[....] Starting enhanced syslogd: rsyslogd[ 13.124069] audit: type=1400 audit(1516404453.666:5): avc: denied { syslog } for pid=3505 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 OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 24.038142] audit: type=1400 audit(1516404464.580:6): avc: denied { map } for pid=3645 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 '10.128.0.54' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program [ 30.095213] audit: type=1400 audit(1516404470.638:7): avc: denied { map } for pid=3659 comm="syzkaller998488" path="/root/syzkaller998488782" 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 [ 30.126129] audit: type=1400 audit(1516404470.638:8): avc: denied { map_create } for pid=3667 comm="syzkaller998488" 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 [ 36.865540] syzkaller998488 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 36.878137] syzkaller998488 cpuset=/ mems_allowed=0 [ 36.883472] CPU: 1 PID: 3667 Comm: syzkaller998488 Not tainted 4.15.0-rc8+ #198 [ 36.890900] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.900227] Call Trace: [ 36.902789] dump_stack+0x194/0x257 [ 36.906391] ? arch_local_irq_restore+0x53/0x53 [ 36.911037] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 36.916206] dump_header+0x28c/0xe1e [ 36.919896] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 36.925062] ? pagefault_out_of_memory+0x152/0x152 [ 36.929962] ? check_noncircular+0x20/0x20 [ 36.934171] ? print_irqtrace_events+0x270/0x270 [ 36.939076] ? __lock_acquire+0x664/0x3e00 [ 36.943285] ? check_noncircular+0x20/0x20 [ 36.947507] ? find_held_lock+0x35/0x1d0 [ 36.951546] ? check_noncircular+0x20/0x20 [ 36.955750] ? task_will_free_mem+0x252/0xaa0 [ 36.960221] ? print_irqtrace_events+0x270/0x270 [ 36.964955] ? ___ratelimit+0x30d/0x630 [ 36.968900] ? lock_downgrade+0x980/0x980 [ 36.973032] ? lock_release+0xa40/0xa40 [ 36.976990] ? mark_held_locks+0xaf/0x100 [ 36.981115] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 36.986191] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 36.991179] ? trace_hardirqs_on+0xd/0x10 [ 36.995300] ? ___ratelimit+0x95/0x630 [ 36.999159] ? idr_get_free_cmn+0xfd0/0xfd0 [ 37.003450] ? check_noncircular+0x20/0x20 [ 37.007657] ? find_held_lock+0x138/0x1d0 [ 37.011784] oom_kill_process+0x8b5/0x14a0 [ 37.015996] ? has_ns_capability_noaudit+0x163/0x2a0 [ 37.021075] ? lock_downgrade+0x980/0x980 [ 37.025197] ? oom_evaluate_task+0x480/0x480 [ 37.029586] ? security_capable_noaudit+0x8b/0xc0 [ 37.034404] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 37.039479] ? has_capability+0x30/0x30 [ 37.043425] ? do_raw_spin_trylock+0x190/0x190 [ 37.048004] ? check_noncircular+0x20/0x20 [ 37.052222] ? has_capability_noaudit+0x24/0x30 [ 37.056863] ? oom_badness+0xd1/0x980 [ 37.060631] ? lock_release+0xa40/0xa40 [ 37.064582] ? find_lock_task_mm+0x460/0x460 [ 37.068966] ? find_held_lock+0x35/0x1d0 [ 37.073012] ? out_of_memory+0xb3a/0x1220 [ 37.077139] ? lock_downgrade+0x980/0x980 [ 37.081260] ? lock_release+0xa40/0xa40 [ 37.085463] ? lock_acquire+0x1d5/0x580 [ 37.089410] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 37.094319] ? oom_evaluate_task+0x284/0x480 [ 37.098703] out_of_memory+0x86d/0x1220 [ 37.102648] ? find_next_bit+0x27/0x30 [ 37.106792] ? oom_killer_disable+0x310/0x310 [ 37.111258] ? mutex_trylock+0x23a/0x2d0 [ 37.115293] ? __lock_is_held+0xb6/0x140 [ 37.119326] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 