[....] Starting enhanced syslogd: rsyslogd[ 13.129560] audit: type=1400 audit(1516123781.270:5): avc: denied { syslog } for pid=3502 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 mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] 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: [ 18.595212] audit: type=1400 audit(1516123786.736:6): avc: denied { map } for pid=3643 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 '10.128.15.208' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program [ 24.775837] audit: type=1400 audit(1516123792.916:7): avc: denied { map } for pid=3657 comm="syzkaller610764" path="/root/syzkaller610764711" 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 [ 24.824384] audit: type=1400 audit(1516123792.916:8): avc: denied { map_create } for pid=3663 comm="syzkaller610764" 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 [ 31.017852] syzkaller610764 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 31.030361] syzkaller610764 cpuset=/ mems_allowed=0 [ 31.035696] CPU: 1 PID: 3663 Comm: syzkaller610764 Not tainted 4.15.0-rc7-mm1+ #56 [ 31.043389] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.052727] Call Trace: [ 31.055300] dump_stack+0x194/0x257 [ 31.058900] ? arch_local_irq_restore+0x53/0x53 [ 31.063541] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 31.068708] dump_header+0x28c/0xe2b [ 31.072397] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 31.077561] ? pagefault_out_of_memory+0x145/0x145 [ 31.082466] ? print_irqtrace_events+0x270/0x270 [ 31.087200] ? avc_has_perm_noaudit+0x37e/0x520 [ 31.091842] ? check_noncircular+0x20/0x20 [ 31.096059] ? reacquire_held_locks+0x1f9/0x3e0 [ 31.100694] ? reacquire_held_locks+0x1f9/0x3e0 [ 31.105334] ? check_noncircular+0x20/0x20 [ 31.109536] ? task_will_free_mem+0x252/0xaa0 [ 31.113999] ? check_noncircular+0x20/0x20 [ 31.118213] ? print_irqtrace_events+0x270/0x270 [ 31.122946] ? ___ratelimit+0x30d/0x630 [ 31.126892] ? lock_downgrade+0x980/0x980 [ 31.131024] ? lock_release+0xa40/0xa40 [ 31.134973] ? mark_held_locks+0xaf/0x100 [ 31.139091] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 31.144166] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 31.149242] ? trace_hardirqs_on+0xd/0x10 [ 31.153361] ? ___ratelimit+0x95/0x630 [ 31.157218] ? idr_get_free_cmn+0xfd0/0xfd0 [ 31.161517] ? check_noncircular+0x20/0x20 [ 31.165732] oom_kill_process+0x81b/0x9f0 [ 31.169935] ? oom_badness+0xd1/0x980 [ 31.173712] ? lock_release+0xa40/0xa40 [ 31.177682] ? oom_kill_memcg_member+0x20/0x20 [ 31.182243] ? oom_evaluate_task+0x480/0x480 [ 31.186628] ? out_of_memory+0xe1c/0x1790 [ 31.190746] ? lock_downgrade+0x980/0x980 [ 31.194868] ? lock_release+0xa40/0xa40 [ 31.198816] ? find_next_bit+0xcc/0x100 [ 31.202770] ? oom_evaluate_task+0x284/0x480 [ 31.207152] out_of_memory+0x9d5/0x1790 [ 31.211107] ? oom_killer_disable+0x310/0x310 [ 31.215580] ? mutex_trylock+0x23a/0x2d0 [ 31.219607] ? __alloc_pages_slowpath+0xf63/0x2cc0 [ 31.224505] ? __lock_is_held+0xb6/0x140 [ 31.228535] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 31.233975] __alloc_pages_slowpath+0x1ce4/0x2cc0 [ 31.238820] ? warn_alloc+0x2b0/0x2b0 [ 31.242594] ? lock_release+0xa40/0xa40 [ 31.246547] ? print_irqtrace_events+0x270/0x270 [ 31.251287] ? mutex_spin_on_owner+0x446/0xb50 [ 31.255848] ? __lock_acquire+0x664/0x3e00 [ 31.260064] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 31.265916] ? lock_release+0xa40/0xa40 [ 31.269883] ? __lock_is_held+0xb6/0x140 [ 31.273930] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 31.279784] ? find_held_lock+0x35/0x1d0 [ 31.283824] ? __might_sleep+0x95/0x190 [ 31.287776] __alloc_pages_nodemask+0x9fb/0xd80 [ 31.292423] ? __alloc_pages_slowpath+0x2cc0/0x2cc0 [ 31.297432] ? pcpu_chunk_refresh_hint+0x425/0x570 [ 31.302337] ? print_irqtrace_events+0x270/0x270 [ 31.307069] ? __lock_is_held+0xb6/0x140 [ 31.311119] ? find_next_bit+0xcc/0x100 [ 31.315071] pcpu_populate_chunk+0x1b3/0x880 [ 31.319447] ? find_next_bit+0x7/0x100 [ 31.323341] pcpu_alloc+0x978/0x10e0 [ 31.327038] ? pcpu_free_area+0xa00/0xa00 [ 31.331158] ? __pte_alloc_kernel+0x1bd/0x2a0 [ 31.335627] ? vmap_page_range_noflush+0x523/0x720 [ 31.340548] ? map_vm_area+0x9e/0xd0 [ 31.344234] ? __vmalloc_node_range+0x37a/0x650 [ 31.348883] ? array_map_alloc+0x354/0x990 [ 31.353093] ? __vmalloc_node_flags_caller+0x50/0x60 [ 31.358172] __alloc_percpu_gfp+0x27/0x30 [ 31.362294] array_map_alloc+0x794/0x990 [ 31.366338] SyS_bpf+0x7f8/0x4400 [ 31.369764] ? perf_event_mmap+0x115/0x12a0 [ 31.374064] ? bpf_prog_get+0x20/0x20 [ 31.377838] ? perf_event_fork+0x30/0x30 [ 31.381877] ? __lock_is_held+0xb6/0x140 [ 31.385908] ? check_noncircular+0x20/0x20 [ 31.390120] ? vma_wants_writenotify+0x51/0x3b0 [ 31.394765] ? __handle_mm_fault+0x80e/0x3ce0 [ 31.399239] ? check_noncircular+0x20/0x20 [ 31.403449] ? __pmd_alloc+0x4e0/0x4e0 [ 31.407306] ? vma_link+0xe9/0x170 [ 31.410824] ? find_held_lock+0x35/0x1d0 [ 31.414864] ? handle_mm_fault+0x2a0/0x930 [ 31.419072] ? find_held_lock+0x35/0x1d0 [ 31.423114] ? __do_page_fault+0x5f7/0xc90 [ 31.427320] ? lock_downgrade+0x980/0x980 [ 31.431448] ? handle_mm_fault+0x476/0x930 [ 31.435651] ? down_read_trylock+0xdb/0x170 [ 31.439943] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 31.444491] ? vmacache_find+0x5f/0x280 [ 31.448437] ? vmacache_update+0xfe/0x130 [ 31.452562] ? up_read+0x1a/0x40 [ 31.455900] ? __do_page_fault+0x3d6/0xc90 [ 31.460117] ? mm_fault_error+0x2c0/0x2c0 [ 31.464249] ? do_page_fault+0xee/0x720 [ 31.468194] ? __do_page_fault+0xc90/0xc90 [ 31.472411] ? SyS_mmap_pgoff+0x243/0x5f0 [ 31.476539] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 31.481282] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 31.486018] RIP: 0033:0x440139 [ 31.489322] RSP: 002b:00007fff19894578 EFLAGS: 00000217 ORIG_RAX: 0000000000000141 [ 31.497011] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 0000000000440139 [ 31.504256] RDX: 000000000000002c RSI: 0000000020c47fec RDI: 0000000000000000 [ 31.511495] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 31.518743] R10: 00000000ffffffff R11: 0000000000000217 R12: 00000000004016a0 [ 31.525983] R13: 0000000000401730 R14: 0000000000000000 R15: 0000000000000000 [ 31.533290] Mem-Info: [ 31.537162] active_anon:7880 inactive_anon:64 isolated_anon:0 [ 31.537162] active_file:38 inactive_file:0 isolated_file:0 [ 31.537162] unevictable:0 dirty:7 writeback:0 unstable:0 [ 31.537162] slab_reclaimable:7298 slab_unreclaimable:83015 [ 31.537162] mapped:24 shmem:70 pagetables:348 bounce:0 [ 31.537162] free:24004 free_pcp:11 free_cma:0 [ 31.569498] Node 0 active_anon:31520kB inactive_anon:256kB active_file:152kB inactive_file:100kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:96kB dirty:28kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 16384kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 31.596733] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB 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 [ 31.622915] lowmem_reserve[]: 0 2870 6381 6381 [ 31.627519] Node 0 DMA32 free:43492kB min:30328kB low:37908kB high:45488kB active_anon:28kB inactive_anon:4kB active_file:0kB inactive_file:8kB unevictable:0kB writepending:0kB present:3129332kB managed:2942308kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 31.654777] lowmem_reserve[]: 0 0 3510 3510 [ 31.659127] Node 0 Normal free:36616kB min:37084kB low:46352kB high:55620kB active_anon:31492kB inactive_anon:252kB active_file:84kB inactive_file:0kB unevictable:0kB writepending:128kB present:4718592kB managed:3594624kB mlocked:0kB kernel_stack:3104kB pagetables:1392kB bounce:0kB free_pcp:32kB local_pcp:4kB free_cma:0kB [ 31.687760] lowmem_reserve[]: 0 0 0 0 [ 31.691565] 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 [ 31.705204] Node 0 DMA32: 7*4kB (UME) 7*8kB (UME) 5*16kB (UME) 6*32kB (UME) 4*64kB (UM) 5*128kB (ME) 5*256kB (ME) 4*512kB (ME) 4*1024kB (UME) 3*2048kB (ME) 7*4096kB (M) = 43492kB [ 31.722390] Node 0 Normal: 501*4kB (UM) 413*8kB (UM) 274*16kB (UM) 149*32kB (UME) 61*64kB (UM) 19*128kB (UM) 26*256kB (M) 18*512kB (UM) 0*1024kB 0*2048kB 0*4096kB = 36668kB [ 31.737997] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 31.746583] 96 total pagecache pages [ 31.750292] 0 pages in swap cache [ 31.753743] Swap cache stats: add 0, delete 0, find 0/0 [ 31.759110] Free swap = 0kB [ 31.762123] Total swap = 0kB [ 31.765137] 1965979 pages RAM [ 31.768236] 0 pages HighMem/MovableOnly [ 31.772198] 327769 pages reserved [ 31.775715] Unreclaimable slab info: [ 31.779533] Name Used Total [ 31.785158] hashtab_node 118KB 119KB [ 31.790528] ebitmap_node 382KB 385KB [ 31.795970] avtab_node 1012KB 1017KB [ 31.801341] TIPC 1KB 7KB [ 31.806722] SCTPv6 2KB 4KB [ 31.812078] DCCPv6 2KB 7KB [ 31.817449] DCCP 2KB 6KB [ 31.822824] fib6_nodes 0KB 4KB [ 31.828184] ip6_dst_cache 5KB 7KB [ 31.833554] RAWv6 9KB 13KB [ 31.838917] UDPv6 12KB 14KB [ 31.844272] TCPv6 2KB 5KB [ 31.849654] sd_ext_cdb 0KB 3KB [ 31.855032] scsi_sense_cache 79KB 136KB [ 31.860390] virtio_scsi_cmd 16KB 16KB [ 31.865760] sgpool-128 8KB 8KB [ 31.871133] sgpool-64 4KB 6KB [ 31.876491] sgpool-32 55KB 63KB [ 31.881853] sgpool-16 28KB 30KB [ 31.887217] sgpool-8 165KB 165KB [ 31.892578] cfq_io_cq 17KB 19KB [ 31.897938] cfq_queue 24KB 30KB [ 31.903304] mqueue_inode_cache 1KB 7KB [ 31.908758] nfs_commit_data 3KB 7KB [ 31.914114] nfs_write_data 34KB 37KB [ 31.919484] jbd2_inode 1KB 3KB [ 31.924860] ext4_system_zone 0KB 3KB [ 31.930241] bio-1 1KB 3KB [ 31.935617] rpc_buffers 17KB 19KB [ 31.940980] rpc_tasks 2KB 3KB [ 31.946357] UNIX 780KB 780KB [ 31.951727] tcp_bind_bucket 0KB 4KB [ 31.957114] ip_fib_trie 0KB 3KB [ 31.962483] ip_fib_alias 0KB 3KB [ 31.967847] ip_dst_cache 3KB 4KB [ 31.973221] RAW 5KB 7KB [ 31.978581] UDP 29KB 39KB [ 31.983934] TCP 7KB 7KB [ 31.989298] hugetlbfs_inode_cache 1KB 7KB [ 31.995033] eventpoll_pwq 10KB 11KB [ 32.000390] eventpoll_epi 18KB 23KB [ 32.005755] inotify_inode_mark 3KB 7KB [ 32.011217] request_queue 54KB 136KB [ 32.016574] blkdev_ioc 23KB 23KB [ 32.021921] bio-0 269KB 270KB [ 32.027282] biovec-(1<<(21-12)) 453KB 453KB [ 32.032813] biovec-64 94KB 102KB [ 32.038170] biovec-16 10KB 15KB [ 32.043535] bio_integrity_payload 0KB 4KB [ 32.049252] khugepaged_mm_slot 0KB 3KB [ 32.054701] uid_cache 0KB 3KB [ 32.060051] dmaengine-unmap-2 0KB 3KB [ 32.065414] audit_buffer 0KB 3KB [ 32.070772] skbuff_fclone_cache 135KB 138KB [ 32.076295] skbuff_head_cache 1620KB 1620KB [ 32.081657] configfs_dir_cache 0KB 4KB [ 32.087114] file_lock_cache 160KB 162KB [ 32.092473] file_lock_ctx 1KB 3KB [ 32.097838] fsnotify_mark_connector 2KB 3KB [ 32.103731] shmem_inode_cache 1045KB 1046KB [ 32.109124] task_delay_info 320KB 320KB [ 32.114499] sigqueue 368KB 374KB [ 32.119854] kernfs_node_cache 2288KB 2295KB [ 32.125223] mnt_cache 15KB 16KB [ 32.130591] filp 8426KB 8842KB [ 32.135949] names_cache 110619KB 110657KB [ 32.141320] avc_node 38KB 39KB [ 32.146681] selinux_file_security 429KB 488KB [ 32.152383] selinux_inode_security 1956KB 1956KB [ 32.158182] key_jar 3KB 7KB [ 32.163551] nsproxy 0KB 3KB [ 32.168913] vm_area_struct 18690KB 18690KB [ 32.174264] mm_struct 4525KB 4531KB [ 32.179630] fs_cache 427KB 432KB [ 32.184987] files_cache 1597KB 1597KB [ 32.190344] signal_cache 2544KB 2544KB [ 32.195706] sighand_cache 231KB 339KB [ 32.201078] task_struct 10853KB 10853KB [ 32.206439] cred_jar 2359KB 2360KB [ 32.211809] anon_vma_chain 7835KB 7835KB [ 32.217186] anon_vma 160KB 338KB [ 32.222548] pid 221KB 228KB [ 32.227900] Acpi-Operand 106KB 170KB [ 32.233267] Acpi-ParseExt 0KB 3KB [ 32.238628] Acpi-Parse 0KB 3KB [ 32.243983] Acpi-State 0KB 7KB [ 32.249351] Acpi-Namespace 19KB 23KB [ 32.254723] numa_policy 0KB 3KB [ 32.260074] debug_objects_cache 531KB 531KB [ 32.265623] trace_event_file 145KB 147KB [ 32.270986] ftrace_event_field 257KB 259KB [ 32.276433] pool_workqueue 24KB 28KB [ 32.281803] page->ptl 3105KB 3107KB [ 32.287199] kmalloc-262144 1032KB 1032KB [ 32.292562] kmalloc-131072 650KB 650KB [ 32.297913] kmalloc-65536 264KB 264KB [ 32.303278] kmalloc-32768 825KB 825KB [ 32.308635] kmalloc-16384 181KB 181KB [ 32.313989] kmalloc-8192 519KB 519KB [ 32.319356] kmalloc-4096 6672KB 6710KB [ 32.324715] kmalloc-2048 4468KB 4468KB [ 32.330067] kmalloc-1024 2858KB 2858KB [ 32.335432] kmalloc-512 2782KB 2782KB [ 32.340791] kmalloc-256 1978KB 2452KB [ 32.346144] kmalloc-128 410KB 507KB [ 32.351505] kmalloc-96 2048KB 2048KB [ 32.356861] kmalloc-64 2464KB 2464KB [ 32.362212] kmalloc-32 2401KB 2401KB [ 32.367659] kmalloc-192 908KB 908KB [ 32.373041] kmem_cache 100KB 105KB [ 32.378399] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 32.387083] [ 1823] 0 1823 5385 183 86016 0 -1000 udevd [ 32.395387] [ 3371] 0 3371 2493 572 61440 0 0 dhclient [ 32.403813] [ 3502] 0 3502 14265 109 126976 0 0 rsyslogd [ 32.412217] [ 3557] 0 3557 4725 51 81920 0 0 cron [ 32.420267] [ 3560] 0 3560 3736 44 69632 0 0 mcstransd [ 32.428751] [ 3585] 0 3585 12927 1227 126976 0 0 restorecond [ 32.437424] [ 3586] 0 3586 12490 152 135168 0 -1000 sshd [ 32.445499] [ 3627] 0 3627 3694 40 73728 0 0 getty [ 32.453656] [ 3628] 0 3628 3694 41 77824 0 0 getty [ 32.461814] [ 3629] 0 3629 3694 41 73728 0 0 getty [ 32.469956] [ 3630] 0 3630 3694 40 77824 0 0 getty [ 32.478094] [ 3631] 0 3631 3694 41 77824 0 0 getty [ 32.486232] [ 3632] 0 3632 3694 39 77824 0 0 getty [ 32.494372] [ 3633] 0 3633 3649 40 77824 0 0 getty [ 32.502511] [ 3638] 0 3638 5681 455 86016 0 -1000 udevd [ 32.510663] [ 3639] 0 3639 5681 455 86016 0 -1000 udevd [ 32.518803] [ 3655] 0 3655 17821 198 188416 0 0 sshd [ 32.526858] [ 3657] 0 3657 280 1 32768 0 0 syzkaller610764 [ 32.535872] [ 3658] 0 3658 4375 522 36864 0 0 syzkaller610764 [ 32.544883] [ 3659] 0 3659 4375 522 36864 0 0 syzkaller610764 [ 32.553900] [ 3660] 0 3660 4375 522 36864 0 0 syzkaller610764 [ 32.562918] [ 3661] 0 3661 4375 522 36864 0 0 syzkaller610764 [ 32.571927] [ 3662] 0 3662 4375 522 36864 0 0 syzkaller610764 [ 32.580933] [ 3663] 0 3663 4375 522 36864 0 0 syzkaller610764 [ 32.589936] [ 3664] 0 3664 4375 522 36864 0 0 syzkaller610764 [ 32.598940] [ 3665] 0 3665 4375 522 36864 0 0 syzkaller610764 [ 32.607942] Out of memory: Kill process 3585 (restorecond) score 0 or sacrifice child [ 32.616669] Killed process 3585 (restorecond) total-vm:51708kB, anon-rss:4908kB, file-rss:0kB, shmem-rss:0kB [ 32.645840] syzkaller610764 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 32.658190] syzkaller610764 cpuset=/ mems_allowed=0 [ 32.663212] CPU: 0 PID: 3665 Comm: syzkaller610764 Not tainted 4.15.0-rc7-mm1+ #56 [ 32.670885] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.680208] Call Trace: [ 32.682769] dump_stack+0x194/0x257 [ 32.686368] ? arch_local_irq_restore+0x53/0x53 [ 32.691016] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 32.696181] dump_header+0x28c/0xe2b [ 32.699869] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 32.705045] ? pagefault_out_of_memory+0x145/0x145 [ 32.709954] ? print_irqtrace_events+0x270/0x270 [ 32.714685] ? avc_has_perm_noaudit+0x37e/0x520 [ 32.719360] ? check_noncircular+0x20/0x20 [ 32.723572] ? check_noncircular+0x20/0x20 [ 32.727784] ? print_irqtrace_events+0x270/0x270 [ 32.732520] ? reacquire_held_locks+0x1f9/0x3e0 [ 32.737168] ? reacquire_held_locks+0x1f9/0x3e0 [ 32.741808] ? check_noncircular+0x20/0x20 [ 32.746011] ? task_will_free_mem+0x252/0xaa0 [ 32.750475] ? check_noncircular+0x20/0x20 [ 32.754688] ? print_irqtrace_events+0x270/0x270 [ 32.759434] ? ___ratelimit+0x30d/0x630 [ 32.763383] ? lock_downgrade+0x980/0x980 [ 32.767503] ? lock_release+0xa40/0xa40 [ 32.771459] ? mark_held_locks+0xaf/0x100 [ 32.775581] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 32.780653] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 32.785640] ? trace_hardirqs_on+0xd/0x10 [ 32.789760] ? ___ratelimit+0x95/0x630 [ 32.793618] ? idr_get_free_cmn+0xfd0/0xfd0 [ 32.797912] ? check_noncircular+0x20/0x20 [ 32.802123] oom_kill_process+0x81b/0x9f0 [ 32.806240] ? oom_badness+0xd1/0x980 [ 32.810011] ? lock_release+0xa40/0xa40 [ 32.813964] ? oom_kill_memcg_member+0x20/0x20 [ 32.818513] ? mark_held_locks+0xaf/0x100 [ 32.822641] ? oom_evaluate_task+0x480/0x480 [ 32.827025] ? out_of_memory+0xe1c/0x1790 [ 32.831144] ? lock_downgrade+0x980/0x980 [ 32.835263] ? lock_release+0xa40/0xa40 [ 32.839203] ? find_next_bit+0xcc/0x100 [ 32.843155] ? oom_evaluate_task+0x284/0x480 [ 32.847534] out_of_memory+0x9d5/0x1790 [ 32.851496] ? oom_killer_disable+0x310/0x310 [ 32.855973] ? mutex_trylock+0x23a/0x2d0 [ 32.860002] ? __alloc_pages_slowpath+0xf63/0x2cc0 [ 32.864901] ? __lock_is_held+0xb6/0x140 [ 32.868932] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 32.874364] __alloc_pages_slowpath+0x1ce4/0x2cc0 [ 32.879190] ? lock_downgrade+0x980/0x980 [ 32.883321] ? warn_alloc+0x2b0/0x2b0 [ 32.887097] ? trace_hardirqs_off+0xd/0x10 [ 32.891302] ? print_irqtrace_events+0x270/0x270 [ 32.896042] ? lock_acquire+0x1d5/0x580 [ 32.899983] ? lock_acquire+0x1d5/0x580 [ 32.903928] ? __lock_acquire+0x664/0x3e00 [ 32.908136] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 32.913990] ? lock_release+0xa40/0xa40 [ 32.917949] ? __lock_is_held+0xb6/0x140 [ 32.921992] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 32.927853] ? __might_sleep+0x95/0x190 [ 32.931800] __alloc_pages_nodemask+0x9fb/0xd80 [ 32.936439] ? lock_release+0xa40/0xa40 [ 32.940394] ? __alloc_pages_slowpath+0x2cc0/0x2cc0 [ 32.945389] ? pcpu_chunk_refresh_hint+0x425/0x570 [ 32.950291] ? print_irqtrace_events+0x270/0x270 [ 32.955021] ? __lock_is_held+0xb6/0x140 [ 32.959057] ? find_next_bit+0xcc/0x100 [ 32.963015] pcpu_populate_chunk+0x1b3/0x880 [ 32.967391] ? find_next_bit+0x7/0x100 [ 32.971257] pcpu_alloc+0x978/0x10e0 [ 32.974952] ? pcpu_free_area+0xa00/0xa00 [ 32.979075] ? vmap_page_range_noflush+0x523/0x720 [ 32.983995] ? map_vm_area+0x9e/0xd0 [ 32.987681] ? __vmalloc_node_range+0x37a/0x650 [ 32.992329] ? array_map_alloc+0x354/0x990 [ 32.996532] ? __vmalloc_node_flags_caller+0x50/0x60 [ 33.001608] __alloc_percpu_gfp+0x27/0x30 [ 33.005732] array_map_alloc+0x794/0x990 [ 33.009771] SyS_bpf+0x7f8/0x4400 [ 33.013196] ? perf_event_mmap+0x115/0x12a0 [ 33.017494] ? bpf_prog_get+0x20/0x20 [ 33.021273] ? perf_event_fork+0x30/0x30 [ 33.025310] ? __lock_is_held+0xb6/0x140 [ 33.029341] ? check_noncircular+0x20/0x20 [ 33.033542] ? vma_wants_writenotify+0x51/0x3b0 [ 33.038186] ? __handle_mm_fault+0x80e/0x3ce0 [ 33.042663] ? check_noncircular+0x20/0x20 [ 33.046864] ? __pmd_alloc+0x4e0/0x4e0 [ 33.050717] ? vma_link+0xe9/0x170 [ 33.054231] ? find_held_lock+0x35/0x1d0 [ 33.058266] ? handle_mm_fault+0x2a0/0x930 [ 33.062473] ? find_held_lock+0x35/0x1d0 [ 33.066511] ? __do_page_fault+0x5f7/0xc90 [ 33.070714] ? lock_downgrade+0x980/0x980 [ 33.074855] ? handle_mm_fault+0x476/0x930 [ 33.079053] ? down_read_trylock+0xdb/0x170 [ 33.083358] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 33.087908] ? vmacache_find+0x5f/0x280 [ 33.091854] ? vmacache_update+0xfe/0x130 [ 33.096004] ? up_read+0x1a/0x40 [ 33.099341] ? __do_page_fault+0x3d6/0xc90 [ 33.103549] ? mm_fault_error+0x2c0/0x2c0 [ 33.107674] ? do_page_fault+0xee/0x720 [ 33.111618] ? __do_page_fault+0xc90/0xc90 [ 33.115843] ? SyS_mmap_pgoff+0x243/0x5f0 [ 33.119978] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 33.124711] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 33.129435] RIP: 0033:0x440139 [ 33.132592] RSP: 002b:00007fff19894578 EFLAGS: 00000217 ORIG_RAX: 0000000000000141 [ 33.140267] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 0000000000440139 [ 33.147505] RDX: 000000000000002c RSI: 0000000020c47fec RDI: 0000000000000000 [ 33.154743] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 33.161982] R10: 00000000ffffffff R11: 0000000000000217 R12: 00000000004016a0 [ 33.169228] R13: 0000000000401730 R14: 0000000000000000 R15: 0000000000000000 [ 33.176571] Mem-Info: [ 33.179071] active_anon:6650 inactive_anon:64 isolated_anon:0 [ 33.179071] active_file:13 inactive_file:29 isolated_file:0 [ 33.179071] unevictable:0 dirty:0 writeback:0 unstable:0 [ 33.179071] slab_reclaimable:7299 slab_unreclaimable:83003 [ 33.179071] mapped:2 shmem:70 pagetables:322 bounce:0 [ 33.179071] free:24079 free_pcp:0 free_cma:0 [ 33.211708] Node 0 active_anon:26600kB inactive_anon:256kB active_file:52kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 16384kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 33.239489] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB 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 [ 33.265677] lowmem_reserve[]: 0 2870 6381 6381 [ 33.270305] Node 0 DMA32 free:43492kB min:30328kB low:37908kB high:45488kB active_anon:28kB inactive_anon:4kB active_file:8kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2942308kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 33.297582] lowmem_reserve[]: 0 0 3510 3510 [ 33.301929] Node 0 Normal free:36916kB min:37084kB low:46352kB high:55620kB active_anon:26572kB inactive_anon:252kB active_file:44kB inactive_file:0kB unevictable:0kB writepending:0kB present:4718592kB managed:3594624kB mlocked:0kB kernel_stack:3072kB pagetables:1288kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 33.330313] lowmem_reserve[]: 0 0 0 0 [ 33.334152] 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 [ 33.348438] Node 0 DMA32: 7*4kB (UME) 7*8kB (UME) 5*16kB (UME) 6*32kB (UME) 4*64kB (UM) 5*128kB (ME) 5*256kB (ME) 4*512kB (ME) 4*1024kB (UME) 3*2048kB (ME) 7*4096kB (M) = 43492kB [ 33.364625] Node 0 Normal: 482*4kB (UME) 398*8kB (ME) 262*16kB (UME) 157*32kB (UM) 84*64kB (UME) 21*128kB (UM) 25*256kB (UM) 16*512kB (UM) 0*1024kB 0*2048kB 0*4096kB = 36984kB [ 33.380540] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 33.389152] 112 total pagecache pages [ 33.392964] 0 pages in swap cache [ 33.396428] Swap cache stats: add 0, delete 0, find 0/0 [ 33.401797] Free swap = 0kB [ 33.404819] Total swap = 0kB [ 33.407838] 1965979 pages RAM [ 33.410943] 0 pages HighMem/MovableOnly [ 33.414907] 327769 pages reserved [ 33.418357] Unreclaimable slab info: [ 33.422072] Name Used Total [ 33.427623] hashtab_node 118KB 119KB [ 33.432982] ebitmap_node 382KB 385KB [ 33.438367] avtab_node 1012KB 1017KB [ 33.443744] TIPC 1KB 7KB [ 33.449120] SCTPv6 2KB 4KB [ 33.454496] DCCPv6 2KB 7KB [ 33.459853] DCCP 2KB 6KB [ 33.465236] fib6_nodes 0KB 4KB [ 33.470611] ip6_dst_cache 5KB 7KB [ 33.475984] RAWv6 9KB 13KB [ 33.482242] UDPv6 12KB 14KB [ 33.487633] TCPv6 2KB 5KB [ 33.493004] sd_ext_cdb 0KB 3KB [ 33.498392] scsi_sense_cache 79KB 136KB [ 33.503762] virtio_scsi_cmd 16KB 16KB [ 33.509138] sgpool-128 8KB 8KB [ 33.514510] sgpool-64 4KB 6KB [ 33.519877] sgpool-32 63KB 63KB [ 33.525251] sgpool-16 30KB 30KB [ 33.530623] sgpool-8 165KB 165KB [ 33.535994] cfq_io_cq 17KB 19KB [ 33.541368] cfq_queue 29KB 30KB [ 33.546725] mqueue_inode_cache 1KB 7KB [ 33.552812] nfs_commit_data 3KB 7KB [ 33.558179] nfs_write_data 34KB 37KB [ 33.563555] jbd2_inode 1KB 3KB [ 33.568930] ext4_system_zone 0KB 3KB [ 33.574313] bio-1 1KB 3KB [ 33.579685] rpc_buffers 17KB 19KB [ 33.585055] rpc_tasks 2KB 3KB [ 33.590429] UNIX 780KB 780KB [ 33.595810] tcp_bind_bucket 0KB 4KB [ 33.601184] ip_fib_trie 0KB 3KB [ 33.606544] ip_fib_alias 0KB 3KB [ 33.611911] ip_dst_cache 3KB 4KB [ 33.618094] RAW 5KB 7KB [ 33.623480] UDP 29KB 39KB [ 33.628860] TCP 7KB 7KB [ 33.634235] hugetlbfs_inode_cache 1KB 7KB [ 33.639958] eventpoll_pwq 10KB 11KB [ 33.645333] eventpoll_epi 18KB 23KB [ 33.650710] inotify_inode_mark 3KB 7KB [ 33.656200] request_queue 54KB 136KB [ 33.661580] blkdev_ioc 23KB 23KB [ 33.666944] bio-0 273KB 273KB [ 33.672312] biovec-(1<<(21-12)) 453KB 453KB [ 33.677872] biovec-64 102KB 102KB [ 33.683249] biovec-16 15KB 15KB [ 33.688623] bio_integrity_payload 0KB 4KB [ 33.696095] khugepaged_mm_slot 0KB 3KB [ 33.702451] uid_cache 0KB 3KB [ 33.708549] dmaengine-unmap-2 0KB 3KB [ 33.714866] audit_buffer 0KB 3KB [ 33.721763] skbuff_fclone_cache 135KB 138KB [ 33.728720] skbuff_head_cache 1620KB 1620KB [ 33.734940] configfs_dir_cache 0KB 4KB [ 33.741677] file_lock_cache 160KB 162KB [ 33.747936] file_lock_ctx 1KB 3KB [ 33.754866] fsnotify_mark_connector 2KB 3KB [ 33.761684] shmem_inode_cache 1045KB 1046KB [ 33.768206] task_delay_info 320KB 320KB [ 33.774383] sigqueue 368KB 374KB [ 33.780529] kernfs_node_cache 2288KB 2295KB [ 33.787636] mnt_cache 15KB 16KB [ 33.793914] filp 8426KB 8842KB [ 33.800137] names_cache 110619KB 110657KB [ 33.805516] avc_node 38KB 39KB [ 33.810891] selinux_file_security 429KB 488KB [ 33.816610] selinux_inode_security 1956KB 1956KB [ 33.822415] key_jar 3KB 7KB [ 33.827788] nsproxy 0KB 3KB [ 33.833160] vm_area_struct 18690KB 18690KB [ 33.838529] mm_struct 4525KB 4531KB [ 33.843921] fs_cache 427KB 432KB [ 33.849294] files_cache 1597KB 1597KB [ 33.854667] signal_cache 2544KB 2544KB [ 33.860042] sighand_cache 231KB 339KB [ 33.865413] task_struct 10853KB 10853KB [ 33.870787] cred_jar 2359KB 2360KB [ 33.876162] anon_vma_chain 7835KB 7835KB [ 33.881539] anon_vma 160KB 338KB [ 33.886920] pid 221KB 228KB [ 33.892296] Acpi-Operand 106KB 170KB [ 33.897667] Acpi-ParseExt 0KB 3KB [ 33.903040] Acpi-Parse 0KB 3KB [ 33.908438] Acpi-State 0KB 7KB [ 33.913824] Acpi-Namespace 19KB 23KB [ 33.919244] numa_policy 0KB 3KB [ 33.924704] debug_objects_cache 531KB 531KB [ 33.930255] trace_event_file 145KB 147KB [ 33.935632] ftrace_event_field 257KB 259KB [ 33.941091] pool_workqueue 24KB 28KB [ 33.946468] page->ptl 3105KB 3107KB [ 33.951864] kmalloc-262144 1032KB 1032KB [ 33.957237] kmalloc-131072 650KB 650KB [ 33.962610] kmalloc-65536 264KB 264KB [ 33.967988] kmalloc-32768 825KB 825KB [ 33.973378] kmalloc-16384 181KB 181KB [ 33.978750] kmalloc-8192 519KB 519KB [ 33.984106] kmalloc-4096 6672KB 6710KB [ 33.989471] kmalloc-2048 4481KB 4481KB [ 33.994841] kmalloc-1024 2858KB 2858KB [ 34.000215] kmalloc-512 2782KB 2782KB [ 34.005587] kmalloc-256 1978KB 2452KB [ 34.010958] kmalloc-128 410KB 507KB [ 34.016338] kmalloc-96 2052KB 2052KB [ 34.021712] kmalloc-64 2468KB 2468KB [ 34.027083] kmalloc-32 2401KB 2401KB [ 34.032458] kmalloc-192 912KB 912KB [ 34.037858] kmem_cache 100KB 105KB [ 34.044174] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 34.053670] [ 1823] 0 1823 5385 183 86016 0 -1000 udevd [ 34.061861] [ 3371] 0 3371 2493 572 61440 0 0 dhclient [ 34.070287] [ 3502] 0 3502 14265 108 126976 0 0 rsyslogd [ 34.078711] [ 3557] 0 3557 4725 51 81920 0 0 cron [ 34.086773] [ 3560] 0 3560 3736 44 69632 0 0 mcstransd [ 34.095286] [ 3586] 0 3586 12490 152 135168 0 -1000 sshd [ 34.103477] [ 3627] 0 3627 3694 40 73728 0 0 getty [ 34.111645] [ 3628] 0 3628 3694 41 77824 0 0 getty [ 34.119810] [ 3629] 0 3629 3694 41 73728 0 0 getty [ 34.127982] [ 3630] 0 3630 3694 40 77824 0 0 getty [ 34.136149] [ 3631] 0 3631 3694 41 77824 0 0 getty [ 34.144321] [ 3632] 0 3632 3694 39 77824 0 0 getty [ 34.152488] [ 3633] 0 3633 3649 40 77824 0 0 getty [ 34.160653] [ 3638] 0 3638 5681 455 86016 0 -1000 udevd [ 34.168843] [ 3639] 0 3639 5681 455 86016 0 -1000 udevd [ 34.177045] [ 3655] 0 3655 17821 198 188416 0 0 sshd [ 34.185136] [ 3657] 0 3657 280 1 32768 0 0 syzkaller610764 [ 34.194161] [ 3658] 0 3658 4375 522 36864 0 0 syzkaller610764 [ 34.203188] [ 3659] 0 3659 4375 522 36864 0 0 syzkaller610764 [ 34.212214] [ 3660] 0 3660 4375 522 36864 0 0 syzkaller610764 [ 34.221246] [ 3661] 0 3661 4375 522 36864 0 0 syzkaller610764 [ 34.230282] [ 3662] 0 3662 4375 522 36864 0 0 syzkaller610764 [ 34.239320] [ 3663] 0 3663 4375 522 36864 0 0 syzkaller610764 [ 34.248350] [ 3664] 0 3664 4375 522 36864 0 0 syzkaller610764 [ 34.257389] [ 3665] 0 3665 4375 522 36864 0 0 syzkaller610764 [ 34.266430] Out of memory: Kill process 3371 (dhclient) score 0 or sacrifice child [ 34.274197] Killed process 3371 (dhclient) total-vm:9972kB, anon-rss:2288kB, file-rss:0kB, shmem-rss:0kB [ 34.287229] oom_reaper: reaped process 3371 (dhclient), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 34.305140] rsyslogd invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=0 [ 34.316818] rsyslogd cpuset=/ mems_allowed=0 [ 34.321516] CPU: 0 PID: 3505 Comm: rsyslogd Not tainted 4.15.0-rc7-mm1+ #56 [ 34.328681] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.338014] Call Trace: [ 34.340579] dump_stack+0x194/0x257 [ 34.344188] ? arch_local_irq_restore+0x53/0x53 [ 34.348832] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 34.354003] dump_header+0x28c/0xe2b [ 34.357700] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 34.362865] ? pagefault_out_of_memory+0x145/0x145 [ 34.367772] ? print_irqtrace_events+0x270/0x270 [ 34.372508] ? avc_has_perm_noaudit+0x37e/0x520 [ 34.377168] ? check_noncircular+0x20/0x20 [ 34.381384] ? reacquire_held_locks+0x1f9/0x3e0 [ 34.386022] ? reacquire_held_locks+0x1f9/0x3e0 [ 34.390664] ? check_noncircular+0x20/0x20 [ 34.394876] ? task_will_free_mem+0x252/0xaa0 [ 34.399338] ? check_noncircular+0x20/0x20 [ 34.403548] ? print_irqtrace_events+0x270/0x270 [ 34.408281] ? ___ratelimit+0x30d/0x630 [ 34.412227] ? lock_downgrade+0x980/0x980 [ 34.416356] ? lock_release+0xa40/0xa40 [ 34.420306] ? mark_held_locks+0xaf/0x100 [ 34.424430] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 34.429509] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 34.434497] ? trace_hardirqs_on+0xd/0x10 [ 34.438624] ? ___ratelimit+0x95/0x630 [ 34.442486] ? idr_get_free_cmn+0xfd0/0xfd0 [ 34.446786] ? check_noncircular+0x20/0x20 [ 34.451004] oom_kill_process+0x81b/0x9f0 [ 34.455127] ? oom_badness+0xd1/0x980 [ 34.458896] ? lock_release+0xa40/0xa40 [ 34.462845] ? oom_kill_memcg_member+0x20/0x20 [ 34.467404] ? oom_evaluate_task+0x480/0x480 [ 34.471798] ? out_of_memory+0xe1c/0x1790 [ 34.475919] ? lock_downgrade+0x980/0x980 [ 34.480040] ? lock_release+0xa40/0xa40 [ 34.483986] ? find_next_bit+0xcc/0x100 [ 34.487947] ? oom_evaluate_task+0x284/0x480 [ 34.492328] out_of_memory+0x9d5/0x1790 [ 34.496282] ? oom_killer_disable+0x310/0x310 [ 34.500752] ? mutex_trylock+0x23a/0x2d0 [ 34.504781] ? __alloc_pages_slowpath+0xf63/0x2cc0 [ 34.509681] ? __lock_is_held+0xb6/0x140 [ 34.513712] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 34.519148] __alloc_pages_slowpath+0x1ce4/0x2cc0 [ 34.523972] ? trace_hardirqs_on+0xd/0x10 [ 34.528114] ? warn_alloc+0x2b0/0x2b0 [ 34.531892] ? lock_downgrade+0x980/0x980 [ 34.536453] ? radix_tree_lookup_slot+0x99/0xe0 [ 34.541112] ? find_get_entry+0x53c/0x9e0 [ 34.545253] ? __lock_acquire+0x664/0x3e00 [ 34.549479] ? __lock_is_held+0xb6/0x140 [ 34.553527] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 34.559391] ? __might_sleep+0x95/0x190 [ 34.563343] __alloc_pages_nodemask+0x9fb/0xd80 [ 34.567998] ? __alloc_pages_slowpath+0x2cc0/0x2cc0 [ 34.572994] ? add_to_page_cache_lru+0x510/0x510 [ 34.577732] ? check_noncircular+0x20/0x20 [ 34.581939] ? check_noncircular+0x20/0x20 [ 34.586150] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 34.590900] alloc_pages_current+0xb6/0x1e0 [ 34.595198] __page_cache_alloc+0x334/0x500 [ 34.599489] ? rcu_read_lock_held+0xa9/0xc0 [ 34.603781] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 34.611123] filemap_fault+0xf34/0x1ca0 [ 34.615066] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 34.620234] ? __lock_page_or_retry+0x4f0/0x4f0 [ 34.624882] ? filemap_map_pages+0x942/0x15d0 [ 34.629360] ? find_get_entries_tag+0xeb0/0xeb0 [ 34.633999] ? lock_downgrade+0x980/0x980 [ 34.638559] ? check_noncircular+0x20/0x20 [ 34.642780] ? find_held_lock+0x35/0x1d0 [ 34.646816] ? print_irqtrace_events+0x270/0x270 [ 34.651541] ? print_irqtrace_events+0x270/0x270 [ 34.656265] ? print_irqtrace_events+0x270/0x270 [ 34.660996] ? lock_downgrade+0x980/0x980 [ 34.665143] ? lock_acquire+0x1d5/0x580 [ 34.669086] ? lock_acquire+0x1d5/0x580 [ 34.673032] ? ext4_filemap_fault+0x7a/0xad [ 34.677325] ? __lock_acquire+0x664/0x3e00 [ 34.681533] ? lock_release+0xa40/0xa40 [ 34.685476] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 34.691336] ? rcu_note_context_switch+0x710/0x710 [ 34.696241] ? __might_sleep+0x95/0x190 [ 34.700190] ? down_read+0x96/0x150 [ 34.703785] ? ext4_filemap_fault+0x7a/0xad [ 34.708077] ? __down_interruptible+0x6b0/0x6b0 [ 34.712729] ext4_filemap_fault+0x82/0xad [ 34.716851] __do_fault+0xeb/0x315 [ 34.720359] ? SyS_read+0xef/0x220 [ 34.723870] ? pte_offset_kernel+0xc7/0xc7 [ 34.728075] ? do_raw_spin_trylock+0x190/0x190 [ 34.732640] ? check_noncircular+0x20/0x20 [ 34.736857] __handle_mm_fault+0x1d8f/0x3ce0 [ 34.741242] ? __pmd_alloc+0x4e0/0x4e0 [ 34.745144] ? find_held_lock+0x35/0x1d0 [ 34.749184] ? handle_mm_fault+0x2a0/0x930 [ 34.753392] ? lock_downgrade+0x980/0x980 [ 34.757534] handle_mm_fault+0x38f/0x930 [ 34.761561] ? down_read_trylock+0xdb/0x170 [ 34.765859] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 34.770407] ? vmacache_find+0x5f/0x280 [ 34.774351] ? vmacache_update+0xfe/0x130 [ 34.778572] ? find_vma+0x30/0x150 [ 34.782087] __do_page_fault+0x5c9/0xc90 [ 34.786119] ? vfs_copy_file_range+0x940/0x940 [ 34.790678] ? mm_fault_error+0x2c0/0x2c0 [ 34.794811] ? avc_policy_seqno+0x9/0x20 [ 34.798861] do_page_fault+0xee/0x720 [ 34.802639] ? __do_page_fault+0xc90/0xc90 [ 34.806853] ? fput+0xd2/0x140 [ 34.810022] ? SyS_read+0x184/0x220 [ 34.813621] ? retint_user+0x18/0x18 [ 34.817305] ? page_fault+0x36/0x60 [ 34.820921] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 34.825739] ? page_fault+0x36/0x60 [ 34.829338] page_fault+0x4c/0x60 [ 34.832777] RIP: 0033:0x7f0caac58a30 [ 34.836456] RSP: 002b:00007f0ca8889d68 EFLAGS: 00010206 [ 34.841791] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000ff2 [ 34.849033] RDX: 00007f0caa0be5a0 RSI: 000000000000003c RDI: 00007f0ca9ebc621 [ 34.856273] RBP: 000000000000003c R08: 00007f0ca9ebc621 R09: 0000000000000000 [ 34.863513] R10: 0000000000000011 R11: 0000000000000000 R12: 00000000000003e7 [ 34.870753] R13: 0000000000000000 R14: 00007f0caa0be5a0 R15: 00007f0caa0bf5a0 [ 34.878140] Mem-Info: [ 34.881253] active_anon:6078 inactive_anon:64 isolated_anon:0 [ 34.881253] active_file:21 inactive_file:23 isolated_file:0 [ 34.881253] unevictable:0 dirty:0 writeback:0 unstable:0 [ 34.881253] slab_reclaimable:7299 slab_unreclaimable:83003 [ 34.881253] mapped:2 shmem:70 pagetables:322 bounce:0 [ 34.881253] free:24232 free_pcp:135 free_cma:0 [ 34.938619] Node 0 active_anon:24312kB inactive_anon:256kB active_file:80kB inactive_file:20kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 16384kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 34.967527] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB 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 [ 35.000125] lowmem_reserve[]: 0 2870 6381 6381 [ 35.004762] Node 0 DMA32 free:43492kB min:30328kB low:37908kB high:45488kB active_anon:28kB inactive_anon:4kB active_file:0kB inactive_file:16kB unevictable:0kB writepending:0kB present:3129332kB managed:2942308kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 35.032121] lowmem_reserve[]: 0 0 3510 3510 [ 35.036483] Node 0 Normal free:36800kB min:37084kB low:46352kB high:55620kB active_anon:24284kB inactive_anon:252kB active_file:0kB inactive_file:104kB unevictable:0kB writepending:0kB present:4718592kB managed:3594624kB mlocked:0kB kernel_stack:3040kB pagetables:1252kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 35.064975] lowmem_reserve[]: 0 0 0 0 [ 35.068832] 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 [ 35.082510] Node 0 DMA32: 7*4kB (UME) 7*8kB (UME) 5*16kB (UME) 6*32kB (UME) 4*64kB (UM) 5*128kB (ME) 5*256kB (ME) 4*512kB (ME) 4*1024kB (UME) 3*2048kB (ME) 7*4096kB (M) = 43492kB [ 35.098816] Node 0 Normal: 444*4kB (UME) 337*8kB (UME) 258*16kB (UME) 171*32kB (UM) 85*64kB (UME) 23*128kB (UM) 25*256kB (UM) 16*512kB (UM) 0*1024kB 0*2048kB 0*4096kB = 37048kB [ 35.115919] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 35.124524] 94 total pagecache pages [ 35.128240] 0 pages in swap cache [ 35.131676] Swap cache stats: add 0, delete 0, find 0/0 [ 35.137022] Free swap = 0kB [ 35.140021] Total swap = 0kB [ 35.143021] 1965979 pages RAM [ 35.146109] 0 pages HighMem/MovableOnly [ 35.150071] 327769 pages reserved [ 35.153567] Unreclaimable slab info: [ 35.157310] Name Used Total [ 35.162853] hashtab_node 118KB 119KB [ 35.168731] ebitmap_node 382KB 385KB [ 35.174081] avtab_node 1012KB 1017KB [ 35.179428] TIPC 1KB 7KB [ 35.184774] SCTPv6 2KB 4KB [ 35.190122] DCCPv6 2KB 7KB [ 35.195466] DCCP 2KB 6KB [ 35.200825] fib6_nodes 0KB 4KB [ 35.206170] ip6_dst_cache 5KB 7KB [ 35.211527] RAWv6 9KB 13KB [ 35.216870] UDPv6 12KB 14KB [ 35.222218] TCPv6 2KB 5KB [ 35.227589] sd_ext_cdb 0KB 3KB [ 35.232939] scsi_sense_cache 79KB 136KB [ 35.238289] virtio_scsi_cmd 16KB 16KB [ 35.243646] sgpool-128 8KB 8KB [ 35.248992] sgpool-64 4KB 6KB [ 35.254346] sgpool-32 63KB 63KB [ 35.259690] sgpool-16 30KB 30KB [ 35.265046] sgpool-8 172KB 172KB [ 35.270394] cfq_io_cq 17KB 19KB [ 35.275742] cfq_queue 29KB 30KB [ 35.281088] mqueue_inode_cache 1KB 7KB [ 35.286520] nfs_commit_data 3KB 7KB [ 35.291887] nfs_write_data 34KB 37KB [ 35.297238] jbd2_inode 1KB 3KB [ 35.302584] ext4_system_zone 0KB 3KB [ 35.307936] bio-1 1KB 3KB [ 35.313293] rpc_buffers 17KB 19KB [ 35.318639] rpc_tasks 2KB 3KB [ 35.323984] UNIX 780KB 780KB [ 35.329346] tcp_bind_bucket 0KB 4KB [ 35.334793] ip_fib_trie 0KB 3KB [ 35.340147] ip_fib_alias 0KB 3KB [ 35.345498] ip_dst_cache 3KB 4KB [ 35.350857] RAW 5KB 7KB [ 35.356206] UDP 29KB 39KB [ 35.361567] TCP 7KB 7KB [ 35.366913] hugetlbfs_inode_cache 1KB 7KB [ 35.372604] eventpoll_pwq 10KB 11KB [ 35.377947] eventpoll_epi 18KB 23KB [ 35.383294] inotify_inode_mark 3KB 7KB [ 35.388727] request_queue 54KB 136KB [ 35.394076] blkdev_ioc 23KB 23KB [ 35.399431] bio-0 273KB 273KB [ 35.404786] biovec-(1<<(21-12)) 453KB 453KB [ 35.410314] biovec-64 102KB 102KB [ 35.415669] biovec-16 15KB 15KB [ 35.421034] bio_integrity_payload 0KB 4KB [ 35.426730] khugepaged_mm_slot 0KB 3KB [ 35.432177] uid_cache 0KB 3KB [ 35.437522] dmaengine-unmap-2 0KB 3KB [ 35.442878] audit_buffer 0KB 3KB [ 35.448224] skbuff_fclone_cache 135KB 138KB [ 35.453743] skbuff_head_cache 1620KB 1620KB [ 35.459091] configfs_dir_cache 0KB 4KB [ 35.464523] file_lock_cache 160KB 162KB [ 35.469870] file_lock_ctx 1KB 3KB [ 35.475220] fsnotify_mark_connector 2KB 3KB [ 35.481089] shmem_inode_cache 1045KB 1046KB [ 35.486444] task_delay_info 320KB 320KB [ 35.491792] sigqueue 374KB 374KB [ 35.497224] kernfs_node_cache 2288KB 2295KB [ 35.502567] mnt_cache 15KB 16KB [ 35.507917] filp 8426KB 8842KB [ 35.513262] names_cache 110619KB 110657KB [ 35.518613] avc_node 38KB 39KB [ 35.523960] selinux_file_security 429KB 488KB [ 35.529657] selinux_inode_security 1956KB 1956KB [ 35.535459] key_jar 3KB 7KB [ 35.540829] nsproxy 0KB 3KB [ 35.546193] vm_area_struct 18690KB 18690KB [ 35.551547] mm_struct 4525KB 4531KB [ 35.556892] fs_cache 427KB 432KB [ 35.562593] files_cache 1597KB 1597KB [ 35.567939] signal_cache 2544KB 2544KB [ 35.573285] sighand_cache 231KB 339KB [ 35.578632] task_struct 10853KB 10853KB [ 35.583976] cred_jar 2359KB 2360KB [ 35.589326] anon_vma_chain 7835KB 7835KB [ 35.594668] anon_vma 160KB 338KB [ 35.600027] pid 221KB 228KB [ 35.605371] Acpi-Operand 106KB 170KB [ 35.610716] Acpi-ParseExt 0KB 3KB [ 35.616061] Acpi-Parse 0KB 3KB [ 35.621417] Acpi-State 0KB 7KB [ 35.626765] Acpi-Namespace 19KB 23KB [ 35.632112] numa_policy 0KB 3KB [ 35.637461] debug_objects_cache 531KB 531KB [ 35.643028] trace_event_file 145KB 147KB [ 35.648392] ftrace_event_field 257KB 259KB [ 35.653830] pool_workqueue 24KB 28KB [ 35.659184] page->ptl 3105KB 3107KB [ 35.664541] kmalloc-262144 1032KB 1032KB [ 35.669889] kmalloc-131072 650KB 650KB [ 35.675233] kmalloc-65536 264KB 264KB [ 35.680592] kmalloc-32768 825KB 825KB [ 35.685937] kmalloc-16384 181KB 181KB [ 35.691280] kmalloc-8192 519KB 519KB [ 35.696635] kmalloc-4096 6672KB 6710KB [ 35.701989] kmalloc-2048 4494KB 4494KB [ 35.707337] kmalloc-1024 2858KB 2858KB [ 35.712684] kmalloc-512 2782KB 2782KB [ 35.718859] kmalloc-256 1978KB 2452KB [ 35.724206] kmalloc-128 410KB 507KB [ 35.729550] kmalloc-96 2052KB 2052KB [ 35.734906] kmalloc-64 2468KB 2468KB [ 35.740262] kmalloc-32 2401KB 2401KB [ 35.745753] kmalloc-192 912KB 912KB [ 35.751114] kmem_cache 100KB 105KB [ 35.756481] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 35.765165] [ 1823] 0 1823 5385 182 86016 0 -1000 udevd [ 35.773412] [ 3502] 0 3502 14265 108 126976 0 0 rsyslogd [ 35.781842] [ 3557] 0 3557 4725 50 81920 0 0 cron [ 35.789911] [ 3560] 0 3560 3736 44 69632 0 0 mcstransd [ 35.798418] [ 3586] 0 3586 12490 152 135168 0 -1000 sshd [ 35.806493] [ 3627] 0 3627 3694 40 73728 0 0 getty [ 35.814665] [ 3628] 0 3628 3694 41 77824 0 0 getty [ 35.822834] [ 3629] 0 3629 3694 41 73728 0 0 getty [ 35.830995] [ 3630] 0 3630 3694 40 77824 0 0 getty [ 35.839155] [ 3631] 0 3631 3694 41 77824 0 0 getty [ 35.847315] [ 3632] 0 3632 3694 39 77824 0 0 getty [ 35.855476] [ 3633] 0 3633 3649 40 77824 0 0 getty [ 35.863640] [ 3638] 0 3638 5681 455 86016 0 -1000 udevd [ 35.871809] [ 3639] 0 3639 5681 455 86016 0 -1000 udevd [ 35.879980] [ 3655] 0 3655 17821 198 188416 0 0 sshd [ 35.888056] [ 3657] 0 3657 280 1 32768 0 0 syzkaller610764 [ 35.897091] [ 3658] 0 3658 4375 522 36864 0 0 syzkaller610764 [ 35.906124] [ 3659] 0 3659 4375 522 36864 0 0 syzkaller610764 [ 35.915155] [ 3660] 0 3660 4375 522 36864 0 0 syzkaller610764 [ 35.924356] [ 3661] 0 3661 4375 522 36864 0 0 syzkaller610764 [ 35.933389] [ 3662] 0 3662 4375 522 36864 0 0 syzkaller610764 [ 35.942440] [ 3663] 0 3663 4375 522 36864 0 0 syzkaller610764 [ 35.951484] [ 3664] 0 3664 4375 522 36864 0 0 syzkaller610764 [ 35.960523] [ 3665] 0 3665 4375 522 36864 0 0 syzkaller610764 [ 35.969563] Out of memory: Kill process 3658 (syzkaller610764) score 0 or sacrifice child [ 35.978153] Killed process 3658 (syzkaller610764) total-vm:17500kB, anon-rss:2088kB, file-rss:0kB, shmem-rss:0kB [ 35.990928] oom_reaper: reaped process 3658 (syzkaller610764), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 36.155097] syzkaller610764 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 36.187690] syzkaller610764 cpuset=/ mems_allowed=0 [ 36.192806] CPU: 1 PID: 3663 Comm: syzkaller610764 Not tainted 4.15.0-rc7-mm1+ #56 [ 36.200498] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.209833] Call Trace: [ 36.212407] dump_stack+0x194/0x257 [ 36.216027] ? arch_local_irq_restore+0x53/0x53 [ 36.220685] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 36.225873] dump_header+0x28c/0xe2b [ 36.229588] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 36.234767] ? pagefault_out_of_memory+0x145/0x145 [ 36.240297] ? print_irqtrace_events+0x270/0x270 [ 36.245046] ? avc_has_perm_noaudit+0x37e/0x520 [ 36.249703] ? check_noncircular+0x20/0x20 [ 36.253921] ? check_noncircular+0x20/0x20 [ 36.258140] ? print_irqtrace_events+0x270/0x270 [ 36.262887] ? reacquire_held_locks+0x1f9/0x3e0 [ 