x1b10/0x1b10 [ 454.841573] ? _raw_spin_unlock_irq+0x27/0x70 [ 454.846044] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 454.851039] ? trace_hardirqs_on+0xd/0x10 [ 454.855170] ? _raw_spin_unlock_irq+0x27/0x70 [ 454.859650] ? finish_task_switch+0x1d3/0x740 [ 454.864126] ? finish_task_switch+0x1aa/0x740 [ 454.868606] ? copy_overflow+0x20/0x20 [ 454.872476] ? __schedule+0x8f3/0x2060 [ 454.876356] ? find_held_lock+0x35/0x1d0 [ 454.880394] ? find_held_lock+0x35/0x1d0 [ 454.884437] ? complete+0x62/0x80 [ 454.887871] ? __schedule+0x2060/0x2060 [ 454.891817] ? do_wait_intr_irq+0x3e0/0x3e0 [ 454.896112] ? __lockdep_init_map+0xe4/0x650 [ 454.900495] ? do_raw_spin_trylock+0x190/0x190 [ 454.905056] ? lockdep_init_map+0x9/0x10 [ 454.909104] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 454.914187] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 454.919196] ? trace_hardirqs_on+0xd/0x10 [ 454.923332] ? __kthread_parkme+0x175/0x240 [ 454.927649] kthread+0x33c/0x400 [ 454.930997] ? process_one_work+0x1b10/0x1b10 [ 454.935472] ? kthread_stop+0x7a0/0x7a0 [ 454.939438] ret_from_fork+0x24/0x30 [ 454.943252] Mem-Info: [ 454.945684] active_anon:5568 inactive_anon:33 isolated_anon:0 [ 454.945684] active_file:14 inactive_file:16 isolated_file:0 [ 454.945684] unevictable:0 dirty:0 writeback:0 unstable:0 [ 454.945684] slab_reclaimable:7185 slab_unreclaimable:83681 [ 454.945684] mapped:11 shmem:40 pagetables:306 bounce:0 [ 454.945684] free:24140 free_pcp:0 free_cma:0 [ 454.977724] Node 0 active_anon:22272kB inactive_anon:132kB active_file:56kB inactive_file:64kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:44kB dirty:0kB writeback:0kB shmem:160kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 14336kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 455.004712] Node 0 DMA free:15908kB min:160kB low:200kB high:240kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 455.030829] lowmem_reserve[]: 0 2879 6391 6391 [ 455.035434] Node 0 DMA32 free:44252kB min:30368kB low:37960kB high:45552kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2950880kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 455.062621] lowmem_reserve[]: 0 0 3512 3512 [ 455.066975] Node 0 Normal free:36400kB min:37048kB low:46308kB high:55568kB active_anon:22272kB inactive_anon:132kB active_file:56kB inactive_file:196kB unevictable:0kB writepending:0kB present:4718592kB managed:3596704kB mlocked:0kB kernel_stack:2880kB pagetables:1224kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 455.095548] lowmem_reserve[]: 0 0 0 0 [ 455.099384] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 455.113033] Node 0 DMA32: 3*4kB (UM) 2*8kB (UM) 4*16kB (UM) 2*32kB (UM) 3*64kB (UM) 3*128kB (UM) 4*256kB (UM) 3*512kB (M) 4*1024kB (UM) 2*2048kB (M) 8*4096kB (M) = 44252kB [ 455.128605] Node 0 Normal: 447*4kB (UME) 358*8kB (UME) 252*16kB (UM) 175*32kB (UM) 80*64kB (UM) 38*128kB (UM) 23*256kB (M) 11*512kB (M) 1*1024kB (M) 0*2048kB 0*4096kB = 36812kB [ 455.144585] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 455.153167] 86 total pagecache pages [ 455.156876] 0 pages in swap cache [ 455.160326] Swap cache stats: add 0, delete 0, find 0/0 [ 455.165681] Free swap = 0kB [ 455.168689] Total swap = 0kB [ 455.171691] 1965979 pages RAM [ 455.174779] 0 pages HighMem/MovableOnly [ 455.178783] 325106 pages reserved [ 455.182248] Unreclaimable slab info: [ 455.185951] Name Used Total [ 455.191491] hashtab_node 118KB 119KB [ 455.196846] ebitmap_node 382KB 385KB [ 455.202215] avtab_node 1012KB 1013KB [ 455.207585] TIPC 1KB 7KB [ 455.212937] SCTPv6 2KB 4KB [ 455.218304] DCCPv6 2KB 7KB [ 455.223664] DCCP 2KB 6KB [ 455.229046] fib6_nodes 0KB 4KB [ 455.234416] ip6_dst_cache 6KB 7KB [ 455.239771] RAWv6 9KB 13KB [ 455.245131] UDPv6 12KB 14KB [ 455.250502] TCPv6 2KB 5KB [ 455.255876] sd_ext_cdb 0KB 3KB [ 455.261247] scsi_sense_cache 104KB 104KB [ 455.266605] virtio_scsi_cmd 16KB 16KB [ 455.271957] sgpool-128 8KB 8KB [ 455.277308] sgpool-64 4KB 6KB [ 455.282673] sgpool-32 133KB 133KB [ 455.288043] sgpool-16 45KB 45KB [ 455.293401] sgpool-8 191KB 191KB [ 455.298769] cfq_io_cq 18KB 19KB [ 455.304144] cfq_queue 27KB 27KB [ 455.309503] mqueue_inode_cache 1KB 7KB [ 455.314953] nfs_commit_data 3KB 7KB [ 455.320325] nfs_write_data 34KB 37KB [ 455.325683] jbd2_inode 1KB 3KB [ 455.331051] ext4_system_zone 0KB 3KB [ 455.336412] bio-1 1KB 3KB [ 455.341767] rpc_buffers 17KB 19KB [ 455.347132] rpc_tasks 2KB 3KB [ 455.352493] UNIX 1445KB 1463KB [ 455.357847] tcp_bind_bucket 0KB 4KB [ 455.363222] ip_fib_trie 0KB 3KB [ 455.368593] ip_fib_alias 0KB 3KB [ 455.373945] ip_dst_cache 3KB 8KB [ 455.379314] RAW 5KB 7KB [ 455.384671] UDP 29KB 31KB [ 455.390048] TCP 7KB 7KB [ 455.395405] hugetlbfs_inode_cache 1KB 7KB [ 455.401119] eventpoll_pwq 10KB 15KB [ 455.406475] eventpoll_epi 19KB 27KB [ 455.411830] inotify_inode_mark 4KB 7KB [ 455.417276] request_queue 31KB 39KB [ 455.422644] blkdev_ioc 23KB 23KB [ 455.428031] bio-0 326KB 326KB [ 455.433393] biovec-(1<<(21-12)) 511KB 511KB [ 455.438935] biovec-64 204KB 204KB [ 455.444309] biovec-16 26KB 26KB [ 455.449670] bio_integrity_payload 0KB 4KB [ 455.455368] khugepaged_mm_slot 0KB 3KB [ 455.460827] uid_cache 0KB 3KB [ 455.466197] dmaengine-unmap-2 0KB 3KB [ 455.471555] audit_buffer 0KB 3KB [ 455.476917] skbuff_fclone_cache 126KB 131KB [ 455.482466] skbuff_head_cache 1659KB 1680KB [ 455.487825] configfs_dir_cache 0KB 4KB [ 455.493271] file_lock_cache 153KB 154KB [ 455.498625] file_lock_ctx 1KB 3KB [ 455.503976] fsnotify_mark_connector 2KB 3KB [ 455.509850] shmem_inode_cache 876KB 879KB [ 455.515224] task_delay_info 280KB 407KB [ 455.520581] sigqueue 319KB 322KB [ 455.525933] kernfs_node_cache 1857KB 1862KB [ 455.531295] mnt_cache 14KB 20KB [ 455.536658] filp 8273KB 8310KB [ 455.542031] names_cache 114580KB 114609KB [ 455.547393] avc_node 37KB 39KB [ 455.552758] selinux_file_security 412KB 418KB [ 455.558476] selinux_inode_security 1895KB 1900KB [ 455.564281] key_jar 3KB 7KB [ 455.569639] nsproxy 0KB 3KB [ 455.575005] vm_area_struct 17058KB 17069KB [ 455.580391] mm_struct 3970KB 3984KB [ 455.585746] fs_cache 368KB 472KB [ 455.591112] files_cache 1382KB 1642KB [ 455.596468] signal_cache 2235KB 2623KB [ 455.601820] sighand_cache 228KB 256KB [ 455.607188] task_struct 9481KB 9481KB [ 455.612547] cred_jar 2205KB 2220KB [ 455.617897] anon_vma_chain 6989KB 7000KB [ 455.623263] anon_vma 144KB 288KB [ 455.628616] pid 195KB 288KB [ 455.633965] Acpi-Operand 106KB 170KB [ 455.639324] Acpi-Namespace 19KB 23KB [ 455.644689] numa_policy 0KB 3KB [ 455.650062] debug_objects_cache 444KB 446KB [ 455.655595] trace_event_file 144KB 147KB [ 455.660962] ftrace_event_field 254KB 255KB [ 455.666834] pool_workqueue 21KB 24KB [ 455.672212] page->ptl 2795KB 2802KB [ 455.677587] kmalloc-262144 1032KB 1032KB [ 455.682954] kmalloc-131072 650KB 650KB [ 455.688328] kmalloc-65536 264KB 264KB [ 455.693686] kmalloc-32768 495KB 495KB [ 455.699052] kmalloc-16384 148KB 148KB [ 455.704408] kmalloc-8192 420KB 420KB [ 455.709759] kmalloc-4096 8542KB 8572KB [ 455.715136] kmalloc-2048 2996KB 2996KB [ 455.720497] kmalloc-1024 3551KB 3551KB [ 455.725848] kmalloc-512 2919KB 3206KB [ 455.731215] kmalloc-256 1597KB 1920KB [ 455.736571] kmalloc-128 390KB 507KB [ 455.741926] kmalloc-96 1932KB 1932KB [ 455.747284] kmalloc-64 2312KB 2312KB [ 455.752649] kmalloc-32 2291KB 2291KB [ 455.758035] kmalloc-192 804KB 804KB [ 455.763395] kmem_cache 97KB 101KB [ 455.768768] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 455.777368] [ 1628] 0 1628 5385 172 90112 0 -1000 udevd [ 455.785515] [ 3036] 0 3036 14265 180 114688 0 0 rsyslogd [ 455.793917] [ 3091] 0 3091 4725 51 86016 0 0 cron [ 455.801973] [ 3115] 0 3115 3735 44 65536 0 0 mcstransd [ 455.810485] [ 3128] 0 3128 12490 153 139264 0 -1000 sshd [ 455.818569] [ 3161] 0 3161 3694 40 73728 0 0 getty [ 455.826732] [ 3162] 0 3162 3694 40 73728 0 0 getty [ 455.834900] [ 3163] 0 3163 3694 41 73728 0 0 getty [ 455.843066] [ 3164] 0 3164 3694 41 73728 0 0 getty [ 455.851213] [ 3165] 0 3165 3694 41 77824 0 0 getty [ 455.859367] [ 3166] 0 3166 3694 42 73728 0 0 getty [ 455.867534] [ 3167] 0 3167 3649 39 69632 0 0 getty [ 455.875703] [ 3170] 0 3170 5681 455 90112 0 -1000 udevd [ 455.883865] [ 3171] 0 3171 5681 455 90112 0 -1000 udevd [ 455.892050] [ 3191] 0 3191 17821 199 184320 0 0 sshd [ 455.900110] [ 3193] 0 3193 280 1 32768 0 0 syzkaller005063 [ 455.909140] [ 3194] 0 3194 4371 0 32768 0 0 syzkaller005063 [ 455.918162] [ 3195] 0 3195 4371 524 36864 0 0 syzkaller005063 [ 455.927197] [ 3196] 0 3196 4371 524 36864 0 0 syzkaller005063 [ 455.936206] [ 3197] 0 3197 4371 524 36864 0 0 syzkaller005063 [ 455.945230] [ 3198] 0 3198 4371 524 36864 0 0 syzkaller005063 [ 455.954239] [ 3199] 0 3199 4371 524 36864 0 0 syzkaller005063 [ 455.963265] [ 3200] 0 3200 4371 524 36864 0 0 syzkaller005063 [ 455.972280] [ 3201] 0 3201 4371 524 36864 0 0 syzkaller005063 [ 455.981549] Out of memory: Kill process 3195 (syzkaller005063) score 0 or sacrifice child [ 455.989877] Killed process 3195 (syzkaller005063) total-vm:17484kB, anon-rss:2096kB, file-rss:0kB, shmem-rss:0kB [ 456.002658] oom_reaper: reaped process 3195 (syzkaller005063), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 456.071368] rs:main Q:Reg invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=0 [ 456.083186] rs:main Q:Reg cpuset=/ mems_allowed=0 [ 456.088026] CPU: 0 PID: 3037 Comm: rs:main Q:Reg Not tainted 4.15.0-rc5+ #170 [ 456.095262] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 456.104582] Call Trace: [ 456.107140] dump_stack+0x194/0x257 [ 456.110735] ? arch_local_irq_restore+0x53/0x53 [ 456.115372] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 456.120533] dump_header+0x28c/0xe1e [ 456.124220] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 456.129412] ? pagefault_out_of_memory+0x152/0x152 [ 456.134313] ? check_noncircular+0x20/0x20 [ 456.138515] ? print_irqtrace_events+0x270/0x270 [ 456.143243] ? __lock_acquire+0x664/0x3e00 [ 456.147446] ? check_noncircular+0x20/0x20 [ 456.151653] ? find_held_lock+0x35/0x1d0 [ 456.155685] ? check_noncircular+0x20/0x20 [ 456.159888] ? task_will_free_mem+0x252/0xaa0 [ 456.164372] ? print_irqtrace_events+0x270/0x270 [ 456.169115] ? ___ratelimit+0x30d/0x630 [ 456.173062] ? lock_downgrade+0x980/0x980 [ 456.177182] ? lock_release+0xa40/0xa40 [ 456.181130] ? mark_held_locks+0xaf/0x100 [ 456.185256] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 456.190339] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 456.195331] ? trace_hardirqs_on+0xd/0x10 [ 456.199452] ? ___ratelimit+0x95/0x630 [ 456.203310] ? idr_get_free_cmn+0xfd0/0xfd0 [ 456.207609] ? check_noncircular+0x20/0x20 [ 456.211824] ? find_held_lock+0x138/0x1d0 [ 456.215951] oom_kill_process+0x8b5/0x14a0 [ 456.220167] ? has_ns_capability_noaudit+0x163/0x2a0 [ 456.225246] ? lock_downgrade+0x980/0x980 [ 456.229369] ? oom_evaluate_task+0x480/0x480 [ 456.233756] ? security_capable_noaudit+0x8b/0xc0 [ 456.238585] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 456.243752] ? has_capability+0x30/0x30 [ 456.247698] ? do_raw_spin_trylock+0x190/0x190 [ 456.252262] ? check_noncircular+0x20/0x20 [ 456.256492] ? has_capability_noaudit+0x24/0x30 [ 456.261146] ? oom_badness+0xd1/0x980 [ 456.264915] ? lock_release+0xa40/0xa40 [ 456.268859] ? do_try_to_free_pages+0xc53/0x1020 [ 456.273587] ? find_lock_task_mm+0x460/0x460 [ 456.277971] ? find_held_lock+0x35/0x1d0 [ 456.282019] ? out_of_memory+0xb3a/0x1220 [ 456.286152] ? lock_downgrade+0x980/0x980 [ 456.290289] ? lock_release+0xa40/0xa40 [ 456.294242] ? lock_acquire+0x1d5/0x580 [ 456.298200] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 456.303114] ? oom_evaluate_task+0x284/0x480 [ 456.307500] out_of_memory+0x86d/0x1220 [ 456.311444] ? trace_hardirqs_on+0xd/0x10 [ 456.315569] ? oom_killer_disable+0x310/0x310 [ 456.320036] ? mutex_trylock+0x23a/0x2d0 [ 456.324088] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 456.329516] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 456.335385] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 456.340221] ? trace_hardirqs_on+0xd/0x10 [ 456.344379] ? warn_alloc+0x2b0/0x2b0 [ 456.348162] ? lock_downgrade+0x980/0x980 [ 456.352305] ? __lock_is_held+0xb6/0x140 [ 456.356371] ? find_get_entry+0x53c/0x9e0 [ 456.360536] ? __lock_acquire+0x664/0x3e00 [ 456.364773] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 456.370644] ? __might_sleep+0x95/0x190 [ 456.374601] __alloc_pages_nodemask+0x9fb/0xd80 [ 456.379256] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 456.384252] ? add_to_page_cache_lru+0x510/0x510 [ 456.388988] ? check_noncircular+0x20/0x20 [ 456.393198] ? check_noncircular+0x20/0x20 [ 456.397406] ? __schedule+0x8f3/0x2060 [ 456.401267] ? lock_acquire+0x1d5/0x580 [ 456.405228] alloc_pages_current+0xb6/0x1e0 [ 456.409525] __page_cache_alloc+0x334/0x500 [ 456.413819] ? rcu_read_lock_held+0xa9/0xc0 [ 456.418121] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 456.425471] filemap_fault+0xefc/0x1c20 [ 456.429420] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 456.434608] ? __lock_page_or_retry+0x4f0/0x4f0 [ 456.439262] ? filemap_map_pages+0x942/0x15d0 [ 456.443741] ? find_get_entries_tag+0xeb0/0xeb0 [ 456.448393] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 456.453565] ? check_noncircular+0x20/0x20 [ 456.457789] ? print_irqtrace_events+0x270/0x270 [ 456.462522] ? print_irqtrace_events+0x270/0x270 [ 456.467258] ? print_irqtrace_events+0x270/0x270 [ 456.471991] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 456.477163] ? lock_acquire+0x1d5/0x580 [ 456.481107] ? lock_acquire+0x1d5/0x580 [ 456.485054] ? ext4_filemap_fault+0x7a/0xad [ 456.489354] ? lock_release+0xa40/0xa40 [ 456.493299] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 456.499159] ? rcu_note_context_switch+0x710/0x710 [ 456.504074] ? __might_sleep+0x95/0x190 [ 456.508040] ? down_read+0x96/0x150 [ 456.511649] ? ext4_filemap_fault+0x7a/0xad [ 456.515944] ? __down_interruptible+0x6b0/0x6b0 [ 456.520613] ext4_filemap_fault+0x82/0xad [ 456.524742] __do_fault+0xeb/0x30f [ 456.528263] ? pte_offset_kernel+0xc7/0xc7 [ 456.532482] ? current_time+0x18/0xc0 [ 456.536266] ? do_raw_spin_trylock+0x190/0x190 [ 456.540827] ? check_noncircular+0x20/0x20 [ 456.545040] ? check_noncircular+0x20/0x20 [ 456.549251] __handle_mm_fault+0x1d8f/0x3ce0 [ 456.553636] ? __pmd_alloc+0x4e0/0x4e0 [ 456.557501] ? find_held_lock+0x35/0x1d0 [ 456.561539] ? handle_mm_fault+0x248/0x8d0 [ 456.565746] ? lock_downgrade+0x980/0x980 [ 456.569887] handle_mm_fault+0x334/0x8d0 [ 456.573917] ? down_read_trylock+0xdb/0x170 [ 456.578213] ? __do_page_fault+0x32d/0xc90 [ 456.582434] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 456.586990] ? vmacache_find+0x5f/0x280 [ 456.590938] ? find_vma+0x30/0x150 [ 456.594460] __do_page_fault+0x5c9/0xc90 [ 456.598505] ? kernel_read+0x120/0x120 [ 456.602388] ? mm_fault_error+0x2c0/0x2c0 [ 456.606521] ? avc_policy_seqno+0x9/0x20 [ 456.610579] do_page_fault+0xee/0x720 [ 456.614375] ? __do_page_fault+0xc90/0xc90 [ 456.618603] ? vfs_write+0x224/0x510 [ 456.622302] ? fput+0xd2/0x140 [ 456.625470] ? SyS_write+0x184/0x220 [ 456.629166] ? retint_user+0x18/0x18 [ 456.632850] ? page_fault+0x36/0x60 [ 456.636454] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 456.641276] ? page_fault+0x36/0x60 [ 456.644877] page_fault+0x4c/0x60 [ 456.648305] RIP: 0033:0x421030 [ 456.651471] RSP: 002b:00007fae39b15c28 EFLAGS: 00010246 [ 456.656802] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 456.664050] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000449160 [ 456.671295] RBP: 0000000000000001 R08: 0000000001508b80 R09: 0000000000000bdd [ 456.678539] R10: 0000000000000000 R11: 000000000065e478 R12: 