37.124757] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 37.129594] ? warn_alloc+0x2b0/0x2b0 [ 37.133367] ? lock_release+0xa40/0xa40 [ 37.137315] ? print_irqtrace_events+0x270/0x270 [ 37.142652] ? retint_kernel+0x10/0x10 [ 37.146526] ? mutex_spin_on_owner+0x446/0xb50 [ 37.151092] ? __lock_acquire+0x664/0x3e00 [ 37.155302] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 37.161157] ? lock_release+0xa40/0xa40 [ 37.165121] ? __lock_is_held+0xb6/0x140 [ 37.169166] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 37.175027] ? find_held_lock+0x35/0x1d0 [ 37.179070] ? __might_sleep+0x95/0x190 [ 37.183028] __alloc_pages_nodemask+0x9fb/0xd80 [ 37.187677] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 37.193278] ? pcpu_chunk_refresh_hint+0x425/0x570 [ 37.199939] ? print_irqtrace_events+0x270/0x270 [ 37.206061] ? __lock_is_held+0xb6/0x140 [ 37.210274] ? find_next_bit+0x27/0x30 [ 37.214136] pcpu_populate_chunk+0x1b3/0x880 [ 37.218526] pcpu_alloc+0x978/0x10e0 [ 37.222224] ? pcpu_free_area+0xa00/0xa00 [ 37.226343] ? __pte_alloc_kernel+0x1bd/0x2a0 [ 37.230812] ? vmap_page_range_noflush+0x523/0x720 [ 37.235720] ? retint_kernel+0x10/0x10 [ 37.239581] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 37.244572] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 37.249305] ? retint_kernel+0x10/0x10 [ 37.253174] ? pcpu_alloc+0xf/0x10e0 [ 37.256863] __alloc_percpu_gfp+0x27/0x30 [ 37.260993] array_map_alloc+0x794/0x990 [ 37.265038] ? perf_event_fd_array_get_ptr+0x230/0x230 [ 37.270289] SyS_bpf+0x93c/0x4840 [ 37.274668] ? check_noncircular+0x20/0x20 [ 37.278892] ? bpf_prog_get+0x20/0x20 [ 37.282669] ? perf_event_fork+0x30/0x30 [ 37.286708] ? __lock_is_held+0xb6/0x140 [ 37.290751] ? check_noncircular+0x20/0x20 [ 37.294965] ? __handle_mm_fault+0x80e/0x3ce0 [ 37.299436] ? check_noncircular+0x20/0x20 [ 37.303640] ? __pmd_alloc+0x4e0/0x4e0 [ 37.307501] ? vma_link+0xe9/0x170 [ 37.311024] ? find_held_lock+0x35/0x1d0 [ 37.315066] ? handle_mm_fault+0x248/0x8d0 [ 37.319274] ? find_held_lock+0x35/0x1d0 [ 37.323313] ? __do_page_fault+0x5f7/0xc90 [ 37.327519] ? lock_downgrade+0x980/0x980 [ 37.331645] ? handle_mm_fault+0x410/0x8d0 [ 37.335848] ? down_read_trylock+0xdb/0x170 [ 37.341350] ? __do_page_fault+0x32d/0xc90 [ 37.346170] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 37.350720] ? vmacache_find+0x5f/0x280 [ 37.354663] ? vmacache_update+0xfe/0x130 [ 37.358974] ? up_read+0x1a/0x40 [ 37.362313] ? __do_page_fault+0x3d6/0xc90 [ 37.366526] ? mm_fault_error+0x2c0/0x2c0 [ 37.370665] ? do_page_fault+0xee/0x720 [ 37.374626] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 37.380135] ? __do_page_fault+0xc90/0xc90 [ 37.384352] ? SyS_mmap_pgoff+0x243/0x5f0 [ 37.388480] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 37.393214] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 37.397941] RIP: 0033:0x440179 [ 37.401104] RSP: 002b:00007ffc010ae7a8 EFLAGS: 00000217 ORIG_RAX: 0000000000000141 [ 37.408783] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 0000000000440179 [ 37.416027] RDX: 000000000000002c RSI: 00000000203dc000 RDI: 0000000000000000 [ 37.423268] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 37.430508] R10: 00000000ffffffff R11: 0000000000000217 R12: 00000000004016a0 [ 37.437759] R13: 0000000000401730 R14: 0000000000000000 R15: 0000000000000000 [ 37.445101] Mem-Info: [ 37.447927] active_anon:7895 inactive_anon:63 isolated_anon:0 [ 37.447927] active_file:46 inactive_file:11 isolated_file:0 [ 37.447927] unevictable:0 dirty:0 writeback:0 unstable:0 [ 37.447927] slab_reclaimable:7277 slab_unreclaimable:83247 [ 37.447927] mapped:11 shmem:70 pagetables:347 bounce:0 [ 37.447927] free:24260 free_pcp:4 free_cma:0 [ 37.480072] Node 0 active_anon:31580kB inactive_anon:252kB active_file:184kB inactive_file:44kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:44kB dirty:0kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 16384kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 37.507064] 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 [ 37.533192] lowmem_reserve[]: 0 2870 6381 6381 [ 37.537792] Node 0 DMA32 free:44332kB min:30328kB low:37908kB high:45488kB active_anon:28kB inactive_anon:4kB active_file:8kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2942312kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 37.565055] lowmem_reserve[]: 0 0 3510 3510 [ 37.569388] Node 0 Normal free:36800kB min:37084kB low:46352kB high:55620kB active_anon:31552kB inactive_anon:248kB active_file:132kB inactive_file:152kB unevictable:0kB writepending:0kB present:4718592kB managed:3594624kB mlocked:0kB kernel_stack:3136kB pagetables:1388kB bounce:0kB free_pcp:16kB local_pcp:0kB free_cma:0kB [ 37.598535] lowmem_reserve[]: 0 0 0 0 [ 37.602365] 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 [ 37.616106] Node 0 DMA32: 7*4kB (UM) 4*8kB (UM) 7*16kB (UM) 2*32kB (M) 3*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (UM) 3*1024kB (UM) 2*2048kB (M) 8*4096kB (M) = 44332kB [ 37.631670] Node 0 Normal: 567*4kB (UM) 443*8kB (UM) 270*16kB (UM) 154*32kB (UM) 56*64kB (UM) 43*128kB (UM) 35*256kB (M) 7*512kB (UM) 0*1024kB 0*2048kB 0*4096kB = 36692kB [ 37.647087] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 37.655663] 113 total pagecache pages [ 37.659461] 0 pages in swap cache [ 37.662904] Swap cache stats: add 0, delete 0, find 0/0 [ 37.668269] Free swap = 0kB [ 37.671286] Total swap = 0kB [ 37.674304] 1965979 pages RAM [ 37.677419] 0 pages HighMem/MovableOnly [ 37.681381] 327768 pages reserved [ 37.684870] Unreclaimable slab info: [ 37.688648] Name Used Total [ 37.694779] hashtab_node 118KB 119KB [ 37.700154] ebitmap_node 384KB 385KB [ 37.705520] avtab_node 1012KB 1013KB [ 37.710878] TIPC 1KB 7KB [ 37.716233] SCTPv6 2KB 4KB [ 37.721597] DCCPv6 2KB 7KB [ 37.726960] DCCP 2KB 6KB [ 37.732826] fib6_nodes 0KB 4KB [ 37.738189] ip6_dst_cache 5KB 11KB [ 37.743562] RAWv6 9KB 13KB [ 37.748924] UDPv6 14KB 14KB [ 37.754283] TCPv6 2KB 5KB [ 37.759655] sd_ext_cdb 0KB 3KB [ 37.765047] scsi_sense_cache 76KB 140KB [ 37.770411] virtio_scsi_cmd 16KB 16KB [ 37.775777] sgpool-128 8KB 8KB [ 37.781134] sgpool-64 4KB 6KB [ 37.786489] sgpool-32 63KB 63KB [ 37.791845] sgpool-16 26KB 26KB [ 37.797200] sgpool-8 165KB 165KB [ 37.802558] cfq_io_cq 15KB 19KB [ 37.808174] cfq_queue 24KB 30KB [ 37.813532] mqueue_inode_cache 1KB 7KB [ 37.818987] nfs_commit_data 3KB 7KB [ 37.824348] nfs_write_data 34KB 37KB [ 37.829707] jbd2_inode 1KB 3KB [ 37.835064] ext4_system_zone 0KB 3KB [ 37.840441] bio-1 1KB 3KB [ 37.845815] rpc_buffers 17KB 19KB [ 37.851171] rpc_tasks 2KB 3KB [ 37.856599] UNIX 773KB 773KB [ 37.861984] tcp_bind_bucket 0KB 4KB [ 37.867766] ip_fib_trie 0KB 3KB [ 37.873161] ip_fib_alias 0KB 3KB [ 37.878524] ip_dst_cache 3KB 8KB [ 37.883878] RAW 5KB 7KB [ 37.890025] UDP 29KB 39KB [ 37.895405] request_sock_TCP 0KB 3KB [ 37.900765] TCP 7KB 7KB [ 37.906119] hugetlbfs_inode_cache 1KB 7KB [ 37.911825] eventpoll_pwq 10KB 11KB [ 