[....] Starting enhanced syslogd: rsyslogd[ 12.536800] audit: type=1400 audit(1515721480.595:5): avc: denied { syslog } for pid=3343 comm="rsyslogd" capability=34 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 [?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 17.351802] audit: type=1400 audit(1515721485.410:6): avc: denied { map } for pid=3484 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 '10.128.0.47' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program [ 43.672604] audit: type=1400 audit(1515721511.731:7): avc: denied { map } for pid=3502 comm="syzkaller146509" path="/root/syzkaller146509433" 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 [ 43.730092] audit: type=1400 audit(1515721511.731:8): avc: denied { map_create } for pid=3510 comm="syzkaller146509" 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 [ 50.012963] syzkaller146509 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 50.025440] syzkaller146509 cpuset=/ mems_allowed=0 [ 50.030876] CPU: 0 PID: 3503 Comm: syzkaller146509 Not tainted 4.15.0-rc7+ #184 [ 50.038319] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.047651] Call Trace: [ 50.050210] dump_stack+0x194/0x257 [ 50.053810] ? arch_local_irq_restore+0x53/0x53 [ 50.058452] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 50.063618] dump_header+0x28c/0xe1e [ 50.067305] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 50.072466] ? pagefault_out_of_memory+0x152/0x152 [ 50.077373] ? check_noncircular+0x20/0x20 [ 50.081579] ? print_irqtrace_events+0x270/0x270 [ 50.086305] ? __lock_acquire+0x664/0x3e00 [ 50.090510] ? check_noncircular+0x20/0x20 [ 50.094718] ? find_held_lock+0x35/0x1d0 [ 50.098750] ? check_noncircular+0x20/0x20 [ 50.102952] ? task_will_free_mem+0x252/0xaa0 [ 50.107419] ? print_irqtrace_events+0x270/0x270 [ 50.112158] ? ___ratelimit+0x30d/0x630 [ 50.116102] ? lock_downgrade+0x980/0x980 [ 50.120220] ? lock_release+0xa40/0xa40 [ 50.124167] ? mark_held_locks+0xaf/0x100 [ 50.128284] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 50.133366] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 50.138352] ? trace_hardirqs_on+0xd/0x10 [ 50.142470] ? ___ratelimit+0x95/0x630 [ 50.146328] ? idr_get_free_cmn+0xfd0/0xfd0 [ 50.150618] ? check_noncircular+0x20/0x20 [ 50.154819] ? find_held_lock+0x138/0x1d0 [ 50.158954] oom_kill_process+0x8b5/0x14a0 [ 50.163161] ? has_ns_capability_noaudit+0x163/0x2a0 [ 50.168231] ? lock_downgrade+0x980/0x980 [ 50.172351] ? oom_evaluate_task+0x480/0x480 [ 50.176747] ? security_capable_noaudit+0x8b/0xc0 [ 50.181562] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 50.186635] ? has_capability+0x30/0x30 [ 50.190577] ? do_raw_spin_trylock+0x190/0x190 [ 50.195130] ? check_noncircular+0x20/0x20 [ 50.199338] ? has_capability_noaudit+0x24/0x30 [ 50.203977] ? oom_badness+0xd1/0x980 [ 50.207744] ? lock_release+0xa40/0xa40 [ 50.211690] ? find_lock_task_mm+0x460/0x460 [ 50.216081] ? find_held_lock+0x35/0x1d0 [ 50.220118] ? out_of_memory+0xb3a/0x1220 [ 50.224234] ? lock_downgrade+0x980/0x980 [ 50.228352] ? lock_release+0xa40/0xa40 [ 50.232294] ? lock_acquire+0x1d5/0x580 [ 50.236237] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 50.241141] ? oom_evaluate_task+0x284/0x480 [ 50.245521] out_of_memory+0x86d/0x1220 [ 50.249464] ? find_next_bit+0x27/0x30 [ 50.253325] ? oom_killer_disable+0x310/0x310 [ 50.257786] ? mutex_trylock+0x23a/0x2d0 [ 50.261815] ? __lock_is_held+0xb6/0x140 [ 50.265844] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 50.271273] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 50.276108] ? warn_alloc+0x2b0/0x2b0 [ 50.279881] ? lock_release+0xa40/0xa40 [ 50.283826] ? print_irqtrace_events+0x270/0x270 [ 50.288564] ? put_prev_task_fair+0x80/0x80 [ 50.292863] ? lock_acquire+0x1d5/0x580 [ 50.296804] ? lock_acquire+0x1d5/0x580 [ 50.300750] ? __lock_acquire+0x664/0x3e00 [ 50.304955] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 50.310806] ? lock_release+0xa40/0xa40 [ 50.314766] ? __lock_is_held+0xb6/0x140 [ 50.318806] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 50.324657] ? find_held_lock+0x35/0x1d0 [ 50.328691] ? __might_sleep+0x95/0x190 [ 50.332637] __alloc_pages_nodemask+0x9fb/0xd80 [ 50.337274] ? lock_release+0xa40/0xa40 [ 50.341223] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 50.346225] ? pcpu_chunk_refresh_hint+0x425/0x570 [ 50.351126] ? print_irqtrace_events+0x270/0x270 [ 50.355855] ? __lock_is_held+0xb6/0x140 [ 50.359892] ? find_next_bit+0x27/0x30 [ 50.363759] pcpu_populate_chunk+0x1b3/0x880 [ 50.368147] pcpu_alloc+0x978/0x10e0 [ 50.371840] ? pcpu_free_area+0xa00/0xa00 [ 50.375962] ? vmap_page_range_noflush+0x523/0x720 [ 50.380868] ? retint_kernel+0x10/0x10 [ 50.384738] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 50.389728] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 50.394459] ? retint_kernel+0x10/0x10 [ 50.398324] ? array_map_alloc+0x673/0x830 [ 50.402532] __alloc_percpu_gfp+0x27/0x30 [ 50.406651] array_map_alloc+0x68a/0x830 [ 50.410696] SyS_bpf+0x7f8/0x4420 [ 50.414121] ? check_noncircular+0x20/0x20 [ 50.418330] ? bpf_prog_get+0x20/0x20 [ 50.422104] ? perf_event_fork+0x30/0x30 [ 50.426142] ? __lock_is_held+0xb6/0x140 [ 50.430171] ? check_noncircular+0x20/0x20 [ 50.434385] ? __handle_mm_fault+0x80e/0x3ce0 [ 50.438853] ? check_noncircular+0x20/0x20 [ 50.443063] ? __pmd_alloc+0x4e0/0x4e0 [ 50.446923] ? vma_link+0xe9/0x170 [ 50.450442] ? find_held_lock+0x35/0x1d0 [ 50.454477] ? handle_mm_fault+0x248/0x8d0 [ 50.458689] ? find_held_lock+0x35/0x1d0 [ 50.462739] ? __do_page_fault+0x5f7/0xc90 [ 50.466952] ? lock_downgrade+0x980/0x980 [ 50.471076] ? handle_mm_fault+0x410/0x8d0 [ 50.475276] ? down_read_trylock+0xdb/0x170 [ 50.479564] ? __do_page_fault+0x32d/0xc90 [ 50.483779] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 50.488327] ? vmacache_find+0x5f/0x280 [ 50.492276] ? vmacache_update+0xfe/0x130 [ 50.496395] ? up_read+0x1a/0x40 [ 50.499729] ? __do_page_fault+0x3d6/0xc90 [ 50.503938] ? mm_fault_error+0x2c0/0x2c0 [ 50.508063] ? do_page_fault+0xee/0x720 [ 50.512010] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 50.517522] ? __do_page_fault+0xc90/0xc90 [ 50.521745] ? SyS_mmap_pgoff+0x243/0x5f0 [ 50.525870] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 50.530600] entry_SYSCALL_64_fastpath+0x23/0x9a [ 50.535333] RIP: 0033:0x440139 [ 50.538491] RSP: 002b:00007fffea9d2488 EFLAGS: 00000217 ORIG_RAX: 0000000000000141 [ 50.546168] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 0000000000440139 [ 50.553417] RDX: 000000000000002c RSI: 0000000020c47fec RDI: 0000000000000000 [ 50.560670] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 50.567908] R10: 00000000ffffffff R11: 0000000000000217 R12: 00000000004016a0 [ 50.575156] R13: 0000000000401730 R14: 0000000000000000 R15: 0000000000000000 [ 50.582700] Mem-Info: [ 50.585134] active_anon:7885 inactive_anon:62 isolated_anon:0 [ 50.585134] active_file:10 inactive_file:5 isolated_file:0 [ 50.585134] unevictable:0 dirty:0 writeback:0 unstable:0 [ 50.585134] slab_reclaimable:7223 slab_unreclaimable:84009 [ 50.585134] mapped:6 shmem:68 pagetables:346 bounce:0 [ 50.585134] free:24116 free_pcp:0 free_cma:0 [ 50.617037] Node 0 active_anon:31540kB inactive_anon:248kB active_file:40kB inactive_file:20kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:24kB dirty:0kB writeback:0kB shmem:272kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 16384kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 50.644044] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 50.670168] lowmem_reserve[]: 0 2870 6381 6381 [ 50.674760] Node 0 DMA32 free:43904kB min:30332kB low:37912kB high:45492kB active_anon:0kB inactive_anon:0kB active_file:12kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2942352kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 50.702023] lowmem_reserve[]: 0 0 3510 3510 [ 50.706352] Node 0 Normal free:36652kB min:37084kB low:46352kB high:55620kB active_anon:31540kB inactive_anon:248kB active_file:132kB inactive_file:156kB unevictable:0kB writepending:0kB present:4718592kB managed:3594632kB mlocked:0kB kernel_stack:3104kB pagetables:1384kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 50.735195] lowmem_reserve[]: 0 0 0 0 [ 50.739043] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 50.752744] Node 0 DMA32: 4*4kB (UME) 6*8kB (UME) 2*16kB (ME) 5*32kB (UME) 6*64kB (UME) 6*128kB (UME) 6*256kB (UME) 4*512kB (ME) 4*1024kB (UME) 3*2048kB (ME) 7*4096kB (M) = 43904kB [ 50.769044] Node 0 Normal: 752*4kB (ME) 519*8kB (UME) 318*16kB (UM) 159*32kB (UM) 78*64kB (UM) 37*128kB (M) 22*256kB (UM) 8*512kB (UM) 0*1024kB 0*2048kB 0*4096kB = 36792kB [ 50.784603] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 50.793184] 95 total pagecache pages [ 50.796918] 0 pages in swap cache [ 50.800370] Swap cache stats: add 0, delete 0, find 0/0 [ 50.805723] Free swap = 0kB [ 50.808730] Total swap = 0kB [ 50.811738] 1965979 pages RAM [ 50.814841] 0 pages HighMem/MovableOnly [ 50.818800] 327756 pages reserved [ 50.822290] Unreclaimable slab info: [ 50.826061] Name Used Total [ 50.831671] hashtab_node 118KB 119KB [ 50.837043] ebitmap_node 382KB 385KB [ 50.842403] avtab_node 1012KB 1013KB [ 50.847758] TIPC 1KB 7KB [ 50.853126] SCTPv6 2KB 4KB [ 50.858489] DCCPv6 2KB 7KB [ 50.863843] DCCP 2KB 6KB [ 50.869231] fib6_nodes 0KB 4KB [ 50.874593] ip6_dst_cache 5KB 11KB [ 50.879961] RAWv6 9KB 19KB [ 50.885346] UDPv6 12KB 14KB [ 50.890705] TCPv6 2KB 5KB [ 50.896069] sd_ext_cdb 0KB 3KB [ 50.901437] scsi_sense_cache 83KB 84KB [ 50.906799] virtio_scsi_cmd 16KB 16KB [ 50.912152] sgpool-128 8KB 8KB [ 50.917514] sgpool-64 4KB 6KB [ 50.922875] sgpool-32 86KB 86KB [ 50.928237] sgpool-16 22KB 22KB [ 50.933600] sgpool-8 157KB 157KB [ 50.938960] cfq_io_cq 15KB 19KB [ 50.944311] cfq_queue 24KB 27KB [ 50.949674] mqueue_inode_cache 1KB 7KB [ 50.955144] nfs_commit_data 3KB 7KB [ 50.960503] nfs_write_data 34KB 37KB [ 50.965870] jbd2_inode 1KB 3KB [ 50.971236] ext4_system_zone 0KB 3KB [ 50.976601] bio-1 1KB 3KB [ 50.981957] rpc_buffers 17KB 19KB [ 50.987325] rpc_tasks 2KB 3KB [ 50.992687] UNIX 784KB 784KB [ 50.998128] tcp_bind_bucket 0KB 4KB [ 51.003493] ip_fib_trie 0KB 3KB [ 51.008856] ip_fib_alias 0KB 3KB [ 51.014206] ip_dst_cache 3KB 8KB [ 51.019569] RAW 5KB 7KB [ 51.024939] UDP 29KB 39KB [ 51.030290] request_sock_TCP 0KB 3KB [ 51.035655] TCP 7KB 7KB [ 51.041037] hugetlbfs_inode_cache 1KB 7KB [ 51.046747] eventpoll_pwq 10KB 11KB [ 51.052098] eventpoll_epi 18KB 23KB [ 51.057461] inotify_inode_mark 3KB 7KB [ 51.062919] request_queue 31KB 45KB [ 51.068272] blkdev_ioc 20KB 23KB [ 51.073648] bio-0 277KB 277KB [ 51.079037] biovec-(1<<(21-12)) 478KB 478KB [ 51.084572] biovec-64 94KB 102KB [ 51.089924] biovec-16 10KB 15KB [ 51.095288] bio_integrity_payload 0KB 4KB [ 51.100994] khugepaged_mm_slot 0KB 3KB [ 51.106452] uid_cache 1KB 3KB [ 51.111804] dmaengine-unmap-2 0KB 3KB [ 51.117167] audit_buffer 0KB 3KB [ 51.122529] skbuff_fclone_cache 129KB 131KB [ 51.128053] skbuff_head_cache 1699KB 1702KB [ 51.133416] configfs_dir_cache 0KB 4KB [ 51.138869] file_lock_cache 156KB 158KB [ 51.144222] file_lock_ctx 1KB 3KB [ 51.149586] fsnotify_mark_connector 2KB 3KB [ 51.155479] shmem_inode_cache 1041KB 1042KB [ 51.160841] task_delay_info 303KB 343KB [ 51.166196] sigqueue 347KB 354KB [ 51.171560] kernfs_node_cache 2156KB 2157KB [ 51.176937] mnt_cache 15KB 16KB [ 51.182290] filp 8663KB 8883KB [ 51.187654] names_cache 112939KB 112977KB [ 51.193037] avc_node 38KB 43KB [ 51.198407] selinux_file_security 435KB 453KB [ 51.204108] selinux_inode_security 1931KB 1936KB [ 51.209892] key_jar 3KB 7KB [ 51.215254] nsproxy 0KB 3KB [ 51.220612] vm_area_struct 18015KB 18017KB [ 51.225964] mm_struct 4318KB 4328KB [ 51.231325] fs_cache 405KB 440KB [ 51.236684] files_cache 1515KB 1518KB [ 51.242036] signal_cache 2419KB 2422KB [ 51.247400] sighand_cache 217KB 270KB [ 51.252762] task_struct 10326KB 10326KB [ 51.258112] cred_jar 2284KB 2288KB [ 51.263476] anon_vma_chain 7481KB 7485KB [ 51.268838] anon_vma 161KB 281KB [ 51.274192] pid 211KB 256KB [ 51.279558] Acpi-Operand 106KB 170KB [ 51.284924] Acpi-Namespace 19KB 23KB [ 51.290281] numa_policy 0KB 3KB [ 51.295649] debug_objects_cache 476KB 477KB [ 51.301196] trace_event_file 145KB 147KB [ 51.306558] ftrace_event_field 257KB 259KB [ 51.311998] pool_workqueue 22KB 24KB [ 51.317369] page->ptl 2975KB 2976KB [ 51.322744] kmalloc-262144 1032KB 1032KB [ 51.328095] kmalloc-131072 650KB 650KB [ 51.333460] kmalloc-65536 264KB 264KB [ 51.338830] kmalloc-32768 627KB 627KB [ 51.344185] kmalloc-16384 148KB 148KB [ 51.349551] kmalloc-8192 503KB 503KB [ 51.354915] kmalloc-4096 8661KB 8699KB [ 51.360270] kmalloc-2048 3130KB 3136KB [ 51.365637] kmalloc-1024 3512KB 3512KB [ 51.370998] kmalloc-512 2670KB 2906KB [ 51.376378] kmalloc-256 2084KB 2475KB [ 51.381741] kmalloc-128 397KB 523KB [ 51.387111] kmalloc-96 2044KB 2044KB [ 51.392494] kmalloc-64 2460KB 2460KB [ 51.397850] kmalloc-32 2401KB 2401KB [ 51.403312] kmalloc-192 904KB 904KB [ 51.408672] kmem_cache 100KB 101KB [ 51.414029] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 51.422686] [ 1774] 0 1774 5366 167 90112 0 -1000 udevd [ 51.430880] [ 3200] 0 3200 2493 574 57344 0 0 dhclient [ 51.439294] [ 3343] 0 3343 14298 174 114688 0 0 rsyslogd [ 51.447717] [ 3398] 0 3398 4725 50 86016 0 0 cron [ 51.455790] [ 3408] 0 3408 3736 45 69632 0 0 mcstransd [ 51.464297] [ 3426] 0 3426 12927 1228 131072 0 0 restorecond [ 51.472978] [ 3444] 0 3444 12490 153 139264 0 -1000 sshd [ 51.481048] [ 3468] 0 3468 3694 39 77824 0 0 getty [ 51.489215] [ 3469] 0 3469 3694 41 77824 0 0 getty [ 51.497383] [ 3470] 0 3470 3694 39 73728 0 0 getty [ 51.506454] [ 3471] 0 3471 3694 39 81920 0 0 getty [ 51.514607] [ 3472] 0 3472 3694 40 73728 0 0 getty [ 51.522753] [ 3473] 0 3473 3694 41 73728 0 0 getty [ 51.530911] [ 3474] 0 3474 3649 41 81920 0 0 getty [ 51.539073] [ 3479] 0 3479 5681 454 86016 0 -1000 udevd [ 51.547240] [ 3480] 0 3480 5681 454 86016 0 -1000 udevd [ 51.555419] [ 3500] 0 3500 17821 197 184320 0 0 sshd [ 51.563503] [ 3502] 0 3502 280 1 32768 0 0 syzkaller146509 [ 51.572523] [ 3503] 0 3503 4375 523 36864 0 0 syzkaller146509 [ 51.581551] [ 3504] 0 3504 4375 523 36864 0 0 syzkaller146509 [ 51.590585] [ 3505] 0 3505 4375 523 36864 0 0 syzkaller146509 [ 51.599630] [ 3506] 0 3506 4375 523 36864 0 0 syzkaller146509 [ 51.608651] [ 3507] 0 3507 4375 523 36864 0 0 syzkaller146509 [ 51.617678] [ 3508] 0 3508 4375 523 36864 0 0 syzkaller146509 [ 51.626698] [ 3509] 0 3509 4375 523 36864 0 0 syzkaller146509 [ 51.635735] [ 3510] 0 3510 4375 523 36864 0 0 syzkaller146509 [ 51.644748] Out of memory: Kill process 3426 (restorecond) score 0 or sacrifice child [ 51.653141] Killed process 3426 (restorecond) total-vm:51708kB, anon-rss:4920kB, file-rss:0kB, shmem-rss:0kB [ 51.679801] syzkaller146509 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 51.692774] syzkaller146509 cpuset=/ mems_allowed=0 [ 51.697859] CPU: 1 PID: 3510 Comm: syzkaller146509 Not tainted 4.15.0-rc7+ #184 [ 51.705294] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.714622] Call Trace: [ 51.717220] dump_stack+0x194/0x257 [ 51.720836] ? arch_local_irq_restore+0x53/0x53 [ 51.725492] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 51.730665] dump_header+0x28c/0xe1e [ 51.734370] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 51.739545] ? pagefault_out_of_memory+0x152/0x152 [ 51.744459] ? check_noncircular+0x20/0x20 [ 51.748671] ? print_irqtrace_events+0x270/0x270 [ 51.753405] ? __lock_acquire+0x664/0x3e00 [ 51.757612] ? check_noncircular+0x20/0x20 [ 51.761823] ? find_held_lock+0x35/0x1d0 [ 51.765859] ? check_noncircular+0x20/0x20 [ 51.770069] ? task_will_free_mem+0x252/0xaa0 [ 51.774541] ? print_irqtrace_events+0x270/0x270 [ 51.779309] ? ___ratelimit+0x30d/0x630 [ 51.783264] ? lock_downgrade+0x980/0x980 [ 51.787397] ? lock_release+0xa40/0xa40 [ 51.791352] ? mark_held_locks+0xaf/0x100 [ 51.795472] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 51.800544] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 51.805530] ? trace_hardirqs_on+0xd/0x10 [ 51.809649] ? ___ratelimit+0x95/0x630 [ 51.813507] ? idr_get_free_cmn+0xfd0/0xfd0 [ 51.817797] ? check_noncircular+0x20/0x20 [ 51.821997] ? find_held_lock+0x138/0x1d0 [ 51.826128] oom_kill_process+0x8b5/0x14a0 [ 51.830349] ? has_ns_capability_noaudit+0x163/0x2a0 [ 51.835432] ? lock_downgrade+0x980/0x980 [ 51.839553] ? oom_evaluate_task+0x480/0x480 [ 51.843953] ? security_capable_noaudit+0x8b/0xc0 [ 51.848782] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 51.853876] ? has_capability+0x30/0x30 [ 51.857840] ? do_raw_spin_trylock+0x190/0x190 [ 51.862414] ? check_noncircular+0x20/0x20 [ 51.866638] ? has_capability_noaudit+0x24/0x30 [ 51.871307] ? oom_badness+0xd1/0x980 [ 51.875081] ? lock_release+0xa40/0xa40 [ 51.879043] ? do_try_to_free_pages+0xc53/0x1020 [ 51.883794] ? find_lock_task_mm+0x460/0x460 [ 51.888201] ? find_held_lock+0x35/0x1d0 [ 51.892249] ? out_of_memory+0xb3a/0x1220 [ 51.896375] ? lock_downgrade+0x980/0x980 [ 51.900506] ? lock_release+0xa40/0xa40 [ 51.904448] ? lock_acquire+0x1d5/0x580 [ 51.908401] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 51.913313] ? oom_evaluate_task+0x284/0x480 [ 51.917711] out_of_memory+0x86d/0x1220 [ 51.921672] ? trace_hardirqs_on+0xd/0x10 [ 51.925824] ? oom_killer_disable+0x310/0x310 [ 51.930292] ? mutex_trylock+0x23a/0x2d0 [ 51.934344] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 51.939778] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 51.945644] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 51.950515] ? warn_alloc+0x2b0/0x2b0 [ 51.954308] ? lock_release+0xa40/0xa40 [ 51.958283] ? print_irqtrace_events+0x270/0x270 [ 51.963050] ? mutex_spin_on_owner+0x446/0xb50 [ 51.967625] ? __lock_acquire+0x664/0x3e00 [ 51.971848] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 51.977790] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 51.983679] ? __might_sleep+0x95/0x190 [ 51.987650] __alloc_pages_nodemask+0x9fb/0xd80 [ 51.992302] ? __queue_work+0x5b9/0x1230 [ 51.996360] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 52.001380] ? pcpu_chunk_refresh_hint+0x425/0x570 [ 52.006308] ? print_irqtrace_events+0x270/0x270 [ 52.011064] ? __lock_is_held+0xb6/0x140 [ 52.015129] ? find_next_bit+0x27/0x30 [ 52.019003] pcpu_populate_chunk+0x1b3/0x880 [ 52.023419] pcpu_alloc+0x978/0x10e0 [ 52.027135] ? pcpu_free_area+0xa00/0xa00 [ 52.031270] ? __pte_alloc_kernel+0x1bd/0x2a0 [ 52.035759] ? vmap_page_range_noflush+0x523/0x720 [ 52.040682] ? retint_kernel+0x10/0x10 [ 52.044543] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 52.049531] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 52.054262] ? retint_kernel+0x10/0x10 [ 52.058132] __alloc_percpu_gfp+0x27/0x30 [ 52.062269] array_map_alloc+0x68a/0x830 [ 52.066333] SyS_bpf+0x7f8/0x4420 [ 52.069775] ? check_noncircular+0x20/0x20 [ 52.074006] ? bpf_prog_get+0x20/0x20 [ 52.077802] ? perf_event_fork+0x30/0x30 [ 52.081864] ? __lock_is_held+0xb6/0x140 [ 52.085914] ? check_noncircular+0x20/0x20 [ 52.090147] ? __handle_mm_fault+0x80e/0x3ce0 [ 52.094641] ? check_noncircular+0x20/0x20 [ 52.098864] ? __pmd_alloc+0x4e0/0x4e0 [ 52.102737] ? vma_link+0xe9/0x170 [ 52.106277] ? find_held_lock+0x35/0x1d0 [ 52.110339] ? handle_mm_fault+0x248/0x8d0 [ 52.114568] ? find_held_lock+0x35/0x1d0 [ 52.118629] ? __do_page_fault+0x5f7/0xc90 [ 52.122862] ? lock_downgrade+0x980/0x980 [ 52.127010] ? handle_mm_fault+0x410/0x8d0 [ 52.131230] ? down_read_trylock+0xdb/0x170 [ 52.135541] ? __do_page_fault+0x32d/0xc90 [ 52.139768] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 52.144336] ? vmacache_find+0x5f/0x280 [ 52.148298] ? vmacache_update+0xfe/0x130 [ 52.152444] ? up_read+0x1a/0x40 [ 52.155801] ? __do_page_fault+0x3d6/0xc90 [ 52.160037] ? mm_fault_error+0x2c0/0x2c0 [ 52.164194] ? do_page_fault+0xee/0x720 [ 52.168159] ? __do_page_fault+0xc90/0xc90 [ 52.172400] ? SyS_mmap_pgoff+0x243/0x5f0 [ 52.176554] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 52.181313] entry_SYSCALL_64_fastpath+0x23/0x9a [ 52.186050] RIP: 0033:0x440139 [ 52.189217] RSP: 002b:00007fffea9d2488 EFLAGS: 00000217 ORIG_RAX: 0000000000000141 [ 52.196897] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 0000000000440139 [ 52.204136] RDX: 000000000000002c RSI: 0000000020c47fec RDI: 0000000000000000 [ 52.211380] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 52.218623] R10: 00000000ffffffff R11: 0000000000000217 R12: 00000000004016a0 [ 52.225863] R13: 0000000000401730 R14: 0000000000000000 R15: 0000000000000000 [ 52.233371] Mem-Info: [ 52.236813] active_anon:6656 inactive_anon:62 isolated_anon:0 [ 52.236813] active_file:51 inactive_file:82 isolated_file:0 [ 52.236813] unevictable:0 dirty:6 writeback:0 unstable:0 [ 52.236813] slab_reclaimable:7235 slab_unreclaimable:83447 [ 52.236813] mapped:53 shmem:68 pagetables:319 bounce:0 [ 52.236813] free:24801 free_pcp:110 free_cma:0 [ 52.269065] Node 0 active_anon:26624kB inactive_anon:248kB active_file:372kB inactive_file:324kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:512kB dirty:24kB writeback:0kB shmem:272kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 16384kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 52.296359] 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 [ 52.322537] lowmem_reserve[]: 0 2870 6381 6381 [ 52.327182] Node 0 DMA32 free:43904kB min:30332kB low:37912kB high:45492kB active_anon:0kB inactive_anon:0kB active_file:8kB inactive_file:4kB unevictable:0kB writepending:0kB present:3129332kB managed:2942352kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 52.354390] lowmem_reserve[]: 0 0 3510 3510 [ 52.358748] Node 0 Normal free:38868kB min:37084kB low:46352kB high:55620kB active_anon:26624kB inactive_anon:248kB active_file:600kB inactive_file:360kB unevictable:0kB writepending:24kB present:4718592kB managed:3594632kB mlocked:0kB kernel_stack:3072kB pagetables:1276kB bounce:0kB free_pcp:588kB local_pcp:12kB free_cma:0kB [ 52.388107] lowmem_reserve[]: 0 0 0 0 [ 52.391976] 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 [ 52.405649] Node 0 DMA32: 4*4kB (UME) 6*8kB (UME) 2*16kB (ME) 5*32kB (UME) 6*64kB (UME) 6*128kB (UME) 6*256kB (UME) 4*512kB (ME) 4*1024kB (UME) 3*2048kB (ME) 7*4096kB (M) = 43904kB [ 52.421961] Node 0 Normal: 302*4kB (UME) 593*8kB (UME) 331*16kB (UME) 199*32kB (UME) 102*64kB (UME) 44*128kB (UME) 22*256kB (UME) 6*512kB (ME) 0*1024kB 0*2048kB 0*4096kB = 38480kB [ 52.438907] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 52.447501] 257 total pagecache pages [ 52.451306] 0 pages