00000000014f8a10 [ 456.685782] R13: 0000000001509120 R14: 00000000014f8a38 R15: 00000000014f8a10 [ 456.693102] Mem-Info: [ 456.695946] active_anon:5051 inactive_anon:33 isolated_anon:0 [ 456.695946] active_file:20 inactive_file:21 isolated_file:0 [ 456.695946] unevictable:0 dirty:0 writeback:0 unstable:0 [ 456.695946] slab_reclaimable:7185 slab_unreclaimable:83678 [ 456.695946] mapped:3 shmem:40 pagetables:305 bounce:0 [ 456.695946] free:24218 free_pcp:0 free_cma:0 [ 456.727895] Node 0 active_anon:20204kB inactive_anon:132kB active_file:80kB inactive_file:84kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:12kB dirty:0kB writeback:0kB shmem:160kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 12288kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 456.754917] Node 0 DMA free:15908kB min:160kB low:200kB high:240kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 456.781121] lowmem_reserve[]: 0 2879 6391 6391 [ 456.785706] Node 0 DMA32 free:44252kB min:30368kB low:37960kB high:45552kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2950880kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 456.812861] lowmem_reserve[]: 0 0 3512 3512 [ 456.817192] Node 0 Normal free:36936kB min:37048kB low:46308kB high:55568kB active_anon:20204kB inactive_anon:132kB active_file:52kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3596704kB mlocked:0kB kernel_stack:2880kB pagetables:1220kB bounce:0kB free_pcp:120kB local_pcp:0kB free_cma:0kB [ 456.846488] lowmem_reserve[]: 0 0 0 0 [ 456.850329] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 456.863967] Node 0 DMA32: 3*4kB (UM) 2*8kB (UM) 4*16kB (UM) 2*32kB (UM) 3*64kB (UM) 3*128kB (UM) 4*256kB (UM) 3*512kB (M) 4*1024kB (UM) 2*2048kB (M) 8*4096kB (M) = 44252kB [ 456.879520] Node 0 Normal: 452*4kB (UME) 357*8kB (UME) 251*16kB (UM) 175*32kB (UM) 78*64kB (M) 38*128kB (UM) 24*256kB (UM) 11*512kB (M) 1*1024kB (M) 0*2048kB 0*4096kB = 36936kB [ 456.895451] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 456.904037] 67 total pagecache pages [ 456.907751] 0 pages in swap cache [ 456.911192] Swap cache stats: add 0, delete 0, find 0/0 [ 456.916561] Free swap = 0kB [ 456.919573] Total swap = 0kB [ 456.922590] 1965979 pages RAM [ 456.925687] 0 pages HighMem/MovableOnly [ 456.929642] 325106 pages reserved [ 456.933080] Unreclaimable slab info: [ 456.936775] Name Used Total [ 456.942311] hashtab_node 118KB 119KB [ 456.947680] ebitmap_node 382KB 385KB [ 456.953031] avtab_node 1012KB 1013KB [ 456.958399] TIPC 1KB 7KB [ 456.963760] SCTPv6 2KB 4KB [ 456.969115] DCCPv6 2KB 7KB [ 456.974489] DCCP 2KB 6KB [ 456.980542] fib6_nodes 0KB 4KB [ 456.985909] ip6_dst_cache 6KB 7KB [ 456.991261] RAWv6 9KB 13KB [ 456.996626] UDPv6 12KB 14KB [ 457.001986] TCPv6 2KB 5KB [ 457.007361] sd_ext_cdb 0KB 3KB [ 457.012712] scsi_sense_cache 104KB 104KB [ 457.018076] virtio_scsi_cmd 16KB 16KB [ 457.023436] sgpool-128 8KB 8KB [ 457.028785] sgpool-64 4KB 6KB [ 457.034150] sgpool-32 141KB 141KB [ 457.039507] sgpool-16 45KB 45KB [ 457.044854] sgpool-8 191KB 191KB [ 457.050223] cfq_io_cq 18KB 19KB [ 457.055581] cfq_queue 27KB 27KB [ 457.060930] mqueue_inode_cache 1KB 7KB [ 457.066382] nfs_commit_data 3KB 7KB [ 457.071740] nfs_write_data 34KB 37KB [ 457.077089] jbd2_inode 1KB 3KB [ 457.082450] ext4_system_zone 0KB 3KB [ 457.087811] bio-1 1KB 3KB [ 457.093164] rpc_buffers 17KB 19KB [ 457.098527] rpc_tasks 2KB 3KB [ 457.103891] UNIX 1436KB 1463KB [ 457.109252] tcp_bind_bucket 0KB 4KB [ 457.115083] ip_fib_trie 0KB 3KB [ 457.120451] ip_fib_alias 0KB 3KB [ 457.125809] ip_dst_cache 3KB 8KB [ 457.131158] RAW 5KB 7KB [ 457.136520] UDP 29KB 31KB [ 457.141883] TCP 7KB 7KB [ 457.147235] hugetlbfs_inode_cache 1KB 7KB [ 457.152941] eventpoll_pwq 10KB 15KB [ 457.158307] eventpoll_epi 19KB 27KB [ 457.163669] inotify_inode_mark 4KB 7KB [ 457.169108] request_queue 31KB 39KB [ 457.174487] blkdev_ioc 23KB 23KB [ 457.179847] bio-0 333KB 333KB [ 457.185201] biovec-(1<<(21-12)) 511KB 511KB [ 457.190763] biovec-64 220KB 220KB [ 457.196150] biovec-16 26KB 26KB [ 457.201521] bio_integrity_payload 0KB 4KB [ 457.207232] khugepaged_mm_slot 0KB 3KB [ 457.212686] uid_cache 0KB 3KB [ 457.218053] dmaengine-unmap-2 0KB 3KB [ 457.223413] audit_buffer 0KB 3KB [ 457.228766] skbuff_fclone_cache 126KB 131KB [ 457.234313] skbuff_head_cache 1655KB 1680KB [ 457.239674] configfs_dir_cache 0KB 4KB [ 457.245116] file_lock_cache 153KB 154KB [ 457.251005] file_lock_ctx 1KB 3KB [ 457.256397] fsnotify_mark_connector 2KB 3KB [ 457.262291] shmem_inode_cache 876KB 879KB [ 457.267652] task_delay_info 279KB 407KB [ 457.273005] sigqueue 319KB 322KB [ 457.278384] kernfs_node_cache 1857KB 1862KB [ 457.283742] mnt_cache 14KB 20KB [ 457.289104] filp 8266KB 8302KB [ 457.294472] names_cache 114580KB 114609KB [ 457.299843] avc_node 37KB 39KB [ 457.305205] selinux_file_security 412KB 418KB [ 457.310908] selinux_inode_security 1894KB 1900KB [ 457.316706] key_jar 3KB 7KB [ 457.322074] nsproxy 0KB 3KB [ 457.327437] vm_area_struct 17055KB 17069KB [ 457.332790] mm_struct 3970KB 3984KB [ 457.338156] fs_cache 368KB 472KB [ 457.343514] files_cache 1382KB 1642KB [ 457.348862] signal_cache 2228KB 2623KB [ 457.354225] sighand_cache 217KB 256KB [ 457.359581] task_struct 9469KB 9481KB [ 457.364932] cred_jar 2203KB 2220KB [ 457.370295] anon_vma_chain 6986KB 7000KB [ 457.375649] anon_vma 144KB 288KB [ 457.381448] pid 194KB 288KB [ 457.386802] Acpi-Operand 106KB 170KB [ 457.392166] Acpi-Namespace 19KB 23KB [ 457.397527] numa_policy 0KB 3KB [ 457.402874] debug_objects_cache 444KB 446KB [ 457.408408] trace_event_file 144KB 147KB [ 457.413763] ftrace_event_field 254KB 255KB [ 457.419198] pool_workqueue 21KB 24KB [ 457.424566] page->ptl 2793KB 2802KB [ 457.429932] kmalloc-262144 1032KB 1032KB [ 457.435282] kmalloc-131072 650KB 650KB [ 457.440640] kmalloc-65536 264KB 264KB [ 457.445997] kmalloc-32768 495KB 495KB [ 457.451352] kmalloc-16384 148KB 148KB [ 457.456704] kmalloc-8192 420KB 420KB [ 457.462061] kmalloc-4096 8534KB 8572KB [ 457.467430] kmalloc-2048 2996KB 2996KB [ 457.472777] kmalloc-1024 3567KB 3567KB [ 457.478141] kmalloc-512 2912KB 3202KB [ 457.483495] kmalloc-256 1594KB 1920KB [ 457.488842] kmalloc-128 389KB 507KB [ 457.494209] kmalloc-96 1932KB 1932KB [ 457.499563] kmalloc-64 2316KB 2316KB [ 457.504907] kmalloc-32 2291KB 2291KB [ 457.510266] kmalloc-192 804KB 804KB [ 457.516079] kmem_cache 97KB 101KB [ 457.521434] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 457.530043] [ 1628] 0 1628 5385 172 90112 0 -1000 udevd [ 457.538199] [ 3036] 0 3036 14265 180 114688 0 0 rsyslogd [ 457.546615] [ 3091] 0 3091 4725 51 86016 0 0 cron [ 457.554673] [ 3115] 0 3115 3735 44 65536 0 0 mcstransd [ 457.563153] [ 3128] 0 3128 12490 153 139264 0 -1000 sshd [ 457.571203] [ 3161] 0 3161 3694 40 73728 0 0 getty [ 457.579336] [ 3162] 0 3162 3694 40 73728 0 0 getty [ 457.587467] [ 3163] 0 3163 3694 41 73728 0 0 getty [ 457.595598] [ 3164] 0 3164 3694 41 73728 0 0 getty [ 457.603731] [ 3165] 0 3165 3694 41 77824 0 0 getty [ 457.611948] [ 3166] 0 3166 3694 42 73728 0 0 getty [ 457.620095] [ 3167] 0 3167 3649 39 69632 0 0 getty [ 457.628257] [ 3170] 0 3170 5681 455 90112 0 -1000 udevd [ 457.636406] [ 3171] 0 3171 5681 455 90112 0 -1000 udevd [ 457.644561] [ 3191] 0 3191 17821 199 184320 0 0 sshd [ 457.652647] [ 3193] 0 3193 280 1 32768 0 0 syzkaller005063 [ 457.661665] [ 3194] 0 3194 4371 0 32768 0 0 syzkaller005063 [ 457.670689] [ 3195] 0 3195 4371 0 32768 0 0 syzkaller005063 [ 457.679699] [ 3196] 0 3196 4371 524 36864 0 0 syzkaller005063 [ 457.688704] [ 3197] 0 3197 4371 524 36864 0 0 syzkaller005063 [ 457.697714] [ 3198] 0 3198 4371 524 36864 0 0 syzkaller005063 [ 457.706723] [ 3199] 0 3199 4371 524 36864 0 0 syzkaller005063 [ 457.715734] [ 3200] 0 3200 4371 524 36864 0 0 syzkaller005063 [ 457.724743] [ 3201] 0 3201 4371 524 36864 0 0 syzkaller005063 [ 457.733750] Out of memory: Kill process 3196 (syzkaller005063) score 0 or sacrifice child [ 457.742781] Killed process 3196 (syzkaller005063) total-vm:17484kB, anon-rss:2096kB, file-rss:0kB, shmem-rss:0kB [ 457.755626] oom_reaper: reaped process 3196 (syzkaller005063), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 457.905215] rsyslogd invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=0 [ 457.916607] rsyslogd cpuset=/ mems_allowed=0 [ 457.921031] CPU: 1 PID: 3040 Comm: rsyslogd Not tainted 4.15.0-rc5+ #170 [ 457.927838] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 457.937166] Call Trace: [ 457.939726] dump_stack+0x194/0x257 [ 457.943325] ? arch_local_irq_restore+0x53/0x53 [ 457.947966] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 457.953133] dump_header+0x28c/0xe1e [ 457.956821] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 457.961983] ? pagefault_out_of_memory+0x152/0x152 [ 457.966879] ? check_noncircular+0x20/0x20 [ 457.971082] ? print_irqtrace_events+0x270/0x270 [ 457.975810] ? __lock_acquire+0x664/0x3e00 [ 457.980034] ? check_noncircular+0x20/0x20 [ 457.984262] ? find_held_lock+0x35/0x1d0 [ 457.988317] ? check_noncircular+0x20/0x20 [ 457.992535] ? task_will_free_mem+0x252/0xaa0 [ 457.997009] ? print_irqtrace_events+0x270/0x270 [ 458.001752] ? ___ratelimit+0x30d/0x630 [ 458.005709] ? lock_downgrade+0x980/0x980 [ 458.009843] ? lock_release+0xa40/0xa40 [ 458.013810] ? mark_held_locks+0xaf/0x100 [ 458.017943] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 458.023032] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 458.028031] ? trace_hardirqs_on+0xd/0x10 [ 458.032162] ? ___ratelimit+0x95/0x630 [ 458.036035] ? idr_get_free_cmn+0xfd0/0xfd0 [ 458.040336] ? check_noncircular+0x20/0x20 [ 458.044546] ? find_held_lock+0x138/0x1d0 [ 458.048690] oom_kill_process+0x8b5/0x14a0 [ 458.052915] ? has_ns_capability_noaudit+0x163/0x2a0 [ 458.058010] ? lock_downgrade+0x980/0x980 [ 458.062149] ? oom_evaluate_task+0x480/0x480 [ 458.066554] ? security_capable_noaudit+0x8b/0xc0 [ 458.071383] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 458.076467] ? has_capability+0x30/0x30 [ 458.080420] ? do_raw_spin_trylock+0x190/0x190 [ 458.084982] ? check_noncircular+0x20/0x20 [ 458.089205] ? has_capability_noaudit+0x24/0x30 [ 458.093854] ? oom_badness+0xd1/0x980 [ 458.097634] ? lock_release+0xa40/0xa40 [ 458.101586] ? do_try_to_free_pages+0xc53/0x1020 [ 458.106324] ? find_lock_task_mm+0x460/0x460 [ 458.110722] ? find_held_lock+0x35/0x1d0 [ 458.114776] ? out_of_memory+0xb3a/0x1220 [ 458.118906] ? lock_downgrade+0x980/0x980 [ 458.123040] ? lock_release+0xa40/0xa40 [ 458.126992] ? lock_acquire+0x1d5/0x580 [ 458.130949] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 458.135874] ? oom_evaluate_task+0x284/0x480 [ 458.140274] out_of_memory+0x86d/0x1220 [ 458.144224] ? trace_hardirqs_on+0xd/0x10 [ 458.148366] ? oom_killer_disable+0x310/0x310 [ 458.152836] ? mutex_trylock+0x23a/0x2d0 [ 458.156882] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 458.162310] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 458.168190] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 458.173025] ? trace_hardirqs_on+0xd/0x10 [ 458.177179] ? warn_alloc+0x2b0/0x2b0 [ 458.180963] ? lock_downgrade+0x980/0x980 [ 458.185111] ? radix_tree_lookup_slot+0x99/0xe0 [ 458.189784] ? find_get_entry+0x53c/0x9e0 [ 458.193955] ? __lock_acquire+0x664/0x3e00 [ 458.198219] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 458.204101] ? __might_sleep+0x95/0x190 [ 458.208066] __alloc_pages_nodemask+0x9fb/0xd80 [ 458.212727] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 458.217729] ? add_to_page_cache_lru+0x510/0x510 [ 458.222480] ? check_noncircular+0x20/0x20 [ 458.226693] ? check_noncircular+0x20/0x20 [ 458.230923] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 458.235694] alloc_pages_current+0xb6/0x1e0 [ 458.240006] __page_cache_alloc+0x334/0x500 [ 458.244309] ? rcu_read_lock_held+0xa9/0xc0 [ 458.248613] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 458.255974] filemap_fault+0xefc/0x1c20 [ 458.259927] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 458.265121] ? __lock_page_or_retry+0x4f0/0x4f0 [ 458.269784] ? filemap_map_pages+0x942/0x15d0 [ 458.274284] ? find_get_entries_tag+0xeb0/0xeb0 [ 458.278931] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 458.284119] ? __unlock_page_memcg+0x72/0x100 [ 458.288597] ? check_noncircular+0x20/0x20 [ 458.292807] ? page_add_file_rmap+0x5b7/0xa90 [ 458.297294] ? print_irqtrace_events+0x270/0x270 [ 458.302029] ? print_irqtrace_events+0x270/0x270 [ 458.306770] ? __lock_is_held+0xb6/0x140 [ 458.310828] ? lock_acquire+0x1d5/0x580 [ 458.314777] ? lock_acquire+0x1d5/0x580 [ 458.318735] ? ext4_filemap_fault+0x7a/0xad [ 458.323042] ? __lock_acquire+0x664/0x3e00 [ 458.327261] ? lock_release+0xa40/0xa40 [ 458.331213] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 458.337084] ? rcu_note_context_switch+0x710/0x710 [ 458.342002] ? __might_sleep+0x95/0x190 [ 458.345965] ? down_read+0x96/0x150 [ 458.349569] ? ext4_filemap_fault+0x7a/0xad [ 458.353869] ? __down_interruptible+0x6b0/0x6b0 [ 458.358535] ext4_filemap_fault+0x82/0xad [ 458.362669] __do_fault+0xeb/0x30f [ 458.366199] ? pte_offset_kernel+0xc7/0xc7 [ 458.370419] ? do_raw_spin_trylock+0x190/0x190 [ 458.374980] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 458.379980] ? check_noncircular+0x20/0x20 [ 458.384207] __handle_mm_fault+0x1d8f/0x3ce0 [ 458.388605] ? __pmd_alloc+0x4e0/0x4e0 [ 458.392488] ? find_held_lock+0x35/0x1d0 [ 458.396542] ? handle_mm_fault+0x248/0x8d0 [ 458.400759] ? lock_downgrade+0x980/0x980 [ 458.404936] handle_mm_fault+0x334/0x8d0 [ 458.408977] ? down_read_trylock+0xdb/0x170 [ 458.413278] ? __do_page_fault+0x32d/0xc90 [ 458.417495] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 458.422052] ? vmacache_find+0x5f/0x280 [ 458.426013] ? find_vma+0x30/0x150 [ 458.429539] __do_page_fault+0x5c9/0xc90 [ 458.433581] ? vfs_copy_file_range+0x940/0x940 [ 458.438153] ? mm_fault_error+0x2c0/0x2c0 [ 458.442280] ? exit_to_usermode_loop+0x8c/0x310 [ 458.446949] do_page_fault+0xee/0x720 [ 458.450733] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 458.456250] ? __do_page_fault+0xc90/0xc90 [ 458.460480] ? syscall_return_slowpath+0x2ad/0x550 [ 458.465389] ? prepare_exit_to_usermode+0x340/0x340 [ 458.470383] ? SyS_read+0x184/0x220 [ 458.473992] ? retint_user+0x18/0x18 [ 458.477689] ? page_fault+0x36/0x60 [ 458.481299] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 458.486129] ? page_fault+0x36/0x60 [ 458.489739] page_fault+0x4c/0x60 [ 458.493169] RIP: 0033:0x7fae3ae478f0 [ 458.496858] RSP: 002b:00007fae38b13d48 EFLAGS: 00010297 [ 458.502199] RAX: 000000000000004e RBX: 000000000151fc00 RCX: 0000000000000001 [ 458.509446] RDX: 000000000000004e RSI: 00007fae3a3495a3 RDI: 0000000000000000 [ 458.516716] RBP: 000000000151fd28 R08: 00007fae3a3495a3 R09: 00000000000007e1 [ 458.523966] R10: 0000000000000010 R11: a3d70a3d70a3d70b R12: 0000000000000000 [ 458.531217] R13: 000000000000004e R14: 00007fae3a3495a3 R15: 00007fae3a3485f2 [ 458.538556] Mem-Info: [ 458.543513] active_anon:4534 inactive_anon:33 isolated_anon:0 [ 458.543513] active_file:20 inactive_file:7 isolated_file:0 [ 458.543513] unevictable:0 dirty:0 writeback:0 unstable:0 [ 458.543513] slab_reclaimable:7183 slab_unreclaimable:83668 [ 458.543513] mapped:20 shmem:40 pagetables:304 bounce:0 [ 458.543513] free:24241 free_pcp:0 free_cma:0 [ 458.575468] Node 0 active_anon:18136kB inactive_anon:132kB active_file:80kB inactive_file:28kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:80kB dirty:0kB writeback:0kB shmem:160kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 10240kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 458.602467] Node 0 DMA free:15908kB min:160kB low:200kB high:240kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 