[....] Starting enhanced syslogd: rsyslogd[ 10.998745] audit: type=1400 audit(1515721487.530:5): avc: denied { syslog } for pid=3325 comm="rsyslogd" capability=34 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 [?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 16.525496] audit: type=1400 audit(1515721493.057:6): avc: denied { map } for pid=3464 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added '10.128.0.16' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program [ 24.660955] audit: type=1400 audit(1515721501.192:7): avc: denied { map } for pid=3479 comm="syzkaller557408" path="/root/syzkaller557408487" 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 [ 24.708115] audit: type=1400 audit(1515721501.198:8): avc: denied { map_create } for pid=3487 comm="syzkaller557408" 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 [ 30.804227] syzkaller557408 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 30.816654] syzkaller557408 cpuset=/ mems_allowed=0 [ 30.821866] CPU: 1 PID: 3481 Comm: syzkaller557408 Not tainted 4.15.0-rc7-mm1+ #53 [ 30.829553] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.838882] Call Trace: [ 30.841441] dump_stack+0x194/0x257 [ 30.845039] ? arch_local_irq_restore+0x53/0x53 [ 30.849679] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 30.854842] dump_header+0x28c/0xe2b [ 30.858536] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 30.863695] ? pagefault_out_of_memory+0x145/0x145 [ 30.868602] ? avc_has_perm_noaudit+0x1ed/0x520 [ 30.873242] ? avc_has_perm_noaudit+0x37e/0x520 [ 30.877879] ? check_noncircular+0x20/0x20 [ 30.882092] ? reacquire_held_locks+0x1f9/0x3e0 [ 30.886733] ? reacquire_held_locks+0x1f9/0x3e0 [ 30.891369] ? check_noncircular+0x20/0x20 [ 30.895572] ? task_will_free_mem+0x252/0xaa0 [ 30.900035] ? check_noncircular+0x20/0x20 [ 30.904241] ? print_irqtrace_events+0x270/0x270 [ 30.908973] ? ___ratelimit+0x30d/0x630 [ 30.912924] ? lock_downgrade+0x980/0x980 [ 30.917046] ? lock_release+0xa40/0xa40 [ 30.920994] ? mark_held_locks+0xaf/0x100 [ 30.925116] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 30.930191] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 30.935175] ? trace_hardirqs_on+0xd/0x10 [ 30.939292] ? ___ratelimit+0x95/0x630 [ 30.943147] ? idr_get_free_cmn+0xfd0/0xfd0 [ 30.947437] ? check_noncircular+0x20/0x20 [ 30.951647] oom_kill_process+0x81b/0x9f0 [ 30.955762] ? oom_badness+0xd1/0x980 [ 30.959533] ? lock_release+0xa40/0xa40 [ 30.963478] ? oom_kill_memcg_member+0x20/0x20 [ 30.968028] ? mark_held_locks+0xaf/0x100 [ 30.972149] ? oom_evaluate_task+0x480/0x480 [ 30.976536] ? out_of_memory+0xe1c/0x1790 [ 30.980652] ? lock_downgrade+0x980/0x980 [ 30.984769] ? lock_release+0xa40/0xa40 [ 30.988707] ? find_next_bit+0xcc/0x100 [ 30.992656] ? oom_evaluate_task+0x284/0x480 [ 30.997037] out_of_memory+0x9d5/0x1790 [ 31.000984] ? oom_killer_disable+0x310/0x310 [ 31.005452] ? mutex_trylock+0x23a/0x2d0 [ 31.009480] ? __alloc_pages_slowpath+0xf63/0x2cc0 [ 31.014376] ? __lock_is_held+0xb6/0x140 [ 31.018405] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 31.023832] __alloc_pages_slowpath+0x1ce4/0x2cc0 [ 31.028664] ? check_noncircular+0x17/0x20 [ 31.032865] ? warn_alloc+0x2b0/0x2b0 [ 31.037260] ? check_noncircular+0x20/0x20 [ 31.041463] ? check_preempt_wakeup+0x426/0xb20 [ 31.046104] ? print_irqtrace_events+0x270/0x270 [ 31.050846] ? lock_acquire+0x1d5/0x580 [ 31.054785] ? lock_acquire+0x1d5/0x580 [ 31.058729] ? __lock_acquire+0x664/0x3e00 [ 31.062940] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 31.068791] ? lock_release+0xa40/0xa40 [ 31.072755] ? __lock_is_held+0xb6/0x140 [ 31.076795] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 31.082654] ? __might_sleep+0x95/0x190 [ 31.086601] __alloc_pages_nodemask+0x9fb/0xd80 [ 31.091236] ? lock_release+0xa40/0xa40 [ 31.095181] ? __alloc_pages_slowpath+0x2cc0/0x2cc0 [ 31.100169] ? pcpu_chunk_refresh_hint+0x425/0x570 [ 31.105070] ? print_irqtrace_events+0x270/0x270 [ 31.109799] ? __lock_is_held+0xb6/0x140 [ 31.113837] ? find_next_bit+0xcc/0x100 [ 31.117784] pcpu_populate_chunk+0x1b3/0x880 [ 31.122158] ? find_next_bit+0x97/0x100 [ 31.126108] pcpu_alloc+0x978/0x10e0 [ 31.129798] ? pcpu_free_area+0xa00/0xa00 [ 31.133911] ? __pte_alloc_kernel+0x1bd/0x2a0 [ 31.138383] ? vmap_page_range_noflush+0x523/0x720 [ 31.143292] ? retint_kernel+0x10/0x10 [ 31.147156] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 31.152144] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 31.156874] ? retint_kernel+0x10/0x10 [ 31.160740] __alloc_percpu_gfp+0x27/0x30 [ 31.164866] array_map_alloc+0x778/0xa00 [ 31.168905] SyS_bpf+0x7f8/0x4400 [ 31.172330] ? perf_event_mmap+0x115/0x12a0 [ 31.177322] ? bpf_prog_get+0x20/0x20 [ 31.181093] ? perf_event_fork+0x30/0x30 [ 31.185129] ? __lock_is_held+0xb6/0x140 [ 31.189158] ? check_noncircular+0x20/0x20 [ 31.193359] ? vma_wants_writenotify+0x51/0x3b0 [ 31.197997] ? __handle_mm_fault+0x80e/0x3ce0 [ 31.202467] ? check_noncircular+0x20/0x20 [ 31.206665] ? __pmd_alloc+0x4e0/0x4e0 [ 31.210519] ? vma_link+0xe9/0x170 [ 31.214038] ? find_held_lock+0x35/0x1d0 [ 31.218073] ? handle_mm_fault+0x2a0/0x930 [ 31.222277] ? find_held_lock+0x35/0x1d0 [ 31.226316] ? __do_page_fault+0x5f7/0xc90 [ 31.230519] ? lock_downgrade+0x980/0x980 [ 31.234639] ? handle_mm_fault+0x476/0x930 [ 31.238841] ? down_read_trylock+0xdb/0x170 [ 31.243131] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 31.247678] ? vmacache_find+0x5f/0x280 [ 31.251617] ? vmacache_update+0xfe/0x130 [ 31.255737] ? up_read+0x1a/0x40 [ 31.259071] ? __do_page_fault+0x3d6/0xc90 [ 31.263279] ? mm_fault_error+0x2c0/0x2c0 [ 31.267403] ? do_page_fault+0xee/0x720 [ 31.271345] ? __do_page_fault+0xc90/0xc90 [ 31.275553] ? SyS_mmap_pgoff+0x243/0x5f0 [ 31.279679] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 31.284408] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 31.289127] RIP: 0033:0x440139 [ 31.292290] RSP: 002b:00007ffe8b34ffd8 EFLAGS: 00000217 ORIG_RAX: 0000000000000141 [ 31.299972] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 0000000000440139 [ 31.307215] RDX: 000000000000002c RSI: 0000000020c47fec RDI: 0000000000000000 [ 31.314451] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 31.321692] R10: 00000000ffffffff R11: 0000000000000217 R12: 00000000004016a0 [ 31.328925] R13: 0000000000401730 R14: 0000000000000000 R15: 0000000000000000 [ 31.336224] Mem-Info: [ 31.338656] active_anon:7886 inactive_anon:61 isolated_anon:0 [ 31.338656] active_file:19 inactive_file:14 isolated_file:0 [ 31.338656] unevictable:0 dirty:7 writeback:0 unstable:0 [ 31.338656] slab_reclaimable:7231 slab_unreclaimable:83948 [ 31.338656] mapped:14 shmem:68 pagetables:346 bounce:0 [ 31.338656] free:24144 free_pcp:0 free_cma:0 [ 31.370684] Node 0 active_anon:31544kB inactive_anon:244kB active_file:76kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:56kB dirty:28kB writeback:0kB shmem:272kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 18432kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 31.397687] 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 [ 31.423813] lowmem_reserve[]: 0 2870 6381 6381 [ 31.428414] Node 0 DMA32 free:44052kB min:30332kB low:37912kB high:45492kB active_anon:28kB inactive_anon:4kB active_file:8kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2942332kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 31.455682] lowmem_reserve[]: 0 0 3510 3510 [ 31.460027] Node 0 Normal free:36616kB min:37084kB low:46352kB high:55620kB active_anon:31516kB inactive_anon:240kB active_file:68kB inactive_file:44kB unevictable:0kB writepending:28kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3072kB pagetables:1384kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 31.488605] lowmem_reserve[]: 0 0 0 0 [ 31.492437] 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 [ 31.506140] Node 0 DMA32: 5*4kB (UME) 4*8kB (ME) 4*16kB (ME) 1*32kB (E) 6*64kB (UME) 6*128kB (UME) 5*256kB (ME) 5*512kB (UME) 4*1024kB (UME) 3*2048kB (ME) 7*4096kB (M) = 44052kB [ 31.522162] Node 0 Normal: 555*4kB (UM) 402*8kB (UM) 263*16kB (UM) 124*32kB (ME) 52*64kB (M) 34*128kB (UM) 31*256kB (UM) 15*512kB (M) 0*1024kB 0*2048kB 0*4096kB = 36908kB [ 31.537616] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 31.546192] 104 total pagecache pages [ 31.549987] 0 pages in swap cache [ 31.553428] Swap cache stats: add 0, delete 0, find 0/0 [ 31.558783] Free swap = 0kB [ 31.561792] Total swap = 0kB [ 31.564805] 1965979 pages RAM [ 31.567930] 0 pages HighMem/MovableOnly [ 31.571889] 327762 pages reserved [ 31.575374] Unreclaimable slab info: [ 31.579133] Name Used Total [ 31.584745] hashtab_node 118KB 119KB [ 31.590120] ebitmap_node 382KB 385KB [ 31.595481] avtab_node 1012KB 1013KB [ 31.600844] TIPC 1KB 7KB [ 31.606219] SCTPv6 2KB 4KB [ 31.611584] DCCPv6 2KB 7KB [ 31.616941] DCCP 2KB 6KB [ 31.622321] fib6_nodes 0KB 4KB [ 31.627681] ip6_dst_cache 5KB 7KB [ 31.633037] RAWv6 9KB 19KB [ 31.638405] UDPv6 12KB 14KB [ 31.643767] TCPv6 2KB 5KB [ 31.649135] sd_ext_cdb 0KB 3KB [ 31.654508] scsi_sense_cache 73KB 120KB [ 31.659883] virtio_scsi_cmd 16KB 16KB [ 31.665243] sgpool-128 8KB 8KB [ 31.670615] sgpool-64 4KB 6KB [ 31.675981] sgpool-32 63KB 70KB [ 31.681336] sgpool-16 27KB 30KB [ 31.686704] sgpool-8 161KB 161KB [ 31.692082] cfq_io_cq 14KB 15KB [ 31.697441] cfq_queue 24KB 27KB [ 31.702805] mqueue_inode_cache 1KB 7KB [ 31.708264] nfs_commit_data 3KB 7KB [ 31.713730] nfs_write_data 34KB 37KB [ 31.719090] jbd2_inode 1KB 3KB [ 31.724454] ext4_system_zone 0KB 3KB [ 31.730617] bio-1 1KB 3KB [ 31.735982] rpc_buffers 17KB 19KB [ 31.741515] rpc_tasks 2KB 3KB [ 31.746867] UNIX 773KB 773KB [ 31.752232] tcp_bind_bucket 0KB 4KB [ 31.757608] ip_fib_trie 0KB 3KB [ 31.762958] ip_fib_alias 0KB 3KB [ 31.768334] ip_dst_cache 4KB 8KB [ 31.773694] RAW 5KB 7KB [ 31.779045] UDP 29KB 31KB [ 31.784498] request_sock_TCP 0KB 3KB [ 31.789859] TCP 7KB 15KB [ 31.795208] hugetlbfs_inode_cache 1KB 7KB [ 31.800903] eventpoll_pwq 10KB 11KB [ 31.806267] eventpoll_epi 20KB 23KB [ 31.811633] inotify_inode_mark 3KB 11KB [ 31.817077] request_queue 42KB 114KB [ 31.822443] blkdev_ioc 19KB 23KB [ 31.827801] bio-0 266KB 266KB [ 31.833153] biovec-(1<<(21-12)) 478KB 478KB [ 31.838692] biovec-64 94KB 102KB [ 31.844064] biovec-16 10KB 15KB [ 31.849440] bio_integrity_payload 0KB 4KB [ 31.855160] khugepaged_mm_slot 0KB 3KB [ 31.860614] uid_cache 1KB 3KB [ 31.865965] dmaengine-unmap-2 0KB 3KB [ 31.871327] audit_buffer 0KB 3KB [ 31.876689] skbuff_fclone_cache 130KB 131KB [ 31.882217] skbuff_head_cache 1712KB 1713KB [ 31.887580] configfs_dir_cache 0KB 4KB [ 31.893039] file_lock_cache 157KB 158KB [ 31.898402] file_lock_ctx 1KB 3KB [ 31.903766] fsnotify_mark_connector 2KB 7KB [ 31.909659] shmem_inode_cache 1041KB 1042KB [ 31.915043] task_delay_info 302KB 367KB [ 31.920407] sigqueue 337KB 338KB [ 31.925774] kernfs_node_cache 2160KB 2161KB [ 31.931148] mnt_cache 15KB 20KB [ 31.936510] filp 8665KB 8823KB [ 31.941865] names_cache 112608KB 112646KB [ 31.947237] avc_node 38KB 39KB [ 31.952598] selinux_file_security 441KB 457KB [ 31.958300] selinux_inode_security 1936KB 1936KB [ 31.964097] key_jar 3KB 7KB [ 31.969463] nsproxy 0KB 3KB [ 31.974826] vm_area_struct 17750KB 17750KB [ 31.980182] mm_struct 4234KB 4234KB [ 31.985549] fs_cache 403KB 424KB [ 31.990934] files_cache 1488KB 1488KB [ 31.996292] signal_cache 2371KB 2371KB [ 32.001660] sighand_cache 222KB 284KB [ 32.007052] task_struct 10118KB 10118KB [ 32.012414] cred_jar 2250KB 2252KB [ 32.017781] anon_vma_chain 7347KB 7347KB [ 32.023160] anon_vma 161KB 311KB [ 32.028524] pid 214KB 260KB [ 32.033888] Acpi-Operand 106KB 170KB [ 32.039256] Acpi-Parse 0KB 3KB [ 32.044616] Acpi-State 0KB 7KB [ 32.049980] Acpi-Namespace 19KB 23KB [ 32.055347] numa_policy 0KB 3KB [ 32.060707] debug_objects_cache 497KB 497KB [ 32.066232] trace_event_file 145KB 147KB [ 32.071602] ftrace_event_field 257KB 259KB [ 32.077059] pool_workqueue 22KB 24KB [ 32.082420] page->ptl 2866KB 2866KB [ 32.087803] kmalloc-262144 1032KB 1032KB [ 32.093170] kmalloc-131072 650KB 650KB [ 32.098527] kmalloc-65536 264KB 264KB [ 32.103893] kmalloc-32768 627KB 627KB [ 32.109266] kmalloc-16384 148KB 148KB [ 32.114637] kmalloc-8192 503KB 503KB [ 32.119991] kmalloc-4096 8925KB 8963KB [ 32.125361] kmalloc-2048 4366KB 4366KB [ 32.130726] kmalloc-1024 2848KB 2850KB [ 32.136092] kmalloc-512 2633KB 2816KB [ 32.142143] kmalloc-256 2109KB 2471KB [ 32.147513] kmalloc-128 392KB 527KB [ 32.152874] kmalloc-96 2040KB 2040KB [ 32.158227] kmalloc-64 2460KB 2460KB [ 32.163598] kmalloc-32 2397KB 2397KB [ 32.169050] kmalloc-192 904KB 904KB [ 32.174427] kmem_cache 100KB 101KB [ 32.179783] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 32.188474] [ 1781] 0 1781 5366 167 86016 0 -1000 udevd [ 32.196700] [ 3192] 0 3192 2493 572 57344 0 0 dhclient [ 32.205122] [ 3325] 0 3325 14265 174 122880 0 0 rsyslogd [ 32.213526] [ 3381] 0 3381 4725 51 86016 0 0 cron [ 32.221602] [ 3399] 0 3399 3736 45 65536 0 0 mcstransd [ 32.230136] [ 3409] 0 3409 12927 1228 139264 0 0 restorecond [ 32.238812] [ 3427] 0 3427 12490 152 143360 0 -1000 sshd [ 32.246871] [ 3451] 0 3451 3694 40 73728 0 0 getty [ 32.255045] [ 3452] 0 3452 3694 41 77824 0 0 getty [ 32.263209] [ 3453] 0 3453 3694 41 77824 0 0 getty [ 32.271380] [ 3454] 0 3454 3694 40 73728 0 0 getty [ 32.279546] [ 3455] 0 3455 3694 42 73728 0 0 getty [ 32.287710] [ 3456] 0 3456 3694 40 73728 0 0 getty [ 32.295875] [ 3457] 0 3457 3649 40 69632 0 0 getty [ 32.304057] [ 3459] 0 3459 5662 454 86016 0 -1000 udevd [ 32.312221] [ 3460] 0 3460 5662 454 86016 0 -1000 udevd [ 32.320381] [ 3477] 0 3477 17821 198 184320 0 0 sshd [ 32.328454] [ 3479] 0 3479 280 1 32768 0 0 syzkaller557408 [ 32.337486] [ 3480] 0 3480 4375 524 36864 0 0 syzkaller557408 [ 32.346515] [ 3481] 0 3481 4375 524 36864 0 0 syzkaller557408 [ 32.355553] [ 3482] 0 3482 4375 524 36864 0 0 syzkaller557408 [ 32.364583] [ 3483] 0 3483 4375 524 36864 0 0 syzkaller557408 [ 32.373593] [ 3484] 0 3484 4375 524 36864 0 0 syzkaller557408 [ 32.382621] [ 3485] 0 3485 4375 524 36864 0 0 syzkaller557408 [ 32.391638] [ 3486] 0 3486 4375 524 36864 0 0 syzkaller557408 [ 32.400674] [ 3487] 0 3487 4375 524 36864 0 0 syzkaller557408 [ 32.409696] Out of memory: Kill process 3409 (restorecond) score 0 or sacrifice child [ 32.418012] Killed process 3409 (restorecond) total-vm:51708kB, anon-rss:4912kB, file-rss:0kB, shmem-rss:0kB [ 32.652523] syzkaller557408 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 32.666046] syzkaller557408 cpuset=/ mems_allowed=0 [ 32.671097] CPU: 1 PID: 3487 Comm: syzkaller557408 Not tainted 4.15.0-rc7-mm1+ #53 [ 32.678783] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.688108] Call Trace: [ 32.690669] dump_stack+0x194/0x257 [ 32.694269] ? arch_local_irq_restore+0x53/0x53 [ 32.698906] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 32.704070] dump_header+0x28c/0xe2b [ 32.707756] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 32.712916] ? pagefault_out_of_memory+0x145/0x145 [ 32.717819] ? print_irqtrace_events+0x270/0x270 [ 32.722552] ? avc_has_perm_noaudit+0x37e/0x520 [ 32.727188] ? check_noncircular+0x20/0x20 [ 32.731389] ? check_noncircular+0x20/0x20 [ 32.735591] ? print_irqtrace_events+0x270/0x270 [ 32.740315] ? reacquire_held_locks+0x1f9/0x3e0 [ 32.744955] ? reacquire_held_locks+0x1f9/0x3e0 [ 32.749591] ? check_noncircular+0x20/0x20 [ 32.753794] ? task_will_free_mem+0x252/0xaa0 [ 32.758256] ? check_noncircular+0x20/0x20 [ 32.762460] ? print_irqtrace_events+0x270/0x270 [ 32.767191] ? ___ratelimit+0x30d/0x630 [ 32.771140] ? lock_downgrade+0x980/0x980 [ 32.775261] ? lock_release+0xa40/0xa40 [ 32.779208] ? mark_held_locks+0xaf/0x100 [ 32.783327] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 32.788402] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 32.793394] ? trace_hardirqs_on+0xd/0x10 [ 32.797512] ? ___ratelimit+0x95/0x630 [ 32.801375] ? idr_get_free_cmn+0xfd0/0xfd0 [ 32.805667] ? check_noncircular+0x20/0x20 [ 32.809899] oom_kill_process+0x81b/0x9f0 [ 32.814025] ? oom_badness+0xd1/0x980 [ 32.817795] ? lock_release+0xa40/0xa40 [ 32.821742] ? oom_kill_memcg_member+0x20/0x20 [ 32.826295] ? oom_evaluate_task+0x480/0x480 [ 32.830677] ? out_of_memory+0xe1c/0x1790 [ 32.834795] ? lock_downgrade+0x980/0x980 [ 32.838912] ? lock_release+0xa40/0xa40 [ 32.842853] ? find_next_bit+0xcc/0x100 [ 32.846807] ? oom_evaluate_task+0x284/0x480 [ 32.851185] out_of_memory+0x9d5/0x1790 [ 32.855135] ? oom_killer_disable+0x310/0x310 [ 32.859602] ? mutex_trylock+0x23a/0x2d0 [ 32.863628] ? __alloc_pages_slowpath+0xf63/0x2cc0 [ 32.868529] ? __lock_is_held+0xb6/0x140 [ 32.872559] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 32.877988] __alloc_pages_slowpath+0x1ce4/0x2cc0 [ 32.882823] ? warn_alloc+0x2b0/0x2b0 [ 32.886590] ? print_irqtrace_events+0x270/0x270 [ 32.891316] ? print_irqtrace_events+0x270/0x270 [ 32.896060] ? lock_acquire+0x1d5/0x580 [ 32.900023] ? lock_acquire+0x1d5/0x580 [ 32.903973] ? __lock_acquire+0x664/0x3e00 [ 32.908176] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 32.914032] ? lock_release+0xa40/0xa40 [ 32.917994] ? __lock_is_held+0xb6/0x140 [ 32.922048] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 32.927912] ? __might_sleep+0x95/0x190 [ 32.931865] __alloc_pages_nodemask+0x9fb/0xd80 [ 32.936506] ? lock_release+0xa40/0xa40 [ 32.940456] ? __alloc_pages_slowpath+0x2cc0/0x2cc0 [ 32.945448] ? pcpu_chunk_refresh_hint+0x425/0x570 [ 32.950347] ? print_irqtrace_events+0x270/0x270 [ 32.955076] ? __lock_is_held+0xb6/0x140 [ 32.959110] ? find_next_bit+0xcc/0x100 [ 32.963057] pcpu_populate_chunk+0x1b3/0x880 [ 32.967442] ? find_next_bit+0x97/0x100 [ 32.971394] pcpu_alloc+0x978/0x10e0 [ 32.975088] ? pcpu_free_area+0xa00/0xa00 [ 32.979203] ? __pte_alloc_kernel+0x1bd/0x2a0 [ 32.983670] ? vmap_page_range_noflush+0x523/0x720 [ 32.988578] ? retint_kernel+0x10/0x10 [ 32.992444] ? retint_kernel+0x10/0x10 [ 32.996310] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 33.001296] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 33.006040] ? retint_kernel+0x10/0x10 [ 33.009916] __alloc_percpu_gfp+0x27/0x30 [ 33.014044] array_map_alloc+0x778/0xa00 [ 33.018089] SyS_bpf+0x7f8/0x4400 [ 33.021513] ? perf_event_mmap+0x115/0x12a0 [ 33.025808] ? bpf_prog_get+0x20/0x20 [ 33.029580] ? perf_event_fork+0x30/0x30 [ 33.033618] ? __lock_is_held+0xb6/0x140 [ 33.037648] ? check_noncircular+0x20/0x20 [ 33.041850] ? vma_wants_writenotify+0x51/0x3b0 [ 33.046489] ? __handle_mm_fault+0x80e/0x3ce0 [ 33.050958] ? check_noncircular+0x20/0x20 [ 33.055158] ? __pmd_alloc+0x4e0/0x4e0 [ 33.059015] ? vma_link+0xe9/0x170 [ 33.062549] ? find_held_lock+0x35/0x1d0 [ 33.066582] ? handle_mm_fault+0x2a0/0x930 [ 33.070790] ? find_held_lock+0x35/0x1d0 [ 33.074827] ? __do_page_fault+0x5f7/0xc90 [ 33.079034] ? lock_downgrade+0x980/0x980 [ 33.083157] ? handle_mm_fault+0x476/0x930 [ 33.087357] ? down_read_trylock+0xdb/0x170 [ 33.091648] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 33.096199] ? vmacache_find+0x5f/0x280 [ 33.100140] ? vmacache_update+0xfe/0x130 [ 33.104266] ? up_read+0x1a/0x40 [ 33.107603] ? __do_page_fault+0x3d6/0xc90 [ 33.111812] ? mm_fault_error+0x2c0/0x2c0 [ 33.115945] ? do_page_fault+0xee/0x720 [ 33.119892] ? __do_page_fault+0xc90/0xc90 [ 33.124111] ? SyS_mmap_pgoff+0x243/0x5f0 [ 33.128239] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 33.132984] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 33.137710] RIP: 0033:0x440139 [ 33.140868] RSP: 002b:00007ffe8b34ffd8 EFLAGS: 00000217 ORIG_RAX: 0000000000000141 [ 