in swap cache [ 52.454768] Swap cache stats: add 0, delete 0, find 0/0 [ 52.460125] Free swap = 0kB [ 52.463139] Total swap = 0kB [ 52.466155] 1965979 pages RAM [ 52.469256] 0 pages HighMem/MovableOnly [ 52.473222] 327756 pages reserved [ 52.476673] Unreclaimable slab info: [ 52.480382] Name Used Total [ 52.485923] hashtab_node 118KB 119KB [ 52.491288] ebitmap_node 382KB 385KB [ 52.496666] avtab_node 1012KB 1013KB [ 52.502032] TIPC 1KB 7KB [ 52.507397] SCTPv6 2KB 4KB [ 52.512759] DCCPv6 2KB 7KB [ 52.518122] DCCP 2KB 6KB [ 52.523489] fib6_nodes 0KB 4KB [ 52.528851] ip6_dst_cache 5KB 11KB [ 52.534213] RAWv6 9KB 19KB [ 52.539577] UDPv6 12KB 14KB [ 52.544937] TCPv6 2KB 5KB [ 52.550312] sd_ext_cdb 0KB 3KB [ 52.555684] scsi_sense_cache 148KB 148KB [ 52.561054] virtio_scsi_cmd 16KB 16KB [ 52.566415] sgpool-128 8KB 8KB [ 52.571780] sgpool-64 4KB 6KB [ 52.577140] sgpool-32 267KB 267KB [ 52.582513] sgpool-16 86KB 86KB [ 52.588578] sgpool-8 243KB 243KB [ 52.594353] cfq_io_cq 18KB 19KB [ 52.599913] cfq_queue 27KB 27KB [ 52.605446] mqueue_inode_cache 1KB 7KB [ 52.611126] nfs_commit_data 3KB 7KB [ 52.616863] nfs_write_data 34KB 37KB [ 52.622549] jbd2_inode 1KB 3KB [ 52.628120] ext4_system_zone 0KB 3KB [ 52.633679] bio-1 1KB 3KB [ 52.639323] rpc_buffers 17KB 19KB [ 52.644847] rpc_tasks 2KB 3KB [ 52.650600] UNIX 784KB 784KB [ 52.656139] tcp_bind_bucket 0KB 4KB [ 52.661700] ip_fib_trie 0KB 3KB [ 52.667297] ip_fib_alias 0KB 3KB [ 52.672845] ip_dst_cache 3KB 8KB [ 52.678375] RAW 5KB 7KB [ 52.684034] UDP 29KB 39KB [ 52.689556] TCP 7KB 7KB [ 52.695195] hugetlbfs_inode_cache 1KB 7KB [ 52.701146] eventpoll_pwq 10KB 11KB [ 52.706668] eventpoll_epi 18KB 23KB [ 52.712225] inotify_inode_mark 3KB 7KB [ 52.717846] request_queue 31KB 33KB [ 52.723378] blkdev_ioc 23KB 23KB [ 52.729067] bio-0 468KB 468KB [ 52.734869] biovec-(1<<(21-12)) 528KB 528KB [ 52.740845] biovec-64 417KB 417KB [ 52.746388] biovec-16 82KB 82KB [ 52.751949] bio_integrity_payload 0KB 4KB [ 52.758042] khugepaged_mm_slot 0KB 3KB [ 52.763784] uid_cache 0KB 3KB [ 52.769417] dmaengine-unmap-2 0KB 3KB [ 52.775007] audit_buffer 0KB 3KB [ 52.780620] skbuff_fclone_cache 129KB 131KB [ 52.786379] skbuff_head_cache 1699KB 1702KB [ 52.791938] configfs_dir_cache 0KB 4KB [ 52.797688] file_lock_cache 155KB 158KB [ 52.803280] file_lock_ctx 1KB 3KB [ 52.808923] fsnotify_mark_connector 2KB 3KB [ 52.814971] shmem_inode_cache 1041KB 1042KB [ 52.820492] task_delay_info 303KB 343KB [ 52.826031] sigqueue 351KB 354KB [ 52.831547] kernfs_node_cache 2156KB 2157KB [ 52.837188] mnt_cache 15KB 16KB [ 52.842715] filp 8520KB 8771KB [ 52.848348] names_cache 111732KB 111762KB [ 52.853895] avc_node 37KB 43KB [ 52.859420] selinux_file_security 431KB 453KB [ 52.865292] selinux_inode_security 1930KB 1936KB [ 52.871247] key_jar 3KB 7KB [ 52.876873] nsproxy 0KB 3KB [ 52.882384] vm_area_struct 18009KB 18017KB [ 52.887844] mm_struct 4315KB 4328KB [ 52.893295] fs_cache 404KB 440KB [ 52.898916] files_cache 1514KB 1518KB [ 52.904476] signal_cache 2417KB 2422KB [ 52.909999] sighand_cache 215KB 263KB [ 52.915540] task_struct 10326KB 10326KB [ 52.920895] cred_jar 2282KB 2288KB [ 52.926328] anon_vma_chain 7478KB 7485KB [ 52.931862] anon_vma 148KB 281KB [ 52.937480] pid 210KB 256KB [ 52.943157] Acpi-Operand 106KB 170KB [ 52.948803] Acpi-Namespace 19KB 23KB [ 52.954390] numa_policy 0KB 3KB [ 52.960032] debug_objects_cache 476KB 477KB [ 52.965858] trace_event_file 145KB 147KB [ 52.971459] ftrace_event_field 257KB 259KB [ 52.977178] pool_workqueue 22KB 24KB [ 52.982845] page->ptl 2973KB 2976KB [ 52.988461] kmalloc-262144 1032KB 1032KB [ 52.994071] kmalloc-131072 650KB 650KB [ 52.999812] kmalloc-65536 264KB 264KB [ 53.005520] kmalloc-32768 627KB 627KB [ 53.011117] kmalloc-16384 148KB 148KB [ 53.016642] kmalloc-8192 503KB 503KB [ 53.022332] kmalloc-4096 7777KB 7815KB [ 53.027913] kmalloc-2048 3130KB 3136KB [ 53.033430] kmalloc-1024 4386KB 4386KB [ 53.039057] kmalloc-512 2669KB 2906KB [ 53.044808] kmalloc-256 2021KB 2422KB [ 53.050346] kmalloc-128 395KB 523KB [ 53.056037] kmalloc-96 2128KB 2128KB [ 53.061568] kmalloc-64 2464KB 2464KB [ 53.067237] kmalloc-32 2401KB 2401KB [ 53.072924] kmalloc-192 904KB 904KB [ 53.078623] kmem_cache 100KB 101KB [ 53.084280] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 53.093261] [ 1774] 0 1774 5366 167 90112 0 -1000 udevd [ 53.101721] [ 3200] 0 3200 2493 574 57344 0 0 dhclient [ 53.110176] [ 3343] 0 3343 30682 190 118784 0 0 rsyslogd [ 53.118578] [ 3398] 0 3398 4725 50 86016 0 0 cron [ 53.126634] [ 3408] 0 3408 3736 45 69632 0 0 mcstransd [ 53.135124] [ 3444] 0 3444 12490 153 139264 0 -1000 sshd [ 53.143173] [ 3468] 0 3468 3694 39 77824 0 0 getty [ 53.151308] [ 3469] 0 3469 3694 41 77824 0 0 getty [ 53.159445] [ 3470] 0 3470 3694 39 73728 0 0 getty [ 53.167581] [ 3471] 0 3471 3694 39 81920 0 0 getty [ 53.175727] [ 3472] 0 3472 3694 40 73728 0 0 getty [ 53.183869] [ 3473] 0 3473 3694 41 73728 0 0 getty [ 53.192036] [ 3474] 0 3474 3649 41 81920 0 0 getty [ 53.200174] [ 3479] 0 3479 5681 454 86016 0 -1000 udevd [ 53.208314] [ 3480] 0 3480 5681 454 86016 0 -1000 udevd [ 53.216448] [ 3500] 0 3500 17821 197 184320 0 0 sshd [ 53.224498] [ 3502] 0 3502 280 1 32768 0 0 syzkaller146509 [ 53.233503] [ 3503] 0 3503 4375 523 36864 0 0 syzkaller146509 [ 53.242506] [ 3504] 0 3504 4375 523 36864 0 0 syzkaller146509 [ 53.251515] [ 3505] 0 3505 4375 523 36864 0 0 syzkaller146509 [ 53.260528] [ 3506] 0 3506 4375 523 36864 0 0 syzkaller146509 [ 53.269535] [ 3507] 0 3507 4375 523 36864 0 0 syzkaller146509 [ 53.278538] [ 3508] 0 3508 4375 523 36864 0 0 syzkaller146509 [ 53.287544] [ 3509] 0 3509 4375 523 36864 0 0 syzkaller146509 [ 53.296557] [ 3510] 0 3510 4375 523 36864 0 0 syzkaller146509 [ 53.305565] Out of memory: Kill process 3200 (dhclient) score 0 or sacrifice child [ 53.313338] Killed process 3200 (dhclient) total-vm:9972kB, anon-rss:2296kB, file-rss:0kB, shmem-rss:0kB [ 53.334059] syzkaller146509 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 53.348702] syzkaller146509 cpuset=/ mems_allowed=0 [ 53.353793] CPU: 1 PID: 3506 Comm: syzkaller146509 Not tainted 4.15.0-rc7+ #184 [ 53.361229] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.370573] Call Trace: [ 53.373154] dump_stack+0x194/0x257 [ 53.376778] ? arch_local_irq_restore+0x53/0x53 [ 53.381441] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 53.386623] dump_header+0x28c/0xe1e [ 53.390318] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 53.395496] ? pagefault_out_of_memory+0x152/0x152 [ 53.400415] ? check_noncircular+0x20/0x20 [ 53.404622] ? print_irqtrace_events+0x270/0x270 [ 53.409354] ? __lock_acquire+0x664/0x3e00 [ 53.413565] ? check_noncircular+0x20/0x20 [ 53.417775] ? find_held_lock+0x35/0x1d0 [ 53.421810] ? check_noncircular+0x20/0x20 [ 53.426016] ? task_will_free_mem+0x252/0xaa0 [ 53.430489] ? print_irqtrace_events+0x270/0x270 [ 53.435235] ? ___ratelimit+0x30d/0x630 [ 53.439179] ? lock_downgrade+0x980/0x980 [ 53.443298] ? lock_release+0xa40/0xa40 [ 53.447244] ? mark_held_locks+0xaf/0x100 [ 53.451372] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 53.456447] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 53.461432] ? trace_hardirqs_on+0xd/0x10 [ 53.465549] ? ___ratelimit+0x95/0x630 [ 53.469406] ? idr_get_free_cmn+0xfd0/0xfd0 [ 53.473696] ? check_noncircular+0x20/0x20 [ 53.477899] ? find_held_lock+0x138/0x1d0 [ 53.482036] oom_kill_process+0x8b5/0x14a0 [ 53.486256] ? has_ns_capability_noaudit+0x163/0x2a0 [ 53.491337] ? lock_downgrade+0x980/0x980 [ 53.495459] ? oom_evaluate_task+0x480/0x480 [ 53.499848] ? security_capable_noaudit+0x8b/0xc0 [ 53.504679] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 53.509773] ? has_capability+0x30/0x30 [ 53.513738] ? do_raw_spin_trylock+0x190/0x190 [ 53.518337] ? check_noncircular+0x20/0x20 [ 53.522573] ? has_capability_noaudit+0x24/0x30 [ 53.527231] ? oom_badness+0xd1/0x980 [ 53.531020] ? lock_release+0xa40/0xa40 [ 53.534993] ? do_try_to_free_pages+0xc53/0x1020 [ 53.539724] ? find_lock_task_mm+0x460/0x460 [ 53.544109] ? find_held_lock+0x35/0x1d0 [ 53.548158] ? out_of_memory+0xb3a/0x1220 [ 53.552278] ? lock_downgrade+0x980/0x980 [ 53.556399] ? lock_release+0xa40/0xa40 [ 53.560340] ? lock_acquire+0x1d5/0x580 [ 53.564297] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 53.569203] ? oom_evaluate_task+0x284/0x480 [ 53.573585] out_of_memory+0x86d/0x1220 [ 53.577537] ? oom_killer_disable+0x310/0x310 [ 53.582000] ? mutex_trylock+0x23a/0x2d0 [ 53.586045] ? __lock_is_held+0xb6/0x140 [ 53.590081] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 53.595512] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 53.600348] ? warn_alloc+0x2b0/0x2b0 [ 53.604126] ? lock_release+0xa40/0xa40 [ 53.608074] ? print_irqtrace_events+0x270/0x270 [ 53.612801] ? do_raw_spin_trylock+0x190/0x190 [ 53.617366] ? mutex_spin_on_owner+0x446/0xb50 [ 53.621935] ? __lock_acquire+0x664/0x3e00 [ 53.626144] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 53.632005] ? lock_release+0xa40/0xa40 [ 53.636000] ? __lock_is_held+0xb6/0x140 [ 53.640073] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 53.645967] ? __might_sleep+0x95/0x190 [ 53.649940] __alloc_pages_nodemask+0x9fb/0xd80 [ 53.654610] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 53.659614] ? pcpu_chunk_refresh_hint+0x425/0x570 [ 53.664523] ? print_irqtrace_events+0x270/0x270 [ 53.669265] ? __lock_is_held+0xb6/0x140 [ 53.673310] ? find_next_bit+0x27/0x30 [ 53.677172] pcpu_populate_chunk+0x1b3/0x880 [ 53.681570] pcpu_alloc+0x978/0x10e0 [ 53.685265] ? pcpu_free_area+0xa00/0xa00 [ 53.689390] ? vmap_page_range_noflush+0x523/0x720 [ 53.694307] ? retint_kernel+0x10/0x10 [ 53.698172] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 53.703171] ? retint_kernel+0x10/0x10 [ 53.707043] ? array_map_alloc+0x62b/0x830 [ 53.711251] __alloc_percpu_gfp+0x27/0x30 [ 53.715369] array_map_alloc+0x68a/0x830 [ 53.719406] SyS_bpf+0x7f8/0x4420 [ 53.722827] ? check_noncircular+0x20/0x20 [ 53.727050] ? bpf_prog_get+0x20/0x20 [ 53.730847] ? perf_event_fork+0x30/0x30 [ 53.734898] ? __lock_is_held+0xb6/0x140 [ 53.738930] ? check_noncircular+0x20/0x20 [ 53.743139] ? __handle_mm_fault+0x80e/0x3ce0 [ 53.747608] ? check_noncircular+0x20/0x20 [ 53.751812] ? __pmd_alloc+0x4e0/0x4e0 [ 53.755668] ? vma_link+0xe9/0x170 [ 53.759193] ? find_held_lock+0x35/0x1d0 [ 53.763256] ? handle_mm_fault+0x248/0x8d0 [ 53.767483] ? find_held_lock+0x35/0x1d0 [ 53.771546] ? __do_page_fault+0x5f7/0xc90 [ 53.775772] ? lock_downgrade+0x980/0x980 [ 53.779912] ? handle_mm_fault+0x410/0x8d0 [ 53.784116] ? down_read_trylock+0xdb/0x170 [ 53.788415] ? __do_page_fault+0x32d/0xc90 [ 53.792619] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 53.797176] ? vmacache_find+0x5f/0x280 [ 53.801119] ? vmacache_update+0xfe/0x130 [ 53.805245] ? up_read+0x1a/0x40 [ 53.808581] ? __do_page_fault+0x3d6/0xc90 [ 53.812790] ? mm_fault_error+0x2c0/0x2c0 [ 53.816917] ? do_page_fault+0xee/0x720 [ 53.820859] ? __do_page_fault+0xc90/0xc90 [ 53.825073] ? SyS_mmap_pgoff+0x243/0x5f0 [ 53.829204] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 53.833937] entry_SYSCALL_64_fastpath+0x23/0x9a [ 53.838660] RIP: 0033:0x440139 [ 53.841818] RSP: 002b:00007fffea9d2488 EFLAGS: 00000217 ORIG_RAX: 0000000000000141 [ 53.849491] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 0000000000440139 [ 53.856727] RDX: 000000000000002c RSI: 0000000020c47fec RDI: 0000000000000000 [ 53.863963] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 53.871207] R10: 00000000ffffffff R11: 0000000000000217 R12: 00000000004016a0 [ 53.878455] R13: 0000000000401730 R14: 0000000000000000 R15: 0000000000000000 [ 53.885821] Mem-Info: [ 53.888999] active_anon:6099 inactive_anon:62 isolated_anon:0 [ 53.888999] active_file:93 inactive_file:91 isolated_file:0 [ 53.888999] unevictable:0 dirty:0 writeback:0 unstable:0 [ 53.888999] slab_reclaimable:7251 slab_unreclaimable:83438 [ 53.888999] mapped:120 shmem:68 pagetables:311 bounce:0 [ 53.888999] free:24178 free_pcp:58 free_cma:0 [ 53.921352] Node 0 active_anon:24396kB inactive_anon:248kB active_file:252kB inactive_file:212kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:480kB dirty:0kB writeback:0kB shmem:272kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 16384kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 53.948522] 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 [ 53.974643] lowmem_reserve[]: 0 2870 6381 6381 [ 53.979222] Node 0 DMA32 free:43904kB min:30332kB low:37912kB high:45492kB active_anon:0kB inactive_anon:0kB active_file:4kB inactive_file:8kB unevictable:0kB writepending:0kB present:3129332kB managed:2942352kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 54.006387] lowmem_reserve[]: 0 0 3510 3510 [ 54.010716] Node 0 Normal free:36876kB min:37084kB low:46352kB high:55620kB active_anon:24396kB inactive_anon:248kB active_file:84kB inactive_file:192kB unevictable:0kB writepending:0kB present:4718592kB managed:3594632kB mlocked:0kB kernel_stack:3040kB pagetables:1244kB bounce:0kB free_pcp:604kB local_pcp:0kB free_cma:0kB [ 54.039853] lowmem_reserve[]: 0 0 0 0 [ 54.043668] 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 [ 54.057263] Node 0 DMA32: 4*4kB (UME) 6*8kB (UME) 2*16kB (ME) 5*32kB (UME) 6*64kB (UME) 6*128kB (UME) 6*256kB (UME) 4*512kB (ME) 4*1024kB (UME) 3*2048kB (ME) 7*4096kB (M) = 43904kB [ 54.073552] Node 0 Normal: 319*4kB (UM) 394*8kB (UME) 290*16kB (ME) 185*32kB (UME) 112*64kB (UME) 49*128kB (UM) 19*256kB (ME) 5*512kB (M) 1*1024kB (E) 0*2048kB 0*4096kB = 36876kB [ 54.089709] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 54.098303] 173 total pagecache pages [ 54.102103] 0 pages in swap cache [ 54.105547] Swap cache stats: add 0, delete 0, find 0/0 [ 54.110902] Free swap = 0kB [ 54.113920] Total swap = 0kB [ 54.116944] 1965979 pages RAM [ 54.120063] 0 pages HighMem/MovableOnly [ 54.124043] 327756 pages reserved [ 54.127508] Unreclaimable slab info: [ 54.131232] Name Used Total [ 54.136785] hashtab_node 118KB 119KB [ 54.142168] ebitmap_node 382KB 385KB [ 54.147545] avtab_node 1012KB 1013KB [ 54.152950] TIPC 1KB 7KB [ 54.158328] SCTPv6 2KB 4KB [ 54.163755] DCCPv6 2KB 7KB [ 54.169541] DCCP 2KB 6KB [ 54.174947] fib6_nodes 0KB 4KB [ 54.180328] ip6_dst_cache 5KB 11KB [ 54.185709] RAWv6 9KB 19KB [ 54.191092] UDPv6 12KB 14KB [ 54.196467] TCPv6 2KB 5KB [ 54.201853] sd_ext_cdb 0KB 3KB [ 54.207230] scsi_sense_cache 216KB 216KB [ 54.212645] virtio_scsi_cmd 16KB 16KB [ 54.218040] sgpool-128 8KB 8KB [ 54.223427] sgpool-64 4KB 6KB [ 54.228791] sgpool-32 425KB 425KB [ 54.234157] sgpool-16 150KB 150KB [ 54.239522] sgpool-8 352KB 352KB [ 54.244896] cfq_io_cq 18KB 19KB [ 54.250256] cfq_queue 27KB 27KB [ 54.255620] mqueue_inode_cache 1KB 7KB [ 54.261070] nfs_commit_data 3KB 7KB [ 54.266433] nfs_write_data 34KB 37KB [ 54.271792] jbd2_inode 1KB 3KB [ 54.277157] ext4_system_zone 0KB 3KB [ 54.282517] bio-1 1KB 3KB [ 54.287909] rpc_buffers 17KB 19KB [ 54.293285] rpc_tasks 2KB 3KB [ 54.299104] UNIX 784KB 784KB [ 54.304504] tcp_bind_bucket 0KB 4KB [ 54.309867] ip_fib_trie 0KB 3KB [ 54.315229] ip_fib_alias 0KB 3KB [ 54.320939] ip_dst_cache 3KB 8KB [ 54.326303] RAW 5KB 7KB [ 54.331667] UDP 29KB 39KB [ 54.337051] TCP 7KB 7KB [ 54.342419] hugetlbfs_inode_cache 1KB 7KB [ 54.348134] eventpoll_pwq 10KB 11KB [ 54.353494] eventpoll_epi 18KB 23KB [ 54.358858] inotify_inode_mark 3KB 7KB [ 54.364315] request_queue 31KB 33KB [ 54.369684] blkdev_ioc 23KB 23KB [ 54.375041] bio-0 633KB 633KB [ 54.380412] biovec-(1<<(21-12)) 635KB 635KB [ 54.385962] biovec-64 677KB 677KB [ 54.391342] biovec-16 146KB 146KB [ 54.396700] bio_integrity_payload 0KB 4KB [ 54.402410] khugepaged_mm_slot 0KB 3KB [ 54.407860] uid_cache 0KB 3KB [ 54.413244] dmaengine-unmap-2 0KB 3KB [ 54.418628] audit_buffer 0KB 3KB [ 54.423994] skbuff_fclone_cache 129KB 131KB [ 54.429533] skbuff_head_cache 1699KB 1702KB [ 54.434909] configfs_dir_cache 0KB 4KB [ 54.440358] file_lock_cache 155KB 158KB [ 54.445721] file_lock_ctx 1KB 3KB [ 54.451078] fsnotify_mark_connector 2KB 3KB [ 54.456973] shmem_inode_cache 1041KB 1042KB [ 54.462334] task_delay_info 303KB 343KB [ 54.467701] sigqueue 354KB 354KB [ 54.473070] kernfs_node_cache 2156KB 2157KB [ 54.478445] mnt_cache 15KB 16KB [ 54.483805] filp 8402KB 8666KB [ 54.489170] names_cache 110508KB 110546KB [ 54.494540] avc_node 37KB 43KB [ 54.499904] selinux_file_security 431KB 453KB [ 54.505611] selinux_inode_security 1930KB 1936KB [ 54.511422] key_jar 3KB 7KB [ 54.516792] nsproxy 0KB 3KB [ 54.522156] vm_area_struct 18009KB 18017KB [ 54.527517] mm_struct 4315KB 4328KB [ 54.532894] fs_cache 404KB 440KB [ 54.538254] files_cache 1514KB 1518KB [ 54.543616] signal_cache 2417KB 2422KB [ 54.548980] sighand_cache 215KB 263KB [ 54.554349] task_struct 10326KB 10326KB [ 54.559715] cred_jar 2282KB 2288KB [ 54.565080] anon_vma_chain 7478KB 7485KB [ 54.570444] anon_vma 148KB 281KB [ 54.575810] pid 210KB 256KB [ 54.581169] Acpi-Operand 106KB 170KB [ 54.586539] Acpi-Namespace 19KB 23KB [ 54.591893] numa_policy 0KB 3KB [ 54.597254] debug_objects_cache 476KB 477KB [ 54.602792] trace_event_file 145KB 147KB [ 54.608154] ftrace_event_field 257KB 259KB [ 54.613602] pool_workqueue 22KB 24KB [ 54.618976] page->ptl 2973KB 2976KB [ 54.624350] kmalloc-262144 1032KB 1032KB [ 54.629718] kmalloc-131072 650KB 650KB [ 54.635075] kmalloc-65536 264KB 264KB [ 54.640436] kmalloc-32768 627KB 627KB [ 54.645796] kmalloc-16384 148KB 148KB [ 54.651158] kmalloc-8192 503KB 503KB [ 54.656535] kmalloc-4096 7182KB 7220KB [ 54.661923] kmalloc-2048 3130KB 3136KB [ 54.667281] kmalloc-1024 4882KB 4882KB [ 54.672644] kmalloc-512 2669KB 2906KB [ 54.678004] kmalloc-256 1988KB 2396KB [ 54.683397] kmalloc-128 395KB 523KB [ 54.688760] kmalloc-96 2168KB 2168KB [ 54.694113] kmalloc-64 2464KB 2464KB [ 54.699478] kmalloc-32 2401KB 2401KB [ 54.704842] kmalloc-192 904KB 904KB [ 54.710202] kmem_cache 100KB 101KB [ 54.715560] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 54.724161] [ 1774] 0 1774 5366 167 90112 0 -1000 udevd [ 54.732581] [ 3343] 0 3343 30682 222 118784 0 0 rsyslogd [ 54.741070] [ 3398] 0 3398 4725 50 86016 0 0 cron [ 54.749126] [ 3408] 0 3408 3736 45 69632 0 0 mcstransd [ 54.757623] [ 3444] 0 3444 12490 153 139264 0 -1000 sshd [ 54.765689] [ 3468] 0 3468 3694 39 77824 0 0 getty [ 54.773837] [ 3469] 0 3469 3694 41 77824 0 0 getty [ 54.781974] [ 3470] 0 3470 3694 39 73728 0 0 getty [ 54.790110] [ 3471] 0 3471 3694 39 81920 0 0 getty [ 54.798251] [ 3472] 0 3472 3694 40 73728 0 0 getty [ 54.806389] [ 3473] 0 3473 3694 41 73728 0 0 getty [ 54.814531] [ 3474] 0 3474 3649 41 81920 0 0 getty [ 54.822683] [ 3479] 0 3479 5681 454 86016 0 -1000 udevd [ 54.830820] [ 3480] 0 3480 5681 454 86016 0 -1000 udevd [ 54.838964] [ 3500] 0 3500 17821 197 184320 0 0 sshd [ 54.847039] [ 3502] 0 3502 280 1 32768 0 0 syzkaller146509 [ 54.856042] [ 3503] 0 3503 4375 523 36864 0 0 syzkaller146509 [ 54.865052] [ 3504] 0 3504 4375 523 36864 0 0 syzkaller146509 [ 54.874059] [ 3505] 0 3505 4375 523 36864 0 0 syzkaller146509 [ 54.883064] [ 3506] 0 3506 4375 523 36864 0 0 syzkaller146509 [ 54.892081] [ 3507] 0 3507 4375 523 36864 0 0 syzkaller146509 [ 54.901091] [ 3508] 0 3508 4375 523 36864 0 0 syzkaller146509 [ 54.910096] [ 3509] 0 3509 4375 523 36864 0 0 syzkaller146509 [ 54.919101] [ 3510] 0 3510 4375 523 36864 0 0 syzkaller146509 [ 54.928101] Out of memory: Kill process 3503 (syzkaller146509) score 0 or sacrifice child [ 54.936468] Killed process 3503 (syzkaller146509) total-vm:17500kB, anon-rss:2092kB, file-rss:0kB, shmem-rss:0kB [ 54.948797] oom_reaper: reaped process 3503 (syzkaller146509), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 54.967062] syzkaller146509 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 54.980195] syzkaller146509 cpuset=/ mems_allowed=0 [ 54.985300] CPU: 0 PID: 3509 Comm: syzkaller146509 Not tainted 4.15.0-rc7+ #184 [ 54.992721] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.002043] Call Trace: [ 55.004601] dump_stack+0x194/0x257 [ 55.008200] ? arch_local_irq_restore+0x53/0x53 [ 55.012839] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 55.018004] dump_header+0x28c/0xe1e [ 55.021714] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 55.026882] ? pagefault_out_of_memory+0x152/0x152 [ 55.031777] ? check_noncircular+0x20/0x20 [ 55.035981] ? print_irqtrace_events+0x270/0x270 [ 55.040709] ? __lock_acquire+0x664/0x3e00 [ 55.044913] ? check_noncircular+0x20/0x20 [ 55.049122] ? find_held_lock+0x35/0x1d0 [ 55.053173] ? check_noncircular+0x20/0x20 [ 55.057385] ? task_will_free_mem+0x252/0xaa0 [ 55.061862] ? print_irqtrace_events+0x270/0x270 [ 55.066595] ? ___ratelimit+0x30d/0x630 [ 55.070547] ? lock_downgrade+0x980/0x980 [ 55.074675] ? lock_release+0xa40/0xa40 [ 55.078623] ? mark_held_locks+0xaf/0x100 [ 55.082740] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 55.087812] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 55.092797] ? trace_hardirqs_on+0xd/0x10 [ 55.096914] ? ___ratelimit+0x95/0x630 [ 55.100770] ? idr_get_free_cmn+0xfd0/0xfd0 [ 55.105059] ? check_noncircular+0x20/0x20 [ 55.109260] ? find_held_lock+0x138/0x1d0 [ 55.113381] oom_kill_process+0x8b5/0x14a0 [ 55.117589] ? has_ns_capability_noaudit+0x163/0x2a0 [ 55.122661] ? lock_downgrade+0x980/0x980 [ 55.126780] ? oom_evaluate_task+0x480/0x480 [ 55.131167] ? security_capable_noaudit+0x8b/0xc0 [ 55.135982] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 55.141062] ? has_capability+0x30/0x30 [ 55.145006] ? do_raw_spin_trylock+0x190/0x190 [ 55.149564] ? check_noncircular+0x20/0x20 [ 55.153783] ? has_capability_noaudit+0x24/0x30 [ 55.158418] ? oom_badness+0xd1/0x980 [ 55.162186] ? lock_release+0xa40/0xa40 [ 55.166128] ? do_try_to_free_pages+0xc53/0x1020 [ 55.170852] ? find_lock_task_mm+0x460/0x460 [ 55.175231] ? find_held_lock+0x35/0x1d0 [ 55.179266] ? out_of_memory+0xb3a/0x1220 [ 55.183380] ? lock_downgrade+0x980/0x980 [ 55.187498] ? lock_release+0xa40/0xa40 [ 55.191437] ? lock_acquire+0x1d5/0x580 [ 55.195383] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 55.200286] ? oom_evaluate_task+0x284/0x480 [ 55.204665] out_of_memory+0x86d/0x1220 [ 55.208615] ? oom_killer_disable+0x310/0x310 [ 55.213079] ? mutex_trylock+0x23a/0x2d0 [ 55.217108] ? __lock_is_held+0xb6/0x140 [ 55.221139] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 55.226567] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 55.231401] ? warn_alloc+0x2b0/0x2b0 [ 55.235183] ? lock_release+0xa40/0xa40 [ 55.239129] ? print_irqtrace_events+0x270/0x270 [ 55.243856] ? find_held_lock+0x35/0x1d0 [ 55.247892] ? __mutex_lock+0x5bd/0x1a80 [ 