37.918056] eventpoll_epi 19KB 23KB [ 37.924366] inotify_inode_mark 3KB 7KB [ 37.929813] request_queue 42KB 113KB [ 37.935181] blkdev_ioc 20KB 27KB [ 37.940541] bio-0 281KB 281KB [ 37.945893] biovec-(1<<(21-12)) 470KB 470KB [ 37.951439] biovec-64 94KB 102KB [ 37.956808] biovec-16 10KB 15KB [ 37.963142] bio_integrity_payload 0KB 4KB [ 37.968852] khugepaged_mm_slot 1KB 3KB [ 37.974296] uid_cache 0KB 3KB [ 37.979665] dmaengine-unmap-2 0KB 3KB [ 37.985046] audit_buffer 0KB 3KB [ 37.990413] skbuff_fclone_cache 145KB 146KB [ 37.995941] skbuff_head_cache 2017KB 2017KB [ 38.001923] configfs_dir_cache 0KB 4KB [ 38.007965] file_lock_cache 165KB 166KB [ 38.013340] file_lock_ctx 1KB 3KB [ 38.018706] fsnotify_mark_connector 2KB 3KB [ 38.024583] shmem_inode_cache 1056KB 1058KB [ 38.029938] task_delay_info 325KB 343KB [ 38.035328] sigqueue 369KB 370KB [ 38.040692] kernfs_node_cache 2290KB 2291KB [ 38.046048] mnt_cache 15KB 20KB [ 38.051425] filp 8436KB 8902KB [ 38.056796] names_cache 111031KB 111069KB [ 38.062156] avc_node 38KB 43KB [ 38.067534] selinux_file_security 432KB 492KB [ 38.073256] selinux_inode_security 1954KB 1956KB [ 38.079065] key_jar 3KB 7KB [ 38.085308] nsproxy 0KB 3KB [ 38.090674] vm_area_struct 18755KB 18755KB [ 38.096030] mm_struct 4542KB 4546KB [ 38.102514] fs_cache 429KB 436KB [ 38.107867] files_cache 1599KB 1601KB [ 38.113236] signal_cache 2554KB 2558KB [ 38.120100] sighand_cache 233KB 346KB [ 38.127300] task_struct 10884KB 10884KB [ 38.135038] cred_jar 2362KB 2364KB [ 38.140577] anon_vma_chain 7867KB 7867KB [ 38.145947] anon_vma 168KB 327KB [ 38.151320] pid 222KB 240KB [ 38.157055] Acpi-Operand 106KB 170KB [ 38.162427] Acpi-State 0KB 3KB [ 38.167797] Acpi-Namespace 19KB 23KB [ 38.173437] numa_policy 0KB 3KB [ 38.178806] debug_objects_cache 344KB 345KB [ 38.184336] trace_event_file 145KB 147KB [ 38.189702] ftrace_event_field 257KB 259KB [ 38.195172] pool_workqueue 24KB 28KB [ 38.200535] page->ptl 3111KB 3111KB [ 38.205902] kmalloc-262144 1032KB 1032KB [ 38.211268] kmalloc-131072 650KB 650KB [ 38.216631] kmalloc-65536 264KB 264KB [ 38.221987] kmalloc-32768 825KB 825KB [ 38.227356] kmalloc-16384 181KB 181KB [ 38.232750] kmalloc-8192 519KB 519KB [ 38.238114] kmalloc-4096 6795KB 6834KB [ 38.243484] kmalloc-2048 3238KB 3238KB [ 38.248845] kmalloc-1024 3685KB 3685KB [ 38.254198] kmalloc-512 2790KB 2790KB [ 38.259568] kmalloc-256 1982KB 2531KB [ 38.264931] kmalloc-128 414KB 515KB [ 38.270286] kmalloc-96 2052KB 2052KB [ 38.275813] kmalloc-64 2472KB 2472KB [ 38.281184] kmalloc-32 2405KB 2405KB [ 38.286693] kmalloc-192 912KB 912KB [ 38.292050] kmem_cache 101KB 105KB [ 38.297420] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 38.306094] [ 1818] 0 1818 5385 175 86016 0 -1000 udevd [ 38.314289] [ 3354] 0 3354 2493 573 57344 0 0 dhclient [ 38.322690] [ 3505] 0 3505 14298 174 118784 0 0 rsyslogd [ 38.331113] [ 3560] 0 3560 4725 51 81920 0 0 cron [ 38.339192] [ 3566] 0 3566 3736 45 69632 0 0 mcstransd [ 38.347702] [ 3588] 0 3588 12490 152 135168 0 -1000 sshd [ 38.356112] [ 3600] 0 3600 12927 1228 139264 0 0 restorecond [ 38.364787] [ 3630] 0 3630 3694 41 77824 0 0 getty [ 38.372947] [ 3631] 0 3631 3694 42 73728 0 0 getty [ 38.381104] [ 3632] 0 3632 3694 41 77824 0 0 getty [ 38.389528] [ 3633] 0 3633 3694 39 77824 0 0 getty [ 38.397705] [ 3634] 0 3634 3694 40 73728 0 0 getty [ 38.405862] [ 3635] 0 3635 3694 39 77824 0 0 getty [ 38.414040] [ 3636] 0 3636 3649 40 73728 0 0 getty [ 38.422194] [ 3638] 0 3638 5681 454 86016 