33.148542] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 0000000000440139 [ 33.155786] RDX: 000000000000002c RSI: 0000000020c47fec RDI: 0000000000000000 [ 33.163031] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 33.170274] R10: 00000000ffffffff R11: 0000000000000217 R12: 00000000004016a0 [ 33.177521] R13: 0000000000401730 R14: 0000000000000000 R15: 0000000000000000 [ 33.184867] Mem-Info: [ 33.187350] active_anon:6655 inactive_anon:61 isolated_anon:0 [ 33.187350] active_file:12 inactive_file:12 isolated_file:0 [ 33.187350] unevictable:0 dirty:0 writeback:0 unstable:0 [ 33.187350] slab_reclaimable:7244 slab_unreclaimable:83639 [ 33.187350] mapped:2 shmem:68 pagetables:318 bounce:0 [ 33.187350] free:24235 free_pcp:36 free_cma:0 [ 33.219425] Node 0 active_anon:26620kB inactive_anon:244kB active_file:48kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:272kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 16384kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 33.246244] 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 [ 33.272456] lowmem_reserve[]: 0 2870 6381 6381 [ 33.277065] Node 0 DMA32 free:44052kB min:30332kB low:37912kB high:45492kB active_anon:28kB inactive_anon:4kB active_file:4kB inactive_file:4kB unevictable:0kB writepending:0kB present:3129332kB managed:2942332kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 33.304329] lowmem_reserve[]: 0 0 3510 3510 [ 33.308669] Node 0 Normal free:36980kB min:37084kB low:46352kB high:55620kB active_anon:26592kB inactive_anon:240kB active_file:44kB inactive_file:44kB unevictable:0kB writepending:0kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3040kB pagetables:1272kB bounce:0kB free_pcp:144kB local_pcp:120kB free_cma:0kB [ 33.337509] lowmem_reserve[]: 0 0 0 0 [ 33.341334] 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 [ 33.355038] Node 0 DMA32: 5*4kB (UME) 4*8kB (ME) 4*16kB (ME) 1*32kB (E) 6*64kB (UME) 6*128kB (UME) 5*256kB (ME) 5*512kB (UME) 4*1024kB (UME) 3*2048kB (ME) 7*4096kB (M) = 44052kB [ 33.371130] Node 0 Normal: 512*4kB (UM) 405*8kB (UME) 290*16kB (UME) 156*32kB (ME) 66*64kB (UM) 33*128kB (UM) 28*256kB (M) 13*512kB (M) 0*1024kB 0*2048kB 0*4096kB = 37192kB [ 33.390513] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 33.400798] 92 total pagecache pages [ 33.408526] 0 pages in swap cache [ 33.411996] Swap cache stats: add 0, delete 0, find 0/0 [ 33.417376] Free swap = 0kB [ 33.420393] Total swap = 0kB [ 33.423413] 1965979 pages RAM [ 33.426517] 0 pages HighMem/MovableOnly [ 33.430489] 327762 pages reserved [ 33.433944] Unreclaimable slab info: [ 33.437659] Name Used Total [ 33.443222] hashtab_node 118KB 119KB [ 33.448590] ebitmap_node 382KB 385KB [ 33.453962] avtab_node 1012KB 1013KB [ 33.459336] TIPC 1KB 7KB [ 33.465498] SCTPv6 2KB 4KB [ 33.470879] DCCPv6 2KB 7KB [ 33.476255] DCCP 2KB 6KB [ 33.481640] fib6_nodes 0KB 4KB [ 33.487036] ip6_dst_cache 5KB 7KB [ 33.492409] RAWv6 9KB 19KB [ 33.497778] UDPv6 12KB 14KB [ 33.503146] TCPv6 2KB 5KB [ 33.508525] sd_ext_cdb 0KB 3KB [ 33.514005] scsi_sense_cache 88KB 120KB [ 33.519394] virtio_scsi_cmd 16KB 16KB [ 33.524767] sgpool-128 8KB 8KB [ 33.530136] sgpool-64 4KB 6KB [ 33.535505] sgpool-32 110KB 110KB [ 33.540872] sgpool-16 33KB 33KB [ 33.546256] sgpool-8 161KB 161KB [ 33.551621] cfq_io_cq 18KB 19KB [ 33.556984] cfq_queue 30KB 30KB [ 33.562355] mqueue_inode_cache 1KB 7KB [ 33.567812] nfs_commit_data 3KB 7KB [ 33.573215] nfs_write_data 34KB 37KB [ 33.578589] jbd2_inode 1KB 3KB [ 33.583962] ext4_system_zone 0KB 3KB [ 33.589339] bio-1 1KB 3KB [ 33.595495] rpc_buffers 17KB 19KB [ 33.600862] rpc_tasks 2KB 3KB [ 33.606227] UNIX 773KB 773KB [ 33.611612] tcp_bind_bucket 0KB 4KB [ 33.616980] ip_fib_trie 0KB 3KB [ 33.622350] ip_fib_alias 0KB 3KB [ 33.627720] ip_dst_cache 4KB 8KB [ 33.633090] RAW 5KB 7KB [ 33.638457] UDP 29KB 31KB [ 33.643825] request_sock_TCP 0KB 3KB [ 33.649192] TCP 7KB 15KB [ 33.654562] hugetlbfs_inode_cache 1KB 7KB [ 33.660274] eventpoll_pwq 10KB 11KB [ 33.665640] eventpoll_epi 20KB 23KB [ 33.671033] inotify_inode_mark 3KB 11KB [ 33.676519] request_queue 37KB 91KB [ 33.681888] blkdev_ioc 27KB 27KB [ 33.687254] bio-0 292KB 292KB [ 33.692623] biovec-(1<<(21-12)) 577KB 577KB [ 33.698164] biovec-64 149KB 149KB [ 33.703529] biovec-16 18KB 18KB [ 33.708899] bio_integrity_payload 0KB 4KB [ 33.714612] khugepaged_mm_slot 0KB 3KB [ 33.720070] uid_cache 0KB 3KB [ 33.725436] dmaengine-unmap-2 0KB 3KB [ 33.731582] audit_buffer 0KB 3KB [ 33.736954] skbuff_fclone_cache 130KB 131KB [ 33.742491] skbuff_head_cache 1713KB 1713KB [ 33.747856] configfs_dir_cache 0KB 4KB [ 33.753309] file_lock_cache 157KB 158KB [ 33.758673] file_lock_ctx 1KB 3KB [ 33.764037] fsnotify_mark_connector 2KB 7KB [ 33.769929] shmem_inode_cache 1040KB 1042KB [ 33.775294] task_delay_info 297KB 367KB [ 33.780665] sigqueue 336KB 338KB [ 33.786032] kernfs_node_cache 2160KB 2161KB [ 33.791400] mnt_cache 15KB 20KB [ 33.796768] filp 8608KB 8767KB [ 33.802144] names_cache 112004KB 112042KB [ 33.807531] avc_node 38KB 39KB [ 33.812897] selinux_file_security 435KB 457KB [ 33.818613] selinux_inode_security 1933KB 1936KB [ 33.824415] key_jar 3KB 7KB [ 33.829786] nsproxy 0KB 3KB [ 33.835154] vm_area_struct 17747KB 17750KB [ 33.840520] mm_struct 4226KB 4234KB [ 33.845888] fs_cache 397KB 424KB [ 33.851255] files_cache 1486KB 1488KB [ 33.856621] signal_cache 2370KB 2371KB [ 33.861995] sighand_cache 217KB 284KB [ 33.868144] task_struct 10118KB 10118KB [ 33.873544] cred_jar 2249KB 2252KB [ 33.878916] anon_vma_chain 7345KB 7347KB [ 33.884283] anon_vma 156KB 308KB [ 33.889649] pid 211KB 260KB [ 33.895041] Acpi-Operand 106KB 170KB [ 33.900409] Acpi-State 0KB 3KB [ 33.905778] Acpi-Namespace 19KB 23KB [ 33.911144] numa_policy 0KB 3KB [ 33.916540] debug_objects_cache 496KB 497KB [ 33.922083] trace_event_file 145KB 147KB [ 33.927451] ftrace_event_field 257KB 259KB [ 33.932906] pool_workqueue 22KB 24KB [ 33.938293] page->ptl 2863KB 2866KB [ 33.943682] kmalloc-262144 1032KB 1032KB [ 33.949046] kmalloc-131072 650KB 650KB [ 33.954414] kmalloc-65536 264KB 264KB [ 33.959780] kmalloc-32768 627KB 627KB [ 33.965150] kmalloc-16384 148KB 148KB [ 33.970518] kmalloc-8192 503KB 503KB [ 33.975883] kmalloc-4096 8610KB 8648KB [ 33.981274] kmalloc-2048 4513KB 4513KB [ 33.986643] kmalloc-1024 2850KB 2850KB [ 33.992035] kmalloc-512 2626KB 2816KB [ 33.997405] kmalloc-256 2088KB 2448KB [ 34.003690] kmalloc-128 392KB 527KB [ 34.009154] kmalloc-96 2052KB 2052KB [ 34.014523] kmalloc-64 2464KB 2464KB [ 34.019908] kmalloc-32 2397KB 2397KB [ 34.025276] kmalloc-192 904KB 904KB [ 34.030642] kmem_cache 100KB 101KB [ 34.036024] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 34.044789] [ 1781] 0 1781 5366 167 86016 0 -1000 udevd [ 34.052986] [ 3192] 0 3192 2493 572 57344 0 0 dhclient [ 34.061419] [ 3325] 0 3325 14265 175 122880 0 0 rsyslogd [ 34.069863] [ 3381] 0 3381 4725 51 86016 0 0 cron [ 34.077936] [ 3399] 0 3399 3736 45 65536 0 0 mcstransd [ 34.086551] [ 3427] 0 3427 12490 152 143360 0 -1000 sshd [ 34.094665] [ 3451] 0 3451 3694 40 73728 0 0 getty [ 34.102835] [ 3452] 0 3452 3694 41 77824 0 0 getty [ 34.111141] [ 3453] 0 3453 3694 41 77824 0 0 getty [ 34.119317] [ 3454] 0 3454 3694 40 73728 0 0 getty [ 34.127486] [ 3455] 0 3455 3694 42 73728 0 0 getty [ 34.135706] [ 3456] 0 3456 3694 40 73728 0 0 getty [ 34.143877] [ 3457] 0 3457 3649 40 69632 0 0 getty [ 34.152055] [ 3459] 0 3459 5662 454 86016 0 -1000 udevd [ 34.160206] [ 3460] 0 3460 5662 454 86016 0 -1000 udevd [ 34.168369] [ 3477] 0 3477 17821 198 184320 0 0 sshd [ 34.176448] [ 3479] 0 3479 280 1 32768 0 0 syzkaller557408 [ 34.185485] [ 3480] 0 3480 4375 524 36864 0 0 syzkaller557408 [ 34.194515] [ 3481] 0 3481 4375 524 36864 0 0 syzkaller557408 [ 34.204485] [ 3482] 0 3482 4375 524 36864 0 0 syzkaller557408 [ 34.213500] [ 3483] 0 3483 4375 524 36864 0 0 syzkaller557408 [ 34.222530] [ 3484] 0 3484 4375 524 36864 0 0 syzkaller557408 [ 34.231566] [ 3485] 0 3485 4375 524 36864 0 0 syzkaller557408 [ 34.240583] [ 3486] 0 3486 4375 524 36864 0 0 syzkaller557408 [ 34.249621] [ 3487] 0 3487 4375 524 36864 0 0 syzkaller557408 [ 34.258652] Out of memory: Kill process 3192 (dhclient) score 0 or sacrifice child [ 34.266481] Killed process 3192 (dhclient) total-vm:9972kB, anon-rss:2288kB, file-rss:0kB, shmem-rss:0kB [ 34.308555] init invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=0 [ 34.319711] init cpuset=/ mems_allowed=0 [ 34.323993] CPU: 0 PID: 1 Comm: init Not tainted 4.15.0-rc7-mm1+ #53 [ 34.330466] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.339802] Call Trace: [ 34.342375] dump_stack+0x194/0x257 [ 34.345996] ? arch_local_irq_restore+0x53/0x53 [ 34.350653] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 34.355839] dump_header+0x28c/0xe2b [ 34.359545] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 34.364725] ? pagefault_out_of_memory+0x145/0x145 [ 34.369646] ? print_irqtrace_events+0x270/0x270 [ 34.374394] ? avc_has_perm_noaudit+0x37e/0x520 [ 34.379052] ? check_noncircular+0x20/0x20 [ 34.383290] ? reacquire_held_locks+0x1f9/0x3e0 [ 34.387940] ? reacquire_held_locks+0x1f9/0x3e0 [ 34.392593] ? check_noncircular+0x20/0x20 [ 34.396808] ? task_will_free_mem+0x252/0xaa0 [ 34.401285] ? check_noncircular+0x20/0x20 [ 34.405509] ? print_irqtrace_events+0x270/0x270 [ 34.410262] ? ___ratelimit+0x30d/0x630 [ 34.414222] ? lock_downgrade+0x980/0x980 [ 34.418451] ? lock_release+0xa40/0xa40 [ 34.422417] ? mark_held_locks+0xaf/0x100 [ 34.426551] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 34.431640] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 34.436641] ? trace_hardirqs_on+0xd/0x10 [ 34.440774] ? ___ratelimit+0x95/0x630 [ 34.444644] ? idr_get_free_cmn+0xfd0/0xfd0 [ 34.448949] ? check_noncircular+0x20/0x20 [ 34.453184] oom_kill_process+0x81b/0x9f0 [ 34.457315] ? oom_badness+0xd1/0x980 [ 34.461094] ? lock_release+0xa40/0xa40 [ 34.465057] ? oom_kill_memcg_member+0x20/0x20 [ 34.469627] ? oom_evaluate_task+0x480/0x480 [ 34.474031] ? out_of_memory+0xe1c/0x1790 [ 34.478163] ? lock_downgrade+0x980/0x980 [ 34.482297] ? lock_release+0xa40/0xa40 [ 34.486271] ? oom_evaluate_task+0x284/0x480 [ 34.490671] out_of_memory+0x9d5/0x1790 [ 34.494645] ? oom_killer_disable+0x310/0x310 [ 34.499146] ? mutex_trylock+0x23a/0x2d0 [ 34.503188] ? __alloc_pages_slowpath+0xf63/0x2cc0 [ 34.508104] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 34.513533] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 34.519419] __alloc_pages_slowpath+0x1ce4/0x2cc0 [ 34.524256] ? trace_hardirqs_on+0xd/0x10 [ 34.528414] ? warn_alloc+0x2b0/0x2b0 [ 34.532198] ? lock_downgrade+0x980/0x980 [ 34.536347] ? radix_tree_lookup_slot+0x99/0xe0 [ 34.541022] ? find_get_entry+0x53c/0x9e0 [ 34.545193] ? __lock_acquire+0x664/0x3e00 [ 34.549461] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 34.555346] ? __might_sleep+0x95/0x190 [ 34.559312] __alloc_pages_nodemask+0x9fb/0xd80 [ 34.563984] ? __alloc_pages_slowpath+0x2cc0/0x2cc0 [ 34.568988] ? add_to_page_cache_lru+0x510/0x510 [ 34.573746] ? check_noncircular+0x20/0x20 [ 34.577996] ? check_noncircular+0x20/0x20 [ 34.582226] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 34.587001] alloc_pages_current+0xb6/0x1e0 [ 34.591314] __page_cache_alloc+0x334/0x500 [ 34.595620] ? rcu_read_lock_held+0xa9/0xc0 [ 34.599926] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 34.607286] filemap_fault+0xf34/0x1ca0 [ 34.611241] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 34.616432] ? __lock_page_or_retry+0x4f0/0x4f0 [ 34.621095] ? filemap_map_pages+0x942/0x15d0 [ 34.625592] ? find_get_entries_tag+0xeb0/0xeb0 [ 34.630245] ? __lock_acquire+0x664/0x3e00 [ 34.634465] ? check_noncircular+0x20/0x20 [ 34.638681] ? print_irqtrace_events+0x270/0x270 [ 34.643412] ? add_wait_queue+0x290/0x290 [ 34.647546] ? print_irqtrace_events+0x270/0x270 [ 34.652284] ? print_irqtrace_events+0x270/0x270 [ 34.657025] ? print_irqtrace_events+0x270/0x270 [ 34.661767] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 34.666940] ? free_obj_work+0x690/0x690 [ 34.670998] ? cpumask_local_spread+0x260/0x260 [ 34.675659] ? lock_acquire+0x1d5/0x580 [ 34.679614] ? lock_acquire+0x1d5/0x580 [ 34.683573] ? ext4_filemap_fault+0x7a/0xad [ 34.687881] ? __lock_acquire+0x664/0x3e00 [ 34.692105] ? lock_release+0xa40/0xa40 [ 34.696065] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 34.701937] ? rcu_note_context_switch+0x710/0x710 [ 34.706865] ? __might_sleep+0x95/0x190 [ 34.710827] ? down_read+0x96/0x150 [ 34.714432] ? ext4_filemap_fault+0x7a/0xad [ 34.718737] ? __down_interruptible+0x6b0/0x6b0 [ 34.723407] ext4_filemap_fault+0x82/0xad [ 34.727545] __do_fault+0xeb/0x315 [ 34.731070] ? pte_offset_kernel+0xc7/0xc7 [ 34.735291] ? do_raw_spin_trylock+0x190/0x190 [ 34.739864] ? check_noncircular+0x20/0x20 [ 34.744094] __handle_mm_fault+0x1d8f/0x3ce0 [ 34.748498] ? __pmd_alloc+0x4e0/0x4e0 [ 34.752374] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 34.757380] ? find_held_lock+0x35/0x1d0 [ 34.761437] ? handle_mm_fault+0x2a0/0x930 [ 34.765661] ? lock_downgrade+0x980/0x980 [ 34.769838] handle_mm_fault+0x38f/0x930 [ 34.773888] ? down_read_trylock+0xdb/0x170 [ 34.778197] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 34.782763] ? vmacache_find+0x5f/0x280 [ 34.786735] ? find_vma+0x30/0x150 [ 34.790269] __do_page_fault+0x5c9/0xc90 [ 34.794328] ? mm_fault_error+0x2c0/0x2c0 [ 34.798456] ? exit_to_usermode_loop+0x8c/0x2f0 [ 34.803126] do_page_fault+0xee/0x720 [ 34.806911] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 34.812431] ? __do_page_fault+0xc90/0xc90 [ 34.816661] ? syscall_return_slowpath+0x2ad/0x550 [ 34.821575] ? prepare_exit_to_usermode+0x340/0x340 [ 34.826582] ? retint_user+0x18/0x18 [ 34.830281] ? page_fault+0x36/0x60 [ 34.833892] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 34.838727] ? page_fault+0x36/0x60 [ 34.842336] page_fault+0x4c/0x60 [ 34.845771] RIP: 0033:0x402a8d [ 34.848938] RSP: 002b:00007fff940fac10 EFLAGS: 00010207 [ 34.854285] RAX: 00007faa115286a0 RBX: 00007fff940fb390 RCX: 00007faa10bfddd3 [ 34.861536] RDX: 00007fff940fac40 RSI: 00007fff940fad70 RDI: 0000000000000011 [ 34.868789] RBP: 00007fff940fb540 R08: 00007fff940fb5c0 R09: 0000000000000001 [ 34.876039] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 34.883288] R13: 00007fff940fb920 R14: 0000000000000000 R15: 0000000000000000 [ 34.890666] Mem-Info: [ 34.893957] active_anon:6083 inactive_anon:61 isolated_anon:0 [ 34.893957] active_file:12 inactive_file:12 isolated_file:0 [ 34.893957] unevictable:0 dirty:0 writeback:0 unstable:0 [ 34.893957] slab_reclaimable:7246 slab_unreclaimable:83630 [ 34.893957] mapped:2 shmem:68 pagetables:309 bounce:0 [ 34.893957] free:24330 free_pcp:28 free_cma:0 [ 34.926197] Node 0 active_anon:24332kB inactive_anon:244kB active_file:24kB inactive_file:72kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:272kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 16384kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 34.953114] 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 [ 34.979278] lowmem_reserve[]: 0 2870 6381 6381 [ 34.983904] Node 0 DMA32 free:44052kB min:30332kB low:37912kB high:45492kB active_anon:28kB inactive_anon:4kB active_file:0kB inactive_file:8kB unevictable:0kB writepending:0kB present:3129332kB managed:2942332kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 35.011184] lowmem_reserve[]: 0 0 3510 3510 [ 35.015544] Node 0 Normal free:36988kB min:37084kB low:46352kB high:55620kB active_anon:24304kB inactive_anon:240kB active_file:16kB inactive_file:72kB unevictable:0kB writepending:0kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3008kB pagetables:1236kB bounce:0kB free_pcp:228kB local_pcp:16kB free_cma:0kB [ 35.045113] lowmem_reserve[]: 0 0 0 0 [ 35.048959] 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 [ 35.062642] Node 0 DMA32: 5*4kB (UME) 4*8kB (ME) 4*16kB (ME) 1*32kB (E) 6*64kB (UME) 6*128kB (UME) 5*256kB (ME) 5*512kB (UME) 4*1024kB (UME) 3*2048kB (ME) 7*4096kB (M) = 44052kB [ 35.078739] Node 0 Normal: 439*4kB (M) 358*8kB (UME) 275*16kB (UME) 146*32kB (UME) 64*64kB (M) 32*128kB (UM) 31*256kB (UM) 12*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 36988kB [ 35.094742] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 35.103332] 92 total pagecache pages [ 35.107069] 0 pages in swap cache [ 35.110542] Swap cache stats: add 0, delete 0, find 0/0 [ 35.115899] Free swap = 0kB [ 35.118915] Total swap = 0kB [ 35.121948] 1965979 pages RAM [ 35.125049] 0 pages HighMem/MovableOnly [ 35.129037] 327762 pages reserved [ 35.132574] Unreclaimable slab info: [ 35.136364] Name Used Total [ 35.141962] hashtab_node 118KB 119KB [ 35.147337] ebitmap_node 382KB 385KB [ 35.152702] avtab_node 1012KB 1013KB [ 35.158076] TIPC 1KB 7KB [ 35.163987] SCTPv6 2KB 4KB [ 35.169357] DCCPv6 2KB 7KB [ 35.176477] DCCP 2KB 6KB [ 35.181866] fib6_nodes 0KB 4KB [ 35.187242] ip6_dst_cache 5KB 7KB [ 35.192621] RAWv6 9KB 19KB [ 35.197990] UDPv6 12KB 14KB [ 35.203370] TCPv6 2KB 5KB [ 35.208764] sd_ext_cdb 0KB 3KB [ 35.214126] scsi_sense_cache 88KB 120KB [ 35.219498] virtio_scsi_cmd 16KB 16KB [ 35.224879] sgpool-128 8KB 8KB [ 35.230242] sgpool-64 4KB 6KB [ 35.235617] sgpool-32 110KB 110KB [ 35.241033] sgpool-16 33KB 33KB [ 35.246412] sgpool-8 165KB 165KB [ 35.251781] cfq_io_cq 18KB 19KB [ 35.257151] cfq_queue 30KB 30KB [ 35.262532] mqueue_inode_cache 1KB 7KB [ 35.267987] nfs_commit_data 3KB 7KB [ 35.273368] nfs_write_data 34KB 37KB [ 35.278756] jbd2_inode 1KB 3KB [ 35.284121] ext4_system_zone 0KB 3KB [ 35.289501] bio-1 1KB 3KB [ 35.294890] rpc_buffers 17KB 19KB [ 35.300263] rpc_tasks 2KB 3KB [ 35.306160] UNIX 773KB 773KB [ 35.311541] tcp_bind_bucket 0KB 4KB [ 35.316914] ip_fib_trie 0KB 3KB [ 35.322298] ip_fib_alias 0KB 3KB [ 35.327658] ip_dst_cache 4KB 8KB [ 35.333115] RAW 5KB 7KB [ 35.338494] UDP 29KB 31KB [ 35.343869] request_sock_TCP 0KB 3KB [ 35.349238] TCP 7KB 15KB [ 35.354618] hugetlbfs_inode_cache 1KB 7KB [ 35.360330] eventpoll_pwq 10KB 11KB [ 35.365701] eventpoll_epi 20KB 23KB [ 35.371072] inotify_inode_mark 3KB 11KB [ 35.376712] request_queue 37KB 91KB [ 35.382080] blkdev_ioc 27KB 27KB [ 35.387450] bio-0 296KB 296KB [ 35.392831] biovec-(1<<(21-12)) 577KB 577KB [ 35.398374] biovec-64 157KB 157KB [ 35.403745] biovec-16 18KB 18KB [ 35.409119] bio_integrity_payload 0KB 4KB [ 35.414827] khugepaged_mm_slot 0KB 3KB [ 35.420288] uid_cache 0KB 3KB [ 35.425668] dmaengine-unmap-2 0KB 3KB [ 35.431045] audit_buffer 0KB 3KB [ 35.436434] skbuff_fclone_cache 130KB 131KB [ 35.442764] skbuff_head_cache 1713KB 1713KB [ 35.448148] configfs_dir_cache 0KB 4KB [ 35.453619] file_lock_cache 157KB 158KB [ 35.459006] file_lock_ctx 1KB 3KB [ 35.464409] fsnotify_mark_connector 2KB 7KB [ 35.470310] shmem_inode_cache 1040KB 1042KB [ 35.475692] task_delay_info 297KB 367KB [ 35.481059] sigqueue 336KB 338KB [ 35.486428] kernfs_node_cache 2160KB 2161KB [ 35.491810] mnt_cache 15KB 20KB [ 35.497188] filp 8608KB 8767KB [ 35.502595] names_cache 112004KB 112042KB [ 35.507988] avc_node 38KB 39KB [ 35.513384] selinux_file_security 435KB 457KB [ 35.519115] selinux_inode_security 1933KB 1936KB [ 35.524930] key_jar 3KB 7KB [ 35.530307] nsproxy 0KB 3KB [ 35.535684] vm_area_struct 17747KB 17750KB [ 35.541064] mm_struct 4226KB 4234KB [ 35.546443] fs_cache 397KB 424KB [ 35.551823] files_cache 1486KB 1488KB [ 35.557204] signal_cache 2370KB 2371KB [ 35.562582] sighand_cache 217KB 284KB [ 35.568054] task_struct 10118KB 10118KB [ 35.573431] cred_jar 2249KB 2252KB [ 35.579594] anon_vma_chain 7345KB 7347KB [ 35.584978] anon_vma 156KB 308KB [ 35.590359] pid 211KB 