458.628601] lowmem_reserve[]: 0 2879 6391 6391 [ 458.633213] Node 0 DMA32 free:44252kB min:30368kB low:37960kB high:45552kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2950880kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 458.660384] lowmem_reserve[]: 0 0 3512 3512 [ 458.664736] Node 0 Normal free:36804kB min:37048kB low:46308kB high:55568kB active_anon:18136kB inactive_anon:132kB active_file:120kB inactive_file:76kB unevictable:0kB writepending:0kB present:4718592kB managed:3596704kB mlocked:0kB kernel_stack:2880kB pagetables:1216kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 458.693311] lowmem_reserve[]: 0 0 0 0 [ 458.697142] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 458.710776] Node 0 DMA32: 3*4kB (UM) 2*8kB (UM) 4*16kB (UM) 2*32kB (UM) 3*64kB (UM) 3*128kB (UM) 4*256kB (UM) 3*512kB (M) 4*1024kB (UM) 2*2048kB (M) 8*4096kB (M) = 44252kB [ 458.726599] Node 0 Normal: 427*4kB (UME) 356*8kB (ME) 251*16kB (UM) 175*32kB (UM) 79*64kB (UM) 37*128kB (M) 23*256kB (M) 12*512kB (UM) 1*1024kB (M) 0*2048kB 0*4096kB = 37020kB [ 458.742542] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 458.751124] 67 total pagecache pages [ 458.754848] 0 pages in swap cache [ 458.758312] Swap cache stats: add 0, delete 0, find 0/0 [ 458.763679] Free swap = 0kB [ 458.766698] Total swap = 0kB [ 458.769723] 1965979 pages RAM [ 458.772828] 0 pages HighMem/MovableOnly [ 458.776803] 325106 pages reserved [ 458.780259] Unreclaimable slab info: [ 458.783976] Name Used Total [ 458.789532] hashtab_node 118KB 119KB [ 458.794908] ebitmap_node 382KB 385KB [ 458.800282] avtab_node 1012KB 1013KB [ 458.805652] TIPC 1KB 7KB [ 458.811041] SCTPv6 2KB 4KB [ 458.816417] DCCPv6 2KB 7KB [ 458.821795] DCCP 2KB 6KB [ 458.827186] fib6_nodes 0KB 4KB [ 458.832555] ip6_dst_cache 6KB 7KB [ 458.837931] RAWv6 9KB 13KB [ 458.843302] UDPv6 12KB 14KB [ 458.848674] TCPv6 2KB 5KB [ 458.854051] sd_ext_cdb 0KB 3KB [ 458.859422] scsi_sense_cache 104KB 104KB [ 458.864791] virtio_scsi_cmd 16KB 16KB [ 458.870163] sgpool-128 8KB 8KB [ 458.875536] sgpool-64 4KB 6KB [ 458.880925] sgpool-32 149KB 149KB [ 458.886311] sgpool-16 45KB 45KB [ 458.891679] sgpool-8 194KB 195KB [ 458.897049] cfq_io_cq 18KB 19KB [ 458.902418] cfq_queue 27KB 27KB [ 458.907787] mqueue_inode_cache 1KB 7KB [ 458.913249] nfs_commit_data 3KB 7KB [ 458.918625] nfs_write_data 34KB 37KB [ 458.923996] jbd2_inode 1KB 3KB [ 458.929375] ext4_system_zone 0KB 3KB [ 458.934753] bio-1 1KB 3KB [ 458.940127] rpc_buffers 17KB 19KB [ 458.945497] rpc_tasks 2KB 3KB [ 458.950867] UNIX 1414KB 1449KB [ 458.956246] tcp_bind_bucket 0KB 4KB [ 458.961619] ip_fib_trie 0KB 3KB [ 458.966995] ip_fib_alias 0KB 3KB [ 458.972366] ip_dst_cache 3KB 8KB [ 458.977738] RAW 5KB 7KB [ 458.983110] UDP 29KB 31KB [ 458.988481] TCP 7KB 7KB [ 458.993853] hugetlbfs_inode_cache 1KB 7KB [ 458.999575] eventpoll_pwq 10KB 15KB [ 459.004945] eventpoll_epi 19KB 27KB [ 459.010318] inotify_inode_mark 4KB 7KB [ 459.015774] request_queue 31KB 39KB [ 459.021148] blkdev_ioc 23KB 23KB [ 459.026513] bio-0 337KB 337KB [ 459.031886] biovec-(1<<(21-12)) 511KB 511KB [ 459.037429] biovec-64 236KB 236KB [ 459.042798] biovec-16 26KB 26KB [ 459.048168] bio_integrity_payload 0KB 4KB [ 459.053887] khugepaged_mm_slot 0KB 3KB [ 459.059350] uid_cache 0KB 3KB [ 459.064718] dmaengine-unmap-2 0KB 3KB [ 459.070087] audit_buffer 0KB 3KB [ 459.075455] skbuff_fclone_cache 126KB 131KB [ 459.081044] skbuff_head_cache 1649KB 1676KB [ 459.086414] configfs_dir_cache 0KB 4KB [ 459.091878] file_lock_cache 153KB 154KB [ 459.097246] file_lock_ctx 1KB 3KB [ 459.102614] fsnotify_mark_connector 2KB 3KB [ 459.108505] shmem_inode_cache 876KB 879KB [ 459.113879] task_delay_info 278KB 407KB [ 459.119248] sigqueue 319KB 322KB [ 459.124618] kernfs_node_cache 1857KB 1862KB [ 459.129988] mnt_cache 14KB 20KB [ 459.135359] filp 8241KB 8276KB [ 459.140732] names_cache 114571KB 114601KB [ 459.146113] avc_node 37KB 39KB [ 459.151487] selinux_file_security 410KB 418KB [ 459.157208] selinux_inode_security 1893KB 1900KB [ 459.163030] key_jar 3KB 7KB [ 459.168402] nsproxy 0KB 3KB [ 459.173775] vm_area_struct 17038KB 17062KB [ 459.179149] mm_struct 3970KB 3984KB [ 459.184520] fs_cache 368KB 472KB [ 459.189893] files_cache 1382KB 1642KB [ 459.195261] signal_cache 2220KB 2623KB [ 459.200632] sighand_cache 203KB 256KB [ 459.205999] task_struct 9469KB 9469KB [ 459.211390] cred_jar 2201KB 2220KB [ 459.216758] anon_vma_chain 6974KB 6993KB [ 459.222131] anon_vma 139KB 288KB [ 459.233751] pid 193KB 288KB [ 459.239136] Acpi-Operand 106KB 170KB [ 459.244511] Acpi-Namespace 19KB 23KB [ 459.249887] numa_policy 0KB 3KB [ 459.255258] debug_objects_cache 444KB 446KB [ 459.260799] trace_event_file 144KB 147KB [ 459.266174] ftrace_event_field 254KB 255KB [ 459.271631] pool_workqueue 21KB 24KB [ 459.277052] page->ptl 2792KB 2802KB [ 459.282446] kmalloc-262144 1032KB 1032KB [ 459.287818] kmalloc-131072 650KB 650KB [ 459.293187] kmalloc-65536 264KB 264KB [ 459.298554] kmalloc-32768 495KB 495KB [ 459.303924] kmalloc-16384 148KB 148KB [ 459.309293] kmalloc-8192 420KB 420KB [ 459.314661] kmalloc-4096 8521KB 8555KB [ 459.320045] kmalloc-2048 2996KB 2996KB [ 459.325414] kmalloc-1024 3583KB 3583KB [ 459.330783] kmalloc-512 2895KB 3176KB [ 459.336153] kmalloc-256 1587KB 1916KB [ 459.341553] kmalloc-128 387KB 507KB [ 459.352826] kmalloc-96 1932KB 1932KB [ 459.358204] kmalloc-64 2316KB 2316KB [ 459.366085] kmalloc-32 2289KB 2291KB [ 459.378272] kmalloc-192 804KB 804KB [ 459.383649] kmem_cache 97KB 101KB [ 459.393644] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 459.402255] [ 1628] 0 1628 5385 172 90112 0 -1000 udevd [ 459.410418] [ 3036] 0 3036 14265 180 114688 0 0 rsyslogd [ 459.418818] [ 3091] 0 3091 4725 51 86016 0 0 cron [ 459.426861] [ 3115] 0 3115 3735 44 65536 0 0 mcstransd [ 459.435334] [ 3128] 0 3128 12490 153 139264 0 -1000 sshd [ 459.443372] [ 3161] 0 3161 3694 40 73728 0 0 getty [ 459.451499] [ 3162] 0 3162 3694 40 73728 0 0 getty [ 459.459624] [ 3163] 0 3163 3694 41 73728 0 0 getty [ 459.467750] [ 3164] 0 3164 3694 41 73728 0 0 getty [ 459.475878] [ 3165] 0 3165 3694 41 77824 0 0 getty [ 459.484027] [ 3166] 0 3166 3694 42 73728 0 0 getty [ 459.492153] [ 3167] 0 3167 3649 39 69632 0 0 getty [ 459.500282] [ 3170] 0 3170 5681 455 90112 0 -1000 udevd [ 459.508437] [ 3171] 0 3171 5681 455 90112 0 -1000 udevd [ 459.516598] [ 3191] 0 3191 17821 199 184320 0 0 sshd [ 459.524669] [ 3193] 0 3193 280 1 32768 0 0 syzkaller005063 [ 459.533694] [ 3194] 0 3194 4371 0 32768 0 0 syzkaller005063 [ 459.542722] [ 3195] 0 3195 4371 0 32768 0 0 syzkaller005063 [ 459.551744] [ 3196] 0 3196 4371 0 32768 0 0 syzkaller005063 [ 459.560765] [ 3197] 0 3197 4371 524 36864 0 0 syzkaller005063 [ 459.569798] [ 3198] 0 3198 4371 524 36864 0 0 syzkaller005063 [ 459.578838] [ 3199] 0 3199 4371 524 36864 0 0 syzkaller005063 [ 459.587871] [ 3200] 0 3200 4371 524 36864 0 0 syzkaller005063 [ 459.596898] [ 3201] 0 3201 4371 524 36864 0 0 syzkaller005063 [ 459.605927] Out of memory: Kill process 3197 (syzkaller005063) score 0 or sacrifice child [ 459.614282] Killed process 3197 (syzkaller005063) total-vm:17484kB, anon-rss:2096kB, file-rss:0kB, shmem-rss:0kB [ 459.626654] oom_reaper: reaped process 3197 (syzkaller005063), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 459.706430] kworker/0:0 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 459.718762] kworker/0:0 cpuset=/ mems_allowed=0 [ 459.723467] CPU: 0 PID: 3203 Comm: kworker/0:0 Not tainted 4.15.0-rc5+ #170 [ 459.730549] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 459.739892] Workqueue: events pcpu_balance_workfn [ 459.744707] Call Trace: [ 459.747276] dump_stack+0x194/0x257 [ 459.750885] ? arch_local_irq_restore+0x53/0x53 [ 459.755533] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 459.760707] dump_header+0x28c/0xe1e [ 459.764408] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 459.769586] ? pagefault_out_of_memory+0x152/0x152 [ 459.774492] ? check_noncircular+0x20/0x20 [ 459.778707] ? print_irqtrace_events+0x270/0x270 [ 459.783956] ? __lock_acquire+0x664/0x3e00 [ 459.788164] ? _raw_spin_unlock_irq+0x27/0x70 [ 459.792638] ? check_noncircular+0x20/0x20 [ 459.796849] ? find_held_lock+0x35/0x1d0 [ 459.800890] ? check_noncircular+0x20/0x20 [ 459.805101] ? task_will_free_mem+0x252/0xaa0 [ 459.809587] ? print_irqtrace_events+0x270/0x270 [ 459.814338] ? ___ratelimit+0x30d/0x630 [ 459.818297] ? lock_downgrade+0x980/0x980 [ 459.822437] ? lock_release+0xa40/0xa40 [ 459.826404] ? mark_held_locks+0xaf/0x100 [ 459.831356] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 459.836447] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 459.841449] ? trace_hardirqs_on+0xd/0x10 [ 459.845587] ? ___ratelimit+0x95/0x630 [ 459.849458] ? idr_get_free_cmn+0xfd0/0xfd0 [ 459.853759] ? check_noncircular+0x20/0x20 [ 459.857962] ? find_held_lock+0x138/0x1d0 [ 459.862099] oom_kill_process+0x8b5/0x14a0 [ 459.866327] ? has_ns_capability_noaudit+0x163/0x2a0 [ 459.871417] ? lock_downgrade+0x980/0x980 [ 459.875559] ? oom_evaluate_task+0x480/0x480 [ 459.879953] ? security_capable_noaudit+0x8b/0xc0 [ 459.884769] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 459.889841] ? has_capability+0x30/0x30 [ 459.893793] ? do_raw_spin_trylock+0x190/0x190 [ 459.898355] ? check_noncircular+0x20/0x20 [ 459.902595] ? has_capability_noaudit+0x24/0x30 [ 459.907244] ? oom_badness+0xd1/0x980 [ 459.911022] ? lock_release+0xa40/0xa40 [ 459.914975] ? find_lock_task_mm+0x460/0x460 [ 459.919371] ? find_held_lock+0x35/0x1d0 [ 459.923426] ? out_of_memory+0xb3a/0x1220 [ 459.927558] ? lock_downgrade+0x980/0x980 [ 459.931685] ? lock_release+0xa40/0xa40 [ 459.935632] ? lock_acquire+0x1d5/0x580 [ 459.939589] ? blocking_notifier_call_chain+0x112/0x190 [ 459.944923] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 459.949828] ? oom_evaluate_task+0x284/0x480 [ 459.954315] out_of_memory+0x86d/0x1220 [ 459.958271] ? find_next_bit+0x27/0x30 [ 459.962158] ? oom_killer_disable+0x310/0x310 [ 459.966629] ? mutex_trylock+0x23a/0x2d0 [ 459.970666] ? __lock_is_held+0xb6/0x140 [ 459.974701] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 459.980148] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 459.984989] ? warn_alloc+0x2b0/0x2b0 [ 459.988760] ? lock_release+0xa40/0xa40 [ 459.992718] ? print_irqtrace_events+0x270/0x270 [ 459.997456] ? lock_release+0xa40/0xa40 [ 460.001428] ? mutex_spin_on_owner+0x446/0xb50 [ 460.005995] ? __lock_acquire+0x664/0x3e00 [ 460.010216] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 460.016088] ? lock_release+0xa40/0xa40 [ 460.020078] ? __lock_is_held+0xb6/0x140 [ 460.024151] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 460.030035] ? __might_sleep+0x95/0x190 [ 460.033990] __alloc_pages_nodemask+0x9fb/0xd80 [ 460.038644] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 460.043629] ? __lock_acquire+0x664/0x3e00 [ 460.047836] ? __lock_acquire+0x664/0x3e00 [ 460.052056] ? print_irqtrace_events+0x270/0x270 [ 460.056792] ? __lock_is_held+0xb6/0x140 [ 460.060827] ? find_next_bit+0x27/0x30 [ 460.064686] pcpu_populate_chunk+0x1b3/0x880 [ 460.069091] pcpu_balance_workfn+0xf3e/0x1520 [ 460.073570] ? check_noncircular+0x20/0x20 [ 460.077780] ? find_held_lock+0x35/0x1d0 [ 460.081821] ? pcpu_create_chunk+0x900/0x900 [ 460.086207] ? lock_release+0xa40/0xa40 [ 460.090168] ? check_noncircular+0x20/0x20 [ 460.094394] ? lock_acquire+0x1d5/0x580 [ 460.098349] ? lock_acquire+0x1d5/0x580 [ 460.102307] ? process_one_work+0xb01/0x1b10 [ 460.106711] ? __lock_is_held+0xb6/0x140 [ 460.110753] process_one_work+0xbbf/0x1b10 [ 460.114959] ? trace_hardirqs_on+0xd/0x10 [ 460.119103] ? pwq_dec_nr_in_flight+0x450/0x450 [ 460.123758] ? __schedule+0x8f3/0x2060 [ 460.127625] ? check_noncircular+0x20/0x20 [ 460.131838] ? __lock_is_held+0xb6/0x140 [ 460.135896] ? lock_acquire+0x1d5/0x580 [ 460.139840] ? lock_acquire+0x1d5/0x580 [ 460.143798] ? worker_thread+0x4a3/0x1990 [ 460.147926] ? lock_downgrade+0x980/0x980 [ 460.152059] ? lock_release+0xa40/0xa40 [ 460.156018] ? worker_pool_assign_id+0x1b0/0x1b0 [ 460.160753] ? do_raw_spin_trylock+0x190/0x190 [ 460.165339] worker_thread+0x223/0x1990 [ 460.169339] ? process_one_work+0x1b10/0x1b10 [ 460.173816] ? _raw_spin_unlock_irq+0x27/0x70 [ 460.178300] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 460.183305] ? trace_hardirqs_on+0xd/0x10 [ 460.187434] ? _raw_spin_unlock_irq+0x27/0x70 [ 460.191907] ? finish_task_switch+0x1d3/0x740 [ 460.196374] ? finish_task_switch+0x1aa/0x740 [ 460.200848] ? copy_overflow+0x20/0x20 [ 460.204717] ? __schedule+0x8f3/0x2060 [ 460.208603] ? find_held_lock+0x35/0x1d0 [ 460.212641] ? find_held_lock+0x35/0x1d0 [ 460.216677] ? complete+0x62/0x80 [ 460.220122] ? __schedule+0x2060/0x2060 [ 460.224075] ? do_wait_intr_irq+0x3e0/0x3e0 [ 460.228375] ? __lockdep_init_map+0xe4/0x650 [ 460.232759] ? do_raw_spin_trylock+0x190/0x190 [ 460.237321] ? lockdep_init_map+0x9/0x10 [ 460.241361] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 460.246450] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 460.251448] ? trace_hardirqs_on+0xd/0x10 [ 460.255577] ? __kthread_parkme+0x175/0x240 [ 460.259875] kthread+0x33c/0x400 [ 460.263216] ? process_one_work+0x1b10/0x1b10 [ 460.267684] ? kthread_stop+0x7a0/0x7a0 [ 460.271634] ret_from_fork+0x24/0x30 [ 460.275445] Mem-Info: [ 460.279069] active_anon:4017 inactive_anon:33 isolated_anon:0 [ 460.279069] active_file:2 inactive_file:6 isolated_file:0 [ 460.279069] unevictable:0 dirty:0 writeback:0 unstable:0 [ 460.279069] slab_reclaimable:7185 slab_unreclaimable:83675 [ 460.279069] mapped:15 shmem:40 pagetables:303 bounce:0 [ 460.279069] free:24135 free_pcp:7 free_cma:0 [ 460.310947] Node 0 active_anon:16068kB inactive_anon:132kB active_file:52kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:60kB dirty:0kB writeback:0kB shmem:160kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 8192kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 460.337763] Node 0 DMA free:15908kB min:160kB low:200kB high:240kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 460.363878] lowmem_reserve[]: 0 2879 6391 6391 [ 460.368477] Node 0 DMA32 free:44252kB min:30368kB low:37960kB high:45552kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2950880kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 460.395645] lowmem_reserve[]: 0 0 3512 3512 [ 460.400032] Node 0 Normal free:36380kB min:37048kB low:46308kB high:55568kB active_anon:16068kB inactive_anon:132kB active_file:52kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3596704kB mlocked:0kB kernel_stack:2880kB pagetables:1212kB bounce:0kB free_pcp:28kB local_pcp:28kB free_cma:0kB [ 460.428678] lowmem_reserve[]: 0 0 0 0 [ 460.432490] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 460.446126] Node 0 DMA32: 3*4kB (UM) 2*8kB (UM) 4*16kB (UM) 2*32kB (UM) 3*64kB (UM) 3*128kB (UM) 4*256kB (UM) 3*512kB (M) 4*1024kB (UM) 2*2048kB (M) 8*4096kB (M) = 44252kB [ 460.461680] Node 0 Normal: 452*4kB (UME) 357*8kB (UME) 250*16kB (UM) 174*32kB (UM) 80*64kB (UME) 37*128kB (UM) 23*256kB (M) 11*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 36632kB [ 460.477689] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 460.486271] 80 total pagecache pages [ 460.489976] 0 pages in swap cache [ 460.493427] Swap cache stats: add 0, delete 0, find 0/0 [ 460.498789] Free swap = 0kB [ 460.501798] Total swap = 0kB [ 460.504801] 1965979 pages RAM [ 460.507890] 0 pages HighMem/MovableOnly [ 460.511846] 325106 pages reserved [ 460.515298] Unreclaimable slab info: [ 460.519003] Name Used Total [ 460.524564] hashtab_node 118KB 119KB [ 460.529918] ebitmap_node 382KB 385KB [ 460.535304] avtab_node 1012KB 1013KB [ 460.540669] TIPC 1KB 7KB [ 