0 -1000 udevd [ 38.430346] [ 3639] 0 3639 5681 454 86016 0 -1000 udevd [ 38.438503] [ 3657] 0 3657 17821 197 184320 0 0 sshd [ 38.447094] [ 3659] 0 3659 280 1 32768 0 0 syzkaller998488 [ 38.456130] [ 3660] 0 3660 4043 521 36864 0 0 syzkaller998488 [ 38.465158] [ 3661] 0 3661 4043 521 36864 0 0 syzkaller998488 [ 38.474182] [ 3662] 0 3662 4043 521 36864 0 0 syzkaller998488 [ 38.483208] [ 3663] 0 3663 4043 521 36864 0 0 syzkaller998488 [ 38.492232] [ 3664] 0 3664 4043 521 36864 0 0 syzkaller998488 [ 38.501257] [ 3665] 0 3665 4043 521 36864 0 0 syzkaller998488 [ 38.510280] [ 3666] 0 3666 4043 521 36864 0 0 syzkaller998488 [ 38.520351] [ 3667] 0 3667 4043 521 36864 0 0 syzkaller998488 [ 38.532081] Out of memory: Kill process 3600 (restorecond) score 0 or sacrifice child [ 38.540587] Killed process 3600 (restorecond) total-vm:51708kB, anon-rss:4912kB, file-rss:0kB, shmem-rss:0kB [ 38.571622] rsyslogd invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=0 [ 38.583084] rsyslogd cpuset=/ mems_allowed=0 [ 38.587692] CPU: 0 PID: 3509 Comm: rsyslogd Not tainted 4.15.0-rc8+ #198 [ 38.595914] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.606121] Call Trace: [ 38.608699] dump_stack+0x194/0x257 [ 38.612315] ? arch_local_irq_restore+0x53/0x53 [ 38.616975] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 38.622166] dump_header+0x28c/0xe1e [ 38.625884] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 38.631076] ? pagefault_out_of_memory+0x152/0x152 [ 38.635996] ? check_noncircular+0x20/0x20 [ 38.640222] ? print_irqtrace_events+0x270/0x270 [ 38.644970] ? __lock_acquire+0x664/0x3e00 [ 38.649196] ? check_noncircular+0x20/0x20 [ 38.653433] ? find_held_lock+0x35/0x1d0 [ 38.657750] ? check_noncircular+0x20/0x20 [ 38.661964] ? task_will_free_mem+0x252/0xaa0 [ 38.666456] ? print_irqtrace_events+0x270/0x270 [ 38.671210] ? ___ratelimit+0x30d/0x630 [ 38.675350] ? lock_downgrade+0x980/0x980 [ 38.681054] ? lock_release+0xa40/0xa40 [ 38.686331] ? mark_held_locks+0xaf/0x100 [ 38.692128] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 38.697922] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 38.702914] ? trace_hardirqs_on+0xd/0x10 [ 38.707050] ? ___ratelimit+0x95/0x630 [ 38.710922] ? idr_get_free_cmn+0xfd0/0xfd0 [ 38.715224] ? check_noncircular+0x20/0x20 [ 38.719449] ? find_held_lock+0x138/0x1d0 [ 38.723599] oom_kill_process+0x8b5/0x14a0 [ 38.728093] ? has_ns_capability_noaudit+0x163/0x2a0 [ 38.735184] ? lock_downgrade+0x980/0x980 [ 38.739508] ? oom_evaluate_task+0x480/0x480 [ 38.743910] ? security_capable_noaudit+0x8b/0xc0 [ 38.748744] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 38.753839] ? has_capability+0x30/0x30 [ 38.757789] ? do_raw_spin_trylock+0x190/0x190 [ 38.762358] ? check_noncircular+0x20/0x20 [ 38.766593] ? has_capability_noaudit+0x24/0x30 [ 38.771276] ? oom_badness+0xd1/0x980 [ 38.775066] ? lock_release+0xa40/0xa40 [ 38.779028] ? do_try_to_free_pages+0xc53/0x1020 [ 38.783769] ? find_lock_task_mm+0x460/0x460 [ 38.788170] ? find_held_lock+0x35/0x1d0 [ 38.792235] ? out_of_memory+0xb3a/0x1220 [ 38.796378] ? lock_downgrade+0x980/0x980 [ 38.800521] ? lock_release+0xa40/0xa40 [ 38.804484] ? lock_acquire+0x1d5/0x580 [ 38.808450] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 38.813389] ? oom_evaluate_task+0x284/0x480 [ 38.817785] out_of_memory+0x86d/0x1220 [ 38.821736] ? trace_hardirqs_on+0xd/0x10 [ 38.825870] ? oom_killer_disable+0x310/0x310 [ 38.830352] ? mutex_trylock+0x23a/0x2d0 [ 