260KB [ 35.595737] Acpi-Operand 106KB 170KB [ 35.601127] Acpi-State 0KB 3KB [ 35.606859] Acpi-Namespace 19KB 23KB [ 35.612244] numa_policy 0KB 3KB [ 35.617623] debug_objects_cache 496KB 497KB [ 35.623181] trace_event_file 145KB 147KB [ 35.628561] ftrace_event_field 257KB 259KB [ 35.634047] pool_workqueue 22KB 24KB [ 35.640561] page->ptl 2863KB 2866KB [ 35.645980] kmalloc-262144 1032KB 1032KB [ 35.651365] kmalloc-131072 650KB 650KB [ 35.656754] kmalloc-65536 264KB 264KB [ 35.662137] kmalloc-32768 627KB 627KB [ 35.667518] kmalloc-16384 148KB 148KB [ 35.672898] kmalloc-8192 503KB 503KB [ 35.678302] kmalloc-4096 8610KB 8648KB [ 35.683694] kmalloc-2048 4545KB 4545KB [ 35.689076] kmalloc-1024 2850KB 2850KB [ 35.694454] kmalloc-512 2626KB 2816KB [ 35.699863] kmalloc-256 2088KB 2448KB [ 35.706197] kmalloc-128 392KB 527KB [ 35.714102] kmalloc-96 2052KB 2052KB [ 35.721136] kmalloc-64 2464KB 2464KB [ 35.726776] kmalloc-32 2397KB 2397KB [ 35.732235] kmalloc-192 904KB 904KB [ 35.737609] kmem_cache 100KB 101KB [ 35.742987] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 35.752014] [ 1781] 0 1781 5366 166 86016 0 -1000 udevd [ 35.760264] [ 3325] 0 3325 14265 175 122880 0 0 rsyslogd [ 35.768664] [ 3381] 0 3381 4725 51 86016 0 0 cron [ 35.776711] [ 3399] 0 3399 3736 45 65536 0 0 mcstransd [ 35.785196] [ 3427] 0 3427 12490 152 143360 0 -1000 sshd [ 35.793243] [ 3451] 0 3451 3694 40 73728 0 0 getty [ 35.801375] [ 3452] 0 3452 3694 41 77824 0 0 getty [ 35.809506] [ 3453] 0 3453 3694 41 77824 0 0 getty [ 35.817644] [ 3454] 0 3454 3694 40 73728 0 0 getty [ 35.825778] [ 3455] 0 3455 3694 42 73728 0 0 getty [ 35.833917] [ 3456] 0 3456 3694 40 73728 0 0 getty [ 35.842048] [ 3457] 0 3457 3649 40 69632 0 0 getty [ 35.850199] [ 3459] 0 3459 5662 454 86016 0 -1000 udevd [ 35.858361] [ 3460] 0 3460 5662 454 86016 0 -1000 udevd [ 35.866531] [ 3477] 0 3477 17821 198 184320 0 0 sshd [ 35.874617] [ 3479] 0 3479 280 1 32768 0 0 syzkaller557408 [ 35.883657] [ 3480] 0 3480 4375 524 36864 0 0 syzkaller557408 [ 35.892707] [ 3481] 0 3481 4375 524 36864 0 0 syzkaller557408 [ 35.901759] [ 3482] 0 3482 4375 524 36864 0 0 syzkaller557408 [ 35.911004] [ 3483] 0 3483 4375 524 36864 0 0 syzkaller557408 [ 35.920069] [ 3484] 0 3484 4375 524 36864 0 0 syzkaller557408 [ 35.929207] [ 3485] 0 3485 4375 524 36864 0 0 syzkaller557408 [ 35.938255] [ 3486] 0 3486 4375 524 36864 0 0 syzkaller557408 [ 35.947289] [ 3487] 0 3487 4375 524 36864 0 0 syzkaller557408 [ 35.956320] Out of memory: Kill process 3480 (syzkaller557408) score 0 or sacrifice child [ 35.965746] Killed process 3480 (syzkaller557408) total-vm:17500kB, anon-rss:2096kB, file-rss:0kB, shmem-rss:0kB [ 35.979275] oom_reaper: reaped process 3480 (syzkaller557408), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 35.989928] syzkaller557408 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 36.004056] syzkaller557408 cpuset=/ mems_allowed=0 [ 36.009361] CPU: 0 PID: 3484 Comm: syzkaller557408 Not tainted 4.15.0-rc7-mm1+ #53 [ 36.017055] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.026386] Call Trace: [ 36.028946] dump_stack+0x194/0x257 [ 36.032542] ? arch_local_irq_restore+0x53/0x53 [ 36.037180] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 36.043041] dump_header+0x28c/0xe2b [ 36.046726] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 36.051891] ? pagefault_out_of_memory+0x145/0x145 [ 36.056801] ? print_irqtrace_events+0x270/0x270 [ 36.061529] ? avc_has_perm_noaudit+0x37e/0x520 [ 36.066165] ? check_noncircular+0x20/0x20 [ 36.070374] ? check_noncircular+0x20/0x20 [ 36.074585] ? print_irqtrace_events+0x270/0x270 [ 36.079310] ? reacquire_held_locks+0x1f9/0x3e0 [ 36.083943] ? reacquire_held_locks+0x1f9/0x3e0 [ 36.088580] ? check_noncircular+0x20/0x20 [ 36.092788] ? task_will_free_mem+0x252/0xaa0 [ 36.097248] ? check_noncircular+0x20/0x20 [ 36.101458] ? print_irqtrace_events+0x270/0x270 [ 36.106189] ? ___ratelimit+0x30d/0x630 [ 36.110131] ? lock_downgrade+0x980/0x980 [ 36.114258] ? lock_release+0xa40/0xa40 [ 36.118204] ? mark_held_locks+0xaf/0x100 [ 36.122327] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 36.127398] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 36.132381] ? trace_hardirqs_on+0xd/0x10 [ 36.136498] ? ___ratelimit+0x95/0x630 [ 36.140353] ? idr_get_free_cmn+0xfd0/0xfd0 [ 36.144641] ? check_noncircular+0x20/0x20 [ 36.148848] oom_kill_process+0x81b/0x9f0 [ 36.152962] ? oom_badness+0xd1/0x980 [ 36.156728] ? lock_release+0xa40/0xa40 [ 36.160670] ? oom_kill_memcg_member+0x20/0x20 [ 36.165237] ? oom_evaluate_task+0x480/0x480 [ 36.169620] ? out_of_memory+0xe1c/0x1790 [ 36.173742] ? lock_downgrade+0x980/0x980 [ 36.177865] ? lock_release+0xa40/0xa40 [ 36.181805] ? find_next_bit+0xcc/0x100 [ 36.185763] ? oom_evaluate_task+0x284/0x480 [ 36.190150] out_of_memory+0x9d5/0x1790 [ 36.194098] ? usleep_range+0x190/0x190 [ 36.198653] ? oom_killer_disable+0x310/0x310 [ 36.203849] ? mutex_trylock+0x23a/0x2d0 [ 36.207877] ? __alloc_pages_slowpath+0xf63/0x2cc0 [ 36.212788] ? __lock_is_held+0xb6/0x140 [ 36.216818] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 36.222244] __alloc_pages_slowpath+0x1ce4/0x2cc0 [ 36.227085] ? warn_alloc+0x2b0/0x2b0 [ 36.230849] ? check_noncircular+0x20/0x20 [ 36.235060] ? print_irqtrace_events+0x270/0x270 [ 36.239787] ? check_noncircular+0x20/0x20 [ 36.243984] ? find_held_lock+0x35/0x1d0 [ 36.248015] ? lock_acquire+0x1d5/0x580 [ 36.251955] ? lock_acquire+0x1d5/0x580 [ 36.255903] ? __lock_acquire+0x664/0x3e00 [ 36.260934] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 36.267050] ? lock_release+0xa40/0xa40 [ 36.271008] ? __lock_is_held+0xb6/0x140 [ 36.275050] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 36.280912] ? __might_sleep+0x95/0x190 [ 36.284864] __alloc_pages_nodemask+0x9fb/0xd80 [ 36.289499] ? lock_release+0xa40/0xa40 [ 36.293450] ? __alloc_pages_slowpath+0x2cc0/0x2cc0 [ 36.298446] ? pcpu_chunk_refresh_hint+0x425/0x570 [ 36.303345] ? print_irqtrace_events+0x270/0x270 [ 36.308081] ? __lock_is_held+0xb6/0x140 [ 36.312114] ? find_next_bit+0xcc/0x100 [ 36.316058] pcpu_populate_chunk+0x1b3/0x880 [ 36.320433] ? find_next_bit+0x97/0x100 [ 36.324388] pcpu_alloc+0x978/0x10e0 [ 36.328081] ? pcpu_free_area+0xa00/0xa00 [ 36.332637] ? vmap_page_range_noflush+0x523/0x720 [ 36.339202] ? map_vm_area+0x9e/0xd0 [ 36.342885] ? __vmalloc_node_range+0x37a/0x650 [ 36.347529] ? array_map_alloc+0x351/0xa00 [ 36.351728] ? __vmalloc_node_flags_caller+0x50/0x60 [ 36.356800] __alloc_percpu_gfp+0x27/0x30 [ 36.360914] array_map_alloc+0x778/0xa00 [ 36.364952] SyS_bpf+0x7f8/0x4400 [ 36.368386] ? perf_event_mmap+0x115/0x12a0 [ 36.372675] ? bpf_prog_get+0x20/0x20 [ 36.376452] ? perf_event_fork+0x30/0x30 [ 36.380485] ? __lock_is_held+0xb6/0x140 [ 36.384512] ? check_noncircular+0x20/0x20 [ 36.388715] ? vma_wants_writenotify+0x51/0x3b0 [ 36.393354] ? __handle_mm_fault+0x80e/0x3ce0 [ 36.397993] ? check_noncircular+0x20/0x20 [ 36.403233] ? __pmd_alloc+0x4e0/0x4e0 [ 36.408385] ? vma_link+0xe9/0x170 [ 36.411897] ? find_held_lock+0x35/0x1d0 [ 36.415947] ? handle_mm_fault+0x2a0/0x930 [ 36.420151] ? find_held_lock+0x35/0x1d0 [ 36.424190] ? __do_page_fault+0x5f7/0xc90 [ 36.428390] ? lock_downgrade+0x980/0x980 [ 36.432509] ? handle_mm_fault+0x476/0x930 [ 36.436715] ? down_read_trylock+0xdb/0x170 [ 36.441005] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 36.445552] ? vmacache_find+0x5f/0x280 [ 36.449498] ? vmacache_update+0xfe/0x130 [ 36.453618] ? up_read+0x1a/0x40 [ 36.456952] ? __do_page_fault+0x3d6/0xc90 [ 36.461158] ? mm_fault_error+0x2c0/0x2c0 [ 36.465280] ? do_page_fault+0xee/0x720 [ 36.469221] ? __do_page_fault+0xc90/0xc90 [ 36.473429] ? SyS_mmap_pgoff+0x243/0x5f0 [ 36.477553] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 36.482282] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 36.487003] RIP: 0033:0x440139 [ 36.490157] RSP: 002b:00007ffe8b34ffd8 EFLAGS: 00000217 ORIG_RAX: 0000000000000141 [ 36.498097] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 0000000000440139 [ 36.508278] RDX: 000000000000002c RSI: 0000000020c47fec RDI: 0000000000000000 [ 36.518122] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 36.525359] R10: 00000000ffffffff R11: 0000000000000217 R12: 00000000004016a0 [ 36.532595] R13: 0000000000401730 R14: 0000000000000000 R15: 0000000000000000 [ 36.540031] Mem-Info: [ 36.542497] active_anon:5567 inactive_anon:61 isolated_anon:0 [ 36.542497] active_file:23 inactive_file:95 isolated_file:0 [ 36.542497] unevictable:0 dirty:0 writeback:0 unstable:0 [ 36.542497] slab_reclaimable:7247 slab_unreclaimable:83617 [ 36.542497] mapped:5 shmem:68 pagetables:309 bounce:0 [ 36.542497] free:24185 free_pcp:84 free_cma:0 [ 36.574638] Node 0 active_anon:22268kB inactive_anon:244kB active_file:84kB inactive_file:76kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:20kB dirty:0kB writeback:0kB shmem:272kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 16384kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 36.601599] 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 [ 36.628059] lowmem_reserve[]: 0 2870 6381 6381 [ 36.632681] Node 0 DMA32 free:44052kB min:30332kB low:37912kB high:45492kB active_anon:28kB inactive_anon:4kB active_file:8kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2942332kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 36.659946] lowmem_reserve[]: 0 0 3510 3510 [ 36.664298] Node 0 Normal free:37080kB min:37084kB low:46352kB high:55620kB active_anon:22240kB inactive_anon:240kB active_file:80kB inactive_file:76kB unevictable:0kB writepending:0kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3008kB pagetables:1236kB bounce:0kB free_pcp:4kB local_pcp:0kB free_cma:0kB [ 36.692814] lowmem_reserve[]: 0 0 0 0 [ 36.700980] 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 [ 36.714770] Node 0 DMA32: 5*4kB (UME) 4*8kB (ME) 4*16kB (ME) 1*32kB (E) 6*64kB (UME) 6*128kB (UME) 5*256kB (ME) 5*512kB (UME) 4*1024kB (UME) 3*2048kB (ME) 7*4096kB (M) = 44052kB [ 36.730856] Node 0 Normal: 467*4kB (UME) 357*8kB (ME) 275*16kB (ME) 145*32kB (ME) 64*64kB (M) 32*128kB (UM) 30*256kB (M) 13*512kB (UM) 1*1024kB (U) 0*2048kB 0*4096kB = 37316kB [ 36.746714] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 36.755276] 92 total pagecache pages [ 36.758996] 0 pages in swap cache [ 36.762443] Swap cache stats: add 0, delete 0, find 0/0 [ 36.767800] Free swap = 0kB [ 36.770806] Total swap = 0kB [ 36.773814] 1965979 pages RAM [ 36.776924] 0 pages HighMem/MovableOnly [ 36.780890] 327762 pages reserved [ 36.784336] Unreclaimable slab info: [ 36.788048] Name Used Total [ 36.793590] hashtab_node 118KB 119KB [ 36.798947] ebitmap_node 382KB 385KB [ 36.804296] avtab_node 1012KB 1013KB [ 36.809648] TIPC 1KB 7KB [ 36.815021] SCTPv6 2KB 4KB [ 36.820371] DCCPv6 2KB 7KB [ 36.825746] DCCP 2KB 6KB [ 36.831148] fib6_nodes 0KB 4KB [ 36.836545] ip6_dst_cache 5KB 7KB [ 36.841949] RAWv6 9KB 19KB [ 36.847351] UDPv6 12KB 14KB [ 36.852747] TCPv6 2KB 5KB [ 36.858112] sd_ext_cdb 0KB 3KB [ 36.863468] scsi_sense_cache 88KB 120KB [ 36.868820] virtio_scsi_cmd 16KB 16KB [ 36.874170] sgpool-128 8KB 8KB [ 36.879515] sgpool-64 4KB 6KB [ 36.884860] sgpool-32 126KB 126KB [ 36.890213] sgpool-16 41KB 41KB [ 36.895560] sgpool-8 168KB 168KB [ 36.900906] cfq_io_cq 18KB 19KB [ 36.906250] cfq_queue 29KB 30KB [ 36.911594] mqueue_inode_cache 1KB 7KB [ 36.917029] nfs_commit_data 3KB 7KB [ 36.922392] nfs_write_data 34KB 37KB [ 36.927741] jbd2_inode 1KB 3KB [ 36.933112] ext4_system_zone 0KB 3KB [ 36.938475] bio-1 1KB 3KB [ 36.943826] rpc_buffers 17KB 19KB [ 36.949171] rpc_tasks 2KB 3KB [ 36.954521] UNIX 773KB 773KB [ 36.959868] tcp_bind_bucket 0KB 4KB [ 36.965215] ip_fib_trie 0KB 3KB [ 36.970557] ip_fib_alias 0KB 3KB [ 36.975902] ip_dst_cache 3KB 8KB [ 36.981248] RAW 5KB 7KB [ 36.986592] UDP 29KB 31KB [ 36.991940] TCP 7KB 15KB [ 36.997286] hugetlbfs_inode_cache 1KB 7KB [ 37.002981] eventpoll_pwq 10KB 11KB [ 37.008327] eventpoll_epi 20KB 23KB [ 37.013675] inotify_inode_mark 3KB 11KB [ 37.019114] request_queue 37KB 91KB [ 37.024465] blkdev_ioc 25KB 27KB [ 37.029815] bio-0 307KB 307KB [ 37.035933] biovec-(1<<(21-12)) 577KB 577KB [ 37.041458] biovec-64 173KB 173KB [ 37.046803] biovec-16 22KB 22KB [ 37.052167] bio_integrity_payload 0KB 4KB [ 37.057867] khugepaged_mm_slot 0KB 3KB [ 37.063322] uid_cache 0KB 3KB [ 37.068669] dmaengine-unmap-2 0KB 3KB [ 37.074037] audit_buffer 0KB 3KB [ 37.079412] skbuff_fclone_cache 130KB 131KB [ 37.084933] skbuff_head_cache 1713KB 1713KB [ 37.090279] configfs_dir_cache 0KB 4KB [ 37.095711] file_lock_cache 157KB 158KB [ 37.101060] file_lock_ctx 1KB 3KB [ 37.106405] fsnotify_mark_connector 2KB 7KB [ 37.112279] shmem_inode_cache 1040KB 1042KB [ 37.117625] task_delay_info 297KB 367KB [ 37.122975] sigqueue 336KB 338KB [ 37.128335] kernfs_node_cache 2160KB 2161KB [ 37.133683] mnt_cache 15KB 20KB [ 37.139042] filp 8566KB 8745KB [ 37.144390] names_cache 111996KB 112034KB [ 37.149741] avc_node 37KB 39KB [ 37.155088] selinux_file_security 433KB 457KB [ 37.160802] selinux_inode_security 1930KB 1936KB [ 37.166591] key_jar 3KB 7KB [ 37.171939] nsproxy 0KB 3KB [ 37.177287] vm_area_struct 17741KB 17750KB [ 37.182635] mm_struct 4225KB 4234KB [ 37.187982] fs_cache 396KB 424KB [ 37.193330] files_cache 1485KB 1488KB [ 37.198677] signal_cache 2370KB 2371KB [ 37.204029] sighand_cache 212KB 277KB [ 37.209381] task_struct 10118KB 10118KB [ 37.214728] cred_jar 2248KB 2252KB [ 37.220082] anon_vma_chain 7342KB 7347KB [ 37.225429] anon_vma 142KB 304KB [ 37.230779] pid 207KB 260KB [ 37.236127] Acpi-Operand 106KB 170KB [ 37.241476] Acpi-State 0KB 3KB [ 37.246823] Acpi-Namespace 19KB 23KB [ 37.252182] numa_policy 0KB 3KB [ 37.257529] debug_objects_cache 496KB 497KB [ 37.263056] trace_event_file 145KB 147KB [ 37.268419] ftrace_event_field 257KB 259KB [ 37.273865] pool_workqueue 22KB 24KB [ 37.279217] page->ptl 2863KB 2866KB [ 37.284573] kmalloc-262144 1032KB 1032KB [ 37.289917] kmalloc-131072 650KB 650KB [ 37.295263] kmalloc-65536 264KB 264KB [ 37.300605] kmalloc-32768 627KB 627KB [ 37.305948] kmalloc-16384 148KB 148KB [ 37.311293] kmalloc-8192 503KB 503KB [ 37.316637] kmalloc-4096 8602KB 8631KB [ 37.321980] kmalloc-2048 4609KB 4609KB [ 37.327328] kmalloc-1024 2850KB 2850KB [ 37.332677] kmalloc-512 2626KB 2816KB [ 37.338021] kmalloc-256 2068KB 2430KB [ 37.343370] kmalloc-128 390KB 527KB [ 37.348725] kmalloc-96 2052KB 2052KB [ 37.354075] kmalloc-64 2464KB 2464KB [ 37.359421] kmalloc-32 2397KB 2397KB [ 37.364770] kmalloc-192 902KB 904KB [ 37.370124] kmem_cache 100KB 101KB [ 37.375470] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 37.384055] [ 1781] 0 1781 5366 166 86016 0 -1000 udevd [ 37.392187] [ 3325] 0 3325 14265 175 122880 0 0 rsyslogd [ 37.400579] [ 3381] 0 3381 4725 51 86016 0 0 cron [ 37.408627] [ 3399] 0 3399 3736 45 65536 0 0 mcstransd [ 37.417104] [ 3427] 0 3427 12490 152 143360 0 -1000 sshd [ 37.425145] [ 3451] 0 3451 3694 40 73728 0 0 getty [ 37.433269] [ 3452] 0 3452 3694 41 77824 0 0 getty [ 37.441404] [ 3453] 0 3453 3694 41 77824 0 0 getty [ 37.449540] [ 3454] 0 3454 3694 40 73728 0 0 getty [ 37.457668] [ 3455] 0 3455 3694 42 73728 0 0 getty [ 37.465793] [ 3456] 0 3456 3694 40 73728 0 0 getty [ 37.473935] [ 3457] 0 3457 3649 40 69632 0 0 getty [ 37.482079] [ 3459] 0 3459 5662 454 86016 0 -1000 udevd [ 37.490209] [ 3460] 0 3460 5662 454 86016 0 -1000 udevd [ 37.498344] [ 3477] 0 3477 17821 198 184320 0 0 sshd [ 37.506391] [ 3479] 0 3479 280 1 32768 0 0 syzkaller557408 [ 37.515387] [ 3480] 0 3480 4375 0 32768 0 0 syzkaller557408 [ 37.524383] [ 3481] 0 3481 4375 524 36864 0 0 syzkaller557408 [ 37.533383] [ 3482] 0 3482 4375 524 36864 0 0 syzkaller557408 [ 37.542389] [ 3483] 0 3483 4375 524 36864 0 0 syzkaller557408 [ 37.551385] [ 3484] 0 3484 4375 524 36864 0 0 syzkaller557408 [ 37.560387] [ 3485] 0 3485 4375 524 36864 0 0 syzkaller557408 [ 37.569388] [ 3486] 0 3486 4375 524 36864 0 0 syzkaller557408 [ 37.578392] [ 3487] 0 3487 4375 524 36864 0 0 syzkaller557408 [ 37.587401] Out of memory: Kill process 3481 (syzkaller557408) score 0 or sacrifice child [ 37.595724] Killed process 3481 (syzkaller557408) total-vm:17500kB, anon-rss:2096kB, file-rss:0kB, shmem-rss:0kB [ 37.608619] oom_reaper: reaped process 3481 (syzkaller557408), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 37.944475] syzkaller557408 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 37.956855] syzkaller557408 cpuset=/ mems_allowed=0 [ 37.961904] CPU: 1 PID: 3485 Comm: syzkaller557408 Not tainted 4.15.0-rc7-mm1+ #53 [ 37.969596] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.978944] Call Trace: [ 37.981520] dump_stack+0x194/0x257 [ 37.985133] ? arch_local_irq_restore+0x53/0x53 [ 37.989788] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 37.994974] dump_header+0x28c/0xe2b [ 37.998683] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 38.003865] ? pagefault_out_of_memory+0x145/0x145 [ 38.008784] ? print_irqtrace_events+0x270/0x270 [ 38.013537] ? avc_has_perm_noaudit+0x37e/0x520 [ 38.018194] ? check_noncircular+0x20/0x20 [ 38.022413] ? check_noncircular+0x20/0x20 [ 38.026632] ? print_irqtrace_events+0x270/0x270 [ 38.031377] ? reacquire_held_locks+0x1f9/0x3e0 [ 38.036028] ? reacquire_held_locks+0x1f9/0x3e0 [ 38.040684] ? check_noncircular+0x20/0x20 [ 38.044904] ? task_will_free_mem+0x252/0xaa0 [ 38.049381] ? check_noncircular+0x20/0x20 [ 38.054390] ? print_irqtrace_events+0x270/0x270 [ 38.061504] ? ___ratelimit+0x30d/0x630 [ 38.066951] ? lock_downgrade+0x980/0x980 [ 38.071088] ? lock_release+0xa40/0xa40 [ 38.075059] ? mark_held_locks+0xaf/0x100 [ 38.079194] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 38.084286] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 38.089285] ? trace_hardirqs_on+0xd/0x10 [ 38.093421] ? ___ratelimit+0x95/0x630 [ 38.097293] ? idr_get_free_cmn+0xfd0/0xfd0 [ 38.101600] ? check_noncircular+0x20/0x20 [ 38.105829] oom_kill_process+0x81b/0x9f0 [ 38.109960] ? oom_badness+0xd1/0x980 [ 38.113738] ? lock_release+0xa40/0xa40 [ 38.117701] ? oom_kill_memcg_member+0x20/0x20 [ 38.122273] ? oom_evaluate_task+0x480/0x480 [ 38.126676] ? out_of_memory+0xe1c/0x1790 [ 38.130811] ? lock_downgrade+0x980/0x980 [ 38.134943] ? lock_release+0xa40/0xa40 [ 38.138918] ? oom_evaluate_task+0x284/0x480 [ 38.143318] out_of_memory+0x9d5/0x1790 [ 38.147291] ? oom_killer_disable+0x310/0x310 [ 38.151776] ? mutex_trylock+0x23a/0x2d0 [ 38.155816] ? __alloc_pages_slowpath+0xf63/0x2cc0 [ 38.160733] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 38.166161] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 38.172045] __alloc_pages_slowpath+0x1ce4/0x2cc0 [ 38.176918] ? warn_alloc+0x2b0/0x2b0 [ 38.180716] ? print_irqtrace_events+0x270/0x270 [ 38.185476] ? mutex_spin_on_owner+0x446/0xb50 [ 38.190072] ? __lock_acquire+0x664/0x3e00 [ 38.194300] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 38.200166] ? check_preempt_curr+0x350/0x350 [ 38.204648] ? __lock_is_held+0xb6/0x140 [ 38.208759] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 38.214627] ? find_held_lock+0x35/0x1d0 [ 38.218686] ? __might_sleep+0x95/0x190 [ 38.222653] __alloc_pages_nodemask+0x9fb/0xd80 [ 38.227317] ? __alloc_pages_slowpath+0x2cc0/0x2cc0 [ 38.232335] ? pcpu_chunk_refresh_hint+0x425/0x570 [ 38.237253] ? print_irqtrace_events+0x270/0x270 [ 38.242000] ? __lock_is_held+0xb6/0x140 [ 38.251788] ? find_next_bit+0xcc/0x100 [ 38.255786] pcpu_populate_chunk+0x1b3/0x880 [ 38.260181] ? find_next_bit+0x97/0x100 [ 38.264156] pcpu_alloc+0x978/0x10e0 [ 38.269003] ? pcpu_free_area+0xa00/0xa00 [ 38.273141] ? vmap_page_range_noflush+0x523/0x720 [ 38.278089] ? map_vm_area+0x9e/0xd0 [ 38.281793] ? __vmalloc_node_range+0x37a/0x650 [ 38.286461] ? array_map_alloc+0x351/0xa00 [ 38.290683] ? __vmalloc_node_flags_caller+0x50/0x60 [ 38.295779] __alloc_percpu_gfp+0x27/0x30 [ 38.299916] array_map_alloc+0x778/0xa00 [ 38.303976] SyS_bpf+0x7f8/0x4400 [ 38.307414] ? perf_event_mmap+0x115/0x12a0 [ 38.311726] ? bpf_prog_get+0x20/0x20 [ 38.315517] ? perf_event_fork+0x30/0x30 [ 38.319592] ? __lock_is_held+0xb6/0x140 [ 38.323643] ? check_noncircular+0x20/0x20 [ 38.327858] ? vma_wants_writenotify+0x51/0x3b0 [ 38.332516] ? __handle_mm_fault+0x80e/0x3ce0 [ 38.337003] ? check_noncircular+0x20/0x20 [ 38.341218] ? __pmd_alloc+0x4e0/0x4e0 [ 38.345083] ? vma_link+0xe9/0x170 [ 38.348621] ? find_held_lock+0x35/0x1d0 [ 38.352682] ? handle_mm_fault+0x2a0/0x930 [ 38.356907] ? find_held_lock+0x35/0x1d0 [ 38.360969] ? __do_page_fault+0x5f7/0xc90 [ 38.365190] ? lock_downgrade+0x980/0x980 [ 38.369347] ? handle_mm_fault+0x476/0x930 [ 38.373565] ? down_read_trylock+0xdb/0x170 [ 38.377876] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 38.382441] ? vmacache_find+0x5f/0x280 [ 38.386400] ? vmacache_update+0xfe/0x130 [ 38.390541] ? up_read+0x1a/0x40 [ 38.393894] ? __do_page_fault+0x3d6/0xc90 [ 38.398127] ? mm_fault_error+0x2c0/0x2c0 [ 38.402278] ? do_page_fault+0xee/0x720 [ 38.406236] ? __do_page_fault+0xc90/0xc90 [ 38.410473] ? SyS_mmap_pgoff+0x243/0x5f0 [ 38.414623] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 38.419376] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 38.424110] RIP: 0033:0x440139 [ 38.427281] RSP: 002b:00007ffe8b34ffd8 EFLAGS: 00000217 ORIG_RAX: 0000000000000141 [ 38.434976] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 0000000000440139 [ 38.442232] RDX: 000000000000002c RSI: 0000000020c47fec RDI: 0000000000000000 [ 38.449486] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 38.456756] R10: 00000000ffffffff R11: 0000000000000217 R12: 00000000004016a0 [ 38.464007] R13: 0000000000401730 R14: 0000000000000000 R15: 0000000000000000 [ 38.471359] Mem-Info: [ 38.482777] active_anon:5050 inactive_anon:61 isolated_anon:0 [ 38.482777] active_file:12 inactive_file:0 isolated_file:0 [ 38.482777] unevictable:0 dirty:0 writeback:0 unstable:0 [ 38.482777] slab_reclaimable:7260 slab_unreclaimable:83444 [ 38.482777] mapped:14 shmem:68 pagetables:307 bounce:0 [ 38.482777] free:24221 free_pcp:0 free_cma:0 [ 38.520241] Node 0 active_anon:20200kB inactive_anon:244kB active_file:48kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:56kB dirty:0kB writeback:0kB shmem:272kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 12288kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 38.554134] 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 [ 38.580287] lowmem_reserve[]: 0 2870 6381 6381 [ 38.584903] Node 0 DMA32 free:44052kB min:30332kB low:37912kB high:45492kB active_anon:28kB inactive_anon:4kB active_file:0kB inactive_file:8kB unevictable:0kB writepending:0kB present:3129332kB managed:2942332kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 38.612189] lowmem_reserve[]: 0 0 3510 3510 [ 38.616542] Node 0 Normal free:36924kB min:37084kB low:46352kB high:55620kB active_anon:20172kB inactive_anon:240kB active_file:48kB inactive_file:80kB unevictable:0kB writepending:0kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3008kB pagetables:1228kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 38.645033] lowmem_reserve[]: 0 0 0 0 [ 38.648862] 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 [ 38.665038] Node 0 DMA32: 5*4kB (UME) 4*8kB (ME) 4*16kB (ME) 1*32kB (E) 6*64kB (UME) 6*128kB (UME) 5*256kB (ME) 5*512kB (UME) 4*1024kB (UME) 3*2048kB (ME) 7*4096kB (M) = 44052kB [ 38.681136] Node 0 Normal: 459*4kB (UM) 361*8kB (UME) 273*16kB (UME) 146*32kB (UME) 65*64kB (M) 32*128kB (UM) 30*256kB (M) 13*512kB (UM) 1*1024kB (U) 0*2048kB 0*4096kB = 37380kB [ 38.697212] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 38.706138] 103 total pagecache pages [ 38.709947] 0 pages in swap cache [ 38.713401] Swap cache stats: add 0, delete 0, find 0/0 [ 38.718766] Free swap = 0kB [ 38.721786] Total swap = 0kB [ 38.724804] 1965979 pages RAM [ 38.727910] 0 pages HighMem/MovableOnly [ 38.731886] 327762 pages reserved [ 38.735345] Unreclaimable slab info: [ 38.740381] Name Used Total [ 38.745962] hashtab_node 118KB 119KB [ 38.751598] ebitmap_node 382KB 385KB [ 38.756973] avtab_node 1012KB 1013KB [ 38.762347] TIPC 1KB 7KB [ 38.767718] SCTPv6 2KB 4KB [ 38.773072] DCCPv6 2KB 7KB [ 38.778428] DCCP 2KB 6KB [ 38.783785] fib6_nodes 0KB 4KB [ 38.789839] ip6_dst_cache 5KB 7KB [ 38.795199] RAWv6 9KB 19KB [ 38.800555] UDPv6 12KB 14KB [ 38.805903] TCPv6 2KB 5KB [ 38.811280] sd_ext_cdb 0KB 3KB [ 38.816643] scsi_sense_cache 120KB 120KB [ 38.821996] virtio_scsi_cmd 16KB 16KB [ 38.827353] sgpool-128 8KB 8KB [ 38.832700] sgpool-64 4KB 6KB [ 38.838058] sgpool-32 244KB 244KB [ 38.843411] sgpool-16 60KB 60KB [ 38.848766] sgpool-8 195KB 195KB [ 38.854118] cfq_io_cq 16KB 19KB [ 38.859465] cfq_queue 25KB 30KB [ 38.864821] mqueue_inode_cache 1KB 7KB [ 38.870267] nfs_commit_data 3KB 7KB [ 38.875615] nfs_write_data 34KB 37KB [ 38.880963] jbd2_inode 1KB 3KB [ 38.886312] ext4_system_zone 0KB 3KB [ 38.891670] bio-1 1KB 3KB [ 38.897029] rpc_buffers 17KB 19KB [ 38.902373] rpc_tasks 2KB 3KB [ 38.907718] UNIX 773KB 773KB [ 38.913065] tcp_bind_bucket 0KB 4KB [ 38.918417] ip_fib_trie 0KB 3KB [ 38.923781] ip_fib_alias 0KB 3KB [ 38.929129] ip_dst_cache 3KB 8KB [ 38.934480] RAW 5KB 7KB [ 38.939839] UDP 29KB 31KB [ 38.945185] TCP 7KB 15KB [ 38.950531] hugetlbfs_inode_cache 1KB 7KB [ 38.956229] eventpoll_pwq 10KB 11KB [ 38.961578] eventpoll_epi 20KB 23KB [ 38.966926] inotify_inode_mark 3KB 11KB [ 38.972369] request_queue 34KB 68KB [ 38.977717] blkdev_ioc 23KB 27KB [ 38.983066] bio-0 382KB 382KB [ 38.988432] biovec-(1<<(21-12)) 577KB 577KB [ 38.993953] biovec-64 315KB 315KB [ 38.999304] biovec-16 41KB 41KB [ 39.004651] bio_integrity_payload 0KB 4KB [ 39.010345] khugepaged_mm_slot 0KB 3KB [ 39.015783] uid_cache 0KB 3KB [ 39.021136] dmaengine-unmap-2 0KB 3KB [ 39.026490] audit_buffer 0KB 3KB [ 39.031849] skbuff_fclone_cache 130KB 131KB [ 39.037372] skbuff_head_cache 1712KB 1713KB [ 39.042717] configfs_dir_cache 0KB 4KB [ 39.048155] file_lock_cache 157KB 158KB [ 39.054264] file_lock_ctx 1KB 3KB [ 39.059612] fsnotify_mark_connector 2KB 7KB [ 39.065479] shmem_inode_cache 1040KB 1042KB [ 39.070833] task_delay_info 297KB 367KB [ 39.076192] sigqueue 336KB 338KB [ 39.081540] kernfs_node_cache 2160KB 2161KB [ 39.086888] mnt_cache 15KB 20KB [ 39.092243] filp 8536KB 8715KB [ 39.097595] names_cache 111392KB 111430KB [ 39.102942] avc_node 37KB 39KB [ 39.108288] selinux_file_security 429KB 453KB [ 39.113992] selinux_inode_security 1930KB 1936KB [ 39.119785] key_jar 3KB 7KB [ 39.125140] nsproxy 0KB 3KB [ 39.130504] vm_area_struct 17738KB 17750KB [ 39.135852] mm_struct 4225KB 4234KB [ 39.141203] fs_cache 396KB 424KB [ 39.146553] files_cache 1484KB 1488KB [ 39.151899] signal_cache 2370KB 2371KB [ 39.157245] sighand_cache 210KB 270KB [ 39.162597] task_struct 10118KB 10118KB [ 39.169346] cred_jar 2247KB 2252KB [ 39.175050] anon_vma_chain 7342KB 7347KB [ 39.180422] anon_vma 132KB 300KB [ 39.185781] pid 207KB 260KB [ 39.191128] Acpi-Operand 106KB 170KB [ 39.196492] Acpi-Namespace 19KB 23KB [ 39.201851] numa_policy 0KB 3KB [ 39.207199] debug_objects_cache 496KB 497KB [ 39.212718] trace_event_file 145KB 147KB [ 39.218066] ftrace_event_field 257KB 259KB [ 39.223501] pool_workqueue 22KB 24KB [ 39.228851] page->ptl 2861KB 2866KB [ 39.234210] kmalloc-262144 1032KB 1032KB [ 39.239568] kmalloc-131072 650KB 650KB [ 39.244914] kmalloc-65536 264KB 264KB [ 39.250267] kmalloc-32768 627KB 627KB [ 39.255624] kmalloc-16384 148KB 148KB [ 39.260973] kmalloc-8192 503KB 503KB [ 39.266322] kmalloc-4096 8313KB 8351KB [ 39.271667] kmalloc-2048 5087KB 5087KB [ 39.277019] kmalloc-1024 2850KB 2850KB [ 39.282369] kmalloc-512 2625KB 2816KB [ 39.287717] kmalloc-256 2061KB 2418KB [ 39.293065] kmalloc-128 390KB 527KB [ 39.298419] kmalloc-96 2052KB 2052KB [ 39.303765] kmalloc-64 2464KB 2464KB [ 39.309112] kmalloc-32 2394KB 2397KB [ 39.314458] kmalloc-192 901KB 904KB [ 39.319808] kmem_cache 100KB 101KB [ 39.325159] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 39.333755] [ 1781] 0 1781 5366 167 86016 0 -1000 udevd [ 39.341895] [ 3325] 0 3325 14265 186 122880 0 0 rsyslogd [ 39.350307] [ 3381] 0 3381 4725 51 86016 0 0 cron [ 39.358358] [ 3399] 0 3399 3736 45 65536 0 0 mcstransd [ 39.366842] [ 3427] 0 3427 12490 152 143360 0 -1000 sshd [ 39.374885] [ 3451] 0 3451 3694 40 73728 0 0 getty [ 39.383037] [ 3452] 0 3452 3694 41 77824 0 0 getty [ 39.391194] [ 3453] 0 3453 3694 41 77824 0 0 getty [ 39.399334] [ 3454] 0 3454 3694 40 73728 0 0 getty [ 39.407472] [ 3455] 0 3455 3694 42 73728 0 0 getty [ 39.415606] [ 3456] 0 3456 3694 40 73728 0 0 getty [ 39.423743] [ 3457] 0 3457 3649 40 69632 0 0 getty [ 39.431875] [ 3459] 0 3459 5662 454 86016 0 -1000 udevd [ 39.440023] [ 3460] 0 3460 5662 454 86016 0 -1000 udevd [ 39.448158] [ 3477] 0 3477 17821 198 184320 0 0 sshd [ 39.456208] [ 3479] 0 3479 280 1 32768 0 0 syzkaller557408 [ 39.465228] [ 3480] 0 3480 4375 0 32768 0 0 syzkaller557408 [ 39.474235] [ 3481] 0 3481 4375 0 32768 0 0 syzkaller557408 [ 39.483241] [ 3482] 0 3482 4375 524 36864 0 0 syzkaller557408 [ 39.492270] [ 3483] 0 3483 4375 524 36864 0 0 syzkaller557408 [ 39.501298] [ 3484] 0 3484 4375 524 36864 0 0 syzkaller557408 [ 39.510315] [ 3485] 0 3485 4375 524 36864 0 0 syzkaller557408 [ 39.519330] [ 3486] 0 3486 4375 524 36864 0 0 syzkaller557408 [ 39.528344] [ 3487] 0 3487 4375 524 36864 0 0 syzkaller557408 [ 39.537342] Out of memory: Kill process 3482 (syzkaller557408) score 0 or sacrifice child [ 39.545660] Killed process 3482 (syzkaller557408) total-vm:17500kB, anon-rss:2096kB, file-rss:0kB, shmem-rss:0kB [ 39.558680] oom_reaper: reaped process 3482 (syzkaller557408), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 39.572272] syzkaller557408 invoked oom-killer: gfp_mask=0x14082c2(GFP_KERNEL|__GFP_HIGHMEM|__GFP_NOWARN|__GFP_ZERO), nodemask=(null), order=0, oom_score_adj=0 [ 39.586718] syzkaller557408 cpuset=/ mems_allowed=0 [ 39.591762] CPU: 1 PID: 3483 Comm: syzkaller557408 Not tainted 4.15.0-rc7-mm1+ #53 [ 39.599453] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.608791] Call Trace: [ 39.611373] dump_stack+0x194/0x257 [ 39.614993] ? arch_local_irq_restore+0x53/0x53 [ 39.619650] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 39.624843] dump_header+0x28c/0xe2b [ 39.628558] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 39.633740] ? pagefault_out_of_memory+0x145/0x145 [ 39.638666] ? print_irqtrace_events+0x270/0x270 [ 39.643415] ? avc_has_perm_noaudit+0x37e/0x520 [ 39.648074] ? check_noncircular+0x20/0x20 [ 39.652301] ? check_noncircular+0x20/0x20 [ 39.656526] ? print_irqtrace_events+0x270/0x270 [ 39.661281] ? reacquire_held_locks+0x1f9/0x3e0 [ 39.665926] ? reacquire_held_locks+0x1f9/0x3e0 [ 39.670578] ? check_noncircular+0x20/0x20 [ 39.674787] ? task_will_free_mem+0x252/0xaa0 [ 39.679257] ? check_noncircular+0x20/0x20 [ 39.683491] ? print_irqtrace_events+0x270/0x270 [ 39.688245] ? ___ratelimit+0x30d/0x630 [ 39.692208] ? lock_downgrade+0x980/0x980 [ 39.696349] ? lock_release+0xa40/0xa40 [ 39.700317] ? mark_held_locks+0xaf/0x100 [ 39.704454] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 39.709540] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 39.714530] ? trace_hardirqs_on+0xd/0x10 [ 39.718657] ? ___ratelimit+0x95/0x630 [ 39.722521] ? idr_get_free_cmn+0xfd0/0xfd0 [ 39.726817] ? check_noncircular+0x20/0x20 [ 39.731047] oom_kill_process+0x81b/0x9f0 [ 39.735180] ? oom_badness+0xd1/0x980 [ 39.738972] ? lock_release+0xa40/0xa40 [ 39.742927] ? oom_kill_memcg_member+0x20/0x20 [ 39.747500] ? oom_evaluate_task+0x480/0x480 [ 39.751910] ? out_of_memory+0xe1c/0x1790 [ 39.756044] ? lock_downgrade+0x980/0x980 [ 39.760183] ? lock_release+0xa40/0xa40 [ 39.764143] ? find_next_bit+0xcc/0x100 [ 39.768127] ? oom_evaluate_task+0x284/0x480 [ 39.772528] out_of_memory+0x9d5/0x1790 [ 39.776505] ? oom_killer_disable+0x310/0x310 [ 39.780997] ? mutex_trylock+0x23a/0x2d0 [ 39.785039] ? __alloc_pages_slowpath+0xf63/0x2cc0 [ 39.789959] ? __lock_is_held+0xb6/0x140 [ 39.793997] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 39.799447] __alloc_pages_slowpath+0x1ce4/0x2cc0 [ 39.804325] ? warn_alloc+0x2b0/0x2b0 [ 39.808124] ? __is_insn_slot_addr+0x1fc/0x330 [ 39.812693] ? lock_downgrade+0x980/0x980 [ 39.816842] ? find_held_lock+0x35/0x1d0 [ 39.820910] ? lock_downgrade+0x980/0x980 [ 39.825049] ? lock_release+0xa40/0xa40 [ 39.829012] ? __free_insn_slot+0x5c0/0x5c0 [ 39.833322] ? is_bpf_text_address+0xa4/0x120 [ 39.837813] ? rcutorture_record_progress+0x10/0x10 [ 39.842816] ? __lock_is_held+0xb6/0x140 [ 39.846866] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 39.852752] ? __might_sleep+0x95/0x190 [ 39.856727] __alloc_pages_nodemask+0x9fb/0xd80 [ 39.861378] ? entry_SYSCALL_64_fastpath+0x29/0xa0 [ 39.866284] ? lock_downgrade+0x980/0x980 [ 39.870410] ? __alloc_pages_slowpath+0x2cc0/0x2cc0 [ 39.875420] ? do_raw_spin_trylock+0x190/0x190 [ 39.879999] ? __lock_is_held+0xb6/0x140 [ 39.884056] ? __kmalloc_node+0x33/0x70 [ 39.888011] ? __kmalloc_node+0x33/0x70 [ 39.891968] ? rcu_read_lock_sched_held+0x108/0x120 [ 39.896977] ? kasan_unpoison_shadow+0x35/0x50 [ 39.901544] alloc_pages_current+0xb6/0x1e0 [ 39.905858] __vmalloc_node_range+0x409/0x650 [ 39.910337] vzalloc+0x45/0x50 [ 39.913503] ? pcpu_mem_zalloc+0x31/0x80 [ 39.917538] pcpu_mem_zalloc+0x31/0x80 [ 39.921397] pcpu_create_chunk+0x15b/0x900 [ 39.925605] ? lock_downgrade+0x980/0x980 [ 39.929725] ? trace_event_raw_event_percpu_alloc_percpu_fail+0x2c0/0x2c0 [ 39.936633] ? lock_release+0xa40/0xa40 [ 39.940603] ? mark_held_locks+0xaf/0x100 [ 39.944740] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 39.949823] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 39.954820] pcpu_alloc+0xe63/0x10e0 [ 39.958519] ? pcpu_free_area+0xa00/0xa00 [ 39.962643] ? vmap_page_range_noflush+0x523/0x720 [ 39.967585] ? map_vm_area+0x9e/0xd0 [ 39.971296] ? __vmalloc_node_range+0x37a/0x650 [ 39.975967] ? array_map_alloc+0x351/0xa00 [ 39.980187] ? __vmalloc_node_flags_caller+0x50/0x60 [ 39.985287] __alloc_percpu_gfp+0x27/0x30 [ 39.989414] array_map_alloc+0x778/0xa00 [ 39.993454] SyS_bpf+0x7f8/0x4400 [ 39.996887] ? perf_event_mmap+0x115/0x12a0 [ 40.001194] ? bpf_prog_get+0x20/0x20 [ 40.004983] ? perf_event_fork+0x30/0x30 [ 40.009043] ? __lock_is_held+0xb6/0x140 [ 40.013089] ? check_noncircular+0x20/0x20 [ 40.017305] ? vma_wants_writenotify+0x51/0x3b0 [ 40.021969] ? __handle_mm_fault+0x80e/0x3ce0 [ 40.026440] ? check_noncircular+0x20/0x20 [ 40.030646] ? __pmd_alloc+0x4e0/0x4e0 [ 40.034510] ? vma_link+0xe9/0x170 [ 40.038035] ? find_held_lock+0x35/0x1d0 [ 40.042084] ? handle_mm_fault+0x2a0/0x930 [ 40.046293] ? find_held_lock+0x35/0x1d0 [ 40.050344] ? __do_page_fault+0x5f7/0xc90 [ 40.054565] ? lock_downgrade+0x980/0x980 [ 40.058703] ? handle_mm_fault+0x476/0x930 [ 40.062913] ? down_read_trylock+0xdb/0x170 [ 40.067218] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 40.071782] ? vmacache_find+0x5f/0x280 [ 40.075737] ? vmacache_update+0xfe/0x130 [ 40.079878] ? up_read+0x1a/0x40 [ 40.083230] ? __do_page_fault+0x3d6/0xc90 [ 40.087460] ? mm_fault_error+0x2c0/0x2c0 [ 40.091609] ? do_page_fault+0xee/0x720 [ 40.095572] ? __do_page_fault+0xc90/0xc90 [ 40.099805] ? SyS_mmap_pgoff+0x243/0x5f0 [ 40.103953] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 40.108706] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 40.113440] RIP: 0033:0x440139 [ 40.116602] RSP: 002b:00007ffe8b34ffd8 EFLAGS: 00000217 ORIG_RAX: 0000000000000141 [ 40.124292] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 0000000000440139 [ 40.131545] RDX: 000000000000002c RSI: 0000000020c47fec RDI: 0000000000000000 [ 40.138793] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 40.146035] R10: 00000000ffffffff R11: 0000000000000217 R12: 00000000004016a0 [ 40.153283] R13: 0000000000401730 R14: 0000000000000000 R15: 0000000000000000 [ 40.160649] Mem-Info: [ 40.163443] active_anon:4533 inactive_anon:61 isolated_anon:0 [ 40.163443] active_file:6 inactive_file:18 isolated_file:0 [ 40.163443] unevictable:0 dirty:0 writeback:0 unstable:0 [ 40.163443] slab_reclaimable:7262 slab_unreclaimable:83427 [ 40.163443] mapped:2 shmem:68 pagetables:306 bounce:0 [ 40.163443] free:24207 free_pcp:43 free_cma:0 [ 40.195473] Node 0 active_anon:18132kB inactive_anon:244kB active_file:24kB inactive_file:72kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:272kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 10240kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 40.222403] 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 [ 40.248572] lowmem_reserve[]: 0 2870 6381 6381 [ 40.253194] Node 0 DMA32 free:44052kB min:30332kB low:37912kB high:45492kB active_anon:28kB inactive_anon:4kB active_file:0kB inactive_file:8kB unevictable:0kB writepending:0kB present:3129332kB managed:2942332kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 40.281943] lowmem_reserve[]: 0 0 3510 3510 [ 40.286309] Node 0 Normal free:36868kB min:37084kB low:46352kB high:55620kB active_anon:18104kB inactive_anon:240kB active_file:24kB inactive_file:64kB unevictable:0kB writepending:0kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3008kB pagetables:1224kB bounce:0kB free_pcp:176kB local_pcp:168kB free_cma:0kB [ 40.315136] lowmem_reserve[]: 0 0 0 0 [ 40.318958] 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 [ 40.332584] Node 0 DMA32: 5*4kB (UME) 4*8kB (ME) 4*16kB (ME) 1*32kB (E) 6*64kB (UME) 6*128kB (UME) 5*256kB (ME) 5*512kB (UME) 4*1024kB (UME) 3*2048kB (ME) 7*4096kB (M) = 44052kB [ 40.348670] Node 0 Normal: 455*4kB (M) 369*8kB (UME) 272*16kB (UME) 146*32kB (UME) 66*64kB (UM) 32*128kB (UM) 30*256kB (M) 12*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 36964kB [ 40.364612] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 40.374245] 92 total pagecache pages [ 40.377995] 0 pages in swap cache [ 40.381458] Swap cache stats: add 0, delete 0, find 0/0 [ 40.386831] Free swap = 0kB [ 40.389856] Total swap = 0kB [ 40.392884] 1965979 pages RAM [ 40.395991] 0 pages HighMem/MovableOnly [ 40.399971] 327762 pages reserved [ 40.403422] Unreclaimable slab info: [ 40.407132] Name Used Total [ 40.412665] hashtab_node 118KB 119KB [ 40.418032] ebitmap_node 382KB 385KB [ 40.423409] avtab_node 1012KB 1013KB [ 40.428785] TIPC 1KB 7KB [ 40.434166] SCTPv6 2KB 4KB [ 40.439541] DCCPv6 2KB 7KB [ 40.444909] DCCP 2KB 6KB [ 40.450305] fib6_nodes 0KB 4KB [ 40.455679] ip6_dst_cache 5KB 7KB [ 40.461052] RAWv6 9KB 19KB [ 40.466412] UDPv6 12KB 14KB [ 40.471778] TCPv6 2KB 5KB [ 40.477164] sd_ext_cdb 0KB 3KB [ 40.482534] scsi_sense_cache 120KB 120KB [ 40.487900] virtio_scsi_cmd 16KB 16KB [ 40.493275] sgpool-128 8KB 8KB [ 40.498645] sgpool-64 4KB 6KB [ 40.504036] sgpool-32 244KB 244KB [ 40.509413] sgpool-16 60KB 60KB [ 40.514781] sgpool-8 195KB 195KB [ 40.520154] cfq_io_cq 15KB 19KB [ 40.525785] cfq_queue 24KB 30KB [ 40.531160] mqueue_inode_cache 1KB 7KB [ 40.536621] nfs_commit_data 3KB 7KB [ 40.543383] nfs_write_data 34KB 37KB [ 40.549112] jbd2_inode 1KB 3KB [ 40.554484] ext4_system_zone 0KB 3KB [ 40.559866] bio-1 1KB 3KB [ 40.565253] rpc_buffers 17KB 19KB [ 40.570609] rpc_tasks 2KB 3KB [ 40.575971] UNIX 773KB 773KB [ 40.581345] tcp_bind_bucket 0KB 4KB [ 40.586720] ip_fib_trie 0KB 3KB [ 40.592085] ip_fib_alias 0KB 3KB [ 40.597440] ip_dst_cache 3KB 8KB [ 40.602803] RAW 5KB 7KB [ 40.608172] UDP 29KB 31KB [ 40.613545] TCP 7KB 15KB [ 40.618900] hugetlbfs_inode_cache 1KB 7KB [ 40.624610] eventpoll_pwq 10KB 11KB [ 40.629974] eventpoll_epi 20KB 23KB [ 40.635349] inotify_inode_mark 3KB 11KB [ 40.640818] request_queue 34KB 68KB [ 40.646201] blkdev_ioc 21KB 27KB [ 40.651569] bio-0 382KB 382KB [ 40.656937] biovec-(1<<(21-12)) 577KB 577KB [ 40.662495] biovec-64 315KB 315KB [ 40.667868] biovec-16 41KB 41KB [ 40.673246] bio_integrity_payload 0KB 4KB [ 40.678952] khugepaged_mm_slot 0KB 3KB [ 40.684485] uid_cache 0KB 3KB [ 40.689856] dmaengine-unmap-2 0KB 3KB [ 40.695228] audit_buffer 0KB 3KB [ 40.700608] skbuff_fclone_cache 130KB 131KB [ 40.706155] skbuff_head_cache 1712KB 1713KB [ 40.711526] configfs_dir_cache 0KB 4KB [ 40.716980] file_lock_cache 157KB 158KB [ 40.722357] file_lock_ctx 1KB 3KB [ 40.727733] fsnotify_mark_connector 2KB 7KB [ 40.733629] shmem_inode_cache 1040KB 1042KB [ 40.738988] task_delay_info 296KB 367KB [ 40.744363] sigqueue 336KB 338KB [ 40.749726] kernfs_node_cache 2160KB 2161KB [ 40.755098] mnt_cache 15KB 20KB [ 40.760492] filp 8495KB 8688KB [ 40.765849] names_cache 111375KB 111405KB [ 40.771247] avc_node 37KB 39KB [ 40.776626] selinux_file_security 428KB 453KB [ 40.782351] selinux_inode_security 1929KB 1936KB [ 40.788158] key_jar 3KB 7KB [ 40.793529] nsproxy 0KB 3KB [ 40.798899] vm_area_struct 17735KB 17746KB [ 40.804290] mm_struct 4223KB 4234KB [ 40.809663] fs_cache 395KB 424KB [ 40.815032] files_cache 1484KB 1488KB [ 40.820394] signal_cache 2369KB 2371KB [ 40.825762] sighand_cache 210KB 270KB [ 40.831136] task_struct 10118KB 10118KB [ 40.836518] cred_jar 2246KB 2252KB [ 40.841877] anon_vma_chain 7340KB 7347KB [ 40.847250] anon_vma 124KB 296KB [ 40.852622] pid 206KB 260KB [ 40.857995] Acpi-Operand 106KB 170KB [ 40.863373] Acpi-Namespace 19KB 23KB [ 40.868746] numa_policy 0KB 3KB [ 40.874114] debug_objects_cache 496KB 497KB [ 40.879660] trace_event_file 145KB 147KB [ 40.885029] ftrace_event_field 257KB 259KB [ 40.890491] pool_workqueue 22KB 24KB [ 40.895866] page->ptl 2859KB 2866KB [ 40.901261] kmalloc-262144 1032KB 1032KB [ 40.906630] kmalloc-131072 650KB 650KB [ 40.911999] kmalloc-65536 264KB 264KB [ 40.917400] kmalloc-32768 627KB 627KB [ 40.922756] kmalloc-16384 148KB 148KB [ 40.928122] kmalloc-8192 503KB 503KB [ 40.933500] kmalloc-4096 8296KB 8325KB [ 40.938874] kmalloc-2048 5087KB 5087KB [ 40.944265] kmalloc-1024 2850KB 2850KB [ 40.951045] kmalloc-512 2623KB 2816KB [ 40.956427] kmalloc-256 2040KB 2400KB [ 40.963628] kmalloc-128 390KB 527KB [ 40.969032] kmalloc-96 2052KB 2052KB [ 40.974406] kmalloc-64 2466KB 2468KB [ 40.979781] kmalloc-32 2392KB 2397KB [ 40.985145] kmalloc-192 901KB 904KB [ 40.990519] kmem_cache 100KB 101KB [ 40.995886] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 41.004495] [ 1781] 0 1781 5366 167 86016 0 -1000 udevd [ 41.012645] [ 3325] 0 3325 14265 186 122880 0 0 rsyslogd [ 41.021056] [ 3381] 0 3381 4725 51 86016 0 0 cron [ 41.029130] [ 3399] 0 3399 3736 45 65536 0 0 mcstransd [ 41.038608] [ 3427] 0 3427 12490 152 143360 0 -1000 sshd [ 41.046673] [ 3451] 0 3451 3694 40 73728 0 0 getty [ 41.054837] [ 3452] 0 3452 3694 41 77824 0 0 getty [ 41.062996] [ 3453] 0 3453 3694 41 77824 0 0 getty [ 41.071156] [ 3454] 0 3454 3694 40 73728 0 0 getty [ 41.079315] [ 3455] 0 3455 3694 42 73728 0 0 getty [ 41.087470] [ 3456] 0 3456 3694 40 73728 0 0 getty [ 41.095623] [ 3457] 0 3457 3649 40 69632 0 0 getty [ 41.103766] [ 3459] 0 3459 5662 454 86016 0 -1000 udevd [ 41.111916] [ 3460] 0 3460 5662 454 86016 0 -1000 udevd [ 41.120076] [ 3477] 0 3477 17821 198 184320 0 0 sshd [ 41.128153] [ 3479] 0 3479 280 1 32768 0 0 syzkaller557408 [ 41.137184] [ 3480] 0 3480 4375 0 32768 0 0 syzkaller557408 [ 41.146215] [ 3481] 0 3481 4375 0 32768 0 0 syzkaller557408 [ 41.155255] [ 3482] 0 3482 4375 0 32768 0 0 syzkaller557408 [ 41.164296] [ 3483] 0 3483 4375 524 36864 0 0 syzkaller557408 [ 41.173323] [ 3484] 0 3484 4375 524 36864 0 0 syzkaller557408 [ 41.182354] [ 3485] 0 3485 4375 524 36864 0 0 syzkaller557408 [ 41.191381] [ 3486] 0 3486 4375 524 36864 0 0 syzkaller557408 [ 41.200409] [ 3487] 0 3487 4375 524 36864 0 0 syzkaller557408 [ 41.209430] Out of memory: Kill process 3483 (syzkaller557408) score 0 or sacrifice child [ 41.217771] Killed process 3483 (syzkaller557408) total-vm:17500kB, anon-rss:2096kB, file-rss:0kB, shmem-rss:0kB [ 41.228801] oom_reaper: reaped process 3483 (syzkaller557408), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 41.346630] rsyslogd invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=0 [ 41.367199] rsyslogd cpuset=/ mems_allowed=0 [ 41.371675] CPU: 0 PID: 3329 Comm: rsyslogd Not tainted 4.15.0-rc7-mm1+ #53 [ 41.378754] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.388090] Call Trace: [ 41.390663] dump_stack+0x194/0x257 [ 41.394278] ? arch_local_irq_restore+0x53/0x53 [ 41.398937] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 41.404122] dump_header+0x28c/0xe2b [ 41.407833] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 41.413011] ? pagefault_out_of_memory+0x145/0x145 [ 41.417930] ? print_irqtrace_events+0x270/0x270 [ 41.422679] ? avc_has_perm_noaudit+0x37e/0x520 [ 41.427332] ? check_noncircular+0x20/0x20 [ 41.431552] ? check_noncircular+0x20/0x20 [ 41.435773] ? print_irqtrace_events+0x270/0x270 [ 41.440518] ? reacquire_held_locks+0x1f9/0x3e0 [ 41.445166] ? reacquire_held_locks+0x1f9/0x3e0 [ 41.449821] ? check_noncircular+0x20/0x20 [ 41.454150] ? task_will_free_mem+0x252/0xaa0 [ 41.458623] ? check_noncircular+0x20/0x20 [ 41.462847] ? print_irqtrace_events+0x270/0x270 [ 41.467602] ? ___ratelimit+0x30d/0x630 [ 41.471562] ? lock_downgrade+0x980/0x980 [ 41.475699] ? lock_release+0xa40/0xa40 [ 41.479667] ? mark_held_locks+0xaf/0x100 [ 41.483916] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 41.489003] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 41.494001] ? trace_hardirqs_on+0xd/0x10 [ 41.498139] ? ___ratelimit+0x95/0x630 [ 41.502015] ? idr_get_free_cmn+0xfd0/0xfd0 [ 41.506319] ? check_noncircular+0x20/0x20 [ 41.510547] oom_kill_process+0x81b/0x9f0 [ 41.514680] ? oom_badness+0xd1/0x980 [ 41.518457] ? lock_release+0xa40/0xa40 [ 41.522420] ? oom_kill_memcg_member+0x20/0x20 [ 41.526994] ? oom_evaluate_task+0x480/0x480 [ 41.531395] ? out_of_memory+0xe1c/0x1790 [ 41.535527] ? lock_downgrade+0x980/0x980 [ 41.539662] ? lock_release+0xa40/0xa40 [ 41.543616] ? find_next_bit+0xcc/0x100 [ 41.547588] ? oom_evaluate_task+0x284/0x480 [ 41.551989] out_of_memory+0x9d5/0x1790 [ 41.555942] ? usleep_range+0x190/0x190 [ 41.559913] ? oom_killer_disable+0x310/0x310 [ 41.564397] ? mutex_trylock+0x23a/0x2d0 [ 41.568439] ? __alloc_pages_slowpath+0xf63/0x2cc0 [ 41.573351] ? __lock_is_held+0xb6/0x140 [ 41.577397] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 41.582850] __alloc_pages_slowpath+0x1ce4/0x2cc0 [ 41.587692] ? trace_hardirqs_on+0xd/0x10 [ 41.591856] ? warn_alloc+0x2b0/0x2b0 [ 41.595642] ? lock_downgrade+0x980/0x980 [ 41.599790] ? radix_tree_lookup_slot+0x99/0xe0 [ 41.604462] ? find_get_entry+0x53c/0x9e0 [ 41.608632] ? __lock_acquire+0x664/0x3e00 [ 41.612904] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 41.618789] ? __might_sleep+0x95/0x190 [ 41.622757] __alloc_pages_nodemask+0x9fb/0xd80 [ 41.627421] ? __alloc_pages_slowpath+0x2cc0/0x2cc0 [ 41.632426] ? add_to_page_cache_lru+0x510/0x510 [ 41.637175] ? check_noncircular+0x20/0x20 [ 41.641389] ? check_noncircular+0x20/0x20 [ 41.645604] ? __schedule+0x8f3/0x2060 [ 41.649474] ? account_entity_enqueue+0x3c8/0x6e0 [ 41.654309] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 41.659081] alloc_pages_current+0xb6/0x1e0 [ 41.663394] __page_cache_alloc+0x334/0x500 [ 41.667701] ? rcu_read_lock_held+0xa9/0xc0 [ 41.672011] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 41.679373] filemap_fault+0xf34/0x1ca0 [ 41.683329] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 41.688525] ? __lock_page_or_retry+0x4f0/0x4f0 [ 41.693191] ? filemap_map_pages+0x942/0x15d0 [ 41.697687] ? find_get_entries_tag+0xeb0/0xeb0 [ 41.702345] ? do_raw_spin_trylock+0x190/0x190 [ 41.706905] ? do_raw_spin_trylock+0x190/0x190 [ 41.711492] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 41.716578] ? check_noncircular+0x20/0x20 [ 41.720791] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 41.725790] ? trace_hardirqs_on+0xd/0x10 [ 41.729922] ? print_irqtrace_events+0x270/0x270 [ 41.734660] ? print_irqtrace_events+0x270/0x270 [ 41.739431] ? lock_acquire+0x1d5/0x580 [ 41.743381] ? lock_acquire+0x1d5/0x580 [ 41.747335] ? ext4_filemap_fault+0x7a/0xad [ 41.751650] ? lock_release+0xa40/0xa40 [ 41.755608] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 41.761483] ? rcu_note_context_switch+0x710/0x710 [ 41.766405] ? __might_sleep+0x95/0x190 [ 41.770366] ? down_read+0x96/0x150 [ 41.773971] ? ext4_filemap_fault+0x7a/0xad [ 41.778276] ? __down_interruptible+0x6b0/0x6b0 [ 41.782948] ext4_filemap_fault+0x82/0xad [ 41.787086] __do_fault+0xeb/0x315 [ 41.790613] ? pte_offset_kernel+0xc7/0xc7 [ 41.794831] ? do_raw_spin_trylock+0x190/0x190 [ 41.799407] ? check_noncircular+0x20/0x20 [ 41.803633] __handle_mm_fault+0x1d8f/0x3ce0 [ 41.808034] ? __pmd_alloc+0x4e0/0x4e0 [ 41.811921] ? find_held_lock+0x35/0x1d0 [ 41.815980] ? handle_mm_fault+0x2a0/0x930 [ 41.820197] ? lock_downgrade+0x980/0x980 [ 41.824367] handle_mm_fault+0x38f/0x930 [ 41.828408] ? down_read_trylock+0xdb/0x170 [ 41.832718] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 41.837278] ? vmacache_find+0x5f/0x280 [ 41.841237] ? find_vma+0x30/0x150 [ 41.844769] __do_page_fault+0x5c9/0xc90 [ 41.848827] ? mm_fault_error+0x2c0/0x2c0 [ 41.852961] ? avc_policy_seqno+0x9/0x20 [ 41.857015] do_page_fault+0xee/0x720 [ 41.860802] ? __do_page_fault+0xc90/0xc90 [ 41.865029] ? SyS_futex+0x269/0x390 [ 41.868732] ? do_futex+0x22a0/0x22a0 [ 41.872512] ? SyS_read+0x184/0x220 [ 41.876122] ? retint_user+0x18/0x18 [ 41.879820] ? page_fault+0x36/0x60 [ 41.883429] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 41.888257] ? page_fault+0x36/0x60 [ 41.891870] page_fault+0x4c/0x60 [ 41.895304] RIP: 0033:0x7f1458bb3bb0 [ 41.898995] RSP: 002b:00007f1457583d78 EFLAGS: 00010206 [ 41.904338] RAX: 0000000000000009 RBX: 00007f1458bb650c RCX: 656c6c616b7a7973 [ 41.911584] RDX: 00000000013b6fad RSI: 00000000013831d9 RDI: 00007f1458bb650c [ 41.918832] RBP: 0000000000000006 R08: 00000000013831d0 R09: 00007f1459962250 [ 41.926083] R10: 6320383034373535 R11: 00007f1459994a50 R12: 0000000000000000 [ 41.933330] R13: 0000000000000009 R14: 000000000000005a R15: 00007f1458db8668 [ 41.940730] Mem-Info: [ 41.944254] active_anon:4016 inactive_anon:61 isolated_anon:0 [ 41.944254] active_file:12 inactive_file:11 isolated_file:1 [ 41.944254] unevictable:0 dirty:0 writeback:0 unstable:0 [ 41.944254] slab_reclaimable:7262 slab_unreclaimable:83415 [ 41.944254] mapped:2 shmem:68 pagetables:305 bounce:0 [ 41.944254] free:24247 free_pcp:41 free_cma:0 [ 41.979673] Node 0 active_anon:16064kB inactive_anon:244kB active_file:48kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:272kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 8192kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 42.006604] 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 [ 42.032761] lowmem_reserve[]: 0 2870 6381 6381 [ 42.037385] Node 0 DMA32 free:44052kB min:30332kB low:37912kB high:45492kB active_anon:28kB inactive_anon:4kB active_file:8kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2942332kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 42.064662] lowmem_reserve[]: 0 0 3510 3510 [ 42.069039] Node 0 Normal free:37028kB min:37084kB low:46352kB high:55620kB active_anon:16036kB inactive_anon:240kB active_file:48kB inactive_file:40kB unevictable:0kB writepending:0kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3008kB pagetables:1220kB bounce:0kB free_pcp:164kB local_pcp:44kB free_cma:0kB [ 42.099364] lowmem_reserve[]: 0 0 0 0 [ 42.103205] 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 [ 42.116851] Node 0 DMA32: 5*4kB (UME) 4*8kB (ME) 4*16kB (ME) 1*32kB (E) 6*64kB (UME) 6*128kB (UME) 5*256kB (ME) 5*512kB (UME) 4*1024kB (UME) 3*2048kB (ME) 7*4096kB (M) = 44052kB [ 42.132939] Node 0 Normal: 455*4kB (M) 362*8kB (UME) 272*16kB (UME) 145*32kB (ME) 65*64kB (M) 32*128kB (UM) 31*256kB (UM) 12*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 37068kB [ 42.149075] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 42.161480] 92 total pagecache pages [ 42.171350] 0 pages in swap cache [ 42.174818] Swap cache stats: add 0, delete 0, find 0/0 [ 42.188326] Free swap = 0kB [ 42.193418] Total swap = 0kB [ 42.196431] 1965979 pages RAM [ 42.199520] 0 pages HighMem/MovableOnly [ 42.204067] 327762 pages reserved [ 42.207851] Unreclaimable slab info: [ 42.211545] Name Used Total [ 42.217076] hashtab_node 118KB 119KB [ 42.222420] ebitmap_node 382KB 385KB [ 42.227767] avtab_node 1012KB 1013KB [ 42.233545] TIPC 1KB 7KB [ 42.238897] SCTPv6 2KB 4KB [ 42.244243] DCCPv6 2KB 7KB [ 42.249588] DCCP 2KB 6KB [ 42.254948] fib6_nodes 0KB 4KB [ 42.260291] ip6_dst_cache 7KB 7KB [ 42.265636] RAWv6 9KB 19KB [ 42.270986] UDPv6 12KB 14KB [ 42.276355] TCPv6 2KB 5KB [ 42.281713] sd_ext_cdb 0KB 3KB [ 42.287058] scsi_sense_cache 119KB 120KB [ 42.292412] virtio_scsi_cmd 16KB 16KB [ 42.298737] sgpool-128 8KB 8KB [ 42.304704] sgpool-64 4KB 6KB [ 42.310052] sgpool-32 243KB 244KB [ 42.315398] sgpool-16 58KB 60KB [ 42.320743] sgpool-8 193KB 195KB [ 42.326099] cfq_io_cq 15KB 19KB [ 42.331441] cfq_queue 24KB 30KB [ 42.336784] mqueue_inode_cache 1KB 7KB [ 42.342215] nfs_commit_data 3KB 7KB [ 42.347580] nfs_write_data 34KB 37KB [ 42.352929] jbd2_inode 1KB 3KB [ 42.358277] ext4_system_zone 0KB 3KB [ 42.364102] bio-1 1KB 3KB [ 42.369465] rpc_buffers 17KB 19KB [ 42.374815] rpc_tasks 2KB 3KB [ 42.380165] UNIX 773KB 773KB [ 42.385516] tcp_bind_bucket 0KB 4KB [ 42.391131] ip_fib_trie 0KB 3KB [ 42.396480] ip_fib_alias 0KB 3KB [ 42.401823] ip_dst_cache 3KB 8KB [ 42.407304] RAW 5KB 7KB [ 42.412665] UDP 29KB 31KB [ 42.418025] TCP 7KB 15KB [ 42.423977] hugetlbfs_inode_cache 1KB 7KB [ 42.430800] eventpoll_pwq 10KB 11KB [ 42.436145] eventpoll_epi 20KB 23KB [ 42.441493] inotify_inode_mark 3KB 11KB [ 42.446929] request_queue 31KB 45KB [ 42.452985] blkdev_ioc 21KB 27KB [ 42.459460] bio-0 381KB 382KB [ 42.464806] biovec-(1<<(21-12)) 577KB 577KB [ 42.470343] biovec-64 309KB 315KB [ 42.475707] biovec-16 40KB 41KB [ 42.481054] bio_integrity_payload 0KB 4KB [ 42.486749] khugepaged_mm_slot 0KB 3KB [ 42.492186] uid_cache 0KB 3KB [ 42.497958] dmaengine-unmap-2 0KB 3KB [ 42.503305] audit_buffer 0KB 3KB [ 42.508652] skbuff_fclone_cache 130KB 131KB [ 42.514193] skbuff_head_cache 1713KB 1713KB [ 42.519549] configfs_dir_cache 0KB 4KB [ 42.524985] file_lock_cache 157KB 158KB [ 42.530333] file_lock_ctx 1KB 3KB [ 42.535687] fsnotify_mark_connector 2KB 7KB [ 42.541562] shmem_inode_cache 1040KB 1042KB [ 42.546907] task_delay_info 296KB 367KB [ 42.552255] sigqueue 335KB 338KB [ 42.557600] kernfs_node_cache 2160KB 2161KB [ 42.562950] mnt_cache 15KB 20KB [ 42.568293] filp 8488KB 8681KB [ 42.573639] names_cache 111367KB 111405KB [ 42.578986] avc_node 37KB 39KB [ 42.584332] selinux_file_security 424KB 453KB [ 42.590033] selinux_inode_security 1929KB 1936KB [ 42.595813] key_jar 3KB 7KB [ 42.601161] nsproxy 0KB 3KB [ 42.606513] vm_area_struct 17732KB 17746KB [ 42.611859] mm_struct 4223KB 4234KB [ 42.617218] fs_cache 395KB 424KB [ 42.622563] files_cache 1484KB 1488KB [ 42.628365] signal_cache 2369KB 2371KB [ 42.633719] sighand_cache 210KB 270KB [ 42.640192] task_struct 10112KB 10112KB [ 42.645538] cred_jar 2245KB 2252KB [ 42.650882] anon_vma_chain 7340KB 7347KB [ 42.656248] anon_vma 124KB 296KB [ 42.661599] pid 206KB 260KB [ 42.666956] Acpi-Operand 106KB 170KB [ 42.672311] Acpi-Namespace 19KB 23KB [ 42.677661] numa_policy 0KB 3KB [ 42.683019] debug_objects_cache 496KB 497KB [ 42.688544] trace_event_file 145KB 147KB [ 42.693897] ftrace_event_field 257KB 259KB [ 42.699332] pool_workqueue 22KB 24KB [ 42.704708] page->ptl 2858KB 2866KB [ 42.710082] kmalloc-262144 1032KB 1032KB [ 42.715443] kmalloc-131072 650KB 650KB [ 42.720844] kmalloc-65536 264KB 264KB [ 42.726212] kmalloc-32768 627KB 627KB [ 42.731583] kmalloc-16384 148KB 148KB [ 42.736962] kmalloc-8192 503KB 503KB [ 42.742334] kmalloc-4096 8287KB 8325KB [ 42.747711] kmalloc-2048 5085KB 5087KB [ 42.753087] kmalloc-1024 2850KB 2850KB [ 42.758464] kmalloc-512 2632KB 2816KB [ 42.764623] kmalloc-256 2037KB 2396KB [ 42.770007] kmalloc-128 390KB 527KB [ 42.775400] kmalloc-96 2056KB 2056KB [ 42.780772] kmalloc-64 2466KB 2468KB [ 42.786141] kmalloc-32 2390KB 2397KB [ 42.791508] kmalloc-192 901KB 904KB [ 42.796880] kmem_cache 100KB 101KB [ 42.802248] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 42.810857] [ 1781] 0 1781 5366 167 86016 0 -1000 udevd [ 42.819044] [ 3325] 0 3325 14265 186 122880 0 0 rsyslogd [ 42.827466] [ 3381] 0 3381 4725 51 86016 0 0 cron [ 42.835541] [ 3399] 0 3399 3736 45 65536 0 0 mcstransd [ 42.844049] [ 3427] 0 3427 12490 152 143360 0 -1000 sshd [ 42.852127] [ 3451] 0 3451 3694 40 73728 0 0 getty [ 42.860293] [ 3452] 0 3452 3694 41 77824 0 0 getty [ 42.868491] [ 3453] 0 3453 3694 41 77824 0 0 getty [ 42.876658] [ 3454] 0 3454 3694 40 73728 0 0 getty [ 42.884839] [ 3455] 0 3455 3694 42 73728 0 0 getty [ 42.893004] [ 3456] 0 3456 3694 40 73728 0 0 getty [ 42.901207] [ 3457] 0 3457 3649 40 69632 0 0 getty [ 42.909371] [ 3459] 0 3459 5662 454 86016 0 -1000 udevd [ 42.917534] [ 3460] 0 3460 5662 454 86016 0 -1000 udevd [ 42.925709] [ 3477] 0 3477 17821 198 184320 0 0 sshd [ 42.933801] [ 3479] 0 3479 280 1 32768 0 0 syzkaller557408 [ 42.942842] [ 3480] 0 3480 4375 0 32768 0 0 syzkaller557408 [ 42.951879] [ 3481] 0 3481 4375 0 32768 0 0 syzkaller557408 [ 42.960914] [ 3482] 0 3482 4375 0 32768 0 0 syzkaller557408 [ 42.969953] [ 3483] 0 3483 4375 0 32768 0 0 syzkaller557408 [ 42.978987] [ 3484] 0 3484 4375 524 36864 0 0 syzkaller557408 [ 42.988042] [ 3485] 0 3485 4375 524 36864 0 0 syzkaller557408 [ 42.997079] [ 3486] 0 3486 4375 524 36864 0 0 syzkaller557408 [ 43.006110] [ 3487] 0 3487 4375 524 36864 0 0 syzkaller557408 [ 43.015134] Out of memory: Kill process 3484 (syzkaller557408) score 0 or sacrifice child [ 43.028167] Killed process 3484 (syzkaller557408) total-vm:17500kB, anon-rss:2096kB, file-rss:0kB, shmem-rss:0kB [ 43.040694] oom_reaper: reaped process 3484 (syzkaller557408), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 43.052749] syzkaller557408 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 43.065401] syzkaller557408 cpuset=/ mems_allowed=0 [ 43.070461] CPU: 0 PID: 3487 Comm: syzkaller557408 Not tainted 4.15.0-rc7-mm1+ #53 [ 43.078151] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.087489] Call Trace: [ 43.090067] dump_stack+0x194/0x257 [ 43.093688] ? arch_local_irq_restore+0x53/0x53 [ 43.098344] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 43.103531] dump_header+0x28c/0xe2b [ 43.107237] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 43.112415] ? pagefault_out_of_memory+0x145/0x145 [ 43.117334] ? print_irqtrace_events+0x270/0x270 [ 43.122086] ? avc_has_perm_noaudit+0x37e/0x520 [ 43.126747] ? check_noncircular+0x20/0x20 [ 43.130980] ? check_noncircular+0x20/0x20 [ 43.135205] ? print_irqtrace_events+0x270/0x270 [ 43.139956] ? reacquire_held_locks+0x1f9/0x3e0 [ 43.144605] ? reacquire_held_locks+0x1f9/0x3e0 [ 43.149260] ? check_noncircular+0x20/0x20 [ 43.153501] ? task_will_free_mem+0x252/0xaa0 [ 43.157981] ? check_noncircular+0x20/0x20 [ 43.162212] ? print_irqtrace_events+0x270/0x270 [ 43.166972] ? ___ratelimit+0x30d/0x630 [ 43.170936] ? lock_downgrade+0x980/0x980 [ 43.175080] ? lock_release+0xa40/0xa40 [ 43.179054] ? mark_held_locks+0xaf/0x100 [ 43.183195] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 43.188292] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 43.193297] ? trace_hardirqs_on+0xd/0x10 [ 43.197438] ? ___ratelimit+0x95/0x630 [ 43.201316] ? idr_get_free_cmn+0xfd0/0xfd0 [ 43.205627] ? check_noncircular+0x20/0x20 [ 43.209867] oom_kill_process+0x81b/0x9f0 [ 43.213999] ? oom_badness+0xd1/0x980 [ 43.217785] ? lock_release+0xa40/0xa40 [ 43.221750] ? oom_kill_memcg_member+0x20/0x20 [ 43.226322] ? oom_evaluate_task+0x480/0x480 [ 43.230729] ? out_of_memory+0xe1c/0x1790 [ 43.234862] ? lock_downgrade+0x980/0x980 [ 43.239000] ? lock_release+0xa40/0xa40 [ 43.242956] ? find_next_bit+0xcc/0x100 [ 43.246928] ? oom_evaluate_task+0x284/0x480 [ 43.251329] out_of_memory+0x9d5/0x1790 [ 43.255285] ? usleep_range+0x190/0x190 [ 43.259254] ? oom_killer_disable+0x310/0x310 [ 43.263745] ? mutex_trylock+0x23a/0x2d0 [ 43.267790] ? __alloc_pages_slowpath+0xf63/0x2cc0 [ 43.272709] ? __lock_is_held+0xb6/0x140 [ 43.276759] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 43.282214] __alloc_pages_slowpath+0x1ce4/0x2cc0 [ 43.287089] ? warn_alloc+0x2b0/0x2b0 [ 43.290873] ? check_noncircular+0x20/0x20 [ 43.295098] ? check_preempt_wakeup+0x426/0xb20 [ 43.299762] ? print_irqtrace_events+0x270/0x270 [ 43.304501] ? put_prev_task_fair+0x80/0x80 [ 43.308821] ? find_held_lock+0x35/0x1d0 [ 43.312880] ? __mutex_lock+0x5bd/0x1a80 [ 43.316937] ? __lock_acquire+0x664/0x3e00 [ 43.321159] ? lock_release+0xa40/0xa40 [ 43.325122] ? memset+0x31/0x40 [ 43.328389] ? do_raw_spin_trylock+0x190/0x190 [ 43.332990] ? __lock_is_held+0xb6/0x140 [ 43.337061] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 43.342929] ? find_held_lock+0x35/0x1d0 [ 43.346992] ? __might_sleep+0x95/0x190 [ 43.350960] __alloc_pages_nodemask+0x9fb/0xd80 [ 43.355625] ? __alloc_pages_slowpath+0x2cc0/0x2cc0 [ 43.360646] ? pcpu_chunk_refresh_hint+0x425/0x570 [ 43.365571] ? print_irqtrace_events+0x270/0x270 [ 43.370327] ? __lock_is_held+0xb6/0x140 [ 43.374388] ? find_next_bit+0xcc/0x100 [ 43.378884] pcpu_populate_chunk+0x1b3/0x880 [ 43.383718] ? find_next_bit+0x97/0x100 [ 43.387698] pcpu_alloc+0x978/0x10e0 [ 43.391419] ? pcpu_free_area+0xa00/0xa00 [ 43.396158] ? __pte_alloc_kernel+0x1bd/0x2a0 [ 43.400652] ? vmap_page_range_noflush+0x523/0x720 [ 43.405584] ? retint_kernel+0x10/0x10 [ 43.409461] ? retint_kernel+0x10/0x10 [ 43.413336] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 43.418340] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 43.423096] ? retint_kernel+0x10/0x10 [ 43.426993] __alloc_percpu_gfp+0x27/0x30 [ 43.431131] array_map_alloc+0x778/0xa00 [ 43.435213] SyS_bpf+0x7f8/0x4400 [ 43.438658] ? perf_event_mmap+0x115/0x12a0 [ 43.442972] ? bpf_prog_get+0x20/0x20 [ 43.446761] ? perf_event_fork+0x30/0x30 [ 43.450823] ? __lock_is_held+0xb6/0x140 [ 43.454894] ? check_noncircular+0x20/0x20 [ 43.459113] ? vma_wants_writenotify+0x51/0x3b0 [ 43.463777] ? __handle_mm_fault+0x80e/0x3ce0 [ 43.468269] ? check_noncircular+0x20/0x20 [ 43.472485] ? __pmd_alloc+0x4e0/0x4e0 [ 43.476354] ? vma_link+0xe9/0x170 [ 43.479891] ? find_held_lock+0x35/0x1d0 [ 43.483948] ? handle_mm_fault+0x2a0/0x930 [ 43.488175] ? find_held_lock+0x35/0x1d0 [ 43.492234] ? __do_page_fault+0x5f7/0xc90 [ 43.496459] ? lock_downgrade+0x980/0x980 [ 43.500607] ? handle_mm_fault+0x476/0x930 [ 43.504828] ? down_read_trylock+0xdb/0x170 [ 43.509144] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 43.513710] ? vmacache_find+0x5f/0x280 [ 43.517670] ? vmacache_update+0xfe/0x130 [ 43.521813] ? up_read+0x1a/0x40 [ 43.525165] ? __do_page_fault+0x3d6/0xc90 [ 43.529398] ? mm_fault_error+0x2c0/0x2c0 [ 43.533568] ? do_page_fault+0xee/0x720 [ 43.537531] ? __do_page_fault+0xc90/0xc90 [ 43.541769] ? SyS_mmap_pgoff+0x243/0x5f0 [ 43.545921] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 43.550678] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 43.555418] RIP: 0033:0x440139 [ 43.558588] RSP: 002b:00007ffe8b34ffd8 EFLAGS: 00000217 ORIG_RAX: 0000000000000141 [ 43.566282] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 0000000000440139 [ 43.573538] RDX: 000000000000002c RSI: 0000000020c47fec RDI: 0000000000000000 [ 43.580793] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 43.588046] R10: 00000000ffffffff R11: 0000000000000217 R12: 00000000004016a0 [ 43.596084] R13: 0000000000401730 R14: 0000000000000000 R15: 0000000000000000 [ 43.603466] Mem-Info: [ 43.606560] active_anon:3500 inactive_anon:61 isolated_anon:0 [ 43.606560] active_file:34 inactive_file:0 isolated_file:0 [ 43.606560] unevictable:0 dirty:0 writeback:0 unstable:0 [ 43.606560] slab_reclaimable:7262 slab_unreclaimable:83402 [ 43.606560] mapped:2 shmem:68 pagetables:305 bounce:0 [ 43.606560] free:22692 free_pcp:19 free_cma:0 [ 43.640441] Node 0 active_anon:14000kB inactive_anon:244kB active_file:136kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:272kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 8192kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 43.668220] 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 [ 43.694400] lowmem_reserve[]: 0 2870 6381 6381 [ 43.699038] Node 0 DMA32 free:44052kB min:30332kB low:37912kB high:45492kB active_anon:28kB inactive_anon:4kB active_file:4kB inactive_file:4kB unevictable:0kB writepending:0kB present:3129332kB managed:2942332kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 43.731461] lowmem_reserve[]: 0 0 3510 3510 [ 43.736607] Node 0 Normal free:30808kB min:37084kB low:46352kB high:55620kB active_anon:13972kB inactive_anon:240kB active_file:132kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3008kB pagetables:1220kB bounce:0kB free_pcp:76kB local_pcp:44kB free_cma:0kB [ 43.765670] lowmem_reserve[]: 0 0 0 0 [ 43.769499] 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 [ 43.783163] Node 0 DMA32: 5*4kB (UME) 4*8kB (ME) 4*16kB (ME) 1*32kB (E) 6*64kB (UME) 6*128kB (UME) 5*256kB (ME) 5*512kB (UME) 4*1024kB (UME) 3*2048kB (ME) 7*4096kB (M) = 44052kB [ 43.799281] Node 0 Normal: 408*4kB (M) 325*8kB (UME) 239*16kB (UME) 132*32kB (UME) 58*64kB (M) 28*128kB (M) 24*256kB (M) 6*512kB (UM) 0*1024kB 1*2048kB (M) 0*4096kB = 30840kB [ 43.815112] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 43.823707] 92 total pagecache pages [ 43.827441] 0 pages in swap cache [ 43.830903] Swap cache stats: add 0, delete 0, find 0/0 [ 43.836272] Free swap = 0kB [ 43.839295] Total swap = 0kB [ 43.842317] 1965979 pages RAM [ 43.845426] 0 pages HighMem/MovableOnly [ 43.849403] 327762 pages reserved [ 43.852863] Unreclaimable slab info: [ 43.856584] Name Used Total [ 43.862130] hashtab_node 118KB 119KB [ 43.868305] ebitmap_node 382KB 385KB [ 43.873687] avtab_node 1012KB 1013KB [ 43.879069] TIPC 1KB 7KB [ 43.884447] SCTPv6 2KB 4KB [ 43.889825] DCCPv6 2KB 7KB [ 43.895198] DCCP 2KB 6KB [ 43.900587] fib6_nodes 0KB 4KB [ 43.905985] ip6_dst_cache 7KB 7KB [ 43.911364] RAWv6 9KB 19KB [ 43.916738] UDPv6 12KB 14KB [ 43.922119] TCPv6 2KB 5KB [ 43.927505] sd_ext_cdb 0KB 3KB [ 43.932887] scsi_sense_cache 119KB 120KB [ 43.938258] virtio_scsi_cmd 16KB 16KB [ 43.943638] sgpool-128 8KB 8KB [ 43.949032] sgpool-64 4KB 6KB [ 43.954400] sgpool-32 241KB 244KB [ 43.959767] sgpool-16 58KB 60KB [ 43.965137] sgpool-8 193KB 195KB [ 43.970510] cfq_io_cq 15KB 19KB [ 43.975886] cfq_queue 24KB 30KB [ 43.981262] mqueue_inode_cache 1KB 7KB [ 43.986733] nfs_commit_data 3KB 7KB [ 43.992113] nfs_write_data 34KB 37KB [ 43.997488] jbd2_inode 1KB 3KB [ 44.003651] ext4_system_zone 0KB 3KB [ 44.009053] bio-1 1KB 3KB [ 44.014437] rpc_buffers 17KB 19KB [ 44.019813] rpc_tasks 2KB 3KB [ 44.025183] UNIX 773KB 773KB [ 44.030558] tcp_bind_bucket 0KB 4KB [ 44.035932] ip_fib_trie 0KB 3KB [ 44.041305] ip_fib_alias 0KB 3KB [ 44.046676] ip_dst_cache 3KB 8KB [ 44.052052] RAW 5KB 7KB [ 44.057426] UDP 29KB 31KB [ 44.062831] TCP 7KB 15KB [ 44.069076] hugetlbfs_inode_cache 1KB 7KB [ 44.076483] eventpoll_pwq 10KB 11KB [ 44.082739] eventpoll_epi 20KB 23KB [ 44.088878] inotify_inode_mark 3KB 11KB [ 44.095214] request_queue 31KB 45KB [ 44.101413] blkdev_ioc 21KB 27KB [ 44.110591] bio-0 381KB 382KB [ 44.116851] biovec-(1<<(21-12)) 577KB 577KB [ 44.123238] biovec-64 309KB 315KB [ 44.129359] biovec-16 39KB 41KB [ 44.135511] bio_integrity_payload 0KB 4KB [ 44.142978] khugepaged_mm_slot 0KB 3KB [ 44.149366] uid_cache 0KB 3KB [ 44.155619] dmaengine-unmap-2 0KB 3KB [ 44.161868] audit_buffer 0KB 3KB [ 44.167981] skbuff_fclone_cache 130KB 131KB [ 44.174393] skbuff_head_cache 1713KB 1713KB [ 44.180641] configfs_dir_cache 0KB 4KB [ 44.186129] file_lock_cache 157KB 158KB [ 44.191513] file_lock_ctx 1KB 3KB [ 44.196889] fsnotify_mark_connector 2KB 7KB [ 44.202795] shmem_inode_cache 1040KB 1042KB [ 44.208186] task_delay_info 296KB 367KB [ 44.213566] sigqueue 335KB 338KB [ 44.218938] kernfs_node_cache 2160KB 2161KB [ 44.224313] mnt_cache 15KB 20KB [ 44.229689] filp 8481KB 8673KB [ 44.235064] names_cache 111358KB 111396KB [ 44.240445] avc_node 37KB 39KB [ 44.245815] selinux_file_security 423KB 453KB [ 44.251532] selinux_inode_security 1929KB 1936KB [ 44.257344] key_jar 3KB 7KB [ 44.262715] nsproxy 0KB 3KB [ 44.268070] vm_area_struct 17732KB 17746KB [ 44.273461] mm_struct 4223KB 4234KB [ 44.278835] fs_cache 395KB 424KB [ 44.284205] files_cache 1484KB 1488KB [ 44.289578] signal_cache 2369KB 2371KB [ 44.294951] sighand_cache 210KB 270KB [ 44.300321] task_struct 10112KB 10112KB [ 44.305696] cred_jar 2245KB 2252KB [ 44.311065] anon_vma_chain 7339KB 7347KB [ 44.316441] anon_vma 124KB 296KB [ 44.321811] pid 206KB 260KB [ 44.327182] Acpi-Operand 106KB 170KB [ 44.332554] Acpi-Namespace 19KB 23KB [ 44.337929] numa_policy 0KB 3KB [ 44.343298] debug_objects_cache 496KB 497KB [ 44.348843] trace_event_file 145KB 147KB [ 44.354211] ftrace_event_field 257KB 259KB [ 44.359667] pool_workqueue 22KB 24KB [ 44.365041] page->ptl 2858KB 2866KB [ 44.370434] kmalloc-262144 1032KB 1032KB [ 44.375805] kmalloc-131072 650KB 650KB [ 44.381175] kmalloc-65536 264KB 264KB [ 44.386546] kmalloc-32768 627KB 627KB [ 44.391918] kmalloc-16384 148KB 148KB [ 44.397290] kmalloc-8192 503KB 503KB [ 44.402666] kmalloc-4096 8279KB 8317KB [ 44.408034] kmalloc-2048 5083KB 5087KB [ 44.413402] kmalloc-1024 2850KB 2850KB [ 44.418770] kmalloc-512 2631KB 2816KB [ 44.424146] kmalloc-256 2033KB 2392KB [ 44.429518] kmalloc-128 390KB 527KB [ 44.434888] kmalloc-96 2056KB 2056KB [ 44.440258] kmalloc-64 2465KB 2468KB [ 44.445627] kmalloc-32 2388KB 2397KB [ 44.450995] kmalloc-192 901KB 904KB [ 44.456367] kmem_cache 100KB 101KB [ 44.461734] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 44.470365] [ 1781] 0 1781 5366 167 86016 0 -1000 udevd [ 44.478524] [ 3325] 0 3325 14265 186 122880 0 0 rsyslogd [ 44.486946] [ 3381] 0 3381 4725 51 86016 0 0 cron [ 44.495050] [ 3399] 0 3399 3736 45 65536 0 0 mcstransd [ 44.503551] [ 3427] 0 3427 12490 152 143360 0 -1000 sshd [ 44.511619] [ 3451] 0 3451 3694 40 73728 0 0 getty [ 44.519770] [ 3452] 0 3452 3694 41 77824 0 0 getty [ 44.527920] [ 3453] 0 3453 3694 41 77824 0 0 getty [ 44.536074] [ 3454] 0 3454 3694 40 73728 0 0 getty [ 44.544233] [ 3455] 0 3455 3694 42 73728 0 0 getty [ 44.552381] [ 3456] 0 3456 3694 40 73728 0 0 getty [ 44.560532] [ 3457] 0 3457 3649 40 69632 0 0 getty [ 44.568682] [ 3459] 0 3459 5662 454 86016 0 -1000 udevd [ 44.576837] [ 3460] 0 3460 5662 454 86016 0 -1000 udevd [ 44.584991] [ 3477] 0 3477 17821 198 184320 0 0 sshd [ 44.593065] [ 3479] 0 3479 280 1 32768 0 0 syzkaller557408 [ 44.602093] [ 3480] 0 3480 4375 0 32768 0 0 syzkaller557408 [ 44.611127] [ 3481] 0 3481 4375 0 32768 0 0 syzkaller557408 [ 44.620241] [ 3482] 0 3482 4375 0 32768 0 0 syzkaller557408 [ 44.629268] [ 3483] 0 3483 4375 0 32768 0 0 syzkaller557408 [ 44.638291] [ 3484] 0 3484 4375 0 32768 0 0 syzkaller557408 [ 44.647299] [ 3485] 0 3485 4375 524 36864 0 0 syzkaller557408 [ 44.656316] [ 3486] 0 3486 4375 524 36864 0 0 syzkaller557408 [ 44.665337] [ 3487] 0 3487 4375 524 36864 0 0 syzkaller557408 [ 44.674355] Out of memory: Kill process 3485 (syzkaller557408) score 0 or sacrifice child [ 44.683615] Killed process 3485 (syzkaller557408) total-vm:17500kB, anon-rss:2096kB, file-rss:0kB, shmem-rss:0kB [ 44.697879] oom_reaper: reaped process 3485 (syzkaller557408), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 44.710172] init invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=0 [ 44.721202] init cpuset=/ mems_allowed=0 [ 44.725274] CPU: 1 PID: 1 Comm: init Not tainted 4.15.0-rc7-mm1+ #53 [ 44.731730] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.741048] Call Trace: [ 44.743607] dump_stack+0x194/0x257 [ 44.747205] ? arch_local_irq_restore+0x53/0x53 [ 44.751845] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 44.757014] dump_header+0x28c/0xe2b [ 44.760707] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 44.765874] ? pagefault_out_of_memory+0x145/0x145 [ 44.770786] ? print_irqtrace_events+0x270/0x270 [ 44.776043] ? avc_has_perm_noaudit+0x37e/0x520 [ 44.780682] ? check_noncircular+0x20/0x20 [ 44.784894] ? check_noncircular+0x20/0x20 [ 44.789102] ? print_irqtrace_events+0x270/0x270 [ 44.793827] ? reacquire_held_locks+0x1f9/0x3e0 [ 44.798461] ? reacquire_held_locks+0x1f9/0x3e0 [ 44.803099] ? check_noncircular+0x20/0x20 [ 44.807301] ? task_will_free_mem+0x252/0xaa0 [ 44.811760] ? check_noncircular+0x20/0x20 [ 44.815969] ? print_irqtrace_events+0x270/0x270 [ 44.820713] ? ___ratelimit+0x30d/0x630 [ 44.824668] ? lock_downgrade+0x980/0x980 [ 44.828800] ? lock_release+0xa40/0xa40 [ 44.832763] ? mark_held_locks+0xaf/0x100 [ 44.836898] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 44.841984] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 44.846986] ? trace_hardirqs_on+0xd/0x10 [ 44.851122] ? ___ratelimit+0x95/0x630 [ 44.854994] ? idr_get_free_cmn+0xfd0/0xfd0 [ 44.859301] ? check_noncircular+0x20/0x20 [ 44.863533] oom_kill_process+0x81b/0x9f0 [ 44.867666] ? oom_badness+0xd1/0x980 [ 44.871445] ? lock_release+0xa40/0xa40 [ 44.875411] ? oom_kill_memcg_member+0x20/0x20 [ 44.879984] ? oom_evaluate_task+0x480/0x480 [ 44.884999] ? out_of_memory+0xe1c/0x1790 [ 44.889133] ? lock_downgrade+0x980/0x980 [ 44.893269] ? lock_release+0xa40/0xa40 [ 44.897220] ? find_next_bit+0xcc/0x100 [ 44.901197] ? oom_evaluate_task+0x284/0x480 [ 44.905594] out_of_memory+0x9d5/0x1790 [ 44.909548] ? usleep_range+0x190/0x190 [ 44.913519] ? oom_killer_disable+0x310/0x310 [ 44.917995] ? mutex_trylock+0x23a/0x2d0 [ 44.922035] ? __alloc_pages_slowpath+0xf63/0x2cc0 [ 44.926947] ? __lock_is_held+0xb6/0x140 [ 44.930991] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 44.936446] __alloc_pages_slowpath+0x1ce4/0x2cc0 [ 44.941275] ? find_busiest_group+0x1c60/0x1c60 [ 44.945930] ? warn_alloc+0x2b0/0x2b0 [ 44.949701] ? lock_downgrade+0x980/0x980 [ 44.953828] ? radix_tree_lookup_slot+0x99/0xe0 [ 44.958498] ? find_get_entry+0x53c/0x9e0 [ 44.962626] ? print_irqtrace_events+0x270/0x270 [ 44.967902] ? find_held_lock+0x35/0x1d0 [ 44.972998] ? __lock_acquire+0x664/0x3e00 [ 44.977940] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 44.983817] ? __might_sleep+0x95/0x190 [ 44.987785] __alloc_pages_nodemask+0x9fb/0xd80 [ 44.992450] ? __alloc_pages_slowpath+0x2cc0/0x2cc0 [ 44.997443] ? add_to_page_cache_lru+0x510/0x510 [ 45.002190] ? check_noncircular+0x20/0x20 [ 45.006405] ? check_noncircular+0x20/0x20 [ 45.010623] ? find_held_lock+0x35/0x1d0 [ 45.014675] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 45.019450] alloc_pages_current+0xb6/0x1e0 [ 45.023761] __page_cache_alloc+0x334/0x500 [ 45.028065] ? rcu_read_lock_held+0xa9/0xc0 [ 45.032377] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 45.040096] filemap_fault+0xf34/0x1ca0 [ 45.044055] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 45.049244] ? __lock_page_or_retry+0x4f0/0x4f0 [ 45.053896] ? lock_downgrade+0x980/0x980 [ 45.058036] ? filemap_map_pages+0x942/0x15d0 [ 45.062514] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 45.067596] ? find_get_entries_tag+0xeb0/0xeb0 [ 45.072250] ? print_irqtrace_events+0x270/0x270 [ 45.076993] ? remove_wait_queue+0x1b4/0x350 [ 45.081387] ? check_noncircular+0x20/0x20 [ 45.085604] ? print_irqtrace_events+0x270/0x270 [ 45.090336] ? add_wait_queue+0x290/0x290 [ 45.094456] ? print_irqtrace_events+0x270/0x270 [ 45.099187] ? print_irqtrace_events+0x270/0x270 [ 45.103925] ? fput+0xd2/0x140 [ 45.107116] ? print_irqtrace_events+0x270/0x270 [ 45.111869] ? lock_acquire+0x1d5/0x580 [ 45.115823] ? lock_acquire+0x1d5/0x580 [ 45.119781] ? ext4_filemap_fault+0x7a/0xad [ 45.124090] ? __lock_acquire+0x664/0x3e00 [ 45.128314] ? lock_release+0xa40/0xa40 [ 45.132271] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 45.138135] ? rcu_note_context_switch+0x710/0x710 [ 45.143047] ? __might_sleep+0x95/0x190 [ 45.147018] ? down_read+0x96/0x150 [ 45.150621] ? ext4_filemap_fault+0x7a/0xad [ 45.154910] ? __down_interruptible+0x6b0/0x6b0 [ 45.159552] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 45.164743] ext4_filemap_fault+0x82/0xad [ 45.168880] __do_fault+0xeb/0x315 [ 45.172412] ? pte_offset_kernel+0xc7/0xc7 [ 45.176627] ? set_fd_set.part.0+0x70/0x70 [ 45.180848] ? check_noncircular+0x20/0x20 [ 45.185082] ? check_noncircular+0x20/0x20 [ 45.189311] __handle_mm_fault+0x1d8f/0x3ce0 [ 45.193717] ? __pmd_alloc+0x4e0/0x4e0 [ 45.197584] ? find_held_lock+0x35/0x1d0 [ 45.201640] ? find_held_lock+0x35/0x1d0 [ 45.205697] ? handle_mm_fault+0x2a0/0x930 [ 45.209918] ? lock_downgrade+0x980/0x980 [ 45.214095] handle_mm_fault+0x38f/0x930 [ 45.218137] ? down_read_trylock+0xdb/0x170 [ 45.222445] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 45.227010] ? vmacache_find+0x5f/0x280 [ 45.230975] ? find_vma+0x30/0x150 [ 45.234506] __do_page_fault+0x5c9/0xc90 [ 45.238567] ? mm_fault_error+0x2c0/0x2c0 [ 45.242717] do_page_fault+0xee/0x720 [ 45.246513] ? __do_page_fault+0xc90/0xc90 [ 45.250745] ? SyS_select+0x1ae/0x230 [ 45.254538] ? core_sys_select+0x960/0x960 [ 45.258758] ? entry_SYSCALL_64_fastpath+0x55/0xa0 [ 45.263668] ? page_fault+0x36/0x60 [ 45.267266] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 45.272108] ? page_fault+0x36/0x60 [ 45.275714] page_fault+0x4c/0x60 [ 45.279137] RIP: 0033:0x7faa10bfddd3 [ 45.282819] RSP: 002b:00007fff940fb1e8 EFLAGS: 00010246 [ 45.288163] RAX: 0000000000000000 RBX: 00007fff940fb390 RCX: 00007faa10bfddd3 [ 45.295416] RDX: 0000000000000000 RSI: 00007fff940fb540 RDI: 000000000000000b [ 45.302665] RBP: 00007fff940fb540 R08: 00007fff940fb5c0 R09: 0000000000000001 [ 45.309916] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 45.317168] R13: 00007fff940fb920 R14: 0000000000000000 R15: 0000000000000000 [ 45.324777] Mem-Info: [ 45.327208] active_anon:2982 inactive_anon:61 isolated_anon:0 [ 45.327208] active_file:16 inactive_file:8 isolated_file:0 [ 45.327208] unevictable:0 dirty:0 writeback:0 unstable:0 [ 45.327208] slab_reclaimable:7262 slab_unreclaimable:83366 [ 45.327208] mapped:2 shmem:68 pagetables:303 bounce:0 [ 45.327208] free:23212 free_pcp:43 free_cma:0 [ 45.359187] Node 0 active_anon:11928kB inactive_anon:244kB active_file:64kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:272kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 4096kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 45.386110] 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 [ 45.412285] lowmem_reserve[]: 0 2870 6381 6381 [ 45.416905] Node 0 DMA32 free:44052kB