460.546046] SCTPv6 2KB 4KB [ 460.551424] DCCPv6 2KB 7KB [ 460.556782] DCCP 2KB 6KB [ 460.562164] fib6_nodes 0KB 4KB [ 460.567546] ip6_dst_cache 6KB 7KB [ 460.572903] RAWv6 9KB 13KB [ 460.578273] UDPv6 12KB 14KB [ 460.583641] TCPv6 2KB 5KB [ 460.588999] sd_ext_cdb 0KB 3KB [ 460.594375] scsi_sense_cache 104KB 104KB [ 460.599731] virtio_scsi_cmd 16KB 16KB [ 460.605101] sgpool-128 8KB 8KB [ 460.610471] sgpool-64 4KB 6KB [ 460.615828] sgpool-32 157KB 157KB [ 460.621191] sgpool-16 45KB 45KB [ 460.626560] sgpool-8 194KB 195KB [ 460.631930] cfq_io_cq 18KB 19KB [ 460.637296] cfq_queue 27KB 27KB [ 460.642662] mqueue_inode_cache 1KB 7KB [ 460.648118] nfs_commit_data 3KB 7KB [ 460.653489] nfs_write_data 34KB 37KB [ 460.658849] jbd2_inode 1KB 3KB [ 460.664215] ext4_system_zone 0KB 3KB [ 460.669592] bio-1 1KB 3KB [ 460.674947] rpc_buffers 17KB 19KB [ 460.680309] rpc_tasks 2KB 3KB [ 460.685670] UNIX 1414KB 1449KB [ 460.691045] tcp_bind_bucket 0KB 4KB [ 460.696426] ip_fib_trie 0KB 3KB [ 460.701782] ip_fib_alias 0KB 3KB [ 460.707148] ip_dst_cache 3KB 8KB [ 460.712521] RAW 5KB 7KB [ 460.717875] UDP 29KB 31KB [ 460.723242] TCP 7KB 7KB [ 460.728603] hugetlbfs_inode_cache 1KB 7KB [ 460.734316] eventpoll_pwq 10KB 15KB [ 460.739669] eventpoll_epi 19KB 27KB [ 460.745037] inotify_inode_mark 4KB 7KB [ 460.750496] request_queue 31KB 39KB [ 460.755850] blkdev_ioc 23KB 23KB [ 460.761210] bio-0 341KB 341KB [ 460.766579] biovec-(1<<(21-12)) 511KB 511KB [ 460.772119] biovec-64 244KB 244KB [ 460.777489] biovec-16 30KB 30KB [ 460.782843] bio_integrity_payload 0KB 4KB [ 460.788552] khugepaged_mm_slot 0KB 3KB [ 460.794037] uid_cache 0KB 3KB [ 460.799409] dmaengine-unmap-2 0KB 3KB [ 460.804763] audit_buffer 0KB 3KB [ 460.810128] skbuff_fclone_cache 126KB 131KB [ 460.815660] skbuff_head_cache 1649KB 1676KB [ 460.821032] configfs_dir_cache 0KB 4KB [ 460.826489] file_lock_cache 153KB 154KB [ 460.831841] file_lock_ctx 1KB 3KB [ 460.837201] fsnotify_mark_connector 2KB 3KB [ 460.843095] shmem_inode_cache 876KB 879KB [ 460.848466] task_delay_info 278KB 407KB [ 460.853819] sigqueue 319KB 322KB [ 460.859181] kernfs_node_cache 1857KB 1862KB [ 460.864545] mnt_cache 14KB 20KB [ 460.869899] filp 8241KB 8276KB [ 460.875262] names_cache 114571KB 114601KB [ 460.880617] avc_node 37KB 39KB [ 460.885963] selinux_file_security 410KB 418KB [ 460.891655] selinux_inode_security 1893KB 1900KB [ 460.897451] key_jar 3KB 7KB [ 460.902806] nsproxy 0KB 3KB [ 460.908166] vm_area_struct 17038KB 17062KB [ 460.913535] mm_struct 3970KB 3984KB [ 460.918889] fs_cache 368KB 472KB [ 460.924267] files_cache 1382KB 1642KB [ 460.929620] signal_cache 2220KB 2623KB [ 460.934965] sighand_cache 203KB 256KB [ 460.940325] task_struct 9469KB 9469KB [ 460.945682] cred_jar 2201KB 2220KB [ 460.951040] anon_vma_chain 6974KB 6993KB [ 460.956410] anon_vma 139KB 288KB [ 460.961764] pid 193KB 288KB [ 460.967123] Acpi-Operand 106KB 170KB [ 460.972495] Acpi-Namespace 19KB 23KB [ 460.977850] numa_policy 0KB 3KB [ 460.983217] debug_objects_cache 444KB 446KB [ 460.988743] trace_event_file 144KB 147KB [ 460.994102] ftrace_event_field 254KB 255KB [ 460.999558] pool_workqueue 21KB 24KB [ 461.004914] page->ptl 2792KB 2802KB [ 461.010306] kmalloc-262144 1032KB 1032KB [ 461.015660] kmalloc-131072 650KB 650KB [ 461.021025] kmalloc-65536 264KB 264KB [ 461.026395] kmalloc-32768 495KB 495KB [ 461.031748] kmalloc-16384 148KB 148KB [ 461.037107] kmalloc-8192 420KB 420KB [ 461.042475] kmalloc-4096 8521KB 8555KB [ 461.047828] kmalloc-2048 2996KB 2996KB [ 461.053274] kmalloc-1024 3606KB 3606KB [ 461.058625] kmalloc-512 2895KB 3176KB [ 461.063972] kmalloc-256 1587KB 1916KB [ 461.069331] kmalloc-128 387KB 507KB [ 461.074688] kmalloc-96 1932KB 1932KB [ 461.080051] kmalloc-64 2316KB 2316KB [ 461.085418] kmalloc-32 2289KB 2291KB [ 461.091906] kmalloc-192 804KB 804KB [ 461.097273] kmem_cache 97KB 101KB [ 461.102630] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 461.111249] [ 1628] 0 1628 5385 172 90112 0 -1000 udevd [ 461.119409] [ 3036] 0 3036 14265 180 114688 0 0 rsyslogd [ 461.127811] [ 3091] 0 3091 4725 51 86016 0 0 cron [ 461.135858] [ 3115] 0 3115 3735 44 65536 0 0 mcstransd [ 461.144361] [ 3128] 0 3128 12490 153 139264 0 -1000 sshd [ 461.152433] [ 3161] 0 3161 3694 40 73728 0 0 getty [ 461.160588] [ 3162] 0 3162 3694 40 73728 0 0 getty [ 461.168734] [ 3163] 0 3163 3694 41 73728 0 0 getty [ 461.176873] [ 3164] 0 3164 3694 41 73728 0 0 getty [ 461.185033] [ 3165] 0 3165 3694 41 77824 0 0 getty [ 461.193190] [ 3166] 0 3166 3694 42 73728 0 0 getty [ 461.201347] [ 3167] 0 3167 3649 39 69632 0 0 getty [ 461.209506] [ 3170] 0 3170 5681 455 90112 0 -1000 udevd [ 461.217644] [ 3171] 0 3171 5681 455 90112 0 -1000 udevd [ 461.225779] [ 3191] 0 3191 17821 199 184320 0 0 sshd [ 461.233824] [ 3193] 0 3193 280 1 32768 0 0 syzkaller005063 [ 461.242826] [ 3194] 0 3194 4371 0 32768 0 0 syzkaller005063 [ 461.251837] [ 3195] 0 3195 4371 0 32768 0 0 syzkaller005063 [ 461.260850] [ 3196] 0 3196 4371 0 32768 0 0 syzkaller005063 [ 461.269860] [ 3197] 0 3197 4371 0 32768 0 0 syzkaller005063 [ 461.278869] [ 3198] 0 3198 4371 524 36864 0 0 syzkaller005063 [ 461.287871] [ 3199] 0 3199 4371 524 36864 0 0 syzkaller005063 [ 461.296875] [ 3200] 0 3200 4371 524 36864 0 0 syzkaller005063 [ 461.305879] [ 3201] 0 3201 4371 524 36864 0 0 syzkaller005063 [ 461.314878] Out of memory: Kill process 3198 (syzkaller005063) score 0 or sacrifice child [ 461.323220] Killed process 3198 (syzkaller005063) total-vm:17484kB, anon-rss:2096kB, file-rss:0kB, shmem-rss:0kB [ 461.335640] oom_reaper: reaped process 3198 (syzkaller005063), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 461.424615] rs:main Q:Reg invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=0 [ 461.436427] rs:main Q:Reg cpuset=/ mems_allowed=0 [ 461.441268] CPU: 0 PID: 3037 Comm: rs:main Q:Reg Not tainted 4.15.0-rc5+ #170 [ 461.448505] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 461.457822] Call Trace: [ 461.460381] dump_stack+0x194/0x257 [ 461.463978] ? arch_local_irq_restore+0x53/0x53 [ 461.468633] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 461.473808] dump_header+0x28c/0xe1e [ 461.477498] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 461.482670] ? pagefault_out_of_memory+0x152/0x152 [ 461.487574] ? check_noncircular+0x20/0x20 [ 461.491779] ? print_irqtrace_events+0x270/0x270 [ 461.496516] ? __lock_acquire+0x664/0x3e00 [ 461.500728] ? check_noncircular+0x20/0x20 [ 461.504938] ? find_held_lock+0x35/0x1d0 [ 461.508972] ? check_noncircular+0x20/0x20 [ 461.513180] ? task_will_free_mem+0x252/0xaa0 [ 461.517650] ? print_irqtrace_events+0x270/0x270 [ 461.522394] ? ___ratelimit+0x30d/0x630 [ 461.526355] ? lock_downgrade+0x980/0x980 [ 461.530491] ? lock_release+0xa40/0xa40 [ 461.534455] ? mark_held_locks+0xaf/0x100 [ 461.538588] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 461.543670] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 461.548657] ? trace_hardirqs_on+0xd/0x10 [ 461.552780] ? ___ratelimit+0x95/0x630 [ 461.556640] ? idr_get_free_cmn+0xfd0/0xfd0 [ 461.560930] ? check_noncircular+0x20/0x20 [ 461.565136] ? find_held_lock+0x138/0x1d0 [ 461.569261] oom_kill_process+0x8b5/0x14a0 [ 461.573467] ? has_ns_capability_noaudit+0x163/0x2a0 [ 461.578548] ? lock_downgrade+0x980/0x980 [ 461.582679] ? oom_evaluate_task+0x480/0x480 [ 461.587067] ? security_capable_noaudit+0x8b/0xc0 [ 461.591890] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 461.596964] ? has_capability+0x30/0x30 [ 461.600908] ? do_raw_spin_trylock+0x190/0x190 [ 461.605460] ? check_noncircular+0x20/0x20 [ 461.609669] ? has_capability_noaudit+0x24/0x30 [ 461.614319] ? oom_badness+0xd1/0x980 [ 461.618101] ? lock_release+0xa40/0xa40 [ 461.622054] ? do_try_to_free_pages+0xc53/0x1020 [ 461.626786] ? find_lock_task_mm+0x460/0x460 [ 461.631173] ? find_held_lock+0x35/0x1d0 [ 461.635210] ? out_of_memory+0xb3a/0x1220 [ 461.639337] ? lock_downgrade+0x980/0x980 [ 461.643459] ? lock_release+0xa40/0xa40 [ 461.647400] ? lock_acquire+0x1d5/0x580 [ 461.651347] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 461.656266] ? oom_evaluate_task+0x284/0x480 [ 461.660653] out_of_memory+0x86d/0x1220 [ 461.664855] ? trace_hardirqs_on+0xd/0x10 [ 461.668985] ? oom_killer_disable+0x310/0x310 [ 461.673447] ? mutex_trylock+0x23a/0x2d0 [ 461.677478] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 461.682895] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 461.688757] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 461.693577] ? trace_hardirqs_on+0xd/0x10 [ 461.697709] ? warn_alloc+0x2b0/0x2b0 [ 461.701478] ? lock_downgrade+0x980/0x980 [ 461.705602] ? __lock_is_held+0xb6/0x140 [ 461.709647] ? find_get_entry+0x53c/0x9e0 [ 461.713786] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 461.718780] ? __lock_acquire+0x664/0x3e00 [ 461.723015] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 461.728879] ? __might_sleep+0x95/0x190 [ 461.732830] __alloc_pages_nodemask+0x9fb/0xd80 [ 461.737476] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 461.742499] ? add_to_page_cache_lru+0x510/0x510 [ 461.747243] ? check_noncircular+0x20/0x20 [ 461.751449] ? check_noncircular+0x20/0x20 [ 461.755654] ? kmem_cache_free+0x83/0x2a0 [ 461.759776] ? jbd2_journal_stop+0x482/0x1490 [ 461.764260] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 461.769015] alloc_pages_current+0xb6/0x1e0 [ 461.773317] __page_cache_alloc+0x334/0x500 [ 461.777615] ? rcu_read_lock_held+0xa9/0xc0 [ 461.781919] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 461.789266] filemap_fault+0xefc/0x1c20 [ 461.793217] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 461.798407] ? __lock_page_or_retry+0x4f0/0x4f0 [ 461.803064] ? filemap_map_pages+0x942/0x15d0 [ 461.807546] ? find_get_entries_tag+0xeb0/0xeb0 [ 461.812203] ? balance_dirty_pages_ratelimited+0x1be/0x1bb0 [ 461.817893] ? lock_release+0xa40/0xa40 [ 461.821854] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 461.827712] ? check_noncircular+0x20/0x20 [ 461.832626] ? balance_dirty_pages+0x3440/0x3440 [ 461.837359] ? generic_write_end+0x2c3/0x460 [ 461.841743] ? print_irqtrace_events+0x270/0x270 [ 461.846475] ? print_irqtrace_events+0x270/0x270 [ 461.851209] ? print_irqtrace_events+0x270/0x270 [ 461.855936] ? check_noncircular+0x20/0x20 [ 461.860166] ? up_write+0x6b/0x120 [ 461.863693] ? lock_acquire+0x1d5/0x580 [ 461.867637] ? lock_acquire+0x1d5/0x580 [ 461.871586] ? ext4_filemap_fault+0x7a/0xad [ 461.875879] ? __lock_acquire+0x664/0x3e00 [ 461.880098] ? lock_release+0xa40/0xa40 [ 461.884052] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 461.889925] ? rcu_note_context_switch+0x710/0x710 [ 461.894826] ? __might_sleep+0x95/0x190 [ 461.898771] ? down_read+0x96/0x150 [ 461.902371] ? ext4_filemap_fault+0x7a/0xad [ 461.906666] ? __down_interruptible+0x6b0/0x6b0 [ 461.911315] ext4_filemap_fault+0x82/0xad [ 461.915436] __do_fault+0xeb/0x30f [ 461.918958] ? pte_offset_kernel+0xc7/0xc7 [ 461.923162] ? generic_update_time+0x1b2/0x270 [ 461.927717] ? do_raw_spin_trylock+0x190/0x190 [ 461.932283] ? check_noncircular+0x20/0x20 [ 461.936514] __handle_mm_fault+0x1d8f/0x3ce0 [ 461.940906] ? __pmd_alloc+0x4e0/0x4e0 [ 461.944768] ? find_held_lock+0x35/0x1d0 [ 461.948805] ? handle_mm_fault+0x248/0x8d0 [ 461.953011] ? lock_downgrade+0x980/0x980 [ 461.957152] handle_mm_fault+0x334/0x8d0 [ 461.961180] ? down_read_trylock+0xdb/0x170 [ 461.965468] ? __do_page_fault+0x32d/0xc90 [ 461.969670] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 461.974223] ? vmacache_find+0x5f/0x280 [ 461.978186] ? find_vma+0x30/0x150 [ 461.981706] __do_page_fault+0x5c9/0xc90 [ 461.985740] ? vfs_write+0x374/0x510 [ 461.989428] ? mm_fault_error+0x2c0/0x2c0 [ 461.993546] ? __lock_is_held+0xb6/0x140 [ 461.997583] do_page_fault+0xee/0x720 [ 462.001357] ? __do_page_fault+0xc90/0xc90 [ 462.005563] ? __sb_end_write+0xa0/0xd0 [ 462.009518] ? fput+0xd2/0x140 [ 462.012683] ? SyS_write+0x184/0x220 [ 462.016375] ? retint_user+0x18/0x18 [ 462.020073] ? page_fault+0x36/0x60 [ 462.023676] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 462.028500] ? page_fault+0x36/0x60 [ 462.032116] page_fault+0x4c/0x60 [ 462.035549] RIP: 0033:0x40b0d0 [ 462.038708] RSP: 002b:00007fae39b15578 EFLAGS: 00010246 [ 462.044043] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 [ 462.051290] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007fae39b155c0 [ 462.058534] RBP: 00000000014f8a38 R08: 00000000014febb0 R09: 0000000000000bdd [ 462.065781] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 462.073021] R13: 0000000000000000 R14: 00000000014feb00 R15: 000000000151cc40 [ 462.080401] Mem-Info: [ 462.083776] active_anon:3501 inactive_anon:33 isolated_anon:0 [ 462.083776] active_file:18 inactive_file:12 isolated_file:0 [ 462.083776] unevictable:0 dirty:0 writeback:1 unstable:0 [ 462.083776] slab_reclaimable:7189 slab_unreclaimable:83716 [ 462.083776] mapped:9 shmem:40 pagetables:303 bounce:0 [ 462.083776] free:24270 free_pcp:7 free_cma:0 [ 462.115768] Node 0 active_anon:14004kB inactive_anon:132kB active_file:72kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:36kB dirty:0kB writeback:4kB shmem:160kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 8192kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 462.142629] Node 0 DMA free:15908kB min:160kB low:200kB high:240kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 462.169871] lowmem_reserve[]: 0 2879 6391 6391 [ 462.183922] Node 0 DMA32 free:44252kB min:30368kB low:37960kB high:45552kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2950880kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 462.212036] lowmem_reserve[]: 0 0 3512 3512 [ 462.216401] Node 0 Normal free:36868kB min:37048kB low:46308kB high:55568kB active_anon:14004kB inactive_anon:132kB active_file:0kB inactive_file:172kB unevictable:0kB writepending:4kB present:4718592kB managed:3596704kB mlocked:0kB kernel_stack:2880kB pagetables:1212kB bounce:0kB free_pcp:248kB local_pcp:152kB free_cma:0kB [ 462.245971] lowmem_reserve[]: 0 0 0 0 [ 462.249812] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 462.264122] Node 0 DMA32: 3*4kB (UM) 2*8kB (UM) 4*16kB (UM) 2*32kB (UM) 3*64kB (UM) 3*128kB (UM) 4*256kB (UM) 3*512kB (M) 4*1024kB (UM) 2*2048kB (M) 8*4096kB (M) = 44252kB [ 462.279997] Node 0 Normal: 384*4kB (ME) 347*8kB (UME) 243*16kB (UM) 170*32kB (M) 77*64kB (UME) 35*128kB (UM) 23*256kB (M) 11*512kB (M) 0*1024kB 1*2048kB (E) 0*4096kB = 36616kB [ 462.295994] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 462.304587] 100 total pagecache pages [ 462.308409] 0 pages in swap cache [ 462.311872] Swap cache stats: add 0, delete 0, find 0/0 [ 462.317241] Free swap = 0kB [ 462.320265] Total swap = 0kB [ 462.323290] 1965979 pages RAM [ 462.326399] 0 pages HighMem/MovableOnly [ 462.330368] 325106 pages reserved [ 462.333821] Unreclaimable slab info: [ 462.337544] Name Used Total [ 462.343097] hashtab_node 118KB 119KB [ 462.348474] ebitmap_node 382KB 385KB [ 462.353836] avtab_node 1012KB 1013KB [ 462.359208] TIPC 1KB 7KB [ 462.364592] SCTPv6 2KB 4KB [ 462.369962] DCCPv6 2KB 7KB [ 462.375359] DCCP 2KB 6KB [ 462.380758] fib6_nodes 0KB 4KB [ 462.386119] ip6_dst_cache 6KB 7KB [ 462.391494] RAWv6 9KB 13KB [ 462.396855] UDPv6 12KB 14KB [ 462.402233] TCPv6 2KB 5KB [ 462.407624] sd_ext_cdb 0KB 3KB [ 462.412991] scsi_sense_cache 112KB 112KB [ 462.418370] virtio_scsi_cmd 16KB 16KB [ 462.423751] sgpool-128 8KB 8KB [ 462.429126] sgpool-64 4KB 6KB [ 462.434507] sgpool-32 204KB 204KB [ 462.439886] sgpool-16 52KB 52KB [ 462.445243] sgpool-8 198KB 198KB [ 462.450622] cfq_io_cq 17KB 19KB [ 462.455985] cfq_queue 26KB 27KB [ 462.461364] mqueue_inode_cache 1KB 7KB [ 462.466835] nfs_commit_data 3KB 7KB [ 462.472194] nfs_write_data 