55.251924] ? __lock_acquire+0x664/0x3e00 [ 55.256127] ? lock_release+0xa40/0xa40 [ 55.260069] ? memset+0x31/0x40 [ 55.263317] ? do_raw_spin_trylock+0x190/0x190 [ 55.267884] ? __lock_is_held+0xb6/0x140 [ 55.271931] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 55.277782] ? find_held_lock+0x35/0x1d0 [ 55.281816] ? __might_sleep+0x95/0x190 [ 55.285761] __alloc_pages_nodemask+0x9fb/0xd80 [ 55.290401] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 55.295391] ? pcpu_chunk_refresh_hint+0x425/0x570 [ 55.300299] ? print_irqtrace_events+0x270/0x270 [ 55.305035] ? __lock_is_held+0xb6/0x140 [ 55.309075] ? find_next_bit+0x27/0x30 [ 55.312934] pcpu_populate_chunk+0x1b3/0x880 [ 55.317321] pcpu_alloc+0x978/0x10e0 [ 55.321032] ? pcpu_free_area+0xa00/0xa00 [ 55.325153] ? vmap_page_range_noflush+0x523/0x720 [ 55.330065] ? map_vm_area+0x9e/0xd0 [ 55.333752] ? __vmalloc_node_range+0x37a/0x650 [ 55.338397] ? array_map_alloc+0x2ef/0x830 [ 55.342611] ? __vmalloc_node_flags_caller+0x50/0x60 [ 55.347686] __alloc_percpu_gfp+0x27/0x30 [ 55.351804] array_map_alloc+0x68a/0x830 [ 55.355848] SyS_bpf+0x7f8/0x4420 [ 55.359270] ? check_noncircular+0x20/0x20 [ 55.363477] ? bpf_prog_get+0x20/0x20 [ 55.367249] ? perf_event_fork+0x30/0x30 [ 55.371284] ? __lock_is_held+0xb6/0x140 [ 55.375324] ? check_noncircular+0x20/0x20 [ 55.379532] ? __handle_mm_fault+0x80e/0x3ce0 [ 55.384010] ? check_noncircular+0x20/0x20 [ 55.388220] ? __pmd_alloc+0x4e0/0x4e0 [ 55.392077] ? vma_link+0xe9/0x170 [ 55.395590] ? find_held_lock+0x35/0x1d0 [ 55.399627] ? handle_mm_fault+0x248/0x8d0 [ 55.403833] ? find_held_lock+0x35/0x1d0 [ 55.407877] ? __do_page_fault+0x5f7/0xc90 [ 55.412079] ? lock_downgrade+0x980/0x980 [ 55.416204] ? handle_mm_fault+0x410/0x8d0 [ 55.420405] ? down_read_trylock+0xdb/0x170 [ 55.424693] ? __do_page_fault+0x32d/0xc90 [ 55.428908] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 55.433458] ? vmacache_find+0x5f/0x280 [ 55.437398] ? vmacache_update+0xfe/0x130 [ 55.441520] ? up_read+0x1a/0x40 [ 55.444865] ? __do_page_fault+0x3d6/0xc90 [ 55.449073] ? mm_fault_error+0x2c0/0x2c0 [ 55.453201] ? do_page_fault+0xee/0x720 [ 55.457146] ? __do_page_fault+0xc90/0xc90 [ 55.461356] ? SyS_mmap_pgoff+0x243/0x5f0 [ 55.465487] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 55.470228] entry_SYSCALL_64_fastpath+0x23/0x9a [ 55.474952] RIP: 0033:0x440139 [ 55.478111] RSP: 002b:00007fffea9d2488 EFLAGS: 00000217 ORIG_RAX: 0000000000000141 [ 55.485786] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 0000000000440139 [ 55.493026] RDX: 000000000000002c RSI: 0000000020c47fec RDI: 0000000000000000 [ 55.500264] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 55.508138] R10: 00000000ffffffff R11: 0000000000000217 R12: 00000000004016a0 [ 55.515384] R13: 0000000000401730 R14: 0000000000000000 R15: 0000000000000000 [ 55.522755] Mem-Info: [ 55.525244] active_anon:5599 inactive_anon:62 isolated_anon:0 [ 55.525244] active_file:28 inactive_file:22 isolated_file:0 [ 55.525244] unevictable:0 dirty:9 writeback:0 unstable:0 [ 55.525244] slab_reclaimable:7265 slab_unreclaimable:82715 [ 55.525244] mapped:15 shmem:68 pagetables:310 bounce:0 [ 55.525244] free:22920 free_pcp:0 free_cma:0 [ 55.557298] Node 0 active_anon:22396kB inactive_anon:248kB active_file:100kB inactive_file:100kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:60kB dirty:36kB writeback:0kB shmem:272kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 14336kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 55.584562] 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 [ 55.610712] lowmem_reserve[]: 0 2870 6381 6381 [ 55.615320] Node 0 DMA32 free:43904kB min:30332kB low:37912kB high:45492kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:12kB unevictable:0kB writepending:0kB present:3129332kB managed:2942352kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 55.642577] lowmem_reserve[]: 0 0 3510 3510 [ 55.646947] Node 0 Normal free:31868kB min:37084kB low:46352kB high:55620kB active_anon:22396kB inactive_anon:248kB active_file:172kB inactive_file:408kB unevictable:0kB writepending:36kB present:4718592kB managed:3594632kB mlocked:0kB kernel_stack:3040kB pagetables:1240kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 55.675681] lowmem_reserve[]: 0 0 0 0 [ 55.679503] 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 [ 55.693146] Node 0 DMA32: 4*4kB (UME) 6*8kB (UME) 2*16kB (ME) 5*32kB (UME) 6*64kB (UME) 6*128kB (UME) 6*256kB (UME) 4*512kB (ME) 4*1024kB (UME) 3*2048kB (ME) 7*4096kB (M) = 43904kB [ 55.709510] Node 0 Normal: 433*4kB (UME) 367*8kB (UME) 265*16kB (UM) 167*32kB (UM) 102*64kB (UM) 43*128kB (M) 17*256kB (M) 3*512kB (M) 0*1024kB 0*2048kB 0*4096kB = 32172kB [ 55.725153] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 55.733737] 102 total pagecache pages [ 55.737534] 0 pages in swap cache [ 55.740978] Swap cache stats: add 0, delete 0, find 0/0 [ 55.746344] Free swap = 0kB [ 55.749349] Total swap = 0kB [ 55.752354] 1965979 pages RAM [ 55.755444] 0 pages HighMem/MovableOnly [ 55.759406] 327756 pages reserved [ 55.762846] Unreclaimable slab info: [ 55.766546] Name Used Total [ 55.772074] hashtab_node 118KB 119KB [ 55.777432] ebitmap_node 382KB 385KB [ 55.782787] avtab_node 1012KB 1013KB [ 55.788157] TIPC 1KB 7KB [ 55.793518] SCTPv6 2KB 4KB [ 55.798876] DCCPv6 2KB 7KB [ 55.804239] DCCP 2KB 6KB [ 55.809607] fib6_nodes 0KB 4KB [ 55.814968] ip6_dst_cache 5KB 11KB [ 55.820334] RAWv6 9KB 19KB [ 55.825692] UDPv6 12KB 14KB [ 55.831136] TCPv6 2KB 5KB [ 55.836504] sd_ext_cdb 0KB 3KB [ 55.841861] scsi_sense_cache 224KB 224KB [ 55.847214] virtio_scsi_cmd 16KB 16KB [ 55.852572] sgpool-128 8KB 8KB [ 55.857926] sgpool-64 4KB 6KB [ 55.863281] sgpool-32 441KB 441KB [ 55.868636] sgpool-16 153KB 153KB [ 55.873989] sgpool-8 352KB 352KB [ 55.879363] cfq_io_cq 18KB 19KB [ 55.884721] cfq_queue 25KB 27KB [ 55.890082] mqueue_inode_cache 1KB 7KB [ 55.895526] nfs_commit_data 3KB 7KB [ 55.900880] nfs_write_data 34KB 37KB [ 55.906250] jbd2_inode 1KB 3KB [ 55.911608] ext4_system_zone 0KB 3KB [ 55.916968] bio-1 1KB 3KB [ 55.922328] rpc_buffers 17KB 19KB [ 55.927685] rpc_tasks 2KB 3KB [ 55.933051] UNIX 784KB 784KB [ 55.938428] tcp_bind_bucket 0KB 4KB [ 55.943811] ip_fib_trie 0KB 3KB [ 55.949174] ip_fib_alias 0KB 3KB [ 55.954548] ip_dst_cache 3KB 8KB [ 55.959923] RAW 5KB 7KB [ 55.965287] UDP 29KB 39KB [ 55.970660] TCP 7KB 7KB [ 55.976034] hugetlbfs_inode_cache 1KB 7KB [ 55.981758] eventpoll_pwq 10KB 11KB [ 55.987137] eventpoll_epi 18KB 23KB [ 55.992509] inotify_inode_mark 3KB 7KB [ 55.997970] request_queue 31KB 33KB [ 56.003331] blkdev_ioc 23KB 23KB [ 56.008697] bio-0 641KB 641KB [ 56.014072] biovec-(1<<(21-12)) 635KB 635KB [ 56.019623] biovec-64 693KB 693KB [ 56.024985] biovec-16 146KB 146KB [ 56.030358] bio_integrity_payload 0KB 4KB [ 56.036072] khugepaged_mm_slot 0KB 3KB [ 56.041532] uid_cache 0KB 3KB [ 56.046907] dmaengine-unmap-2 0KB 3KB [ 56.052281] audit_buffer 0KB 3KB [ 56.057651] skbuff_fclone_cache 129KB 131KB [ 56.063203] skbuff_head_cache 1699KB 1702KB [ 56.068595] configfs_dir_cache 0KB 4KB [ 56.074061] file_lock_cache 155KB 158KB [ 56.079435] file_lock_ctx 1KB 3KB [ 56.084796] fsnotify_mark_connector 2KB 3KB [ 56.090692] shmem_inode_cache 1041KB 1042KB [ 56.096057] task_delay_info 302KB 343KB [ 56.101430] sigqueue 352KB 354KB [ 56.106804] kernfs_node_cache 2156KB 2157KB [ 56.112168] mnt_cache 15KB 16KB [ 56.117536] filp 8321KB 8587KB [ 56.122911] names_cache 109888KB 109926KB [ 56.128275] avc_node 37KB 43KB [ 56.133643] selinux_file_security 426KB 453KB [ 56.139369] selinux_inode_security 1930KB 1936KB [ 56.145183] key_jar 3KB 7KB [ 56.150566] nsproxy 0KB 3KB [ 56.155948] vm_area_struct 18006KB 18017KB [ 56.161310] mm_struct 4312KB 4328KB [ 56.166684] fs_cache 403KB 440KB [ 56.172083] files_cache 1513KB 1518KB [ 56.177464] signal_cache 2417KB 2422KB [ 56.182832] sighand_cache 212KB 263KB [ 56.188215] task_struct 10320KB 10326KB [ 56.193596] cred_jar 2280KB 2288KB [ 56.198968] anon_vma_chain 7478KB 7485KB [ 56.204383] anon_vma 142KB 281KB [ 56.209765] pid 210KB 256KB [ 56.215136] Acpi-Operand 106KB 170KB [ 56.220511] Acpi-Namespace 19KB 23KB [ 56.225904] numa_policy 0KB 3KB [ 56.231267] debug_objects_cache 475KB 477KB [ 56.236809] trace_event_file 145KB 147KB [ 56.242186] ftrace_event_field 257KB 259KB [ 56.247649] pool_workqueue 22KB 24KB [ 56.253033] page->ptl 2971KB 2976KB [ 56.258431] kmalloc-262144 1032KB 1032KB [ 56.263793] kmalloc-131072 650KB 650KB [ 56.269164] kmalloc-65536 264KB 264KB [ 56.274525] kmalloc-32768 627KB 627KB [ 56.279894] kmalloc-16384 148KB 148KB [ 56.285269] kmalloc-8192 503KB 503KB [ 56.290644] kmalloc-4096 7165KB 7203KB [ 56.296030] kmalloc-2048 3130KB 3136KB [ 56.301407] kmalloc-1024 4914KB 4914KB [ 56.306782] kmalloc-512 2667KB 2906KB [ 56.312152] kmalloc-256 1981KB 2385KB [ 56.317522] kmalloc-128 394KB 523KB [ 56.322898] kmalloc-96 2172KB 2172KB [ 56.328276] kmalloc-64 2468KB 2468KB [ 56.333654] kmalloc-32 2401KB 2401KB [ 56.339036] kmalloc-192 908KB 908KB [ 56.344414] kmem_cache 100KB 101KB [ 56.349774] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 56.358389] [ 1774] 0 1774 5366 167 90112 0 -1000 udevd [ 56.366560] [ 3343] 0 3343 30682 222 118784 0 0 rsyslogd [ 56.375077] [ 3398] 0 3398 4725 50 86016 0 0 cron [ 56.383154] [ 3408] 0 3408 3736 45 69632 0 0 mcstransd [ 56.391679] [ 3444] 0 3444 12490 153 139264 0 -1000 sshd [ 56.399762] [ 3468] 0 3468 3694 39 77824 0 0 getty [ 56.407937] [ 3469] 0 3469 3694 41 77824 0 0 getty [ 56.416102] [ 3470] 0 3470 3694 39 73728 0 0 getty [ 56.424257] [ 3471] 0 3471 3694 39 81920 0 0 getty [ 56.432401] [ 3472] 0 3472 3694 40 73728 0 0 getty [ 56.440559] [ 3473] 0 3473 3694 41 73728 0 0 getty [ 56.448709] [ 3474] 0 3474 3649 41 81920 0 0 getty [ 56.456863] [ 3479] 0 3479 5681 454 86016 0 -1000 udevd [ 56.465038] [ 3480] 0 3480 5681 454 86016 0 -1000 udevd [ 56.473191] [ 3500] 0 3500 17821 197 184320 0 0 sshd [ 56.481252] [ 3502] 0 3502 280 1 32768 0 0 syzkaller146509 [ 56.490269] [ 3503] 0 3503 4375 0 32768 0 0 syzkaller146509 [ 56.499296] [ 3504] 0 3504 4375 523 36864 0 0 syzkaller146509 [ 56.508310] [ 3505] 0 3505 4375 523 36864 0 0 syzkaller146509 [ 56.517330] [ 3506] 0 3506 4375 523 36864 0 0 syzkaller146509 [ 56.526352] [ 3507] 0 3507 4375 523 36864 0 0 syzkaller146509 [ 56.535391] [ 3508] 0 3508 4375 523 36864 0 0 syzkaller146509 [ 56.544409] [ 3509] 0 3509 4375 523 36864 0 0 syzkaller146509 [ 56.553433] [ 3510] 0 3510 4375 523 36864 0 0 syzkaller146509 [ 56.562444] Out of memory: Kill process 3504 (syzkaller146509) score 0 or sacrifice child [ 56.570783] Killed process 3504 (syzkaller146509) total-vm:17500kB, anon-rss:2092kB, file-rss:0kB, shmem-rss:0kB [ 56.584673] oom_reaper: reaped process 3504 (syzkaller146509), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 56.596130] rsyslogd invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=0 [ 56.607653] rsyslogd cpuset=/ mems_allowed=0 [ 56.612250] CPU: 0 PID: 3347 Comm: rsyslogd Not tainted 4.15.0-rc7+ #184 [ 56.619069] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.628408] Call Trace: [ 56.630977] dump_stack+0x194/0x257 [ 56.634593] ? arch_local_irq_restore+0x53/0x53 [ 56.639251] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 56.644439] dump_header+0x28c/0xe1e [ 56.648151] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 56.653336] ? pagefault_out_of_memory+0x152/0x152 [ 56.658252] ? check_noncircular+0x20/0x20 [ 56.662478] ? print_irqtrace_events+0x270/0x270 [ 56.667229] ? __lock_acquire+0x664/0x3e00 [ 56.671457] ? check_noncircular+0x20/0x20 [ 56.675689] ? find_held_lock+0x35/0x1d0 [ 56.679748] ? check_noncircular+0x20/0x20 [ 56.683962] ? task_will_free_mem+0x252/0xaa0 [ 56.688446] ? print_irqtrace_events+0x270/0x270 [ 56.693206] ? ___ratelimit+0x30d/0x630 [ 56.697169] ? lock_downgrade+0x980/0x980 [ 56.701312] ? lock_release+0xa40/0xa40 [ 56.705278] ? mark_held_locks+0xaf/0x100 [ 56.709414] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 56.714512] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 56.719518] ? trace_hardirqs_on+0xd/0x10 [ 56.723660] ? ___ratelimit+0x95/0x630 [ 56.727536] ? idr_get_free_cmn+0xfd0/0xfd0 [ 56.731846] ? check_noncircular+0x20/0x20 [ 56.736060] ? find_held_lock+0x138/0x1d0 [ 56.740209] oom_kill_process+0x8b5/0x14a0 [ 56.744437] ? has_ns_capability_noaudit+0x163/0x2a0 [ 56.749535] ? lock_downgrade+0x980/0x980 [ 56.753676] ? oom_evaluate_task+0x480/0x480 [ 56.758088] ? security_capable_noaudit+0x8b/0xc0 [ 56.762928] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 56.768016] ? has_capability+0x30/0x30 [ 56.771976] ? do_raw_spin_trylock+0x190/0x190 [ 56.776557] ? check_noncircular+0x20/0x20 [ 56.780779] ? has_capability_noaudit+0x24/0x30 [ 56.785432] ? oom_badness+0xd1/0x980 [ 56.789214] ? lock_release+0xa40/0xa40 [ 56.793167] ? do_try_to_free_pages+0xc53/0x1020 [ 56.797905] ? find_lock_task_mm+0x460/0x460 [ 56.802301] ? find_held_lock+0x35/0x1d0 [ 56.806358] ? out_of_memory+0xb3a/0x1220 [ 56.810493] ? lock_downgrade+0x980/0x980 [ 56.814623] ? lock_release+0xa40/0xa40 [ 56.818574] ? lock_acquire+0x1d5/0x580 [ 56.822538] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 56.827472] ? oom_evaluate_task+0x284/0x480 [ 56.831867] out_of_memory+0x86d/0x1220 [ 56.835836] ? oom_killer_disable+0x310/0x310 [ 56.840317] ? mutex_trylock+0x23a/0x2d0 [ 56.844370] ? __lock_is_held+0xb6/0x140 [ 56.848420] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 56.853864] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 56.858704] ? trace_hardirqs_on+0xd/0x10 [ 56.862861] ? warn_alloc+0x2b0/0x2b0 [ 56.866643] ? lock_downgrade+0x980/0x980 [ 56.870784] ? __lock_is_held+0xb6/0x140 [ 56.874831] ? find_get_entry+0x53c/0x9e0 [ 56.878987] ? __lock_acquire+0x664/0x3e00 [ 56.883228] ? __lock_is_held+0xb6/0x140 [ 56.887302] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 56.893193] ? __might_sleep+0x95/0x190 [ 56.897165] __alloc_pages_nodemask+0x9fb/0xd80 [ 56.901832] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 56.906840] ? add_to_page_cache_lru+0x510/0x510 [ 56.911595] ? check_noncircular+0x20/0x20 [ 56.915818] ? check_noncircular+0x20/0x20 [ 56.920052] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 56.924807] alloc_pages_current+0xb6/0x1e0 [ 56.929119] __page_cache_alloc+0x334/0x500 [ 56.933430] ? rcu_read_lock_held+0xa9/0xc0 [ 56.937737] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 56.945098] filemap_fault+0xefc/0x1c20 [ 56.949061] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 56.954254] ? __lock_page_or_retry+0x4f0/0x4f0 [ 56.958910] ? filemap_map_pages+0x942/0x15d0 [ 56.963409] ? find_get_entries_tag+0xeb0/0xeb0 [ 56.968068] ? lock_downgrade+0x980/0x980 [ 56.972209] ? check_noncircular+0x20/0x20 [ 56.976431] ? find_held_lock+0x35/0x1d0 [ 56.980479] ? print_irqtrace_events+0x270/0x270 [ 56.985219] ? print_irqtrace_events+0x270/0x270 [ 56.989958] ? is_bpf_text_address+0x7b/0x120 [ 56.994455] ? lock_acquire+0x1d5/0x580 [ 56.998413] ? lock_acquire+0x1d5/0x580 [ 57.002376] ? ext4_filemap_fault+0x7a/0xad [ 57.006689] ? __lock_acquire+0x664/0x3e00 [ 57.010905] ? lock_release+0xa40/0xa40 [ 57.014863] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 57.020739] ? rcu_note_context_switch+0x710/0x710 [ 57.025658] ? __might_sleep+0x95/0x190 [ 57.029622] ? down_read+0x96/0x150 [ 57.033234] ? ext4_filemap_fault+0x7a/0xad [ 57.037542] ? __down_interruptible+0x6b0/0x6b0 [ 57.042219] ext4_filemap_fault+0x82/0xad [ 57.046357] __do_fault+0xeb/0x30f [ 57.049880] ? vfs_read+0x11e/0x350 [ 57.053495] ? pte_offset_kernel+0xc7/0xc7 [ 57.057719] ? do_raw_spin_trylock+0x190/0x190 [ 57.062297] ? check_noncircular+0x20/0x20 [ 57.066524] ? check_noncircular+0x20/0x20 [ 57.070753] __handle_mm_fault+0x1d8f/0x3ce0 [ 57.075160] ? __pmd_alloc+0x4e0/0x4e0 [ 57.079045] ? find_held_lock+0x35/0x1d0 [ 57.083117] ? handle_mm_fault+0x248/0x8d0 [ 57.087343] ? lock_downgrade+0x980/0x980 [ 57.091495] handle_mm_fault+0x334/0x8d0 [ 57.095538] ? down_read_trylock+0xdb/0x170 [ 57.099841] ? __do_page_fault+0x32d/0xc90 [ 57.104067] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 57.108657] ? vmacache_find+0x5f/0x280 [ 57.112636] ? find_vma+0x30/0x150 [ 57.116171] __do_page_fault+0x5c9/0xc90 [ 57.120215] ? vfs_copy_file_range+0x940/0x940 [ 57.124785] ? mm_fault_error+0x2c0/0x2c0 [ 57.128907] ? avc_policy_seqno+0x9/0x20 [ 57.132947] do_page_fault+0xee/0x720 [ 57.136736] ? __do_page_fault+0xc90/0xc90 [ 57.140953] ? fput+0xd2/0x140 [ 57.144130] ? SyS_read+0x184/0x220 [ 57.147742] ? retint_user+0x18/0x18 [ 57.151443] ? page_fault+0x36/0x60 [ 57.155057] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 57.159894] ? page_fault+0x36/0x60 [ 57.163504] page_fault+0x4c/0x60 [ 57.166941] RIP: 0033:0x7f2f9bb0ad50 [ 57.170628] RSP: 002b:00007f2f997d1c38 EFLAGS: 00010246 [ 57.175979] RAX: 00000000006a5140 RBX: 00007f2f997d1cd0 RCX: 0000000000000001 [ 57.183227] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 00000000006a5150 [ 57.190480] RBP: 00007f2f997d1cdc R08: 0000000000000000 R09: 0000000000000001 [ 57.197736] R10: 00007f2f997d1d00 R11: 000000000000a08e R12: 00007f2f9be12540 [ 57.204987] R13: 00000000006a5150 R14: 0000000000000000 R15: 0000000000000000 [ 57.212354] Mem-Info: [ 57.214949] active_anon:5082 inactive_anon:62 isolated_anon:0 [ 57.214949] active_file:14 inactive_file:19 isolated_file:0 [ 57.214949] unevictable:0 dirty:6 writeback:0 unstable:0 [ 57.214949] slab_reclaimable:7265 slab_unreclaimable:82695 [ 57.214949] mapped:2 shmem:68 pagetables:309 bounce:0 [ 57.214949] free:23509 free_pcp:22 free_cma:0 [ 57.246988] Node 0 active_anon:20328kB inactive_anon:248kB active_file:28kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:24kB writeback:0kB shmem:272kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 12288kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 57.273885] 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 [ 57.300000] lowmem_reserve[]: 0 2870 6381 6381 [ 57.304638] Node 0 DMA32 free:43904kB min:30332kB low:37912kB high:45492kB active_anon:0kB inactive_anon:0kB active_file:4kB inactive_file:8kB unevictable:0kB writepending:0kB present:3129332kB managed:2942352kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 57.331822] lowmem_reserve[]: 0 0 3510 3510 [ 57.336187] Node 0 Normal free:34304kB min:37084kB low:46352kB high:55620kB active_anon:20328kB inactive_anon:248kB active_file:24kB inactive_file:96kB unevictable:0kB writepending:24kB present:4718592kB managed:3594632kB mlocked:0kB kernel_stack:3040kB pagetables:1236kB bounce:0kB free_pcp:88kB local_pcp:12kB free_cma:0kB [ 57.364939] lowmem_reserve[]: 0 0 0 0 [ 57.368756] 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 [ 57.382367] Node 0 DMA32: 4*4kB (UME) 6*8kB (UME) 2*16kB (ME) 5*32kB (UME) 6*64kB (UME) 6*128kB (UME) 6*256kB (UME) 4*512kB (ME) 4*1024kB (UME) 3*2048kB (ME) 7*4096kB (M) = 43904kB [ 57.398725] Node 0 Normal: 434*4kB (UME) 377*8kB (UME) 265*16kB (UM) 167*32kB (UM) 102*64kB (UM) 43*128kB (M) 17*256kB (M) 3*512kB (M) 0*1024kB 1*2048kB (M) 0*4096kB = 34304kB [ 57.414639] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 57.423230] 101 total pagecache pages [ 57.427054] 0 pages in swap cache [ 57.430521] Swap cache stats: add 0, delete 0, find 0/0 [ 57.435882] Free swap = 0kB [ 57.438887] Total swap = 0kB [ 57.441905] 1965979 pages RAM [ 57.444996] 0 pages HighMem/MovableOnly [ 57.448978] 327756 pages reserved [ 57.452516] Unreclaimable slab info: [ 57.456301] Name Used Total [ 57.461865] hashtab_node 118KB 119KB [ 57.467242] ebitmap_node 382KB 385KB [ 57.472623] avtab_node 1012KB 1013KB [ 57.477999] TIPC 1KB 7KB [ 57.483392] SCTPv6 2KB 4KB [ 57.488771] DCCPv6 2KB 7KB [ 57.494152] DCCP 2KB 6KB [ 57.499544] fib6_nodes 0KB 4KB [ 57.505635] ip6_dst_cache 5KB 11KB [ 57.510997] RAWv6 9KB 19KB [ 57.516376] UDPv6 12KB 14KB [ 57.521755] TCPv6 2KB 5KB [ 57.527148] sd_ext_cdb 0KB 3KB [ 57.532524] scsi_sense_cache 224KB 224KB [ 57.537884] virtio_scsi_cmd 16KB 16KB [ 57.543267] sgpool-128 8KB 8KB [ 57.548643] sgpool-64 4KB 6KB [ 57.554026] sgpool-32 441KB 441KB [ 57.559399] sgpool-16 152KB 153KB [ 57.564774] sgpool-8 352KB 352KB [ 57.570152] cfq_io_cq 16KB 19KB [ 57.575525] cfq_queue 25KB 27KB [ 57.580885] mqueue_inode_cache 1KB 7KB [ 57.586341] nfs_commit_data 3KB 7KB [ 57.591717] nfs_write_data 34KB 37KB [ 57.597091] jbd2_inode 1KB 3KB [ 57.602462] ext4_system_zone 0KB 3KB [ 57.607843] bio-1 1KB 3KB [ 57.613232] rpc_buffers 17KB 19KB [ 57.618607] rpc_tasks 2KB 3KB [ 57.623981] UNIX 784KB 784KB [ 57.629359] tcp_bind_bucket 0KB 4KB [ 57.634736] ip_fib_trie 0KB 3KB [ 57.640108] ip_fib_alias 0KB 3KB [ 57.645485] ip_dst_cache 3KB 8KB [ 57.650849] RAW 5KB 7KB [ 57.656225] UDP 29KB 39KB [ 57.661602] TCP 7KB 7KB [ 57.666969] hugetlbfs_inode_cache 1KB 7KB [ 57.672711] eventpoll_pwq 10KB 11KB [ 57.678083] eventpoll_epi 18KB 23KB [ 57.683460] inotify_inode_mark 3KB 7KB [ 57.688927] request_queue 31KB 33KB [ 57.694308] blkdev_ioc 22KB 23KB [ 57.699682] bio-0 641KB 641KB [ 57.705172] biovec-(1<<(21-12)) 635KB 635KB [ 57.710710] biovec-64 693KB 693KB [ 57.716085] biovec-16 145KB 146KB [ 57.721463] bio_integrity_payload 0KB 4KB [ 57.727174] khugepaged_mm_slot 0KB 3KB [ 57.732643] uid_cache 0KB 3KB [ 57.738032] dmaengine-unmap-2 0KB 3KB [ 57.743412] audit_buffer 0KB 3KB [ 57.748773] skbuff_fclone_cache 129KB 131KB [ 57.754324] skbuff_head_cache 1699KB 1702KB [ 57.759688] configfs_dir_cache 0KB 4KB [ 57.765145] file_lock_cache 155KB 158KB [ 57.770506] file_lock_ctx 1KB 3KB [ 57.775861] fsnotify_mark_connector 2KB 3KB [ 57.781740] shmem_inode_cache 1041KB 1042KB [ 57.787113] task_delay_info 302KB 343KB [ 57.792475] sigqueue 350KB 354KB [ 57.797831] kernfs_node_cache 2156KB 2157KB [ 57.803208] mnt_cache 15KB 16KB [ 57.808566] filp 8280KB 8542KB [ 57.813933] names_cache 109871KB 109909KB [ 57.819311] avc_node 37KB 43KB [ 57.824690] selinux_file_security 421KB 453KB [ 57.830396] selinux_inode_security 1930KB 1936KB [ 57.836205] key_jar 3KB 7KB [ 57.841566] nsproxy 0KB 3KB [ 57.846934] vm_area_struct 18003KB 18017KB [ 57.852315] mm_struct 4310KB 4328KB [ 57.857694] fs_cache 403KB 440KB [ 57.863055] files_cache 1513KB 1518KB [ 57.868426] signal_cache 2417KB 2422KB [ 57.873803] sighand_cache 212KB 256KB [ 57.879175] task_struct 10320KB 10320KB [ 57.884582] cred_jar 2280KB 2288KB [ 57.889941] anon_vma_chain 7475KB 7485KB [ 57.895311] anon_vma 133KB 281KB [ 57.900672] pid 210KB 256KB [ 57.906039] Acpi-Operand 106KB 170KB [ 57.911419] Acpi-Namespace 19KB 23KB [ 57.916780] numa_policy 0KB 3KB [ 57.922153] debug_objects_cache 474KB 477KB [ 57.927718] trace_event_file 145KB 147KB [ 57.933086] ftrace_event_field 257KB 259KB [ 57.938543] pool_workqueue 22KB 24KB [ 57.943921] page->ptl 2968KB 2976KB [ 57.949307] kmalloc-262144 1032KB 1032KB [ 57.954683] kmalloc-131072 650KB 650KB [ 57.960064] kmalloc-65536 264KB 264KB [ 57.965445] kmalloc-32768 627KB 627KB [ 57.970807] kmalloc-16384 148KB 148KB [ 57.976176] kmalloc-8192 503KB 503KB [ 57.981544] kmalloc-4096 7148KB 7186KB [ 57.986910] kmalloc-2048 3130KB 3136KB [ 57.992290] kmalloc-1024 4914KB 4914KB [ 57.997670] kmalloc-512 2666KB 2906KB [ 58.003041] kmalloc-256 1960KB 2370KB [ 58.008416] kmalloc-128 394KB 523KB [ 58.013791] kmalloc-96 2172KB 2172KB [ 58.019167] kmalloc-64 2468KB 2468KB [ 58.024537] kmalloc-32 2395KB 2401KB [ 58.030063] kmalloc-192 908KB 908KB [ 58.035426] kmem_cache 100KB 101KB [ 58.040790] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 58.049484] [ 1774] 0 1774 5366 167 90112 0 -1000 udevd [ 58.057727] [ 3343] 0 3343 30682 222 118784 0 0 rsyslogd [ 58.066148] [ 3398] 0 3398 4725 50 86016 0 0 cron [ 58.074225] [ 3408] 0 3408 3736 45 69632 0 0 mcstransd [ 58.082747] [ 3444] 0 3444 12490 153 139264 0 -1000 sshd [ 58.090825] [ 3468] 0 3468 3694 39 77824 0 0 getty [ 58.098990] [ 3469] 0 3469 3694 41 77824 0 0 getty [ 58.107151] [ 3470] 0 3470 3694 39 73728 0 0 getty [ 58.115315] [ 3471] 0 3471 3694 39 81920 0 0 getty [ 58.123477] [ 3472] 0 3472 3694 40 73728 0 0 getty [ 58.131635] [ 3473] 0 3473 3694 41 73728 0 0 getty [ 58.139781] [ 3474] 0 3474 3649 41 81920 0 0 getty [ 58.147938] [ 3479] 0 3479 5681 454 86016 0 -1000 udevd [ 58.156107] [ 3480] 0 3480 5681 454 86016 0 -1000 udevd [ 58.164275] [ 3500] 0 3500 17821 197 184320 0 0 sshd [ 58.172361] [ 3502] 0 3502 280 1 32768 0 0 syzkaller146509 [ 58.181394] [ 3503] 0 3503 4375 0 32768 0 0 syzkaller146509 [ 58.190430] [ 3504] 0 3504 4375 0 32768 0 0 syzkaller146509 [ 58.199446] [ 3505] 0 3505 4375 523 36864 0 0 syzkaller146509 [ 58.208477] [ 3506] 0 3506 4375 523 36864 0 0 syzkaller146509 [ 58.217522] [ 3507] 0 3507 4375 523 36864 0 0 syzkaller146509 [ 58.226541] [ 3508] 0 3508 4375 523 36864 0 0 syzkaller146509 [ 58.235569] [ 3509] 0 3509 4375 523 36864 0 0 syzkaller146509 [ 58.244604] [ 3510] 0 3510 4375 523 36864 0 0 syzkaller146509 [ 58.253618] Out of memory: Kill process 3505 (syzkaller146509) score 0 or sacrifice child [ 58.262210] Killed process 3505 (syzkaller146509) total-vm:17500kB, anon-rss:2092kB, file-rss:0kB, shmem-rss:0kB [ 58.275887] oom_reaper: reaped process 3505 (syzkaller146509), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 58.286446] syzkaller146509 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 58.299665] syzkaller146509 cpuset=/ mems_allowed=0 [ 58.304724] CPU: 0 PID: 3509 Comm: syzkaller146509 Not tainted 4.15.0-rc7+ #184 [ 58.312148] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.321472] Call Trace: [ 58.324038] dump_stack+0x194/0x257 [ 58.327637] ? arch_local_irq_restore+0x53/0x53 [ 58.332275] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 58.337439] dump_header+0x28c/0xe1e [ 58.341127] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 58.346288] ? pagefault_out_of_memory+0x152/0x152 [ 58.351183] ? check_noncircular+0x20/0x20 [ 58.355387] ? print_irqtrace_events+0x270/0x270 [ 58.360113] ? __lock_acquire+0x664/0x3e00 [ 58.364317] ? check_noncircular+0x20/0x20 [ 58.368526] ? find_held_lock+0x35/0x1d0 [ 58.372559] ? check_noncircular+0x20/0x20 [ 58.376762] ? task_will_free_mem+0x252/0xaa0 [ 58.381229] ? print_irqtrace_events+0x270/0x270 [ 58.385958] ? ___ratelimit+0x30d/0x630 [ 58.389900] ? lock_downgrade+0x980/0x980 [ 58.394028] ? lock_release+0xa40/0xa40 [ 58.397975] ? mark_held_locks+0xaf/0x100 [ 58.402091] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 58.407163] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 58.412152] ? trace_hardirqs_on+0xd/0x10 [ 58.416269] ? ___ratelimit+0x95/0x630 [ 58.420125] ? idr_get_free_cmn+0xfd0/0xfd0 [ 58.424420] ? check_noncircular+0x20/0x20 [ 58.428621] ? find_held_lock+0x138/0x1d0 [ 58.432744] oom_kill_process+0x8b5/0x14a0 [ 58.436949] ? has_ns_capability_noaudit+0x163/0x2a0 [ 58.442027] ? lock_downgrade+0x980/0x980 [ 58.446154] ? oom_evaluate_task+0x480/0x480 [ 58.450554] ? security_capable_noaudit+0x8b/0xc0 [ 58.455368] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 58.460439] ? has_capability+0x30/0x30 [ 58.464381] ? do_raw_spin_trylock+0x190/0x190 [ 58.468929] ? check_noncircular+0x20/0x20 [ 58.473152] ? has_capability_noaudit+0x24/0x30 [ 58.477789] ? oom_badness+0xd1/0x980 [ 58.481561] ? lock_release+0xa40/0xa40 [ 58.485501] ? do_try_to_free_pages+0xc53/0x1020 [ 58.490237] ? find_lock_task_mm+0x460/0x460 [ 58.494616] ? find_held_lock+0x35/0x1d0 [ 58.498650] ? out_of_memory+0xb3a/0x1220 [ 58.502765] ? lock_downgrade+0x980/0x980 [ 58.506882] ? lock_release+0xa40/0xa40 [ 58.510823] ? lock_acquire+0x1d5/0x580 [ 58.514767] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 58.519677] ? oom_evaluate_task+0x284/0x480 [ 58.524059] out_of_memory+0x86d/0x1220 [ 58.528012] ? oom_killer_disable+0x310/0x310 [ 58.532478] ? mutex_trylock+0x23a/0x2d0 [ 58.536507] ? __lock_is_held+0xb6/0x140 [ 58.540533] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 58.545966] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 58.550799] ? warn_alloc+0x2b0/0x2b0 [ 58.554568] ? lock_release+0xa40/0xa40 [ 58.558512] ? print_irqtrace_events+0x270/0x270 [ 58.563241] ? find_held_lock+0x35/0x1d0 [ 58.567276] ? __mutex_lock+0x5bd/0x1a80 [ 58.571310] ? __lock_acquire+0x664/0x3e00 [ 58.575514] ? lock_release+0xa40/0xa40 [ 58.579458] ? memset+0x31/0x40 [ 58.582707] ? do_raw_spin_trylock+0x190/0x190 [ 58.587282] ? __lock_is_held+0xb6/0x140 [ 58.591324] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 58.597186] ? find_held_lock+0x35/0x1d0 [ 58.601229] ? __might_sleep+0x95/0x190 [ 58.605178] __alloc_pages_nodemask+0x9fb/0xd80 [ 58.609826] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 58.614816] ? pcpu_chunk_refresh_hint+0x425/0x570 [ 58.619718] ? print_irqtrace_events+0x270/0x270 [ 58.624455] ? __lock_is_held+0xb6/0x140 [ 58.628494] ? find_next_bit+0x27/0x30 [ 58.632355] pcpu_populate_chunk+0x1b3/0x880 [ 58.636742] pcpu_alloc+0x978/0x10e0 [ 58.640433] ? pcpu_free_area+0xa00/0xa00 [ 58.644552] ? vmap_page_range_noflush+0x523/0x720 [ 58.649469] ? map_vm_area+0x9e/0xd0 [ 58.653154] ? __vmalloc_node_range+0x37a/0x650 [ 58.657798] ? array_map_alloc+0x2ef/0x830 [ 58.661998] ? __vmalloc_node_flags_caller+0x50/0x60 [ 58.667078] __alloc_percpu_gfp+0x27/0x30 [ 58.671201] array_map_alloc+0x68a/0x830 [ 58.675242] SyS_bpf+0x7f8/0x4420 [ 58.678662] ? check_noncircular+0x20/0x20 [ 58.682868] ? bpf_prog_get+0x20/0x20 [ 58.686646] ? perf_event_fork+0x30/0x30 [ 58.690686] ? __lock_is_held+0xb6/0x140 [ 58.694712] ? check_noncircular+0x20/0x20 [ 58.698920] ? __handle_mm_fault+0x80e/0x3ce0 [ 58.703386] ? check_noncircular+0x20/0x20 [ 58.707588] ? __pmd_alloc+0x4e0/0x4e0 [ 58.711443] ? vma_link+0xe9/0x170 [ 58.714952] ? find_held_lock+0x35/0x1d0 [ 58.718987] ? handle_mm_fault+0x248/0x8d0 [ 58.723191] ? find_held_lock+0x35/0x1d0 [ 58.727230] ? __do_page_fault+0x5f7/0xc90 [ 58.731433] ? lock_downgrade+0x980/0x980 [ 58.735557] ? handle_mm_fault+0x410/0x8d0 [ 58.739759] ? down_read_trylock+0xdb/0x170 [ 58.744046] ? __do_page_fault+0x32d/0xc90 [ 58.748248] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 58.752794] ? vmacache_find+0x5f/0x280 [ 58.756740] ? vmacache_update+0xfe/0x130 [ 58.760859] ? up_read+0x1a/0x40 [ 58.764195] ? __do_page_fault+0x3d6/0xc90 [ 58.768405] ? mm_fault_error+0x2c0/0x2c0 [ 58.772532] ? do_page_fault+0xee/0x720 [ 58.776481] ? __do_page_fault+0xc90/0xc90 [ 58.780692] ? SyS_mmap_pgoff+0x243/0x5f0 [ 58.784817] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 58.789567] entry_SYSCALL_64_fastpath+0x23/0x9a [ 58.794289] RIP: 0033:0x440139 [ 58.797445] RSP: 002b:00007fffea9d2488 EFLAGS: 00000217 ORIG_RAX: 0000000000000141 [ 58.805120] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 0000000000440139 [ 58.812363] RDX: 000000000000002c RSI: 0000000020c47fec RDI: 0000000000000000 [ 58.819607] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 58.826849] R10: 00000000ffffffff R11: 0000000000000217 R12: 00000000004016a0 [ 58.834084] R13: 0000000000401730 R14: 0000000000000000 R15: 0000000000000000 [ 58.841468] Mem-Info: [ 58.843972] active_anon:4566 inactive_anon:62 isolated_anon:0 [ 58.843972] active_file:10 inactive_file:23 isolated_file:0 [ 58.843972] unevictable:0 dirty:6 writeback:0 unstable:0 [ 58.843972] slab_reclaimable:7265 slab_unreclaimable:82684 [ 58.843972] mapped:2 shmem:68 pagetables:309 bounce:0 [ 58.843972] free:24041 free_pcp:31 free_cma:0 [ 58.876057] Node 0 active_anon:18260kB inactive_anon:248kB active_file:60kB inactive_file:72kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:24kB writeback:0kB shmem:272kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 10240kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 58.903054] 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 [ 58.929206] lowmem_reserve[]: 0 2870 6381 6381 [ 58.933914] Node 0 DMA32 free:43904kB min:30332kB low:37912kB high:45492kB active_anon:0kB inactive_anon:0kB active_file:12kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2942352kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 58.961185] lowmem_reserve[]: 0 0 3510 3510 [ 58.965542] Node 0 Normal free:36384kB min:37084kB low:46352kB high:55620kB active_anon:18260kB inactive_anon:248kB active_file:56kB inactive_file:64kB unevictable:0kB writepending:24kB present:4718592kB managed:3594632kB mlocked:0kB kernel_stack:3040kB pagetables:1232kB bounce:0kB free_pcp:124kB local_pcp:12kB free_cma:0kB [ 58.994386] lowmem_reserve[]: 0 0 0 0 [ 58.998208] 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 [ 59.011782] Node 0 DMA32: 4*4kB (UME) 6*8kB (UME) 2*16kB (ME) 5*32kB (UME) 6*64kB (UME) 6*128kB (UME) 6*256kB (UME) 4*512kB (ME) 4*1024kB (UME) 3*2048kB (ME) 7*4096kB (M) = 43904kB [ 59.028073] Node 0 Normal: 434*4kB (UME) 379*8kB (UME) 266*16kB (UM) 167*32kB (UM) 102*64kB (UM) 43*128kB (M) 17*256kB (M) 3*512kB (M) 0*1024kB 2*2048kB (M) 0*4096kB = 36384kB [ 59.043978] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 59.052561] 101 total pagecache pages [ 59.056363] 0 pages in swap cache [ 59.059812] Swap cache stats: add 0, delete 0, find 0/0 [ 59.065179] Free swap = 0kB [ 59.068203] Total swap = 0kB [ 59.071225] 1965979 pages RAM [ 59.074331] 0 pages HighMem/MovableOnly [ 59.078308] 327756 pages reserved [ 59.081765] Unreclaimable slab info: [ 59.085473] Name Used Total [ 59.091040] hashtab_node 118KB 119KB [ 59.096417] ebitmap_node 382KB 385KB [ 59.101796] avtab_node 1012KB 1013KB [ 59.107182] TIPC 1KB 7KB [ 59.112562] SCTPv6 2KB 4KB [ 59.117944] DCCPv6 2KB 7KB [ 59.123327] DCCP 2KB 6KB [ 59.128716] fib6_nodes 0KB 4KB [ 59.134098] ip6_dst_cache 5KB 11KB [ 59.139479] RAWv6 9KB 19KB [ 59.144840] UDPv6 12KB 14KB [ 59.150211] TCPv6 2KB 5KB [ 59.155599] sd_ext_cdb 0KB 3KB [ 59.160954] scsi_sense_cache 221KB 224KB [ 59.166322] virtio_scsi_cmd 16KB 16KB [ 59.171690] sgpool-128 8KB 8KB [ 59.177063] sgpool-64 4KB 6KB [ 59.182425] sgpool-32 435KB 441KB [ 59.187791] sgpool-16 151KB 153KB [ 59.193162] sgpool-8 352KB 352KB [ 59.198535] cfq_io_cq 16KB 19KB [ 59.203908] cfq_queue 25KB 27KB [ 59.209280] mqueue_inode_cache 1KB 7KB [ 59.214732] nfs_commit_data 3KB 7KB [ 59.220108] nfs_write_data 34KB 37KB [ 59.225470] jbd2_inode 1KB 3KB [ 59.230837] ext4_system_zone 0KB 3KB [ 59.236216] bio-1 1KB 3KB [ 59.241594] rpc_buffers 17KB 19KB [ 59.246971] rpc_tasks 2KB 3KB [ 59.252357] UNIX 784KB 784KB [ 59.257736] tcp_bind_bucket 0KB 4KB [ 59.263118] ip_fib_trie 0KB 3KB [ 59.268493] ip_fib_alias 0KB 3KB [ 59.273870] ip_dst_cache 3KB 8KB [ 59.279244] RAW 5KB 7KB [ 59.284619] UDP 29KB 39KB [ 59.289998] TCP 7KB 7KB [ 59.295360] hugetlbfs_inode_cache 1KB 7KB [ 59.301084] eventpoll_pwq 10KB 11KB [ 59.306462] eventpoll_epi 18KB 23KB [ 59.311822] inotify_inode_mark 3KB 7KB [ 59.317277] request_queue 31KB 33KB [ 59.322642] blkdev_ioc 22KB 23KB [ 59.328042] bio-0 639KB 641KB [ 59.333417] biovec-(1<<(21-12)) 635KB 635KB [ 59.338968] biovec-64 687KB 693KB [ 59.344334] biovec-16 145KB 146KB [ 59.349691] bio_integrity_payload 0KB 4KB [ 59.355411] khugepaged_mm_slot 0KB 3KB [ 59.360875] uid_cache 0KB 3KB [ 59.366245] dmaengine-unmap-2 0KB 3KB [ 59.371611] audit_buffer 0KB 3KB [ 59.376980] skbuff_fclone_cache 129KB 131KB [ 59.382541] skbuff_head_cache 1699KB 1702KB [ 59.387907] configfs_dir_cache 0KB 4KB [ 59.393362] file_lock_cache 155KB 158KB [ 59.398740] file_lock_ctx 1KB 3KB [ 59.404132] fsnotify_mark_connector 2KB 3KB [ 59.410046] shmem_inode_cache 1041KB 1042KB [ 59.415428] task_delay_info 302KB 343KB [ 59.420801] sigqueue 349KB 354KB [ 59.426174] kernfs_node_cache 2156KB 2157KB [ 59.431549] mnt_cache 15KB 16KB [ 59.436927] filp 8273KB 8535KB [ 59.442304] names_cache 109862KB 109900KB [ 59.447686] avc_node 37KB 43KB [ 59.453067] selinux_file_security 420KB 453KB [ 59.458794] selinux_inode_security 1930KB 1936KB [ 59.464605] key_jar 3KB 7KB [ 59.469984] nsproxy 0KB 3KB [ 59.475365] vm_area_struct 18000KB 18017KB [ 59.480749] mm_struct 4309KB 4328KB [ 59.486127] fs_cache 403KB 440KB [ 59.491506] files_cache 1513KB 1518KB [ 59.496888] signal_cache 2417KB 2422KB [ 59.502254] sighand_cache 212KB 256KB [ 59.508583] task_struct 10320KB 10320KB [ 59.513972] cred_jar 2279KB 2288KB [ 59.519336] anon_vma_chain 7473KB 7485KB [ 59.524704] anon_vma 127KB 281KB [ 59.530084] pid 210KB 256KB [ 59.535465] Acpi-Operand 106KB 170KB [ 59.540828] Acpi-Namespace 19KB 23KB [ 59.546198] numa_policy 0KB 3KB [ 59.551558] debug_objects_cache 474KB 477KB [ 59.557102] trace_event_file 145KB 147KB [ 59.562470] ftrace_event_field 257KB 259KB [ 59.567929] pool_workqueue 22KB 24KB [ 59.573308] page->ptl 2966KB 2976KB [ 59.578685] kmalloc-262144 1032KB 1032KB [ 59.584057] kmalloc-131072 650KB 650KB [ 59.589522] kmalloc-65536 264KB 264KB [ 59.594881] kmalloc-32768 627KB 627KB [ 59.600253] kmalloc-16384 148KB 148KB [ 59.605625] kmalloc-8192 503KB 503KB [ 59.611000] kmalloc-4096 7140KB 7178KB [ 59.616407] kmalloc-2048 3130KB 3136KB [ 59.621772] kmalloc-1024 4912KB 4914KB [ 59.627149] kmalloc-512 2665KB 2906KB [ 59.632526] kmalloc-256 1957KB 2366KB [ 59.637882] kmalloc-128 394KB 523KB [ 59.643257] kmalloc-96 2171KB 2172KB [ 59.648622] kmalloc-64 2466KB 2468KB [ 59.653994] kmalloc-32 2394KB 2401KB [ 59.659373] kmalloc-192 907KB 908KB [ 59.664740] kmem_cache 100KB 101KB [ 59.670111] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 59.678721] [ 1774] 0 1774 5366 167 90112 0 -1000 udevd [ 59.686887] [ 3343] 0 3343 30682 222 118784 0 0 rsyslogd [ 59.695312] [ 3398] 0 3398 4725 50 86016 0 0 cron [ 59.703389] [ 3408] 0 3408 3736 45 69632 0 0 mcstransd [ 59.711901] [ 3444] 0 3444 12490 153 139264 0 -1000 sshd [ 59.719984] [ 3468] 0 3468 3694 39 77824 0 0 getty [ 59.728155] [ 3469] 0 3469 3694 41 77824 0 0 getty [ 59.736319] [ 3470] 0 3470 3694 39 73728 0 0 getty [ 59.744527] [ 3471] 0 3471 3694 39 81920 0 0 getty [ 59.752696] [ 3472] 0 3472 3694 40 73728 0 0 getty [ 59.760861] [ 3473] 0 3473 3694 41 73728 0 0 getty [ 59.769046] [ 3474] 0 3474 3649 41 81920 0 0 getty [ 59.777220] [ 3479] 0 3479 5681 454 86016 0 -1000 udevd [ 59.785370] [ 3480] 0 3480 5681 454 86016 0 -1000 udevd [ 59.793526] [ 3500] 0 3500 17821 197 184320 0 0 sshd [ 59.801594] [ 3502] 0 3502 280 1 32768 0 0 syzkaller146509 [ 59.810619] [ 3503] 0 3503 4375 0 32768 0 0 syzkaller146509 [ 59.819647] [ 3504] 0 3504 4375 0 32768 0 0 syzkaller146509 [ 59.828678] [ 3505] 0 3505 4375 0 32768 0 0 syzkaller146509 [ 59.837705] [ 3506] 0 3506 4375 523 36864 0 0 syzkaller146509 [ 59.846732] [ 3507] 0 3507 4375 523 36864 0 0 syzkaller146509 [ 59.855759] [ 3508] 0 3508 4375 523 36864 0 0 syzkaller146509 [ 59.864790] [ 3509] 0 3509 4375 523 36864 0 0 syzkaller146509 [ 59.873811] [ 3510] 0 3510 4375 523 36864 0 0 syzkaller146509 [ 59.882857] Out of memory: Kill process 3506 (syzkaller146509) score 0 or sacrifice child [ 59.892697] Killed process 3506 (syzkaller146509) total-vm:17500kB, anon-rss:2092kB, file-rss:0kB, shmem-rss:0kB [ 59.906415] oom_reaper: reaped process 3506 (syzkaller146509), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 59.920076] syzkaller146509 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 59.932528] syzkaller146509 cpuset=/ mems_allowed=0 [ 59.937609] CPU: 0 PID: 3507 Comm: syzkaller146509 Not tainted 4.15.0-rc7+ #184 [ 59.945038] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.954377] Call Trace: [ 59.956955] dump_stack+0x194/0x257 [ 59.960575] ? arch_local_irq_restore+0x53/0x53 [ 59.965233] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 59.970424] dump_header+0x28c/0xe1e [ 59.974136] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 59.979319] ? pagefault_out_of_memory+0x152/0x152 [ 59.984232] ? check_noncircular+0x20/0x20 [ 59.988458] ? print_irqtrace_events+0x270/0x270 [ 59.993206] ? __lock_acquire+0x664/0x3e00 [ 59.997436] ? check_noncircular+0x20/0x20 [ 60.001666] ? find_held_lock+0x35/0x1d0 [ 60.005723] ? check_noncircular+0x20/0x20 [ 60.009940] ? task_will_free_mem+0x252/0xaa0 [ 60.014428] ? print_irqtrace_events+0x270/0x270 [ 60.019183] ? ___ratelimit+0x30d/0x630 [ 60.023143] ? lock_downgrade+0x980/0x980 [ 60.027282] ? lock_release+0xa40/0xa40 [ 60.031248] ? mark_held_locks+0xaf/0x100 [ 60.035383] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 60.040476] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 60.045478] ? trace_hardirqs_on+0xd/0x10 [ 60.049619] ? ___ratelimit+0x95/0x630 [ 60.053494] ? idr_get_free_cmn+0xfd0/0xfd0 [ 60.057802] ? check_noncircular+0x20/0x20 [ 60.062023] ? find_held_lock+0x138/0x1d0 [ 60.066173] oom_kill_process+0x8b5/0x14a0 [ 60.070403] ? has_ns_capability_noaudit+0x163/0x2a0 [ 60.075495] ? lock_downgrade+0x980/0x980 [ 60.079637] ? oom_evaluate_task+0x480/0x480 [ 60.084051] ? security_capable_noaudit+0x8b/0xc0 [ 60.088887] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 60.093977] ? has_capability+0x30/0x30 [ 60.097950] ? do_raw_spin_trylock+0x190/0x190 [ 60.102519] ? check_noncircular+0x20/0x20 [ 60.106752] ? has_capability_noaudit+0x24/0x30 [ 60.111410] ? oom_badness+0xd1/0x980 [ 60.115190] ? lock_release+0xa40/0xa40 [ 60.119148] ? do_try_to_free_pages+0xc53/0x1020 [ 60.123891] ? find_lock_task_mm+0x460/0x460 [ 60.128296] ? find_held_lock+0x35/0x1d0 [ 60.132355] ? out_of_memory+0xb3a/0x1220 [ 60.136488] ? lock_downgrade+0x980/0x980 [ 60.140626] ? lock_release+0xa40/0xa40 [ 60.144579] ? lock_acquire+0x1d5/0x580 [ 60.148541] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 60.153468] ? oom_evaluate_task+0x284/0x480 [ 60.157870] out_of_memory+0x86d/0x1220 [ 60.161846] ? oom_killer_disable+0x310/0x310 [ 60.166321] ? mutex_trylock+0x23a/0x2d0 [ 60.170369] ? __lock_is_held+0xb6/0x140 [ 60.174418] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 60.179873] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 60.184756] ? warn_alloc+0x2b0/0x2b0 [ 60.188546] ? lock_release+0xa40/0xa40 [ 60.192510] ? print_irqtrace_events+0x270/0x270 [ 60.197263] ? find_held_lock+0x35/0x1d0 [ 60.201324] ? __mutex_lock+0x5bd/0x1a80 [ 60.205377] ? __lock_acquire+0x664/0x3e00 [ 60.209594] ? lock_release+0xa40/0xa40 [ 60.213557] ? memset+0x31/0x40 [ 60.216825] ? do_raw_spin_trylock+0x190/0x190 [ 60.221424] ? __lock_is_held+0xb6/0x140 [ 60.225498] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 60.231366] ? find_held_lock+0x35/0x1d0 [ 60.235429] ? __might_sleep+0x95/0x190 [ 60.239397] __alloc_pages_nodemask+0x9fb/0xd80 [ 60.244064] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 60.249082] ? pcpu_chunk_refresh_hint+0x425/0x570 [ 60.254008] ? print_irqtrace_events+0x270/0x270 [ 60.258763] ? __lock_is_held+0xb6/0x140 [ 60.262824] ? find_next_bit+0x27/0x30 [ 60.266706] pcpu_populate_chunk+0x1b3/0x880 [ 60.271120] pcpu_alloc+0x978/0x10e0 [ 60.274837] ? pcpu_free_area+0xa00/0xa00 [ 60.278980] ? vmap_page_range_noflush+0x523/0x720 [ 60.283920] ? retint_kernel+0x10/0x10 [ 60.287796] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 60.292800] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 60.297553] ? retint_kernel+0x10/0x10 [ 60.301445] __alloc_percpu_gfp+0x27/0x30 [ 60.305582] array_map_alloc+0x68a/0x830 [ 60.309640] SyS_bpf+0x7f8/0x4420 [ 60.313075] ? check_noncircular+0x20/0x20 [ 60.317305] ? bpf_prog_get+0x20/0x20 [ 60.321100] ? perf_event_fork+0x30/0x30 [ 60.325170] ? __lock_is_held+0xb6/0x140 [ 60.329216] ? check_noncircular+0x20/0x20 [ 60.333448] ? __handle_mm_fault+0x80e/0x3ce0 [ 60.337936] ? check_noncircular+0x20/0x20 [ 60.342151] ? __pmd_alloc+0x4e0/0x4e0 [ 60.346034] ? vma_link+0xe9/0x170 [ 60.349566] ? find_held_lock+0x35/0x1d0 [ 60.353626] ? handle_mm_fault+0x248/0x8d0 [ 60.357851] ? find_held_lock+0x35/0x1d0 [ 60.361911] ? __do_page_fault+0x5f7/0xc90 [ 60.366134] ? lock_downgrade+0x980/0x980 [ 60.370302] ? handle_mm_fault+0x410/0x8d0 [ 60.374528] ? down_read_trylock+0xdb/0x170 [ 60.378832] ? __do_page_fault+0x32d/0xc90 [ 60.383054] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 60.387616] ? vmacache_find+0x5f/0x280 [ 60.391591] ? vmacache_update+0xfe/0x130 [ 60.395735] ? up_read+0x1a/0x40 [ 60.399087] ? __do_page_fault+0x3d6/0xc90 [ 60.403318] ? mm_fault_error+0x2c0/0x2c0 [ 60.407468] ? do_page_fault+0xee/0x720 [ 60.411432] ? __do_page_fault+0xc90/0xc90 [ 60.415672] ? SyS_mmap_pgoff+0x243/0x5f0 [ 60.419832] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 60.424586] entry_SYSCALL_64_fastpath+0x23/0x9a [ 60.429322] RIP: 0033:0x440139 [ 60.432491] RSP: 002b:00007fffea9d2488 EFLAGS: 00000217 ORIG_RAX: 0000000000000141 [ 60.440183] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 0000000000440139 [ 60.447438] RDX: 000000000000002c RSI: 0000000020c47fec RDI: 0000000000000000 [ 60.454694] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 60.461949] R10: 00000000ffffffff R11: 0000000000000217 R12: 00000000004016a0 [ 60.469206] R13: 0000000000401730 R14: 0000000000000000 R15: 0000000000000000 [ 60.476570] Mem-Info: [ 60.479819] active_anon:4048 inactive_anon:62 isolated_anon:0 [ 60.479819] active_file:1 inactive_file:32 isolated_file:0 [ 60.479819] unevictable:0 dirty:6 writeback:0 unstable:0 [ 60.479819] slab_reclaimable:7265 slab_unreclaimable:82673 [ 60.479819] mapped:2 shmem:68 pagetables:307 bounce:0 [ 60.479819] free:23998 free_pcp:41 free_cma:0 [ 60.512424] Node 0 active_anon:16192kB inactive_anon:248kB active_file:32kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):92kB