36.267536] ? reacquire_held_locks+0x1f9/0x3e0 [ 36.272190] ? check_noncircular+0x20/0x20 [ 36.276413] ? task_will_free_mem+0x252/0xaa0 [ 36.280891] ? check_noncircular+0x20/0x20 [ 36.285118] ? print_irqtrace_events+0x270/0x270 [ 36.289867] ? ___ratelimit+0x30d/0x630 [ 36.293825] ? lock_downgrade+0x980/0x980 [ 36.297960] ? lock_release+0xa40/0xa40 [ 36.301924] ? mark_held_locks+0xaf/0x100 [ 36.306058] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 36.311145] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 36.316146] ? trace_hardirqs_on+0xd/0x10 [ 36.320285] ? ___ratelimit+0x95/0x630 [ 36.324157] ? idr_get_free_cmn+0xfd0/0xfd0 [ 36.328464] ? check_noncircular+0x20/0x20 [ 36.332684] oom_kill_process+0x81b/0x9f0 [ 36.336815] ? oom_badness+0xd1/0x980 [ 36.340599] ? lock_release+0xa40/0xa40 [ 36.344563] ? oom_kill_memcg_member+0x20/0x20 [ 36.349137] ? oom_evaluate_task+0x480/0x480 [ 36.353543] ? out_of_memory+0xe1c/0x1790 [ 36.357672] ? lock_downgrade+0x980/0x980 [ 36.361807] ? lock_release+0xa40/0xa40 [ 36.365762] ? find_next_bit+0xcc/0x100 [ 36.369737] ? oom_evaluate_task+0x284/0x480 [ 36.374132] out_of_memory+0x9d5/0x1790 [ 36.378112] ? oom_killer_disable+0x310/0x310 [ 36.382599] ? mutex_trylock+0x23a/0x2d0 [ 36.386640] ? __alloc_pages_slowpath+0xf63/0x2cc0 [ 36.391554] ? __lock_is_held+0xb6/0x140 [ 36.395596] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 36.401046] __alloc_pages_slowpath+0x1ce4/0x2cc0 [ 36.405934] ? warn_alloc+0x2b0/0x2b0 [ 36.409723] ? lock_release+0xa40/0xa40 [ 36.413692] ? print_irqtrace_events+0x270/0x270 [ 36.418448] ? mutex_spin_on_owner+0x446/0xb50 [ 36.423026] ? __lock_acquire+0x664/0x3e00 [ 36.427247] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 36.433120] ? lock_release+0xa40/0xa40 [ 36.437115] ? __lock_is_held+0xb6/0x140 [ 36.441182] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 36.447056] ? find_held_lock+0x35/0x1d0 [ 36.451119] ? __might_sleep+0x95/0x190 [ 36.455087] __alloc_pages_nodemask+0x9fb/0xd80 [ 36.459750] ? __alloc_pages_slowpath+0x2cc0/0x2cc0 [ 36.464759] ? pcpu_chunk_refresh_hint+0x425/0x570 [ 36.469676] ? print_irqtrace_events+0x270/0x270 [ 36.474429] ? __lock_is_held+0xb6/0x140 [ 36.478483] ? find_next_bit+0xcc/0x100 [ 36.482451] pcpu_populate_chunk+0x1b3/0x880 [ 36.486842] ? find_next_bit+0x7/0x100 [ 36.490726] pcpu_alloc+0x978/0x10e0 [ 36.494444] ? pcpu_free_area+0xa00/0xa00 [ 36.498571] ? __pte_alloc_kernel+0x1bd/0x2a0 [ 36.503051] ? vmap_page_range_noflush+0x523/0x720 [ 36.507996] ? map_vm_area+0x9e/0xd0 [ 36.511699] ? __vmalloc_node_range+0x37a/0x650 [ 36.516364] ? array_map_alloc+0x354/0x990 [ 36.520583] ? __vmalloc_node_flags_caller+0x50/0x60 [ 36.525681] __alloc_percpu_gfp+0x27/0x30 [ 36.529819] array_map_alloc+0x794/0x990 [ 36.533880] SyS_bpf+0x7f8/0x4400 [ 36.537323] ? perf_event_mmap+0x115/0x12a0 [ 36.541636] ? bpf_prog_get+0x20/0x20 [ 36.545424] ? perf_event_fork+0x30/0x30 [ 36.549482] ? __lock_is_held+0xb6/0x140 [ 36.553530] ? check_noncircular+0x20/0x20 [ 36.557747] ? vma_wants_writenotify+0x51/0x3b0 [ 36.562404] ? __handle_mm_fault+0x80e/0x3ce0 [ 36.566878] ? check_noncircular+0x20/0x20 [ 36.571085] ? __pmd_alloc+0x4e0/0x4e0 [ 36.574951] ? vma_link+0xe9/0x170 [ 36.578483] ? find_held_lock+0x35/0x1d0 [ 36.582542] ? handle_mm_fault+0x2a0/0x930 [ 36.586765] ? find_held_lock+0x35/0x1d0 [ 36.590824] ? __do_page_fault+0x5f7/0xc90 [ 36.595044] ? lock_downgrade+0x980/0x980 [ 36.599191] ? handle_mm_fault+0x476/0x930 [ 36.603405] ? down_read_trylock+0xdb/0x170 [ 36.607715] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 36.612272] ? vmacache_find+0x5f/0x280 [ 36.616229] ? vmacache_update+0xfe/0x130 [ 36.620373] ? up_read+0x1a/0x40 [ 36.623726] ? __do_page_fault+0x3d6/0xc90 [ 36.627963] ? mm_fault_error+0x2c0/0x2c0 [ 36.632110] ? do_page_fault+0xee/0x720 [ 36.636068] ? __do_page_fault+0xc90/0xc90 [ 36.640301] ? SyS_mmap_pgoff+0x243/0x5f0 [ 36.644452] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 36.649204] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 36.653940] RIP: 0033:0x440139 [ 36.657113] RSP: 002b:00007fff19894578 EFLAGS: 00000217 ORIG_RAX: 0000000000000141 [ 36.664803] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 0000000000440139 [ 36.672053] RDX: 000000000000002c RSI: 0000000020c47fec RDI: 0000000000000000 [ 36.679302] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 36.686547] R10: 00000000ffffffff R11: 0000000000000217 R12: 00000000004016a0 [ 36.693788] R13: 0000000000401730 R14: 0000000000000000 R15: 0000000000000000 [ 36.701113] Mem-Info: [ 36.704311] active_anon:5561 inactive_anon:64 isolated_anon:0 [ 36.704311] active_file:34 inactive_file:15 isolated_file:0 [ 36.704311] unevictable:0 dirty:0 writeback:0 unstable:0 [ 36.704311] slab_reclaimable:7307 slab_unreclaimable:82645 [ 36.704311] mapped:6 shmem:70 pagetables:312 bounce:0 [ 36.704311] free:24044 free_pcp:7 free_cma:0 [ 36.736284] Node 0 active_anon:22244kB inactive_anon:256kB active_file:136kB inactive_file:60kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:24kB dirty:0kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 14336kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 36.763365] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB 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 [ 36.789552] lowmem_reserve[]: 0 2870 6381 6381 [ 36.794176] Node 0 DMA32 free:43492kB min:30328kB low:37908kB high:45488kB active_anon:28kB inactive_anon:4kB active_file:4kB inactive_file:4kB unevictable:0kB writepending:0kB present:3129332kB managed:2942308kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 36.821448] lowmem_reserve[]: 0 0 3510 3510 [ 36.825802] Node 0 Normal free:37024kB min:37084kB low:46352kB high:55620kB active_anon:22216kB inactive_anon:252kB active_file:68kB inactive_file:308kB unevictable:0kB writepending:0kB present:4718592kB managed:3594624kB mlocked:0kB kernel_stack:3040kB pagetables:1248kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 36.855168] lowmem_reserve[]: 0 0 0 0 [ 36.859045] 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 [ 36.872728] Node 0 DMA32: 7*4kB (UME) 7*8kB (UME) 5*16kB (UME) 6*32kB (UME) 4*64kB (UM) 5*128kB (ME) 5*256kB (ME) 4*512kB (ME) 4*1024kB (UME) 3*2048kB (ME) 7*4096kB (M) = 43492kB [ 36.888961] Node 0 Normal: 412*4kB (UM) 329*8kB (UM) 255*16kB (UME) 167*32kB (UME) 84*64kB (ME) 24*128kB (ME) 26*256kB (UME) 15*512kB (ME) 1*1024kB (E) 0*2048kB 0*4096kB = 37512kB [ 36.905237] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 36.913814] 126 total pagecache pages [ 36.917621] 0 pages in swap cache [ 36.921104] Swap cache stats: add 0, delete 0, find 0/0 [ 36.927928] Free swap = 0kB [ 36.932331] Total swap = 0kB [ 36.935344] 1965979 pages RAM [ 36.938435] 0 pages HighMem/MovableOnly [ 36.942389] 327769 pages reserved [ 36.945843] Unreclaimable slab info: [ 36.949545] Name Used Total [ 36.955063] hashtab_node 118KB 119KB [ 36.960405] ebitmap_node 382KB 385KB [ 36.965755] avtab_node 1012KB 1017KB [ 36.971105] TIPC 1KB 7KB [ 36.976450] SCTPv6 2KB 4KB [ 36.981799] DCCPv6 2KB 7KB [ 36.987142] DCCP 2KB 6KB [ 36.992498] fib6_nodes 0KB 4KB [ 36.997840] ip6_dst_cache 5KB 7KB [ 37.003197] RAWv6 9KB 13KB [ 37.008547] UDPv6 12KB 14KB [ 37.013900] TCPv6 2KB 5KB [ 37.019262] sd_ext_cdb 0KB 3KB [ 37.024614] scsi_sense_cache 101KB 136KB [ 37.029966] virtio_scsi_cmd 16KB 16KB [ 37.035342] sgpool-128 8KB 8KB [ 37.046529] sgpool-64 4KB 6KB [ 37.053749] sgpool-32 94KB 94KB [ 37.064982] sgpool-16 33KB 33KB [ 37.070373] sgpool-8 187KB 187KB [ 37.083120] cfq_io_cq 17KB 19KB [ 37.088500] cfq_queue 29KB 30KB [ 37.093871] mqueue_inode_cache 1KB 7KB [ 37.099331] nfs_commit_data 3KB 7KB [ 37.104712] nfs_write_data 34KB 37KB [ 37.110084] jbd2_inode 1KB 3KB [ 37.115454] ext4_system_zone 0KB 3KB [ 37.120834] bio-1 1KB 3KB [ 37.126216] rpc_buffers 17KB 19KB [ 37.131609] rpc_tasks 2KB 3KB [ 37.136980] UNIX 780KB 780KB [ 37.142359] tcp_bind_bucket 0KB 4KB [ 37.147744] ip_fib_trie 0KB 3KB [ 37.153117] ip_fib_alias 0KB 3KB [ 37.158486] ip_dst_cache 3KB 4KB [ 37.163865] RAW 5KB 7KB [ 37.169237] UDP 29KB 39KB [ 37.174607] TCP 7KB 7KB [ 37.179980] hugetlbfs_inode_cache 1KB 7KB [ 37.185706] eventpoll_pwq 10KB 11KB [ 37.193581] eventpoll_epi 18KB 23KB [ 37.207343] inotify_inode_mark 3KB 7KB [ 37.212794] request_queue 54KB 136KB [ 37.218142] blkdev_ioc 23KB 23KB [ 37.223489] bio-0 307KB 307KB [ 37.228835] biovec-(1<<(21-12)) 453KB 453KB [ 37.234354] biovec-64 141KB 141KB [ 37.239712] biovec-16 22KB 22KB [ 37.245061] bio_integrity_payload 0KB 4KB [ 37.250761] khugepaged_mm_slot 0KB 3KB [ 37.256200] uid_cache 0KB 3KB [ 37.261546] dmaengine-unmap-2 0KB 3KB [ 37.266900] audit_buffer 0KB 3KB [ 37.272244] skbuff_fclone_cache 135KB 138KB [ 37.277761] skbuff_head_cache 1620KB 1620KB [ 37.283124] configfs_dir_cache 0KB 4KB [ 37.288563] file_lock_cache 160KB 162KB [ 37.293912] file_lock_ctx 1KB 3KB [ 37.299254] fsnotify_mark_connector 2KB 3KB [ 37.305120] shmem_inode_cache 1045KB 1046KB [ 37.310466] task_delay_info 320KB 320KB [ 37.322134] sigqueue 374KB 374KB [ 37.327516] kernfs_node_cache 2288KB 2295KB [ 37.333288] mnt_cache 15KB 16KB [ 37.345111] filp 8358KB 8786KB [ 37.350495] names_cache 109990KB 110028KB [ 37.355870] avc_node 38KB 39KB [ 37.361240] selinux_file_security 427KB 488KB [ 37.366960] selinux_inode_security 1956KB 1956KB [ 37.372767] key_jar 3KB 7KB [ 37.378140] nsproxy 0KB 3KB [ 37.383511] vm_area_struct 18690KB 18690KB [ 37.388878] mm_struct 4525KB 4531KB [ 37.394248] fs_cache 427KB 432KB [ 37.399621] files_cache 1597KB 1597KB [ 37.404992] signal_cache 2544KB 2544KB [ 37.410361] sighand_cache 231KB 339KB [ 37.415727] task_struct 10853KB 10853KB [ 37.421096] cred_jar 2359KB 2360KB [ 37.426465] anon_vma_chain 7835KB 7835KB [ 37.431836] anon_vma 160KB 338KB [ 37.437204] pid 221KB 228KB [ 37.442575] Acpi-Operand 106KB 170KB [ 37.447950] Acpi-ParseExt 0KB 3KB [ 37.453322] Acpi-Parse 0KB 3KB [ 37.458698] Acpi-State 0KB 7KB [ 37.464067] Acpi-Namespace 19KB 23KB [ 37.469437] numa_policy 0KB 3KB [ 37.474809] debug_objects_cache 531KB 531KB [ 37.480353] trace_event_file 145KB 147KB [ 37.485725] ftrace_event_field 257KB 259KB [ 37.491185] pool_workqueue 24KB 28KB [ 37.496555] page->ptl 3105KB 3107KB [ 37.501949] kmalloc-262144 1032KB 1032KB [ 37.507318] kmalloc-131072 650KB 650KB [ 37.512691] kmalloc-65536 264KB 264KB [ 37.518061] kmalloc-32768 825KB 825KB [ 37.523438] kmalloc-16384 181KB 181KB [ 37.528807] kmalloc-8192 519KB 519KB [ 37.534203] kmalloc-4096 6400KB 6438KB [ 37.539575] kmalloc-2048 4704KB 4704KB [ 37.544952] kmalloc-1024 2858KB 2858KB [ 37.550325] kmalloc-512 2782KB 2782KB [ 37.555700] kmalloc-256 1961KB 2448KB [ 37.561068] kmalloc-128 410KB 507KB [ 37.566434] kmalloc-96 2060KB 2060KB [ 37.571807] kmalloc-64 2468KB 2468KB [ 37.577193] kmalloc-32 2401KB 2401KB [ 37.582563] kmalloc-192 912KB 912KB [ 37.587932] kmem_cache 100KB 105KB [ 37.593300] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 37.601910] [ 1823] 0 1823 5385 182 86016 0 -1000 udevd [ 37.610068] [ 3502] 0 3502 14265 164 126976 0 0 rsyslogd [ 37.618482] [ 3557] 0 3557 4725 50 81920 0 0 cron [ 37.626553] [ 3560] 0 3560 3736 44 69632 0 0 mcstransd [ 37.635062] [ 3586] 0 3586 12490 152 135168 0 -1000 sshd [ 37.643137] [ 3627] 0 3627 3694 40 73728 0 0 getty [ 37.651304] [ 3628] 0 3628 3694 41 77824 0 0 getty [ 37.659468] [ 3629] 0 3629 3694 41 73728 0 0 getty [ 37.667630] [ 3630] 0 3630 3694 40 77824 0 0 getty [ 37.675795] [ 3631] 0 3631 3694 41 77824 0 0 getty [ 37.683956] [ 3632] 0 3632 3694 39 77824 0 0 getty [ 37.692119] [ 3633] 0 3633 3649 40 77824 0 0 getty [ 37.700280] [ 3638] 0 3638 5681 455 86016 0 -1000 udevd [ 37.708456] [ 3639] 0 3639 5681 455 86016 0 -1000 udevd [ 37.717856] [ 3655] 0 3655 17821 198 188416 0 0 sshd [ 37.725935] [ 3657] 0 3657 280 1 32768 0 0 syzkaller610764 [ 37.735044] [ 3658] 0 3658 4375 0 32768 0 0 syzkaller610764 [ 37.744094] [ 3659] 0 3659 4375 522 36864 0 0 syzkaller610764 [ 37.753132] [ 3660] 0 3660 4375 522 36864 0 0 syzkaller610764 [ 37.762164] [ 3661] 0 3661 4375 522 36864 0 0 syzkaller610764 [ 37.771196] [ 3662] 0 3662 4375 522 36864 0 0 syzkaller610764 [ 37.780233] [ 3663] 0 3663 4375 522 36864 0 0 syzkaller610764 [ 37.789262] [ 3664] 0 3664 4375 522 36864 0 0 syzkaller610764 [ 37.798274] [ 3665] 0 3665 4375 522 36864 0 0 syzkaller610764 [ 37.807295] Out of memory: Kill process 3659 (syzkaller610764) score 0 or sacrifice child [ 37.815667] Killed process 3659 (syzkaller610764) total-vm:17500kB, anon-rss:2088kB, file-rss:0kB, shmem-rss:0kB [ 37.828629] oom_reaper: reaped process 3659 (syzkaller610764), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 37.858466] syzkaller610764 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 37.870831] syzkaller610764 cpuset=/ mems_allowed=0 [ 37.875872] CPU: 0 PID: 3665 Comm: syzkaller610764 Not tainted 4.15.0-rc7-mm1+ #56 [ 37.883551] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.892876] Call Trace: [ 37.895454] dump_stack+0x194/0x257 [ 37.899067] ? arch_local_irq_restore+0x53/0x53 [ 37.903720] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 37.908909] dump_header+0x28c/0xe2b [ 37.912621] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 37.917803] ? pagefault_out_of_memory+0x145/0x145 [ 37.922730] ? print_irqtrace_events+0x270/0x270 [ 37.927481] ? avc_has_perm_noaudit+0x37e/0x520 [ 37.932133] ? check_noncircular+0x20/0x20 [ 37.936352] ? check_noncircular+0x20/0x20 [ 37.940563] ? print_irqtrace_events+0x270/0x270 [ 37.945303] ? reacquire_held_locks+0x1f9/0x3e0 [ 37.949951] ? reacquire_held_locks+0x1f9/0x3e0 [ 37.954605] ? check_noncircular+0x20/0x20 [ 37.958822] ? task_will_free_mem+0x252/0xaa0 [ 37.963295] ? check_noncircular+0x20/0x20 [ 37.967522] ? print_irqtrace_events+0x270/0x270 [ 37.972273] ? ___ratelimit+0x30d/0x630 [ 37.976232] ? lock_downgrade+0x980/0x980 [ 37.980366] ? lock_release+0xa40/0xa40 [ 37.984331] ? mark_held_locks+0xaf/0x100 [ 37.988467] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 37.993556] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 37.998557] ? trace_hardirqs_on+0xd/0x10 [ 38.002691] ? ___ratelimit+0x95/0x630 [ 38.006564] ? idr_get_free_cmn+0xfd0/0xfd0 [ 38.010869] ? check_noncircular+0x20/0x20 [ 38.015100] oom_kill_process+0x81b/0x9f0 [ 38.019230] ? oom_badness+0xd1/0x980 [ 38.023010] ? lock_release+0xa40/0xa40 [ 38.026976] ? oom_kill_memcg_member+0x20/0x20 [ 38.031551] ? oom_evaluate_task+0x480/0x480 [ 38.036214] ? out_of_memory+0xe1c/0x1790 [ 38.040348] ? lock_downgrade+0x980/0x980 [ 38.044482] ? lock_release+0xa40/0xa40 [ 38.048458] ? oom_evaluate_task+0x284/0x480 [ 38.052852] out_of_memory+0x9d5/0x1790 [ 38.056820] ? oom_killer_disable+0x310/0x310 [ 38.061306] ? mutex_trylock+0x23a/0x2d0 [ 38.065349] ? __alloc_pages_slowpath+0xf63/0x2cc0 [ 38.070266] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 38.075696] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 38.081582] __alloc_pages_slowpath+0x1ce4/0x2cc0 [ 38.086428] ? lock_downgrade+0x980/0x980 [ 38.090589] ? warn_alloc+0x2b0/0x2b0 [ 38.094378] ? trace_hardirqs_off+0xd/0x10 [ 38.098590] ? print_irqtrace_events+0x270/0x270 [ 38.103348] ? lock_acquire+0x1d5/0x580 [ 38.107303] ? lock_acquire+0x1d5/0x580 [ 38.111266] ? __lock_acquire+0x664/0x3e00 [ 38.115488] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 38.121353] ? lock_release+0xa40/0xa40 [ 38.125376] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 38.131264] ? __might_sleep+0x95/0x190 [ 38.135229] __alloc_pages_nodemask+0x9fb/0xd80 [ 38.139879] ? lock_release+0xa40/0xa40 [ 38.143845] ? __alloc_pages_slowpath+0x2cc0/0x2cc0 [ 38.148859] ? pcpu_chunk_refresh_hint+0x425/0x570 [ 38.153785] ? print_irqtrace_events+0x270/0x270 [ 38.158535] ? __lock_is_held+0xb6/0x140 [ 38.162589] ? find_next_bit+0xcc/0x100 [ 38.166566] pcpu_populate_chunk+0x1b3/0x880 [ 38.170967] ? find_next_bit+0x7/0x100 [ 38.174857] pcpu_alloc+0x978/0x10e0 [ 38.178578] ? pcpu_free_area+0xa00/0xa00 [ 38.182715] ? vmap_page_range_noflush+0x523/0x720 [ 38.187662] ? map_vm_area+0x9e/0xd0 [ 38.191367] ? __vmalloc_node_range+0x37a/0x650 [ 38.196029] ? array_map_alloc+0x354/0x990 [ 38.200246] ? __vmalloc_node_flags_caller+0x50/0x60 [ 38.205343] __alloc_percpu_gfp+0x27/0x30 [ 38.209477] array_map_alloc+0x794/0x990 [ 38.213539] SyS_bpf+0x7f8/0x4400 [ 38.216975] ? perf_event_mmap+0x115/0x12a0 [ 38.221282] ? bpf_prog_get+0x20/0x20 [ 38.225072] ? perf_event_fork+0x30/0x30 [ 38.229134] ? __lock_is_held+0xb6/0x140 [ 38.233182] ? check_noncircular+0x20/0x20 [ 38.237402] ? vma_wants_writenotify+0x51/0x3b0 [ 38.242060] ? __handle_mm_fault+0x80e/0x3ce0 [ 38.246570] ? check_noncircular+0x20/0x20 [ 38.250783] ? __pmd_alloc+0x4e0/0x4e0 [ 38.254648] ? vma_link+0xe9/0x170 [ 38.258187] ? find_held_lock+0x35/0x1d0 [ 38.262245] ? handle_mm_fault+0x2a0/0x930 [ 38.266475] ? find_held_lock+0x35/0x1d0 [ 38.270534] ? __do_page_fault+0x5f7/0xc90 [ 38.274755] ? lock_downgrade+0x980/0x980 [ 38.278917] ? handle_mm_fault+0x476/0x930 [ 38.283138] ? down_read_trylock+0xdb/0x170 [ 38.287444] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 38.292014] ? vmacache_find+0x5f/0x280 [ 38.296013] ? vmacache_update+0xfe/0x130 [ 38.300153] ? up_read+0x1a/0x40 [ 38.303505] ? __do_page_fault+0x3d6/0xc90 [ 38.307736] ? mm_fault_error+0x2c0/0x2c0 [ 38.311903] ? do_page_fault+0xee/0x720 [ 38.315863] ? __do_page_fault+0xc90/0xc90 [ 38.320094] ? SyS_mmap_pgoff+0x243/0x5f0 [ 38.324244] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 38.328996] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 38.333738] RIP: 0033:0x440139 [ 38.336910] RSP: 002b:00007fff19894578 EFLAGS: 00000217 ORIG_RAX: 0000000000000141 [ 38.344602] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 0000000000440139 [ 38.351851] RDX: 000000000000002c RSI: 0000000020c47fec RDI: 0000000000000000 [ 38.359099] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 38.366351] R10: 00000000ffffffff R11: 0000000000000217 R12: 00000000004016a0 [ 38.373611] R13: 0000000000401730 R14: 0000000000000000 R15: 0000000000000000 [ 38.380939] Mem-Info: [ 38.383369] active_anon:5044 inactive_anon:64 isolated_anon:0 [ 38.383369] active_file:22 inactive_file:12 isolated_file:0 [ 38.383369] unevictable:0 dirty:0 writeback:0 unstable:0 [ 38.383369] slab_reclaimable:7310 slab_unreclaimable:82644 [ 38.383369] mapped:22 shmem:70 pagetables:311 bounce:0 [ 38.383369] free:24112 free_pcp:0 free_cma:0 [ 38.415411] Node 0 active_anon:20176kB inactive_anon:256kB active_file:84kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:88kB dirty:0kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 12288kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 38.442400] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB 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 [ 38.468724] lowmem_reserve[]: 0 2870 6381 6381 [ 38.473338] Node 0 DMA32 free:43492kB min:30328kB low:37908kB high:45488kB active_anon:28kB inactive_anon:4kB active_file:0kB inactive_file:32kB unevictable:0kB writepending:0kB present:3129332kB managed:2942308kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 38.500696] lowmem_reserve[]: 0 0 3510 3510 [ 38.505055] Node 0 Normal free:37048kB min:37084kB low:46352kB high:55620kB active_anon:20148kB inactive_anon:252kB active_file:108kB inactive_file:352kB unevictable:0kB writepending:0kB present:4718592kB managed:3594624kB mlocked:0kB kernel_stack:3040kB pagetables:1244kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 38.533727] lowmem_reserve[]: 0 0 0 0 [ 38.537561] 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 [ 38.551203] Node 0 DMA32: 7*4kB (UME) 7*8kB (UME) 5*16kB (UME) 6*32kB (UME) 4*64kB (UM) 5*128kB (ME) 5*256kB (ME) 4*512kB (ME) 4*1024kB (UME) 3*2048kB (ME) 7*4096kB (M) = 43492kB [ 38.567379] Node 0 Normal: 414*4kB (UME) 329*8kB (UME) 250*16kB (UME) 166*32kB (ME) 84*64kB (ME) 25*128kB (UME) 26*256kB (UME) 15*512kB (ME) 1*1024kB (E) 0*2048kB 0*4096kB = 37536kB [ 38.583810] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 38.592396] 125 total pagecache pages [ 38.596204] 0 pages in swap cache [ 38.599672] Swap cache stats: add 0, delete 0, find 0/0 [ 38.605038] Free swap = 0kB [ 38.608059] Total swap = 0kB [ 38.611078] 1965979 pages RAM [ 38.614187] 0 pages HighMem/MovableOnly [ 38.618161] 327769 pages reserved [ 38.621620] Unreclaimable slab info: [ 38.625341] Name Used Total [ 38.630890] hashtab_node 118KB 119KB [ 38.636259] ebitmap_node 382KB 385KB [ 38.641629] avtab_node 1012KB 1017KB [ 38.647006] TIPC 1KB 7KB [ 38.652403] SCTPv6 2KB 4KB [ 38.657776] DCCPv6 2KB 7KB [ 38.663179] DCCP 2KB 6KB [ 38.675177] fib6_nodes 0KB 4KB [ 38.687144] ip6_dst_cache 5KB 7KB [ 38.692530] RAWv6 9KB 13KB [ 38.697904] UDPv6 12KB 14KB [ 38.703282] TCPv6 2KB 5KB [ 38.708754] sd_ext_cdb 0KB 3KB [ 38.714123] scsi_sense_cache 101KB 136KB [ 38.719587] virtio_scsi_cmd 16KB 16KB [ 38.724962] sgpool-128 8KB 8KB [ 38.730348] sgpool-64 4KB 6KB [ 38.735720] sgpool-32 102KB 102KB [ 38.741091] sgpool-16 37KB 37KB [ 38.746458] sgpool-8 187KB 187KB [ 38.751904] cfq_io_cq 17KB 19KB [ 38.757407] cfq_queue 29KB 30KB [ 38.762920] mqueue_inode_cache 1KB 7KB [ 38.768522] nfs_commit_data 3KB 7KB [ 38.774080] nfs_write_data 34KB 37KB [ 38.779604] jbd2_inode 1KB 3KB [ 38.785150] ext4_system_zone 0KB 3KB [ 38.790662] bio-1 1KB 3KB [ 38.796171] rpc_buffers 17KB 19KB [ 38.801664] rpc_tasks 2KB 