34KB 37KB [ 462.477567] jbd2_inode 1KB 3KB [ 462.482936] ext4_system_zone 0KB 3KB [ 462.488317] bio-1 1KB 3KB [ 462.493703] rpc_buffers 17KB 19KB [ 462.499083] rpc_tasks 2KB 3KB [ 462.504462] UNIX 1405KB 1449KB [ 462.509844] tcp_bind_bucket 0KB 4KB [ 462.515204] ip_fib_trie 0KB 3KB [ 462.520576] ip_fib_alias 0KB 3KB [ 462.525957] ip_dst_cache 3KB 8KB [ 462.531318] RAW 5KB 7KB [ 462.536691] UDP 29KB 31KB [ 462.542067] TCP 7KB 7KB [ 462.547446] hugetlbfs_inode_cache 1KB 7KB [ 462.553173] eventpoll_pwq 10KB 15KB [ 462.558551] eventpoll_epi 19KB 27KB [ 462.563917] inotify_inode_mark 4KB 7KB [ 462.569394] request_queue 31KB 39KB [ 462.574775] blkdev_ioc 22KB 23KB [ 462.580141] bio-0 363KB 363KB [ 462.585512] biovec-(1<<(21-12)) 519KB 519KB [ 462.591061] biovec-64 291KB 291KB [ 462.596438] biovec-16 30KB 30KB [ 462.601815] bio_integrity_payload 0KB 4KB [ 462.607558] khugepaged_mm_slot 0KB 3KB [ 462.613038] uid_cache 0KB 3KB [ 462.618434] dmaengine-unmap-2 0KB 3KB [ 462.623815] audit_buffer 0KB 3KB [ 462.629174] skbuff_fclone_cache 126KB 131KB [ 462.634744] skbuff_head_cache 1645KB 1672KB [ 462.640138] configfs_dir_cache 0KB 4KB [ 462.645607] file_lock_cache 153KB 154KB [ 462.650968] file_lock_ctx 1KB 3KB [ 462.656341] fsnotify_mark_connector 2KB 3KB [ 462.662237] shmem_inode_cache 876KB 879KB [ 462.667642] task_delay_info 278KB 407KB [ 462.673028] sigqueue 317KB 322KB [ 462.678405] kernfs_node_cache 1857KB 1862KB [ 462.683784] mnt_cache 14KB 20KB [ 462.689152] filp 8234KB 8268KB [ 462.694521] names_cache 114563KB 114601KB [ 462.699907] avc_node 37KB 39KB [ 462.705276] selinux_file_security 409KB 418KB [ 462.710986] selinux_inode_security 1893KB 1900KB [ 462.716793] key_jar 3KB 7KB [ 462.722151] nsproxy 0KB 3KB [ 462.727521] vm_area_struct 17035KB 17058KB [ 462.732896] mm_struct 3970KB 3984KB [ 462.738250] fs_cache 368KB 472KB [ 462.743619] files_cache 1382KB 1642KB [ 462.748982] signal_cache 2220KB 2623KB [ 462.754399] sighand_cache 203KB 256KB [ 462.759783] task_struct 9469KB 9469KB [ 462.765141] cred_jar 2200KB 2220KB [ 462.770519] anon_vma_chain 6974KB 6993KB [ 462.775896] anon_vma 133KB 288KB [ 462.781251] pid 193KB 288KB [ 462.786620] Acpi-Operand 106KB 170KB [ 462.792000] Acpi-Namespace 19KB 23KB [ 462.797406] numa_policy 0KB 3KB [ 462.802769] debug_objects_cache 444KB 446KB [ 462.808312] trace_event_file 144KB 147KB [ 462.813691] ftrace_event_field 254KB 255KB [ 462.819146] pool_workqueue 21KB 24KB [ 462.824517] page->ptl 2791KB 2802KB [ 462.829922] kmalloc-262144 1032KB 1032KB [ 462.835276] kmalloc-131072 650KB 650KB [ 462.840644] kmalloc-65536 264KB 264KB [ 462.846039] kmalloc-32768 495KB 495KB [ 462.851415] kmalloc-16384 148KB 148KB [ 462.856795] kmalloc-8192 420KB 420KB [ 462.862162] kmalloc-4096 8512KB 8551KB [ 462.867531] kmalloc-2048 2996KB 2996KB [ 462.872911] kmalloc-1024 3669KB 3669KB [ 462.878265] kmalloc-512 2888KB 3168KB [ 462.883636] kmalloc-256 1584KB 1912KB [ 462.888997] kmalloc-128 387KB 507KB [ 462.894374] kmalloc-96 1932KB 1932KB [ 462.899752] kmalloc-64 2316KB 2316KB [ 462.905114] kmalloc-32 2289KB 2291KB [ 462.910482] kmalloc-192 804KB 804KB [ 462.915857] kmem_cache 97KB 101KB [ 462.921229] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 462.929842] [ 1628] 0 1628 5385 172 90112 0 -1000 udevd [ 462.938012] [ 3036] 0 3036 14265 180 114688 0 0 rsyslogd [ 462.946466] [ 3091] 0 3091 4725 51 86016 0 0 cron [ 462.954553] [ 3115] 0 3115 3735 44 65536 0 0 mcstransd [ 462.963097] [ 3128] 0 3128 12490 153 139264 0 -1000 sshd [ 462.971184] [ 3161] 0 3161 3694 40 73728 0 0 getty [ 462.979356] [ 3162] 0 3162 3694 40 73728 0 0 getty [ 462.987520] [ 3163] 0 3163 3694 41 73728 0 0 getty [ 462.995709] [ 3164] 0 3164 3694 41 73728 0 0 getty [ 463.003872] [ 3165] 0 3165 3694 41 77824 0 0 getty [ 463.012051] [ 3166] 0 3166 3694 42 73728 0 0 getty [ 463.020307] [ 3167] 0 3167 3649 39 69632 0 0 getty [ 463.028499] [ 3170] 0 3170 5681 455 90112 0 -1000 udevd [ 463.036664] [ 3171] 0 3171 5681 455 90112 0 -1000 udevd [ 463.044918] [ 3191] 0 3191 17821 199 184320 0 0 sshd [ 463.052998] [ 3193] 0 3193 280 1 32768 0 0 syzkaller005063 [ 463.062047] [ 3194] 0 3194 4371 0 32768 0 0 syzkaller005063 [ 463.071090] [ 3195] 0 3195 4371 0 32768 0 0 syzkaller005063 [ 463.080130] [ 3196] 0 3196 4371 0 32768 0 0 syzkaller005063 [ 463.089162] [ 3197] 0 3197 4371 0 32768 0 0 syzkaller005063 [ 463.098226] [ 3198] 0 3198 4371 0 32768 0 0 syzkaller005063 [ 463.107263] [ 3199] 0 3199 4371 524 36864 0 0 syzkaller005063 [ 463.116301] [ 3200] 0 3200 4371 524 36864 0 0 syzkaller005063 [ 463.125340] [ 3201] 0 3201 4371 524 36864 0 0 syzkaller005063 [ 463.134374] Out of memory: Kill process 3199 (syzkaller005063) score 0 or sacrifice child [ 463.142723] Killed process 3199 (syzkaller005063) total-vm:17484kB, anon-rss:2096kB, file-rss:0kB, shmem-rss:0kB [ 463.155642] oom_reaper: reaped process 3199 (syzkaller005063), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 463.476893] rs:main Q:Reg invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=0 [ 463.488734] rs:main Q:Reg cpuset=/ mems_allowed=0 [ 463.493576] CPU: 1 PID: 3037 Comm: rs:main Q:Reg Not tainted 4.15.0-rc5+ #170 [ 463.500819] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 463.510141] Call Trace: [ 463.512705] dump_stack+0x194/0x257 [ 463.516303] ? arch_local_irq_restore+0x53/0x53 [ 463.520939] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 463.526101] dump_header+0x28c/0xe1e [ 463.529785] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 463.534945] ? pagefault_out_of_memory+0x152/0x152 [ 463.539838] ? check_noncircular+0x20/0x20 [ 463.544040] ? print_irqtrace_events+0x270/0x270 [ 463.548767] ? __lock_acquire+0x664/0x3e00 [ 463.552976] ? check_noncircular+0x20/0x20 [ 463.557189] ? find_held_lock+0x35/0x1d0 [ 463.561221] ? check_noncircular+0x20/0x20 [ 463.565420] ? task_will_free_mem+0x252/0xaa0 [ 463.569887] ? print_irqtrace_events+0x270/0x270 [ 463.574619] ? ___ratelimit+0x30d/0x630 [ 463.578562] ? lock_downgrade+0x980/0x980 [ 463.582683] ? lock_release+0xa40/0xa40 [ 463.586630] ? mark_held_locks+0xaf/0x100 [ 463.590751] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 463.595825] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 463.600808] ? trace_hardirqs_on+0xd/0x10 [ 463.604924] ? ___ratelimit+0x95/0x630 [ 463.608779] ? idr_get_free_cmn+0xfd0/0xfd0 [ 463.613067] ? check_noncircular+0x20/0x20 [ 463.617265] ? find_held_lock+0x138/0x1d0 [ 463.621385] oom_kill_process+0x8b5/0x14a0 [ 463.625591] ? has_ns_capability_noaudit+0x163/0x2a0 [ 463.630660] ? lock_downgrade+0x980/0x980 [ 463.634777] ? oom_evaluate_task+0x480/0x480 [ 463.639163] ? security_capable_noaudit+0x8b/0xc0 [ 463.643973] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 463.649046] ? has_capability+0x30/0x30 [ 463.652991] ? do_raw_spin_trylock+0x190/0x190 [ 463.657545] ? check_noncircular+0x20/0x20 [ 463.661751] ? has_capability_noaudit+0x24/0x30 [ 463.666387] ? oom_badness+0xd1/0x980 [ 463.670829] ? lock_release+0xa40/0xa40 [ 463.674773] ? do_try_to_free_pages+0xc53/0x1020 [ 463.679499] ? find_lock_task_mm+0x460/0x460 [ 463.683878] ? find_held_lock+0x35/0x1d0 [ 463.687910] ? out_of_memory+0xb3a/0x1220 [ 463.692025] ? lock_downgrade+0x980/0x980 [ 463.696141] ? lock_release+0xa40/0xa40 [ 463.700080] ? lock_acquire+0x1d5/0x580 [ 463.704019] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 463.708919] ? oom_evaluate_task+0x284/0x480 [ 463.713296] out_of_memory+0x86d/0x1220 [ 463.717234] ? trace_hardirqs_on+0xd/0x10 [ 463.721353] ? oom_killer_disable+0x310/0x310 [ 463.725814] ? mutex_trylock+0x23a/0x2d0 [ 463.729843] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 463.735266] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 463.741131] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 463.745946] ? trace_hardirqs_on+0xd/0x10 [ 463.750076] ? warn_alloc+0x2b0/0x2b0 [ 463.753842] ? lock_downgrade+0x980/0x980 [ 463.757964] ? __lock_is_held+0xb6/0x140 [ 463.762005] ? find_get_entry+0x53c/0x9e0 [ 463.766141] ? __lock_acquire+0x664/0x3e00 [ 463.770372] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 463.776239] ? __might_sleep+0x95/0x190 [ 463.780183] __alloc_pages_nodemask+0x9fb/0xd80 [ 463.784823] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 463.789805] ? add_to_page_cache_lru+0x510/0x510 [ 463.794533] ? check_noncircular+0x20/0x20 [ 463.798731] ? check_noncircular+0x20/0x20 [ 463.802932] ? __schedule+0x8f3/0x2060 [ 463.806786] ? jbd2_journal_stop+0x482/0x1490 [ 463.811251] ? lock_acquire+0x1d5/0x580 [ 463.815217] alloc_pages_current+0xb6/0x1e0 [ 463.819508] __page_cache_alloc+0x334/0x500 [ 463.823796] ? rcu_read_lock_held+0xa9/0xc0 [ 463.828087] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 463.835429] filemap_fault+0xefc/0x1c20 [ 463.839375] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 463.844554] ? __lock_page_or_retry+0x4f0/0x4f0 [ 463.849201] ? filemap_map_pages+0x942/0x15d0 [ 463.853675] ? find_get_entries_tag+0xeb0/0xeb0 [ 463.858320] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 463.863478] ? balance_dirty_pages_ratelimited+0x1be/0x1bb0 [ 463.869155] ? lock_release+0xa40/0xa40 [ 463.873100] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 463.878953] ? check_noncircular+0x20/0x20 [ 463.883161] ? balance_dirty_pages+0x3440/0x3440 [ 463.887883] ? generic_write_end+0x2c3/0x460 [ 463.892269] ? print_irqtrace_events+0x270/0x270 [ 463.896991] ? print_irqtrace_events+0x270/0x270 [ 463.901716] ? print_irqtrace_events+0x270/0x270 [ 463.906438] ? check_noncircular+0x20/0x20 [ 463.910638] ? up_write+0x6b/0x120 [ 463.914162] ? lock_acquire+0x1d5/0x580 [ 463.918104] ? lock_acquire+0x1d5/0x580 [ 463.922052] ? ext4_filemap_fault+0x7a/0xad [ 463.926345] ? lock_release+0xa40/0xa40 [ 463.930286] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 463.936141] ? rcu_note_context_switch+0x710/0x710 [ 463.941049] ? __might_sleep+0x95/0x190 [ 463.944995] ? down_read+0x96/0x150 [ 463.948591] ? ext4_filemap_fault+0x7a/0xad [ 463.952878] ? __down_interruptible+0x6b0/0x6b0 [ 463.957526] ext4_filemap_fault+0x82/0xad [ 463.961642] __do_fault+0xeb/0x30f [ 463.965151] ? pte_offset_kernel+0xc7/0xc7 [ 463.969353] ? generic_update_time+0x1b2/0x270 [ 463.973904] ? do_raw_spin_trylock+0x190/0x190 [ 463.978461] ? check_noncircular+0x20/0x20 [ 463.982666] __handle_mm_fault+0x1d8f/0x3ce0 [ 463.987061] ? __pmd_alloc+0x4e0/0x4e0 [ 463.990922] ? find_held_lock+0x35/0x1d0 [ 463.994957] ? handle_mm_fault+0x248/0x8d0 [ 463.999159] ? lock_downgrade+0x980/0x980 [ 464.003296] handle_mm_fault+0x334/0x8d0 [ 464.007323] ? down_read_trylock+0xdb/0x170 [ 464.011615] ? __do_page_fault+0x32d/0xc90 [ 464.015819] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 464.020366] ? vmacache_find+0x5f/0x280 [ 464.024323] ? find_vma+0x30/0x150 [ 464.027832] __do_page_fault+0x5c9/0xc90 [ 464.031858] ? vfs_write+0x374/0x510 [ 464.035543] ? mm_fault_error+0x2c0/0x2c0 [ 464.039658] ? __lock_is_held+0xb6/0x140 [ 464.043694] do_page_fault+0xee/0x720 [ 464.047466] ? __do_page_fault+0xc90/0xc90 [ 464.051668] ? __sb_end_write+0xa0/0xd0 [ 464.055626] ? fput+0xd2/0x140 [ 464.058789] ? SyS_write+0x184/0x220 [ 464.062476] ? retint_user+0x18/0x18 [ 464.066163] ? page_fault+0x36/0x60 [ 464.069763] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 464.074582] ? page_fault+0x36/0x60 [ 464.078178] page_fault+0x4c/0x60 [ 464.081597] RIP: 0033:0x421030 [ 464.084760] RSP: 002b:00007fae39b15508 EFLAGS: 00010246 [ 464.090088] RAX: 0000000000000000 RBX: 00000000014f8a38 RCX: 0000000000000001 [ 464.097332] RDX: 0000000000000001 RSI: 0000000001501cd0 RDI: 000000000044ad88 [ 464.104574] RBP: 0000000000000000 R08: 0000000001501d80 R09: 0000000000000bdd [ 464.111813] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 [ 464.119056] R13: 0000000000000000 R14: 0000000001501cd0 R15: 000000000151cc40 [ 464.126419] Mem-Info: [ 464.129106] active_anon:2983 inactive_anon:33 isolated_anon:0 [ 464.129106] active_file:4 inactive_file:23 isolated_file:0 [ 464.129106] unevictable:0 dirty:0 writeback:0 unstable:0 [ 464.129106] slab_reclaimable:7200 slab_unreclaimable:83513 [ 464.129106] mapped:2 shmem:40 pagetables:301 bounce:0 [ 464.129106] free:24477 free_pcp:81 free_cma:0 [ 464.161119] Node 0 active_anon:11932kB inactive_anon:132kB active_file:24kB inactive_file:164kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:108kB dirty:0kB writeback:0kB shmem:160kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 4096kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 464.188127] Node 0 DMA free:15908kB min:160kB low:200kB high:240kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 464.214273] lowmem_reserve[]: 0 2879 6391 6391 [ 464.218940] Node 0 DMA32 free:44252kB min:30368kB low:37960kB high:45552kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2950880kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 464.247400] lowmem_reserve[]: 0 0 3512 3512 [ 464.272087] Node 0 Normal free:36644kB min:37048kB low:46308kB high:55568kB active_anon:11932kB inactive_anon:132kB active_file:16kB inactive_file:92kB unevictable:0kB writepending:0kB present:4718592kB managed:3596704kB mlocked:0kB kernel_stack:2880kB pagetables:1204kB bounce:0kB free_pcp:192kB local_pcp:24kB free_cma:0kB [ 464.300872] lowmem_reserve[]: 0 0 0 0 [ 464.304708] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 464.318371] Node 0 DMA32: 3*4kB (UM) 2*8kB (UM) 4*16kB (UM) 2*32kB (UM) 3*64kB (UM) 3*128kB (UM) 4*256kB (UM) 3*512kB (M) 4*1024kB (UM) 2*2048kB (M) 8*4096kB (M) = 44252kB [ 464.335165] Node 0 Normal: 416*4kB (UME) 345*8kB (UME) 244*16kB (UME) 171*32kB (UME) 76*64kB (M) 35*128kB (ME) 24*256kB (ME) 12*512kB (ME) 1*1024kB (E) 0*2048kB 0*4096kB = 36456kB [ 464.351506] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 464.360142] 71 total pagecache pages [ 464.363888] 0 pages in swap cache [ 464.367351] Swap cache stats: add 0, delete 0, find 0/0 [ 464.372721] Free swap = 0kB [ 464.375739] Total swap = 0kB [ 464.378999] 1965979 pages RAM [ 464.382712] 0 pages HighMem/MovableOnly [ 464.386706] 325106 pages reserved [ 464.390164] Unreclaimable slab info: [ 464.394555] Name Used Total [ 464.400105] hashtab_node 118KB 119KB [ 464.405463] ebitmap_node 382KB 385KB [ 464.410827] avtab_node 1012KB 1013KB [ 464.416200] TIPC 1KB 7KB [ 464.421563] SCTPv6 2KB 4KB [ 464.426938] DCCPv6 2KB 7KB [ 464.432313] DCCP 2KB 6KB [ 464.437685] fib6_nodes 0KB 4KB [ 464.443054] ip6_dst_cache 6KB 7KB [ 464.448418] RAWv6 9KB 13KB [ 464.453770] UDPv6 12KB 14KB [ 464.459137] TCPv6 2KB 5KB [ 464.464499] sd_ext_cdb 0KB 3KB [ 464.469849] scsi_sense_cache 144KB 144KB [ 464.475217] virtio_scsi_cmd 16KB 16KB [ 464.480583] sgpool-128 8KB 8KB [ 464.485943] sgpool-64 4KB 6KB [ 464.491326] sgpool-32 346KB 346KB [ 464.496691] sgpool-16 75KB 75KB [ 464.502057] sgpool-8 225KB 225KB [ 464.507419] cfq_io_cq 16KB 19KB [ 464.512786] cfq_queue 25KB 27KB [ 464.518157] mqueue_inode_cache 1KB 7KB [ 464.524065] nfs_commit_data 3KB 7KB [ 464.529429] nfs_write_data 34KB 37KB [ 464.534800] jbd2_inode 1KB 3KB [ 464.540179] ext4_system_zone 0KB 3KB [ 464.545554] bio-1 1KB 3KB [ 464.550934] rpc_buffers 17KB 19KB [ 464.556308] rpc_tasks 2KB 3KB [ 464.561671] UNIX 1382KB 1435KB [ 464.567051] tcp_bind_bucket 0KB 4KB [ 464.572414] ip_fib_trie 0KB 3KB [ 464.577778] ip_fib_alias 0KB 3KB [ 464.583153] ip_dst_cache 3KB 8KB [ 464.588519] RAW 5KB 7KB [ 464.593874] UDP 29KB 31KB [ 464.599246] TCP 7KB 7KB [ 464.604605] hugetlbfs_inode_cache 1KB 7KB [ 464.610324] eventpoll_pwq 10KB 15KB [ 464.615737] eventpoll_epi 19KB 27KB [ 464.621108] inotify_inode_mark 4KB 7KB [ 464.626554] request_queue 31KB 39KB [ 464.631912] blkdev_ioc 22KB 23KB [ 464.637271] bio-0 435KB 435KB [ 