mapped:8kB dirty:24kB writeback:0kB shmem:272kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 8192kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 60.539339] 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 [ 60.565494] lowmem_reserve[]: 0 2870 6381 6381 [ 60.570122] Node 0 DMA32 free:43904kB min:30332kB low:37912kB high:45492kB active_anon:0kB inactive_anon:0kB active_file:24kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2942352kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 60.597382] lowmem_reserve[]: 0 0 3510 3510 [ 60.601727] Node 0 Normal free:36180kB min:37084kB low:46352kB high:55620kB active_anon:16192kB inactive_anon:248kB active_file:32kB inactive_file:16kB unevictable:0kB writepending:24kB present:4718592kB managed:3594632kB mlocked:0kB kernel_stack:3040kB pagetables:1228kB bounce:0kB free_pcp:164kB local_pcp:164kB free_cma:0kB [ 60.630998] lowmem_reserve[]: 0 0 0 0 [ 60.635780] 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 [ 60.649985] Node 0 DMA32: 4*4kB (UME) 6*8kB (UME) 2*16kB (ME) 5*32kB (UME) 6*64kB (UME) 6*128kB (UME) 6*256kB (UME) 4*512kB (ME) 4*1024kB (UME) 3*2048kB (ME) 7*4096kB (M) = 43904kB [ 60.666375] Node 0 Normal: 417*4kB (UME) 368*8kB (UME) 263*16kB (M) 167*32kB (M) 102*64kB (UM) 43*128kB (M) 17*256kB (M) 3*512kB (M) 0*1024kB 2*2048kB (UM) 0*4096kB = 36180kB [ 60.682200] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 60.690780] 113 total pagecache pages [ 60.694589] 0 pages in swap cache [ 60.698050] Swap cache stats: add 0, delete 0, find 0/0 [ 60.703419] Free swap = 0kB [ 60.706435] Total swap = 0kB [ 60.709452] 1965979 pages RAM [ 60.712551] 0 pages HighMem/MovableOnly [ 60.716513] 327756 pages reserved [ 60.719972] Unreclaimable slab info: [ 60.723680] Name Used Total [ 60.729228] hashtab_node 118KB 119KB [ 60.734590] ebitmap_node 382KB 385KB [ 60.739973] avtab_node 1012KB 1013KB [ 60.745339] TIPC 1KB 7KB [ 60.750702] SCTPv6 2KB 4KB [ 60.756069] DCCPv6 2KB 7KB [ 60.761434] DCCP 2KB 6KB [ 60.766815] fib6_nodes 0KB 4KB [ 60.772223] ip6_dst_cache 5KB 11KB [ 60.777614] RAWv6 9KB 19KB [ 60.783000] UDPv6 12KB 14KB [ 60.788407] TCPv6 2KB 5KB [ 60.793792] sd_ext_cdb 0KB 3KB [ 60.799168] scsi_sense_cache 219KB 224KB [ 60.804548] virtio_scsi_cmd 16KB 16KB [ 60.809917] sgpool-128 8KB 8KB [ 60.815289] sgpool-64 4KB 6KB [ 60.820665] sgpool-32 432KB 441KB [ 60.826039] sgpool-16 153KB 153KB [ 60.831420] sgpool-8 351KB 352KB [ 60.836788] cfq_io_cq 16KB 19KB [ 60.842146] cfq_queue 24KB 27KB [ 60.847519] mqueue_inode_cache 1KB 7KB [ 60.852987] nfs_commit_data 3KB 7KB [ 60.858355] nfs_write_data 34KB 37KB [ 60.863713] jbd2_inode 1KB 3KB [ 60.869068] ext4_system_zone 0KB 3KB [ 60.874453] bio-1 1KB 3KB [ 60.879840] rpc_buffers 17KB 19KB [ 60.885207] rpc_tasks 2KB 3KB [ 60.890598] UNIX 784KB 784KB [ 60.895999] tcp_bind_bucket 0KB 4KB [ 60.901413] ip_fib_trie 0KB 3KB [ 60.906787] ip_fib_alias 0KB 3KB [ 60.912158] ip_dst_cache 3KB 8KB [ 60.917542] RAW 5KB 7KB [ 60.922902] UDP 29KB 39KB [ 60.928281] TCP 7KB 7KB [ 60.933641] hugetlbfs_inode_cache 1KB 7KB [ 60.939364] eventpoll_pwq 10KB 11KB [ 60.944740] eventpoll_epi 18KB 23KB [ 60.950113] inotify_inode_mark 3KB 7KB [ 60.955590] request_queue 31KB 33KB [ 60.960954] blkdev_ioc 21KB 23KB [ 60.966330] bio-0 640KB 641KB [ 60.971693] biovec-(1<<(21-12)) 635KB 635KB [ 60.977240] biovec-64 685KB 693KB [ 60.982615] biovec-16 145KB 146KB [ 60.987973] bio_integrity_payload 0KB 4KB [ 60.993689] khugepaged_mm_slot 0KB 3KB [ 60.999156] uid_cache 0KB 3KB [ 61.004531] dmaengine-unmap-2 0KB 3KB [ 61.009918] audit_buffer 0KB 3KB [ 61.015299] skbuff_fclone_cache 129KB 131KB [ 61.020849] skbuff_head_cache 1699KB 1702KB [ 61.026242] configfs_dir_cache 0KB 4KB [ 61.031710] file_lock_cache 155KB 158KB [ 61.037094] file_lock_ctx 1KB 3KB [ 61.042476] fsnotify_mark_connector 2KB 3KB [ 61.048378] shmem_inode_cache 1041KB 1042KB [ 61.053751] task_delay_info 302KB 343KB [ 61.059127] sigqueue 348KB 354KB [ 61.064505] kernfs_node_cache 2156KB 2157KB [ 61.069876] mnt_cache 15KB 16KB [ 61.075251] filp 8269KB 8531KB [ 61.080627] names_cache 109849KB 109888KB [ 61.086051] avc_node 37KB 43KB [ 61.091414] selinux_file_security 420KB 453KB [ 61.097134] selinux_inode_security 1930KB 1936KB [ 61.102932] key_jar 3KB 7KB [ 61.108303] nsproxy 0KB 3KB [ 61.113665] vm_area_struct 17997KB 18013KB [ 61.119051] mm_struct 4309KB 4328KB [ 61.124437] fs_cache 403KB 440KB [ 61.129799] files_cache 1513KB 1518KB [ 61.135174] signal_cache 2417KB 2422KB [ 61.140552] sighand_cache 212KB 256KB [ 61.145933] task_struct 10320KB 10320KB [ 61.151311] cred_jar 2279KB 2288KB [ 61.156686] anon_vma_chain 7472KB 7485KB [ 61.162058] anon_vma 125KB 277KB [ 61.167436] pid 210KB 256KB [ 61.172816] Acpi-Operand 106KB 170KB [ 61.178195] Acpi-Namespace 19KB 23KB [ 61.183572] numa_policy 0KB 3KB [ 61.188956] debug_objects_cache 473KB 477KB [ 61.194505] trace_event_file 145KB 147KB [ 61.199887] ftrace_event_field 257KB 259KB [ 61.205351] pool_workqueue 22KB 24KB [ 61.210727] page->ptl 2966KB 2976KB [ 61.216112] kmalloc-262144 1032KB 1032KB [ 61.221485] kmalloc-131072 650KB 650KB [ 61.226845] kmalloc-65536 264KB 264KB [ 61.232214] kmalloc-32768 627KB 627KB [ 61.237596] kmalloc-16384 148KB 148KB [ 61.242976] kmalloc-8192 503KB 503KB [ 61.248341] kmalloc-4096 7131KB 7169KB [ 61.253713] kmalloc-2048 3130KB 3136KB [ 61.259091] kmalloc-1024 4921KB 4921KB [ 61.264469] kmalloc-512 2665KB 2906KB [ 61.269833] kmalloc-256 1952KB 2362KB [ 61.275209] kmalloc-128 394KB 523KB [ 61.280596] kmalloc-96 2171KB 2172KB [ 61.285980] kmalloc-64 2465KB 2468KB [ 61.291348] kmalloc-32 2391KB 2401KB [ 61.296719] kmalloc-192 905KB 908KB [ 61.302098] kmem_cache 100KB 101KB [ 61.307492] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 61.316100] [ 1774] 0 1774 5366 167 90112 0 -1000 udevd [ 61.324263] [ 3343] 0 3343 30682 222 118784 0 0 rsyslogd [ 61.332697] [ 3398] 0 3398 4725 50 86016 0 0 cron [ 61.340785] [ 3408] 0 3408 3736 45 69632 0 0 mcstransd [ 61.349294] [ 3444] 0 3444 12490 153 139264 0 -1000 sshd [ 61.357750] [ 3468] 0 3468 3694 39 77824 0 0 getty [ 61.365935] [ 3469] 0 3469 3694 41 77824 0 0 getty [ 61.374113] [ 3470] 0 3470 3694 39 73728 0 0 getty [ 61.382268] [ 3471] 0 3471 3694 39 81920 0 0 getty [ 61.390436] [ 3472] 0 3472 3694 40 73728 0 0 getty [ 61.398618] [ 3473] 0 3473 3694 41 73728 0 0 getty [ 61.406790] [ 3474] 0 3474 3649 41 81920 0 0 getty [ 61.414985] [ 3479] 0 3479 5681 454 86016 0 -1000 udevd [ 61.423160] [ 3480] 0 3480 5681 454 86016 0 -1000 udevd [ 61.431332] [ 3500] 0 3500 17821 197 184320 0 0 sshd [ 61.439408] [ 3502] 0 3502 280 1 32768 0 0 syzkaller146509 [ 61.448455] [ 3503] 0 3503 4375 0 32768 0 0 syzkaller146509 [ 61.457483] [ 3504] 0 3504 4375 0 32768 0 0 syzkaller146509 [ 61.466519] [ 3505] 0 3505 4375 0 32768 0 0 syzkaller146509 [ 61.475549] [ 3506] 0 3506 4375 0 32768 0 0 syzkaller146509 [ 61.484583] [ 3507] 0 3507 4375 523 36864 0 0 syzkaller146509 [ 61.493631] [ 3508] 0 3508 4375 523 36864 0 0 syzkaller146509 [ 61.502662] [ 3509] 0 3509 4375 523 36864 0 0 syzkaller146509 [ 61.512643] [ 3510] 0 3510 4375 523 36864 0 0 syzkaller146509 [ 61.521660] Out of memory: Kill process 3507 (syzkaller146509) score 0 or sacrifice child [ 61.531051] Killed process 3507 (syzkaller146509) total-vm:17500kB, anon-rss:2092kB, file-rss:0kB, shmem-rss:0kB [ 61.543062] oom_reaper: reaped process 3507 (syzkaller146509), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 61.645692] rs:main Q:Reg invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=0 [ 61.663855] rs:main Q:Reg cpuset=/ mems_allowed=0 [ 61.668751] CPU: 1 PID: 3344 Comm: rs:main Q:Reg Not tainted 4.15.0-rc7+ #184 [ 61.676005] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.685343] Call Trace: [ 61.687919] dump_stack+0x194/0x257 [ 61.691536] ? arch_local_irq_restore+0x53/0x53 [ 61.696194] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 61.701388] dump_header+0x28c/0xe1e [ 61.705096] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 61.710273] ? pagefault_out_of_memory+0x152/0x152 [ 61.715187] ? check_noncircular+0x20/0x20 [ 61.719408] ? print_irqtrace_events+0x270/0x270 [ 61.724154] ? __lock_acquire+0x664/0x3e00 [ 61.728383] ? check_noncircular+0x20/0x20 [ 61.732614] ? find_held_lock+0x35/0x1d0 [ 61.736668] ? check_noncircular+0x20/0x20 [ 61.740883] ? task_will_free_mem+0x252/0xaa0 [ 61.745378] ? print_irqtrace_events+0x270/0x270 [ 61.750131] ? ___ratelimit+0x30d/0x630 [ 61.754090] ? lock_downgrade+0x980/0x980 [ 61.758228] ? lock_release+0xa40/0xa40 [ 61.762193] ? mark_held_locks+0xaf/0x100 [ 61.766330] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 61.771421] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 61.776419] ? trace_hardirqs_on+0xd/0x10 [ 61.780554] ? ___ratelimit+0x95/0x630 [ 61.784431] ? idr_get_free_cmn+0xfd0/0xfd0 [ 61.788735] ? check_noncircular+0x20/0x20 [ 61.792949] ? find_held_lock+0x138/0x1d0 [ 61.797094] oom_kill_process+0x8b5/0x14a0 [ 61.801319] ? has_ns_capability_noaudit+0x163/0x2a0 [ 61.806412] ? lock_downgrade+0x980/0x980 [ 61.810552] ? oom_evaluate_task+0x480/0x480 [ 61.814965] ? security_capable_noaudit+0x8b/0xc0 [ 61.819797] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 61.824886] ? has_capability+0x30/0x30 [ 61.828839] ? do_raw_spin_trylock+0x190/0x190 [ 61.833404] ? check_noncircular+0x20/0x20 [ 61.837633] ? has_capability_noaudit+0x24/0x30 [ 61.842288] ? oom_badness+0xd1/0x980 [ 61.846069] ? lock_release+0xa40/0xa40 [ 61.850024] ? do_try_to_free_pages+0xc53/0x1020 [ 61.854774] ? find_lock_task_mm+0x460/0x460 [ 61.859175] ? find_held_lock+0x35/0x1d0 [ 61.863232] ? out_of_memory+0xb3a/0x1220 [ 61.867366] ? lock_downgrade+0x980/0x980 [ 61.871503] ? lock_release+0xa40/0xa40 [ 61.875477] ? lock_acquire+0x1d5/0x580 [ 61.879436] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 61.884360] ? oom_evaluate_task+0x284/0x480 [ 61.888761] out_of_memory+0x86d/0x1220 [ 61.892716] ? trace_hardirqs_on+0xd/0x10 [ 61.896859] ? oom_killer_disable+0x310/0x310 [ 61.901342] ? mutex_trylock+0x23a/0x2d0 [ 61.905395] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 61.910824] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 61.916713] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 61.921554] ? trace_hardirqs_on+0xd/0x10 [ 61.925721] ? warn_alloc+0x2b0/0x2b0 [ 61.929506] ? lock_downgrade+0x980/0x980 [ 61.933653] ? __lock_is_held+0xb6/0x140 [ 61.937724] ? find_get_entry+0x53c/0x9e0 [ 61.941893] ? __lock_acquire+0x664/0x3e00 [ 61.946161] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 61.952046] ? __might_sleep+0x95/0x190 [ 61.956011] __alloc_pages_nodemask+0x9fb/0xd80 [ 61.960675] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 61.965692] ? add_to_page_cache_lru+0x510/0x510 [ 61.970447] ? check_noncircular+0x20/0x20 [ 61.974662] ? check_noncircular+0x20/0x20 [ 61.978880] ? finish_task_switch+0x1d3/0x740 [ 61.983368] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 61.988142] alloc_pages_current+0xb6/0x1e0 [ 61.992454] __page_cache_alloc+0x334/0x500 [ 61.996771] ? rcu_read_lock_held+0xa9/0xc0 [ 62.001082] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 62.008444] filemap_fault+0xefc/0x1c20 [ 62.012401] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 62.017590] ? __lock_page_or_retry+0x4f0/0x4f0 [ 62.022256] ? filemap_map_pages+0x942/0x15d0 [ 62.026757] ? find_get_entries_tag+0xeb0/0xeb0 [ 62.031412] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 62.036587] ? _cond_resched+0x14/0x30 [ 62.040458] ? check_noncircular+0x20/0x20 [ 62.044675] ? refill_pi_state_cache.part.5+0x2f0/0x2f0 [ 62.050043] ? print_irqtrace_events+0x270/0x270 [ 62.054781] ? print_irqtrace_events+0x270/0x270 [ 62.059521] ? print_irqtrace_events+0x270/0x270 [ 62.064259] ? get_futex_value_locked+0xc3/0xf0 [ 62.068927] ? futex_wait_setup+0x22e/0x3d0 [ 62.073252] ? lock_acquire+0x1d5/0x580 [ 62.077204] ? lock_acquire+0x1d5/0x580 [ 62.081163] ? ext4_filemap_fault+0x7a/0xad [ 62.085469] ? __lock_acquire+0x664/0x3e00 [ 62.089693] ? lock_release+0xa40/0xa40 [ 62.093649] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 62.099525] ? rcu_note_context_switch+0x710/0x710 [ 62.104447] ? __might_sleep+0x95/0x190 [ 62.108410] ? down_read+0x96/0x150 [ 62.112016] ? ext4_filemap_fault+0x7a/0xad [ 62.116321] ? __down_interruptible+0x6b0/0x6b0 [ 62.120995] ext4_filemap_fault+0x82/0xad [ 62.125131] __do_fault+0xeb/0x30f [ 62.128659] ? pte_offset_kernel+0xc7/0xc7 [ 62.132881] ? do_raw_spin_trylock+0x190/0x190 [ 62.137452] ? check_noncircular+0x20/0x20 [ 62.141682] __handle_mm_fault+0x1d8f/0x3ce0 [ 62.146086] ? __pmd_alloc+0x4e0/0x4e0 [ 62.149968] ? find_held_lock+0x35/0x1d0 [ 62.154028] ? handle_mm_fault+0x248/0x8d0 [ 62.158250] ? lock_downgrade+0x980/0x980 [ 62.162424] handle_mm_fault+0x334/0x8d0 [ 62.166466] ? down_read_trylock+0xdb/0x170 [ 62.170771] ? __do_page_fault+0x32d/0xc90 [ 62.174993] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 62.179553] ? vmacache_find+0x5f/0x280 [ 62.183516] ? find_vma+0x30/0x150 [ 62.187046] __do_page_fault+0x5c9/0xc90 [ 62.191089] ? vfs_write+0x374/0x510 [ 62.194795] ? mm_fault_error+0x2c0/0x2c0 [ 62.198926] ? __lock_is_held+0xb6/0x140 [ 62.202983] do_page_fault+0xee/0x720 [ 62.206770] ? __do_page_fault+0xc90/0xc90 [ 62.210993] ? SyS_futex+0x269/0x390 [ 62.214697] ? do_futex+0x22a0/0x22a0 [ 62.218476] ? SyS_write+0x184/0x220 [ 62.222169] ? retint_kernel+0x10/0x10 [ 62.226040] ? retint_user+0x18/0x18 [ 62.229740] ? page_fault+0x36/0x60 [ 62.233351] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 62.238184] ? page_fault+0x36/0x60 [ 62.241805] page_fault+0x4c/0x60 [ 62.245240] RIP: 0033:0x7f2f9c22f3d8 [ 62.248928] RSP: 002b:00007f2f9a7d3cb0 EFLAGS: 00010202 [ 62.254271] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f2f9c22f344 [ 62.261524] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000002 [ 62.268773] RBP: 0000000000000000 R08: 000000000068fb80 R09: 0000000000000d10 [ 62.276026] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000447f18 [ 62.283286] R13: 000000000044421f R14: 0000000000447ee8 R15: 0000000000000003 [ 62.290693] Mem-Info: [ 62.296954] active_anon:3531 inactive_anon:62 isolated_anon:0 [ 62.296954] active_file:24 inactive_file:9 isolated_file:0 [ 62.296954] unevictable:0 dirty:6 writeback:0 unstable:0 [ 62.296954] slab_reclaimable:7265 slab_unreclaimable:82637 [ 62.296954] mapped:2 shmem:68 pagetables:306 bounce:0 [ 62.296954] free:24216 free_pcp:72 free_cma:0 [ 62.328972] Node 0 active_anon:14124kB inactive_anon:248kB active_file:96kB inactive_file:36kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:24kB writeback:0kB shmem:272kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 6144kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 62.355879] 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 [ 62.382042] lowmem_reserve[]: 0 2870 6381 6381 [ 62.386663] Node 0 DMA32 free:43904kB min:30332kB low:37912kB high:45492kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:12kB unevictable:0kB writepending:0kB present:3129332kB managed:2942352kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 62.423866] lowmem_reserve[]: 0 0 3510 3510 [ 62.428268] Node 0 Normal free:37052kB min:37084kB low:46352kB high:55620kB active_anon:14124kB inactive_anon:248kB active_file:96kB inactive_file:24kB unevictable:0kB writepending:24kB present:4718592kB managed:3594632kB mlocked:0kB kernel_stack:3040kB pagetables:1224kB bounce:0kB free_pcp:288kB local_pcp:252kB free_cma:0kB [ 62.457199] lowmem_reserve[]: 0 0 0 0 [ 62.461037] 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 [ 62.474684] Node 0 DMA32: 4*4kB (UME) 6*8kB (UME) 2*16kB (ME) 5*32kB (UME) 6*64kB (UME) 6*128kB (UME) 6*256kB (UME) 4*512kB (ME) 4*1024kB (UME) 3*2048kB (ME) 7*4096kB (M) = 43904kB [ 62.491038] Node 0 Normal: 399*4kB (UME) 370*8kB (UME) 265*16kB (UM) 167*32kB (M) 102*64kB (UM) 44*128kB (UM) 18*256kB (UM) 4*512kB (UM) 0*1024kB 2*2048kB (M) 0*4096kB = 37052kB [ 62.507128] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 62.515734] 101 total pagecache pages [ 62.525925] 0 pages in swap cache [ 62.529415] Swap cache stats: add 0, delete 0, find 0/0 [ 62.534792] Free swap = 0kB [ 62.537819] Total swap = 0kB [ 62.540845] 1965979 pages RAM [ 62.543957] 0 pages HighMem/MovableOnly [ 62.547940] 327756 pages reserved [ 62.551403] Unreclaimable slab info: [ 62.555125] Name Used Total [ 62.560674] hashtab_node 118KB 119KB [ 62.566048] ebitmap_node 382KB 385KB [ 62.571422] avtab_node 1012KB 1013KB [ 62.576806] TIPC 1KB 7KB [ 62.582217] SCTPv6 2KB 4KB [ 62.590188] DCCPv6 2KB 7KB [ 62.595577] DCCP 2KB 6KB [ 62.600943] fib6_nodes 0KB 4KB [ 62.606290] ip6_dst_cache 5KB 11KB [ 62.611636] RAWv6 9KB 19KB [ 62.616985] UDPv6 12KB 14KB [ 62.622335] TCPv6 2KB 5KB [ 62.627691] sd_ext_cdb 0KB 3KB [ 62.633038] scsi_sense_cache 219KB 224KB [ 62.638390] virtio_scsi_cmd 16KB 16KB [ 62.643752] sgpool-128 8KB 8KB [ 62.649105] sgpool-64 4KB 6KB [ 62.654451] sgpool-32 432KB 441KB [ 62.659803] sgpool-16 153KB 153KB [ 62.665157] sgpool-8 351KB 352KB [ 62.670502] cfq_io_cq 15KB 19KB [ 62.675851] cfq_queue 24KB 27KB [ 62.681197] mqueue_inode_cache 1KB 7KB [ 62.686632] nfs_commit_data 3KB 7KB [ 62.691978] nfs_write_data 34KB 37KB [ 62.699266] jbd2_inode 1KB 3KB [ 62.704670] ext4_system_zone 0KB 3KB [ 62.710058] bio-1 1KB 3KB [ 62.715442] rpc_buffers 17KB 19KB [ 62.720818] rpc_tasks 2KB 3KB [ 62.726196] UNIX 784KB 784KB [ 62.731581] tcp_bind_bucket 0KB 4KB [ 62.736960] ip_fib_trie 0KB 3KB [ 62.742335] ip_fib_alias 0KB 3KB [ 62.747709] ip_dst_cache 3KB 8KB [ 62.753157] RAW 5KB 7KB [ 62.758538] UDP 29KB 39KB [ 62.763920] TCP 7KB 7KB [ 62.769296] hugetlbfs_inode_cache 1KB 7KB [ 62.775037] eventpoll_pwq 10KB 11KB [ 62.780432] eventpoll_epi 18KB 23KB [ 62.785807] inotify_inode_mark 3KB 7KB [ 62.791270] request_queue 31KB 33KB [ 62.796648] blkdev_ioc 21KB 23KB [ 62.802037] bio-0 640KB 641KB [ 62.807412] biovec-(1<<(21-12)) 635KB 635KB [ 62.812962] biovec-64 685KB 693KB [ 62.818332] biovec-16 145KB 146KB [ 62.823707] bio_integrity_payload 0KB 4KB [ 62.829430] khugepaged_mm_slot 0KB 3KB [ 62.834899] uid_cache 0KB 3KB [ 62.840275] dmaengine-unmap-2 0KB 3KB [ 62.845658] audit_buffer 0KB 3KB [ 62.851051] skbuff_fclone_cache 129KB 131KB [ 62.856601] skbuff_head_cache 1699KB 1702KB [ 62.861977] configfs_dir_cache 0KB 4KB [ 62.867439] file_lock_cache 155KB 158KB [ 62.872814] file_lock_ctx 1KB 3KB [ 62.878188] fsnotify_mark_connector 2KB 3KB [ 62.884086] shmem_inode_cache 1041KB 1042KB [ 62.889460] task_delay_info 302KB 343KB [ 62.894837] sigqueue 348KB 354KB [ 62.900212] kernfs_node_cache 2156KB 2157KB [ 62.905587] mnt_cache 15KB 16KB [ 62.910963] filp 8240KB 8508KB [ 62.916338] names_cache 109841KB 109871KB [ 62.921717] avc_node 37KB 43KB [ 62.927094] selinux_file_security 416KB 453KB [ 62.932814] selinux_inode_security 1930KB 1936KB [ 62.938625] key_jar 3KB 7KB [ 62.943999] nsproxy 0KB 3KB [ 62.949402] vm_area_struct 17994KB 18009KB [ 62.954776] mm_struct 4309KB 4328KB [ 62.960147] fs_cache 403KB 440KB [ 62.965520] files_cache 1513KB 1518KB [ 62.970893] signal_cache 2417KB 2422KB [ 62.976272] sighand_cache 212KB 256KB [ 62.981649] task_struct 10320KB 10320KB [ 62.987035] cred_jar 2279KB 2288KB [ 62.992409] anon_vma_chain 7472KB 7485KB [ 62.997780] anon_vma 123KB 277KB [ 63.003154] pid 210KB 256KB [ 63.008527] Acpi-Operand 106KB 170KB [ 63.013905] Acpi-Namespace 19KB 23KB [ 63.019284] numa_policy 0KB 3KB [ 63.024659] debug_objects_cache 473KB 477KB [ 63.030206] trace_event_file 145KB 147KB [ 63.035582] ftrace_event_field 257KB 259KB [ 63.041041] pool_workqueue 22KB 24KB [ 63.046416] page->ptl 2966KB 2976KB [ 63.051817] kmalloc-262144 1032KB 1032KB [ 63.057192] kmalloc-131072 650KB 650KB [ 63.062560] kmalloc-65536 264KB 264KB [ 63.067932] kmalloc-32768 627KB 627KB [ 63.073311] kmalloc-16384 148KB 148KB [ 63.078686] kmalloc-8192 503KB 503KB [ 63.084065] kmalloc-4096 7131KB 7161KB [ 63.089441] kmalloc-2048 3130KB 3136KB [ 63.094817] kmalloc-1024 4921KB 4921KB [ 63.100191] kmalloc-512 2665KB 2906KB [ 63.105571] kmalloc-256 1936KB 2343KB [ 63.110962] kmalloc-128 394KB 523KB [ 63.116339] kmalloc-96 2172KB 2172KB [ 63.121716] kmalloc-64 2468KB 2468KB [ 63.127091] kmalloc-32 2385KB 2401KB [ 63.132470] kmalloc-192 905KB 908KB [ 63.137847] kmem_cache 100KB 101KB [ 63.143218] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 63.151840] [ 1774] 0 1774 5366 167 90112 0 -1000 udevd [ 63.160007] [ 3343] 0 3343 30682 222 118784 0 0 rsyslogd [ 63.168454] [ 3398] 0 3398 4725 50 86016 0 0 cron [ 63.176535] [ 3408] 0 3408 3736 45 69632 0 0 mcstransd [ 63.185045] [ 3444] 0 3444 12490 153 139264 0 -1000 sshd [ 63.193122] [ 3468] 0 3468 3694 39 77824 0 0 getty [ 63.201297] [ 3469] 0 3469 3694 41 77824 0 0 getty [ 63.209460] [ 3470] 0 3470 3694 39 73728 0 0 getty [ 63.217622] [ 3471] 0 3471 3694 39 81920 0 0 getty [ 63.225787] [ 3472] 0 3472 3694 40 73728 0 0 getty [ 63.233959] [ 3473] 0 3473 3694 41 73728 0 0 getty [ 63.242126] [ 3474] 0 3474 3649 41 81920 0 0 getty [ 63.250289] [ 3479] 0 3479 5681 454 86016 0 -1000 udevd [ 63.258454] [ 3480] 0 3480 5681 454 86016 0 -1000 udevd [ 63.266614] [ 3500] 0 3500 17821 197 184320 0 0 sshd [ 63.274692] [ 3502] 0 3502 280 1 32768 0 0 syzkaller146509 [ 63.283728] [ 3503] 0 3503 4375 0 32768 0 0 syzkaller146509 [ 63.292758] [ 3504] 0 3504 4375 0 32768 0 0 syzkaller146509 [ 63.301790] [ 3505] 0 3505 4375 0 32768 0 0 syzkaller146509 [ 63.310821] [ 3506] 0 3506 4375 0 32768 0 0 syzkaller146509 [ 63.319857] [ 3507] 0 3507 4375 0 32768 0 0 syzkaller146509 [ 63.328892] [ 3508] 0 3508 4375 523 36864 0 0 syzkaller146509 [ 63.337945] [ 3509] 0 3509 4375 523 36864 0 0 syzkaller146509 [ 63.346976] [ 3510] 0 3510 4375 523 36864 0 0 syzkaller146509 [ 63.356007] Out of memory: Kill process 3508 (syzkaller146509) score 0 or sacrifice child [ 63.364390] Killed process 3508 (syzkaller146509) total-vm:17500kB, anon-rss:2092kB, file-rss:0kB, shmem-rss:0kB [ 63.376680] oom_reaper: reaped process 3508 (syzkaller146509), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 63.418087] syzkaller146509 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 63.452728] syzkaller146509 cpuset=/ mems_allowed=0 [ 63.457822] CPU: 1 PID: 3510 Comm: syzkaller146509 Not tainted 4.15.0-rc7+ #184 [ 63.465253] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.474586] Call Trace: [ 63.477161] dump_stack+0x194/0x257 [ 63.480780] ? arch_local_irq_restore+0x53/0x53 [ 63.485433] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 63.490621] dump_header+0x28c/0xe1e [ 