3KB [ 38.807168] UNIX 780KB 780KB [ 38.812724] tcp_bind_bucket 0KB 4KB [ 38.818156] ip_fib_trie 0KB 3KB [ 38.823536] ip_fib_alias 0KB 3KB [ 38.829007] ip_dst_cache 3KB 4KB [ 38.834656] RAW 5KB 7KB [ 38.840251] UDP 29KB 39KB [ 38.845680] TCP 7KB 7KB [ 38.851159] hugetlbfs_inode_cache 1KB 7KB [ 38.857078] eventpoll_pwq 10KB 11KB [ 38.862494] eventpoll_epi 18KB 23KB [ 38.867876] inotify_inode_mark 3KB 7KB [ 38.873335] request_queue 42KB 114KB [ 38.878707] blkdev_ioc 23KB 23KB [ 38.884205] bio-0 322KB 322KB [ 38.889718] biovec-(1<<(21-12)) 453KB 453KB [ 38.895273] biovec-64 149KB 149KB [ 38.900659] biovec-16 22KB 22KB [ 38.906033] bio_integrity_payload 0KB 4KB [ 38.911747] khugepaged_mm_slot 0KB 3KB [ 38.917340] uid_cache 0KB 3KB [ 38.922852] dmaengine-unmap-2 0KB 3KB [ 38.928397] audit_buffer 0KB 3KB [ 38.933769] skbuff_fclone_cache 135KB 138KB [ 38.939433] skbuff_head_cache 1619KB 1620KB [ 38.944816] configfs_dir_cache 0KB 4KB [ 38.950289] file_lock_cache 160KB 162KB [ 38.955659] file_lock_ctx 1KB 3KB [ 38.961043] fsnotify_mark_connector 2KB 3KB [ 38.966935] shmem_inode_cache 1045KB 1046KB [ 38.972305] task_delay_info 318KB 320KB [ 38.977665] sigqueue 373KB 374KB [ 38.983111] kernfs_node_cache 2288KB 2295KB [ 38.988482] mnt_cache 15KB 16KB [ 38.993853] filp 8345KB 8767KB [ 38.999226] names_cache 109981KB 110011KB [ 39.004599] avc_node 37KB 39KB [ 39.009965] selinux_file_security 423KB 488KB [ 39.015676] selinux_inode_security 1955KB 1956KB [ 39.021479] key_jar 3KB 7KB [ 39.026836] nsproxy 0KB 3KB [ 39.032199] vm_area_struct 18684KB 18690KB [ 39.037574] mm_struct 4521KB 4531KB [ 39.042927] fs_cache 425KB 432KB [ 39.048292] files_cache 1594KB 1597KB [ 39.053674] signal_cache 2541KB 2544KB [ 39.059187] sighand_cache 219KB 333KB [ 39.064718] task_struct 10841KB 10853KB [ 39.070100] cred_jar 2357KB 2360KB [ 39.075655] anon_vma_chain 7831KB 7835KB [ 39.081165] anon_vma 149KB 338KB [ 39.086548] pid 221KB 228KB [ 39.091929] Acpi-Operand 106KB 170KB [ 39.097301] Acpi-State 0KB 3KB [ 39.102672] Acpi-Namespace 19KB 23KB [ 39.108046] numa_policy 0KB 3KB [ 39.113413] debug_objects_cache 530KB 531KB [ 39.118955] trace_event_file 145KB 147KB [ 39.124325] ftrace_event_field 257KB 259KB [ 39.129772] pool_workqueue 24KB 28KB [ 39.135142] page->ptl 3100KB 3107KB [ 39.140624] kmalloc-262144 1032KB 1032KB [ 39.145981] kmalloc-131072 650KB 650KB [ 39.151434] kmalloc-65536 264KB 264KB [ 39.156803] kmalloc-32768 825KB 825KB [ 39.162156] kmalloc-16384 181KB 181KB [ 39.167517] kmalloc-8192 519KB 519KB [ 39.172898] kmalloc-4096 6392KB 6430KB [ 39.178255] kmalloc-2048 4787KB 4787KB [ 39.183620] kmalloc-1024 2857KB 2858KB [ 39.188996] kmalloc-512 2780KB 2782KB [ 39.194353] kmalloc-256 1944KB 2441KB [ 39.199715] kmalloc-128 408KB 507KB [ 39.205085] kmalloc-96 2064KB 2064KB [ 39.210441] kmalloc-64 2468KB 2468KB [ 39.215809] kmalloc-32 2395KB 2401KB [ 39.221180] kmalloc-192 912KB 912KB [ 39.226562] kmem_cache 100KB 105KB [ 39.231930] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 39.240541] [ 1823] 0 1823 5385 182 86016 0 -1000 udevd [ 39.248674] [ 3502] 0 3502 14265 164 126976 0 0 rsyslogd [ 39.257073] [ 3557] 0 3557 4725 50 81920 0 0 cron [ 39.265252] [ 3560] 0 3560 3736 44 69632 0 0 mcstransd [ 39.273763] [ 3586] 0 3586 12490 152 135168 0 -1000 sshd [ 39.281806] [ 3627] 0 3627 3694 40 73728 0 0 getty [ 39.289935] [ 3628] 0 3628 3694 41 77824 0 0 getty [ 39.298070] [ 3629] 0 3629 3694 41 73728 0 0 getty [ 39.306197] [ 3630] 0 3630 3694 40 77824 0 0 getty [ 39.314324] [ 3631] 0 3631 3694 41 77824 0 0 getty [ 39.322460] [ 3632] 0 3632 3694 39 77824 0 0 getty [ 39.330596] [ 3633] 0 3633 3649 40 77824 0 0 getty [ 39.338724] [ 3638] 0 3638 5681 455 86016 0 -1000 udevd [ 39.346879] [ 3639] 0 3639 5681 455 86016 0 -1000 udevd [ 39.355041] [ 3655] 0 3655 17821 198 188416 0 0 sshd [ 39.363098] [ 3657] 0 3657 280 1 32768 0 0 syzkaller610764 [ 39.372104] [ 3658] 0 3658 4375 0 32768 0 0 syzkaller610764 [ 39.381102] [ 3659] 0 3659 4375 0 32768 0 0 syzkaller610764 [ 39.390098] [ 3660] 0 3660 4375 522 36864 0 0 syzkaller610764 [ 39.399094] [ 3661] 0 3661 4375 522 36864 0 0 syzkaller610764 [ 39.408097] [ 3662] 0 3662 4375 522 36864 0 0 syzkaller610764 [ 39.417093] [ 3663] 0 3663 4375 522 36864 0 0 syzkaller610764 [ 39.426085] [ 3664] 0 3664 4375 522 36864 0 0 syzkaller610764 [ 39.435076] [ 3665] 0 3665 4375 522 36864 0 0 syzkaller610764 [ 39.444073] Out of memory: Kill process 3660 (syzkaller610764) score 0 or sacrifice child [ 39.452438] Killed process 3660 (syzkaller610764) total-vm:17500kB, anon-rss:2088kB, file-rss:0kB, shmem-rss:0kB [ 39.464699] oom_reaper: reaped process 3660 (syzkaller610764), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 39.477825] syzkaller610764 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 39.490199] syzkaller610764 cpuset=/ mems_allowed=0 [ 39.495245] CPU: 1 PID: 3664 Comm: syzkaller610764 Not tainted 4.15.0-rc7-mm1+ #56 [ 39.502929] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.512258] Call Trace: [ 39.514831] dump_stack+0x194/0x257 [ 39.518442] ? arch_local_irq_restore+0x53/0x53 [ 39.523095] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 39.528271] dump_header+0x28c/0xe2b [ 39.531961] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 39.537134] ? pagefault_out_of_memory+0x145/0x145 [ 39.542052] ? print_irqtrace_events+0x270/0x270 [ 39.546784] ? avc_has_perm_noaudit+0x37e/0x520 [ 39.551898] ? check_noncircular+0x20/0x20 [ 39.556104] ? check_noncircular+0x20/0x20 [ 39.560319] ? print_irqtrace_events+0x270/0x270 [ 39.565069] ? reacquire_held_locks+0x1f9/0x3e0 [ 39.569719] ? reacquire_held_locks+0x1f9/0x3e0 [ 39.574374] ? check_noncircular+0x20/0x20 [ 39.578595] ? task_will_free_mem+0x252/0xaa0 [ 39.583073] ? check_noncircular+0x20/0x20 [ 39.587298] ? print_irqtrace_events+0x270/0x270 [ 39.592047] ? ___ratelimit+0x30d/0x630 [ 39.596012] ? lock_downgrade+0x980/0x980 [ 39.600149] ? lock_release+0xa40/0xa40 [ 39.604117] ? mark_held_locks+0xaf/0x100 [ 39.608257] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 39.613348] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 39.618351] ? trace_hardirqs_on+0xd/0x10 [ 39.622489] ? ___ratelimit+0x95/0x630 [ 39.626368] ? idr_get_free_cmn+0xfd0/0xfd0 [ 39.630671] ? check_noncircular+0x20/0x20 [ 39.634884] oom_kill_process+0x81b/0x9f0 [ 39.639007] ? oom_badness+0xd1/0x980 [ 39.642784] ? lock_release+0xa40/0xa40 [ 39.646733] ? oom_kill_memcg_member+0x20/0x20 [ 39.651308] ? oom_evaluate_task+0x480/0x480 [ 39.655719] ? out_of_memory+0xe1c/0x1790 [ 39.659854] ? lock_downgrade+0x980/0x980 [ 39.663997] ? lock_release+0xa40/0xa40 [ 39.667954] ? find_next_bit+0xcc/0x100 [ 39.671935] ? oom_evaluate_task+0x284/0x480 [ 39.676335] out_of_memory+0x9d5/0x1790 [ 39.680310] ? oom_killer_disable+0x310/0x310 [ 39.684787] ? mutex_trylock+0x23a/0x2d0 [ 39.688817] ? __alloc_pages_slowpath+0xf63/0x2cc0 [ 39.693725] ? __lock_is_held+0xb6/0x140 [ 39.697771] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 39.703224] __alloc_pages_slowpath+0x1ce4/0x2cc0 [ 39.708101] ? warn_alloc+0x2b0/0x2b0 [ 39.711886] ? lock_release+0xa40/0xa40 [ 39.715839] ? print_irqtrace_events+0x270/0x270 [ 39.720566] ? find_held_lock+0x35/0x1d0 [ 39.724601] ? __mutex_lock+0x5bd/0x1a80 [ 39.728632] ? __lock_acquire+0x664/0x3e00 [ 39.732831] ? lock_release+0xa40/0xa40 [ 39.736772] ? memset+0x31/0x40 [ 39.740037] ? do_raw_spin_trylock+0x190/0x190 [ 39.744606] ? __lock_is_held+0xb6/0x140 [ 39.748645] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 39.754499] ? find_held_lock+0x35/0x1d0 [ 39.758539] ? __might_sleep+0x95/0x190 [ 39.762488] __alloc_pages_nodemask+0x9fb/0xd80 [ 39.767130] ? __alloc_pages_slowpath+0x2cc0/0x2cc0 [ 39.772123] ? pcpu_chunk_refresh_hint+0x425/0x570 [ 39.777031] ? print_irqtrace_events+0x270/0x270 [ 39.781763] ? __lock_is_held+0xb6/0x140 [ 39.785816] ? find_next_bit+0xcc/0x100 [ 39.789770] pcpu_populate_chunk+0x1b3/0x880 [ 39.794147] ? find_next_bit+0x7/0x100 [ 39.798020] pcpu_alloc+0x978/0x10e0 [ 39.801713] ? pcpu_free_area+0xa00/0xa00 [ 39.805833] ? vmap_page_range_noflush+0x523/0x720 [ 39.810747] ? map_vm_area+0x9e/0xd0 [ 39.814430] ? __vmalloc_node_range+0x37a/0x650 [ 39.819073] ? array_map_alloc+0x354/0x990 [ 39.823273] ? __vmalloc_node_flags_caller+0x50/0x60 [ 39.828359] __alloc_percpu_gfp+0x27/0x30 [ 39.832479] array_map_alloc+0x794/0x990 [ 39.836515] SyS_bpf+0x7f8/0x4400 [ 39.839938] ? perf_event_mmap+0x115/0x12a0 [ 39.844227] ? bpf_prog_get+0x20/0x20 [ 39.848001] ? perf_event_fork+0x30/0x30 [ 39.852044] ? __lock_is_held+0xb6/0x140 [ 39.856080] ? check_noncircular+0x20/0x20 [ 39.860282] ? vma_wants_writenotify+0x51/0x3b0 [ 39.864923] ? __handle_mm_fault+0x80e/0x3ce0 [ 39.869390] ? check_noncircular+0x20/0x20 [ 39.873594] ? __pmd_alloc+0x4e0/0x4e0 [ 39.877446] ? vma_link+0xe9/0x170 [ 39.880958] ? find_held_lock+0x35/0x1d0 [ 39.884996] ? handle_mm_fault+0x2a0/0x930 [ 39.889204] ? find_held_lock+0x35/0x1d0 [ 39.893240] ? __do_page_fault+0x5f7/0xc90 [ 39.897444] ? lock_downgrade+0x980/0x980 [ 39.901566] ? handle_mm_fault+0x476/0x930 [ 39.905766] ? down_read_trylock+0xdb/0x170 [ 39.910057] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 39.914605] ? vmacache_find+0x5f/0x280 [ 39.918543] ? vmacache_update+0xfe/0x130 [ 39.922663] ? up_read+0x1a/0x40 [ 39.925997] ? __do_page_fault+0x3d6/0xc90 [ 39.930208] ? mm_fault_error+0x2c0/0x2c0 [ 39.934330] ? do_page_fault+0xee/0x720 [ 39.938277] ? __do_page_fault+0xc90/0xc90 [ 39.942486] ? SyS_mmap_pgoff+0x243/0x5f0 [ 39.946616] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 39.951351] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 39.956074] RIP: 0033:0x440139 [ 39.959229] RSP: 002b:00007fff19894578 EFLAGS: 00000217 ORIG_RAX: 0000000000000141 [ 39.966901] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 0000000000440139 [ 39.974139] RDX: 000000000000002c RSI: 0000000020c47fec RDI: 0000000000000000 [ 39.981382] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 39.988617] R10: 00000000ffffffff R11: 0000000000000217 R12: 00000000004016a0 [ 39.995852] R13: 0000000000401730 R14: 0000000000000000 R15: 0000000000000000 [ 40.003199] Mem-Info: [ 40.006728] active_anon:4527 inactive_anon:64 isolated_anon:0 [ 40.006728] active_file:17 inactive_file:17 isolated_file:0 [ 40.006728] unevictable:0 dirty:0 writeback:0 unstable:0 [ 40.006728] slab_reclaimable:7321 slab_unreclaimable:82692 [ 40.006728] mapped:2 shmem:70 pagetables:310 bounce:0 [ 40.006728] free:22669 free_pcp:2 free_cma:0 [ 40.038691] Node 0 active_anon:18108kB inactive_anon:256kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 10240kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 40.065583] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB 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 [ 40.091709] lowmem_reserve[]: 0 2870 6381 6381 [ 40.096299] Node 0 DMA32 free:43500kB min:30328kB low:37908kB high:45488kB active_anon:28kB inactive_anon:4kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2942308kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 40.123539] lowmem_reserve[]: 0 0 3510 3510 [ 40.127867] Node 0 Normal free:31268kB min:37084kB low:46352kB high:55620kB active_anon:18080kB inactive_anon:252kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:0kB present:4718592kB managed:3594624kB mlocked:0kB kernel_stack:3040kB pagetables:1240kB bounce:0kB free_pcp:8kB local_pcp:4kB free_cma:0kB [ 40.156381] lowmem_reserve[]: 0 0 0 0 [ 40.161980] 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 [ 40.176550] Node 0 DMA32: 7*4kB (UME) 6*8kB (UME) 6*16kB (UME) 6*32kB (UME) 4*64kB (UM) 5*128kB (ME) 5*256kB (ME) 4*512kB (ME) 4*1024kB (UME) 3*2048kB (ME) 7*4096kB (M) = 43500kB [ 40.193647] Node 0 Normal: 381*4kB (UM) 310*8kB (UM) 231*16kB (UM) 150*32kB (M) 76*64kB (ME) 21*128kB (UM) 20*256kB (M) 12*512kB (M) 0*1024kB 0*2048kB 0*4096kB = 31316kB [ 40.209928] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 40.219139] 104 total pagecache pages [ 40.222967] 0 pages in swap cache [ 40.226499] Swap cache stats: add 0, delete 0, find 0/0 [ 40.231865] Free swap = 0kB [ 40.234889] Total swap = 0kB [ 40.237915] 1965979 pages RAM [ 40.241036] 0 pages HighMem/MovableOnly [ 40.245031] 327769 pages reserved [ 40.248488] Unreclaimable slab info: [ 40.252193] Name Used Total [ 40.257760] hashtab_node 118KB 119KB [ 40.263130] ebitmap_node 382KB 385KB [ 40.268511] avtab_node 1012KB 1017KB [ 40.273889] TIPC 1KB 7KB [ 40.279309] SCTPv6 2KB 4KB [ 40.284684] DCCPv6 2KB 7KB [ 40.290458] DCCP 2KB 6KB [ 40.295850] fib6_nodes 0KB 4KB [ 40.301228] ip6_dst_cache 5KB 7KB [ 40.306604] RAWv6 9KB 13KB [ 40.311983] UDPv6 12KB 14KB [ 40.317362] TCPv6 2KB 5KB [ 40.322748] sd_ext_cdb 0KB 3KB [ 40.328119] scsi_sense_cache 101KB 136KB [ 40.333492] virtio_scsi_cmd 16KB 16KB [ 40.338878] sgpool-128 8KB 8KB [ 40.344250] sgpool-64 4KB 6KB [ 40.349622] sgpool-32 118KB 118KB [ 40.354996] sgpool-16 41KB 41KB [ 40.360369] sgpool-8 195KB 195KB [ 40.365741] cfq_io_cq 16KB 19KB [ 40.371117] cfq_queue 26KB 30KB [ 40.376491] mqueue_inode_cache 1KB 7KB [ 40.381954] nfs_commit_data 3KB 7KB [ 40.387316] nfs_write_data 34KB 37KB [ 40.392683] jbd2_inode 1KB 3KB [ 40.398061] ext4_system_zone 0KB 3KB [ 40.403447] bio-1 1KB 3KB [ 40.408830] rpc_buffers 17KB 19KB [ 40.414205] rpc_tasks 2KB 3KB [ 40.419585] UNIX 780KB 780KB [ 40.425744] tcp_bind_bucket 0KB 4KB [ 40.431130] ip_fib_trie 0KB 3KB [ 40.436511] ip_fib_alias 0KB 3KB [ 40.441884] ip_dst_cache 3KB 4KB [ 40.447267] RAW 5KB 7KB [ 40.452647] UDP 29KB 39KB [ 40.458045] TCP 7KB 7KB [ 40.463421] hugetlbfs_inode_cache 1KB 7KB [ 40.469149] eventpoll_pwq 10KB 11KB [ 40.474523] eventpoll_epi 18KB 23KB [ 40.479897] inotify_inode_mark 3KB 7KB [ 40.485364] request_queue 42KB 114KB [ 40.490739] blkdev_ioc 22KB 23KB [ 40.496111] bio-0 330KB 330KB [ 40.501492] biovec-(1<<(21-12)) 453KB 453KB [ 40.507041] biovec-64 157KB 157KB [ 40.512421] biovec-16 22KB 22KB [ 40.517826] bio_integrity_payload 0KB 4KB [ 40.523560] khugepaged_mm_slot 0KB 3KB [ 40.529042] uid_cache 0KB 3KB [ 40.534417] dmaengine-unmap-2 0KB 3KB [ 40.539781] audit_buffer 0KB 3KB [ 40.545152] skbuff_fclone_cache 135KB 138KB [ 40.550688] skbuff_head_cache 1619KB 1620KB [ 40.556740] configfs_dir_cache 0KB 4KB [ 40.563099] file_lock_cache 160KB 162KB [ 40.568480] file_lock_ctx 1KB 3KB [ 40.573841] fsnotify_mark_connector 2KB 3KB [ 40.579728] shmem_inode_cache 1045KB 1046KB [ 40.585098] task_delay_info 318KB 320KB [ 40.591266] sigqueue 368KB 374KB [ 40.596637] kernfs_node_cache 2288KB 2295KB [ 40.601992] mnt_cache 15KB 16KB [ 40.607361] filp 8331KB 8760KB [ 40.612727] names_cache 109973KB 110011KB [ 40.618098] avc_node 37KB 39KB [ 40.623480] selinux_file_security 421KB 488KB [ 40.629198] selinux_inode_security 1954KB 1956KB [ 40.634990] key_jar 3KB 7KB [ 40.640363] nsproxy 0KB 3KB [ 40.645745] vm_area_struct 18678KB 18690KB [ 40.651107] mm_struct 4520KB 4531KB [ 40.656470] fs_cache 425KB 432KB [ 40.661842] files_cache 1593KB 1597KB [ 40.667213] signal_cache 2540KB 2544KB [ 40.672585] sighand_cache 217KB 326KB [ 40.677942] task_struct 10835KB 10853KB [ 40.683306] cred_jar 2356KB 2360KB [ 40.688675] anon_vma_chain 7828KB 7835KB [ 40.694043] anon_vma 138KB 338KB [ 40.699399] pid 221KB 228KB [ 40.704764] Acpi-Operand 106KB 170KB [ 40.710136] Acpi-State 0KB 3KB [ 40.715494] Acpi-Namespace 19KB 23KB [ 40.720863] numa_policy 0KB 3KB [ 40.726236] debug_objects_cache 530KB 531KB [ 40.731771] trace_event_file 145KB 147KB [ 40.737208] ftrace_event_field 257KB 259KB [ 40.742666] pool_workqueue 24KB 28KB [ 40.748036] page->ptl 3098KB 3107KB [ 40.753463] kmalloc-262144 1032KB 1032KB [ 40.758835] kmalloc-131072 650KB 650KB [ 40.764207] kmalloc-65536 264KB 264KB [ 40.769567] kmalloc-32768 825KB 825KB [ 40.774934] kmalloc-16384 181KB 181KB [ 40.780291] kmalloc-8192 519KB 519KB [ 40.785659] kmalloc-4096 6375KB 6413KB [ 40.791033] kmalloc-2048 4800KB 4800KB [ 40.796420] kmalloc-1024 2856KB 2858KB [ 40.801776] kmalloc-512 2776KB 2782KB [ 40.807138] kmalloc-256 1940KB 2441KB [ 40.812509] kmalloc-128 407KB 507KB [ 40.817883] kmalloc-96 2068KB 2068KB [ 40.823252] kmalloc-64 2472KB 2472KB [ 40.828606] kmalloc-32 2395KB 2401KB [ 40.833970] kmalloc-192 912KB 912KB [ 40.839323] kmem_cache 100KB 105KB [ 40.844686] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 40.853288] [ 1823] 0 1823 5385 182 86016 0 -1000 udevd [ 40.861536] [ 3502] 0 3502 14265 164 126976 0 0 rsyslogd [ 40.870047] [ 3557] 0 3557 4725 52 81920 0 0 cron [ 40.878110] [ 3560] 0 3560 3736 44 69632 0 0 mcstransd [ 40.886610] [ 3586] 0 3586 12490 152 135168 0 -1000 sshd [ 40.894664] [ 3627] 0 3627 3694 40 73728 0 0 getty [ 40.902819] [ 3628] 0 3628 3694 41 77824 0 0 getty [ 40.910983] [ 3629] 0 3629 3694 41 73728 0 0 getty [ 40.919129] [ 3630] 0 3630 3694 40 77824 0 0 getty [ 40.927311] [ 3631] 0 3631 3694 41 77824 0 0 getty [ 40.935480] [ 3632] 0 3632 3694 39 77824 0 0 getty [ 40.943631] [ 3633] 0 3633 3649 40 77824 0 0 getty [ 40.951796] [ 3638] 0 3638 5681 455 86016 0 -1000 udevd [ 40.959966] [ 3639] 0 3639 5681 455 86016 0 -1000 udevd [ 40.968113] [ 3655] 0 3655 17821 198 188416 0 0 sshd [ 40.976181] [ 3657] 0 3657 280 1 32768 0 0 syzkaller610764 [ 40.985217] [ 3658] 0 3658 4375 0 32768 0 0 syzkaller610764 [ 40.994252] [ 3659] 0 3659 4375 0 32768 0 0 syzkaller610764 [ 41.003287] [ 3660] 0 3660 4375 0 32768 0 0 syzkaller610764 [ 41.012318] [ 3661] 0 3661 4375 522 36864 0 0 syzkaller610764 [ 41.021521] [ 3662] 0 3662 4375 522 36864 0 0 syzkaller610764 [ 41.030552] [ 3663] 0 3663 4375 522 36864 0 0 syzkaller610764 [ 41.039585] [ 3664] 0 3664 4375 522 36864 0 0 syzkaller610764 [ 41.048615] [ 3665] 0 3665 4375 522 36864 0 0 syzkaller610764 [ 41.057620] Out of memory: Kill process 3661 (syzkaller610764) score 0 or sacrifice child [ 41.066068] Killed process 3661 (syzkaller610764) total-vm:17500kB, anon-rss:2088kB, file-rss:0kB, shmem-rss:0kB [ 41.078743] oom_reaper: reaped process 3661 (syzkaller610764), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 41.090155] cron invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=0 [ 41.101182] cron cpuset=/ mems_allowed=0 [ 41.105273] CPU: 0 PID: 3557 Comm: cron Not tainted 4.15.0-rc7-mm1+ #56 [ 41.111999] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.121323] Call Trace: [ 41.123889] dump_stack+0x194/0x257 [ 41.127492] ? arch_local_irq_restore+0x53/0x53 [ 41.132143] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 41.137331] dump_header+0x28c/0xe2b [ 41.141061] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 41.146255] ? pagefault_out_of_memory+0x145/0x145 [ 41.151177] ? print_irqtrace_events+0x270/0x270 [ 41.155929] ? avc_has_perm_noaudit+0x37e/0x520 [ 41.160577] ? check_noncircular+0x20/0x20 [ 41.164783] ? check_noncircular+0x20/0x20 [ 41.168990] ? print_irqtrace_events+0x270/0x270 [ 41.173733] ? reacquire_held_locks+0x1f9/0x3e0 [ 41.178556] ? reacquire_held_locks+0x1f9/0x3e0 [ 41.183209] ? check_noncircular+0x20/0x20 [ 41.187428] ? task_will_free_mem+0x252/0xaa0 [ 41.191902] ? check_noncircular+0x20/0x20 [ 41.196133] ? print_irqtrace_events+0x270/0x270 [ 41.200882] ? ___ratelimit+0x30d/0x630 [ 41.204839] ? lock_downgrade+0x980/0x980 [ 41.208966] ? lock_release+0xa40/0xa40 [ 41.212935] ? mark_held_locks+0xaf/0x100 [ 41.217070] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 41.222160] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 41.227161] ? trace_hardirqs_on+0xd/0x10 [ 41.231301] ? ___ratelimit+0x95/0x630 [ 41.235174] ? idr_get_free_cmn+0xfd0/0xfd0 [ 41.239499] ? check_noncircular+0x20/0x20 [ 41.243734] oom_kill_process+0x81b/0x9f0 [ 41.247859] ? oom_badness+0xd1/0x980 [ 41.251647] ? lock_release+0xa40/0xa40 [ 41.255614] ? oom_kill_memcg_member+0x20/0x20 [ 41.260207] ? oom_evaluate_task+0x480/0x480 [ 41.264613] ? out_of_memory+0xe1c/0x1790 [ 41.268740] ? lock_downgrade+0x980/0x980 [ 41.272872] ? lock_release+0xa40/0xa40 [ 41.276825] ? find_next_bit+0xcc/0x100 [ 41.280785] ? oom_evaluate_task+0x284/0x480 [ 41.285180] out_of_memory+0x9d5/0x1790 [ 41.289152] ? oom_killer_disable+0x310/0x310 [ 41.293641] ? mutex_trylock+0x23a/0x2d0 [ 41.297682] ? __alloc_pages_slowpath+0xf63/0x2cc0 [ 41.302594] ? __lock_is_held+0xb6/0x140 [ 41.306639] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 41.312092] __alloc_pages_slowpath+0x1ce4/0x2cc0 [ 41.316928] ? trace_hardirqs_on+0xd/0x10 [ 41.321088] ? warn_alloc+0x2b0/0x2b0 [ 41.324873] ? lock_downgrade+0x980/0x980 [ 41.329017] ? radix_tree_lookup_slot+0x99/0xe0 [ 41.333707] ? find_get_entry+0x53c/0x9e0 [ 41.337878] ? __lock_acquire+0x664/0x3e00 [ 41.342127] ? __lock_is_held+0xb6/0x140 [ 41.346199] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 41.352087] ? __might_sleep+0x95/0x190 [ 41.356057] __alloc_pages_nodemask+0x9fb/0xd80 [ 41.360723] ? __alloc_pages_slowpath+0x2cc0/0x2cc0 [ 41.365723] ? add_to_page_cache_lru+0x510/0x510 [ 41.370473] ? check_noncircular+0x20/0x20 [ 41.374686] ? check_noncircular+0x20/0x20 [ 41.378910] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 41.383660] alloc_pages_current+0xb6/0x1e0 [ 41.387971] __page_cache_alloc+0x334/0x500 [ 41.392280] ? rcu_read_lock_held+0xa9/0xc0 [ 41.396592] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 41.403956] filemap_fault+0xf34/0x1ca0 [ 41.407913] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 41.413103] ? __lock_page_or_retry+0x4f0/0x4f0 [ 41.417773] ? filemap_map_pages+0x942/0x15d0 [ 41.422252] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 41.427451] ? find_get_entries_tag+0xeb0/0xeb0 [ 41.432196] ? __lock_acquire+0x664/0x3e00 [ 41.436429] ? check_noncircular+0x20/0x20 [ 41.440640] ? __lock_acquire+0x664/0x3e00 [ 41.444862] ? print_irqtrace_events+0x270/0x270 [ 41.449600] ? print_irqtrace_events+0x270/0x270 [ 41.454341] ? print_irqtrace_events+0x270/0x270 [ 41.459087] ? print_irqtrace_events+0x270/0x270 [ 41.463834] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 41.469015] ? lock_acquire+0x1d5/0x580 [ 41.472967] ? lock_acquire+0x1d5/0x580 [ 41.476919] ? ext4_filemap_fault+0x7a/0xad [ 41.481228] ? __lock_acquire+0x664/0x3e00 [ 41.485452] ? lock_release+0xa40/0xa40 [ 41.489412] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 41.495379] ? rcu_note_context_switch+0x710/0x710 [ 41.500305] ? __might_sleep+0x95/0x190 [ 41.504277] ? down_read+0x96/0x150 [ 41.507886] ? ext4_filemap_fault+0x7a/0xad [ 41.512194] ? __down_interruptible+0x6b0/0x6b0 [ 41.516865] ext4_filemap_fault+0x82/0xad [ 41.520995] __do_fault+0xeb/0x315 [ 41.524528] ? pte_offset_kernel+0xc7/0xc7 [ 41.528753] ? do_raw_spin_trylock+0x190/0x190 [ 41.533335] ? check_noncircular+0x20/0x20 [ 41.537567] __handle_mm_fault+0x1d8f/0x3ce0 [ 41.541961] ? __pmd_alloc+0x4e0/0x4e0 [ 41.545830] ? do_raw_spin_trylock+0x190/0x190 [ 41.550501] ? find_held_lock+0x35/0x1d0 [ 41.554562] ? handle_mm_fault+0x2a0/0x930 [ 41.558784] ? lock_downgrade+0x980/0x980 [ 41.562962] handle_mm_fault+0x38f/0x930 [ 41.567096] ? down_read_trylock+0xdb/0x170 [ 41.571414] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 41.575971] ? vmacache_find+0x5f/0x280 [ 41.579921] ? find_vma+0x30/0x150 [ 41.583458] __do_page_fault+0x5c9/0xc90 [ 41.587522] ? mm_fault_error+0x2c0/0x2c0 [ 41.591672] do_page_fault+0xee/0x720 [ 41.595454] ? nanosleep_copyout+0x100/0x100 [ 41.599844] ? __do_page_fault+0xc90/0xc90 [ 41.604063] ? SYSC_newstat+0x99/0xf0 [ 41.607848] ? cp_new_stat+0xa40/0xa40 [ 41.611720] ? retint_user+0x18/0x18 [ 41.615413] ? page_fault+0x36/0x60 [ 41.619026] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 41.623854] ? page_fault+0x36/0x60 [ 41.627466] page_fault+0x4c/0x60 [ 41.630899] RIP: 0033:0x403fc6 [ 41.634069] RSP: 002b:00007ffeb0182900 EFLAGS: 00010207 [ 41.639420] RAX: 0000000000000000 RBX: 00000000018191fa RCX: 00007fe3818a0c65 [ 41.646666] RDX: 00007ffeb01829d0 RSI: 00007ffeb01829d0 RDI: 0000000000408244 [ 41.653905] RBP: 00007ffeb0184cd0 R08: 0000000000000000 R09: 00000000000007e2 [ 41.661149] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000004033c4 [ 41.668407] R13: 00007ffeb0184df0 R14: 0000000000000000 R15: 0000000000000000 [ 41.675748] Mem-Info: [ 41.678179] active_anon:4010 inactive_anon:64 isolated_anon:0 [ 41.678179] active_file:31 inactive_file:0 isolated_file:0 [ 41.678179] unevictable:0 dirty:0 writeback:0 unstable:0 [ 41.678179] slab_reclaimable:7321 slab_unreclaimable:82680 [ 41.678179] mapped:2 shmem:70 pagetables:309 bounce:0 [ 41.678179] free:23193 free_pcp:6 free_cma:0 [ 41.710054] Node 0 active_anon:16040kB inactive_anon:256kB active_file:120kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 8192kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 41.737971] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB 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 [ 41.764635] lowmem_reserve[]: 0 2870 6381 6381 [ 41.769289] Node 0 DMA32 free:43500kB min:30328kB low:37908kB high:45488kB active_anon:28kB inactive_anon:4kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2942308kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 41.796570] lowmem_reserve[]: 0 0 3510 3510 [ 41.800916] Node 0 Normal free:33468kB min:37084kB low:46352kB high:55620kB active_anon:16012kB inactive_anon:252kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:0kB present:4718592kB managed:3594624kB mlocked:0kB kernel_stack:3040kB pagetables:1236kB bounce:0kB free_pcp:76kB local_pcp:76kB free_cma:0kB [ 41.829569] lowmem_reserve[]: 0 0 0 0 [ 41.833406] 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 [ 41.847047] Node 0 DMA32: 7*4kB (UME) 6*8kB (UME) 6*16kB (UME) 6*32kB (UME) 4*64kB (UM) 5*128kB (ME) 5*256kB (ME) 4*512kB (ME) 4*1024kB (UME) 3*2048kB (ME) 7*4096kB (M) = 43500kB [ 41.863226] Node 0 Normal: 381*4kB (UM) 324*8kB (UM) 231*16kB (UM) 150*32kB (M) 76*64kB (ME) 21*128kB (UM) 20*256kB (M) 12*512kB (M) 0*1024kB 1*2048kB (M) 0*4096kB = 33476kB [ 41.878958] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 41.887570] 104 total pagecache pages [ 41.891387] 0 pages in swap cache [ 41.894837] Swap cache stats: add 0, delete 0, find 0/0 [ 41.900206] Free swap = 0kB [ 41.903216] Total swap = 0kB [ 41.906235] 1965979 pages RAM [ 41.909331] 0 pages HighMem/MovableOnly [ 41.913306] 327769 pages reserved [ 41.916751] Unreclaimable slab info: [ 41.920468] Name Used Total [ 41.926030] hashtab_node 118KB 119KB [ 41.931409] ebitmap_node 382KB 385KB [ 41.936771] avtab_node 1012KB 1017KB [ 41.942141] TIPC 1KB 7KB [ 41.947501] SCTPv6 2KB 4KB [ 41.953301] DCCPv6 2KB 7KB [ 41.958670] DCCP 2KB 6KB [ 41.964067] fib6_nodes 0KB 4KB [ 41.969426] ip6_dst_cache 7KB 7KB [ 41.974779] RAWv6 9KB 13KB [ 41.980131] UDPv6 12KB 14KB [ 41.985487] TCPv6 2KB 5KB [ 41.991056] sd_ext_cdb 0KB 3KB [ 41.996419] scsi_sense_cache 98KB 136KB [ 42.001773] virtio_scsi_cmd 16KB 16KB [ 42.007129] sgpool-128 8KB 8KB [ 42.012483] sgpool-64 4KB 6KB [ 42.017834] sgpool-32 117KB 118KB [ 42.023277] sgpool-16 40KB 41KB [ 42.028651] sgpool-8 194KB 195KB [ 42.034034] cfq_io_cq 15KB 19KB [ 42.039392] cfq_queue 25KB 30KB [ 42.045094] mqueue_inode_cache 1KB 7KB [ 42.050537] nfs_commit_data 3KB 7KB [ 42.055889] nfs_write_data 34KB 37KB [ 42.061241] jbd2_inode 1KB 3KB [ 42.066591] ext4_system_zone 0KB 3KB [ 42.071947] bio-1 1KB 3KB [ 42.077318] rpc_buffers 17KB 19KB [ 42.082668] rpc_tasks 2KB 3KB [ 42.088047] UNIX 780KB 780KB [ 42.093488] tcp_bind_bucket 0KB 4KB [ 42.098842] ip_fib_trie 0KB 3KB [ 42.104215] ip_fib_alias 0KB 3KB [ 42.109587] ip_dst_cache 3KB 4KB [ 42.114948] RAW 5KB 7KB [ 42.120316] UDP 29KB 39KB [ 42.125678] TCP 7KB 7KB [ 42.131048] hugetlbfs_inode_cache 1KB 7KB [ 42.136758] eventpoll_pwq 10KB 11KB [ 42.142126] eventpoll_epi 18KB 23KB [ 42.147502] inotify_inode_mark 3KB 7KB [ 42.152946] request_queue 37KB 91KB [ 42.158335] blkdev_ioc 21KB 23KB [ 42.163696] bio-0 328KB 330KB [ 42.169063] biovec-(1<<(21-12)) 453KB 453KB [ 42.174599] biovec-64 157KB 157KB [ 42.179954] biovec-16 20KB 22KB [ 42.185325] bio_integrity_payload 0KB 4KB [ 42.191045] khugepaged_mm_slot 0KB 3KB [ 42.196512] uid_cache 0KB 3KB [ 42.201877] dmaengine-unmap-2 0KB 3KB [ 42.207242] audit_buffer 0KB 3KB [ 42.212611] skbuff_fclone_cache 135KB 138KB [ 42.218162] skbuff_head_cache 1623KB 1623KB [ 42.223536] configfs_dir_cache 0KB 4KB [ 42.228982] file_lock_cache 160KB 162KB [ 42.234351] file_lock_ctx 1KB 3KB [ 42.239725] fsnotify_mark_connector 2KB 3KB [ 42.245618] shmem_inode_cache 1045KB 1046KB [ 42.250986] task_delay_info 318KB 320KB [ 42.256359] sigqueue 368KB 374KB [ 42.261736] kernfs_node_cache 2288KB 2295KB [ 42.267122] mnt_cache 15KB 16KB [ 42.272500] filp 8296KB 8737KB [ 42.277866] names_cache 109964KB 109994KB [ 42.283617] avc_node 37KB 39KB [ 42.288993] selinux_file_security 417KB 488KB [ 42.294704] selinux_inode_security 1954KB 1956KB [ 42.300505] key_jar 3KB 7KB [ 42.305879] nsproxy 0KB 3KB [ 42.311258] vm_area_struct 18664KB 18678KB [ 42.316633] mm_struct 4518KB 4531KB [ 42.322032] fs_cache 425KB 432KB [ 42.327408] files_cache 1592KB 1597KB [ 42.332769] signal_cache 2538KB 2544KB [ 42.338137] sighand_cache 215KB 326KB [ 42.343514] task_struct 10835KB 10841KB [ 42.348917] cred_jar 2355KB 2360KB [ 42.354294] anon_vma_chain 7826KB 7835KB [ 42.359670] anon_vma 131KB 338KB [ 42.365043] pid 221KB 228KB [ 42.370417] Acpi-Operand 106KB 170KB [ 42.375793] Acpi-Namespace 19KB 23KB [ 42.381162] numa_policy 0KB 3KB [ 42.386534] debug_objects_cache 530KB 531KB [ 42.392085] trace_event_file 145KB 147KB [ 42.397462] ftrace_event_field 257KB 259KB [ 42.402924] pool_workqueue 24KB 28KB [ 42.408305] page->ptl 3098KB 3107KB [ 42.413727] kmalloc-262144 1032KB 1032KB [ 42.419103] kmalloc-131072 650KB 650KB [ 42.424478] kmalloc-65536 264KB 264KB [ 42.429836] kmalloc-32768 825KB 825KB [ 42.435202] kmalloc-16384 181KB 181KB [ 42.440575] kmalloc-8192 519KB 519KB [ 42.445926] kmalloc-4096 6366KB 6396KB [ 42.451293] kmalloc-2048 4800KB 4800KB [ 42.456653] kmalloc-1024 2856KB 2858KB [ 42.462041] kmalloc-512 2775KB 2782KB [ 42.467419] kmalloc-256 1923KB 2430KB [ 42.472776] kmalloc-128 406KB 507KB [ 42.478153] kmalloc-96 2066KB 2068KB [ 42.483530] kmalloc-64 2471KB 2472KB [ 42.488885] kmalloc-32 2393KB 2401KB [ 42.494261] kmalloc-192 910KB 912KB [ 42.499620] kmem_cache 100KB 105KB [ 42.504983] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 42.513598] [ 1823] 0 1823 5385 182 86016 0 -1000 udevd [ 42.521749] [ 3502] 0 3502 14265 164 126976 0 0 rsyslogd [ 42.530168] [ 3557] 0 3557 4725 52 81920 0 0 cron [ 42.538253] [ 3560] 0 3560 3736 44 69632 0 0 mcstransd [ 42.546781] [ 3586] 0 3586 12490 152 135168 0 -1000 sshd [ 42.554876] [ 3627] 0 3627 3694 40 73728 0 0 getty [ 42.563060] [ 3628] 0 3628 3694 41 77824 0 0 getty [ 42.571230] [ 3629] 0 3629 3694 41 73728 0 0 getty [ 42.579396] [ 3630] 0 3630 3694 40 77824 0 0 getty [ 42.587561] [ 3631] 0 3631 3694 41 77824 0 0 getty [ 42.595730] [ 3632] 0 3632 3694 39 77824 0 0 getty [ 42.603879] [ 3633] 0 3633 3649 40 77824 0 0 getty [ 42.612047] [ 3638] 0 3638 5681 455 86016 0 -1000 udevd [ 42.620214] [ 3639] 0 3639 5681 455 86016 0 -1000 udevd [ 42.628383] [ 3655] 0 3655 17821 198 188416 0 0 sshd [ 42.636463] [ 3657] 0 3657 280 1 32768 0 0 syzkaller610764 [ 42.645499] [ 3658] 0 3658 4375 0 32768 0 0 syzkaller610764 [ 42.654538] [ 3659] 0 3659 4375 0 32768 0 0 syzkaller610764 [ 42.663551] [ 3660] 0 3660 4375 0 32768 0 0 syzkaller610764 [ 42.672579] [ 3661] 0 3661 4375 0 32768 0 0 syzkaller610764 [ 42.681591] [ 3662] 0 3662 4375 522 36864 0 0 syzkaller610764 [ 42.690615] [ 3663] 0 3663 4375 522 36864 0 0 syzkaller610764 [ 42.699648] [ 3664] 0 3664 4375 522 36864 0 0 syzkaller610764 [ 42.708697] [ 3665] 0 3665 4375 522 36864 0 0 syzkaller610764 [ 42.717715] Out of memory: Kill process 3662 (syzkaller610764) score 0 or sacrifice child [ 42.726154] Killed process 3662 (syzkaller610764) total-vm:17500kB, anon-rss:2088kB, file-rss:0kB, shmem-rss:0kB [ 42.738683] oom_reaper: reaped process 3662 (syzkaller610764), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 42.750073] udevd invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=-1000 [ 42.762097] udevd cpuset=/ mems_allowed=0 [ 42.766282] CPU: 1 PID: 1823 Comm: udevd Not tainted 4.15.0-rc7-mm1+ #56 [ 42.773103] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.782440] Call Trace: [ 42.785015] dump_stack+0x194/0x257 [ 42.788635] ? arch_local_irq_restore+0x53/0x53 [ 42.793300] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 42.798505] dump_header+0x28c/0xe2b [ 42.802217] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 42.807403] ? pagefault_out_of_memory+0x145/0x145 [ 42.812325] ? print_irqtrace_events+0x270/0x270 [ 42.817079] ? avc_has_perm_noaudit+0x37e/0x520 [ 42.821737] ? check_noncircular+0x20/0x20 [ 42.825952] ? check_noncircular+0x20/0x20 [ 42.830168] ? print_irqtrace_events+0x270/0x270 [ 42.834904] ? reacquire_held_locks+0x1f9/0x3e0 [ 42.839556] ? reacquire_held_locks+0x1f9/0x3e0 [ 42.844212] ? check_noncircular+0x20/0x20 [ 42.848432] ? task_will_free_mem+0x252/0xaa0 [ 42.852911] ? check_noncircular+0x20/0x20 [ 42.857135] ? print_irqtrace_events+0x270/0x270 [ 42.861889] ? ___ratelimit+0x30d/0x630 [ 42.865847] ? lock_downgrade+0x980/0x980 [ 42.869983] ? lock_release+0xa40/0xa40 [ 42.873950] ? mark_held_locks+0xaf/0x100 [ 42.878084] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 42.883176] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 42.888171] ? trace_hardirqs_on+0xd/0x10 [ 42.892301] ? ___ratelimit+0x95/0x630 [ 42.896173] ? idr_get_free_cmn+0xfd0/0xfd0 [ 42.900470] ? check_noncircular+0x20/0x20 [ 42.904702] oom_kill_process+0x81b/0x9f0 [ 42.908828] ? oom_badness+0xd1/0x980 [ 42.912596] ? lock_release+0xa40/0xa40 [ 42.916553] ? oom_kill_memcg_member+0x20/0x20 [ 42.921116] ? oom_evaluate_task+0x480/0x480 [ 42.925515] ? out_of_memory+0xe1c/0x1790 [ 42.929646] ? lock_downgrade+0x980/0x980 [ 42.933768] ? lock_release+0xa40/0xa40 [ 42.937717] ? find_next_bit+0xcc/0x100 [ 42.941695] ? oom_evaluate_task+0x284/0x480 [ 42.946091] out_of_memory+0x9d5/0x1790 [ 42.950064] ? oom_killer_disable+0x310/0x310 [ 42.954546] ? mutex_trylock+0x23a/0x2d0 [ 42.958581] ? __alloc_pages_slowpath+0xf63/0x2cc0 [ 42.963487] ? __lock_is_held+0xb6/0x140 [ 42.967525] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 42.972962] __alloc_pages_slowpath+0x1ce4/0x2cc0 [ 42.977784] ? trace_hardirqs_on+0xd/0x10 [ 42.981922] ? warn_alloc+0x2b0/0x2b0 [ 42.985705] ? lock_downgrade+0x980/0x980 [ 42.989839] ? radix_tree_lookup_slot+0x99/0xe0 [ 42.994506] ? find_get_entry+0x53c/0x9e0 [ 42.998679] ? __lock_acquire+0x664/0x3e00 [ 43.002926] ? __lock_is_held+0xb6/0x140 [ 43.006988] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 43.012869] ? __might_sleep+0x95/0x190 [ 43.016836] __alloc_pages_nodemask+0x9fb/0xd80 [ 43.021490] ? __alloc_pages_slowpath+0x2cc0/0x2cc0 [ 43.026489] ? add_to_page_cache_lru+0x510/0x510 [ 43.031242] ? check_noncircular+0x20/0x20 [ 43.035462] ? check_noncircular+0x20/0x20 [ 43.039696] ? lock_acquire+0x1d5/0x580 [ 43.043691] alloc_pages_current+0xb6/0x1e0 [ 43.048003] __page_cache_alloc+0x334/0x500 [ 43.052314] ? rcu_read_lock_held+0xa9/0xc0 [ 43.056622] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 43.063987] filemap_fault+0xf34/0x1ca0 [ 43.067952] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 43.073146] ? __lock_page_or_retry+0x4f0/0x4f0 [ 43.077811] ? filemap_map_pages+0x942/0x15d0 [ 43.082290] ? free_obj_work+0x690/0x690 [ 43.086356] ? find_get_entries_tag+0xeb0/0xeb0 [ 43.091025] ? check_noncircular+0x20/0x20 [ 43.095253] ? print_irqtrace_events+0x270/0x270 [ 43.099989] ? print_irqtrace_events+0x270/0x270 [ 43.104734] ? do_raw_spin_trylock+0x190/0x190 [ 43.109318] ? lock_acquire+0x1d5/0x580 [ 43.113272] ? lock_acquire+0x1d5/0x580 [ 43.117227] ? ext4_filemap_fault+0x7a/0xad [ 43.121546] ? lock_release+0xa40/0xa40 [ 43.125518] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 43.131399] ? rcu_note_context_switch+0x710/0x710 [ 43.136324] ? __might_sleep+0x95/0x190 [ 43.140291] ? down_read+0x96/0x150 [ 43.143901] ? ext4_filemap_fault+0x7a/0xad [ 43.148216] ? __down_interruptible+0x6b0/0x6b0 [ 43.152881] ext4_filemap_fault+0x82/0xad [ 43.157003] __do_fault+0xeb/0x315 [ 43.160527] ? pte_offset_kernel+0xc7/0xc7 [ 43.164734] ? do_raw_spin_trylock+0x190/0x190 [ 43.169307] ? check_noncircular+0x20/0x20 [ 43.173538] __handle_mm_fault+0x1d8f/0x3ce0 [ 43.177944] ? __pmd_alloc+0x4e0/0x4e0 [ 43.181819] ? find_held_lock+0x35/0x1d0 [ 43.185870] ? handle_mm_fault+0x2a0/0x930 [ 43.190088] ? lock_downgrade+0x980/0x980 [ 43.194236] handle_mm_fault+0x38f/0x930 [ 43.198280] ? down_read_trylock+0xdb/0x170 [ 43.202593] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 43.207156] ? vmacache_find+0x5f/0x280 [ 43.211120] ? find_vma+0x30/0x150 [ 43.214649] __do_page_fault+0x5c9/0xc90 [ 43.218695] ? mm_fault_error+0x2c0/0x2c0 [ 43.222812] ? __fdget+0x18/0x20 [ 43.226177] do_page_fault+0xee/0x720 [ 43.229964] ? __do_page_fault+0xc90/0xc90 [ 43.234187] ? __sb_end_write+0xa0/0xd0 [ 43.238149] ? vfs_write+0x224/0x510 [ 43.241860] ? retint_user+0x18/0x18 [ 43.245559] ? page_fault+0x36/0x60 [ 43.249174] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 43.254009] ? page_fault+0x36/0x60 [ 43.257625] page_fault+0x4c/0x60 [ 43.261058] RIP: 0033:0x7fea37229180 [ 43.264747] RSP: 002b:00007ffc3a5e7f48 EFLAGS: 00010246 [ 43.270094] RAX: 0000000000000000 RBX: 0000000001694030 RCX: 0000000000000008 [ 43.277345] RDX: 0000000000000001 RSI: 00000000000001c8 RDI: 00007fea37539e40 [ 43.284599] RBP: 0000000000021240 R08: 0000000000000000 R09: 00007ffc3a5e8076 [ 43.291852] R10: 0000000000000008 R11: 00007fea37309e90 R12: 00000000016f9dc0 [ 43.299118] R13: 00000000000001c8 R14: 00007fea37539e40 R15: 00007fea37539e40 [ 43.306484] Mem-Info: [ 43.309698] active_anon:3493 inactive_anon:64 isolated_anon:0 [ 43.309698] active_file:15 inactive_file:19 isolated_file:0 [ 43.309698] unevictable:0 dirty:0 writeback:0 unstable:0 [ 43.309698] slab_reclaimable:7319 slab_unreclaimable:82636 [ 43.309698] mapped:2 shmem:70 pagetables:308 bounce:0 [ 43.309698] free:23733 free_pcp:30 free_cma:0 [ 43.341734] Node 0 active_anon:13972kB inactive_anon:256kB active_file:60kB inactive_file:76kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 6144kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 43.368532] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB 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 [ 43.394676] lowmem_reserve[]: 0 2870 6381 6381 [ 43.399294] Node 0 DMA32 free:43500kB min:30328kB low:37908kB high:45488kB active_anon:28kB inactive_anon:4kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2942308kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 43.426658] lowmem_reserve[]: 0 0 3510 3510 [ 43.431030] Node 0 Normal free:35524kB min:37084kB low:46352kB high:55620kB active_anon:13944kB inactive_anon:252kB active_file:60kB inactive_file:76kB unevictable:0kB writepending:0kB present:4718592kB managed:3594624kB mlocked:0kB kernel_stack:3040kB pagetables:1232kB bounce:0kB free_pcp:120kB local_pcp:16kB free_cma:0kB [ 43.460409] lowmem_reserve[]: 0 0 0 0 [ 43.464254] 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 [ 43.477889] Node 0 DMA32: 7*4kB (UME) 6*8kB (UME) 6*16kB (UME) 6*32kB (UME) 4*64kB (UM) 5*128kB (ME) 5*256kB (ME) 4*512kB (ME) 4*1024kB (UME) 3*2048kB (ME) 7*4096kB (M) = 43500kB [ 43.494033] Node 0 Normal: 381*4kB (UM) 324*8kB (UM) 231*16kB (UM) 150*32kB (M) 76*64kB (ME) 21*128kB (UM) 20*256kB (M) 12*512kB (M) 0*1024kB 2*2048kB (M) 0*4096kB = 35524kB [ 43.509767] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 43.518362] 104 total pagecache pages [ 43.522194] 0 pages in swap cache [ 43.525651] Swap cache stats: add 0, delete 0, find 0/0 [ 43.531031] Free swap = 0kB [ 43.534065] Total swap = 0kB [ 43.537091] 1965979 pages RAM [ 43.540208] 0 pages HighMem/MovableOnly [ 43.544187] 327769 pages reserved [ 43.547634] Unreclaimable slab info: [ 43.552228] Name Used Total [ 43.557764] hashtab_node 118KB 119KB [ 43.563131] ebitmap_node 382KB 385KB [ 43.569293] avtab_node 1012KB 1017KB [ 43.574677] TIPC 1KB 7KB [ 43.580057] SCTPv6 2KB 4KB [ 43.585439] DCCPv6 2KB 7KB [ 43.590803] DCCP 2KB 6KB [ 43.596960] fib6_nodes 0KB 4KB [ 43.602337] ip6_dst_cache 7KB 7KB [ 43.607713] RAWv6 9KB 13KB [ 43.613081] UDPv6 12KB 14KB [ 43.618442] TCPv6 2KB 5KB [ 43.623808] sd_ext_cdb 0KB 3KB [ 43.629181] scsi_sense_cache 95KB 136KB [ 43.634539] virtio_scsi_cmd 16KB 16KB [ 43.639894] sgpool-128 8KB 8KB [ 43.645262] sgpool-64 4KB 6KB [ 43.650619] sgpool-32 114KB 118KB [ 43.655976] sgpool-16 39KB 41KB [ 43.661346] sgpool-8 193KB 195KB [ 43.666722] cfq_io_cq 15KB 19KB [ 43.672091] cfq_queue 25KB 30KB [ 43.677469] mqueue_inode_cache 1KB 7KB [ 43.682924] nfs_commit_data 3KB 7KB [ 43.688297] nfs_write_data 34KB 37KB [ 43.693676] jbd2_inode 1KB 3KB [ 43.699052] ext4_system_zone 0KB 3KB [ 43.704442] bio-1 1KB 3KB [ 43.709836] rpc_buffers 17KB 19KB [ 43.715217] rpc_tasks 2KB 3KB [ 43.720604] UNIX 780KB 780KB [ 43.725985] tcp_bind_bucket 0KB 4KB [ 43.731770] ip_fib_trie 0KB 3KB [ 43.737139] ip_fib_alias 0KB 3KB [ 43.742517] ip_dst_cache 3KB 4KB [ 43.747916] RAW 5KB 7KB [ 43.753289] UDP 29KB 39KB [ 43.758674] TCP 7KB 7KB [ 43.764057] hugetlbfs_inode_cache 1KB 7KB [ 43.769805] eventpoll_pwq 10KB 11KB [ 43.775183] eventpoll_epi 18KB 23KB [ 43.780570] inotify_inode_mark 3KB 7KB [ 43.786045] request_queue 37KB 91KB [ 43.791413] blkdev_ioc 21KB 23KB [ 43.796773] bio-0 326KB 330KB [ 43.802141] biovec-(1<<(21-12)) 453KB 453KB [ 43.807683] biovec-64 156KB 157KB [ 43.813051] biovec-16 20KB 22KB [ 43.818424] bio_integrity_payload 0KB 4KB [ 43.824141] khugepaged_mm_slot 0KB 3KB [ 43.829608] uid_cache 0KB 3KB [ 43.834983] dmaengine-unmap-2 0KB 3KB [ 43.840355] audit_buffer 0KB 3KB [ 43.845725] skbuff_fclone_cache 135KB 138KB [ 43.851283] skbuff_head_cache 1623KB 1623KB [ 43.856663] configfs_dir_cache 0KB 4KB [ 43.862124] file_lock_cache 160KB 162KB [ 43.868625] file_lock_ctx 1KB 3KB [ 43.873993] fsnotify_mark_connector 2KB 3KB [ 43.879893] shmem_inode_cache 1045KB 1046KB [ 43.885266] task_delay_info 318KB 320KB [ 43.890647] sigqueue 367KB 374KB [ 43.896006] kernfs_node_cache 2288KB 2295KB [ 43.901401] mnt_cache 15KB 16KB [ 43.906763] filp 8290KB 8730KB [ 43.912127] names_cache 109956KB 109994KB [ 43.917513] avc_node 37KB 39KB [ 43.922876] selinux_file_security 417KB 488KB [ 43.928586] selinux_inode_security 1954KB 1956KB [ 43.934394] key_jar 3KB 7KB [ 43.939752] nsproxy 0KB 3KB [ 43.945118] vm_area_struct 18664KB 18678KB [ 43.950476] mm_struct 4518KB 4531KB [ 43.955843] fs_cache 425KB 432KB [ 43.961200] files_cache 1592KB 1597KB [ 43.966566] signal_cache 2538KB 2544KB [ 43.971924] sighand_cache 215KB 326KB [ 43.977379] task_struct 10835KB 10841KB [ 