464.642643] biovec-(1<<(21-12)) 528KB 528KB [ 464.648196] biovec-64 464KB 464KB [ 464.653561] biovec-16 48KB 48KB [ 464.659504] bio_integrity_payload 0KB 4KB [ 464.665212] khugepaged_mm_slot 0KB 3KB [ 464.670662] uid_cache 0KB 3KB [ 464.676049] dmaengine-unmap-2 0KB 3KB [ 464.681405] audit_buffer 0KB 3KB [ 464.686760] skbuff_fclone_cache 126KB 131KB [ 464.692289] skbuff_head_cache 1642KB 1672KB [ 464.697654] configfs_dir_cache 0KB 4KB [ 464.703122] file_lock_cache 153KB 154KB [ 464.708493] file_lock_ctx 1KB 3KB [ 464.713870] fsnotify_mark_connector 2KB 3KB [ 464.719776] shmem_inode_cache 876KB 879KB [ 464.725154] task_delay_info 278KB 407KB [ 464.730518] sigqueue 316KB 322KB [ 464.735884] kernfs_node_cache 1857KB 1862KB [ 464.741331] mnt_cache 14KB 20KB [ 464.746694] filp 8200KB 8231KB [ 464.752065] names_cache 113968KB 114006KB [ 464.757424] avc_node 37KB 39KB [ 464.762779] selinux_file_security 409KB 418KB [ 464.768481] selinux_inode_security 1892KB 1900KB [ 464.774274] key_jar 3KB 7KB [ 464.779626] nsproxy 0KB 3KB [ 464.784993] vm_area_struct 17021KB 17042KB [ 464.790379] mm_struct 3970KB 3984KB [ 464.796306] fs_cache 368KB 472KB [ 464.801670] files_cache 1382KB 1642KB [ 464.807040] signal_cache 2219KB 2623KB [ 464.812396] sighand_cache 203KB 256KB [ 464.817746] task_struct 9469KB 9469KB [ 464.823115] cred_jar 2199KB 2220KB [ 464.828470] anon_vma_chain 6964KB 6981KB [ 464.833826] anon_vma 128KB 288KB [ 464.839203] pid 193KB 288KB [ 464.844567] Acpi-Operand 106KB 170KB [ 464.849927] Acpi-Namespace 19KB 23KB [ 464.855296] numa_policy 0KB 3KB [ 464.860665] debug_objects_cache 444KB 446KB [ 464.866265] trace_event_file 144KB 147KB [ 464.871624] ftrace_event_field 254KB 255KB [ 464.877083] pool_workqueue 21KB 24KB [ 464.882441] page->ptl 2791KB 2802KB [ 464.887808] kmalloc-262144 1032KB 1032KB [ 464.893176] kmalloc-131072 650KB 650KB [ 464.898528] kmalloc-65536 264KB 264KB [ 464.903884] kmalloc-32768 495KB 495KB [ 464.909251] kmalloc-16384 148KB 148KB [ 464.914607] kmalloc-8192 420KB 420KB [ 464.919961] kmalloc-4096 8334KB 8364KB [ 464.925317] kmalloc-2048 2996KB 2996KB [ 464.931304] kmalloc-1024 3937KB 3937KB [ 464.937415] kmalloc-512 2871KB 3150KB [ 464.943337] kmalloc-256 1580KB 1905KB [ 464.949187] kmalloc-128 385KB 507KB [ 464.954943] kmalloc-96 1932KB 1932KB [ 464.960730] kmalloc-64 2316KB 2316KB [ 464.966493] kmalloc-32 2286KB 2291KB [ 464.972270] kmalloc-192 804KB 804KB [ 464.978142] kmem_cache 97KB 101KB [ 464.983996] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 464.992984] [ 1628] 0 1628 5385 172 90112 0 -1000 udevd [ 465.001179] [ 3036] 0 3036 14265 180 114688 0 0 rsyslogd [ 465.009619] [ 3091] 0 3091 4725 51 86016 0 0 cron [ 465.017697] [ 3115] 0 3115 3735 44 65536 0 0 mcstransd [ 465.026196] [ 3128] 0 3128 12490 153 139264 0 -1000 sshd [ 465.034268] [ 3161] 0 3161 3694 40 73728 0 0 getty [ 465.042420] [ 3162] 0 3162 3694 40 73728 0 0 getty [ 465.050574] [ 3163] 0 3163 3694 41 73728 0 0 getty [ 465.058733] [ 3164] 0 3164 3694 41 73728 0 0 getty [ 465.066890] [ 3165] 0 3165 3694 41 77824 0 0 getty [ 465.075049] [ 3166] 0 3166 3694 42 73728 0 0 getty [ 465.083214] [ 3167] 0 3167 3649 39 69632 0 0 getty [ 465.091382] [ 3170] 0 3170 5681 455 90112 0 -1000 udevd [ 465.099548] [ 3171] 0 3171 5681 455 90112 0 -1000 udevd [ 465.107708] [ 3191] 0 3191 17821 199 184320 0 0 sshd [ 465.115774] [ 3193] 0 3193 280 1 32768 0 0 syzkaller005063 [ 465.124798] [ 3194] 0 3194 4371 0 32768 0 0 syzkaller005063 [ 465.133831] [ 3195] 0 3195 4371 0 32768 0 0 syzkaller005063 [ 465.142858] [ 3196] 0 3196 4371 0 32768 0 0 syzkaller005063 [ 465.151875] [ 3197] 0 3197 4371 0 32768 0 0 syzkaller005063 [ 465.160890] [ 3198] 0 3198 4371 0 32768 0 0 syzkaller005063 [ 465.169902] [ 3199] 0 3199 4371 0 32768 0 0 syzkaller005063 [ 465.178935] [ 3200] 0 3200 4371 524 36864 0 0 syzkaller005063 [ 465.187948] [ 3201] 0 3201 4371 524 36864 0 0 syzkaller005063 [ 465.196959] Out of memory: Kill process 3200 (syzkaller005063) score 0 or sacrifice child [ 465.205757] Killed process 3200 (syzkaller005063) total-vm:17484kB, anon-rss:2096kB, file-rss:0kB, shmem-rss:0kB [ 465.218639] oom_reaper: reaped process 3200 (syzkaller005063), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 465.272624] rsyslogd invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=0 [ 465.284041] rsyslogd cpuset=/ mems_allowed=0 [ 465.288477] CPU: 0 PID: 3040 Comm: rsyslogd Not tainted 4.15.0-rc5+ #170 [ 465.295296] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 465.304643] Call Trace: [ 465.307218] dump_stack+0x194/0x257 [ 465.310833] ? arch_local_irq_restore+0x53/0x53 [ 465.315488] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 465.320671] dump_header+0x28c/0xe1e [ 465.324380] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 465.329559] ? pagefault_out_of_memory+0x152/0x152 [ 465.334469] ? check_noncircular+0x20/0x20 [ 465.338692] ? print_irqtrace_events+0x270/0x270 [ 465.343436] ? __lock_acquire+0x664/0x3e00 [ 465.347658] ? check_noncircular+0x20/0x20 [ 465.351885] ? find_held_lock+0x35/0x1d0 [ 465.355940] ? check_noncircular+0x20/0x20 [ 465.360156] ? task_will_free_mem+0x252/0xaa0 [ 465.364642] ? print_irqtrace_events+0x270/0x270 [ 465.369393] ? ___ratelimit+0x30d/0x630 [ 465.373349] ? lock_downgrade+0x980/0x980 [ 465.377484] ? lock_release+0xa40/0xa40 [ 465.381446] ? mark_held_locks+0xaf/0x100 [ 465.385580] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 465.390667] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 465.395668] ? trace_hardirqs_on+0xd/0x10 [ 465.399804] ? ___ratelimit+0x95/0x630 [ 465.403676] ? idr_get_free_cmn+0xfd0/0xfd0 [ 465.407980] ? check_noncircular+0x20/0x20 [ 465.412194] ? find_held_lock+0x138/0x1d0 [ 465.416336] oom_kill_process+0x8b5/0x14a0 [ 465.420561] ? has_ns_capability_noaudit+0x163/0x2a0 [ 465.425647] ? lock_downgrade+0x980/0x980 [ 465.429784] ? oom_evaluate_task+0x480/0x480 [ 465.434193] ? security_capable_noaudit+0x8b/0xc0 [ 465.439027] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 465.444115] ? has_capability+0x30/0x30 [ 465.448067] ? do_raw_spin_trylock+0x190/0x190 [ 465.452633] ? check_noncircular+0x20/0x20 [ 465.456866] ? has_capability_noaudit+0x24/0x30 [ 465.461515] ? oom_badness+0xd1/0x980 [ 465.465299] ? lock_release+0xa40/0xa40 [ 465.469255] ? do_try_to_free_pages+0xc53/0x1020 [ 465.474001] ? find_lock_task_mm+0x460/0x460 [ 465.478402] ? find_held_lock+0x35/0x1d0 [ 465.482461] ? out_of_memory+0xb3a/0x1220 [ 465.486592] ? lock_downgrade+0x980/0x980 [ 465.490725] ? lock_release+0xa40/0xa40 [ 465.494677] ? lock_acquire+0x1d5/0x580 [ 465.498634] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 465.503556] ? oom_evaluate_task+0x284/0x480 [ 465.507954] out_of_memory+0x86d/0x1220 [ 465.511910] ? trace_hardirqs_on+0xd/0x10 [ 465.516052] ? oom_killer_disable+0x310/0x310 [ 465.520527] ? mutex_trylock+0x23a/0x2d0 [ 465.524574] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 465.529998] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 465.535882] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 465.540719] ? trace_hardirqs_on+0xd/0x10 [ 465.544871] ? warn_alloc+0x2b0/0x2b0 [ 465.548647] ? lock_downgrade+0x980/0x980 [ 465.552792] ? radix_tree_lookup_slot+0x99/0xe0 [ 465.557466] ? find_get_entry+0x53c/0x9e0 [ 465.561630] ? __lock_acquire+0x664/0x3e00 [ 465.565902] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 465.571784] ? __might_sleep+0x95/0x190 [ 465.575746] __alloc_pages_nodemask+0x9fb/0xd80 [ 465.580407] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 465.585409] ? add_to_page_cache_lru+0x510/0x510 [ 465.590156] ? check_noncircular+0x20/0x20 [ 465.594371] ? check_noncircular+0x20/0x20 [ 465.598584] ? __schedule+0x8f3/0x2060 [ 465.602450] ? __update_load_avg_se.isra.27+0x56a/0x7c0 [ 465.607804] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 465.612581] alloc_pages_current+0xb6/0x1e0 [ 465.616896] __page_cache_alloc+0x334/0x500 [ 465.621199] ? rcu_read_lock_held+0xa9/0xc0 [ 465.625505] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 465.632865] filemap_fault+0xefc/0x1c20 [ 465.636827] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 465.642003] ? __lock_page_or_retry+0x4f0/0x4f0 [ 465.646665] ? filemap_map_pages+0x942/0x15d0 [ 465.651164] ? find_get_entries_tag+0xeb0/0xeb0 [ 465.655833] ? check_noncircular+0x20/0x20 [ 465.660060] ? print_irqtrace_events+0x270/0x270 [ 465.664800] ? print_irqtrace_events+0x270/0x270 [ 465.669538] ? print_irqtrace_events+0x270/0x270 [ 465.674282] ? lock_acquire+0x1d5/0x580 [ 465.678225] ? lock_acquire+0x1d5/0x580 [ 465.682165] ? ext4_filemap_fault+0x7a/0xad [ 465.686453] ? __lock_acquire+0x664/0x3e00 [ 465.690655] ? lock_release+0xa40/0xa40 [ 465.694593] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 465.700446] ? rcu_note_context_switch+0x710/0x710 [ 465.705343] ? __might_sleep+0x95/0x190 [ 465.709287] ? down_read+0x96/0x150 [ 465.712877] ? ext4_filemap_fault+0x7a/0xad [ 465.717165] ? __down_interruptible+0x6b0/0x6b0 [ 465.721811] ext4_filemap_fault+0x82/0xad [ 465.725924] __do_fault+0xeb/0x30f [ 465.729431] ? pte_offset_kernel+0xc7/0xc7 [ 465.733631] ? trace_hardirqs_on+0xd/0x10 [ 465.737745] ? do_raw_spin_trylock+0x190/0x190 [ 465.742296] ? check_noncircular+0x20/0x20 [ 465.746500] __handle_mm_fault+0x1d8f/0x3ce0 [ 465.750885] ? __pmd_alloc+0x4e0/0x4e0 [ 465.754744] ? find_held_lock+0x35/0x1d0 [ 465.758776] ? handle_mm_fault+0x248/0x8d0 [ 465.762975] ? lock_downgrade+0x980/0x980 [ 465.767118] handle_mm_fault+0x334/0x8d0 [ 465.771152] ? down_read_trylock+0xdb/0x170 [ 465.775454] ? __do_page_fault+0x32d/0xc90 [ 465.779675] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 465.784234] ? vmacache_find+0x5f/0x280 [ 465.788195] ? find_vma+0x30/0x150 [ 465.791722] __do_page_fault+0x5c9/0xc90 [ 465.795758] ? vfs_copy_file_range+0x940/0x940 [ 465.800329] ? mm_fault_error+0x2c0/0x2c0 [ 465.804461] ? exit_to_usermode_loop+0x8c/0x310 [ 465.809118] do_page_fault+0xee/0x720 [ 465.812893] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 465.818408] ? __do_page_fault+0xc90/0xc90 [ 465.822641] ? syscall_return_slowpath+0x2ad/0x550 [ 465.827548] ? prepare_exit_to_usermode+0x340/0x340 [ 465.833217] ? SyS_read+0x184/0x220 [ 465.836819] ? retint_user+0x18/0x18 [ 465.840510] ? page_fault+0x36/0x60 [ 465.844121] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 465.848941] ? page_fault+0x36/0x60 [ 465.852544] page_fault+0x4c/0x60 [ 465.855970] RIP: 0033:0x7fae3aef0610 [ 465.859657] RSP: 002b:00007fae38b13d48 EFLAGS: 00010297 [ 465.864990] RAX: 0000000000000007 RBX: 0000000001520130 RCX: 0000000000000003 [ 465.872233] RDX: 0000000000000007 RSI: 00007fae3a14650c RDI: 00000000015202e0 [ 465.879480] RBP: 00000000015202e0 R08: 00007fae3a14650c R09: 00007fae3aef2250 [ 465.886719] R10: 73746e657665203a R11: 00007fae3af24a50 R12: 0000000000000007 [ 465.893961] R13: 00007fae3a14650c R14: 0000000000000ee3 R15: 00007fae3a348696 [ 465.901340] Mem-Info: [ 465.903780] active_anon:2466 inactive_anon:33 isolated_anon:0 [ 465.903780] active_file:22 inactive_file:0 isolated_file:0 [ 465.903780] unevictable:0 dirty:0 writeback:0 unstable:0 [ 465.903780] slab_reclaimable:7202 slab_unreclaimable:83535 [ 465.903780] mapped:0 shmem:40 pagetables:300 bounce:0 [ 465.903780] free:24186 free_pcp:30 free_cma:0 [ 465.937299] Node 0 active_anon:9864kB inactive_anon:132kB active_file:52kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:160kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 2048kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 465.965531] Node 0 DMA free:15908kB min:160kB low:200kB high:240kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 465.993073] lowmem_reserve[]: 0 2879 6391 6391 [ 465.998978] Node 0 DMA32 free:44252kB min:30368kB low:37960kB high:45552kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2950880kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 466.027983] lowmem_reserve[]: 0 0 3512 3512 [ 466.034286] Node 0 Normal free:36948kB min:37048kB low:46308kB high:55568kB active_anon:9864kB inactive_anon:132kB active_file:148kB inactive_file:0kB unevictable:0kB writepending:0kB present:4718592kB managed:3596704kB mlocked:0kB kernel_stack:2880kB pagetables:1200kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 466.063370] lowmem_reserve[]: 0 0 0 0 [ 466.068561] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 466.084053] Node 0 DMA32: 3*4kB (UM) 2*8kB (UM) 4*16kB (UM) 2*32kB (UM) 3*64kB (UM) 3*128kB (UM) 4*256kB (UM) 3*512kB (M) 4*1024kB (UM) 2*2048kB (M) 8*4096kB (M) = 44252kB [ 466.102208] Node 0 Normal: 445*4kB (UME) 348*8kB (UME) 242*16kB (M) 171*32kB (UME) 76*64kB (M) 34*128kB (M) 24*256kB (UM) 11*512kB (M) 0*1024kB 1*2048kB (E) 0*4096kB = 36948kB [ 466.118840] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 466.127958] 67 total pagecache pages [ 466.136069] 0 pages in swap cache [ 466.139532] Swap cache stats: add 0, delete 0, find 0/0 [ 466.144898] Free swap = 0kB [ 466.147919] Total swap = 0kB [ 466.150945] 1965979 pages RAM [ 466.154056] 0 pages HighMem/MovableOnly [ 466.158035] 325106 pages reserved [ 466.161493] Unreclaimable slab info: [ 466.165217] Name Used Total [ 466.170762] hashtab_node 118KB 119KB [ 466.176132] ebitmap_node 382KB 385KB [ 466.181502] avtab_node 1012KB 1013KB [ 466.186873] TIPC 1KB 7KB [ 466.192260] SCTPv6 2KB 4KB [ 466.197641] DCCPv6 2KB 7KB [ 466.203037] DCCP 2KB 6KB [ 466.208426] fib6_nodes 0KB 4KB [ 466.213816] ip6_dst_cache 6KB 7KB [ 466.219191] RAWv6 9KB 13KB [ 466.224571] UDPv6 12KB 14KB [ 466.229944] TCPv6 2KB 5KB [ 466.235326] sd_ext_cdb 0KB 3KB [ 466.240699] scsi_sense_cache 148KB 148KB [ 466.246069] virtio_scsi_cmd 16KB 16KB [ 466.251442] sgpool-128 8KB 8KB [ 466.256824] sgpool-64 4KB 6KB [ 466.262192] sgpool-32 354KB 354KB [ 466.267561] sgpool-16 75KB 75KB [ 466.272931] sgpool-8 225KB 225KB [ 466.278307] cfq_io_cq 16KB 19KB [ 466.283677] cfq_queue 25KB 27KB [ 466.289046] mqueue_inode_cache 1KB 7KB [ 466.294505] nfs_commit_data 3KB 7KB [ 466.300908] nfs_write_data 34KB 37KB [ 466.308034] jbd2_inode 1KB 3KB [ 466.313753] ext4_system_zone 0KB 3KB [ 466.319132] bio-1 1KB 3KB [ 466.324512] rpc_buffers 17KB 19KB [ 466.329884] rpc_tasks 2KB 3KB [ 466.335261] UNIX 1373KB 1435KB [ 466.340633] tcp_bind_bucket 0KB 4KB [ 466.346034] ip_fib_trie 0KB 3KB [ 466.351405] ip_fib_alias 0KB 3KB [ 466.356780] ip_dst_cache 3KB 8KB [ 466.362155] RAW 5KB 7KB [ 466.367529] UDP 29KB 31KB [ 466.372904] TCP 7KB 7KB [ 466.378282] hugetlbfs_inode_cache 1KB 7KB [ 466.384890] eventpoll_pwq 10KB 15KB [ 466.390266] eventpoll_epi 19KB 27KB [ 466.395639] inotify_inode_mark 4KB 7KB [ 466.401099] request_queue 31KB 39KB [ 466.406489] blkdev_ioc 21KB 23KB [ 466.411865] bio-0 442KB 442KB [ 466.417239] biovec-(1<<(21-12)) 528KB 528KB [ 466.422790] biovec-64 472KB 472KB [ 466.428165] biovec-16 48KB 48KB [ 466.434843] bio_integrity_payload 0KB 4KB [ 466.440566] khugepaged_mm_slot 0KB 3KB [ 466.446046] uid_cache 0KB 3KB [ 466.451444] dmaengine-unmap-2 0KB 3KB [ 466.456819] audit_buffer 0KB 3KB [ 466.462204] skbuff_fclone_cache 126KB 131KB [ 466.467751] skbuff_head_cache 1638KB 1672KB [ 466.473126] configfs_dir_cache 0KB 4KB [ 466.478581] file_lock_cache 153KB 154KB [ 466.484477] file_lock_ctx 1KB 3KB [ 466.491856] fsnotify_mark_connector 2KB 3KB [ 466.499066] shmem_inode_cache 876KB 879KB [ 466.505418] task_delay_info 278KB 407KB [ 466.510793] sigqueue 316KB 322KB [ 466.516188] kernfs_node_cache 1857KB 1862KB [ 466.522917] mnt_cache 14KB 20KB [ 466.531075] filp 8193KB 8227KB [ 466.537190] names_cache 113959KB 113997KB [ 466.543288] avc_node 37KB 39KB [ 466.549366] selinux_file_security 408KB 418KB [ 466.558633] selinux_inode_security 1891KB 1900KB [ 466.565247] key_jar 3KB 7KB [ 