63.494329] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 63.499509] ? pagefault_out_of_memory+0x152/0x152 [ 63.504427] ? check_noncircular+0x20/0x20 [ 63.508655] ? print_irqtrace_events+0x270/0x270 [ 63.513401] ? __lock_acquire+0x664/0x3e00 [ 63.517623] ? check_noncircular+0x20/0x20 [ 63.521861] ? find_held_lock+0x35/0x1d0 [ 63.525918] ? check_noncircular+0x20/0x20 [ 63.530132] ? task_will_free_mem+0x252/0xaa0 [ 63.534621] ? print_irqtrace_events+0x270/0x270 [ 63.539374] ? ___ratelimit+0x30d/0x630 [ 63.543334] ? lock_downgrade+0x980/0x980 [ 63.547472] ? lock_release+0xa40/0xa40 [ 63.551438] ? mark_held_locks+0xaf/0x100 [ 63.555568] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 63.560656] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 63.565655] ? trace_hardirqs_on+0xd/0x10 [ 63.569793] ? ___ratelimit+0x95/0x630 [ 63.573665] ? idr_get_free_cmn+0xfd0/0xfd0 [ 63.577969] ? check_noncircular+0x20/0x20 [ 63.582182] ? find_held_lock+0x138/0x1d0 [ 63.586316] oom_kill_process+0x8b5/0x14a0 [ 63.590528] ? has_ns_capability_noaudit+0x163/0x2a0 [ 63.595601] ? lock_downgrade+0x980/0x980 [ 63.599721] ? oom_evaluate_task+0x480/0x480 [ 63.604108] ? security_capable_noaudit+0x8b/0xc0 [ 63.608922] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 63.613991] ? has_capability+0x30/0x30 [ 63.617938] ? do_raw_spin_trylock+0x190/0x190 [ 63.622490] ? check_noncircular+0x20/0x20 [ 63.626697] ? has_capability_noaudit+0x24/0x30 [ 63.631333] ? oom_badness+0xd1/0x980 [ 63.635106] ? lock_release+0xa40/0xa40 [ 63.639060] ? do_try_to_free_pages+0xc53/0x1020 [ 63.643790] ? find_lock_task_mm+0x460/0x460 [ 63.648170] ? find_held_lock+0x35/0x1d0 [ 63.652205] ? out_of_memory+0xb3a/0x1220 [ 63.656321] ? lock_downgrade+0x980/0x980 [ 63.660440] ? lock_release+0xa40/0xa40 [ 63.664381] ? lock_acquire+0x1d5/0x580 [ 63.668324] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 63.673226] ? oom_evaluate_task+0x284/0x480 [ 63.677605] out_of_memory+0x86d/0x1220 [ 63.681554] ? oom_killer_disable+0x310/0x310 [ 63.686028] ? mutex_trylock+0x23a/0x2d0 [ 63.690057] ? __lock_is_held+0xb6/0x140 [ 63.694085] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 63.699511] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 63.704344] ? warn_alloc+0x2b0/0x2b0 [ 63.708113] ? lock_release+0xa40/0xa40 [ 63.712065] ? print_irqtrace_events+0x270/0x270 [ 63.716800] ? mutex_spin_on_owner+0x446/0xb50 [ 63.721357] ? __lock_acquire+0x664/0x3e00 [ 63.725584] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 63.731447] ? lock_release+0xa40/0xa40 [ 63.735409] ? __lock_is_held+0xb6/0x140 [ 63.739451] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 63.745320] ? __might_sleep+0x95/0x190 [ 63.749267] __alloc_pages_nodemask+0x9fb/0xd80 [ 63.753908] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 63.758905] ? pcpu_chunk_refresh_hint+0x425/0x570 [ 63.763807] ? print_irqtrace_events+0x270/0x270 [ 63.768536] ? __lock_is_held+0xb6/0x140 [ 63.772573] ? find_next_bit+0x27/0x30 [ 63.776432] pcpu_populate_chunk+0x1b3/0x880 [ 63.780818] pcpu_alloc+0x978/0x10e0 [ 63.784516] ? pcpu_free_area+0xa00/0xa00 [ 63.788631] ? __pte_alloc_kernel+0x1bd/0x2a0 [ 63.793102] ? vmap_page_range_noflush+0x523/0x720 [ 63.798018] ? retint_kernel+0x10/0x10 [ 63.801877] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 63.806862] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 63.811607] ? retint_kernel+0x10/0x10 [ 63.815476] __alloc_percpu_gfp+0x27/0x30 [ 63.819593] array_map_alloc+0x68a/0x830 [ 63.823628] SyS_bpf+0x7f8/0x4420 [ 63.827049] ? check_noncircular+0x20/0x20 [ 63.831254] ? bpf_prog_get+0x20/0x20 [ 63.835033] ? perf_event_fork+0x30/0x30 [ 63.839070] ? __lock_is_held+0xb6/0x140 [ 63.843098] ? check_noncircular+0x20/0x20 [ 63.847310] ? __handle_mm_fault+0x80e/0x3ce0 [ 63.851784] ? check_noncircular+0x20/0x20 [ 63.855988] ? __pmd_alloc+0x4e0/0x4e0 [ 63.859844] ? vma_link+0xe9/0x170 [ 63.863357] ? find_held_lock+0x35/0x1d0 [ 63.867394] ? handle_mm_fault+0x248/0x8d0 [ 63.871611] ? find_held_lock+0x35/0x1d0 [ 63.875648] ? __do_page_fault+0x5f7/0xc90 [ 63.879854] ? lock_downgrade+0x980/0x980 [ 63.883978] ? handle_mm_fault+0x410/0x8d0 [ 63.888179] ? down_read_trylock+0xdb/0x170 [ 63.892465] ? __do_page_fault+0x32d/0xc90 [ 63.896667] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 63.901228] ? vmacache_find+0x5f/0x280 [ 63.905167] ? vmacache_update+0xfe/0x130 [ 63.909288] ? up_read+0x1a/0x40 [ 63.912623] ? __do_page_fault+0x3d6/0xc90 [ 63.916831] ? mm_fault_error+0x2c0/0x2c0 [ 63.920955] ? do_page_fault+0xee/0x720 [ 63.924900] ? __do_page_fault+0xc90/0xc90 [ 63.929114] ? SyS_mmap_pgoff+0x243/0x5f0 [ 63.933246] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 63.937979] entry_SYSCALL_64_fastpath+0x23/0x9a [ 63.942704] RIP: 0033:0x440139 [ 63.945859] RSP: 002b:00007fffea9d2488 EFLAGS: 00000217 ORIG_RAX: 0000000000000141 [ 63.953539] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 0000000000440139 [ 63.960783] RDX: 000000000000002c RSI: 0000000020c47fec RDI: 0000000000000000 [ 63.968025] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 63.975261] R10: 00000000ffffffff R11: 0000000000000217 R12: 00000000004016a0 [ 63.982498] R13: 0000000000401730 R14: 0000000000000000 R15: 0000000000000000 [ 63.989870] Mem-Info: [ 63.993082] active_anon:3014 inactive_anon:62 isolated_anon:0 [ 63.993082] active_file:14 inactive_file:13 isolated_file:0 [ 63.993082] unevictable:0 dirty:0 writeback:0 unstable:0 [ 63.993082] slab_reclaimable:7267 slab_unreclaimable:82657 [ 63.993082] mapped:2 shmem:68 pagetables:305 bounce:0 [ 63.993082] free:24277 free_pcp:0 free_cma:0 [ 64.025143] Node 0 active_anon:12056kB inactive_anon:248kB active_file:48kB inactive_file:84kB 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? no [ 64.051905] 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 [ 64.078060] lowmem_reserve[]: 0 2870 6381 6381 [ 64.082669] Node 0 DMA32 free:43904kB min:30332kB low:37912kB high:45492kB active_anon:0kB inactive_anon:0kB active_file:8kB inactive_file:4kB unevictable:0kB writepending:0kB present:3129332kB managed:2942352kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 64.109846] lowmem_reserve[]: 0 0 3510 3510 [ 64.114200] Node 0 Normal free:37152kB min:37084kB low:46352kB high:55620kB active_anon:12056kB inactive_anon:248kB active_file:48kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3594632kB mlocked:0kB kernel_stack:3040kB pagetables:1220kB bounce:0kB free_pcp:164kB local_pcp:0kB free_cma:0kB [ 64.143560] lowmem_reserve[]: 0 0 0 0 [ 64.147410] 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 [ 64.161071] Node 0 DMA32: 4*4kB (UME) 6*8kB (UME) 2*16kB (ME) 5*32kB (UME) 6*64kB (UME) 6*128kB (UME) 6*256kB (UME) 4*512kB (ME) 4*1024kB (UME) 3*2048kB (ME) 7*4096kB (M) = 43904kB [ 64.177370] Node 0 Normal: 412*4kB (UM) 364*8kB (UME) 266*16kB (UME) 171*32kB (UME) 104*64kB (UME) 45*128kB (UME) 19*256kB (UME) 5*512kB (UME) 1*1024kB (E) 1*2048kB (M) 0*4096kB = 37200kB [ 64.194267] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 64.202852] 105 total pagecache pages [ 64.206667] 0 pages in swap cache [ 64.210120] Swap cache stats: add 0, delete 0, find 0/0 [ 64.215483] Free swap = 0kB [ 64.218505] Total swap = 0kB [ 64.221527] 1965979 pages RAM [ 64.224623] 0 pages HighMem/MovableOnly [ 64.228597] 327756 pages reserved [ 64.232056] Unreclaimable slab info: [ 64.235773] Name Used Total [ 64.241323] hashtab_node 118KB 119KB [ 64.246707] ebitmap_node 382KB 385KB [ 64.252082] avtab_node 1012KB 1013KB [ 64.257465] TIPC 1KB 7KB [ 64.262857] SCTPv6 2KB 4KB [ 64.268236] DCCPv6 2KB 7KB [ 64.274434] DCCP 2KB 6KB [ 64.279847] fib6_nodes 0KB 4KB [ 64.285220] ip6_dst_cache 5KB 11KB [ 64.290599] RAWv6 9KB 19KB [ 64.295972] UDPv6 12KB 14KB [ 64.301343] TCPv6 2KB 5KB [ 64.306729] sd_ext_cdb 0KB 3KB [ 64.312109] scsi_sense_cache 228KB 228KB [ 64.317482] virtio_scsi_cmd 16KB 16KB [ 64.322858] sgpool-128 8KB 8KB [ 64.328228] sgpool-64 4KB 6KB [ 64.333596] sgpool-32 448KB 448KB [ 64.338982] sgpool-16 153KB 153KB [ 64.344359] sgpool-8 363KB 363KB [ 64.349733] cfq_io_cq 15KB 19KB [ 64.355167] cfq_queue 24KB 27KB [ 64.360540] mqueue_inode_cache 1KB 7KB [ 64.366005] nfs_commit_data 3KB 7KB [ 64.371406] nfs_write_data 34KB 37KB [ 64.376782] jbd2_inode 1KB 3KB [ 64.382153] ext4_system_zone 0KB 3KB [ 64.387531] bio-1 1KB 3KB [ 64.392910] rpc_buffers 17KB 19KB [ 64.398282] rpc_tasks 2KB 3KB [ 64.403655] UNIX 784KB 784KB [ 64.409827] tcp_bind_bucket 0KB 4KB [ 64.415205] ip_fib_trie 0KB 3KB [ 64.420593] ip_fib_alias 0KB 3KB [ 64.425966] ip_dst_cache 3KB 8KB [ 64.431342] RAW 5KB 7KB [ 64.436726] UDP 29KB 39KB [ 64.442105] TCP 7KB 7KB [ 64.447475] hugetlbfs_inode_cache 1KB 7KB [ 64.453194] eventpoll_pwq 10KB 11KB [ 64.458563] eventpoll_epi 18KB 23KB [ 64.463935] inotify_inode_mark 3KB 7KB [ 64.469409] request_queue 31KB 33KB [ 64.474780] blkdev_ioc 21KB 23KB [ 64.480149] bio-0 656KB 656KB [ 64.485520] biovec-(1<<(21-12)) 660KB 660KB [ 64.491068] biovec-64 700KB 700KB [ 64.496461] biovec-16 150KB 150KB [ 64.501836] bio_integrity_payload 0KB 4KB [ 64.507554] khugepaged_mm_slot 0KB 3KB [ 64.513040] uid_cache 0KB 3KB [ 64.518412] dmaengine-unmap-2 0KB 3KB [ 64.523784] audit_buffer 0KB 3KB [ 64.529157] skbuff_fclone_cache 129KB 131KB [ 64.534713] skbuff_head_cache 1699KB 1702KB [ 64.540860] configfs_dir_cache 0KB 4KB [ 64.546321] file_lock_cache 155KB 158KB [ 64.551691] file_lock_ctx 1KB 3KB [ 64.557061] fsnotify_mark_connector 2KB 3KB [ 64.562982] shmem_inode_cache 1041KB 1042KB [ 64.568353] task_delay_info 302KB 343KB [ 64.573722] sigqueue 347KB 354KB [ 64.579098] kernfs_node_cache 2156KB 2157KB [ 64.584468] mnt_cache 15KB 16KB [ 64.589841] filp 8240KB 8508KB [ 64.595210] names_cache 109854KB 109871KB [ 64.600581] avc_node 37KB 43KB [ 64.605951] selinux_file_security 416KB 453KB [ 64.611671] selinux_inode_security 1930KB 1936KB [ 64.617474] key_jar 3KB 7KB [ 64.622842] nsproxy 0KB 3KB [ 64.628212] vm_area_struct 17994KB 18009KB [ 64.633582] mm_struct 4309KB 4328KB [ 64.638954] fs_cache 403KB 440KB [ 64.644324] files_cache 1513KB 1518KB [ 64.649695] signal_cache 2417KB 2422KB [ 64.655071] sighand_cache 212KB 256KB [ 64.660441] task_struct 10320KB 10320KB [ 64.665828] cred_jar 2279KB 2288KB [ 64.671966] anon_vma_chain 7472KB 7485KB [ 64.677340] anon_vma 123KB 277KB [ 64.682710] pid 210KB 256KB [ 64.688087] Acpi-Operand 106KB 170KB [ 64.693460] Acpi-Namespace 19KB 23KB [ 64.698832] numa_policy 0KB 3KB [ 64.704202] debug_objects_cache 473KB 477KB [ 64.709750] trace_event_file 145KB 147KB [ 64.715122] ftrace_event_field 257KB 259KB [ 64.720578] pool_workqueue 22KB 24KB [ 64.725949] page->ptl 2966KB 2976KB [ 64.731352] kmalloc-262144 1032KB 1032KB [ 64.736770] kmalloc-131072 650KB 650KB [ 64.742141] kmalloc-65536 264KB 264KB [ 64.747516] kmalloc-32768 627KB 627KB [ 64.752887] kmalloc-16384 148KB 148KB [ 64.758256] kmalloc-8192 503KB 503KB [ 64.763625] kmalloc-4096 7131KB 7161KB [ 64.768998] kmalloc-2048 3130KB 3136KB [ 64.774369] kmalloc-1024 4953KB 4953KB [ 64.779738] kmalloc-512 2665KB 2906KB [ 64.785126] kmalloc-256 1935KB 2343KB [ 64.790498] kmalloc-128 394KB 523KB [ 64.795869] kmalloc-96 2180KB 2180KB [ 64.802036] kmalloc-64 2466KB 2468KB [ 64.807415] kmalloc-32 2383KB 2401KB [ 64.812785] kmalloc-192 904KB 908KB [ 64.818154] kmem_cache 100KB 101KB [ 64.823525] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 64.832134] [ 1774] 0 1774 5366 167 90112 0 -1000 udevd [ 64.840291] [ 3343] 0 3343 30682 223 118784 0 0 rsyslogd [ 64.848707] [ 3398] 0 3398 4725 50 86016 0 0 cron [ 64.856777] [ 3408] 0 3408 3736 45 69632 0 0 mcstransd [ 64.865294] [ 3444] 0 3444 12490 153 139264 0 -1000 sshd [ 64.873365] [ 3468] 0 3468 3694 39 77824 0 0 getty [ 64.881523] [ 3469] 0 3469 3694 41 77824 0 0 getty [ 64.889684] [ 3470] 0 3470 3694 39 73728 0 0 getty [ 64.897857] [ 3471] 0 3471 3694 39 81920 0 0 getty [ 64.906050] [ 3472] 0 3472 3694 40 73728 0 0 getty [ 64.914211] [ 3473] 0 3473 3694 41 73728 0 0 getty [ 64.922371] [ 3474] 0 3474 3649 41 81920 0 0 getty [ 64.930583] [ 3479] 0 3479 5681 454 86016 0 -1000 udevd [ 64.938744] [ 3480] 0 3480 5681 454 86016 0 -1000 udevd [ 64.946903] [ 3500] 0 3500 17821 197 184320 0 0 sshd [ 64.954975] [ 3502] 0 3502 280 1 32768 0 0 syzkaller146509 [ 64.964004] [ 3503] 0 3503 4375 0 32768 0 0 syzkaller146509 [ 64.973069] [ 3504] 0 3504 4375 0 32768 0 0 syzkaller146509 [ 64.982095] [ 3505] 0 3505 4375 0 32768 0 0 syzkaller146509 [ 64.991122] [ 3506] 0 3506 4375 0 32768 0 0 syzkaller146509 [ 65.000157] [ 3507] 0 3507 4375 0 32768 0 0 syzkaller146509 [ 65.009185] [ 3508] 0 3508 4375 0 32768 0 0 syzkaller146509 [ 65.018210] [ 3509] 0 3509 4375 523 36864 0 0 syzkaller146509 [ 65.027236] [ 3510] 0 3510 4375 523 36864 0 0 syzkaller146509 [ 65.036256] Out of memory: Kill process 3509 (syzkaller146509) score 0 or sacrifice child [ 65.045389] Killed process 3509 (syzkaller146509) total-vm:17500kB, anon-rss:2092kB, file-rss:0kB, shmem-rss:0kB [ 65.057685] oom_reaper: reaped process 3509 (syzkaller146509), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 65.071067] kworker/0:1 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 65.083152] kworker/0:1 cpuset=/ mems_allowed=0 [ 65.087930] CPU: 0 PID: 24 Comm: kworker/0:1 Not tainted 4.15.0-rc7+ #184 [ 65.094836] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 65.104177] Workqueue: events pcpu_balance_workfn [ 65.109000] Call Trace: [ 65.111575] dump_stack+0x194/0x257 [ 65.115192] ? arch_local_irq_restore+0x53/0x53 [ 65.119852] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 65.125039] dump_header+0x28c/0xe1e [ 65.128739] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 65.133912] ? pagefault_out_of_memory+0x152/0x152 [ 65.138818] ? check_noncircular+0x20/0x20 [ 65.143038] ? print_irqtrace_events+0x270/0x270 [ 65.147783] ? print_irqtrace_events+0x270/0x270 [ 65.152519] ? __lock_acquire+0x664/0x3e00 [ 65.156727] ? check_noncircular+0x20/0x20 [ 65.160939] ? find_held_lock+0x35/0x1d0 [ 65.164977] ? check_noncircular+0x20/0x20 [ 65.169202] ? task_will_free_mem+0x252/0xaa0 [ 65.173715] ? print_irqtrace_events+0x270/0x270 [ 65.178459] ? ___ratelimit+0x30d/0x630 [ 65.182404] ? lock_downgrade+0x980/0x980 [ 65.186527] ? lock_release+0xa40/0xa40 [ 65.190478] ? mark_held_locks+0xaf/0x100 [ 65.194600] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 65.199684] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 65.204678] ? trace_hardirqs_on+0xd/0x10 [ 65.208803] ? ___ratelimit+0x95/0x630 [ 65.212665] ? idr_get_free_cmn+0xfd0/0xfd0 [ 65.216958] ? check_noncircular+0x20/0x20 [ 65.221167] ? find_held_lock+0x138/0x1d0 [ 65.225314] oom_kill_process+0x8b5/0x14a0 [ 65.229541] ? has_ns_capability_noaudit+0x163/0x2a0 [ 65.234624] ? lock_downgrade+0x980/0x980 [ 65.238748] ? oom_evaluate_task+0x480/0x480 [ 65.243154] ? security_capable_noaudit+0x8b/0xc0 [ 65.247988] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 65.253076] ? has_capability+0x30/0x30 [ 65.257035] ? do_raw_spin_trylock+0x190/0x190 [ 65.261604] ? check_noncircular+0x20/0x20 [ 65.265834] ? has_capability_noaudit+0x24/0x30 [ 65.270481] ? oom_badness+0xd1/0x980 [ 65.274256] ? lock_release+0xa40/0xa40 [ 65.278208] ? do_try_to_free_pages+0xc53/0x1020 [ 65.282944] ? find_lock_task_mm+0x460/0x460 [ 65.287339] ? find_held_lock+0x35/0x1d0 [ 65.291400] ? out_of_memory+0xb3a/0x1220 [ 65.295543] ? lock_downgrade+0x980/0x980 [ 65.299679] ? lock_release+0xa40/0xa40 [ 65.303657] ? lock_acquire+0x1d5/0x580 [ 65.307615] ? blocking_notifier_call_chain+0x112/0x190 [ 65.312956] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 65.317876] ? oom_evaluate_task+0x284/0x480 [ 65.322278] out_of_memory+0x86d/0x1220 [ 65.326250] ? oom_killer_disable+0x310/0x310 [ 65.330723] ? mutex_trylock+0x23a/0x2d0 [ 65.334758] ? __lock_is_held+0xb6/0x140 [ 65.338800] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 65.344253] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 65.349130] ? warn_alloc+0x2b0/0x2b0 [ 65.352905] ? check_noncircular+0x20/0x20 [ 65.357132] ? print_irqtrace_events+0x270/0x270 [ 65.361885] ? find_held_lock+0x35/0x1d0 [ 65.365947] ? __mutex_lock+0x5bd/0x1a80 [ 65.370001] ? __lock_acquire+0x664/0x3e00 [ 65.374220] ? lock_release+0xa40/0xa40 [ 65.378183] ? memset+0x31/0x40 [ 65.381451] ? do_raw_spin_trylock+0x190/0x190 [ 65.386052] ? __lock_is_held+0xb6/0x140 [ 65.390119] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 65.396007] ? __might_sleep+0x95/0x190 [ 65.399975] __alloc_pages_nodemask+0x9fb/0xd80 [ 65.404629] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 65.409626] ? __lock_acquire+0x664/0x3e00 [ 65.413853] ? __lock_acquire+0x664/0x3e00 [ 65.418092] ? print_irqtrace_events+0x270/0x270 [ 65.422831] ? __lock_is_held+0xb6/0x140 [ 65.426874] ? find_next_bit+0x27/0x30 [ 65.430742] pcpu_populate_chunk+0x1b3/0x880 [ 65.435155] pcpu_balance_workfn+0xf3e/0x1520 [ 65.439643] ? check_noncircular+0x20/0x20 [ 65.443864] ? find_held_lock+0x35/0x1d0 [ 65.447927] ? pcpu_create_chunk+0x900/0x900 [ 65.452317] ? lock_release+0xa40/0xa40 [ 65.456273] ? check_noncircular+0x20/0x20 [ 65.460495] ? lock_acquire+0x1d5/0x580 [ 65.464437] ? lock_acquire+0x1d5/0x580 [ 65.468382] ? process_one_work+0xb01/0x1b10 [ 65.472776] ? __lock_is_held+0xb6/0x140 [ 65.476835] process_one_work+0xbbf/0x1b10 [ 65.481052] ? trace_hardirqs_on+0xd/0x10 [ 65.485205] ? pwq_dec_nr_in_flight+0x450/0x450 [ 65.489873] ? __schedule+0x8f3/0x2060 [ 65.493747] ? update_curr+0x2e3/0xa60 [ 65.497633] ? check_noncircular+0x20/0x20 [ 65.501853] ? __lock_is_held+0xb6/0x140 [ 65.506562] ? lock_acquire+0x1d5/0x580 [ 65.510505] ? lock_acquire+0x1d5/0x580 [ 65.514449] ? worker_thread+0x4a3/0x1990 [ 65.518568] ? lock_downgrade+0x980/0x980 [ 65.522689] ? lock_release+0xa40/0xa40 [ 65.526636] ? retint_kernel+0x10/0x10 [ 65.530497] ? do_raw_spin_trylock+0x190/0x190 [ 65.535079] worker_thread+0x223/0x1990 [ 65.539077] ? process_one_work+0x1b10/0x1b10 [ 65.543567] ? _raw_spin_unlock_irq+0x27/0x70 [ 65.548051] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 65.553051] ? trace_hardirqs_on+0xd/0x10 [ 65.557182] ? _raw_spin_unlock_irq+0x27/0x70 [ 65.561664] ? finish_task_switch+0x1d3/0x740 [ 65.566137] ? finish_task_switch+0x1aa/0x740 [ 65.570622] ? copy_overflow+0x20/0x20 [ 65.574497] ? __schedule+0x8f3/0x2060 [ 65.578377] ? find_held_lock+0x35/0x1d0 [ 65.582426] ? find_held_lock+0x35/0x1d0 [ 65.586475] ? complete+0x62/0x80 [ 65.589930] ? __schedule+0x2060/0x2060 [ 65.593887] ? do_wait_intr_irq+0x3e0/0x3e0 [ 65.598192] ? __lockdep_init_map+0xe4/0x650 [ 65.602579] ? do_raw_spin_trylock+0x190/0x190 [ 65.607142] ? lockdep_init_map+0x9/0x10 [ 65.611188] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 65.616280] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 65.621283] ? trace_hardirqs_on+0xd/0x10 [ 65.625414] ? __kthread_parkme+0x175/0x240 [ 65.629726] kthread+0x33c/0x400 [ 65.633076] ? process_one_work+0x1b10/0x1b10 [ 65.637551] ? kthread_stop+0x7a0/0x7a0 [ 65.641514] ret_from_fork+0x24/0x30 [ 65.645289] Mem-Info: [ 65.647723] active_anon:2498 inactive_anon:62 isolated_anon:0 [ 65.647723] active_file:23 inactive_file:5 isolated_file:0 [ 65.647723] unevictable:0 dirty:0 writeback:0 unstable:0 [ 65.647723] slab_reclaimable:7267 slab_unreclaimable:82658 [ 65.647723] mapped:2 shmem:68 pagetables:305 bounce:0 [ 65.647723] free:22254 free_pcp:31 free_cma:0 [ 65.679686] Node 0 active_anon:9992kB inactive_anon:248kB active_file:92kB inactive_file:20kB 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 [ 65.706407] 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 [ 65.732526] lowmem_reserve[]: 0 2870 6381 6381 [ 65.737136] Node 0 DMA32 free:43904kB min:30332kB low:37912kB high:45492kB active_anon:0kB inactive_anon:0kB active_file:8kB inactive_file:4kB unevictable:0kB writepending:0kB present:3129332kB managed:2942352kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 65.764321] lowmem_reserve[]: 0 0 3510 3510 [ 65.768650] Node 0 Normal free:29204kB min:37084kB low:46352kB high:55620kB active_anon:9992kB inactive_anon:248kB active_file:40kB inactive_file:68kB unevictable:0kB writepending:0kB present:4718592kB managed:3594632kB mlocked:0kB kernel_stack:3040kB pagetables:1220kB bounce:0kB free_pcp:124kB local_pcp:48kB free_cma:0kB [ 65.797300] lowmem_reserve[]: 0 0 0 0 [ 65.801140] 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 [ 65.814836] Node 0 DMA32: 4*4kB (UME) 6*8kB (UME) 2*16kB (ME) 5*32kB (UME) 6*64kB (UME) 6*128kB (UME) 6*256kB (UME) 4*512kB (ME) 4*1024kB (UME) 3*2048kB (ME) 7*4096kB (M) = 43904kB [ 65.831129] Node 0 Normal: 365*4kB (UM) 320*8kB (ME) 236*16kB (M) 159*32kB (M) 99*64kB (UM) 42*128kB (M) 16*256kB (M) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 29204kB [ 65.846267] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 65.854836] 105 total pagecache pages [ 65.858647] 0 pages in swap cache [ 65.862110] Swap cache stats: add 0, delete 0, find 0/0 [ 65.867472] Free swap = 0kB [ 65.870488] Total swap = 0kB [ 65.873500] 1965979 pages RAM [ 65.876603] 0 pages HighMem/MovableOnly [ 65.880586] 327756 pages reserved [ 65.884123] Unreclaimable slab info: [ 65.887931] Name Used Total [ 65.893503] hashtab_node 118KB 119KB [ 65.898858] ebitmap_node 382KB 385KB [ 65.904225] avtab_node 1012KB 1013KB [ 65.909591] TIPC 1KB 7KB [ 65.914964] SCTPv6 2KB 4KB [ 65.920341] DCCPv6 2KB 7KB [ 65.925707] DCCP 2KB 6KB [ 65.931098] fib6_nodes 0KB 4KB [ 65.936465] ip6_dst_cache 5KB 11KB [ 65.941822] RAWv6 9KB 19KB [ 65.947193] UDPv6 12KB 14KB [ 65.952556] TCPv6 2KB 5KB [ 65.957923] sd_ext_cdb 0KB 3KB [ 65.963292] scsi_sense_cache 228KB 228KB [ 65.968644] virtio_scsi_cmd 16KB 16KB [ 65.974003] sgpool-128 8KB 8KB [ 65.979385] sgpool-64 4KB 6KB [ 65.984750] sgpool-32 448KB 448KB [ 65.990125] sgpool-16 153KB 153KB [ 65.995485] sgpool-8 363KB 363KB [ 66.000857] cfq_io_cq 15KB 19KB [ 66.006233] cfq_queue 24KB 27KB [ 66.011594] mqueue_inode_cache 1KB 7KB [ 66.017050] nfs_commit_data 3KB 7KB [ 66.022404] nfs_write_data 34KB 37KB [ 66.027774] jbd2_inode 1KB 3KB [ 66.033146] ext4_system_zone 0KB 3KB [ 66.038515] bio-1 1KB 3KB [ 66.043891] rpc_buffers 17KB 19KB [ 66.049264] rpc_tasks 2KB 3KB [ 66.054629] UNIX 784KB 784KB [ 66.060003] tcp_bind_bucket 0KB 4KB [ 66.065400] ip_fib_trie 0KB 3KB [ 66.070842] ip_fib_alias 0KB 3KB [ 66.076215] ip_dst_cache 3KB 8KB [ 66.081576] RAW 5KB 7KB [ 66.086937] UDP 29KB 39KB [ 66.092305] TCP 7KB 7KB [ 66.097675] hugetlbfs_inode_cache 1KB 7KB [ 66.103402] eventpoll_pwq 10KB 11KB [ 66.108769] eventpoll_epi 18KB 23KB [ 66.114140] inotify_inode_mark 3KB 7KB [ 66.119586] request_queue 