38.834409] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 38.839842] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 38.845721] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 38.850594] ? warn_alloc+0x2b0/0x2b0 [ 38.854388] ? lock_downgrade+0x980/0x980 [ 38.858540] ? radix_tree_lookup_slot+0x99/0xe0 [ 38.863820] ? find_get_entry+0x53c/0x9e0 [ 38.867943] ? lock_downgrade+0x980/0x980 [ 38.872109] ? __lock_acquire+0x664/0x3e00 [ 38.876388] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 38.882280] ? __might_sleep+0x95/0x190 [ 38.886252] __alloc_pages_nodemask+0x9fb/0xd80 [ 38.890909] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 38.895903] ? add_to_page_cache_lru+0x510/0x510 [ 38.900659] ? check_noncircular+0x20/0x20 [ 38.904881] ? check_noncircular+0x20/0x20 [ 38.909124] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 38.913893] alloc_pages_current+0xb6/0x1e0 [ 38.918205] __page_cache_alloc+0x334/0x500 [ 38.922518] ? rcu_read_lock_held+0xa9/0xc0 [ 38.926825] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 38.934183] filemap_fault+0xefc/0x1c20 [ 38.938150] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 38.943363] ? __lock_page_or_retry+0x4f0/0x4f0 [ 38.948036] ? filemap_map_pages+0x942/0x15d0 [ 38.952542] ? find_get_entries_tag+0xeb0/0xeb0 [ 38.957202] ? __is_insn_slot_addr+0x1fc/0x330 [ 38.961771] ? lock_downgrade+0x980/0x980 [ 38.965899] ? check_noncircular+0x20/0x20 [ 38.970120] ? find_held_lock+0x35/0x1d0 [ 38.974173] ? print_irqtrace_events+0x270/0x270 [ 38.978909] ? print_irqtrace_events+0x270/0x270 [ 38.983652] ? is_bpf_text_address+0x7b/0x120 [ 38.988135] ? lock_downgrade+0x980/0x980 [ 38.992285] ? lock_acquire+0x1d5/0x580 [ 38.996250] ? lock_acquire+0x1d5/0x580 [ 39.000213] ? ext4_filemap_fault+0x7a/0xad [ 39.004525] ? __lock_acquire+0x664/0x3e00 [ 39.008751] ? lock_release+0xa40/0xa40 [ 39.012712] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 39.018585] ? is_bpf_text_address+0xa4/0x120 [ 39.023076] ? rcu_note_context_switch+0x710/0x710 [ 39.027991] ? __might_sleep+0x95/0x190 [ 39.031956] ? down_read+0x96/0x150 [ 39.035570] ? ext4_filemap_fault+0x7a/0xad [ 39.039875] ? __down_interruptible+0x6b0/0x6b0 [ 39.044535] ? do_syslog+0x8b5/0xb80 [ 39.048249] ext4_filemap_fault+0x82/0xad [ 39.052393] __do_fault+0xeb/0x30f [ 39.055915] ? vfs_read+0x11e/0x350 [ 39.059526] ? entry_SYSCALL_64_fastpath+0x29/0xa0 [ 39.064448] ? pte_offset_kernel+0xc7/0xc7 [ 39.068678] ? check_noncircular+0x20/0x20 [ 39.072898] ? check_noncircular+0x20/0x20 [ 39.077125] __handle_mm_fault+0x1d8f/0x3ce0 [ 39.081534] ? __pmd_alloc+0x4e0/0x4e0 [ 39.085423] ? find_held_lock+0x35/0x1d0 [ 39.089486] ? handle_mm_fault+0x248/0x8d0 [ 39.093707] ? lock_downgrade+0x980/0x980 [ 39.097860] handle_mm_fault+0x334/0x8d0 [ 39.102163] ? down_read_trylock+0xdb/0x170 [ 39.107770] ? __do_page_fault+0x32d/0xc90 [ 39.113608] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 39.118348] ? vmacache_find+0x5f/0x280 [ 39.122316] ? vmacache_update+0xfe/0x130 [ 39.126462] ? find_vma+0x30/0x150 [ 39.129988] __do_page_fault+0x5c9/0xc90 [ 39.134033] ? vfs_copy_file_range+0x940/0x940 [ 39.138615] ? mm_fault_error+0x2c0/0x2c0 [ 39.142754] ? avc_policy_seqno+0x9/0x20 [ 39.146801] do_page_fault+0xee/0x720 [ 39.150589] ? __do_page_fault+0xc90/0xc90 [ 39.154814] ? fput+0xd2/0x140 [ 39.157982] ? SyS_read+0x184/0x220 [ 39.161593] ? entry_SYSCALL_64_fastpath+0x55/0xa0 [ 39.166516] ? page_fault+0x36/0x60 [ 