43.982739] cred_jar 2355KB 2360KB [ 43.988104] anon_vma_chain 7825KB 7835KB [ 43.993487] anon_vma 129KB 338KB [ 43.998857] pid 221KB 228KB [ 44.004989] Acpi-Operand 106KB 170KB [ 44.010369] Acpi-Namespace 19KB 23KB [ 44.015730] numa_policy 0KB 3KB [ 44.021094] debug_objects_cache 530KB 531KB [ 44.026644] trace_event_file 145KB 147KB [ 44.032035] ftrace_event_field 257KB 259KB [ 44.037495] pool_workqueue 24KB 28KB [ 44.042853] page->ptl 3098KB 3107KB [ 44.048251] kmalloc-262144 1032KB 1032KB [ 44.053626] kmalloc-131072 650KB 650KB [ 44.058987] kmalloc-65536 264KB 264KB [ 44.064352] kmalloc-32768 825KB 825KB [ 44.069712] kmalloc-16384 181KB 181KB [ 44.075079] kmalloc-8192 519KB 519KB [ 44.080436] kmalloc-4096 6358KB 6396KB [ 44.085801] kmalloc-2048 4798KB 4800KB [ 44.091158] kmalloc-1024 2856KB 2858KB [ 44.096526] kmalloc-512 2775KB 2782KB [ 44.101883] kmalloc-256 1920KB 2422KB [ 44.107250] kmalloc-128 406KB 507KB [ 44.112610] kmalloc-96 2066KB 2068KB [ 44.117976] kmalloc-64 2468KB 2472KB [ 44.123332] kmalloc-32 2391KB 2401KB [ 44.128700] kmalloc-192 910KB 912KB [ 44.134057] kmem_cache 100KB 105KB [ 44.140201] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 44.148802] [ 1823] 0 1823 5385 182 86016 0 -1000 udevd [ 44.156961] [ 3502] 0 3502 14265 164 126976 0 0 rsyslogd [ 44.165370] [ 3557] 0 3557 4725 52 81920 0 0 cron [ 44.173438] [ 3560] 0 3560 3736 44 69632 0 0 mcstransd [ 44.181936] [ 3586] 0 3586 12490 152 135168 0 -1000 sshd [ 44.190008] [ 3627] 0 3627 3694 40 73728 0 0 getty [ 44.198187] [ 3628] 0 3628 3694 41 77824 0 0 getty [ 44.206342] [ 3629] 0 3629 3694 41 73728 0 0 getty [ 44.214496] [ 3630] 0 3630 3694 40 77824 0 0 getty [ 44.222655] [ 3631] 0 3631 3694 41 77824 0 0 getty [ 44.230811] [ 3632] 0 3632 3694 39 77824 0 0 getty [ 44.238970] [ 3633] 0 3633 3649 40 77824 0 0 getty [ 44.247111] [ 3638] 0 3638 5681 455 86016 0 -1000 udevd [ 44.255262] [ 3639] 0 3639 5681 455 86016 0 -1000 udevd [ 44.263422] [ 3655] 0 3655 17821 198 188416 0 0 sshd [ 44.271515] [ 3657] 0 3657 280 1 32768 0 0 syzkaller610764 [ 44.280545] [ 3658] 0 3658 4375 0 32768 0 0 syzkaller610764 [ 44.289583] [ 3659] 0 3659 4375 0 32768 0 0 syzkaller610764 [ 44.298613] [ 3660] 0 3660 4375 0 32768 0 0 syzkaller610764 [ 44.307643] [ 3661] 0 3661 4375 0 32768 0 0 syzkaller610764 [ 44.316761] [ 3662] 0 3662 4375 0 32768 0 0 syzkaller610764 [ 44.325801] [ 3663] 0 3663 4375 522 36864 0 0 syzkaller610764 [ 44.334814] [ 3664] 0 3664 4375 522 36864 0 0 syzkaller610764 [ 44.343839] [ 3665] 0 3665 4375 522 36864 0 0 syzkaller610764 [ 44.352866] Out of memory: Kill process 3663 (syzkaller610764) score 0 or sacrifice child [ 44.362839] Killed process 3663 (syzkaller610764) total-vm:17500kB, anon-rss:2088kB, file-rss:0kB, shmem-rss:0kB [ 44.375880] oom_reaper: reaped process 3663 (syzkaller610764), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 44.809303] kworker/0:1 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 44.821706] kworker/0:1 cpuset=/ mems_allowed=0 [ 44.826520] CPU: 0 PID: 24 Comm: kworker/0:1 Not tainted 4.15.0-rc7-mm1+ #56 [ 44.833675] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.843005] Workqueue: events pcpu_balance_workfn [ 44.847824] Call Trace: [ 44.850391] dump_stack+0x194/0x257 [ 44.853989] ? arch_local_irq_restore+0x53/0x53 [ 44.858629] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 44.863797] dump_header+0x28c/0xe2b [ 44.867483] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 44.872641] ? pagefault_out_of_memory+0x145/0x145 [ 44.877550] ? print_irqtrace_events+0x270/0x270 [ 44.882285] ? avc_has_perm_noaudit+0x37e/0x520 [ 44.886923] ? check_noncircular+0x20/0x20 [ 44.891134] ? reacquire_held_locks+0x1f9/0x3e0 [ 44.895769] ? reacquire_held_locks+0x1f9/0x3e0 [ 44.900408] ? check_noncircular+0x20/0x20 [ 44.904609] ? task_will_free_mem+0x252/0xaa0 [ 44.909071] ? check_noncircular+0x20/0x20 [ 44.913277] ? print_irqtrace_events+0x270/0x270 [ 44.918006] ? ___ratelimit+0x30d/0x630 [ 44.921962] ? lock_downgrade+0x980/0x980 [ 44.926081] ? lock_release+0xa40/0xa40 [ 44.930040] ? mark_held_locks+0xaf/0x100 [ 44.934160] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 44.939231] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 44.944213] ? trace_hardirqs_on+0xd/0x10 [ 44.948328] ? ___ratelimit+0x95/0x630 [ 44.952181] ? idr_get_free_cmn+0xfd0/0xfd0 [ 44.956468] ? check_noncircular+0x20/0x20 [ 44.960677] oom_kill_process+0x81b/0x9f0 [ 44.964791] ? oom_badness+0xd1/0x980 [ 44.968556] ? lock_release+0xa40/0xa40 [ 44.972499] ? oom_kill_memcg_member+0x20/0x20 [ 44.977057] ? oom_evaluate_task+0x480/0x480 [ 44.981436] ? out_of_memory+0xe1c/0x1790 [ 44.985552] ? lock_downgrade+0x980/0x980 [ 44.989670] ? lock_release+0xa40/0xa40 [ 44.993608] ? find_next_bit+0xcc/0x100 [ 44.997547] ? blocking_notifier_call_chain+0x112/0x190 [ 45.002886] ? oom_evaluate_task+0x284/0x480 [ 45.007264] out_of_memory+0x9d5/0x1790 [ 45.011215] ? oom_killer_disable+0x310/0x310 [ 45.015691] ? mutex_trylock+0x23a/0x2d0 [ 45.019719] ? __alloc_pages_slowpath+0xf63/0x2cc0 [ 45.024621] ? __lock_is_held+0xb6/0x140 [ 45.028650] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 45.034078] __alloc_pages_slowpath+0x1ce4/0x2cc0 [ 45.038912] ? warn_alloc+0x2b0/0x2b0 [ 45.042679] ? check_noncircular+0x20/0x20 [ 45.046886] ? print_irqtrace_events+0x270/0x270 [ 45.051615] ? find_held_lock+0x35/0x1d0 [ 45.055650] ? __mutex_lock+0x5bd/0x1a80 [ 45.059685] ? __lock_acquire+0x664/0x3e00 [ 45.063890] ? lock_release+0xa40/0xa40 [ 45.067831] ? memset+0x31/0x40 [ 45.071079] ? do_raw_spin_trylock+0x190/0x190 [ 45.075644] ? __lock_is_held+0xb6/0x140 [ 45.079694] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 45.085553] ? __might_sleep+0x95/0x190 [ 45.089506] __alloc_pages_nodemask+0x9fb/0xd80 [ 45.094147] ? __alloc_pages_slowpath+0x2cc0/0x2cc0 [ 45.099129] ? __lock_acquire+0x664/0x3e00 [ 45.103340] ? __lock_acquire+0x664/0x3e00 [ 45.107548] ? print_irqtrace_events+0x270/0x270 [ 45.112275] ? __lock_is_held+0xb6/0x140 [ 45.116314] ? find_next_bit+0xcc/0x100 [ 45.120267] pcpu_populate_chunk+0x1b3/0x880 [ 45.124646] ? find_next_bit+0x7/0x100 [ 45.128509] pcpu_balance_workfn+0xf3e/0x1520 [ 45.132973] ? check_noncircular+0x20/0x20 [ 45.137175] ? find_held_lock+0x35/0x1d0 [ 45.141212] ? pcpu_create_chunk+0x900/0x900 [ 45.145590] ? lock_release+0xa40/0xa40 [ 45.149540] ? check_noncircular+0x20/0x20 [ 45.153754] ? lock_acquire+0x1d5/0x580 [ 45.157694] ? lock_acquire+0x1d5/0x580 [ 45.161634] ? process_one_work+0xb01/0x1af0 [ 45.166036] ? __lock_is_held+0xb6/0x140 [ 45.170079] process_one_work+0xbbf/0x1af0 [ 45.174280] ? trace_hardirqs_on+0xd/0x10 [ 45.178404] ? pwq_dec_nr_in_flight+0x450/0x450 [ 45.183062] ? __schedule+0x8f3/0x2060 [ 45.186939] ? check_noncircular+0x20/0x20 [ 45.191153] ? __lock_is_held+0xb6/0x140 [ 45.195207] ? lock_acquire+0x1d5/0x580 [ 45.199146] ? lock_acquire+0x1d5/0x580 [ 45.203087] ? worker_thread+0x4a3/0x1990 [ 45.207203] ? lock_downgrade+0x980/0x980 [ 45.211321] ? lock_release+0xa40/0xa40 [ 45.215271] ? worker_pool_assign_id+0x1b0/0x1b0 [ 45.220003] ? do_raw_spin_trylock+0x190/0x190 [ 45.224572] worker_thread+0x223/0x1990 [ 45.228534] ? process_one_work+0x1af0/0x1af0 [ 45.233006] ? _raw_spin_unlock_irq+0x27/0x70 [ 45.237477] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 45.242462] ? trace_hardirqs_on+0xd/0x10 [ 45.246579] ? mmdrop+0x18/0x30 [ 45.249827] ? finish_task_switch+0x1f6/0x740 [ 45.254301] ? copy_overflow+0x20/0x20 [ 45.258165] ? __schedule+0x8f3/0x2060 [ 45.262045] ? find_held_lock+0x35/0x1d0 [ 45.266081] ? find_held_lock+0x35/0x1d0 [ 45.270115] ? complete+0x62/0x80 [ 45.273543] ? __schedule+0x2060/0x2060 [ 45.277484] ? do_wait_intr_irq+0x3e0/0x3e0 [ 45.281771] ? __lockdep_init_map+0xe4/0x650 [ 45.286148] ? do_raw_spin_trylock+0x190/0x190 [ 45.290697] ? lockdep_init_map+0x9/0x10 [ 45.294724] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 45.299803] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 45.304787] ? trace_hardirqs_on+0xd/0x10 [ 45.308904] ? __kthread_parkme+0x175/0x240 [ 45.313194] kthread+0x33c/0x400 [ 45.316529] ? process_one_work+0x1af0/0x1af0 [ 45.320992] ? kthread_stop+0x7a0/0x7a0 [ 45.324944] ret_from_fork+0x37/0x50 [ 45.328720] Mem-Info: [ 45.331661] active_anon:2976 inactive_anon:64 isolated_anon:0 [ 45.331661] active_file:12 inactive_file:22 isolated_file:0 [ 45.331661] unevictable:0 dirty:0 writeback:0 unstable:0 [ 45.331661] slab_reclaimable:7319 slab_unreclaimable:82632 [ 45.331661] mapped:2 shmem:70 pagetables:307 bounce:0 [ 45.331661] free:18638 free_pcp:69 free_cma:0 [ 45.364614] Node 0 active_anon:11904kB inactive_anon:256kB active_file:48kB inactive_file:88kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 4096kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 45.391470] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB 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 [ 45.417600] lowmem_reserve[]: 0 2870 6381 6381 [ 45.422204] Node 0 DMA32 free:40152kB min:30328kB low:37908kB high:45488kB active_anon:28kB inactive_anon:4kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2942308kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:76kB local_pcp:76kB free_cma:0kB [ 45.449647] lowmem_reserve[]: 0 0 3510 3510 [ 45.453994] Node 0 Normal free:18492kB min:37084kB low:46352kB high:55620kB active_anon:11876kB inactive_anon:252kB active_file:52kB inactive_file:84kB unevictable:0kB writepending:0kB present:4718592kB managed:3594624kB mlocked:0kB kernel_stack:3040kB pagetables:1228kB bounce:0kB free_pcp:200kB local_pcp:152kB free_cma:0kB [ 45.482853] lowmem_reserve[]: 0 0 0 0 [ 45.486679] 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 [ 45.500320] Node 0 DMA32: 6*4kB (UME) 6*8kB (UME) 5*16kB (UME) 4*32kB (ME) 3*64kB (M) 6*128kB (UME) 6*256kB (UME) 5*512kB (UME) 4*1024kB (UME) 3*2048kB (ME) 6*4096kB (M) = 40152kB [ 45.516586] Node 0 Normal: 311*4kB (M) 260*8kB (M) 190*16kB (M) 119*32kB (UM) 58*64kB (ME) 10*128kB (M) 7*256kB (M) 3*512kB (M) 0*1024kB 0*2048kB 0*4096kB = 18492kB [ 45.531542] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 45.540134] 104 total pagecache pages [ 45.543955] 0 pages in swap cache [ 45.547405] Swap cache stats: add 0, delete 0, find 0/0 [ 45.552783] Free swap = 0kB [ 45.555810] Total swap = 0kB [ 45.558823] 1965979 pages RAM [ 45.561927] 0 pages HighMem/MovableOnly [ 45.565906] 327769 pages reserved [ 45.569435] Unreclaimable slab info: [ 45.573346] Name Used Total [ 45.578944] hashtab_node 118KB 119KB [ 45.584306] ebitmap_node 382KB 385KB [ 45.589672] avtab_node 1012KB 1017KB [ 45.595054] TIPC 1KB 7KB [ 45.600430] SCTPv6 2KB 4KB [ 45.605788] DCCPv6 2KB 7KB [ 45.611186] DCCP 2KB 6KB [ 45.616578] fib6_nodes 0KB 4KB [ 45.621958] ip6_dst_cache 6KB 7KB [ 45.627331] RAWv6 9KB 13KB [ 45.632689] UDPv6 12KB 14KB [ 45.638056] TCPv6 2KB 5KB [ 45.643420] sd_ext_cdb 0KB 3KB [ 45.648771] scsi_sense_cache 95KB 136KB [ 45.654137] virtio_scsi_cmd 16KB 16KB [ 45.659496] sgpool-128 8KB 8KB [ 45.664843] sgpool-64 4KB 6KB [ 45.670216] sgpool-32 113KB 118KB [ 45.675592] sgpool-16 39KB 41KB [ 45.680942] sgpool-8 192KB 195KB [ 45.686317] cfq_io_cq 15KB 19KB [ 45.691674] cfq_queue 25KB 30KB [ 45.697035] mqueue_inode_cache 1KB 7KB [ 45.702500] nfs_commit_data 3KB 7KB [ 45.707855] nfs_write_data 34KB 37KB [ 45.713218] jbd2_inode 1KB 3KB [ 45.719644] ext4_system_zone 0KB 3KB [ 45.725039] bio-1 1KB 3KB [ 45.730453] rpc_buffers 17KB 19KB [ 45.735811] rpc_tasks 2KB 3KB [ 45.741184] UNIX 780KB 780KB [ 45.746562] tcp_bind_bucket 0KB 4KB [ 45.751944] ip_fib_trie 0KB 3KB [ 45.757319] ip_fib_alias 0KB 3KB [ 45.762695] ip_dst_cache 3KB 4KB [ 45.768071] RAW 5KB 7KB [ 45.773444] UDP 29KB 39KB [ 45.778816] TCP 7KB 7KB [ 45.784188] hugetlbfs_inode_cache 1KB 7KB [ 45.789912] eventpoll_pwq 10KB 11KB [ 45.795292] eventpoll_epi 18KB 23KB [ 45.800664] inotify_inode_mark 3KB 7KB [ 45.806137] request_queue 37KB 91KB [ 45.811510] blkdev_ioc 21KB 23KB [ 45.817141] bio-0 325KB 330KB [ 45.822521] biovec-(1<<(21-12)) 453KB 453KB [ 45.828067] biovec-64 156KB 157KB [ 45.833440] biovec-16 19KB 22KB [ 45.838809] bio_integrity_payload 0KB 4KB [ 45.844525] khugepaged_mm_slot 0KB 3KB [ 45.849990] uid_cache 0KB 3KB [ 45.855355] dmaengine-unmap-2 0KB 3KB [ 45.860721] audit_buffer 0KB 3KB [ 45.866094] skbuff_fclone_cache 135KB 138KB [ 45.871644] skbuff_head_cache 1623KB 1623KB [ 45.877034] configfs_dir_cache 0KB 4KB [ 45.882491] file_lock_cache 160KB 162KB [ 45.887864] file_lock_ctx 1KB 3KB [ 45.893248] fsnotify_mark_connector 2KB 3KB [ 45.899141] shmem_inode_cache 1045KB 1046KB [ 45.904511] task_delay_info 318KB 320KB [ 45.909884] sigqueue 367KB 374KB [ 45.915260] kernfs_node_cache 2288KB 2295KB [ 45.920631] mnt_cache 15KB 16KB [ 45.926029] filp 8288KB 8730KB [ 45.931407] names_cache 109951KB 109990KB [ 45.936790] avc_node 37KB 39KB [ 45.942164] selinux_file_security 417KB 488KB [ 45.947885] selinux_inode_security 1954KB 1956KB [ 45.953688] key_jar 3KB 7KB [ 45.959060] nsproxy 0KB 3KB [ 45.964431] vm_area_struct 18664KB 18678KB [ 45.969800] mm_struct 4518KB 4531KB [ 45.975170] fs_cache 425KB 432KB [ 45.980541] files_cache 1592KB 1597KB [ 45.985912] signal_cache 2538KB 2544KB [ 45.991284] sighand_cache 215KB 326KB [ 45.996655] task_struct 10835KB 10841KB [ 46.002043] cred_jar 2355KB 2360KB [ 46.007417] anon_vma_chain 7825KB 7835KB [ 46.012798] anon_vma 128KB 338KB [ 46.018171] pid 221KB 228KB [ 46.023543] Acpi-Operand 106KB 170KB [ 46.028922] Acpi-Namespace 19KB 23KB [ 46.034314] numa_policy 0KB 3KB [ 46.039686] debug_objects_cache 529KB 531KB [ 46.045234] trace_event_file 145KB 147KB [ 46.050606] ftrace_event_field 257KB 259KB [ 46.056065] pool_workqueue 24KB 28KB [ 46.061529] page->ptl 3098KB 3107KB [ 46.066960] kmalloc-262144 1032KB 1032KB [ 46.073320] kmalloc-131072 650KB 650KB [ 46.078707] kmalloc-65536 264KB 264KB [ 46.084081] kmalloc-32768 825KB 825KB [ 46.089452] kmalloc-16384 181KB 181KB [ 46.094823] kmalloc-8192 519KB 519KB [ 46.100195] kmalloc-4096 6353KB 6392KB [ 46.105569] kmalloc-2048 4796KB 4800KB [ 46.110957] kmalloc-1024 2856KB 2858KB [ 46.116329] kmalloc-512 2775KB 2782KB [ 46.121711] kmalloc-256 1916KB 2422KB [ 46.127086] kmalloc-128 406KB 507KB [ 46.132474] kmalloc-96 2072KB 2072KB [ 46.137832] kmalloc-64 2476KB 2476KB [ 46.143201] kmalloc-32 2390KB 2401KB [ 46.148602] kmalloc-192 912KB 912KB [ 46.153954] kmem_cache 100KB 105KB [ 46.159320] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 46.167967] [ 1823] 0 1823 5385 182 86016 0 -1000 udevd [ 46.176197] [ 3502] 0 3502 14265 164 126976 0 0 rsyslogd [ 46.184615] [ 3557] 0 3557 4725 52 81920 0 0 cron [ 46.192680] [ 3560] 0 3560 3736 44 69632 0 0 mcstransd [ 46.201198] [ 3586] 0 3586 12490 152 135168 0 -1000 sshd [ 46.209602] [ 3627] 0 3627 3694 40 73728 0 0 getty [ 46.217753] [ 3628] 0 3628 3694 41 77824 0 0 getty [ 46.225915] [ 3629] 0 3629 3694 41 73728 0 0 getty [ 46.234073] [ 3630] 0 3630 3694 40 77824 0 0 getty [ 46.242222] [ 3631] 0 3631 3694 41 77824 0 0 getty [ 46.250374] [ 3632] 0 3632 3694 39 77824 0 0 getty [ 46.258533] [ 3633] 0 3633 3649 40 77824 0 0 getty [ 46.266711] [ 3638] 0 3638 5681 455 86016 0 -1000 udevd [ 46.274874] [ 3639] 0 3639 5681 455 86016 0 -1000 udevd [ 46.283059] [ 3655] 0 3655 17821 198 188416 0 0 sshd [ 46.291116] [ 3657] 0 3657 280 1 32768 0 0 syzkaller610764 [ 46.300146] [ 3658] 0 3658 4375 0 32768 0 0 syzkaller610764 [ 46.309169] [ 3659] 0 3659 4375 0 32768 0 0 syzkaller610764 [ 46.318196] [ 3660] 0 3660 4375 0 32768 0 0 syzkaller610764 [ 46.327220] [ 3661] 0 3661 4375 0 32768 0 0 syzkaller610764 [ 46.336258] [ 3662] 0 3662 4375 0 32768 0 0 syzkaller610764 [ 46.345279] [ 3663] 0 3663 4375 0 32768 0 0 syzkaller610764 [ 46.354317] [ 3664] 0 3664 4375 522 36864 0 0 syzkaller610764 [ 46.363341] [ 3665] 0 3665 4375 522 36864 0 0 syzkaller610764 [ 46.372360] Out of memory: Kill process 3664 (syzkaller610764) score 0 or sacrifice child [ 46.380928] Killed process 3664 (syzkaller610764) total-vm:17500kB, anon-rss:2088kB, file-rss:0kB, shmem-rss:0kB [ 46.393735] oom_reaper: reaped process 3664 (syzkaller610764), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 46.404405] cron invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=0 [ 46.415485] cron cpuset=/ mems_allowed=0 [ 46.419565] CPU: 1 PID: 3557 Comm: cron Not tainted 4.15.0-rc7-mm1+ #56 [ 46.426284] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.435604] Call Trace: [ 46.438165] dump_stack+0x194/0x257 [ 46.441763] ? arch_local_irq_restore+0x53/0x53 [ 46.446407] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 46.451574] dump_header+0x28c/0xe2b [ 46.455261] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 46.460425] ? pagefault_out_of_memory+0x145/0x145 [ 46.465328] ? print_irqtrace_events+0x270/0x270 [ 46.470058] ? avc_has_perm_noaudit+0x37e/0x520 [ 46.474697] ? check_noncircular+0x20/0x20 [ 46.478900] ? check_noncircular+0x20/0x20 [ 46.483131] ? print_irqtrace_events+0x270/0x270 [ 46.487880] ? reacquire_held_locks+0x1f9/0x3e0 [ 46.492536] ? reacquire_held_locks+0x1f9/0x3e0 [ 46.497200] ? check_noncircular+0x20/0x20 [ 46.501404] ? task_will_free_mem+0x252/0xaa0 [ 46.505865] ? check_noncircular+0x20/0x20 [ 46.510078] ? print_irqtrace_events+0x270/0x270 [ 46.514810] ? ___ratelimit+0x30d/0x630 [ 46.518771] ? lock_downgrade+0x980/0x980 [ 46.522888] ? lock_release+0xa40/0xa40 [ 46.526838] ? mark_held_locks+0xaf/0x100 [ 46.530954] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 46.536034] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 46.541023] ? trace_hardirqs_on+0xd/0x10 [ 46.545142] ? ___ratelimit+0x95/0x630 [ 46.548996] ? idr_get_free_cmn+0xfd0/0xfd0 [ 46.553287] ? check_noncircular+0x20/0x20 [ 46.557499] oom_kill_process+0x81b/0x9f0 [ 46.561614] ? oom_badness+0xd1/0x980 [ 46.565391] ? lock_release+0xa40/0xa40 [ 46.569337] ? oom_kill_memcg_member+0x20/0x20 [ 46.573888] ? oom_evaluate_task+0x480/0x480 [ 46.578269] ? out_of_memory+0xe1c/0x1790 [ 46.582384] ? lock_downgrade+0x980/0x980 [ 46.586502] ? lock_release+0xa40/0xa40 [ 46.590443] ? find_next_bit+0xcc/0x100 [ 46.594393] ? oom_evaluate_task+0x284/0x480 [ 46.598776] out_of_memory+0x9d5/0x1790 [ 46.602723] ? oom_killer_disable+0x310/0x310 [ 46.607192] ? mutex_trylock+0x23a/0x2d0 [ 46.611223] ? __alloc_pages_slowpath+0xf63/0x2cc0 [ 46.616118] ? __lock_is_held+0xb6/0x140 [ 46.620146] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 46.625575] __alloc_pages_slowpath+0x1ce4/0x2cc0 [ 46.630390] ? trace_hardirqs_on+0xd/0x10 [ 46.634519] ? warn_alloc+0x2b0/0x2b0 [ 46.638287] ? lock_downgrade+0x980/0x980 [ 46.642413] ? radix_tree_lookup_slot+0x99/0xe0 [ 46.647061] ? find_get_entry+0x53c/0x9e0 [ 46.651195] ? __lock_acquire+0x664/0x3e00 [ 46.655423] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 46.661281] ? __might_sleep+0x95/0x190 [ 46.665225] __alloc_pages_nodemask+0x9fb/0xd80 [ 46.669867] ? __alloc_pages_slowpath+0x2cc0/0x2cc0 [ 46.674852] ? add_to_page_cache_lru+0x510/0x510 [ 46.679579] ? check_noncircular+0x20/0x20 [ 46.683787] ? check_noncircular+0x20/0x20 [ 46.687996] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 46.692749] alloc_pages_current+0xb6/0x1e0 [ 46.697043] __page_cache_alloc+0x334/0x500 [ 46.701333] ? rcu_read_lock_held+0xa9/0xc0 [ 46.705636] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 46.712974] filemap_fault+0xf34/0x1ca0 [ 46.716922] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 46.722087] ? __lock_page_or_retry+0x4f0/0x4f0 [ 46.726730] ? filemap_map_pages+0x942/0x15d0 [ 46.731191] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 46.736366] ? find_get_entries_tag+0xeb0/0xeb0 [ 46.741003] ? __lock_acquire+0x664/0x3e00 [ 46.745214] ? check_noncircular+0x20/0x20 [ 46.749415] ? __lock_acquire+0x664/0x3e00 [ 46.753620] ? print_irqtrace_events+0x270/0x270 [ 46.758341] ? print_irqtrace_events+0x270/0x270 [ 46.763065] ? print_irqtrace_events+0x270/0x270 [ 46.767788] ? print_irqtrace_events+0x270/0x270 [ 46.772513] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 46.777673] ? lock_acquire+0x1d5/0x580 [ 46.781611] ? lock_acquire+0x1d5/0x580 [ 46.785550] ? ext4_filemap_fault+0x7a/0xad [ 46.789850] ? __lock_acquire+0x664/0x3e00 [ 46.794065] ? lock_release+0xa40/0xa40 [ 46.798009] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 46.803869] ? rcu_note_context_switch+0x710/0x710 [ 46.808768] ? __might_sleep+0x95/0x190 [ 46.812713] ? down_read+0x96/0x150 [ 46.816305] ? ext4_filemap_fault+0x7a/0xad [ 46.820592] ? __down_interruptible+0x6b0/0x6b0 [ 46.825242] ext4_filemap_fault+0x82/0xad [ 46.829363] __do_fault+0xeb/0x315 [ 46.832872] ? pte_offset_kernel+0xc7/0xc7 [ 46.837075] ? do_raw_spin_trylock+0x190/0x190 [ 46.841634] ? check_noncircular+0x20/0x20 [ 46.845841] __handle_mm_fault+0x1d8f/0x3ce0 [ 46.850221] ? __pmd_alloc+0x4e0/0x4e0 [ 46.854077] ? do_raw_spin_trylock+0x190/0x190 [ 46.858631] ? find_held_lock+0x35/0x1d0 [ 46.862667] ? handle_mm_fault+0x2a0/0x930 [ 46.866870] ? lock_downgrade+0x980/0x980 [ 46.871009] handle_mm_fault+0x38f/0x930 [ 46.875041] ? down_read_trylock+0xdb/0x170 [ 46.879331] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 46.883886] ? vmacache_find+0x5f/0x280 [ 46.887843] ? find_vma+0x30/0x150 [ 46.891363] __do_page_fault+0x5c9/0xc90 [ 46.895403] ? mm_fault_error+0x2c0/0x2c0 [ 46.899529] do_page_fault+0xee/0x720 [ 46.903298] ? nanosleep_copyout+0x100/0x100 [ 