min:30332kB low:37912kB high:45492kB active_anon:28kB inactive_anon:4kB active_file:0kB inactive_file:12kB unevictable:0kB writepending:0kB present:3129332kB managed:2942332kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 45.444264] lowmem_reserve[]: 0 0 3510 3510 [ 45.448628] Node 0 Normal free:32888kB min:37084kB low:46352kB high:55620kB active_anon:11900kB inactive_anon:240kB active_file:68kB inactive_file:20kB unevictable:0kB writepending:0kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3008kB pagetables:1212kB bounce:0kB free_pcp:172kB local_pcp:116kB free_cma:0kB [ 45.477473] lowmem_reserve[]: 0 0 0 0 [ 45.481309] 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 [ 45.494939] Node 0 DMA32: 5*4kB (UME) 4*8kB (ME) 4*16kB (ME) 1*32kB (E) 6*64kB (UME) 6*128kB (UME) 5*256kB (ME) 5*512kB (UME) 4*1024kB (UME) 3*2048kB (ME) 7*4096kB (M) = 44052kB [ 45.510981] Node 0 Normal: 408*4kB (M) 330*8kB (UME) 239*16kB (UME) 132*32kB (UME) 58*64kB (M) 28*128kB (M) 24*256kB (M) 6*512kB (UM) 0*1024kB 2*2048kB (M) 0*4096kB = 32928kB [ 45.526798] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 45.535374] 92 total pagecache pages [ 45.539105] 0 pages in swap cache [ 45.542554] Swap cache stats: add 0, delete 0, find 0/0 [ 45.547912] Free swap = 0kB [ 45.550919] Total swap = 0kB [ 45.553938] 1965979 pages RAM [ 45.557049] 0 pages HighMem/MovableOnly [ 45.561029] 327762 pages reserved [ 45.564485] Unreclaimable slab info: [ 45.568203] Name Used Total [ 45.573751] hashtab_node 118KB 119KB [ 45.579125] ebitmap_node 382KB 385KB [ 45.584501] avtab_node 1012KB 1013KB [ 45.589876] TIPC 1KB 7KB [ 45.595251] SCTPv6 2KB 4KB [ 45.600630] DCCPv6 2KB 7KB [ 45.606029] DCCP 2KB 6KB [ 45.611399] fib6_nodes 0KB 4KB [ 45.616769] ip6_dst_cache 7KB 7KB [ 45.622143] RAWv6 9KB 19KB [ 45.627517] UDPv6 12KB 14KB [ 45.632893] TCPv6 2KB 5KB [ 45.638276] sd_ext_cdb 0KB 3KB [ 45.643651] scsi_sense_cache 116KB 120KB [ 45.649038] virtio_scsi_cmd 16KB 16KB [ 45.654433] sgpool-128 8KB 8KB [ 45.659804] sgpool-64 4KB 6KB [ 45.665161] sgpool-32 236KB 244KB [ 45.670558] sgpool-16 57KB 60KB [ 45.676769] sgpool-8 193KB 195KB [ 45.682931] cfq_io_cq 15KB 19KB [ 45.688904] cfq_queue 24KB 30KB [ 45.694900] mqueue_inode_cache 1KB 7KB [ 45.700919] nfs_commit_data 3KB 7KB [ 45.706882] nfs_write_data 34KB 37KB [ 45.712894] jbd2_inode 1KB 3KB [ 45.718875] ext4_system_zone 0KB 3KB [ 45.724870] bio-1 1KB 3KB [ 45.730893] rpc_buffers 17KB 19KB [ 45.736885] rpc_tasks 2KB 3KB [ 45.742875] UNIX 773KB 773KB [ 45.748875] tcp_bind_bucket 0KB 4KB [ 45.754872] ip_fib_trie 0KB 3KB [ 45.760891] ip_fib_alias 0KB 3KB [ 45.766901] ip_dst_cache 3KB 8KB [ 45.772902] RAW 5KB 7KB [ 45.778888] UDP 29KB 31KB [ 45.784861] TCP 7KB 15KB [ 45.790850] hugetlbfs_inode_cache 1KB 7KB [ 45.797905] eventpoll_pwq 10KB 11KB [ 45.803902] eventpoll_epi 20KB 23KB [ 45.810068] inotify_inode_mark 3KB 11KB [ 45.816046] request_queue 31KB 45KB [ 45.821409] blkdev_ioc 20KB 27KB [ 45.826755] bio-0 377KB 382KB [ 45.832103] biovec-(1<<(21-12)) 577KB 577KB [ 45.837625] biovec-64 308KB 315KB [ 45.842971] biovec-16 38KB 41KB [ 45.848324] bio_integrity_payload 0KB 4KB [ 45.854028] khugepaged_mm_slot 0KB 3KB [ 45.859463] uid_cache 0KB 3KB [ 45.864810] dmaengine-unmap-2 0KB 3KB [ 45.870161] audit_buffer 0KB 3KB [ 45.875506] skbuff_fclone_cache 130KB 131KB [ 45.881024] skbuff_head_cache 1713KB 1713KB [ 45.886374] configfs_dir_cache 0KB 4KB [ 45.891805] file_lock_cache 157KB 158KB [ 45.897149] file_lock_ctx 1KB 3KB [ 45.902496] fsnotify_mark_connector 2KB 7KB [ 45.908363] shmem_inode_cache 1040KB 1042KB [ 45.913710] task_delay_info 296KB 367KB [ 45.919201] sigqueue 335KB 338KB [ 45.924566] kernfs_node_cache 2160KB 2161KB [ 45.929910] mnt_cache 15KB 20KB [ 45.935664] filp 8453KB 8651KB [ 45.941027] names_cache 111354KB 111384KB [ 45.946381] avc_node 37KB 39KB [ 45.951739] selinux_file_security 423KB 453KB [ 45.957436] selinux_inode_security 1929KB 1936KB [ 45.963219] key_jar 3KB 7KB [ 45.968567] nsproxy 0KB 3KB [ 45.973913] vm_area_struct 17732KB 17742KB [ 45.979258] mm_struct 4223KB 4234KB [ 45.984605] fs_cache 395KB 424KB [ 45.989950] files_cache 1484KB 1488KB [ 45.995295] signal_cache 2369KB 2371KB [ 46.000651] sighand_cache 210KB 270KB [ 46.005996] task_struct 10112KB 10112KB [ 46.011344] cred_jar 2245KB 2252KB [ 46.016699] anon_vma_chain 7339KB 7347KB [ 46.022042] anon_vma 122KB 296KB [ 46.027413] pid 206KB 260KB [ 46.032773] Acpi-Operand 106KB 170KB [ 46.038123] Acpi-Namespace 19KB 23KB [ 46.043471] numa_policy 0KB 3KB [ 46.048814] debug_objects_cache 496KB 497KB [ 46.054336] trace_event_file 145KB 147KB [ 46.059682] ftrace_event_field 257KB 259KB [ 46.065525] pool_workqueue 22KB 24KB [ 46.070870] page->ptl 2858KB 2866KB [ 46.076228] kmalloc-262144 1032KB 1032KB [ 46.081572] kmalloc-131072 650KB 650KB [ 46.086916] kmalloc-65536 264KB 264KB [ 46.092262] kmalloc-32768 627KB 627KB [ 46.097607] kmalloc-16384 148KB 148KB [ 46.102959] kmalloc-8192 503KB 503KB [ 46.108304] kmalloc-4096 8279KB 8308KB [ 46.113650] kmalloc-2048 5083KB 5087KB [ 46.118994] kmalloc-1024 2850KB 2850KB [ 46.124343] kmalloc-512 2631KB 2816KB [ 46.129706] kmalloc-256 2016KB 2362KB [ 46.135061] kmalloc-128 390KB 527KB [ 46.140416] kmalloc-96 2056KB 2056KB [ 46.145761] kmalloc-64 2465KB 2468KB [ 46.151106] kmalloc-32 2388KB 2397KB [ 46.156455] kmalloc-192 901KB 904KB [ 46.161801] kmem_cache 100KB 101KB [ 46.167145] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 46.175739] [ 1781] 0 1781 5366 167 86016 0 -1000 udevd [ 46.183870] [ 3325] 0 3325 14265 186 122880 0 0 rsyslogd [ 46.192275] [ 3381] 0 3381 4725 51 86016 0 0 cron [ 46.200329] [ 3399] 0 3399 3736 45 65536 0 0 mcstransd [ 46.209348] [ 3427] 0 3427 12490 152 143360 0 -1000 sshd [ 46.217408] [ 3451] 0 3451 3694 40 73728 0 0 getty [ 46.225551] [ 3452] 0 3452 3694 41 77824 0 0 getty [ 46.233697] [ 3453] 0 3453 3694 41 77824 0 0 getty [ 46.241845] [ 3454] 0 3454 3694 40 73728 0 0 getty [ 46.249986] [ 3455] 0 3455 3694 42 73728 0 0 getty [ 46.258136] [ 3456] 0 3456 3694 40 73728 0 0 getty [ 46.266297] [ 3457] 0 3457 3649 40 69632 0 0 getty [ 46.274436] [ 3459] 0 3459 5662 454 86016 0 -1000 udevd [ 46.282581] [ 3460] 0 3460 5662 454 86016 0 -1000 udevd [ 46.290727] [ 3477] 0 3477 17821 198 184320 0 0 sshd [ 46.298784] [ 3479] 0 3479 280 1 32768 0 0 syzkaller557408 [ 46.307794] [ 3480] 0 3480 4375 0 32768 0 0 syzkaller557408 [ 46.316804] [ 3481] 0 3481 4375 0 32768 0 0 syzkaller557408 [ 46.325812] [ 3482] 0 3482 4375 0 32768 0 0 syzkaller557408 [ 46.334824] [ 3483] 0 3483 4375 0 32768 0 0 syzkaller557408 [ 46.343841] [ 3484] 0 3484 4375 0 32768 0 0 syzkaller557408 [ 46.352870] [ 3485] 0 3485 4375 0 32768 0 0 syzkaller557408 [ 46.361884] [ 3486] 0 3486 4375 524 36864 0 0 syzkaller557408 [ 46.370893] [ 3487] 0 3487 4375 524 36864 0 0 syzkaller557408 [ 46.379905] Out of memory: Kill process 3486 (syzkaller557408) score 0 or sacrifice child [ 46.388286] Killed process 3486 (syzkaller557408) total-vm:17500kB, anon-rss:2096kB, file-rss:0kB, shmem-rss:0kB [ 46.400634] oom_reaper: reaped process 3486 (syzkaller557408), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 46.751858] rsyslogd invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=0 [ 46.763668] rsyslogd cpuset=/ mems_allowed=0 [ 46.768137] CPU: 1 PID: 3329 Comm: rsyslogd Not tainted 4.15.0-rc7-mm1+ #53 [ 46.775214] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.784545] Call Trace: [ 46.787107] dump_stack+0x194/0x257 [ 46.790705] ? arch_local_irq_restore+0x53/0x53 [ 46.795351] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 46.800516] dump_header+0x28c/0xe2b [ 46.804205] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 46.809366] ? pagefault_out_of_memory+0x145/0x145 [ 46.814277] ? print_irqtrace_events+0x270/0x270 [ 46.819096] ? avc_has_perm_noaudit+0x37e/0x520 [ 46.823736] ? check_noncircular+0x20/0x20 [ 46.827944] ? check_noncircular+0x20/0x20 [ 46.832150] ? print_irqtrace_events+0x270/0x270 [ 46.836879] ? reacquire_held_locks+0x1f9/0x3e0 [ 46.841528] ? reacquire_held_locks+0x1f9/0x3e0 [ 46.846171] ? check_noncircular+0x20/0x20 [ 46.850382] ? task_will_free_mem+0x252/0xaa0 [ 46.854843] ? check_noncircular+0x20/0x20 [ 46.859051] ? print_irqtrace_events+0x270/0x270 [ 46.863790] ? ___ratelimit+0x30d/0x630 [ 46.867733] ? lock_downgrade+0x980/0x980 [ 46.871853] ? lock_release+0xa40/0xa40 [ 46.875800] ? mark_held_locks+0xaf/0x100 [ 46.879917] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 46.884986] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 46.889969] ? trace_hardirqs_on+0xd/0x10 [ 46.894093] ? ___ratelimit+0x95/0x630 [ 46.897951] ? idr_get_free_cmn+0xfd0/0xfd0 [ 46.902241] ? check_noncircular+0x20/0x20 [ 46.906465] oom_kill_process+0x81b/0x9f0 [ 46.910596] ? oom_badness+0xd1/0x980 [ 46.914374] ? lock_release+0xa40/0xa40 [ 46.918322] ? oom_kill_memcg_member+0x20/0x20 [ 46.922877] ? oom_evaluate_task+0x480/0x480 [ 46.927263] ? out_of_memory+0xe1c/0x1790 [ 46.931379] ? lock_downgrade+0x980/0x980 [ 46.935498] ? lock_release+0xa40/0xa40 [ 46.939438] ? find_next_bit+0xcc/0x100 [ 46.943399] ? oom_evaluate_task+0x284/0x480 [ 46.947786] out_of_memory+0x9d5/0x1790 [ 46.951732] ? usleep_range+0x190/0x190 [ 46.955680] ? oom_killer_disable+0x310/0x310 [ 46.960150] ? mutex_trylock+0x23a/0x2d0 [ 46.964177] ? __alloc_pages_slowpath+0xf63/0x2cc0 [ 46.969075] ? __lock_is_held+0xb6/0x140 [ 46.973104] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 46.978532] __alloc_pages_slowpath+0x1ce4/0x2cc0 [ 46.983347] ? trace_hardirqs_on+0xd/0x10 [ 46.987477] ? warn_alloc+0x2b0/0x2b0 [ 46.991244] ? lock_downgrade+0x980/0x980 [ 46.995369] ? radix_tree_lookup_slot+0x99/0xe0 [ 47.000031] ? find_get_entry+0x53c/0x9e0 [ 47.004166] ? __lock_acquire+0x664/0x3e00 [ 47.008397] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 47.014257] ? __might_sleep+0x95/0x190 [ 47.018206] __alloc_pages_nodemask+0x9fb/0xd80 [ 47.022851] ? __alloc_pages_slowpath+0x2cc0/0x2cc0 [ 47.027842] ? add_to_page_cache_lru+0x510/0x510 [ 47.032587] ? check_noncircular+0x20/0x20 [ 47.037620] ? check_noncircular+0x20/0x20 [ 47.041824] ? __schedule+0x8f3/0x2060 [ 47.045678] ? account_entity_enqueue+0x3c8/0x6e0 [ 47.050495] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 47.055235] alloc_pages_current+0xb6/0x1e0 [ 47.059529] __page_cache_alloc+0x334/0x500 [ 47.063819] ? rcu_read_lock_held+0xa9/0xc0 [ 47.068111] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 47.075447] filemap_fault+0xf34/0x1ca0 [ 47.079387] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 47.084562] ? __lock_page_or_retry+0x4f0/0x4f0 [ 47.089204] ? filemap_map_pages+0x942/0x15d0 [ 47.093679] ? find_get_entries_tag+0xeb0/0xeb0 [ 47.098317] ? do_raw_spin_trylock+0x190/0x190 [ 47.102863] ? do_raw_spin_trylock+0x190/0x190 [ 47.107420] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 47.112491] ? check_noncircular+0x20/0x20 [ 47.116691] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 47.121676] ? trace_hardirqs_on+0xd/0x10 [ 47.125796] ? print_irqtrace_events+0x270/0x270 [ 47.130518] ? print_irqtrace_events+0x270/0x270 [ 47.135255] ? lock_acquire+0x1d5/0x580 [ 47.139194] ? lock_acquire+0x1d5/0x580 [ 47.143135] ? ext4_filemap_fault+0x7a/0xad [ 47.147443] ? lock_release+0xa40/0xa40 [ 47.151389] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 47.157244] ? rcu_note_context_switch+0x710/0x710 [ 47.162144] ? __might_sleep+0x95/0x190 [ 47.166088] ? down_read+0x96/0x150 [ 47.169679] ? ext4_filemap_fault+0x7a/0xad [ 47.173969] ? __down_interruptible+0x6b0/0x6b0 [ 47.178613] ext4_filemap_fault+0x82/0xad [ 47.182727] __do_fault+0xeb/0x315 [ 47.186237] ? pte_offset_kernel+0xc7/0xc7 [ 47.190441] ? do_raw_spin_trylock+0x190/0x190 [ 47.194996] ? check_noncircular+0x20/0x20 [ 47.199211] __handle_mm_fault+0x1d8f/0x3ce0 [ 47.203591] ? __pmd_alloc+0x4e0/0x4e0 [ 47.207450] ? find_held_lock+0x35/0x1d0 [ 47.211483] ? handle_mm_fault+0x2a0/0x930 [ 47.215693] ? lock_downgrade+0x980/0x980 [ 47.219833] handle_mm_fault+0x38f/0x930 [ 47.223860] ? down_read_trylock+0xdb/0x170 [ 47.228149] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 47.232702] ? vmacache_find+0x5f/0x280 [ 47.236647] ? find_vma+0x30/0x150 [ 47.240157] __do_page_fault+0x5c9/0xc90 [ 47.244198] ? mm_fault_error+0x2c0/0x2c0 [ 47.248317] ? avc_policy_seqno+0x9/0x20 [ 47.252366] do_page_fault+0xee/0x720 [ 47.256140] ? __do_page_fault+0xc90/0xc90 [ 47.260352] ? SyS_futex+0x269/0x390 [ 47.264041] ? do_futex+0x22a0/0x22a0 [ 47.267811] ? SyS_read+0x184/0x220 [ 47.271413] ? retint_user+0x18/0x18 [ 47.275094] ? page_fault+0x36/0x60 [ 47.278689] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 47.283502] ? page_fault+0x36/0x60 [ 47.287097] page_fault+0x4c/0x60 [ 47.290518] RIP: 0033:0x7f1458bb3bb0 [ 47.294199] RSP: 002b:00007f1457583d78 EFLAGS: 00010206 [ 47.299531] RAX: 0000000000000009 RBX: 00007f1458bb650c RCX: 656c6c616b7a7973 [ 47.306767] RDX: 00000000013b6fad RSI: 00000000013831d9 RDI: 00007f1458bb650c [ 47.314008] RBP: 0000000000000006 R08: 00000000013831d0 R09: 00007f1459962250 [ 47.321261] R10: 6320383034373535 R11: 00007f1459994a50 R12: 0000000000000000 [ 47.328498] R13: 0000000000000009 R14: 000000000000005a R15: 00007f1458db8668 [ 47.335824] Mem-Info: [ 47.338263] active_anon:2465 inactive_anon:61 isolated_anon:0 [ 47.338263] active_file:12 inactive_file:12 isolated_file:0 [ 47.338263] unevictable:0 dirty:0 writeback:0 unstable:0 [ 47.338263] slab_reclaimable:7262 slab_unreclaimable:83366 [ 47.338263] mapped:2 shmem:68 pagetables:302 bounce:0 [ 47.338263] free:23734 free_pcp:49 free_cma:0 [ 47.370314] Node 0 active_anon:9860kB inactive_anon:244kB active_file:48kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:272kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 2048kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 47.397059] 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 [ 47.423202] lowmem_reserve[]: 0 2870 6381 6381 [ 47.427801] Node 0 DMA32 free:44052kB min:30332kB low:37912kB high:45492kB active_anon:28kB inactive_anon:4kB active_file:8kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2942332kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 47.455065] lowmem_reserve[]: 0 0 3510 3510 [ 47.459402] Node 0 Normal free:34976kB min:37084kB low:46352kB high:55620kB active_anon:9832kB inactive_anon:240kB active_file:44kB inactive_file:44kB unevictable:0kB writepending:0kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3008kB pagetables:1208kB bounce:0kB free_pcp:200kB local_pcp:120kB free_cma:0kB [ 47.488145] lowmem_reserve[]: 0 0 0 0 [ 47.491962] 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 [ 47.505637] Node 0 DMA32: 5*4kB (UME) 4*8kB (ME) 4*16kB (ME) 1*32kB (E) 6*64kB (UME) 6*128kB (UME) 5*256kB (ME) 5*512kB (UME) 4*1024kB (UME) 3*2048kB (ME) 7*4096kB (M) = 44052kB [ 47.521725] Node 0 Normal: 408*4kB (M) 331*8kB (UME) 239*16kB (UME) 132*32kB (UME) 58*64kB (M) 28*128kB (M) 24*256kB (M) 6*512kB (UM) 0*1024kB 1*2048kB (M) 1*4096kB (M) = 34984kB [ 47.537902] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 47.546489] 92 total pagecache pages [ 47.550217] 0 pages in swap cache [ 47.553678] Swap cache stats: add 0, delete 0, find 0/0 [ 47.559046] Free swap = 0kB [ 47.562069] Total swap = 0kB [ 47.565092] 1965979 pages RAM [ 47.568211] 0 pages HighMem/MovableOnly [ 47.572187] 327762 pages reserved [ 47.575643] Unreclaimable slab info: [ 47.579361] Name Used Total [ 47.584912] hashtab_node 118KB 119KB [ 47.590285] ebitmap_node 382KB 385KB [ 47.595656] avtab_node 1012KB 1013KB [ 47.601036] TIPC 1KB 7KB [ 47.606415] SCTPv6 2KB 4KB [ 47.611793] DCCPv6 2KB 7KB [ 47.617177] DCCP 2KB 6KB [ 47.622565] fib6_nodes 0KB 4KB [ 47.627937] ip6_dst_cache 6KB 7KB [ 47.633309] RAWv6 9KB 19KB [ 47.638681] UDPv6 12KB 14KB [ 47.644058] TCPv6 2KB 5KB [ 47.649447] sd_ext_cdb 0KB 3KB [ 47.654818] scsi_sense_cache 114KB 120KB [ 47.660189] virtio_scsi_cmd 16KB 16KB [ 47.665566] sgpool-128 8KB 8KB [ 47.670938] sgpool-64 4KB 6KB [ 47.676311] sgpool-32 236KB 244KB [ 47.681714] sgpool-16 57KB 60KB [ 47.687171] sgpool-8 193KB 195KB [ 47.692551] cfq_io_cq 15KB 19KB [ 47.697904] cfq_queue 24KB 30KB [ 47.703252] mqueue_inode_cache 1KB 7KB [ 47.708685] nfs_commit_data 3KB 7KB [ 47.714063] nfs_write_data 34KB 37KB [ 47.719419] jbd2_inode 1KB 3KB [ 47.724764] ext4_system_zone 0KB 3KB [ 47.730115] bio-1 1KB 3KB [ 47.735463] rpc_buffers 17KB 19KB [ 47.740806] rpc_tasks 2KB 3KB [ 47.746153] UNIX 773KB 773KB [ 47.751498] tcp_bind_bucket 0KB 4KB [ 47.756845] ip_fib_trie 0KB 3KB [ 47.762190] ip_fib_alias 0KB 3KB [ 47.767551] ip_dst_cache 3KB 8KB [ 47.772896] RAW 5KB 7KB [ 47.778247] UDP 29KB 31KB [ 47.783600] TCP 7KB 15KB [ 47.788946] hugetlbfs_inode_cache 1KB 7KB [ 47.794661] eventpoll_pwq 10KB 11KB [ 47.800033] eventpoll_epi 20KB 23KB [ 47.805402] inotify_inode_mark 3KB 11KB [ 47.810861] request_queue 31KB 39KB [ 47.816229] blkdev_ioc 20KB 27KB [ 47.821594] bio-0 377KB 382KB [ 47.826951] biovec-(1<<(21-12)) 577KB 577KB [ 47.832491] biovec-64 308KB 315KB [ 47.837861] biovec-16 38KB 41KB [ 47.843235] bio_integrity_payload 0KB 4KB [ 47.848959] khugepaged_mm_slot 0KB 3KB [ 47.854426] uid_cache 0KB 3KB [ 47.859795] dmaengine-unmap-2 0KB 3KB [ 47.865166] audit_buffer 0KB 3KB [ 47.870546] skbuff_fclone_cache 130KB 131KB [ 47.876133] skbuff_head_cache 1713KB 1713KB [ 47.881498] configfs_dir_cache 0KB 4KB [ 47.886959] file_lock_cache 157KB 158KB [ 47.892337] file_lock_ctx 1KB 3KB [ 47.897711] fsnotify_mark_connector 2KB 7KB [ 47.903609] shmem_inode_cache 1040KB 1042KB [ 47.908988] task_delay_info 296KB 367KB [ 47.914353] sigqueue 335KB 338KB [ 47.919722] kernfs_node_cache 2160KB 2161KB [ 47.925087] mnt_cache 15KB 20KB [ 47.930455] filp 8453KB 8651KB [ 47.935812] names_cache 111354KB 111384KB [ 47.941209] avc_node 37KB 39KB [ 47.946585] selinux_file_security 420KB 453KB [ 47.952308] selinux_inode_security 1929KB 1936KB [ 47.958117] key_jar 3KB 7KB [ 47.963495] nsproxy 0KB 3KB [ 47.968869] vm_area_struct 17732KB 17742KB [ 47.974245] mm_struct 4223KB 4234KB [ 47.979620] fs_cache 395KB 424KB [ 47.984991] files_cache 1484KB 1488KB [ 47.990364] signal_cache 2369KB 2371KB [ 47.995738] sighand_cache 210KB 270KB [ 48.001107] task_struct 10112KB 10112KB [ 48.006507] cred_jar 2245KB 2252KB [ 48.012813] anon_vma_chain 7339KB 7347KB [ 48.018903] anon_vma 121KB 292KB [ 48.024933] pid 206KB 260KB [ 48.030931] Acpi-Operand 106KB 170KB [ 48.036916] Acpi-Namespace 19KB 23KB [ 48.043127] numa_policy 0KB 3KB [ 48.048517] debug_objects_cache 496KB 497KB [ 48.054067] trace_event_file 145KB 147KB [ 48.059439] ftrace_event_field 257KB 259KB [ 48.064902] pool_workqueue 22KB 24KB [ 48.070326] page->ptl 2858KB 2866KB [ 48.076670] kmalloc-262144 1032KB 1032KB [ 48.082817] kmalloc-131072 650KB 650KB [ 48.088873] kmalloc-65536 264KB 264KB [ 48.094898] kmalloc-32768 627KB 627KB [ 48.100904] kmalloc-16384 148KB 148KB [ 48.106933] kmalloc-8192 503KB 503KB [ 48.112936] kmalloc-4096 8279KB 8308KB [ 48.118935] kmalloc-2048 5083KB 5087KB [ 48.125170] kmalloc-1024 2850KB 2850KB [ 48.130562] kmalloc-512 2625KB 2816KB [ 48.135949] kmalloc-256 2015KB 2362KB [ 48.141326] kmalloc-128 390KB 527KB [ 48.146688] kmalloc-96 2055KB 2056KB [ 48.152058] kmalloc-64 2465KB 2468KB [ 48.157434] kmalloc-32 2386KB 2397KB [ 48.162808] kmalloc-192 900KB 904KB [ 48.168180] kmem_cache 100KB 101KB [ 48.173551] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 48.182157] [ 1781] 0 1781 5366 167 86016 0 -1000 udevd [ 48.190316] [ 3325] 0 3325 14265 186 122880 0 0 rsyslogd [ 48.198732] [ 3381] 0 3381 4725 51 86016 