39.170134] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 39.174962] ? page_fault+0x36/0x60 [ 39.178573] page_fault+0x4c/0x60 [ 39.182008] RIP: 0033:0x7f3a3b7cc1fd [ 39.185872] RSP: 002b:00007f3a38d6be30 EFLAGS: 00010293 [ 39.191215] RAX: 000000000000011e RBX: 000000000210c4b0 RCX: 00007f3a3b7cc1fd [ 39.198469] RDX: 0000000000000fff RSI: 00007f3a3a5a05a0 RDI: 0000000000000004 [ 39.205722] RBP: 0000000000000000 R08: 00000000020f7260 R09: 0000000000000000 [ 39.212966] R10: 0000000000000011 R11: 0000000000000293 R12: 000000000065e420 [ 39.220477] R13: 00007f3a38d6c9c0 R14: 00007f3a3be11040 R15: 0000000000000003 [ 39.227804] Mem-Info: [ 39.230337] active_anon:6665 inactive_anon:63 isolated_anon:0 [ 39.230337] active_file:13 inactive_file:13 isolated_file:0 [ 39.230337] unevictable:0 dirty:0 writeback:0 unstable:0 [ 39.230337] slab_reclaimable:7277 slab_unreclaimable:83238 [ 39.230337] mapped:2 shmem:70 pagetables:319 bounce:0 [ 39.230337] free:24303 free_pcp:230 free_cma:0 [ 39.264045] Node 0 active_anon:26660kB inactive_anon:252kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 16384kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 39.291705] 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 [ 39.318632] lowmem_reserve[]: 0 2870 6381 6381 [ 39.324302] Node 0 DMA32 free:44332kB min:30328kB low:37908kB high:45488kB active_anon:28kB inactive_anon:4kB active_file:0kB inactive_file:8kB unevictable:0kB writepending:0kB present:3129332kB managed:2942312kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 39.351575] lowmem_reserve[]: 0 0 3510 3510 [ 39.355925] Node 0 Normal free:36972kB min:37084kB low:46352kB high:55620kB active_anon:26632kB inactive_anon:248kB active_file:52kB inactive_file:44kB unevictable:0kB writepending:0kB present:4718592kB managed:3594624kB mlocked:0kB kernel_stack:3104kB pagetables:1276kB bounce:0kB free_pcp:920kB local_pcp:120kB free_cma:0kB [ 39.384760] lowmem_reserve[]: 0 0 0 0 [ 39.388589] 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 [ 39.402557] Node 0 DMA32: 7*4kB (UM) 4*8kB (UM) 7*16kB (UM) 2*32kB (M) 3*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (UM) 3*1024kB (UM) 2*2048kB (M) 8*4096kB (M) = 44332kB [ 39.419100] Node 0 Normal: 551*4kB (UM) 442*8kB (M) 272*16kB (M) 172*32kB (UM) 82*64kB (UM) 40*128kB (M) 33*256kB (M) 5*512kB (M) 0*1024kB 0*2048kB 0*4096kB = 36972kB [ 39.438329] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 39.446905] 96 total pagecache pages [ 39.450633] 0 pages in swap cache [ 39.454100] Swap cache stats: add 0, delete 0, find 0/0 [ 39.459474] Free swap = 0kB [ 39.462501] Total swap = 0kB [ 39.465529] 1965979 pages RAM [ 39.468647] 0 pages HighMem/MovableOnly [ 39.472628] 327768 pages reserved [ 39.476163] Unreclaimable slab info: [ 39.479952] Name Used Total [ 39.485556] hashtab_node 118KB 119KB [ 39.490921] ebitmap_node 384KB 385KB [ 39.496295] avtab_node 1012KB 1013KB [ 39.501674] TIPC 1KB 7KB [ 39.507046] SCTPv6 2KB 4KB [ 39.512427] DCCPv6 2KB 7KB [ 39.517799] DCCP 2KB 6KB [ 39.523190] fib6_nodes 0KB 4KB [ 39.528570] ip6_dst_cache 5KB 11KB [ 39.533937] RAWv6 9KB 13KB [ 39.539314] UDPv6 14KB 14KB [ 39.544692] TCPv6 2KB 5KB [ 39.550086] sd_ext_cdb 0KB 3KB [ 39.555479] scsi_sense_cache 76KB 140KB [ 39.560853] virtio_scsi_cmd 16KB 16KB [ 39.566487] sgpool-128 8KB 8KB [ 39.571849] sgpool-64 4KB 6KB [ 39.577218] sgpool-32 63KB 63KB [ 39.582593] sgpool-16 26KB 26KB [ 39.587957] sgpool-8 165KB 165KB [ 39.593331] cfq_io_cq 15KB 19KB [ 39.598710] cfq_queue 