46.907674] ? __do_page_fault+0xc90/0xc90 [ 46.911882] ? SYSC_newstat+0x99/0xf0 [ 46.915651] ? cp_new_stat+0xa40/0xa40 [ 46.919513] ? retint_user+0x18/0x18 [ 46.923199] ? page_fault+0x36/0x60 [ 46.926811] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 46.931626] ? page_fault+0x36/0x60 [ 46.935225] page_fault+0x4c/0x60 [ 46.938644] RIP: 0033:0x403fc6 [ 46.941801] RSP: 002b:00007ffeb0182900 EFLAGS: 00010207 [ 46.947131] RAX: 0000000000000000 RBX: 00000000018191fa RCX: 00007fe3818a0c65 [ 46.954376] RDX: 00007ffeb01829d0 RSI: 00007ffeb01829d0 RDI: 0000000000408244 [ 46.961611] RBP: 00007ffeb0184cd0 R08: 0000000000000000 R09: 00000000000007e2 [ 46.968854] R10: 0000000000000011 R11: 0000000000000246 R12: 00000000004033c4 [ 46.976093] R13: 00007ffeb0184df0 R14: 0000000000000000 R15: 0000000000000000 [ 46.983480] Mem-Info: [ 46.986913] active_anon:2459 inactive_anon:64 isolated_anon:0 [ 46.986913] active_file:17 inactive_file:17 isolated_file:0 [ 46.986913] unevictable:0 dirty:0 writeback:0 unstable:0 [ 46.986913] slab_reclaimable:7317 slab_unreclaimable:82599 [ 46.986913] mapped:2 shmem:70 pagetables:306 bounce:0 [ 46.986913] free:19174 free_pcp:89 free_cma:0 [ 47.018966] Node 0 active_anon:9836kB inactive_anon:256kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 2048kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 47.045695] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB 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 [ 47.071837] lowmem_reserve[]: 0 2870 6381 6381 [ 47.076463] Node 0 DMA32 free:40152kB min:30328kB low:37908kB high:45488kB active_anon:28kB inactive_anon:4kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2942308kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:76kB local_pcp:0kB free_cma:0kB [ 47.103817] lowmem_reserve[]: 0 0 3510 3510 [ 47.108177] Node 0 Normal free:20636kB min:37084kB low:46352kB high:55620kB active_anon:9808kB inactive_anon:252kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:0kB present:4718592kB managed:3594624kB mlocked:0kB kernel_stack:3040kB pagetables:1224kB bounce:0kB free_pcp:280kB local_pcp:76kB free_cma:0kB [ 47.137641] lowmem_reserve[]: 0 0 0 0 [ 47.141492] 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 [ 47.155577] Node 0 DMA32: 6*4kB (UME) 6*8kB (UME) 5*16kB (UME) 4*32kB (ME) 3*64kB (M) 6*128kB (UME) 6*256kB (UME) 5*512kB (UME) 4*1024kB (UME) 3*2048kB (ME) 6*4096kB (M) = 40152kB [ 47.172367] Node 0 Normal: 311*4kB (M) 270*8kB (UM) 191*16kB (UM) 119*32kB (UM) 58*64kB (ME) 10*128kB (M) 7*256kB (M) 3*512kB (M) 0*1024kB 1*2048kB (M) 0*4096kB = 20636kB [ 47.187938] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 47.196522] 104 total pagecache pages [ 47.201236] 0 pages in swap cache [ 47.204704] Swap cache stats: add 0, delete 0, find 0/0 [ 47.210078] Free swap = 0kB [ 47.213108] Total swap = 0kB [ 47.216132] 1965979 pages RAM [ 47.219241] 0 pages HighMem/MovableOnly [ 47.223220] 327769 pages reserved [ 47.226677] Unreclaimable slab info: [ 47.230397] Name Used Total [ 47.235933] hashtab_node 118KB 119KB [ 47.241307] ebitmap_node 382KB 385KB [ 47.246689] avtab_node 1012KB 1017KB [ 47.252067] TIPC 1KB 7KB [ 47.257444] SCTPv6 2KB 4KB [ 47.262822] DCCPv6 2KB 7KB [ 47.268606] DCCP 2KB 6KB [ 47.273996] fib6_nodes 0KB 4KB [ 47.279356] ip6_dst_cache 6KB 7KB [ 47.284723] RAWv6 9KB 13KB [ 47.290082] UDPv6 12KB 14KB [ 47.295450] TCPv6 2KB 5KB [ 47.300817] sd_ext_cdb 0KB 3KB [ 47.306183] scsi_sense_cache 94KB 136KB [ 47.311555] virtio_scsi_cmd 16KB 16KB [ 47.316934] sgpool-128 8KB 8KB [ 47.322313] sgpool-64 4KB 6KB [ 47.327687] sgpool-32 112KB 118KB [ 47.333231] sgpool-16 38KB 41KB [ 47.338604] sgpool-8 191KB 195KB [ 47.343980] cfq_io_cq 15KB 19KB [ 47.349353] cfq_queue 25KB 30KB [ 47.355161] mqueue_inode_cache 1KB 7KB [ 47.360626] nfs_commit_data 3KB 7KB [ 47.366004] nfs_write_data 34KB 37KB [ 47.371406] jbd2_inode 1KB 3KB [ 47.376778] ext4_system_zone 0KB 3KB [ 47.382159] bio-1 1KB 3KB [ 47.387542] rpc_buffers 17KB 19KB [ 47.392914] rpc_tasks 2KB 3KB [ 47.398293] UNIX 780KB 780KB [ 47.404463] tcp_bind_bucket 0KB 4KB [ 47.409836] ip_fib_trie 0KB 3KB [ 47.415204] ip_fib_alias 0KB 3KB [ 47.420576] ip_dst_cache 3KB 4KB [ 47.425933] RAW 5KB 7KB [ 47.431301] UDP 29KB 39KB [ 47.436674] TCP 7KB 7KB [ 47.442044] hugetlbfs_inode_cache 1KB 7KB [ 47.447760] eventpoll_pwq 10KB 11KB [ 47.453131] eventpoll_epi 18KB 23KB [ 47.458487] inotify_inode_mark 3KB 7KB [ 47.463937] request_queue 34KB 68KB [ 47.469313] blkdev_ioc 21KB 23KB [ 47.474667] bio-0 325KB 330KB [ 47.480046] biovec-(1<<(21-12)) 453KB 453KB [ 47.485593] biovec-64 156KB 157KB [ 47.490950] biovec-16 18KB 22KB [ 47.496319] bio_integrity_payload 0KB 4KB [ 47.502038] khugepaged_mm_slot 0KB 3KB [ 47.507500] uid_cache 0KB 3KB [ 47.512858] dmaengine-unmap-2 0KB 3KB [ 47.518223] audit_buffer 0KB 3KB [ 47.523595] skbuff_fclone_cache 135KB 138KB [ 47.529160] skbuff_head_cache 1623KB 1623KB [ 47.534531] configfs_dir_cache 0KB 4KB [ 47.540830] file_lock_cache 160KB 162KB [ 47.546205] file_lock_ctx 1KB 3KB [ 47.552569] fsnotify_mark_connector 2KB 3KB [ 47.558451] shmem_inode_cache 1045KB 1046KB [ 47.563822] task_delay_info 318KB 320KB [ 47.569183] sigqueue 367KB 374KB [ 47.574551] kernfs_node_cache 2288KB 2295KB [ 47.579910] mnt_cache 15KB 16KB [ 47.585283] filp 8253KB 8707KB [ 47.590656] names_cache 109951KB 109981KB [ 47.596055] avc_node 37KB 39KB [ 47.601426] selinux_file_security 413KB 488KB [ 47.607129] selinux_inode_security 1954KB 1956KB [ 47.612927] key_jar 3KB 7KB [ 47.618300] nsproxy 0KB 3KB [ 47.623659] vm_area_struct 18663KB 18678KB [ 47.629039] mm_struct 4518KB 4531KB [ 47.634412] fs_cache 424KB 432KB [ 47.639769] files_cache 1592KB 1597KB [ 47.645131] signal_cache 2538KB 2544KB [ 47.650504] sighand_cache 212KB 319KB [ 47.655863] task_struct 10835KB 10835KB [ 47.661226] cred_jar 2355KB 2360KB [ 47.666599] anon_vma_chain 7823KB 7835KB [ 47.672709] anon_vma 124KB 338KB [ 47.678087] pid 221KB 228KB [ 47.683459] Acpi-Operand 106KB 170KB [ 47.688817] Acpi-Namespace 19KB 23KB [ 47.694183] numa_policy 0KB 3KB [ 47.699554] debug_objects_cache 529KB 531KB [ 47.705097] trace_event_file 145KB 147KB [ 47.710467] ftrace_event_field 257KB 259KB [ 47.715984] pool_workqueue 24KB 28KB [ 47.721361] page->ptl 3098KB 3107KB [ 47.726762] kmalloc-262144 1032KB 1032KB [ 47.732138] kmalloc-131072 650KB 650KB [ 47.737512] kmalloc-65536 264KB 264KB [ 47.742886] kmalloc-32768 825KB 825KB [ 47.748261] kmalloc-16384 181KB 181KB [ 47.753733] kmalloc-8192 519KB 519KB [ 47.759106] kmalloc-4096 6345KB 6375KB [ 47.764480] kmalloc-2048 4796KB 4800KB [ 47.769869] kmalloc-1024 2856KB 2858KB [ 47.775240] kmalloc-512 2775KB 2782KB [ 47.780618] kmalloc-256 1898KB 2400KB [ 47.785988] kmalloc-128 406KB 507KB [ 47.791361] kmalloc-96 2071KB 2072KB [ 47.796719] kmalloc-64 2475KB 2476KB [ 47.802844] kmalloc-32 2389KB 2401KB [ 47.808222] kmalloc-192 911KB 912KB [ 47.813596] kmem_cache 100KB 105KB [ 47.818950] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 47.827553] [ 1823] 0 1823 5385 182 86016 0 -1000 udevd [ 47.835713] [ 3502] 0 3502 14265 164 126976 0 0 rsyslogd [ 47.844116] [ 3557] 0 3557 4725 52 81920 0 0 cron [ 47.852181] [ 3560] 0 3560 3736 44 69632 0 0 mcstransd [ 47.860693] [ 3586] 0 3586 12490 152 135168 0 -1000 sshd [ 47.868763] [ 3627] 0 3627 3694 40 73728 0 0 getty [ 47.876902] [ 3628] 0 3628 3694 41 77824 0 0 getty [ 47.885058] [ 3629] 0 3629 3694 41 73728 0 0 getty [ 47.893201] [ 3630] 0 3630 3694 40 77824 0 0 getty [ 47.901350] [ 3631] 0 3631 3694 41 77824 0 0 getty [ 47.909506] [ 3632] 0 3632 3694 39 77824 0 0 getty [ 47.917707] [ 3633] 0 3633 3649 40 77824 0 0 getty [ 47.925876] [ 3638] 0 3638 5681 455 86016 0 -1000 udevd [ 47.934050] [ 3639] 0 3639 5681 455 86016 0 -1000 udevd [ 47.942231] [ 3655] 0 3655 17821 198 188416 0 0 sshd [ 47.950310] [ 3657] 0 3657 280 1 32768 0 0 syzkaller610764 [ 47.959344] [ 3658] 0 3658 4375 0 32768 0 0 syzkaller610764 [ 47.968370] [ 3659] 0 3659 4375 0 32768 0 0 syzkaller610764 [ 47.977403] [ 3660] 0 3660 4375 0 32768 0 0 syzkaller610764 [ 47.986428] [ 3661] 0 3661 4375 0 32768 0 0 syzkaller610764 [ 47.995459] [ 3662] 0 3662 4375 0 32768 0 0 syzkaller610764 [ 48.004487] [ 3663] 0 3663 4375 0 32768 0 0 syzkaller610764 [ 48.013516] [ 3664] 0 3664 4375 0 32768 0 0 syzkaller610764 [ 48.022548] [ 3665] 0 3665 4375 522 36864 0 0 syzkaller610764 [ 48.031582] Out of memory: Kill process 3665 (syzkaller610764) score 0 or sacrifice child [ 48.040706] Killed process 3665 (syzkaller610764) total-vm:17500kB, anon-rss:2088kB, file-rss:0kB, shmem-rss:0kB [ 48.053648] oom_reaper: reaped process 3665 (syzkaller610764), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 48.065520] init invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=0 [ 48.076816] init cpuset=/ mems_allowed=0 [ 48.080878] CPU: 0 PID: 1 Comm: init Not tainted 4.15.0-rc7-mm1+ #56 [ 48.087332] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.096648] Call Trace: [ 48.099205] dump_stack+0x194/0x257 [ 48.102811] ? arch_local_irq_restore+0x53/0x53 [ 48.107447] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 48.112612] dump_header+0x28c/0xe2b [ 48.116297] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 48.121455] ? pagefault_out_of_memory+0x145/0x145 [ 48.126349] ? __lock_acquire+0x664/0x3e00 [ 48.130549] ? print_irqtrace_events+0x270/0x270 [ 48.135286] ? check_noncircular+0x20/0x20 [ 48.139492] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 48.144646] ? check_noncircular+0x20/0x20 [ 48.148847] ? print_irqtrace_events+0x270/0x270 [ 48.153577] ? reacquire_held_locks+0x1f9/0x3e0 [ 48.158209] ? reacquire_held_locks+0x1f9/0x3e0 [ 48.162844] ? check_noncircular+0x20/0x20 [ 48.167050] ? task_will_free_mem+0x252/0xaa0 [ 48.171516] ? check_noncircular+0x20/0x20 [ 48.175721] ? print_irqtrace_events+0x270/0x270 [ 48.180455] ? ___ratelimit+0x30d/0x630 [ 48.184399] ? lock_downgrade+0x980/0x980 [ 48.188523] ? lock_release+0xa40/0xa40 [ 48.192467] ? mark_held_locks+0xaf/0x100 [ 48.196581] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 48.201652] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 48.206634] ? trace_hardirqs_on+0xd/0x10 [ 48.210750] ? ___ratelimit+0x95/0x630 [ 48.214601] ? idr_get_free_cmn+0xfd0/0xfd0 [ 48.218888] ? check_noncircular+0x20/0x20 [ 48.223096] oom_kill_process+0x81b/0x9f0 [ 48.227211] ? lock_release+0xa40/0xa40 [ 48.231152] ? oom_kill_memcg_member+0x20/0x20 [ 48.235702] ? oom_evaluate_task+0x480/0x480 [ 48.240087] ? out_of_memory+0xe1c/0x1790 [ 48.244201] ? lock_downgrade+0x980/0x980 [ 48.248318] ? lock_release+0xa40/0xa40 [ 48.252255] ? find_next_bit+0xcc/0x100 [ 48.256202] ? oom_evaluate_task+0x284/0x480 [ 48.260580] out_of_memory+0x9d5/0x1790 [ 48.264527] ? oom_killer_disable+0x310/0x310 [ 48.268991] ? mutex_trylock+0x23a/0x2d0 [ 48.273020] ? __alloc_pages_slowpath+0xf63/0x2cc0 [ 48.277917] ? __lock_is_held+0xb6/0x140 [ 48.281942] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 48.287370] __alloc_pages_slowpath+0x1ce4/0x2cc0 [ 48.292189] ? trace_hardirqs_on+0xd/0x10 [ 48.296317] ? warn_alloc+0x2b0/0x2b0 [ 48.300081] ? lock_downgrade+0x980/0x980 [ 48.304208] ? radix_tree_lookup_slot+0x99/0xe0 [ 48.308853] ? find_get_entry+0x53c/0x9e0 [ 48.312967] ? print_irqtrace_events+0x270/0x270 [ 48.317704] ? switched_to_fair+0xb0/0xb0 [ 48.321827] ? __lock_acquire+0x664/0x3e00 [ 48.326057] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 48.331921] ? __might_sleep+0x95/0x190 [ 48.335864] __alloc_pages_nodemask+0x9fb/0xd80 [ 48.340507] ? __alloc_pages_slowpath+0x2cc0/0x2cc0 [ 48.345488] ? add_to_page_cache_lru+0x510/0x510 [ 48.350223] ? check_noncircular+0x20/0x20 [ 48.354423] ? check_noncircular+0x20/0x20 [ 48.358627] ? find_held_lock+0x35/0x1d0 [ 48.362658] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 48.367399] alloc_pages_current+0xb6/0x1e0 [ 48.371690] __page_cache_alloc+0x334/0x500 [ 48.375983] ? rcu_read_lock_held+0xa9/0xc0 [ 48.380276] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 48.387611] filemap_fault+0xf34/0x1ca0 [ 48.391553] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 48.396725] ? __lock_page_or_retry+0x4f0/0x4f0 [ 48.401359] ? lock_downgrade+0x980/0x980 [ 48.405480] ? filemap_map_pages+0x942/0x15d0 [ 48.409953] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 48.415029] ? find_get_entries_tag+0xeb0/0xeb0 [ 48.419669] ? print_irqtrace_events+0x270/0x270 [ 48.424393] ? remove_wait_queue+0x1b4/0x350 [ 48.428771] ? check_noncircular+0x20/0x20 [ 48.432969] ? print_irqtrace_events+0x270/0x270 [ 48.437687] ? add_wait_queue+0x290/0x290 [ 48.441819] ? print_irqtrace_events+0x270/0x270 [ 48.446539] ? print_irqtrace_events+0x270/0x270 [ 48.451262] ? fput+0xd2/0x140 [ 48.454423] ? print_irqtrace_events+0x270/0x270 [ 48.459156] ? lock_acquire+0x1d5/0x580 [ 48.463096] ? lock_acquire+0x1d5/0x580 [ 48.467038] ? ext4_filemap_fault+0x7a/0xad [ 48.471327] ? __lock_acquire+0x664/0x3e00 [ 48.475531] ? lock_release+0xa40/0xa40 [ 48.479472] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 48.485326] ? rcu_note_context_switch+0x710/0x710 [ 48.490225] ? __might_sleep+0x95/0x190 [ 48.494170] ? down_read+0x96/0x150 [ 48.497773] ? ext4_filemap_fault+0x7a/0xad [ 48.502065] ? __down_interruptible+0x6b0/0x6b0 [ 48.506702] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 48.511868] ext4_filemap_fault+0x82/0xad [ 48.516002] __do_fault+0xeb/0x315 [ 48.519510] ? pte_offset_kernel+0xc7/0xc7 [ 48.523712] ? set_fd_set.part.0+0x70/0x70 [ 48.527926] ? check_noncircular+0x20/0x20 [ 48.532129] ? check_noncircular+0x20/0x20 [ 48.536510] __handle_mm_fault+0x1d8f/0x3ce0 [ 48.540891] ? __pmd_alloc+0x4e0/0x4e0 [ 48.544743] ? find_held_lock+0x35/0x1d0 [ 48.548774] ? find_held_lock+0x35/0x1d0 [ 48.552813] ? handle_mm_fault+0x2a0/0x930 [ 48.557014] ? lock_downgrade+0x980/0x980 [ 48.561153] handle_mm_fault+0x38f/0x930 [ 48.565180] ? down_read_trylock+0xdb/0x170 [ 48.569470] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 48.574014] ? vmacache_find+0x5f/0x280 [ 48.577960] ? find_vma+0x30/0x150 [ 48.581481] __do_page_fault+0x5c9/0xc90 [ 48.585520] ? mm_fault_error+0x2c0/0x2c0 [ 48.589645] do_page_fault+0xee/0x720 [ 48.593412] ? __do_page_fault+0xc90/0xc90 [ 48.597617] ? SyS_select+0x1ae/0x230 [ 48.601390] ? core_sys_select+0x960/0x960 [ 48.605594] ? entry_SYSCALL_64_fastpath+0x55/0xa0 [ 48.610489] ? page_fault+0x36/0x60 [ 48.614086] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 48.618897] ? page_fault+0x36/0x60 [ 48.622492] page_fault+0x4c/0x60 [ 48.625910] RIP: 0033:0x7fb811b9edd3 [ 48.629587] RSP: 002b:00007ffc20905038 EFLAGS: 00010246 [ 48.634915] RAX: 0000000000000000 RBX: 00007ffc209051e0 RCX: 00007fb811b9edd3 [ 48.642151] RDX: 0000000000000000 RSI: 00007ffc20905390 RDI: 000000000000000b [ 48.649389] RBP: 00007ffc20905390 R08: 00007ffc20905410 R09: 0000000000000001 [ 48.656626] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 48.663864] R13: 00007ffc20905770 R14: 0000000000000000 R15: 0000000000000000 [ 48.671209] Mem-Info: [ 48.673755] active_anon:1942 inactive_anon:64 isolated_anon:0 [ 48.673755] active_file:25 inactive_file:9 isolated_file:24 [ 48.673755] unevictable:0 dirty:0 writeback:0 unstable:0 [ 48.673755] slab_reclaimable:7317 slab_unreclaimable:82598 [ 48.673755] mapped:2 shmem:70 pagetables:305 bounce:0 [ 48.673755] free:19686 free_pcp:95 free_cma:0 [ 48.705780] Node 0 active_anon:7768kB inactive_anon:256kB active_file:100kB inactive_file:36kB unevictable:0kB isolated(anon):0kB isolated(file):96kB mapped:8kB dirty:0kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 48.732424] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB 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 [ 48.758861] lowmem_reserve[]: 0 2870 6381 6381 [ 48.763453] Node 0 DMA32 free:40152kB min:30328kB low:37908kB high:45488kB active_anon:28kB inactive_anon:4kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2942308kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:76kB local_pcp:76kB free_cma:0kB [ 48.791258] lowmem_reserve[]: 0 0 3510 3510 [ 48.796298] Node 0 Normal free:22684kB min:37084kB low:46352kB high:55620kB active_anon:7740kB inactive_anon:252kB active_file:160kB inactive_file:0kB unevictable:0kB writepending:0kB present:4718592kB managed:3594624kB mlocked:0kB kernel_stack:3040kB pagetables:1220kB bounce:0kB free_pcp:304kB local_pcp:204kB free_cma:0kB [ 48.825766] lowmem_reserve[]: 0 0 0 0 [ 48.830469] 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 [ 48.844627] Node 0 DMA32: 6*4kB (UME) 6*8kB (UME) 5*16kB (UME) 4*32kB (ME) 3*64kB (M) 6*128kB (UME) 6*256kB (UME) 5*512kB (UME) 4*1024kB (UME) 3*2048kB (ME) 6*4096kB (M) = 40152kB [ 48.861790] Node 0 Normal: 311*4kB (M) 270*8kB (UM) 191*16kB (UM) 119*32kB (UM) 58*64kB (ME) 10*128kB (M) 7*256kB (M) 3*512kB (M) 0*1024kB 2*2048kB (M) 0*4096kB = 22684kB [ 48.879379] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 48.888939] 104 total pagecache pages [ 48.893594] 0 pages in swap cache [ 48.897931] Swap cache stats: add 0, delete 0, find 0/0 [ 48.904229] Free swap = 0kB [ 48.908185] Total swap = 0kB [ 48.912148] 1965979 pages RAM [ 48.916196] 0 pages HighMem/MovableOnly [ 48.921104] 327769 pages reserved [ 48.925394] Unreclaimable slab info: [ 48.929796] Name Used Total [ 48.936282] hashtab_node 118KB 119KB [ 48.942251] ebitmap_node 382KB 385KB [ 48.948202] avtab_node 1012KB 1017KB [ 48.954102] TIPC 1KB 7KB [ 48.959955] SCTPv6 2KB 4KB [ 48.965888] DCCPv6 2KB 7KB [ 48.971857] DCCP 2KB 6KB [ 48.977857] fib6_nodes 0KB 4KB [ 48.983840] ip6_dst_cache 6KB 7KB [ 48.989849] RAWv6 9KB 13KB [ 48.995836] UDPv6 12KB 14KB [ 49.001836] TCPv6 2KB 5KB [ 49.007855] sd_ext_cdb 0KB 3KB [ 49.013843] scsi_sense_cache 93KB 136KB [ 49.019840] virtio_scsi_cmd 16KB 16KB [ 49.026104] sgpool-128 8KB 8KB [ 49.031947] sgpool-64 4KB 6KB [ 49.037306] sgpool-32 112KB 118KB [ 49.042653] sgpool-16 38KB 41KB [ 49.047996] sgpool-8 191KB 195KB [ 49.053344] cfq_io_cq 15KB 19KB [ 49.058736] cfq_queue 24KB 30KB [ 49.064088] mqueue_inode_cache 1KB 7KB [ 49.069522] nfs_commit_data 3KB 7KB [ 49.074867] nfs_write_data 34KB 37KB [ 49.080211] jbd2_inode 1KB 3KB [ 49.085562] ext4_system_zone 0KB 3KB [ 49.090914] bio-1 1KB 3KB [ 49.096263] rpc_buffers 17KB 19KB [ 49.101612] rpc_tasks 2KB 3KB [ 49.106959] UNIX 780KB 780KB [ 49.112304] tcp_bind_bucket 0KB 4KB [ 49.117650] ip_fib_trie 0KB 3KB [ 49.122994] ip_fib_alias 0KB 3KB [ 49.128348] ip_dst_cache 3KB 4KB [ 49.133693] RAW 5KB 7KB [ 49.139058] UDP 29KB 39KB [ 49.144414] TCP 7KB 7KB [ 49.149758] hugetlbfs_inode_cache 1KB 7KB [ 49.155856] eventpoll_pwq 10KB 11KB [ 49.161202] eventpoll_epi 18KB 23KB [ 49.166547] inotify_inode_mark 3KB 7KB [ 49.171979] request_queue 34KB 68KB [ 49.177323] blkdev_ioc 21KB 23KB [ 49.182671] bio-0 324KB 330KB [ 49.188023] biovec-(1<<(21-12)) 453KB 453KB [ 49.193563] biovec-64 156KB 157KB [ 49.198905] biovec-16 18KB 22KB [ 49.204262] bio_integrity_payload 0KB 4KB [ 49.209956] khugepaged_mm_slot 0KB 3KB [ 49.215395] uid_cache 0KB 3KB [ 49.220750] dmaengine-unmap-2 0KB 3KB [ 49.226103] audit_buffer 0KB 3KB [ 49.231450] skbuff_fclone_cache 135KB 138KB [ 49.236968] skbuff_head_cache 1620KB 1623KB [ 49.242317] configfs_dir_cache 0KB 4KB [ 49.247752] file_lock_cache 160KB 162KB [ 49.253096] file_lock_ctx 1KB 3KB [ 49.258447] fsnotify_mark_connector 2KB 3KB [ 49.264315] shmem_inode_cache 1045KB 1046KB [ 49.269660] task_delay_info 318KB 320KB [ 49.275021] sigqueue 367KB 374KB [ 49.280365] kernfs_node_cache 2288KB 2295KB [ 49.285710] mnt_cache 15KB 16KB [ 49.291465] filp 8251KB 8707KB [ 49.296810] names_cache 109951KB 109981KB [ 49.302159] avc_node 37KB 39KB [ 49.307503] selinux_file_security 413KB 488KB [ 49.313192] selinux_inode_security 1954KB 1956KB [ 49.318969] key_jar 3KB 7KB [ 49.324314] nsproxy 0KB 3KB [ 49.329656] vm_area_struct 18663KB 18678KB [ 49.335000] mm_struct 4518KB 4531KB [ 49.340359] fs_cache 424KB 432KB [ 49.345712] files_cache 1592KB 1597KB [ 49.351072] signal_cache 2538KB 2544KB [ 49.356426] sighand_cache 212KB 319KB [ 49.361780] task_struct 10835KB 10835KB [ 49.367127] cred_jar 2355KB 2360KB [ 49.372472] anon_vma_chain 7823KB 7835KB [ 49.377815] anon_vma 123KB 338KB [ 49.383161] pid 221KB 228KB [ 49.388503] Acpi-Operand 106KB 170KB [ 49.393854] Acpi-Namespace 19KB 23KB [ 49.399198] numa_policy 0KB 3KB [ 49.404539] debug_objects_cache 529KB 531KB [ 49.410060] trace_event_file 145KB 147KB [ 49.415409] ftrace_event_field 257KB 259KB [ 49.420838] pool_workqueue 24KB 28KB [ 49.426592] page->ptl 3098KB 3107KB [ 49.431949] kmalloc-262144 1032KB 1032KB [ 49.437292] kmalloc-131072 650KB 650KB [ 49.442634] kmalloc-65536 264KB 264KB [ 49.447987] kmalloc-32768 825KB 825KB [ 49.453335] kmalloc-16384 181KB 181KB [ 49.458684] kmalloc-8192 519KB 519KB [ 49.464029] kmalloc-4096 6345KB 6375KB [ 49.469373] kmalloc-2048 4796KB 4800KB [ 49.474723] kmalloc-1024 2856KB 2858KB [ 49.480069] kmalloc-512 2775KB 2782KB [ 49.485427] kmalloc-256 1897KB 2400KB [ 49.490772] kmalloc-128 406KB 507KB [ 49.496118] kmalloc-96 2068KB 2072KB [ 49.501461] kmalloc-64 2475KB 2476KB [ 49.506802] kmalloc-32 2388KB 2401KB [ 49.512146] kmalloc-192 911KB 912KB [ 49.517490] kmem_cache 100KB 105KB [ 49.522834] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 49.531409] [ 1823] 0 1823 5385 182 86016 0 -1000 udevd [ 49.539552] [ 3502] 0 3502 14265 164 126976 0 0 rsyslogd [ 49.548385] [ 