466.572562] nsproxy 0KB 3KB [ 466.579176] vm_area_struct 17020KB 17042KB [ 466.585217] mm_struct 3970KB 3984KB [ 466.591300] fs_cache 368KB 472KB [ 466.599697] files_cache 1382KB 1642KB [ 466.606706] signal_cache 2219KB 2623KB [ 466.612674] sighand_cache 203KB 256KB [ 466.619857] task_struct 9463KB 9469KB [ 466.626102] cred_jar 2198KB 2220KB [ 466.632066] anon_vma_chain 6963KB 6981KB [ 466.638629] anon_vma 122KB 288KB [ 466.647691] pid 193KB 288KB [ 466.654691] Acpi-Operand 106KB 170KB [ 466.660647] Acpi-Namespace 19KB 23KB [ 466.666634] numa_policy 0KB 3KB [ 466.673330] debug_objects_cache 444KB 446KB [ 466.679573] trace_event_file 144KB 147KB [ 466.686602] ftrace_event_field 254KB 255KB [ 466.694057] pool_workqueue 21KB 24KB [ 466.701541] page->ptl 2791KB 2802KB [ 466.706941] kmalloc-262144 1032KB 1032KB [ 466.712312] kmalloc-131072 650KB 650KB [ 466.717683] kmalloc-65536 264KB 264KB [ 466.723112] kmalloc-32768 495KB 495KB [ 466.728468] kmalloc-16384 148KB 148KB [ 466.733986] kmalloc-8192 420KB 420KB [ 466.739943] kmalloc-4096 8325KB 8364KB [ 466.745288] kmalloc-2048 2996KB 2996KB [ 466.750629] kmalloc-1024 3953KB 3953KB [ 466.755981] kmalloc-512 2865KB 3142KB [ 466.761326] kmalloc-256 1579KB 1905KB [ 466.766668] kmalloc-128 385KB 507KB [ 466.772022] kmalloc-96 1932KB 1932KB [ 466.777364] kmalloc-64 2320KB 2320KB [ 466.782707] kmalloc-32 2286KB 2291KB [ 466.788053] kmalloc-192 808KB 808KB [ 466.793396] kmem_cache 97KB 101KB [ 466.798741] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 466.807316] [ 1628] 0 1628 5385 172 90112 0 -1000 udevd [ 466.815449] [ 3036] 0 3036 14265 180 114688 0 0 rsyslogd [ 466.823837] [ 3091] 0 3091 4725 51 86016 0 0 cron [ 466.831877] [ 3115] 0 3115 3735 44 65536 0 0 mcstransd [ 466.840399] [ 3128] 0 3128 12490 153 139264 0 -1000 sshd [ 466.848472] [ 3161] 0 3161 3694 40 73728 0 0 getty [ 466.856628] [ 3162] 0 3162 3694 40 73728 0 0 getty [ 466.864783] [ 3163] 0 3163 3694 41 73728 0 0 getty [ 466.872944] [ 3164] 0 3164 3694 41 73728 0 0 getty [ 466.881102] [ 3165] 0 3165 3694 41 77824 0 0 getty [ 466.889260] [ 3166] 0 3166 3694 42 73728 0 0 getty [ 466.897417] [ 3167] 0 3167 3649 39 69632 0 0 getty [ 466.905571] [ 3170] 0 3170 5681 455 90112 0 -1000 udevd [ 466.913744] [ 3171] 0 3171 5681 455 90112 0 -1000 udevd [ 466.921900] [ 3191] 0 3191 17821 199 184320 0 0 sshd [ 466.929978] [ 3193] 0 3193 280 1 32768 0 0 syzkaller005063 [ 466.939000] [ 3194] 0 3194 4371 0 32768 0 0 syzkaller005063 [ 466.948048] [ 3195] 0 3195 4371 0 32768 0 0 syzkaller005063 [ 466.957073] [ 3196] 0 3196 4371 0 32768 0 0 syzkaller005063 [ 466.966103] [ 3197] 0 3197 4371 0 32768 0 0 syzkaller005063 [ 466.975137] [ 3198] 0 3198 4371 0 32768 0 0 syzkaller005063 [ 466.984161] [ 3199] 0 3199 4371 0 32768 0 0 syzkaller005063 [ 466.993185] [ 3200] 0 3200 4371 0 32768 0 0 syzkaller005063 [ 467.002213] [ 3201] 0 3201 4371 524 36864 0 0 syzkaller005063 [ 467.011230] Out of memory: Kill process 3201 (syzkaller005063) score 0 or sacrifice child [ 467.021725] Killed process 3201 (syzkaller005063) total-vm:17484kB, anon-rss:2096kB, file-rss:0kB, shmem-rss:0kB [ 467.047118] oom_reaper: reaped process 3201 (syzkaller005063), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 467.186116] kworker/1:1 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 467.198859] kworker/1:1 cpuset=/ mems_allowed=0 [ 467.203591] CPU: 1 PID: 3202 Comm: kworker/1:1 Not tainted 4.15.0-rc5+ #170 [ 467.210665] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 467.220004] Workqueue: events pcpu_balance_workfn [ 467.224822] Call Trace: [ 467.227390] dump_stack+0x194/0x257 [ 467.230999] ? arch_local_irq_restore+0x53/0x53 [ 467.235652] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 467.240819] dump_header+0x28c/0xe1e [ 467.244511] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 467.249672] ? pagefault_out_of_memory+0x152/0x152 [ 467.254571] ? check_noncircular+0x20/0x20 [ 467.258776] ? print_irqtrace_events+0x270/0x270 [ 467.263513] ? __lock_acquire+0x664/0x3e00 [ 467.267725] ? check_noncircular+0x20/0x20 [ 467.271931] ? print_irqtrace_events+0x270/0x270 [ 467.276659] ? check_noncircular+0x20/0x20 [ 467.280861] ? task_will_free_mem+0x252/0xaa0 [ 467.285327] ? print_irqtrace_events+0x270/0x270 [ 467.290057] ? ___ratelimit+0x30d/0x630 [ 467.293999] ? lock_downgrade+0x980/0x980 [ 467.298209] ? lock_release+0xa40/0xa40 [ 467.302156] ? mark_held_locks+0xaf/0x100 [ 467.307226] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 467.312817] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 467.317800] ? trace_hardirqs_on+0xd/0x10 [ 467.321915] ? ___ratelimit+0x95/0x630 [ 467.325769] ? idr_get_free_cmn+0xfd0/0xfd0 [ 467.330057] ? check_noncircular+0x20/0x20 [ 467.334257] ? find_held_lock+0x138/0x1d0 [ 467.338379] oom_kill_process+0x8b5/0x14a0 [ 467.342584] ? has_ns_capability_noaudit+0x163/0x2a0 [ 467.347656] ? check_noncircular+0x20/0x20 [ 467.351858] ? oom_evaluate_task+0x480/0x480 [ 467.356243] ? security_capable_noaudit+0x8b/0xc0 [ 467.361058] ? find_held_lock+0x35/0x1d0 [ 467.365724] ? check_noncircular+0x20/0x20 [ 467.370795] ? oom_unkillable_task+0x394/0x4c0 [ 467.375342] ? lock_downgrade+0x980/0x980 [ 467.379463] ? lock_release+0xa40/0xa40 [ 467.383402] ? do_try_to_free_pages+0xc53/0x1020 [ 467.388127] ? find_lock_task_mm+0x460/0x460 [ 467.392508] ? find_held_lock+0x35/0x1d0 [ 467.396543] ? out_of_memory+0xb3a/0x1220 [ 467.400657] ? lock_downgrade+0x980/0x980 [ 467.404774] ? lock_release+0xa40/0xa40 [ 467.408713] ? lock_acquire+0x1d5/0x580 [ 467.412654] ? blocking_notifier_call_chain+0x112/0x190 [ 467.417989] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 467.422891] ? oom_evaluate_task+0x284/0x480 [ 467.427270] out_of_memory+0x86d/0x1220 [ 467.431218] ? oom_killer_disable+0x310/0x310 [ 467.435677] ? mutex_trylock+0x23a/0x2d0 [ 467.439704] ? __lock_is_held+0xb6/0x140 [ 467.443730] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 467.449157] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 467.453992] ? warn_alloc+0x2b0/0x2b0 [ 467.457762] ? lock_release+0xa40/0xa40 [ 467.461706] ? print_irqtrace_events+0x270/0x270 [ 467.466432] ? find_held_lock+0x35/0x1d0 [ 467.470465] ? __mutex_lock+0x5bd/0x1a80 [ 467.474497] ? __lock_acquire+0x664/0x3e00 [ 467.478697] ? lock_release+0xa40/0xa40 [ 467.482640] ? memset+0x31/0x40 [ 467.485887] ? do_raw_spin_trylock+0x190/0x190 [ 467.490453] ? __lock_is_held+0xb6/0x140 [ 467.494492] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 467.500351] ? __might_sleep+0x95/0x190 [ 467.504295] __alloc_pages_nodemask+0x9fb/0xd80 [ 467.508940] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 467.513920] ? __lock_acquire+0x664/0x3e00 [ 467.518130] ? print_irqtrace_events+0x270/0x270 [ 467.522857] ? __lock_is_held+0xb6/0x140 [ 467.526890] ? find_next_bit+0x27/0x30 [ 467.531282] pcpu_populate_chunk+0x1b3/0x880 [ 467.535672] pcpu_balance_workfn+0xf3e/0x1520 [ 467.540134] ? check_noncircular+0x20/0x20 [ 467.544333] ? find_held_lock+0x35/0x1d0 [ 467.548370] ? pcpu_create_chunk+0x900/0x900 [ 467.552747] ? lock_release+0xa40/0xa40 [ 467.556688] ? check_noncircular+0x20/0x20 [ 467.560895] ? lock_acquire+0x1d5/0x580 [ 467.564832] ? lock_acquire+0x1d5/0x580 [ 467.568778] ? process_one_work+0xb01/0x1b10 [ 467.573164] ? __lock_is_held+0xb6/0x140 [ 467.577202] process_one_work+0xbbf/0x1b10 [ 467.581402] ? trace_hardirqs_on+0xd/0x10 [ 467.585524] ? pwq_dec_nr_in_flight+0x450/0x450 [ 467.590171] ? __schedule+0x8f3/0x2060 [ 467.594029] ? update_curr+0x47b/0xa60 [ 467.597894] ? check_noncircular+0x20/0x20 [ 467.602094] ? __lock_is_held+0xb6/0x140 [ 467.606143] ? lock_acquire+0x1d5/0x580 [ 467.610083] ? lock_acquire+0x1d5/0x580 [ 467.614028] ? worker_thread+0x4a3/0x1990 [ 467.618145] ? lock_downgrade+0x980/0x980 [ 467.622265] ? lock_release+0xa40/0xa40 [ 467.626207] ? worker_pool_assign_id+0x1b0/0x1b0 [ 467.630929] ? do_raw_spin_trylock+0x190/0x190 [ 467.635489] worker_thread+0xb26/0x1990 [ 467.640317] ? process_one_work+0x1b10/0x1b10 [ 467.645389] ? _raw_spin_unlock_irq+0x27/0x70 [ 467.649852] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 467.654833] ? trace_hardirqs_on+0xd/0x10 [ 467.658948] ? _raw_spin_unlock_irq+0x27/0x70 [ 467.663410] ? finish_task_switch+0x1d3/0x740 [ 467.667869] ? finish_task_switch+0x1aa/0x740 [ 467.672664] ? copy_overflow+0x20/0x20 [ 467.676529] ? __schedule+0x8f3/0x2060 [ 467.680403] ? find_held_lock+0x35/0x1d0 [ 467.684435] ? find_held_lock+0x35/0x1d0 [ 467.688468] ? complete+0x62/0x80 [ 467.691894] ? __schedule+0x2060/0x2060 [ 467.695832] ? do_wait_intr_irq+0x3e0/0x3e0 [ 467.700121] ? __lockdep_init_map+0xe4/0x650 [ 467.704496] ? do_raw_spin_trylock+0x190/0x190 [ 467.709044] ? lockdep_init_map+0x9/0x10 [ 467.713073] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 467.718146] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 467.723128] ? trace_hardirqs_on+0xd/0x10 [ 467.727243] ? __kthread_parkme+0x175/0x240 [ 467.731532] kthread+0x33c/0x400 [ 467.734871] ? process_one_work+0x1b10/0x1b10 [ 467.739330] ? kthread_stop+0x7a0/0x7a0 [ 467.743270] ret_from_fork+0x24/0x30 [ 467.747090] Mem-Info: [ 467.749564] active_anon:1949 inactive_anon:33 isolated_anon:0 [ 467.749564] active_file:20 inactive_file:2 isolated_file:0 [ 467.749564] unevictable:0 dirty:0 writeback:0 unstable:0 [ 467.749564] slab_reclaimable:7211 slab_unreclaimable:83602 [ 467.749564] mapped:3 shmem:40 pagetables:299 bounce:0 [ 467.749564] free:24164 free_pcp:61 free_cma:0 [ 467.781577] Node 0 active_anon:7796kB inactive_anon:132kB active_file:80kB inactive_file:8kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:12kB dirty:0kB writeback:0kB shmem:160kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 467.808041] Node 0 DMA free:15908kB min:160kB low:200kB high:240kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 467.834160] lowmem_reserve[]: 0 2879 6391 6391 [ 467.838753] Node 0 DMA32 free:44252kB min:30368kB low:37960kB high:45552kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2950880kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 467.865906] lowmem_reserve[]: 0 0 3512 3512 [ 467.870235] Node 0 Normal free:36496kB min:37048kB low:46308kB high:55568kB active_anon:7796kB inactive_anon:132kB active_file:92kB inactive_file:156kB unevictable:0kB writepending:0kB present:4718592kB managed:3596704kB mlocked:0kB kernel_stack:2880kB pagetables:1196kB bounce:0kB free_pcp:244kB local_pcp:232kB free_cma:0kB [ 467.899055] lowmem_reserve[]: 0 0 0 0 [ 467.902874] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 467.916441] Node 0 DMA32: 3*4kB (UM) 2*8kB (UM) 4*16kB (UM) 2*32kB (UM) 3*64kB (UM) 3*128kB (UM) 4*256kB (UM) 3*512kB (M) 4*1024kB (UM) 2*2048kB (M) 8*4096kB (M) = 44252kB [ 467.931934] Node 0 Normal: 385*4kB (ME) 351*8kB (UME) 242*16kB (M) 169*32kB (M) 77*64kB (UM) 34*128kB (M) 24*256kB (UM) 11*512kB (M) 0*1024kB 1*2048kB (E) 0*4096kB = 36732kB [ 467.947626] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 467.956194] 90 total pagecache pages [ 467.960503] 0 pages in swap cache [ 467.963937] Swap cache stats: add 0, delete 0, find 0/0 [ 467.969293] Free swap = 0kB [ 467.972300] Total swap = 0kB [ 467.975312] 1965979 pages RAM [ 467.978407] 0 pages HighMem/MovableOnly [ 467.982373] 325106 pages reserved [ 467.985811] Unreclaimable slab info: [ 467.989524] Name Used Total [ 467.995070] hashtab_node 118KB 119KB [ 468.000426] ebitmap_node 382KB 385KB [ 468.005776] avtab_node 1012KB 1013KB [ 468.011144] TIPC 1KB 7KB [ 468.016501] SCTPv6 2KB 4KB [ 468.021852] DCCPv6 2KB 7KB [ 468.027221] DCCP 2KB 6KB [ 468.032587] fib6_nodes 0KB 4KB [ 468.037933] ip6_dst_cache 6KB 7KB [ 468.043298] RAWv6 9KB 13KB [ 468.048654] UDPv6 12KB 14KB [ 468.054000] TCPv6 2KB 5KB [ 468.059387] sd_ext_cdb 0KB 3KB [ 468.064741] scsi_sense_cache 160KB 160KB [ 468.070089] virtio_scsi_cmd 16KB 16KB [ 468.076050] sgpool-128 8KB 8KB [ 468.081411] sgpool-64 4KB 6KB [ 468.086766] sgpool-32 425KB 425KB [ 468.092116] sgpool-16 82KB 82KB [ 468.097475] sgpool-8 232KB 232KB [ 468.102830] cfq_io_cq 15KB 19KB [ 468.108178] cfq_queue 25KB 27KB [ 468.113542] mqueue_inode_cache 1KB 7KB [ 468.118986] nfs_commit_data 3KB 7KB [ 468.124345] nfs_write_data 34KB 37KB [ 468.129693] jbd2_inode 1KB 3KB [ 468.135316] ext4_system_zone 0KB 3KB [ 468.140685] bio-1 1KB 3KB [ 468.146051] rpc_buffers 17KB 19KB [ 468.151416] rpc_tasks 2KB 3KB [ 468.156777] UNIX 1365KB 1431KB [ 468.162131] tcp_bind_bucket 0KB 4KB [ 468.167496] ip_fib_trie 0KB 3KB [ 468.172854] ip_fib_alias 0KB 3KB [ 468.178202] ip_dst_cache 3KB 8KB [ 468.183569] RAW 5KB 7KB [ 468.188928] UDP 29KB 31KB [ 468.194293] TCP 7KB 7KB [ 468.199660] hugetlbfs_inode_cache 1KB 7KB [ 468.205383] eventpoll_pwq 10KB 15KB [ 468.210741] eventpoll_epi 19KB 27KB [ 468.216111] inotify_inode_mark 4KB 7KB [ 468.221555] request_queue 31KB 39KB [ 468.226907] blkdev_ioc 21KB 23KB [ 468.232258] bio-0 472KB 472KB [ 468.237621] biovec-(1<<(21-12)) 536KB 536KB [ 468.243165] biovec-64 543KB 543KB [ 468.248520] biovec-16 52KB 52KB [ 468.253885] bio_integrity_payload 0KB 4KB [ 468.259605] khugepaged_mm_slot 0KB 3KB [ 468.265052] uid_cache 0KB 3KB [ 468.270404] dmaengine-unmap-2 0KB 3KB [ 468.275768] audit_buffer 0KB 3KB [ 468.281144] skbuff_fclone_cache 126KB 131KB [ 468.286950] skbuff_head_cache 1635KB 1672KB [ 468.292301] configfs_dir_cache 0KB 4KB [ 468.297767] file_lock_cache 153KB 154KB [ 468.303145] file_lock_ctx 1KB 3KB [ 468.308505] fsnotify_mark_connector 2KB 3KB [ 468.314386] shmem_inode_cache 876KB 879KB [ 468.319750] task_delay_info 278KB 407KB [ 468.325128] sigqueue 316KB 322KB [ 468.330485] kernfs_node_cache 1857KB 1862KB [ 468.335849] mnt_cache 14KB 20KB [ 468.341219] filp 8190KB 8227KB [ 468.346577] names_cache 113951KB 113989KB [ 468.351947] avc_node 37KB 39KB [ 468.357321] selinux_file_security 408KB 418KB [ 468.363037] selinux_inode_security 1891KB 1900KB [ 468.368834] key_jar 3KB 7KB [ 468.374191] nsproxy 0KB 3KB [ 468.379557] vm_area_struct 17019KB 17042KB [ 468.384916] mm_struct 3970KB 3984KB [ 468.390266] fs_cache 368KB 472KB [ 468.395630] files_cache 1382KB 1642KB [ 468.400987] signal_cache 2219KB 2623KB [ 468.406352] sighand_cache 203KB 256KB [ 468.411718] task_struct 9463KB 9469KB [ 468.417099] cred_jar 2197KB 2220KB [ 468.422457] anon_vma_chain 6963KB 6981KB [ 468.427821] anon_vma 121KB 288KB [ 468.433194] pid 193KB 288KB [ 468.438550] Acpi-Operand 106KB 170KB [ 468.443918] Acpi-Namespace 19KB 23KB [ 468.449289] numa_policy 0KB 3KB [ 468.454646] debug_objects_cache 444KB 446KB [ 468.460185] trace_event_file 144KB 147KB [ 468.465535] ftrace_event_field 254KB 255KB [ 468.470974] pool_workqueue 21KB 24KB [ 468.476324] page->ptl 2791KB 2802KB [ 468.481711] kmalloc-262144 1032KB 1032KB [ 468.487082] kmalloc-131072 650KB 650KB [ 468.492437] kmalloc-65536 264KB 264KB [ 468.497801] kmalloc-32768 495KB 495KB [ 468.503173] kmalloc-16384 148KB 148KB [ 468.508530] kmalloc-8192 420KB 420KB [ 468.513894] kmalloc-4096 8321KB 8359KB [ 468.519267] kmalloc-2048 2996KB 2996KB [ 468.524625] kmalloc-1024 4063KB 4063KB [ 468.529990] kmalloc-512 2858KB 3138KB [ 468.535362] kmalloc-256 1578KB 1901KB [ 468.540720] kmalloc-128 384KB 507KB [ 468.546099] kmalloc-96 1932KB 1932KB [ 468.551452] kmalloc-64 2317KB 2320KB [ 468.556802] kmalloc-32 2285KB 2291KB [ 468.562170] kmalloc-192 807KB 808KB [ 468.567522] kmem_cache 97KB 101KB [ 468.572868] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 468.581470] [ 1628] 0 1628 5385 172 90112 0 -1000 udevd [ 468.589626] [ 3036] 0 3036 14265 180 114688 0 0 rsyslogd [ 468.598046] [ 3091] 0 3091 4725 51 86016 0 0 cron [ 468.606103] [ 3115] 0 3115 3735 44 65536 0 0 mcstransd [ 468.614596] [ 3128] 0 3128 12490 153 139264 0 -1000 sshd [ 468.622667] [ 3161] 0 3161 