0 0 cron [ 48.206839] [ 3399] 0 3399 3736 45 65536 0 0 mcstransd [ 48.215348] [ 3427] 0 3427 12490 152 143360 0 -1000 sshd [ 48.223415] [ 3451] 0 3451 3694 40 73728 0 0 getty [ 48.231559] [ 3452] 0 3452 3694 41 77824 0 0 getty [ 48.239713] [ 3453] 0 3453 3694 41 77824 0 0 getty [ 48.247857] [ 3454] 0 3454 3694 40 73728 0 0 getty [ 48.256042] [ 3455] 0 3455 3694 42 73728 0 0 getty [ 48.264200] [ 3456] 0 3456 3694 40 73728 0 0 getty [ 48.272394] [ 3457] 0 3457 3649 40 69632 0 0 getty [ 48.280556] [ 3459] 0 3459 5662 454 86016 0 -1000 udevd [ 48.288720] [ 3460] 0 3460 5662 454 86016 0 -1000 udevd [ 48.296886] [ 3477] 0 3477 17821 198 184320 0 0 sshd [ 48.304970] [ 3479] 0 3479 280 1 32768 0 0 syzkaller557408 [ 48.314007] [ 3480] 0 3480 4375 0 32768 0 0 syzkaller557408 [ 48.323060] [ 3481] 0 3481 4375 0 32768 0 0 syzkaller557408 [ 48.332088] [ 3482] 0 3482 4375 0 32768 0 0 syzkaller557408 [ 48.341147] [ 3483] 0 3483 4375 0 32768 0 0 syzkaller557408 [ 48.350179] [ 3484] 0 3484 4375 0 32768 0 0 syzkaller557408 [ 48.359213] [ 3485] 0 3485 4375 0 32768 0 0 syzkaller557408 [ 48.368242] [ 3486] 0 3486 4375 0 32768 0 0 syzkaller557408 [ 48.377276] [ 3487] 0 3487 4375 524 36864 0 0 syzkaller557408 [ 48.386300] Out of memory: Kill process 3487 (syzkaller557408) score 0 or sacrifice child [ 48.395416] Killed process 3487 (syzkaller557408) total-vm:17500kB, anon-rss:2096kB, file-rss:0kB, shmem-rss:0kB [ 48.407750] oom_reaper: reaped process 3487 (syzkaller557408), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 48.425052] rs:main Q:Reg invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=0 [ 48.454491] rs:main Q:Reg cpuset=/ mems_allowed=0 [ 48.459437] CPU: 1 PID: 3327 Comm: rs:main Q:Reg Not tainted 4.15.0-rc7-mm1+ #53 [ 48.461535] syzkaller557408: page allocation failure: order:0, mode:0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null) [ 48.461570] syzkaller557408 cpuset=/ mems_allowed=0 [ 48.482914] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.492240] Call Trace: [ 48.494808] dump_stack+0x194/0x257 [ 48.498416] ? arch_local_irq_restore+0x53/0x53 [ 48.503064] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 48.508244] dump_header+0x28c/0xe2b [ 48.511942] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 48.517115] ? pagefault_out_of_memory+0x145/0x145 [ 48.522022] ? __lock_acquire+0x664/0x3e00 [ 48.526238] ? print_irqtrace_events+0x270/0x270 [ 48.530987] ? check_noncircular+0x20/0x20 [ 48.535200] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 48.540366] ? check_noncircular+0x20/0x20 [ 48.544579] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 48.549321] ? retint_kernel+0x10/0x10 [ 48.553184] ? check_noncircular+0x20/0x20 [ 48.557394] ? task_will_free_mem+0x252/0xaa0 [ 48.561873] ? print_irqtrace_events+0x270/0x270 [ 48.566614] ? ___ratelimit+0x30d/0x630 [ 48.570566] ? lock_downgrade+0x980/0x980 [ 48.574694] ? lock_release+0xa40/0xa40 [ 48.578649] ? mark_held_locks+0xaf/0x100 [ 48.582775] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 48.587857] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 48.592850] ? trace_hardirqs_on+0xd/0x10 [ 48.596977] ? ___ratelimit+0x95/0x630 [ 48.600843] ? idr_get_free_cmn+0xfd0/0xfd0 [ 48.605143] ? check_noncircular+0x20/0x20 [ 48.609366] oom_kill_process+0x81b/0x9f0 [ 48.613489] ? lock_release+0xa40/0xa40 [ 48.617444] ? oom_kill_memcg_member+0x20/0x20 [ 48.622011] ? oom_evaluate_task+0x480/0x480 [ 48.626407] ? out_of_memory+0xe1c/0x1790 [ 48.630532] ? lock_downgrade+0x980/0x980 [ 48.634660] ? lock_release+0xa40/0xa40 [ 48.638606] ? find_next_bit+0xcc/0x100 [ 48.642571] ? oom_evaluate_task+0x284/0x480 [ 48.646965] out_of_memory+0x9d5/0x1790 [ 48.650911] ? usleep_range+0x190/0x190 [ 48.654873] ? oom_killer_disable+0x310/0x310 [ 48.659361] ? mutex_trylock+0x23a/0x2d0 [ 48.663400] ? __alloc_pages_slowpath+0xf63/0x2cc0 [ 48.668303] ? __lock_is_held+0xb6/0x140 [ 48.672341] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 48.677785] __alloc_pages_slowpath+0x1ce4/0x2cc0 [ 48.682614] ? trace_hardirqs_on+0xd/0x10 [ 48.686763] ? warn_alloc+0x2b0/0x2b0 [ 48.690539] ? lock_downgrade+0x980/0x980 [ 48.694678] ? radix_tree_lookup_slot+0x99/0xe0 [ 48.699344] ? find_get_entry+0x53c/0x9e0 [ 48.703499] ? __lock_acquire+0x664/0x3e00 [ 48.707753] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 48.714498] ? __might_sleep+0x95/0x190 [ 48.718456] __alloc_pages_nodemask+0x9fb/0xd80 [ 48.723109] ? __alloc_pages_slowpath+0x2cc0/0x2cc0 [ 48.728100] ? add_to_page_cache_lru+0x510/0x510 [ 48.732840] ? check_noncircular+0x20/0x20 [ 48.737049] ? check_noncircular+0x20/0x20 [ 48.741271] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 48.746033] alloc_pages_current+0xb6/0x1e0 [ 48.750336] __page_cache_alloc+0x334/0x500 [ 48.754633] ? rcu_read_lock_held+0xa9/0xc0 [ 48.758932] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 48.766286] filemap_fault+0xf34/0x1ca0 [ 48.770238] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 48.775418] ? __lock_page_or_retry+0x4f0/0x4f0 [ 48.780071] ? filemap_map_pages+0x942/0x15d0 [ 48.784559] ? find_get_entries_tag+0xeb0/0xeb0 [ 48.789206] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 48.794372] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 48.799538] ? check_noncircular+0x20/0x20 [ 48.803755] ? print_irqtrace_events+0x270/0x270 [ 48.808486] ? print_irqtrace_events+0x270/0x270 [ 48.813218] ? print_irqtrace_events+0x270/0x270 [ 48.817976] ? lock_acquire+0x1d5/0x580 [ 48.821923] ? lock_acquire+0x1d5/0x580 [ 48.825870] ? ext4_filemap_fault+0x7a/0xad [ 48.830169] ? __lock_acquire+0x664/0x3e00 [ 48.834386] ? lock_release+0xa40/0xa40 [ 48.838333] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 48.844197] ? rcu_note_context_switch+0x710/0x710 [ 48.849111] ? __might_sleep+0x95/0x190 [ 48.853067] ? down_read+0x96/0x150 [ 48.856666] ? ext4_filemap_fault+0x7a/0xad [ 48.860963] ? __down_interruptible+0x6b0/0x6b0 [ 48.865623] ext4_filemap_fault+0x82/0xad [ 48.869750] __do_fault+0xeb/0x315 [ 48.873269] ? pte_offset_kernel+0xc7/0xc7 [ 48.877483] ? do_raw_spin_trylock+0x190/0x190 [ 48.882053] ? check_noncircular+0x20/0x20 [ 48.886272] __handle_mm_fault+0x1d8f/0x3ce0 [ 48.890669] ? __pmd_alloc+0x4e0/0x4e0 [ 48.894529] ? __switch_to_asm+0x43/0x80 [ 48.898563] ? __switch_to_asm+0x43/0x80 [ 48.902598] ? __switch_to_asm+0x53/0x80 [ 48.906633] ? __switch_to_asm+0x43/0x80 [ 48.910677] ? find_held_lock+0x35/0x1d0 [ 48.914726] ? handle_mm_fault+0x2a0/0x930 [ 48.918940] ? lock_downgrade+0x980/0x980 [ 48.923106] handle_mm_fault+0x38f/0x930 [ 48.927139] ? down_read_trylock+0xdb/0x170 [ 48.931441] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 48.935994] ? vmacache_find+0x5f/0x280 [ 48.939953] ? find_vma+0x30/0x150 [ 48.943475] __do_page_fault+0x5c9/0xc90 [ 48.947512] ? vfs_write+0x374/0x510 [ 48.951213] ? mm_fault_error+0x2c0/0x2c0 [ 48.955338] ? __lock_is_held+0xb6/0x140 [ 48.959379] ? exit_to_usermode_loop+0x8c/0x2f0 [ 48.964031] do_page_fault+0xee/0x720 [ 48.967808] ? trace_hardirqs_off+0xd/0x10 [ 48.972020] ? __do_page_fault+0xc90/0xc90 [ 48.976236] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 48.981764] ? retint_user+0x18/0x18 [ 48.985458] ? page_fault+0x36/0x60 [ 48.989061] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 48.993882] ? page_fault+0x36/0x60 [ 48.997487] page_fault+0x4c/0x60 [ 49.000915] RIP: 0033:0x40b0d0 [ 49.004082] RSP: 002b:00007f1458585578 EFLAGS: 00010246 [ 49.009422] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 6d5f706667203a72 [ 49.016668] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007f14585855c0 [ 49.023911] RBP: 0000000000000008 R08: 0000000001394f50 R09: 0000000000000cff [ 49.031155] R10: 6f2064656b6f766e R11: 656c6c696b2d6d6f R12: 00000000013b6b60 [ 49.039387] R13: 0000000000000000 R14: 0000000000000000 R15: 00000000013b3c40 [ 49.046662] CPU: 0 PID: 3484 Comm: syzkaller557408 Not tainted 4.15.0-rc7-mm1+ #53 [ 49.046764] Mem-Info: [ 49.046781] active_anon:1949 inactive_anon:61 isolated_anon:0 [ 49.046781] active_file:21 inactive_file:0 isolated_file:0 [ 49.046781] unevictable:0 dirty:0 writeback:0 unstable:0 [ 49.046781] slab_reclaimable:7262 slab_unreclaimable:83363 [ 49.046781] mapped:2 shmem:68 pagetables:302 bounce:0 [ 49.046781] free:15878 free_pcp:85 free_cma:0 [ 49.046794] Node 0 active_anon:7796kB inactive_anon:244kB active_file:84kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:272kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 2048kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 49.046797] 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 [ 49.046813] lowmem_reserve[]: 0 2870 6381 6381 [ 49.046826] Node 0 DMA32 free:29172kB min:30332kB low:37912kB high:45492kB active_anon:28kB inactive_anon:4kB active_file:20kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2942332kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:144kB local_pcp:120kB free_cma:0kB [ 49.046842] lowmem_reserve[]: 0 0 3510 3510 [ 49.046855] Node 0 Normal free:18432kB min:37084kB low:46352kB high:55620kB active_anon:7768kB inactive_anon:240kB active_file:64kB inactive_file:0kB unevictable:0kB writepending:0kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3008kB pagetables:1208kB bounce:0kB free_pcp:196kB local_pcp:156kB free_cma:0kB [ 49.046870] lowmem_reserve[]: 0 0 0 0 [ 49.046883] 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 [ 49.046942] Node 0 DMA32: 5*4kB (UME) 4*8kB (ME) 4*16kB (ME) 2*32kB (UE) 5*64kB (ME) 6*128kB (UME) 5*256kB (ME) 4*512kB (ME) 4*1024kB (UME) 4*2048kB (UME) 3*4096kB (M) = 29172kB [ 49.047021] Node 0 Normal: 316*4kB (UM) 236*8kB (ME) 177*16kB (UME) 103*32kB (UME) 41*64kB (UM) 19*128kB (UM) 16*256kB (UM) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 18432kB [ 49.047077] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 49.047079] 92 total pagecache pages [ 49.047088] 0 pages in swap cache [ 49.047093] Swap cache stats: add 0, delete 0, find 0/0 [ 49.047095] Free swap = 0kB [ 49.047098] Total swap = 0kB [ 49.047101] 1965979 pages RAM [ 49.047103] 0 pages HighMem/MovableOnly [ 49.047106] 327762 pages reserved [ 49.047110] Unreclaimable slab info: [ 49.047113] Name Used Total [ 49.047119] hashtab_node 118KB 119KB [ 49.047125] ebitmap_node 382KB 385KB [ 49.047130] avtab_node 1012KB 1013KB [ 49.047140] TIPC 1KB 7KB [ 49.047147] SCTPv6 2KB 4KB [ 49.047157] DCCPv6 2KB 7KB [ 49.047163] DCCP 2KB 6KB [ 49.047183] fib6_nodes 0KB 4KB [ 49.047188] ip6_dst_cache 6KB 7KB [ 49.047194] RAWv6 9KB 19KB [ 49.047199] UDPv6 12KB 14KB [ 49.047206] TCPv6 2KB 5KB [ 49.047222] sd_ext_cdb 0KB 3KB [ 49.047227] scsi_sense_cache 114KB 120KB [ 49.047233] virtio_scsi_cmd 16KB 16KB [ 49.047240] sgpool-128 8KB 8KB [ 49.047245] sgpool-64 4KB 6KB [ 49.047250] sgpool-32 236KB 244KB [ 49.047254] sgpool-16 57KB 60KB [ 49.047259] sgpool-8 193KB 195KB [ 49.047266] cfq_io_cq 15KB 19KB [ 49.047270] cfq_queue 24KB 30KB [ 49.047276] mqueue_inode_cache 1KB 7KB [ 49.047282] nfs_commit_data 3KB 7KB [ 49.047287] nfs_write_data 34KB 37KB [ 49.047294] jbd2_inode 1KB 3KB [ 49.047299] ext4_system_zone 0KB 3KB [ 49.047312] bio-1 1KB 3KB [ 49.047324] rpc_buffers 17KB 19KB [ 49.047329] rpc_tasks 2KB 3KB [ 49.047334] UNIX 773KB 773KB [ 49.047341] tcp_bind_bucket 0KB 4KB [ 49.047348] ip_fib_trie 0KB 3KB [ 49.047353] ip_fib_alias 0KB 3KB [ 49.047357] ip_dst_cache 3KB 8KB [ 49.047363] RAW 5KB 7KB [ 49.047367] UDP 29KB 31KB [ 49.047374] TCP 7KB 15KB [ 49.047379] hugetlbfs_inode_cache 1KB 7KB [ 49.047384] eventpoll_pwq 10KB 11KB [ 49.047389] eventpoll_epi 20KB 23KB [ 49.047394] inotify_inode_mark 3KB 11KB [ 49.047400] request_queue 31KB 39KB [ 49.047406] blkdev_ioc 20KB 27KB [ 49.047411] bio-0 377KB 382KB [ 49.047416] biovec-(1<<(21-12)) 577KB 577KB [ 49.047422] biovec-64 308KB 315KB [ 49.047427] biovec-16 38KB 41KB [ 49.047432] bio_integrity_payload 0KB 4KB [ 49.047436] khugepaged_mm_slot 0KB 3KB [ 49.047444] uid_cache 0KB 3KB [ 49.047449] dmaengine-unmap-2 0KB 3KB [ 49.047454] audit_buffer 0KB 3KB [ 49.047460] skbuff_fclone_cache 130KB 131KB [ 49.047464] skbuff_head_cache 1713KB 1713KB [ 49.047469] configfs_dir_cache 0KB 4KB [ 49.047474] file_lock_cache 157KB 158KB [ 49.047478] file_lock_ctx 1KB 3KB [ 49.047483] fsnotify_mark_connector 2KB 7KB [ 49.047489] shmem_inode_cache 1040KB 1042KB [ 49.047494] task_delay_info 296KB 367KB [ 49.047500] sigqueue 335KB 338KB [ 49.047505] kernfs_node_cache 2160KB 2161KB [ 49.047510] mnt_cache 15KB 20KB [ 49.047515] filp 8453KB 8651KB [ 49.047521] names_cache 111354KB 111384KB [ 49.047529] avc_node 37KB 39KB [ 49.047534] selinux_file_security 420KB 453KB [ 49.047539] selinux_inode_security 1929KB 1936KB [ 49.047543] key_jar 3KB 7KB [ 49.047548] nsproxy 0KB 3KB [ 49.047553] vm_area_struct 17732KB 17742KB [ 49.047557] mm_struct 4223KB 4234KB [ 49.047562] fs_cache 395KB 424KB [ 49.047567] files_cache 1484KB 1488KB [ 49.047572] signal_cache 2369KB 2371KB [ 49.047577] sighand_cache 210KB 270KB [ 49.047582] task_struct 10112KB 10112KB [ 49.047586] cred_jar 2245KB 2252KB [ 49.047591] anon_vma_chain 7339KB 7347KB [ 49.047596] anon_vma 121KB 292KB [ 49.047600] pid 206KB 260KB [ 49.047605] Acpi-Operand 106KB 170KB [ 49.047612] Acpi-Namespace 19KB 23KB [ 49.047618] numa_policy 0KB 3KB [ 49.047623] debug_objects_cache 496KB 497KB [ 49.047628] trace_event_file 145KB 147KB [ 49.047633] ftrace_event_field 257KB 259KB [ 49.047638] pool_workqueue 22KB 24KB [ 49.047644] page->ptl 2858KB 2866KB [ 49.047667] kmalloc-262144 1032KB 1032KB [ 49.047672] kmalloc-131072 650KB 650KB [ 49.047677] kmalloc-65536 264KB 264KB [ 49.047681] kmalloc-32768 627KB 627KB [ 49.047686] kmalloc-16384 148KB 148KB [ 49.047690] kmalloc-8192 503KB 503KB [ 49.047695] kmalloc-4096 8279KB 8308KB [ 49.047700] kmalloc-2048 5083KB 5087KB [ 49.047705] kmalloc-1024 2850KB 2850KB [ 49.047709] kmalloc-512 2625KB 2816KB [ 49.047714] kmalloc-256 2015KB 2362KB [ 49.047718] kmalloc-128 390KB 527KB [ 49.047723] kmalloc-96 2068KB 2068KB [ 49.047728] kmalloc-64 2480KB 2480KB [ 49.047732] kmalloc-32 2386KB 2397KB [ 49.047737] kmalloc-192 908KB 908KB [ 49.047742] kmem_cache 100KB 101KB [ 49.047745] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 49.047772] [ 1781] 0 1781 5366 167 86016 0 -1000 udevd [ 49.047783] [ 3325] 0 3325 14265 186 122880 0 0 rsyslogd [ 49.047792] [ 3381] 0 3381 4725 51 86016 0 0 cron [ 49.047802] [ 3399] 0 3399 3736 45 65536 0 0 mcstransd [ 49.047813] [ 3427] 0 3427 12490 152 143360 0 -1000 sshd [ 49.047823] [ 3451] 0 3451 3694 40 73728 0 0 getty [ 49.047834] [ 3452] 0 3452 3694 41 77824 0 0 getty [ 49.047844] [ 3453] 0 3453 3694 41 77824 0 0 getty [ 49.047854] [ 3454] 0 3454 3694 40 73728 0 0 getty [ 49.047864] [ 3455] 0 3455 3694 42 73728 0 0 getty [ 49.047874] [ 3456] 0 3456 3694 40 73728 0 0 getty [ 49.047884] [ 3457] 0 3457 3649 40 69632 0 0 getty [ 49.047894] [ 3459] 0 3459 5662 454 86016 0 -1000 udevd [ 49.047905] [ 3460] 0 3460 5662 454 86016 0 -1000 udevd [ 49.047915] [ 3477] 0 3477 17821 198 184320 0 0 sshd [ 49.047926] [ 3479] 0 3479 280 1 32768 0 0 syzkaller557408 [ 49.047940] [ 3480] 0 3480 4375 0 32768 0 0 syzkaller557408 [ 49.047950] [ 3481] 0 3481 4375 0 32768 0 0 syzkaller557408 [ 49.047960] [ 3482] 0 3482 4375 0 32768 0 0 syzkaller557408 [ 49.047970] [ 3483] 0 3483 4375 0 32768 0 0 syzkaller557408 [ 49.047980] [ 3484] 0 3484 4375 0 32768 0 0 syzkaller557408 [ 49.047990] [ 3485] 0 3485 4375 0 32768 0 0 syzkaller557408 [ 49.048000] [ 3486] 0 3486 4375 0 32768 0 0 syzkaller557408 [ 49.048030] [ 3487] 0 3487 4375 0 32768 0 0 syzkaller557408 [ 49.048036] Out of memory: Kill process 3477 (sshd) score 0 or sacrifice child [ 49.048349] Killed process 3479 (syzkaller557408) total-vm:1120kB, anon-rss:4kB, file-rss:0kB, shmem-rss:0kB [ 50.102140] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.111466] Call Trace: [ 50.114031] dump_stack+0x194/0x257 [ 50.117630] ? arch_local_irq_restore+0x53/0x53 [ 50.122265] ? idr_get_free_cmn+0xfd0/0xfd0 [ 50.126562] warn_alloc+0x19a/0x2b0 [ 50.130162] ? zone_watermark_ok_safe+0x400/0x400 [ 50.134975] ? __next_timer_interrupt+0x150/0x150 [ 50.139790] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 50.145216] __alloc_pages_slowpath+0x2501/0x2cc0 [ 50.150052] ? warn_alloc+0x2b0/0x2b0 [ 50.153821] ? lock_release+0xa40/0xa40 [ 50.157767] ? print_irqtrace_events+0x270/0x270 [ 50.162503] ? lock_acquire+0x1d5/0x580 [ 50.166445] ? lock_acquire+0x1d5/0x580 [ 50.170391] ? __lock_acquire+0x664/0x3e00 [ 50.174604] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 50.180454] ? check_preempt_curr+0x350/0x350 [ 50.184912] ? __lock_is_held+0xb6/0x140 [ 50.188958] ? __lock_is_held+0xb6/0x140 [ 50.192996] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 50.198866] ? __might_sleep+0x95/0x190 [ 50.202810] __alloc_pages_nodemask+0x9fb/0xd80 [ 50.207889] ? __alloc_pages_slowpath+0x2cc0/0x2cc0 [ 50.212884] ? pcpu_chunk_refresh_hint+0x425/0x570 [ 50.217783] ? print_irqtrace_events+0x270/0x270 [ 50.222513] ? __lock_is_held+0xb6/0x140 [ 50.226545] ? find_next_bit+0xcc/0x100 [ 50.230493] pcpu_populate_chunk+0x1b3/0x880 [ 50.234867] ? find_next_bit+0x97/0x100 [ 50.238814] pcpu_alloc+0x978/0x10e0 [ 50.242506] ? pcpu_free_area+0xa00/0xa00 [ 50.246632] ? vmap_page_range_noflush+0x523/0x720 [ 50.251543] ? map_vm_area+0x9e/0xd0 [ 50.255229] ? __vmalloc_node_range+0x37a/0x650 [ 50.259872] ? array_map_alloc+0x351/0xa00 [ 50.264074] ? __vmalloc_node_flags_caller+0x50/0x60 [ 50.269146] __alloc_percpu_gfp+0x27/0x30 [ 50.273263] array_map_alloc+0x778/0xa00 [ 50.277300] SyS_bpf+0x7f8/0x4400 [ 50.280723] ? perf_event_mmap+0x115/0x12a0 [ 50.285021] ? bpf_prog_get+0x20/0x20 [ 50.288794] ? perf_event_fork+0x30/0x30 [ 50.292829] ? __lock_is_held+0xb6/0x140 [ 50.296858] ? check_noncircular+0x20/0x20 [ 50.301057] ? vma_wants_writenotify+0x51/0x3b0 [ 50.305703] ? __handle_mm_fault+0x80e/0x3ce0 [ 50.310178] ? check_noncircular+0x20/0x20 [ 50.314377] ? __pmd_alloc+0x4e0/0x4e0 [ 50.318231] ? vma_link+0xe9/0x170 [ 50.321744] ? find_held_lock+0x35/0x1d0 [ 50.325776] ? handle_mm_fault+0x2a0/0x930 [ 50.329978] ? find_held_lock+0x35/0x1d0 [ 50.334019] ? __do_page_fault+0x5f7/0xc90 [ 50.338224] ? lock_downgrade+0x980/0x980 [ 50.342345] ? handle_mm_fault+0x476/0x930 [ 50.346543] ? down_read_trylock+0xdb/0x170 [ 50.350832] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 50.355378] ? vmacache_find+0x5f/0x280 [ 50.359320] ? vmacache_update+0xfe/0x130 [ 50.363441] ? up_read+0x1a/0x40 [ 50.366772] ? __do_page_fault+0x3d6/0xc90 [ 50.370979] ? mm_fault_error+0x2c0/0x2c0 [ 50.375102] ? do_page_fault+0xee/0x720 [ 50.379045] ? __do_page_fault+0xc90/0xc90 [ 50.383253] ? SyS_mmap_pgoff+0x243/0x5f0 [ 50.387378] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 50.392110] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 50.396829] RIP: 0033:0x440139 [ 50.399983] RSP: 002b:00007ffe8b34ffd8 EFLAGS: 00000217 ORIG_RAX: 0000000000000141 [ 50.407659] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 0000000000440139 [ 50.414894] RDX: 000000000000002c RSI: 0000000020c47fec RDI: 0000000000000000 [ 50.422129] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 50.429363] R10: 00000000ffffffff R11: 0000000000000217 R12: 00000000004016a0 [ 50.436599] R13: 0000000000401730 R14: 0000000000000000 R15: 0000000000000000 [ 50.444056] Mem-Info: [ 50.447583] active_anon:1948 inactive_anon:61 isolated_anon:0 [ 50.447583] active_file:12 inactive_file:12 isolated_file:0 [ 50.447583] unevictable:0 dirty:0 writeback:0 unstable:0 Connection to 10.128.0.16 closed by remote host. [ 50.447583] slab_reclaimable:7262 slab_unr