3557] 0 3557 4725 52 81920 0 0 cron [ 49.556432] [ 3560] 0 3560 3736 44 69632 0 0 mcstransd [ 49.564928] [ 3586] 0 3586 12490 152 135168 0 -1000 sshd [ 49.572986] [ 3627] 0 3627 3694 40 73728 0 0 getty [ 49.581131] [ 3628] 0 3628 3694 41 77824 0 0 getty [ 49.589274] [ 3629] 0 3629 3694 41 73728 0 0 getty [ 49.597416] [ 3630] 0 3630 3694 40 77824 0 0 getty [ 49.605558] [ 3631] 0 3631 3694 41 77824 0 0 getty [ 49.613693] [ 3632] 0 3632 3694 39 77824 0 0 getty [ 49.621830] [ 3633] 0 3633 3649 40 77824 0 0 getty [ 49.629969] [ 3638] 0 3638 5681 455 86016 0 -1000 udevd [ 49.638122] [ 3639] 0 3639 5681 455 86016 0 -1000 udevd [ 49.646260] [ 3655] 0 3655 17821 198 188416 0 0 sshd [ 49.654311] [ 3657] 0 3657 280 1 32768 0 0 syzkaller610764 [ 49.663322] [ 3658] 0 3658 4375 0 32768 0 0 syzkaller610764 [ 49.672333] [ 3659] 0 3659 4375 0 32768 0 0 syzkaller610764 [ 49.681337] [ 3660] 0 3660 4375 0 32768 0 0 syzkaller610764 [ 49.690341] [ 3661] 0 3661 4375 0 32768 0 0 syzkaller610764 [ 49.699345] [ 3662] 0 3662 4375 0 32768 0 0 syzkaller610764 [ 49.708353] [ 3663] 0 3663 4375 0 32768 0 0 syzkaller610764 [ 49.717358] [ 3664] 0 3664 4375 0 32768 0 0 syzkaller610764 [ 49.726364] [ 3665] 0 3665 4375 0 32768 0 0 syzkaller610764 [ 49.735371] Out of memory: Kill process 3655 (sshd) score 0 or sacrifice child [ 49.743115] Killed process 3657 (syzkaller610764) total-vm:1120kB, anon-rss:4kB, file-rss:0kB, shmem-rss:0kB [ 49.767446] rsyslogd invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=0 [ 49.778857] rsyslogd cpuset=/ mems_allowed=0 [ 49.783267] CPU: 0 PID: 3505 Comm: rsyslogd Not tainted 4.15.0-rc7-mm1+ #56 [ 49.790331] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.799649] Call Trace: [ 49.802207] dump_stack+0x194/0x257 [ 49.805804] ? arch_local_irq_restore+0x53/0x53 [ 49.810441] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 49.815605] dump_header+0x28c/0xe2b [ 49.819292] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 49.824451] ? pagefault_out_of_memory+0x145/0x145 [ 49.829349] ? __lock_acquire+0x664/0x3e00 [ 49.833552] ? print_irqtrace_events+0x270/0x270 [ 49.838281] ? check_noncircular+0x20/0x20 [ 49.842481] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 49.847639] ? check_noncircular+0x20/0x20 [ 49.851839] ? print_irqtrace_events+0x270/0x270 [ 49.856565] ? reacquire_held_locks+0x1f9/0x3e0 [ 49.861201] ? reacquire_held_locks+0x1f9/0x3e0 [ 49.865842] ? check_noncircular+0x20/0x20 [ 49.870047] ? task_will_free_mem+0x252/0xaa0 [ 49.874511] ? check_noncircular+0x20/0x20 [ 49.878721] ? print_irqtrace_events+0x270/0x270 [ 49.883463] ? ___ratelimit+0x30d/0x630 [ 49.887421] ? lock_downgrade+0x980/0x980 [ 49.891558] ? lock_release+0xa40/0xa40 [ 49.895527] ? mark_held_locks+0xaf/0x100 [ 49.899661] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 49.904744] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 49.909741] ? trace_hardirqs_on+0xd/0x10 [ 49.913880] ? ___ratelimit+0x95/0x630 [ 49.917746] ? idr_get_free_cmn+0xfd0/0xfd0 [ 49.922045] ? check_noncircular+0x20/0x20 [ 49.926259] oom_kill_process+0x81b/0x9f0 [ 49.930381] ? lock_release+0xa40/0xa40 [ 49.934329] ? oom_kill_memcg_member+0x20/0x20 [ 49.938884] ? oom_evaluate_task+0x480/0x480 [ 49.943283] ? out_of_memory+0xe1c/0x1790 [ 49.947416] ? lock_downgrade+0x980/0x980 [ 49.951555] ? lock_release+0xa40/0xa40 [ 49.955514] ? find_next_bit+0xcc/0x100 [ 49.959488] ? oom_evaluate_task+0x284/0x480 [ 49.963878] out_of_memory+0x9d5/0x1790 [ 49.967846] ? oom_killer_disable+0x310/0x310 [ 49.972321] ? mutex_trylock+0x23a/0x2d0 [ 49.976349] ? __alloc_pages_slowpath+0xf63/0x2cc0 [ 49.981255] ? __lock_is_held+0xb6/0x140 [ 49.985301] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 49.990745] __alloc_pages_slowpath+0x1ce4/0x2cc0 [ 49.995583] ? trace_hardirqs_on+0xd/0x10 [ 49.999747] ? warn_alloc+0x2b0/0x2b0 [ 50.003532] ? lock_downgrade+0x980/0x980 [ 50.007678] ? radix_tree_lookup_slot+0x99/0xe0 [ 50.012337] ? find_get_entry+0x53c/0x9e0 [ 50.016474] ? __lock_acquire+0x664/0x3e00 [ 50.020706] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 50.026574] ? __might_sleep+0x95/0x190 [ 50.030526] __alloc_pages_nodemask+0x9fb/0xd80 [ 50.035187] ? __alloc_pages_slowpath+0x2cc0/0x2cc0 [ 50.040188] ? add_to_page_cache_lru+0x510/0x510 [ 50.044922] ? check_noncircular+0x20/0x20 [ 50.049132] ? check_noncircular+0x20/0x20 [ 50.053363] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 50.058111] alloc_pages_current+0xb6/0x1e0 [ 50.062408] __page_cache_alloc+0x334/0x500 [ 50.066697] ? rcu_read_lock_held+0xa9/0xc0 [ 50.070988] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 50.078947] filemap_fault+0xf34/0x1ca0 [ 50.082895] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 50.088066] ? __lock_page_or_retry+0x4f0/0x4f0 [ 50.092709] ? filemap_map_pages+0x942/0x15d0 [ 50.097201] ? find_get_entries_tag+0xeb0/0xeb0 [ 50.101859] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 50.107030] ? check_noncircular+0x20/0x20 [ 50.111258] ? print_irqtrace_events+0x270/0x270 [ 50.115994] ? print_irqtrace_events+0x270/0x270 [ 50.120716] ? print_irqtrace_events+0x270/0x270 [ 50.125474] ? lock_acquire+0x1d5/0x580 [ 50.129426] ? lock_acquire+0x1d5/0x580 [ 50.133379] ? ext4_filemap_fault+0x7a/0xad [ 50.137686] ? __lock_acquire+0x664/0x3e00 [ 50.141897] ? lock_release+0xa40/0xa40 [ 50.145845] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 50.151717] ? rcu_note_context_switch+0x710/0x710 [ 50.156626] ? __might_sleep+0x95/0x190 [ 50.160573] ? down_read+0x96/0x150 [ 50.164166] ? ext4_filemap_fault+0x7a/0xad [ 50.168455] ? __down_interruptible+0x6b0/0x6b0 [ 50.173115] ext4_filemap_fault+0x82/0xad [ 50.177249] __do_fault+0xeb/0x315 [ 50.180777] ? pte_offset_kernel+0xc7/0xc7 [ 50.184980] ? lock_release+0xa40/0xa40 [ 50.188925] ? compat_start_thread+0x80/0x80 [ 50.193308] ? do_raw_spin_trylock+0x190/0x190 [ 50.197870] ? _raw_spin_unlock_irq+0x27/0x70 [ 50.202420] ? check_noncircular+0x20/0x20 [ 50.206634] __handle_mm_fault+0x1d8f/0x3ce0 [ 50.211024] ? __pmd_alloc+0x4e0/0x4e0 [ 50.214895] ? find_held_lock+0x35/0x1d0 [ 50.218932] ? handle_mm_fault+0x2a0/0x930 [ 50.223146] ? lock_downgrade+0x980/0x980 [ 50.227316] handle_mm_fault+0x38f/0x930 [ 50.231354] ? down_read_trylock+0xdb/0x170 [ 50.235663] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 50.240217] ? vmacache_find+0x5f/0x280 [ 50.244160] ? find_vma+0x30/0x150 [ 50.247683] __do_page_fault+0x5c9/0xc90 [ 50.251724] ? vfs_copy_file_range+0x940/0x940 [ 50.256305] ? mm_fault_error+0x2c0/0x2c0 [ 50.260431] ? avc_policy_seqno+0x9/0x20 [ 50.264465] ? exit_to_usermode_loop+0x8c/0x2f0 [ 50.269117] do_page_fault+0xee/0x720 [ 50.272892] ? trace_hardirqs_off+0xd/0x10 [ 50.277102] ? __do_page_fault+0xc90/0xc90 [ 50.281321] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 50.286838] ? fput+0xd2/0x140 [ 50.290004] ? retint_user+0x18/0x18 [ 50.293700] ? page_fault+0x36/0x60 [ 50.297313] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 50.302134] ? page_fault+0x36/0x60 [ 50.305740] page_fault+0x4c/0x60 [ 50.309175] RIP: 0033:0x7f0cab2e5190 [ 50.312859] RSP: 002b:00007f0ca8889d08 EFLAGS: 00010202 [ 50.318191] RAX: 0000000000000000 RBX: 00000000019b7120 RCX: 0000000000000001 [ 50.325432] RDX: 0000000000000000 RSI: 00007f0ca8889d14 RDI: 00000000019b6b80 [ 50.332675] RBP: 0000000000000001 R08: 00007f0ca9ebc50c R09: 00007f0caac68e00 [ 50.339913] R10: 0000000000000011 R11: 00007f0caac9aa50 R12: 00000000019cd2a0 [ 50.347155] R13: 0000000000000009 R14: 0000000000000f65 R15: 00007f0caa0be62e [ 50.354514] Mem-Info: [ 50.357292] active_anon:1932 inactive_anon:64 isolated_anon:0 [ 50.357292] active_file:33 inactive_file:0 isolated_file:0 [ 50.357292] unevictable:0 dirty:0 writeback:0 unstable:0 [ 50.357292] slab_reclaimable:7317 slab_unreclaimable:82598 [ 50.357292] mapped:2 shmem:70 pagetables:301 bounce:0 [ 50.357292] free:19694 free_pcp:113 free_cma:0 [ 50.390334] Node 0 active_anon:7728kB inactive_anon:256kB active_file:132kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 50.417592] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB 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 [ 50.445389] lowmem_reserve[]: 0 2870 6381 6381 [ 50.450935] Node 0 DMA32 free:40152kB min:30328kB low:37908kB high:45488kB active_anon:28kB inactive_anon:4kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2942308kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:76kB local_pcp:76kB free_cma:0kB [ 50.478903] lowmem_reserve[]: 0 0 3510 3510 [ 50.484187] Node 0 Normal free:22716kB min:37084kB low:46352kB high:55620kB active_anon:7700kB inactive_anon:252kB active_file:136kB inactive_file:96kB unevictable:0kB writepending:0kB present:4718592kB managed:3594624kB mlocked:0kB kernel_stack:3008kB pagetables:1204kB bounce:0kB free_pcp:376kB local_pcp:204kB free_cma:0kB [ 50.513954] lowmem_reserve[]: 0 0 0 0 [ 50.518476] 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 [ 50.532114] Node 0 DMA32: 6*4kB (UME) 6*8kB (UME) 5*16kB (UME) 4*32kB (ME) 3*64kB (M) 6*128kB (UME) 6*256kB (UME) 5*512kB (UME) 4*1024kB (UME) 3*2048kB (ME) 6*4096kB (M) = 40152kB [ 50.548341] Node 0 Normal: 311*4kB (M) 270*8kB (UM) 191*16kB (UM) 120*32kB (UM) 58*64kB (ME) 10*128kB (M) 7*256kB (M) 3*512kB (M) 0*1024kB 2*2048kB (M) 0*4096kB = 22716kB [ 50.563821] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 50.572405] 104 total pagecache pages [ 50.576223] 0 pages in swap cache [ 50.579687] Swap cache stats: add 0, delete 0, find 0/0 [ 50.585045] Free swap = 0kB [ 50.588068] Total swap = 0kB [ 50.591089] 1965979 pages RAM [ 50.594195] 0 pages HighMem/MovableOnly [ 50.598158] 327769 pages reserved [ 50.601611] Unreclaimable slab info: [ 50.605330] Name Used Total [ 50.610868] hashtab_node 118KB 119KB [ 50.617234] ebitmap_node 382KB 385KB [ 50.622619] avtab_node 1012KB 1017KB [ 50.628301] TIPC 1KB 7KB [ 50.634546] SCTPv6 2KB 4KB [ 50.640893] DCCPv6 2KB 7KB [ 50.647228] DCCP 2KB 6KB [ 50.653226] fib6_nodes 0KB 4KB [ 50.659553] ip6_dst_cache 5KB 7KB [ 50.665847] RAWv6 9KB 13KB [ 50.671880] UDPv6 12KB 14KB [ 50.677951] TCPv6 2KB 5KB [ 50.683991] sd_ext_cdb 0KB 3KB [ 50.690097] scsi_sense_cache 93KB 136KB [ 50.695948] virtio_scsi_cmd 16KB 16KB [ 50.702240] sgpool-128 8KB 8KB [ 50.708183] sgpool-64 4KB 6KB [ 50.714823] sgpool-32 112KB 118KB [ 50.721183] sgpool-16 38KB 41KB [ 50.727062] sgpool-8 191KB 195KB [ 50.732908] cfq_io_cq 15KB 19KB [ 50.738745] cfq_queue 24KB 30KB [ 50.744584] mqueue_inode_cache 1KB 7KB [ 50.750523] nfs_commit_data 3KB 7KB [ 50.756092] nfs_write_data 34KB 37KB [ 50.761477] jbd2_inode 1KB 3KB [ 50.766832] ext4_system_zone 0KB 3KB [ 50.772939] bio-1 1KB 3KB [ 50.778809] rpc_buffers 17KB 19KB [ 50.784645] rpc_tasks 2KB 3KB [ 50.790513] UNIX 780KB 780KB [ 50.796081] tcp_bind_bucket 0KB 4KB [ 50.801449] ip_fib_trie 0KB 3KB [ 50.806814] ip_fib_alias 0KB 3KB [ 50.812179] ip_dst_cache 3KB 4KB [ 50.817536] RAW 5KB 7KB [ 50.822885] UDP 29KB 39KB [ 50.828907] TCP 7KB 7KB [ 50.835243] hugetlbfs_inode_cache 1KB 7KB [ 50.841859] eventpoll_pwq 10KB 11KB [ 50.848172] eventpoll_epi 18KB 23KB [ 50.854127] inotify_inode_mark 3KB 7KB [ 50.860855] request_queue 34KB 68KB [ 50.866234] blkdev_ioc 21KB 23KB [ 50.871604] bio-0 324KB 330KB [ 50.876973] biovec-(1<<(21-12)) 453KB 453KB [ 50.882614] biovec-64 156KB 157KB [ 50.887989] biovec-16 18KB 22KB [ 50.893362] bio_integrity_payload 0KB 4KB [ 50.899079] khugepaged_mm_slot 0KB 3KB [ 50.905259] uid_cache 0KB 3KB [ 50.910725] dmaengine-unmap-2 0KB 3KB [ 50.916094] audit_buffer 0KB 3KB [ 50.921462] skbuff_fclone_cache 135KB 138KB [ 50.927040] skbuff_head_cache 1620KB 1623KB [ 50.932408] configfs_dir_cache 0KB 4KB [ 50.937864] file_lock_cache 160KB 162KB [ 50.943784] file_lock_ctx 1KB 3KB [ 50.950886] fsnotify_mark_connector 2KB 3KB [ 50.958519] shmem_inode_cache 1045KB 1046KB [ 50.965133] task_delay_info 318KB 320KB [ 50.971379] sigqueue 371KB 374KB [ 50.977633] kernfs_node_cache 2288KB 2295KB [ 50.983863] mnt_cache 15KB 16KB [ 50.990167] filp 8250KB 8707KB [ 50.996421] names_cache 109951KB 109981KB [ 51.002682] avc_node 37KB 39KB [ 51.008927] selinux_file_security 413KB 488KB [ 51.015497] selinux_inode_security 1954KB 1956KB [ 51.022370] key_jar 3KB 7KB [ 51.028621] nsproxy 0KB 3KB [ 51.035598] vm_area_struct 18663KB 18678KB [ 51.041858] mm_struct 4518KB 4531KB [ 51.047930] fs_cache 424KB 432KB [ 51.053304] files_cache 1592KB 1597KB [ 51.058680] signal_cache 2538KB 2544KB [ 51.064047] sighand_cache 212KB 319KB [ 51.069418] task_struct 10835KB 10835KB [ 51.074789] cred_jar 2355KB 2360KB [ 51.080163] anon_vma_chain 7823KB 7835KB [ 51.085535] anon_vma 123KB 338KB [ 51.090895] pid 221KB 228KB [ 51.096259] Acpi-Operand 106KB 170KB [ 51.101636] Acpi-Namespace 19KB 23KB [ 51.107097] numa_policy 0KB 3KB [ 51.112476] debug_objects_cache 529KB 531KB [ 51.118032] trace_event_file 145KB 147KB [ 51.123405] ftrace_event_field 257KB 259KB [ 51.128945] pool_workqueue 24KB 28KB [ 51.134328] page->ptl 3098KB 3107KB [ 51.139723] kmalloc-262144 1032KB 1032KB [ 51.145097] kmalloc-131072 650KB 650KB [ 51.150463] kmalloc-65536 264KB 264KB [ 51.155845] kmalloc-32768 825KB 825KB [ 51.161216] kmalloc-16384 181KB 181KB [ 51.166587] kmalloc-8192 519KB 519KB [ 51.172736] kmalloc-4096 6345KB 6375KB [ 51.178107] kmalloc-2048 4796KB 4800KB [ 51.183483] kmalloc-1024 2856KB 2858KB [ 51.188867] kmalloc-512 2775KB 2782KB [ 51.194234] kmalloc-256 1896KB 2400KB [ 51.199603] kmalloc-128 406KB 507KB [ 51.204990] kmalloc-96 2068KB 2072KB [ 51.210359] kmalloc-64 2475KB 2476KB [ 51.215727] kmalloc-32 2388KB 2401KB [ 51.221096] kmalloc-192 911KB 912KB [ 51.226464] kmem_cache 100KB 105KB [ 51.231830] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 51.240438] [ 1823] 0 1823 5385 182 86016 0 -1000 udevd [ 51.248597] [ 3502] 0 3502 14265 164 126976 0 0 rsyslogd [ 51.257056] [ 3557] 0 3557 4725 52 81920 0 0 cron [ 51.265129] [ 3560] 0 3560 3736 44 69632 0 0 mcstransd [ 51.273632] [ 3586] 0 3586 12490 152 135168 0 -1000 sshd [ 51.281707] [ 3627] 0 3627 3694 40 73728 0 0 getty [ 51.289865] [ 3628] 0 3628 3694 41 77824 0 0 getty [ 51.298032] [ 3629] 0 3629 3694 41 73728 0 0 getty [ 51.306218] [ 3630] 0 3630 3694 40 77824 0 0 getty [ 51.314383] [ 3631] 0 3631 3694 41 77824 0 0 getty [ 51.322546] [ 3632] 0 3632 3694 39 77824 0 0 getty [ 51.330723] [ 3633] 0 3633 3649 40 77824 0 0 getty [ 51.338884] [ 3638] 0 3638 5681 455 86016 0 -1000 udevd [ 51.347053] [ 3639] 0 3639 5681 455 86016 0 -1000 udevd [ 51.355214] [ 3655] 0 3655 17821 198 188416 0 0 sshd [ 51.363293] [ 3658] 0 3658 4375 0 32768 0 0 syzkaller610764 [ 51.372322] [ 3659] 0 3659 4375 0 32768 0 0 syzkaller610764 [ 51.381364] [ 3660] 0 3660 4375 0 32768 0 0 syzkaller610764 [ 51.390403] [ 3661] 0 3661 4375 0 32768 0 0 syzkaller610764 [ 51.399433] [ 3662] 0 3662 4375 0 32768 0 0 syzkaller610764 [ 51.408464] [ 3663] 0 3663 4375 0 32768 0 0 syzkaller610764 [ 51.417489] [ 3664] 0 3664 4375 0 32768 0 0 syzkaller610764 [ 51.426515] [ 3665] 0 3665 4375 0 32768 0 0 syzkaller610764 [ 51.435538] Out of memory: Kill process 3655 (sshd) score 0 or sacrifice child [ 51.442953] Killed process 3655 (sshd) total-vm:71284kB, anon-rss:788kB, file-rss:0kB, shmem-rss:4kB [ 51.455341] oom_reaper: reaped process 3655 (sshd), now anon-rss:0kB, file-rss:0kB, shmem-rss:4kB [ 51.465075] rsyslogd invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=0 [ 51.476441] rsyslogd cpuset=/ mems_allowed=0 [ 51.480884] CPU: 1 PID: 3505 Comm: rsyslogd Not tainted 4.15.0-rc7-mm1+ #56 [ 51.487964] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.497297] Call Trace: [ 51.499876] dump_stack+0x194/0x257 [ 51.503491] ? arch_local_irq_restore+0x53/0x53 [ 51.508151] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 51.513342] dump_header+0x28c/0xe2b [ 51.517052] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 51.522235] ? pagefault_out_of_memory+0x145/0x145 [ 51.527146] ? __lock_acquire+0x664/0x3e00 [ 51.531366] ? print_irqtrace_events+0x270/0x270 [ 51.536120] ? check_noncircular+0x20/0x20 [ 51.540335] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 51.545507] ? check_noncircular+0x20/0x20 [ 51.550587] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 51.555349] ? reacquire_held_locks+0x1f9/0x3e0 [ 51.559999] ? reacquire_held_locks+0x1f9/0x3e0 [ 51.564651] ? check_noncircular+0x20/0x20 [ 51.568867] ? task_will_free_mem+0x252/0xaa0 [ 51.573343] ? check_noncircular+0x20/0x20 [ 51.577570] ? print_irqtrace_events+0x270/0x270 [ 51.582321] ? ___ratelimit+0x30d/0x630 [ 51.586281] ? lock_downgrade+0x980/0x980 [ 51.590414] ? lock_release+0xa40/0xa40 [ 51.594376] ? mark_held_locks+0xaf/0x100 [ 51.598510] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 51.603599] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 51.608593] ? trace_hardirqs_on+0xd/0x10 [ 51.612720] ? ___ratelimit+0x95/0x630 [ 51.616593] ? idr_get_free_cmn+0xfd0/0xfd0 [ 51.620891] ? check_noncircular+0x20/0x20 [ 51.625121] oom_kill_process+0x81b/0x9f0 [ 51.629253] ? lock_release+0xa40/0xa40 [ 51.633216] ? oom_kill_memcg_member+0x20/0x20 [ 51.637794] ? oom_evaluate_task+0x480/0x480 [ 51.642197] ? out_of_memory+0xe1c/0x1790 [ 51.646329] ? lock_downgrade+0x980/0x980 [ 51.650453] ? lock_release+0xa40/0xa40 [ 51.654399] ? find_next_bit+0xcc/0x100 [ 51.658373] ? oom_evaluate_task+0x284/0x480 [ 51.662760] out_of_memory+0x9d5/0x1790 [ 51.666727] ? oom_killer_disable+0x310/0x310 [ 51.671216] ? mutex_trylock+0x23a/0x2d0 [ 51.675779] ? __alloc_pages_slowpath+0xf63/0x2cc0 [ 51.680686] ? __lock_is_held+0xb6/0x140 [ 51.684725] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 51.690181] __alloc_pages_slowpath+0x1ce4/0x2cc0 [ 51.695018] ? trace_hardirqs_on+0xd/0x10 [ 51.699181] ? warn_alloc+0x2b0/0x2b0 [ 51.702964] ? lock_downgrade+0x980/0x980 [ 51.707108] ? radix_tree_lookup_slot+0x99/0xe0 [ 51.711783] ? find_get_entry+0x53c/0x9e0 [ 51.716037] ? __lock_acquire+0x664/0x3e00 [ 51.720306] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 51.726193] ? __might_sleep+0x95/0x190 [ 51.730162] __alloc_pages_nodemask+0x9fb/0xd80 [ 51.734825] ? __alloc_pages_slowpath+0x2cc0/0x2cc0 [ 51.739823] ? add_to_page_cache_lru+0x510/0x510 [ 51.744574] ? check_noncircular+0x20/0x20 [ 51.748787] ? check_noncircular+0x20/0x20 [ 51.753019] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 51.757789] alloc_pages_current+0xb6/0x1e0 [ 51.762101] __page_cache_alloc+0x334/0x500 [ 51.766412] ? rcu_read_lock_held+0xa9/0xc0 [ 51.770723] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 51.778082] filemap_fault+0xf34/0x1ca0 [ 51.782041] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 51.787229] ? __lock_page_or_retry+0x4f0/0x4f0 [ 51.791880] ? filemap_map_pages+0x942/0x15d0 [ 51.796373] ? find_get_entries_tag+0xeb0/0xeb0 [ 51.801035] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 51.806208] ? check_noncircular+0x20/0x20 [ 51.810433] ? print_irqtrace_events+0x270/0x270 [ 51.815168] ? print_irqtrace_events+0x270/0x270 [ 51.819897] ? print_irqtrace_events+0x270/0x270 [ 51.824658] ? lock_acquire+0x1d5/0x580 [ 51.828613] ? lock_acquire+0x1d5/0x580 [ 51.832568] ? ext4_filemap_fault+0x7a/0xad [ 51.836877] ? __lock_acquire+0x664/0x3e00 [ 51.841096] ? lock_release+0xa40/0xa40 [ 51.845050] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 51.850926] ? rcu_note_context_switch+0x710/0x710 [ 51.855849] ? __might_sleep+0x95/0x190 [ 51.859814] ? down_read+0x96/0x150 [ 51.863420] ? ext4_filemap_fault+0x7a/0xad [ 51.867724] ? __down_interruptible+0x6b0/0x6b0 [ 51.872392] ext4_filemap_fault+0x82/0xad [ 51.876530] __do_fault+0xeb/0x315 [ 51.880056] ? pte_offset_kernel+0xc7/0xc7 [ 51.884272] ? lock_release+0xa40/0xa40 [ 51.888233] ? compat_start_thread+0x80/0x80 [ 51.892621] ? do_raw_spin_trylock+0x190/0x190 [ 51.897190] ? _raw_spin_unlock_irq+0x27/0x70 [ 51.901665] ? check_noncircular+0x20/0x20 [ 51.905901] __handle_mm_fault+0x1d8f/0x3ce0 [ 51.910312] ? __pmd_alloc+0x4e0/0x4e0 [ 51.914198] ? find_held_lock+0x35/0x1d0 [ 51.918256] ? handle_mm_fault+0x2a0/0x930 [ 51.922477] ? lock_downgrade+0x980/0x980 [ 51.926649] handle_mm_fault+0x38f/0x930 [ 51.930688] ? down_read_trylock+0xdb/0x170 [ 51.934990] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 51.939545] ? vmacache_find+0x5f/0x280 [ 51.943509] ? find_vma+0x30/0x150 [ 51.947038] __do_page_fault+0x5c9/0xc90 [ 51.951080] ? vfs_copy_file_range+0x940/0x940 [ 51.955657] ? mm_fault_error+0x2c0/0x2c0 [ 51.959791] ? avc_policy_seqno+0x9/0x20 [ 51.963831] ? exit_to_usermode_loop+0x8c/0x2f0 [ 51.968481] do_page_fault+0xee/0x720 [ 51.972265] ? trace_hardirqs_off+0xd/0x10 [ 51.976482] ? __do_page_fault+0xc90/0xc90 [ 51.980703] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 51.986227] ? fput+0xd2/0x140 [ 51.989411] ? retint_user+0x18/0x18 [ 51.993111] ? page_fault+0x36/0x60 [ 51.996720] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 52.001551] ? page_fault+0x36/0x60 [ 52.005166] page_fault+0x4c/0x60 [ 52.008599] RIP: 0033:0x7f0cab2e5190 [ 52.012287] RSP: 002b:00007f0ca8889d08 EFLAGS: 00010202 [ 52.017630] RAX: 0000000000000000 RBX: 00000000019b7120 RCX: 0000000000000001 [ 52.024879] RDX: 0000000000000000 RSI: 00007f0ca8889d14 RDI: 00000000019b6b80 [ 52.032134] RBP: 0000000000000001 R08: 00007f0ca9ebc50c R09: 00007f0caac68e00 Connection to 10.128.15.208 closed by remote host. [ 52.039382] R10: 0000000000000011 R11: 00007f0caac9aa50 R12: 0