3694 40 73728 0 0 getty [ 468.630824] [ 3162] 0 3162 3694 40 73728 0 0 getty [ 468.638980] [ 3163] 0 3163 3694 41 73728 0 0 getty [ 468.647137] [ 3164] 0 3164 3694 41 73728 0 0 getty [ 468.655272] [ 3165] 0 3165 3694 41 77824 0 0 getty [ 468.663420] [ 3166] 0 3166 3694 42 73728 0 0 getty [ 468.671835] [ 3167] 0 3167 3649 39 69632 0 0 getty [ 468.679995] [ 3170] 0 3170 5681 455 90112 0 -1000 udevd [ 468.688153] [ 3171] 0 3171 5681 455 90112 0 -1000 udevd [ 468.696289] [ 3191] 0 3191 17821 199 184320 0 0 sshd [ 468.704364] [ 3193] 0 3193 280 1 32768 0 0 syzkaller005063 [ 468.713372] [ 3194] 0 3194 4371 0 32768 0 0 syzkaller005063 [ 468.722389] [ 3195] 0 3195 4371 0 32768 0 0 syzkaller005063 [ 468.731397] [ 3196] 0 3196 4371 0 32768 0 0 syzkaller005063 [ 468.740677] [ 3197] 0 3197 4371 0 32768 0 0 syzkaller005063 [ 468.749687] [ 3198] 0 3198 4371 0 32768 0 0 syzkaller005063 [ 468.758708] [ 3199] 0 3199 4371 0 32768 0 0 syzkaller005063 [ 468.768442] [ 3200] 0 3200 4371 0 32768 0 0 syzkaller005063 [ 468.777463] [ 3201] 0 3201 4371 0 32768 0 0 syzkaller005063 [ 468.786478] Out of memory: Kill process 3191 (sshd) score 0 or sacrifice child [ 468.793969] Killed process 3193 (syzkaller005063) total-vm:1120kB, anon-rss:4kB, file-rss:0kB, shmem-rss:0kB [ 468.823236] rsyslogd invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=0 [ 468.834643] rsyslogd cpuset=/ mems_allowed=0 [ 468.839065] CPU: 0 PID: 3040 Comm: rsyslogd Not tainted 4.15.0-rc5+ #170 [ 468.845871] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 468.855201] Call Trace: [ 468.857773] dump_stack+0x194/0x257 [ 468.861374] ? arch_local_irq_restore+0x53/0x53 [ 468.866021] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 468.871192] dump_header+0x28c/0xe1e [ 468.874881] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 468.880052] ? pagefault_out_of_memory+0x152/0x152 [ 468.885045] ? check_noncircular+0x20/0x20 [ 468.889254] ? print_irqtrace_events+0x270/0x270 [ 468.894767] ? __lock_acquire+0x664/0x3e00 [ 468.899251] ? check_noncircular+0x20/0x20 [ 468.903462] ? print_irqtrace_events+0x270/0x270 [ 468.908205] ? check_noncircular+0x20/0x20 [ 468.912419] ? task_will_free_mem+0x252/0xaa0 [ 468.916908] ? print_irqtrace_events+0x270/0x270 [ 468.921660] ? ___ratelimit+0x30d/0x630 [ 468.925619] ? lock_downgrade+0x980/0x980 [ 468.929757] ? lock_release+0xa40/0xa40 [ 468.933721] ? mark_held_locks+0xaf/0x100 [ 468.937854] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 468.942940] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 468.947941] ? trace_hardirqs_on+0xd/0x10 [ 468.952074] ? ___ratelimit+0x95/0x630 [ 468.955944] ? idr_get_free_cmn+0xfd0/0xfd0 [ 468.960248] ? check_noncircular+0x20/0x20 [ 468.964463] ? find_held_lock+0x138/0x1d0 [ 468.968607] oom_kill_process+0x8b5/0x14a0 [ 468.972830] ? has_ns_capability_noaudit+0x163/0x2a0 [ 468.977919] ? check_noncircular+0x20/0x20 [ 468.982140] ? oom_evaluate_task+0x480/0x480 [ 468.986552] ? security_capable_noaudit+0x8b/0xc0 [ 468.991383] ? find_held_lock+0x35/0x1d0 [ 468.995432] ? check_noncircular+0x20/0x20 [ 468.999653] ? oom_unkillable_task+0x394/0x4c0 [ 469.004223] ? lock_downgrade+0x980/0x980 [ 469.008360] ? lock_release+0xa40/0xa40 [ 469.012312] ? do_try_to_free_pages+0xc53/0x1020 [ 469.017053] ? find_lock_task_mm+0x460/0x460 [ 469.021453] ? find_held_lock+0x35/0x1d0 [ 469.025508] ? out_of_memory+0xb3a/0x1220 [ 469.029636] ? lock_downgrade+0x980/0x980 [ 469.033756] ? lock_release+0xa40/0xa40 [ 469.037694] ? lock_acquire+0x1d5/0x580 [ 469.041634] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 469.046539] ? oom_evaluate_task+0x284/0x480 [ 469.050917] out_of_memory+0x86d/0x1220 [ 469.054857] ? trace_hardirqs_on+0xd/0x10 [ 469.058976] ? oom_killer_disable+0x310/0x310 [ 469.063436] ? mutex_trylock+0x23a/0x2d0 [ 469.067465] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 469.072879] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 469.078738] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 469.083563] ? trace_hardirqs_on+0xd/0x10 [ 469.087692] ? warn_alloc+0x2b0/0x2b0 [ 469.091458] ? lock_downgrade+0x980/0x980 [ 469.096028] ? radix_tree_lookup_slot+0x99/0xe0 [ 469.102560] ? find_get_entry+0x53c/0x9e0 [ 469.108254] ? __lock_acquire+0x664/0x3e00 [ 469.112479] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 469.118335] ? __might_sleep+0x95/0x190 [ 469.122281] __alloc_pages_nodemask+0x9fb/0xd80 [ 469.126920] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 469.131909] ? add_to_page_cache_lru+0x510/0x510 [ 469.136637] ? check_noncircular+0x20/0x20 [ 469.140837] ? check_noncircular+0x20/0x20 [ 469.145037] ? __schedule+0x8f3/0x2060 [ 469.148888] ? __update_load_avg_se.isra.27+0x56a/0x7c0 [ 469.154221] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 469.158962] alloc_pages_current+0xb6/0x1e0 [ 469.163253] __page_cache_alloc+0x334/0x500 [ 469.167541] ? rcu_read_lock_held+0xa9/0xc0 [ 469.171830] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 469.179167] filemap_fault+0xefc/0x1c20 [ 469.183107] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 469.188275] ? __lock_page_or_retry+0x4f0/0x4f0 [ 469.192924] ? filemap_map_pages+0x942/0x15d0 [ 469.197396] ? find_get_entries_tag+0xeb0/0xeb0 [ 469.202037] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 469.207198] ? check_noncircular+0x20/0x20 [ 469.211402] ? print_irqtrace_events+0x270/0x270 [ 469.216125] ? print_irqtrace_events+0x270/0x270 [ 469.220845] ? print_irqtrace_events+0x270/0x270 [ 469.225585] ? lock_acquire+0x1d5/0x580 [ 469.229525] ? lock_acquire+0x1d5/0x580 [ 469.233475] ? ext4_filemap_fault+0x7a/0xad [ 469.237768] ? __lock_acquire+0x664/0x3e00 [ 469.241979] ? lock_release+0xa40/0xa40 [ 469.245924] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 469.251781] ? rcu_note_context_switch+0x710/0x710 [ 469.256679] ? __might_sleep+0x95/0x190 [ 469.260632] ? down_read+0x96/0x150 [ 469.264223] ? ext4_filemap_fault+0x7a/0xad [ 469.268516] ? __down_interruptible+0x6b0/0x6b0 [ 469.273160] ext4_filemap_fault+0x82/0xad [ 469.277278] __do_fault+0xeb/0x30f [ 469.280790] ? pte_offset_kernel+0xc7/0xc7 [ 469.284989] ? trace_hardirqs_on+0xd/0x10 [ 469.289110] ? do_raw_spin_trylock+0x190/0x190 [ 469.293662] ? check_noncircular+0x20/0x20 [ 469.297872] __handle_mm_fault+0x1d8f/0x3ce0 [ 469.302255] ? __pmd_alloc+0x4e0/0x4e0 [ 469.306117] ? find_held_lock+0x35/0x1d0 [ 469.310153] ? handle_mm_fault+0x248/0x8d0 [ 469.314365] ? lock_downgrade+0x980/0x980 [ 469.318499] handle_mm_fault+0x334/0x8d0 [ 469.322531] ? down_read_trylock+0xdb/0x170 [ 469.326819] ? __do_page_fault+0x32d/0xc90 [ 469.331027] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 469.335581] ? vmacache_find+0x5f/0x280 [ 469.339530] ? find_vma+0x30/0x150 [ 469.343044] __do_page_fault+0x5c9/0xc90 [ 469.347072] ? vfs_copy_file_range+0x940/0x940 [ 469.351639] ? mm_fault_error+0x2c0/0x2c0 [ 469.355754] ? exit_to_usermode_loop+0x8c/0x310 [ 469.360406] do_page_fault+0xee/0x720 [ 469.364181] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 469.369686] ? __do_page_fault+0xc90/0xc90 [ 469.373896] ? syscall_return_slowpath+0x2ad/0x550 [ 469.378799] ? prepare_exit_to_usermode+0x340/0x340 [ 469.383782] ? SyS_read+0x184/0x220 [ 469.387377] ? retint_user+0x18/0x18 [ 469.391058] ? page_fault+0x36/0x60 [ 469.394826] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 469.399647] ? page_fault+0x36/0x60 [ 469.403243] page_fault+0x4c/0x60 [ 469.406664] RIP: 0033:0x40b550 [ 469.409825] RSP: 002b:00007fae38b13d68 EFLAGS: 00010202 [ 469.415156] RAX: 0000000000000000 RBX: 00007fae38b13d88 RCX: 0000000000000004 [ 469.422394] RDX: 0000000000000000 RSI: 00007fae3a14650c RDI: 0000000000000210 [ 469.429632] RBP: 0000000000000004 R08: 000000000000003e R09: 00007fae3af08100 [ 469.436868] R10: 73746e657665203a R11: 0000000000000000 R12: 0000000000000000 [ 469.444105] R13: 00007fae3a3495a3 R14: 0000000000000ec5 R15: 00007fae3a3486b4 [ 469.451478] Mem-Info: [ 469.454811] active_anon:1937 inactive_anon:33 isolated_anon:0 [ 469.454811] active_file:20 inactive_file:13 isolated_file:0 [ 469.454811] unevictable:0 dirty:0 writeback:0 unstable:0 [ 469.454811] slab_reclaimable:7208 slab_unreclaimable:83578 [ 469.454811] mapped:1 shmem:40 pagetables:295 bounce:0 [ 469.454811] free:24233 free_pcp:64 free_cma:0 [ 469.486923] Node 0 active_anon:7748kB inactive_anon:132kB active_file:80kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:4kB dirty:0kB writeback:0kB shmem:160kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 469.513325] Node 0 DMA free:15908kB min:160kB low:200kB high:240kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 469.540065] lowmem_reserve[]: 0 2879 6391 6391 [ 469.545036] Node 0 DMA32 free:44252kB min:30368kB low:37960kB high:45552kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2950880kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 469.580588] lowmem_reserve[]: 0 0 3512 3512 [ 469.585147] Node 0 Normal free:36212kB min:37048kB low:46308kB high:55568kB active_anon:7748kB inactive_anon:132kB active_file:4kB inactive_file:108kB unevictable:0kB writepending:0kB present:4718592kB managed:3596704kB mlocked:0kB kernel_stack:2848kB pagetables:1180kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 469.614696] lowmem_reserve[]: 0 0 0 0 [ 469.619961] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 469.634400] Node 0 DMA32: 3*4kB (UM) 2*8kB (UM) 4*16kB (UM) 2*32kB (UM) 3*64kB (UM) 3*128kB (UM) 4*256kB (UM) 3*512kB (M) 4*1024kB (UM) 2*2048kB (M) 8*4096kB (M) = 44252kB [ 469.651254] Node 0 Normal: 441*4kB (UME) 346*8kB (UME) 242*16kB (UM) 169*32kB (UM) 79*64kB (UM) 34*128kB (M) 23*256kB (M) 12*512kB (UM) 1*1024kB (U) 0*2048kB 0*4096kB = 36276kB [ 469.668085] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 469.677432] 69 total pagecache pages [ 469.681533] 0 pages in swap cache [ 469.685757] Swap cache stats: add 0, delete 0, find 0/0 [ 469.691494] Free swap = 0kB [ 469.695262] Total swap = 0kB [ 469.698657] 1965979 pages RAM [ 469.702504] 0 pages HighMem/MovableOnly [ 469.707229] 325106 pages reserved [ 469.711144] Unreclaimable slab info: [ 469.715587] Name Used Total [ 469.721510] hashtab_node 118KB 119KB [ 469.727575] ebitmap_node 382KB 385KB [ 469.733660] avtab_node 1012KB 1013KB [ 469.739760] TIPC 1KB 7KB [ 469.745864] SCTPv6 2KB 4KB [ 469.751964] DCCPv6 2KB 7KB [ 469.757717] DCCP 2KB 6KB [ 469.763727] fib6_nodes 0KB 4KB [ 469.769821] ip6_dst_cache 6KB 7KB [ 469.775921] RAWv6 9KB 13KB [ 469.782167] UDPv6 12KB 14KB [ 469.788271] TCPv6 2KB 5KB [ 469.794070] sd_ext_cdb 0KB 3KB [ 469.799815] scsi_sense_cache 160KB 160KB [ 469.805652] virtio_scsi_cmd 16KB 16KB [ 469.811778] sgpool-128 8KB 8KB [ 469.817864] sgpool-64 4KB 6KB [ 469.823945] sgpool-32 425KB 425KB [ 469.829839] sgpool-16 86KB 86KB [ 469.835936] sgpool-8 236KB 236KB [ 469.842060] cfq_io_cq 18KB 19KB [ 469.847811] cfq_queue 27KB 27KB [ 469.853646] mqueue_inode_cache 1KB 7KB [ 469.859473] nfs_commit_data 3KB 7KB [ 469.865426] nfs_write_data 34KB 37KB [ 469.871353] jbd2_inode 1KB 3KB [ 469.877227] ext4_system_zone 0KB 3KB [ 469.883094] bio-1 1KB 3KB [ 469.889051] rpc_buffers 17KB 19KB [ 469.895165] rpc_tasks 2KB 3KB [ 469.901235] UNIX 1354KB 1407KB [ 469.907304] tcp_bind_bucket 0KB 4KB [ 469.913330] ip_fib_trie 0KB 3KB [ 469.919410] ip_fib_alias 0KB 3KB [ 469.925476] ip_dst_cache 3KB 8KB [ 469.931559] RAW 5KB 7KB [ 469.937652] UDP 29KB 31KB [ 469.943711] TCP 7KB 7KB [ 469.949776] hugetlbfs_inode_cache 1KB 7KB [ 469.956205] eventpoll_pwq 10KB 15KB [ 469.962271] eventpoll_epi 19KB 27KB [ 469.969069] inotify_inode_mark 4KB 7KB [ 469.975211] request_queue 31KB 39KB [ 469.981257] blkdev_ioc 23KB 23KB [ 469.987385] bio-0 476KB 476KB [ 469.993495] biovec-(1<<(21-12)) 536KB 536KB [ 469.999650] biovec-64 543KB 543KB [ 470.005738] biovec-16 52KB 52KB [ 470.011744] bio_integrity_payload 0KB 4KB [ 470.018121] khugepaged_mm_slot 0KB 3KB [ 470.024155] uid_cache 0KB 3KB [ 470.030222] dmaengine-unmap-2 0KB 3KB [ 470.035596] audit_buffer 0KB 3KB [ 470.040965] skbuff_fclone_cache 126KB 131KB [ 470.046510] skbuff_head_cache 1627KB 1668KB [ 470.051883] configfs_dir_cache 0KB 4KB [ 470.057324] file_lock_cache 153KB 154KB [ 470.062688] file_lock_ctx 1KB 3KB [ 470.068061] fsnotify_mark_connector 2KB 3KB [ 470.073950] shmem_inode_cache 876KB 879KB [ 470.079312] task_delay_info 278KB 407KB [ 470.084678] sigqueue 319KB 322KB [ 470.090041] kernfs_node_cache 1857KB 1862KB [ 470.095411] mnt_cache 14KB 20KB [ 470.101354] filp 8178KB 8216KB [ 470.106727] names_cache 113951KB 113980KB [ 470.112083] avc_node 37KB 39KB [ 470.117451] selinux_file_security 407KB 418KB [ 470.123171] selinux_inode_security 1891KB 1900KB [ 470.128962] key_jar 3KB 7KB [ 470.134326] nsproxy 0KB 3KB [ 470.139697] vm_area_struct 17006KB 17034KB [ 470.145054] mm_struct 3970KB 3984KB [ 470.150415] fs_cache 368KB 472KB [ 470.155786] files_cache 1382KB 1642KB [ 470.161155] signal_cache 2218KB 2623KB [ 470.166528] sighand_cache 201KB 256KB [ 470.171883] task_struct 9463KB 9463KB [ 470.177248] cred_jar 2197KB 2220KB [ 470.182617] anon_vma_chain 6953KB 6973KB [ 470.187971] anon_vma 121KB 288KB [ 470.193332] pid 193KB 288KB [ 470.198688] Acpi-Operand 106KB 170KB [ 470.204052] Acpi-Namespace 19KB 23KB [ 470.209433] numa_policy 0KB 3KB [ 470.214791] debug_objects_cache 444KB 446KB [ 470.220326] trace_event_file 144KB 147KB [ 470.225681] ftrace_event_field 254KB 255KB [ 470.231130] pool_workqueue 21KB 24KB [ 470.237290] page->ptl 2790KB 2802KB [ 470.242672] kmalloc-262144 1032KB 1032KB [ 470.248036] kmalloc-131072 650KB 650KB [ 470.253411] kmalloc-65536 264KB 264KB [ 470.258771] kmalloc-32768 495KB 495KB [ 470.264144] kmalloc-16384 148KB 148KB [ 470.269513] kmalloc-8192 420KB 420KB [ 470.274875] kmalloc-4096 8321KB 8351KB [ 470.280238] kmalloc-2048 2996KB 2996KB [ 470.285608] kmalloc-1024 4063KB 4063KB [ 470.290965] kmalloc-512 2850KB 3135KB [ 470.296327] kmalloc-256 1578KB 1901KB [ 470.301703] kmalloc-128 384KB 504KB [ 470.307058] kmalloc-96 1932KB 1932KB [ 470.312426] kmalloc-64 2317KB 2320KB [ 470.317798] kmalloc-32 2283KB 2291KB [ 470.323173] kmalloc-192 807KB 808KB [ 470.328527] kmem_cache 97KB 101KB [ 470.333886] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 470.342500] [ 1628] 0 1628 5385 172 90112 0 -1000 udevd [ 470.350660] [ 3036] 0 3036 14265 180 114688 0 0 rsyslogd [ 470.359059] [ 3091] 0 3091 4725 51 86016 0 0 cron [ 470.367121] [ 3115] 0 3115 3735 44 65536 0 0 mcstransd [ 470.375649] [ 3128] 0 3128 12490 153 139264 0 -1000 sshd [ 470.383706] [ 3161] 0 3161 3694 40 73728 0 0 getty [ 470.391852] [ 3162] 0 3162 3694 40 73728 0 0 getty [ 470.400035] [ 3163] 0 3163 3694 41 73728 0 0 getty [ 470.408190] [ 3164] 0 3164 3694 41 73728 0 0 getty [ 470.416347] [ 3165] 0 3165 3694 41 77824 0 0 getty [ 470.424483] [ 3166] 0 3166 3694 42 73728 0 0 getty [ 470.432631] [ 3167] 0 3167 3649 39 69632 0 0 getty [ 470.440786] [ 3170] 0 3170 5681 455 90112 0 -1000 udevd [ 470.448923] [ 3171] 0 3171 5681 455 90112 0 -1000 udevd [ 470.457072] [ 3191] 0 3191 17821 199 184320 0 0 sshd [ 470.465124] [ 3194] 0 3194 4371 0 32768 0 0 syzkaller005063 [ 470.474147] [ 3195] 0 3195 4371 0 32768 0 0 syzkaller005063 [ 470.483157] [ 3196] 0 3196 4371 0 32768 0 0 syzkaller005063 [ 470.492176] [ 3197] 0 3197 4371 0 32768 0 0 syzkaller005063 [ 470.501192] [ 3198] 0 3198 4371 0 32768 0 0 syzkaller005063 [ 470.510208] [ 3199] 0 3199 4371 0 32768 0 0 syzkaller005063 [ 470.519217] [ 3200] 0 3200 4371 0 32768 0 0 syzkaller005063 [ 470.528237] [ 3201] 0 3201 4371 0 32768 0 0 syzkaller005063 [ 470.537242] Out of memory: Kill process 3191 (sshd) score 0 or sacrifice child Connection to 10.128.0.7 closed by remote host. [ 470.545490] Killed process 3191 (sshd) total-vm:71284kB, anon