31KB 33KB [ 66.124941] blkdev_ioc 21KB 23KB [ 66.130300] bio-0 656KB 656KB [ 66.135667] biovec-(1<<(21-12)) 660KB 660KB [ 66.141216] biovec-64 700KB 700KB [ 66.146578] biovec-16 150KB 150KB [ 66.151946] bio_integrity_payload 0KB 4KB [ 66.157668] khugepaged_mm_slot 0KB 3KB [ 66.163134] uid_cache 0KB 3KB [ 66.168495] dmaengine-unmap-2 0KB 3KB [ 66.173861] audit_buffer 0KB 3KB [ 66.179235] skbuff_fclone_cache 129KB 131KB [ 66.184775] skbuff_head_cache 1699KB 1702KB [ 66.190147] configfs_dir_cache 0KB 4KB [ 66.195591] file_lock_cache 155KB 158KB [ 66.200955] file_lock_ctx 1KB 3KB [ 66.206312] fsnotify_mark_connector 2KB 3KB [ 66.212204] shmem_inode_cache 1041KB 1042KB [ 66.217563] task_delay_info 302KB 343KB [ 66.222921] sigqueue 347KB 354KB [ 66.228291] kernfs_node_cache 2156KB 2157KB [ 66.233648] mnt_cache 15KB 16KB [ 66.239007] filp 8240KB 8508KB [ 66.244391] names_cache 109854KB 109871KB [ 66.249774] avc_node 37KB 43KB [ 66.255146] selinux_file_security 416KB 453KB [ 66.260867] selinux_inode_security 1930KB 1936KB [ 66.266663] key_jar 3KB 7KB [ 66.272050] nsproxy 0KB 3KB [ 66.277414] vm_area_struct 17994KB 18009KB [ 66.282769] mm_struct 4309KB 4328KB [ 66.288136] fs_cache 403KB 440KB [ 66.293494] files_cache 1513KB 1518KB [ 66.298848] signal_cache 2417KB 2422KB [ 66.304218] sighand_cache 212KB 256KB [ 66.309575] task_struct 10320KB 10320KB [ 66.314932] cred_jar 2279KB 2288KB [ 66.320297] anon_vma_chain 7472KB 7485KB [ 66.325650] anon_vma 123KB 277KB [ 66.331033] pid 210KB 256KB [ 66.336397] Acpi-Operand 106KB 170KB [ 66.341770] Acpi-Namespace 19KB 23KB [ 66.347145] numa_policy 0KB 3KB [ 66.352507] debug_objects_cache 473KB 477KB [ 66.358047] trace_event_file 145KB 147KB [ 66.363407] ftrace_event_field 257KB 259KB [ 66.368848] pool_workqueue 22KB 24KB [ 66.374221] page->ptl 2966KB 2976KB [ 66.379591] kmalloc-262144 1032KB 1032KB [ 66.384942] kmalloc-131072 650KB 650KB [ 66.390303] kmalloc-65536 264KB 264KB [ 66.395683] kmalloc-32768 627KB 627KB [ 66.401056] kmalloc-16384 148KB 148KB [ 66.406422] kmalloc-8192 503KB 503KB [ 66.411790] kmalloc-4096 7131KB 7161KB [ 66.417166] kmalloc-2048 3130KB 3136KB [ 66.422529] kmalloc-1024 4953KB 4953KB [ 66.427894] kmalloc-512 2665KB 2906KB [ 66.433273] kmalloc-256 1935KB 2343KB [ 66.438647] kmalloc-128 394KB 523KB [ 66.444054] kmalloc-96 2180KB 2180KB [ 66.449420] kmalloc-64 2472KB 2472KB [ 66.454774] kmalloc-32 2383KB 2401KB [ 66.460214] kmalloc-192 908KB 908KB [ 66.465573] kmem_cache 100KB 101KB [ 66.470937] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 66.479627] [ 1774] 0 1774 5366 167 90112 0 -1000 udevd [ 66.487877] [ 3343] 0 3343 30682 223 118784 0 0 rsyslogd [ 66.496297] [ 3398] 0 3398 4725 50 86016 0 0 cron [ 66.504353] [ 3408] 0 3408 3736 45 69632 0 0 mcstransd [ 66.512859] [ 3444] 0 3444 12490 153 139264 0 -1000 sshd [ 66.520938] [ 3468] 0 3468 3694 39 77824 0 0 getty [ 66.529104] [ 3469] 0 3469 3694 41 77824 0 0 getty [ 66.537250] [ 3470] 0 3470 3694 39 73728 0 0 getty [ 66.545452] [ 3471] 0 3471 3694 39 81920 0 0 getty [ 66.553629] [ 3472] 0 3472 3694 40 73728 0 0 getty [ 66.561794] [ 3473] 0 3473 3694 41 73728 0 0 getty [ 66.569957] [ 3474] 0 3474 3649 41 81920 0 0 getty [ 66.578128] [ 3479] 0 3479 5681 454 86016 0 -1000 udevd [ 66.586276] [ 3480] 0 3480 5681 454 86016 0 -1000 udevd [ 66.594440] [ 3500] 0 3500 17821 197 184320 0 0 sshd [ 66.602521] [ 3502] 0 3502 280 1 32768 0 0 syzkaller146509 [ 66.611540] [ 3503] 0 3503 4375 0 32768 0 0 syzkaller146509 [ 66.620567] [ 3504] 0 3504 4375 0 32768 0 0 syzkaller146509 [ 66.629586] [ 3505] 0 3505 4375 0 32768 0 0 syzkaller146509 [ 66.638613] [ 3506] 0 3506 4375 0 32768 0 0 syzkaller146509 [ 66.647629] [ 3507] 0 3507 4375 0 32768 0 0 syzkaller146509 [ 66.656657] [ 3508] 0 3508 4375 0 32768 0 0 syzkaller146509 [ 66.665693] [ 3509] 0 3509 4375 0 32768 0 0 syzkaller146509 [ 66.674720] [ 3510] 0 3510 4375 523 36864 0 0 syzkaller146509 [ 66.683733] Out of memory: Kill process 3510 (syzkaller146509) score 0 or sacrifice child [ 66.692311] Killed process 3510 (syzkaller146509) total-vm:17500kB, anon-rss:2092kB, file-rss:0kB, shmem-rss:0kB [ 66.705900] oom_reaper: reaped process 3510 (syzkaller146509), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 66.717542] kworker/0:1 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 66.729663] kworker/0:1 cpuset=/ mems_allowed=0 [ 66.734380] CPU: 0 PID: 24 Comm: kworker/0:1 Not tainted 4.15.0-rc7+ #184 [ 66.741289] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.750633] Workqueue: events pcpu_balance_workfn [ 66.755456] Call Trace: [ 66.758025] dump_stack+0x194/0x257 [ 66.761637] ? arch_local_irq_restore+0x53/0x53 [ 66.766290] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 66.771478] dump_header+0x28c/0xe1e [ 66.775185] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 66.780371] ? pagefault_out_of_memory+0x152/0x152 [ 66.785284] ? check_noncircular+0x20/0x20 [ 66.789496] ? print_irqtrace_events+0x270/0x270 [ 66.794239] ? __lock_acquire+0x664/0x3e00 [ 66.798463] ? check_noncircular+0x20/0x20 [ 66.802693] ? print_irqtrace_events+0x270/0x270 [ 66.807435] ? check_noncircular+0x20/0x20 [ 66.811642] ? task_will_free_mem+0x252/0xaa0 [ 66.816124] ? print_irqtrace_events+0x270/0x270 [ 66.820881] ? ___ratelimit+0x30d/0x630 [ 66.824842] ? lock_downgrade+0x980/0x980 [ 66.828982] ? lock_release+0xa40/0xa40 [ 66.832951] ? mark_held_locks+0xaf/0x100 [ 66.837085] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 66.842174] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 66.847176] ? trace_hardirqs_on+0xd/0x10 [ 66.851315] ? ___ratelimit+0x95/0x630 [ 66.855185] ? idr_get_free_cmn+0xfd0/0xfd0 [ 66.859484] ? check_noncircular+0x20/0x20 [ 66.863689] ? find_held_lock+0x138/0x1d0 [ 66.867818] oom_kill_process+0x8b5/0x14a0 [ 66.872040] ? has_ns_capability_noaudit+0x163/0x2a0 [ 66.877133] ? check_noncircular+0x20/0x20 [ 66.881355] ? oom_evaluate_task+0x480/0x480 [ 66.885748] ? security_capable_noaudit+0x8b/0xc0 [ 66.890583] ? find_held_lock+0x35/0x1d0 [ 66.894650] ? check_noncircular+0x20/0x20 [ 66.898872] ? oom_unkillable_task+0x394/0x4c0 [ 66.903425] ? lock_downgrade+0x980/0x980 [ 66.907548] ? lock_release+0xa40/0xa40 [ 66.911488] ? do_try_to_free_pages+0xc53/0x1020 [ 66.916213] ? find_lock_task_mm+0x460/0x460 [ 66.920598] ? find_held_lock+0x35/0x1d0 [ 66.924631] ? out_of_memory+0xb3a/0x1220 [ 66.928748] ? lock_downgrade+0x980/0x980 [ 66.932867] ? lock_release+0xa40/0xa40 [ 66.936808] ? lock_acquire+0x1d5/0x580 [ 66.940750] ? blocking_notifier_call_chain+0x112/0x190 [ 66.946082] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 66.950985] ? oom_evaluate_task+0x284/0x480 [ 66.955365] out_of_memory+0x86d/0x1220 [ 66.959314] ? oom_killer_disable+0x310/0x310 [ 66.963776] ? mutex_trylock+0x23a/0x2d0 [ 66.967805] ? __lock_is_held+0xb6/0x140 [ 66.971834] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 66.977270] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 66.982110] ? warn_alloc+0x2b0/0x2b0 [ 66.985877] ? check_noncircular+0x20/0x20 [ 66.990084] ? print_irqtrace_events+0x270/0x270 [ 66.994812] ? find_held_lock+0x35/0x1d0 [ 66.998849] ? __mutex_lock+0x5bd/0x1a80 [ 67.002881] ? __lock_acquire+0x664/0x3e00 [ 67.007089] ? lock_release+0xa40/0xa40 [ 67.011032] ? memset+0x31/0x40 [ 67.014280] ? do_raw_spin_trylock+0x190/0x190 [ 67.018846] ? __lock_is_held+0xb6/0x140 [ 67.022888] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 67.028750] ? __might_sleep+0x95/0x190 [ 67.032696] __alloc_pages_nodemask+0x9fb/0xd80 [ 67.037342] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 67.042325] ? __lock_acquire+0x664/0x3e00 [ 67.046533] ? __lock_acquire+0x664/0x3e00 [ 67.050740] ? print_irqtrace_events+0x270/0x270 [ 67.055468] ? __lock_is_held+0xb6/0x140 [ 67.059507] ? find_next_bit+0x27/0x30 [ 67.063372] pcpu_populate_chunk+0x1b3/0x880 [ 67.067760] pcpu_balance_workfn+0xf3e/0x1520 [ 67.072227] ? check_noncircular+0x20/0x20 [ 67.076429] ? find_held_lock+0x35/0x1d0 [ 67.080468] ? pcpu_create_chunk+0x900/0x900 [ 67.084847] ? lock_release+0xa40/0xa40 [ 67.088789] ? check_noncircular+0x20/0x20 [ 67.092997] ? lock_acquire+0x1d5/0x580 [ 67.096940] ? lock_acquire+0x1d5/0x580 [ 67.100881] ? process_one_work+0xb01/0x1b10 [ 67.105266] ? __lock_is_held+0xb6/0x140 [ 67.109310] process_one_work+0xbbf/0x1b10 [ 67.113518] ? trace_hardirqs_on+0xd/0x10 [ 67.117645] ? pwq_dec_nr_in_flight+0x450/0x450 [ 67.122290] ? __schedule+0x8f3/0x2060 [ 67.126146] ? update_curr+0x2e3/0xa60 [ 67.130018] ? check_noncircular+0x20/0x20 [ 67.134229] ? __lock_is_held+0xb6/0x140 [ 67.138282] ? lock_acquire+0x1d5/0x580 [ 67.142223] ? lock_acquire+0x1d5/0x580 [ 67.146165] ? worker_thread+0x4a3/0x1990 [ 67.150282] ? lock_downgrade+0x980/0x980 [ 67.154401] ? lock_release+0xa40/0xa40 [ 67.158355] ? retint_kernel+0x10/0x10 [ 67.162213] ? do_raw_spin_trylock+0x190/0x190 [ 67.166773] worker_thread+0x223/0x1990 [ 67.170734] ? process_one_work+0x1b10/0x1b10 [ 67.175203] ? _raw_spin_unlock_irq+0x27/0x70 [ 67.179671] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 67.184662] ? trace_hardirqs_on+0xd/0x10 [ 67.188780] ? _raw_spin_unlock_irq+0x27/0x70 [ 67.193245] ? finish_task_switch+0x1d3/0x740 [ 67.197705] ? finish_task_switch+0x1aa/0x740 [ 67.202171] ? copy_overflow+0x20/0x20 [ 67.206044] ? __schedule+0x8f3/0x2060 [ 67.209921] ? find_held_lock+0x35/0x1d0 [ 67.213956] ? find_held_lock+0x35/0x1d0 [ 67.217993] ? complete+0x62/0x80 [ 67.221428] ? __schedule+0x2060/0x2060 [ 67.225365] ? do_wait_intr_irq+0x3e0/0x3e0 [ 67.229654] ? __lockdep_init_map+0xe4/0x650 [ 67.234032] ? do_raw_spin_trylock+0x190/0x190 [ 67.238583] ? lockdep_init_map+0x9/0x10 [ 67.242612] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 67.247685] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 67.252669] ? trace_hardirqs_on+0xd/0x10 [ 67.256784] ? __kthread_parkme+0x175/0x240 [ 67.261076] kthread+0x33c/0x400 [ 67.264409] ? process_one_work+0x1b10/0x1b10 [ 67.268868] ? kthread_stop+0x7a0/0x7a0 [ 67.272812] ret_from_fork+0x24/0x30 [ 67.276567] Mem-Info: [ 67.279008] active_anon:1981 inactive_anon:62 isolated_anon:0 [ 67.279008] active_file:39 inactive_file:0 isolated_file:0 [ 67.279008] unevictable:0 dirty:0 writeback:0 unstable:0 [ 67.279008] slab_reclaimable:7270 slab_unreclaimable:82673 [ 67.279008] mapped:2 shmem:68 pagetables:304 bounce:0 [ 67.279008] free:22766 free_pcp:52 free_cma:0 [ 67.310978] Node 0 active_anon:7924kB inactive_anon:248kB active_file:156kB 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 [ 67.337704] 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 [ 67.363824] lowmem_reserve[]: 0 2870 6381 6381 [ 67.368419] Node 0 DMA32 free:43904kB min:30332kB low:37912kB high:45492kB active_anon:0kB inactive_anon:0kB active_file:4kB inactive_file:8kB unevictable:0kB writepending:0kB present:3129332kB managed:2942352kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 67.395589] lowmem_reserve[]: 0 0 3510 3510 [ 67.399920] Node 0 Normal free:31252kB min:37084kB low:46352kB high:55620kB active_anon:7924kB inactive_anon:248kB active_file:152kB inactive_file:0kB unevictable:0kB writepending:0kB present:4718592kB managed:3594632kB mlocked:0kB kernel_stack:3040kB pagetables:1216kB bounce:0kB free_pcp:208kB local_pcp:48kB free_cma:0kB [ 67.428558] lowmem_reserve[]: 0 0 0 0 [ 67.432369] 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 [ 67.445955] Node 0 DMA32: 4*4kB (UME) 6*8kB (UME) 2*16kB (ME) 5*32kB (UME) 6*64kB (UME) 6*128kB (UME) 6*256kB (UME) 4*512kB (ME) 4*1024kB (UME) 3*2048kB (ME) 7*4096kB (M) = 43904kB [ 67.462304] Node 0 Normal: 365*4kB (UM) 322*8kB (UME) 236*16kB (M) 159*32kB (M) 99*64kB (UM) 42*128kB (M) 16*256kB (M) 1*512kB (U) 0*1024kB 1*2048kB (M) 0*4096kB = 31268kB [ 67.477861] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 67.486443] 95 total pagecache pages [ 67.490172] 0 pages in swap cache [ 67.493631] Swap cache stats: add 0, delete 0, find 0/0 [ 67.498993] Free swap = 0kB [ 67.502043] Total swap = 0kB [ 67.505759] 1965979 pages RAM [ 67.508860] 0 pages HighMem/MovableOnly [ 67.512839] 327756 pages reserved [ 67.516298] Unreclaimable slab info: [ 67.520034] Name Used Total [ 67.525569] hashtab_node 118KB 119KB [ 67.530937] ebitmap_node 382KB 385KB [ 67.536318] avtab_node 1012KB 1013KB [ 67.541685] TIPC 1KB 7KB [ 67.547061] SCTPv6 2KB 4KB [ 67.552434] DCCPv6 2KB 7KB [ 67.557794] DCCP 2KB 6KB [ 67.563182] fib6_nodes 0KB 4KB [ 67.568541] ip6_dst_cache 11KB 11KB [ 67.573898] RAWv6 9KB 19KB [ 67.579268] UDPv6 12KB 14KB [ 67.584625] TCPv6 2KB 5KB [ 67.589992] sd_ext_cdb 0KB 3KB [ 67.595352] scsi_sense_cache 228KB 228KB [ 67.600719] virtio_scsi_cmd 16KB 16KB [ 67.606113] sgpool-128 8KB 8KB [ 67.611475] sgpool-64 4KB 6KB [ 67.616846] sgpool-32 448KB 448KB [ 67.622219] sgpool-16 153KB 153KB [ 67.627582] sgpool-8 363KB 363KB [ 67.632949] cfq_io_cq 15KB 19KB [ 67.638324] cfq_queue 24KB 27KB [ 67.643684] mqueue_inode_cache 1KB 7KB [ 67.649139] nfs_commit_data 3KB 7KB [ 67.654498] nfs_write_data 34KB 37KB [ 67.659854] jbd2_inode 1KB 3KB [ 67.665224] ext4_system_zone 0KB 3KB [ 67.670688] bio-1 1KB 3KB [ 67.676063] rpc_buffers 17KB 19KB [ 67.681426] rpc_tasks 2KB 3KB [ 67.686801] UNIX 784KB 784KB [ 67.692311] tcp_bind_bucket 0KB 4KB [ 67.697684] ip_fib_trie 0KB 3KB [ 67.703053] ip_fib_alias 0KB 3KB [ 67.708410] ip_dst_cache 3KB 8KB [ 67.713784] RAW 5KB 7KB [ 67.719242] UDP 29KB 39KB [ 67.724608] TCP 7KB 7KB [ 67.729976] hugetlbfs_inode_cache 1KB 7KB [ 67.735690] eventpoll_pwq 10KB 11KB [ 67.741063] eventpoll_epi 18KB 23KB [ 67.746447] inotify_inode_mark 3KB 7KB [ 67.751890] request_queue 31KB 33KB [ 67.757259] blkdev_ioc 21KB 23KB [ 67.762621] bio-0 656KB 656KB [ 67.767974] biovec-(1<<(21-12)) 660KB 660KB [ 67.773500] biovec-64 700KB 700KB [ 67.778868] biovec-16 150KB 150KB [ 67.784244] bio_integrity_payload 0KB 4KB [ 67.789955] khugepaged_mm_slot 0KB 3KB [ 67.795415] uid_cache 0KB 3KB [ 67.800787] dmaengine-unmap-2 0KB 3KB [ 67.806161] audit_buffer 0KB 3KB [ 67.811522] skbuff_fclone_cache 129KB 131KB [ 67.817072] skbuff_head_cache 1702KB 1702KB [ 67.822437] configfs_dir_cache 0KB 4KB [ 67.827896] file_lock_cache 155KB 158KB [ 67.833275] file_lock_ctx 1KB 3KB [ 67.838634] fsnotify_mark_connector 2KB 3KB [ 67.844512] shmem_inode_cache 1041KB 1042KB [ 67.849880] task_delay_info 302KB 343KB [ 67.855259] sigqueue 347KB 354KB [ 67.860619] kernfs_node_cache 2156KB 2157KB [ 67.865986] mnt_cache 15KB 16KB [ 67.871363] filp 8211KB 8475KB [ 67.876727] names_cache 109854KB 109871KB [ 67.882100] avc_node 37KB 43KB [ 67.887458] selinux_file_security 413KB 453KB [ 67.893175] selinux_inode_security 1930KB 1936KB [ 67.898970] key_jar 3KB 7KB [ 67.904326] nsproxy 0KB 3KB [ 67.909696] vm_area_struct 17989KB 18009KB [ 67.915071] mm_struct 4309KB 4328KB [ 67.920432] fs_cache 403KB 440KB [ 67.925800] files_cache 1513KB 1518KB [ 67.931172] signal_cache 2417KB 2422KB [ 67.936533] sighand_cache 212KB 256KB [ 67.941899] task_struct 10320KB 10320KB [ 67.947298] cred_jar 2279KB 2288KB [ 67.952668] anon_vma_chain 7472KB 7485KB [ 67.958035] anon_vma 121KB 277KB [ 67.963399] pid 210KB 256KB [ 67.968756] Acpi-Operand 106KB 170KB [ 67.974145] Acpi-Namespace 19KB 23KB [ 67.979520] numa_policy 0KB 3KB [ 67.984878] debug_objects_cache 473KB 477KB [ 67.990406] trace_event_file 145KB 147KB [ 67.995776] ftrace_event_field 257KB 259KB [ 68.001243] pool_workqueue 22KB 24KB [ 68.006607] page->ptl 2966KB 2976KB [ 68.012004] kmalloc-262144 1032KB 1032KB [ 68.017389] kmalloc-131072 650KB 650KB [ 68.022743] kmalloc-65536 264KB 264KB [ 68.028114] kmalloc-32768 627KB 627KB [ 68.033473] kmalloc-16384 148KB 148KB [ 68.038826] kmalloc-8192 503KB 503KB [ 68.044198] kmalloc-4096 7131KB 7152KB [ 68.049557] kmalloc-2048 3130KB 3136KB [ 68.054911] kmalloc-1024 4953KB 4953KB [ 68.060282] kmalloc-512 2675KB 2906KB [ 68.065645] kmalloc-256 1921KB 2325KB [ 68.071004] kmalloc-128 394KB 523KB [ 68.076392] kmalloc-96 2180KB 2180KB [ 68.081758] kmalloc-64 2472KB 2472KB [ 68.087131] kmalloc-32 2383KB 2401KB [ 68.092496] kmalloc-192 908KB 908KB [ 68.097865] kmem_cache 100KB 101KB [ 68.103242] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 68.111861] [ 1774] 0 1774 5366 167 90112 0 -1000 udevd [ 68.120055] [ 3343] 0 3343 30682 223 118784 0 0 rsyslogd [ 68.128470] [ 3398] 0 3398 4725 50 86016 0 0 cron [ 68.136542] [ 3408] 0 3408 3736 45 69632 0 0 mcstransd [ 68.145055] [ 3444] 0 3444 12490 153 139264 0 -1000 sshd [ 68.153120] [ 3468] 0 3468 3694 39 77824 0 0 getty [ 68.161280] [ 3469] 0 3469 3694 41 77824 0 0 getty [ 68.169445] [ 3470] 0 3470 3694 39 73728 0 0 getty [ 68.177607] [ 3471] 0 3471 3694 39 81920 0 0 getty [ 68.185765] [ 3472] 0 3472 3694 40 73728 0 0 getty [ 68.193927] [ 3473] 0 3473 3694 41 73728 0 0 getty [ 68.202092] [ 3474] 0 3474 3649 41 81920 0 0 getty [ 68.210248] [ 3479] 0 3479 5681 454 86016 0 -1000 udevd [ 68.218407] [ 3480] 0 3480 5681 454 86016 0 -1000 udevd [ 68.226574] [ 3500] 0 3500 17821 197 184320 0 0 sshd [ 68.234650] [ 3502] 0 3502 280 1 32768 0 0 syzkaller146509 [ 68.243666] [ 3503] 0 3503 4375 0 32768 0 0 syzkaller146509 [ 68.252691] [ 3504] 0 3504 4375 0 32768 0 0 syzkaller146509 [ 68.261707] [ 3505] 0 3505 4375 0 32768 0 0 syzkaller146509 [ 68.270732] [ 3506] 0 3506 4375 0 32768 0 0 syzkaller146509 [ 68.279752] [ 3507] 0 3507 4375 0 32768 0 0 syzkaller146509 [ 68.288785] [ 3508] 0 3508 4375 0 32768 0 0 syzkaller146509 [ 68.297802] [ 3509] 0 3509 4375 0 32768 0 0 syzkaller146509 [ 68.306827] [ 3510] 0 3510 4375 0 32768 0 0 syzkaller146509 [ 68.315838] Out of memory: Kill process 3343 (rsyslogd) score 0 or sacrifice child [ 68.323820] Killed process 3343 (rsyslogd) total-vm:122728kB, anon-rss:892kB, file-rss:0kB, shmem-rss:0kB [ 68.334383] rsyslogd (3347) used greatest stack depth: 14128 bytes left [ 68.344336] kworker/0:1 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 68.356345] kworker/0:1 cpuset=/ mems_allowed=0 [ 68.361149] CPU: 0 PID: 24 Comm: kworker/0:1 Not tainted 4.15.0-rc7+ #184 [ 68.368058] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 68.377404] Workqueue: events pcpu_balance_workfn [ 68.382227] Call Trace: [ 68.384788] dump_stack+0x194/0x257 [ 68.388393] ? arch_local_irq_restore+0x53/0x53 [ 68.393044] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 68.398241] dump_header+0x28c/0xe1e [ 68.401955] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 68.407129] ? pagefault_out_of_memory+0x152/0x152 [ 68.412048] ? check_noncircular+0x20/0x20 [ 68.416277] ? print_irqtrace_events+0x270/0x270 [ 68.421029] ? __lock_acquire+0x664/0x3e00 [ 68.425243] ? _raw_spin_unlock_irq+0x27/0x70 [ 68.429714] ? check_noncircular+0x20/0x20 [ 68.433927] ? print_irqtrace_events+0x270/0x270 [ 68.438676] ? check_noncircular+0x20/0x20 [ 68.442889] ? task_will_free_mem+0x252/0xaa0 [ 68.447372] ? print_irqtrace_events+0x270/0x270 [ 68.452124] ? ___ratelimit+0x30d/0x630 [ 68.456088] ? lock_downgrade+0x980/0x980 [ 68.460240] ? lock_release+0xa40/0xa40 [ 68.464218] ? mark_held_locks+0xaf/0x100 [ 68.468357] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 68.473452] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 68.478452] ? trace_hardirqs_on+0xd/0x10 [ 68.482592] ? ___ratelimit+0x95/0x630 [ 68.486469] ? idr_get_free_cmn+0xfd0/0xfd0 [ 68.490780] ? check_noncircular+0x20/0x20 [ 68.494986] ? find_held_lock+0x138/0x1d0 [ 68.499114] oom_kill_process+0x8b5/0x14a0 [ 68.503325] ? has_ns_capability_noaudit+0x163/0x2a0 [ 68.508411] ? check_noncircular+0x20/0x20 [ 68.512635] ? oom_evaluate_task+0x480/0x480 [ 68.517048] ? security_capable_noaudit+0x8b/0xc0 [ 68.521872] ? find_held_lock+0x35/0x1d0 [ 68.525908] ? check_noncircular+0x20/0x20 [ 68.530124] ? oom_unkillable_task+0x394/0x4c0 [ 68.534692] ? lock_downgrade+0x980/0x980 [ 68.538820] ? lock_release+0xa40/0xa40 [ 68.542769] ? find_lock_task_mm+0x460/0x460 [ 68.547154] ? find_held_lock+0x35/0x1d0 [ 68.551198] ? out_of_memory+0xb3a/0x1220 [ 68.555320] ? lock_downgrade+0x980/0x980 [ 68.559446] ? lock_release+0xa40/0xa40 [ 68.563390] ? lock_acquire+0x1d5/0x580 [ 68.567336] ? blocking_notifier_call_chain+0x112/0x190 [ 68.572677] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 68.577595] ? oom_evaluate_task+0x284/0x480 [ 68.581982] out_of_memory+0x86d/0x1220 [ 68.585939] ? find_next_bit+0x27/0x30 [ 68.589806] ? oom_killer_disable+0x310/0x310 [ 68.594282] ? mutex_trylock+0x23a/0x2d0 [ 68.598330] ? __lock_is_held+0xb6/0x140 [ 68.602377] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 68.607818] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 68.612690] ? warn_alloc+0x2b0/0x2b0 [ 68.616483] ? check_noncircular+0x20/0x20 [ 68.620719] ? print_irqtrace_events+0x270/0x270 [ 68.625483] ? find_held_lock+0x35/0x1d0 [ 68.629527] ? __mutex_lock+0x5bd/0x1a80 [ 68.633566] ? __lock_acquire+0x664/0x3e00 [ 68.637772] ? lock_release+0xa40/0xa40 [ 68.641719] ? memset+0x31/0x40 [ 68.644976] ? do_raw_spin_trylock+0x190/0x190 [ 68.649547] ? __lock_is_held+0xb6/0x140 [ 68.653595] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 68.659468] ? __might_sleep+0x95/0x190 [ 68.663422] __alloc_pages_nodemask+0x9fb/0xd80 [ 68.668085] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 68.673082] ? __lock_acquire+0x664/0x3e00 [ 68.677295] ? __lock_acquire+0x664/0x3e00 [ 68.681507] ? print_irqtrace_events+0x270/0x270 [ 68.686254] ? __lock_is_held+0xb6/0x140 [ 68.690316] ? find_next_bit+0x27/0x30 [ 68.694204] pcpu_populate_chunk+0x1b3/0x880 [ 68.698620] pcpu_balance_workfn+0xf3e/0x1520 [ 68.703102] ? check_noncircular+0x20/0x20 [ 68.707316] ? find_held_lock+0x35/0x1d0 [ 68.711374] ? pcpu_create_chunk+0x900/0x900 [ 68.715758] ? lock_release+0xa40/0xa40 [ 68.719710] ? check_noncircular+0x20/0x20 [ 68.723927] ? lock_acquire+0x1d5/0x580 [ 68.727874] ? lock_acquire+0x1d5/0x580 [ 68.731821] ? process_one_work+0xb01/0x1b10 [ 68.736233] ? __lock_is_held+0xb6/0x140 [ 68.740307] process_one_work+0xbbf/0x1b10 [ 68.744527] ? trace_hardirqs_on+0xd/0x10 [ 68.748681] ? pwq_dec_nr_in_flight+0x450/0x450 [ 68.753337] ? __schedule+0x8f3/0x2060 [ 68.757193] ? update_curr+0x2e3/0xa60 [ 68.761073] ? check_noncircular+0x20/0x20 [ 68.765279] ? __lock_is_held+0xb6/0x140 [ 68.769338] ? lock_acquire+0x1d5/0x580 [ 68.773281] ? lock_acquire+0x1d5/0x580 [ 68.777226] ? worker_thread+0x4a3/0x1990 [ 68.781358] ? lock_downgrade+0x980/0x980 [ 68.785482] ? lock_release+0xa40/0xa40 [ 68.789429] ? retint_kernel+0x10/0x10 [ 68.793293] ? do_raw_spin_trylock+0x190/0x190 [ 68.797859] worker_thread+0x223/0x1990 [ 68.801823] ? process_one_work+0x1b10/0x1b10 [ 68.806306] ? _raw_spin_unlock_irq+0x27/0x70 [ 68.810792] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 68.815783] ? trace_hardirqs_on+0xd/0x10 [ 68.819902] ? _raw_spin_unlock_irq+0x27/0x70 [ 68.824378] ? finish_task_switch+0x1d3/0x740 [ 68.828849] ? finish_task_switch+0x1aa/0x740 [ 68.833320] ? copy_overflow+0x20/0x20 [ 68.837193] ? __schedule+0x8f3/0x2060 [ 68.841081] ? find_held_lock+0x35/0x1d0 [ 68.845123] ? find_held_lock+0x35/0x1d0 [ 68.849167] ? complete+0x62/0x80 [ 68.852613] ? __schedule+0x2060/0x2060 [ 68.856568] ? do_wait_intr_irq+0x3e0/0x3e0 [ 68.860866] ? __lockdep_init_map+0xe4/0x650 [ 68.865250] ? do_raw_spin_trylock+0x190/0x190 [ 68.869803] ? lockdep_init_map+0x9/0x10 [ 68.873837] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 68.878914] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 68.883904] ? trace_hardirqs_on+0xd/0x10 [ 68.888031] ? __kthread_parkme+0x175/0x240 [ 68.892362] kthread+0x33c/0x400 [ 68.895708] ? process_one_work+0x1b10/0x1b10 [ 68.900176] ? kthread_stop+0x7a0/0x7a0 [ 68.904143] ret_from_fork+0x24/0x30 [ 68.907872] Mem-Info: [ 68.910597] active_anon:1755 inactive_anon:62 isolated_anon:0 [ 68.910597] active_file:14 inactive_file:13 isolated_file:0 [ 68.910597] unevictable:0 dirty:0 writeback:0 unstable:0 [ 68.910597] slab_reclaimable:7269 slab_unreclaimable:82656 [ 68.910597] mapped:2 shmem:68 pagetables:303 bounce:0 [ 68.910597] free:23086 free_pcp:2 free_cma:0 [ 68.942590] Node 0 active_anon:7020kB inactive_anon:248kB active_file:56kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:272kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 68.969058] 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 [ 68.995184] lowmem_reserve[]: 0 2870 6381 6381 [ 68.999776] Node 0 DMA32 free:43904kB min:30332kB low:37912kB high:45492kB active_anon:0kB inactive_anon:0kB active_file:16kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2942352kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 69.027033] lowmem_reserve[]: 0 0 3510 3510 [ 69.031365] Node 0 Normal free:32612kB min:37084kB low:46352kB high:55620kB active_anon:6996kB inactive_anon:248kB active_file:52kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3594632kB mlocked:0kB kernel_stack:2912kB pagetables:1120kB bounce:0kB free_pcp:8kB local_pcp:0kB free_cma:0kB [ 69.059756] lowmem_reserve[]: 0 0 0 0 [ 69.063576] 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 [ 69.077161] Node 0 DMA32: 4*4kB (UME) 6*8kB (UME) 2*16kB (ME) 5*32kB (UME) 6*64kB (UME) 6*128kB (UME) 6*256kB (UME) 4*512kB (ME) 4*1024kB (UME) 3*2048kB (ME) 7*4096kB (M) = 43904kB [ 69.093479] Node 0 Normal: 436*4kB (UME) 295*8kB (UME) 213*16kB (UM) 161*32kB (UM) 101*64kB (UM) 44*128kB (M) 19*256kB (M) 2*512kB (UM) 0*1024kB 1*2048kB (M) 0*4096kB = 32696kB [ 69.109435] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 69.118045] 96 total pagecache pages [ 69.121756] 0 pages in swap cache [ 69.125211] Swap cache stats: add 0, delete 0, find 0/0 [ 69.130576] Free swap = 0kB [ 69.133594] Total swap = 0kB [ 69.136611] 1965979 pages RAM [ 69.139717] 0 pages HighMem/MovableOnly [ 69.143697] 327756 pages reserved [ 69.147160] Unreclaimable slab info: [ 69.150868] Name Used Total [ 69.156401] hashtab_node 118KB 119KB [ 69.161770] ebitmap_node 382KB 385KB [ 69.167154] avtab_node 1012KB 1013KB [ 69.172526] TIPC 1KB 7KB [ 69.177903] SCTPv6 2KB 4KB [ 69.183288] DCCPv6 2KB 7KB [ 69.188658] DCCP 2KB 6KB [ 69.194064] fib6_nodes 0KB 4KB [ 69.199428] ip6_dst_cache 11KB 11KB [ 69.204789] RAWv6 9KB 19KB [ 69.210166] UDPv6 12KB 14KB [ 69.215531] TCPv6 2KB 5KB [ 69.220901] sd_ext_cdb 0KB 3KB [ 69.226276] scsi_sense_cache 228KB 228KB [ 69.231643] virtio_scsi_cmd 16KB 16KB [ 69.237047] sgpool-128 8KB 8KB [ 69.242412] sgpool-64 4KB 6KB [ 69.247768] sgpool-32 448KB 448KB [ 69.253178] sgpool-16 153KB 153KB [ 69.258545] sgpool-8 363KB 363KB [ 69.263902] cfq_io_cq 15KB 19KB [ 69.269273] cfq_queue 24KB 27KB [ 69.274633] mqueue_inode_cache 1KB 7KB [ 69.280077] nfs_commit_data 3KB 7KB [ 69.285446] nfs_write_data 34KB 37KB [ 69.290820] jbd2_inode 1KB 3KB [ 69.296198] ext4_system_zone 0KB 3KB [ 69.301568] bio-1 1KB 3KB [ 69.306949] rpc_buffers 17KB 19KB [ 69.312330] rpc_tasks 2KB 3KB [ 69.317875] UNIX 784KB 784KB [ 69.323249] tcp_bind_bucket 0KB 4KB [ 69.328611] ip_fib_trie 0KB 3KB [ 69.333970] ip_fib_alias 0KB 3KB [ 69.339347] ip_dst_cache 3KB 8KB [ 69.344705] RAW 5KB 7KB [ 69.350077] UDP 29KB 39KB [ 69.355482] TCP 7KB 7KB [ 69.360861] hugetlbfs_inode_cache 1KB 7KB [ 69.366592] eventpoll_pwq 10KB 11KB [ 69.371958] eventpoll_epi 18KB 23KB [ 69.377331] inotify_inode_mark 3KB 7KB [ 69.382778] request_queue 31KB 33KB [ 69.388154] blkdev_ioc 21KB 23KB [ 69.393528] bio-0 656KB 656KB [ 69.398902] biovec-(1<<(21-12)) 660KB 660KB [ 69.404457] biovec-64 700KB 700KB [ 69.409822] biovec-16 150KB 150KB [ 69.415200] bio_integrity_payload 0KB 4KB [ 69.420919] khugepaged_mm_slot 0KB 3KB [ 69.426388] uid_cache 0KB 3KB [ 69.431755] dmaengine-unmap-2 0KB 3KB [ 69.437134] audit_buffer 0KB 3KB [ 69.442501] skbuff_fclone_cache 129KB 131KB [ 69.448054] skbuff_head_cache 1702KB 1702KB [ 69.453441] configfs_dir_cache 0KB 4KB [ 69.458899] file_lock_cache 155KB 158KB [ 69.464279] file_lock_ctx 1KB 3KB [ 69.469653] fsnotify_mark_connector 2KB 3KB [ 69.475535] shmem_inode_cache 1041KB 1042KB [ 69.480904] task_delay_info 302KB 343KB [ 69.486281] taskstats 3KB 3KB [ 69.491641] sigqueue 351KB 354KB [ 69.497035] kernfs_node_cache 2156KB 2157KB [ 69.502396] mnt_cache 15KB 16KB [ 69.508531] filp 8210KB 8475KB [ 69.513898] names_cache 109854KB 109871KB [ 69.519280] avc_node 37KB 43KB [ 69.524647] selinux_file_security 412KB 453KB [ 69.530365] selinux_inode_security 1930KB 1936KB [ 69.536179] key_jar 3KB 7KB [ 69.541542] nsproxy 0KB 3KB [ 69.546917] vm_area_struct 17988KB 18009KB [ 69.552296] mm_struct 4309KB 4328KB [ 69.557661] fs_cache 403KB 440KB [ 69.563050] files_cache 1513KB 1518KB [ 69.568411] signal_cache 2417KB 2422KB [ 69.573768] sighand_cache 212KB 256KB [ 69.579154] task_struct 10320KB 10320KB [ 69.584515] cred_jar 2279KB 2288KB [ 69.589873] anon_vma_chain 7471KB 7485KB [ 69.595248] anon_vma 116KB 277KB [ 69.600609] pid 210KB 256KB [ 69.605966] Acpi-Operand 106KB 170KB [ 69.611340] Acpi-Namespace 19KB 23KB [ 69.616695] numa_policy 0KB 3KB [ 69.622062] debug_objects_cache 473KB 477KB [ 69.627602] trace_event_file 145KB 147KB [ 69.632974] ftrace_event_field 257KB 259KB [ 69.638469] pool_workqueue 22KB 24KB [ 69.643841] page->ptl 2966KB 2976KB [ 69.649242] kmalloc-262144 1032KB 1032KB [ 69.654604] kmalloc-131072 650KB 650KB [ 69.659961] kmalloc-65536 264KB 264KB [ 69.665336] kmalloc-32768 627KB 627KB [ 69.670690] kmalloc-16384 148KB 148KB [ 69.676063] kmalloc-8192 503KB 503KB [ 69.681433] kmalloc-4096 7131KB 7152KB [ 69.686802] kmalloc-2048 3130KB 3136KB [ 69.692177] kmalloc-1024 4953KB 4953KB [ 69.697540] kmalloc-512 2675KB 2906KB [ 69.702910] kmalloc-256 1920KB 2325KB [ 69.708296] kmalloc-128 394KB 523KB [ 69.713658] kmalloc-96 2180KB 2180KB [ 69.719044] kmalloc-64 2470KB 2472KB [ 69.724404] kmalloc-32 2381KB 2401KB [ 69.729774] kmalloc-192 906KB 908KB [ 69.735147] kmem_cache 100KB 101KB [ 69.740506] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 69.749124] [ 1774] 0 1774 5366 167 90112 0 -1000 udevd [ 69.757292] [ 3398] 0 3398 4725 50 86016 0 0 cron [ 69.765364] [ 3408] 0 3408 3736 45 69632 0 0 mcstransd [ 69.773854] [ 3444] 0 3444 12490 153 139264 0 -1000 sshd [ 69.781933] [ 3468] 0 3468 3694 39 77824 0 0 getty [ 69.790122] [ 3469] 0 3469 3694 41 77824 0 0 getty [ 69.798272] [ 3470] 0 3470 3694 39 73728 0 0 getty [ 69.806438] [ 3471] 0 3471 3694 39 81920 0 0 getty [ 69.814605] [ 3472] 0 3472 3694 40 73728 0 0 getty [ 69.822774] [ 3473] 0 3473 3694 41 73728 0 0 getty [ 69.830939] [ 3474] 0 3474 3649 41 81920 0 0 getty [ 69.839122] [ 3479] 0 3479 5681 454 86016 0 -1000 udevd [ 69.847271] [ 3480] 0 3480 5681 454 86016 0 -1000 udevd [ 69.855432] [ 3500] 0 3500 17821 197 184320 0 0 sshd [ 69.863514] [ 3502] 0 3502 280 1 32768 0 0 syzkaller146509 [ 69.872536] [ 3503] 0 3503 4375 0 32768 0 0 syzkaller146509 [ 69.881563] [ 3504] 0 3504 4375 0 32768 0 0 syzkaller146509 [ 69.890584] [ 3505] 0 3505 4375 0 32768 0 0 syzkaller146509 [ 69.899612] [ 3506] 0 3506 4375 0 32768 0 0 syzkaller146509 [ 69.908633] [ 3507] 0 3507 4375 0 32768 0 0 syzkaller146509 [ 69.917657] [ 3508] 0 3508 4375 0 32768 0 0 syzkaller146509 [ 69.926676] [ 3509] 0 3509 4375 0 32768 0 0 syzkaller146509 [ 69.935704] [ 3510] 0 3510 4375 0 32768 0 0 syzkaller146509 [ 69.944719] Out of memory: Kill process 3500 (sshd) score 0 or sacrifice child [ 69.952233] Killed process 3502 (syzkaller146509) total-vm:1120kB, anon-rss:4kB, file-rss:0kB, shmem-rss:0kB [ 69.964362] init invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=0 [ 69.975968] init cpuset=/ mems_allowed=0 [ 69.980078] CPU: 1 PID: 1 Comm: init Not tainted 4.15.0-rc7+ #184 [ 69.986291] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 69.995628] Call Trace: [ 69.998207] dump_stack+0x194/0x257 [ 70.001827] ? arch_local_irq_restore+0x53/0x53 [ 70.006486] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 70.011671] dump_header+0x28c/0xe1e [ 70.015380] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 70.020570] ? pagefault_out_of_memory+0x152/0x152 [ 70.025487] ? check_noncircular+0x20/0x20 [ 70.029713] ? print_irqtrace_events+0x270/0x270 [ 70.034463] ? __lock_acquire+0x664/0x3e00 [ 70.038695] ? check_noncircular+0x20/0x20 [ 70.042916] ? print_irqtrace_events+0x270/0x270 [ 70.047667] ? check_noncircular+0x20/0x20 [ 70.051883] ? task_will_free_mem+0x252/0xaa0 [ 70.056372] ? print_irqtrace_events+0x270/0x270 [ 70.061130] ? ___ratelimit+0x30d/0x630 [ 70.065093] ? lock_downgrade+0x980/0x980 [ 70.069237] ? lock_release+0xa40/0xa40 [ 70.073207] ? mark_held_locks+0xaf/0x100 [ 70.077347] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 70.082441] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 70.087458] ? trace_hardirqs_on+0xd/0x10 [ 70.091598] ? ___ratelimit+0x95/0x630 [ 70.095477] ? idr_get_free_cmn+0xfd0/0xfd0 [ 70.099784] ? check_noncircular+0x20/0x20 [ 70.104001] ? find_held_lock+0x138/0x1d0 [ 70.108154] oom_kill_process+0x8b5/0x14a0 [ 70.112383] ? has_ns_capability_noaudit+0x163/0x2a0 [ 70.117477] ? check_noncircular+0x20/0x20 [ 70.121707] ? oom_evaluate_task+0x480/0x480 [ 70.126123] ? security_capable_noaudit+0x8b/0xc0 [ 70.130952] ? find_held_lock+0x35/0x1d0 [ 70.134987] ? check_noncircular+0x20/0x20 [ 70.139206] ? oom_unkillable_task+0x394/0x4c0 [ 70.143775] ? lock_downgrade+0x980/0x980 [ 70.147904] ? lock_release+0xa40/0xa40 [ 70.151855] ? do_try_to_free_pages+0xc53/0x1020 [ 70.156602] ? find_lock_task_mm+0x460/0x460 [ 70.161005] ? find_held_lock+0x35/0x1d0 [ 70.165067] ? out_of_memory+0xb3a/0x1220 [ 70.169206] ? lock_downgrade+0x980/0x980 [ 70.173345] ? lock_release+0xa40/0xa40 [ 70.177302] ? lock_acquire+0x1d5/0x580 [ 70.181262] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 70.186192] ? oom_evaluate_task+0x284/0x480 [ 70.190595] out_of_memory+0x86d/0x1220 [ 70.194573] ? oom_killer_disable+0x310/0x310 [ 70.199053] ? mutex_trylock+0x23a/0x2d0 [ 70.203104] ? __lock_is_held+0xb6/0x140 [ 70.207260] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 70.212705] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 70.217580] ? warn_alloc+0x2b0/0x2b0 [ 70.221370] ? lock_downgrade+0x980/0x980 [ 70.225550] ? find_get_entry+0x53c/0x9e0 [ 70.229721] ? __lock_acquire+0x664/0x3e00 [ 70.233966] ? __lock_is_held+0xb6/0x140 [ 70.238037] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 70.243925] ? __might_sleep+0x95/0x190 [ 70.247894] __alloc_pages_nodemask+0x9fb/0xd80 [ 70.252565] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 70.257572] ? add_to_page_cache_lru+0x510/0x510 [ 70.262329] ? check_noncircular+0x20/0x20 [ 70.266552] ? check_noncircular+0x20/0x20 [ 70.270788] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 70.275575] alloc_pages_current+0xb6/0x1e0 [ 70.279884] __page_cache_alloc+0x334/0x500 [ 70.284191] ? rcu_read_lock_held+0xa9/0xc0 [ 70.288504] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 70.295879] filemap_fault+0xefc/0x1c20 [ 70.299840] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 70.305031] ? __lock_page_or_retry+0x4f0/0x4f0 [ 70.309691] ? print_irqtrace_events+0x270/0x270 [ 70.314440] ? filemap_map_pages+0x942/0x15d0 [ 70.318945] ? find_get_entries_tag+0xeb0/0xeb0 [ 70.323606] ? __lock_acquire+0x664/0x3e00 [ 70.327825] ? check_noncircular+0x20/0x20 [ 70.332035] ? print_irqtrace_events+0x270/0x270 [ 70.336771] ? add_wait_queue+0x290/0x290 [ 70.340898] ? print_irqtrace_events+0x270/0x270 [ 70.345633] ? print_irqtrace_events+0x270/0x270 [ 70.350381] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 70.355556] ? free_obj_work+0x690/0x690 [ 70.359611] ? cpumask_local_spread+0x250/0x250 [ 70.364277] ? lock_acquire+0x1d5/0x580 [ 70.368235] ? lock_acquire+0x1d5/0x580 [ 70.372196] ? ext4_filemap_fault+0x7a/0xad [ 70.376508] ? __lock_acquire+0x664/0x3e00 [ 70.380735] ? lock_release+0xa40/0xa40 [ 70.384692] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 70.390569] ? __sigqueue_free.part.16+0x51/0x60 [ 70.395320] ? rcu_note_context_switch+0x710/0x710 [ 70.400248] ? __might_sleep+0x95/0x190 [ 70.404214] ? down_read+0x96/0x150 [ 70.407828] ? ext4_filemap_fault+0x7a/0xad [ 70.412139] ? __down_interruptible+0x6b0/0x6b0 [ 70.416802] ? rcu_pm_notify+0xc0/0xc0 [ 70.420692] ext4_filemap_fault+0x82/0xad [ 70.424825] __do_fault+0xeb/0x30f [ 70.428345] ? find_held_lock+0x35/0x1d0 [ 70.432392] ? pte_offset_kernel+0xc7/0xc7 [ 70.436625] ? __set_current_blocked+0xcf/0x110 [ 70.441283] ? check_noncircular+0x20/0x20 [ 70.445517] __handle_mm_fault+0x1d8f/0x3ce0 [ 70.449913] ? __pmd_alloc+0x4e0/0x4e0 [ 70.453778] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 70.458779] ? find_held_lock+0x35/0x1d0 [ 70.462840] ? handle_mm_fault+0x248/0x8d0 [ 70.467066] ? lock_downgrade+0x980/0x980 [ 70.471240] handle_mm_fault+0x334/0x8d0 [ 70.475287] ? down_read_trylock+0xdb/0x170 [ 70.479592] ? __do_page_fault+0x32d/0xc90 [ 70.483819] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 70.488381] ? vmacache_find+0x5f/0x280 [ 70.492348] ? find_vma+0x30/0x150 [ 70.495882] __do_page_fault+0x5c9/0xc90 [ 70.499944] ? mm_fault_error+0x2c0/0x2c0 [ 70.504086] ? exit_to_usermode_loop+0x8c/0x310 [ 70.508761] do_page_fault+0xee/0x720 [ 70.512551] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 70.518079] ? __do_page_fault+0xc90/0xc90 [ 70.522317] ? syscall_return_slowpath+0x2ad/0x550 [ 70.527236] ? prepare_exit_to_usermode+0x340/0x340 [ 70.532254] ? return_from_SYSCALL_64+0x10/0x75 [ 70.536915] ? page_fault+0x36/0x60 [ 70.540535] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 70.545369] ? page_fault+0x36/0x60 [ 70.548981] page_fault+0x4c/0x60 [ 70.552413] RIP: 0033:0x402a80 [ 70.555585] RSP: 002b:00007ffe220c55b8 EFLAGS: 00010246 [ 70.561201] RAX: 0000000000000000 RBX: 00007ffe220c5cf0 RCX: 00007fefbd5bbdd3 [ 70.568457] RDX: 00007ffe220c55c0 RSI: 00007ffe220c56f0 RDI: 0000000000000011 [ 70.575707] RBP: 00007ffe220c5ea0 R08: 00007ffe220c5f20 R09: 0000000000000001 [ 70.582955] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 70.590210] R13: 00007ffe220c6280 R14: 0000000000000000 R15: 0000000000000000 [ 70.597563] Mem-Info: [ 70.600792] active_anon:1738 inactive_anon:62 isolated_anon:0 [ 70.600792] active_file:4 inactive_file:23 isolated_file:0 [ 70.600792] unevictable:0 dirty:0 writeback:0 unstable:0 [ 70.600792] slab_reclaimable:7269 slab_unreclaimable:82656 [ 70.600792] mapped:2 shmem:68 pagetables:276 bounce:0 [ 70.600792] free:23127 free_pcp:21 free_cma:0 [ 70.632835] Node 0 active_anon:6952kB inactive_anon:248kB active_file:16kB inactive_file:92kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:272kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 70.659299] 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 [ 70.685441] lowmem_reserve[]: 0 2870 6381 6381 [ 70.690071] Node 0 DMA32 free:43904kB min:30332kB low:37912kB high:45492kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:12kB unevictable:0kB writepending:0kB present:3129332kB managed:2942352kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 70.717341] lowmem_reserve[]: 0 0 3510 3510 [ 70.721707] Node 0 Normal free:32696kB min:37084kB low:46352kB high:55620kB active_anon:6952kB inactive_anon:248kB active_file:16kB inactive_file:80kB unevictable:0kB writepending:0kB present:4718592kB managed:3594632kB mlocked:0kB kernel_stack:2880kB pagetables:1104kB bounce:0kB free_pcp:84kB local_pcp:84kB free_cma:0kB [ 70.751090] lowmem_reserve[]: 0 0 0 0 [ 70.754962] 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 [ 70.768652] Node 0 DMA32: 4*4kB (UME) 6*8kB (UME) 2*16kB (ME) 5*32kB (UME) 6*64kB (UME) 6*128kB (UME) 6*256kB (UME) 4*512kB (ME) 4*1024kB (UME) 3*2048kB (ME) 7*4096kB (M) = 43904kB [ 70.785033] Node 0 Normal: 436*4kB (UME) 299*8kB (UME) 213*16kB (UM) 162*32kB (UM) 101*64kB (UM) 44*128kB (M) 19*256kB (M) 2*512kB (UM) 0*1024kB 1*2048kB (M) 0*4096kB = 32760kB [ 70.801051] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 70.809643] 95 total pagecache pages [ 70.813372] 0 pages in swap cache [ 70.816837] Swap cache stats: add 0, delete 0, find 0/0 [ 70.822211] Free swap = 0kB [ 70.825238] Total swap = 0kB [ 70.828266] 1965979 pages RAM [ 70.831378] 0 pages HighMem/MovableOnly [ 70.835355] 327756 pages reserved [ 70.838815] Unreclaimable slab info: [ 70.842537] Name Used Total [ 70.848087] hashtab_node 118KB 119KB [ 70.853460] ebitmap_node 382KB 385KB [ 70.858837] avtab_node 1012KB 1013KB [ 70.864235] TIPC 1KB 7KB [ 70.869618] SCTPv6 2KB 4KB [ 70.874991] DCCPv6 2KB 7KB [ 70.881179] DCCP 2KB 6KB [ 70.886584] fib6_nodes 0KB 4KB [ 70.891962] ip6_dst_cache 11KB 11KB [ 70.897339] RAWv6 9KB 19KB [ 70.902716] UDPv6 12KB 14KB [ 70.908093] TCPv6 2KB 5KB [ 70.913490] sd_ext_cdb 0KB 3KB [ 70.918869] scsi_sense_cache 228KB 228KB [ 70.924245] virtio_scsi_cmd 16KB 16KB [ 70.929625] sgpool-128 8KB 8KB [ 70.934987] sgpool-64 4KB 6KB [ 70.940359] sgpool-32 443KB 448KB [ 70.945744] sgpool-16 153KB 153KB [ 70.951121] sgpool-8 363KB 363KB [ 70.956501] cfq_io_cq 15KB 19KB [ 70.961862] cfq_queue 24KB 27KB [ 70.967232] mqueue_inode_cache 1KB 7KB [ 70.972708] nfs_commit_data 3KB 7KB [ 70.978085] nfs_write_data 34KB 37KB [ 70.983464] jbd2_inode 1KB 3KB [ 70.988844] ext4_system_zone 0KB 3KB [ 70.994229] bio-1 1KB 3KB [ 70.999614] rpc_buffers 17KB 19KB [ 71.004988] rpc_tasks 2KB 3KB [ 71.010959] UNIX 784KB 784KB [ 71.016335] tcp_bind_bucket 0KB 4KB [ 71.021711] ip_fib_trie 0KB 3KB [ 71.027085] ip_fib_alias 0KB 3KB [ 71.032462] ip_dst_cache 3KB 8KB [ 71.037823] RAW 5KB 7KB [ 71.043190] UDP 29KB 39KB [ 71.048565] TCP 7KB 7KB [ 71.053939] hugetlbfs_inode_cache 1KB 7KB [ 71.059663] eventpoll_pwq 10KB 11KB [ 71.065033] eventpoll_epi 18KB 23KB [ 71.070412] inotify_inode_mark 3KB 7KB [ 71.075857] request_queue 31KB 33KB [ 71.081228] blkdev_ioc 21KB 23KB [ 71.086606] bio-0 656KB 656KB [ 71.091968] biovec-(1<<(21-12)) 660KB 660KB [ 71.097514] biovec-64 698KB 700KB [ 71.102889] biovec-16 148KB 150KB [ 71.108264] bio_integrity_payload 0KB 4KB [ 71.113972] khugepaged_mm_slot 0KB 3KB [ 71.119431] uid_cache 0KB 3KB [ 71.124810] dmaengine-unmap-2 0KB 3KB [ 71.130183] audit_buffer 0KB 3KB [ 71.135573] skbuff_fclone_cache 129KB 131KB [ 71.141139] skbuff_head_cache 1702KB 1702KB [ 71.147239] configfs_dir_cache 0KB 4KB [ 71.152718] file_lock_cache 155KB 158KB [ 71.158082] file_lock_ctx 1KB 3KB [ 71.163454] fsnotify_mark_connector 2KB 3KB [ 71.169353] shmem_inode_cache 1041KB 1042KB [ 71.174735] task_delay_info 302KB 343KB [ 71.180108] taskstats 3KB 3KB [ 71.185486] sigqueue 351KB 354KB [ 71.190873] kernfs_node_cache 2156KB 2157KB [ 71.196231] mnt_cache 15KB 16KB [ 71.201600] filp 8183KB 8437KB [ 71.206988] names_cache 109845KB 109862KB [ 71.212375] avc_node 37KB 43KB [ 71.217737] selinux_file_security 409KB 453KB [ 71.223461] selinux_inode_security 1930KB 1936KB [ 71.229279] key_jar 3KB 7KB [ 71.234648] nsproxy 0KB 3KB [ 71.240033] vm_area_struct 17988KB 18009KB [ 71.245413] mm_struct 4309KB 4328KB [ 71.250781] fs_cache 403KB 440KB [ 71.256154] files_cache 1513KB 1518KB [ 71.261534] signal_cache 2417KB 2422KB [ 71.266910] sighand_cache 212KB 256KB [ 71.272289] task_struct 10320KB 10320KB [ 71.277654] cred_jar 2279KB 2288KB [ 71.283822] anon_vma_chain 7471KB 7485KB [ 71.289193] anon_vma 116KB 277KB [ 71.294564] pid 210KB 256KB [ 71.299928] Acpi-Operand 106KB 170KB [ 71.305305] Acpi-Namespace 19KB 23KB [ 71.310686] numa_policy 0KB 3KB [ 71.316065] debug_objects_cache 473KB 477KB [ 71.321617] trace_event_file 145KB 147KB [ 71.326995] ftrace_event_field 257KB 259KB [ 71.332464] pool_workqueue 22KB 24KB [ 71.338477] page->ptl 2966KB 2976KB [ 71.343853] kmalloc-262144 1032KB 1032KB [ 71.349225] kmalloc-131072 650KB 650KB [ 71.354589] kmalloc-65536 264KB 264KB [ 71.359955] kmalloc-32768 627KB 627KB [ 71.365333] kmalloc-16384 148KB 148KB [ 71.370716] kmalloc-8192 503KB 503KB [ 71.376084] kmalloc-4096 7131KB 7144KB [ 71.381464] kmalloc-2048 3130KB 3136KB [ 71.386840] kmalloc-1024 4953KB 4953KB [ 71.392207] kmalloc-512 2675KB 2906KB [ 71.397579] kmalloc-256 1906KB 2310KB [ 71.402963] kmalloc-128 394KB 523KB [ 71.408328] kmalloc-96 2180KB 2180KB [ 71.413701] kmalloc-64 2469KB 2472KB [ 71.419856] kmalloc-32 2375KB 2401KB [ 71.425225] kmalloc-192 906KB 908KB [ 71.430598] kmem_cache 100KB 101KB [ 71.435972] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 71.444580] [ 1774] 0 1774 5366 167 90112 0 -1000 udevd [ 71.452745] [ 3398] 0 3398 4725 50 86016 0 0 cron [ 71.460808] [ 3408] 0 3408 3736 45 69632 0 0 mcstransd [ 71.469315] [ 3444] 0 3444 12490 153 139264 0 -1000 sshd [ 71.477392] [ 3468] 0 3468 3694 39 77824 0 0 getty [ 71.485562] [ 3469] 0 3469 3694 41 77824 0 0 getty [ 71.493726] [ 3470] 0 3470 3694 39 73728 0 0 getty [ 71.501889] [ 3471] 0 3471 3694 39 81920 0 0 getty [ 71.510058] [ 3472] 0 3472 3694 40 73728 0 0 getty [ 71.518311] [ 3473] 0 3473 3694 41 73728 0 0 getty [ 71.526479] [ 3474] 0 3474 3649 41 81920 0 0 getty [ 71.534658] [ 3479] 0 3479 5681 454 86016 0 -1000 udevd [ 71.542823] [ 3480] 0 3480 5681 454 86016 0 -1000 udevd [ 71.550988] [ 3500] 0 3500 17821 197 184320 0 0 sshd [ 71.559112] [ 3503] 0 3503 4375 0 32768 0 0 syzkaller146509 [ 71.568133] [ 3504] 0 3504 4375 0 32768 0 0 syzkaller146509 [ 71.577163] [ 3505] 0 3505 4375 0 32768 0 0 syzkaller146509 [ 71.586205] [ 3506] 0 3506 4375 0 32768 0 0 syzkaller146509 [ 71.595221] [ 3507] 0 3507 4375 0 32768 0 0 syzkaller146509 Connection to 10.128.0.47 closed by remote host. [ 71.60426