24KB 30KB [ 39.604093] mqueue_inode_cache 1KB 7KB [ 39.609561] nfs_commit_data 3KB 7KB [ 39.614928] nfs_write_data 34KB 37KB [ 39.620308] jbd2_inode 1KB 3KB [ 39.625684] ext4_system_zone 0KB 3KB [ 39.631064] bio-1 1KB 3KB [ 39.636452] rpc_buffers 17KB 19KB [ 39.641817] rpc_tasks 2KB 3KB [ 39.647190] UNIX 773KB 773KB [ 39.652575] tcp_bind_bucket 0KB 4KB [ 39.657942] ip_fib_trie 0KB 3KB [ 39.663319] ip_fib_alias 0KB 3KB [ 39.668702] ip_dst_cache 3KB 8KB [ 39.674081] RAW 5KB 7KB [ 39.679453] UDP 29KB 39KB [ 39.684820] request_sock_TCP 0KB 3KB [ 39.690196] TCP 7KB 7KB [ 39.695560] hugetlbfs_inode_cache 1KB 7KB [ 39.701298] eventpoll_pwq 10KB 11KB [ 39.706663] eventpoll_epi 19KB 23KB [ 39.712188] inotify_inode_mark 3KB 7KB [ 39.717646] request_queue 42KB 113KB [ 39.723038] blkdev_ioc 20KB 27KB [ 39.728407] bio-0 281KB 281KB [ 39.733767] biovec-(1<<(21-12)) 470KB 470KB [ 39.739325] biovec-64 94KB 102KB [ 39.744709] biovec-16 10KB 15KB [ 39.750088] bio_integrity_payload 0KB 4KB [ 39.755804] khugepaged_mm_slot 1KB 3KB [ 39.761276] uid_cache 0KB 3KB [ 39.766655] dmaengine-unmap-2 0KB 3KB [ 39.772039] audit_buffer 0KB 3KB [ 39.777420] skbuff_fclone_cache 145KB 146KB [ 39.782957] skbuff_head_cache 2017KB 2017KB [ 39.788338] configfs_dir_cache 0KB 4KB [ 39.793792] file_lock_cache 165KB 166KB [ 39.799166] file_lock_ctx 1KB 3KB [ 39.804545] fsnotify_mark_connector 2KB 3KB [ 39.810441] shmem_inode_cache 1056KB 1058KB [ 39.815982] task_delay_info 325KB 343KB [ 39.821361] sigqueue 369KB 370KB [ 39.826726] kernfs_node_cache 2290KB 2291KB [ 39.832097] mnt_cache 15KB 20KB [ 39.837463] filp 8436KB 8902KB [ 39.842836] names_cache 111031KB 111069KB [ 39.848219] avc_node 38KB 43KB [ 39.855178] selinux_file_security 432KB 492KB [ 39.860890] selinux_inode_security 1954KB 1956KB [ 39.866695] key_jar 3KB 7KB [ 39.872080] nsproxy 0KB 3KB [ 39.877449] vm_area_struct 18755KB 18755KB [ 39.882820] mm_struct 4542KB 4546KB [ 39.888198] fs_cache 429KB 436KB [ 39.893910] files_cache 1599KB 1601KB [ 39.899270] signal_cache 2554KB 2558KB [ 39.904627] sighand_cache 233KB 346KB [ 39.910004] task_struct 10884KB 10884KB [ 39.915390] cred_jar 2362KB 2364KB [ 39.920751] anon_vma_chain 7867KB 7867KB [ 39.926124] anon_vma 168KB 327KB [ 39.931487] pid 222KB 240KB [ 39.936860] Acpi-Operand 106KB 170KB [ 39.942244] Acpi-State 0KB 3KB [ 39.947608] Acpi-Namespace 19KB 23KB [ 39.952982] numa_policy 0KB 3KB [ 39.958538] debug_objects_cache 344KB 345KB [ 39.964094] trace_event_file 145KB 147KB [ 39.969462] ftrace_event_field 257KB 259KB [ 39.974921] pool_workqueue 24KB 28KB [ 39.980302] page->ptl 3111KB 3111KB [ 39.985686] kmalloc-262144 1032KB 1032KB [ 39.991063] kmalloc-131072 650KB 650KB [ 39.996426] kmalloc-65536 264KB 264KB [ 40.001790] kmalloc-32768 825KB 825KB [ 40.007161] kmalloc-16384 181KB 181KB [ 40.012524] kmalloc-8192 519KB 519KB [ 40.017881] kmalloc-4096 6795KB 6834KB [ 40.023261] kmalloc-2048 3238KB 3238KB [ 40.028625] kmalloc-1024 3685KB 3685KB [ 40.033983] kmalloc-512 2790KB 2790KB [ 40.039362] kmalloc-256 1982KB 2531KB [ 40.044723] kmalloc-128 414KB 515KB [ 40.050097] kmalloc-96 2052KB 2052KB [ 40.055464] kmalloc-64 2472KB 2472KB [ 40.060832] kmalloc-32 2405KB 2405KB [ 40.066313] kmalloc-192 912KB 912KB [ 40.072039] kmem_cache 101KB 105KB [ 40.077415] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 40.086075] [ 1818] 0 1818 5385 175 86016 0 -1000 udevd [ 40.094351] [ 3354] 0 3354 2493 573 57344 0 0 dhclient [ 40.102804] [ 3505] 0 3505 14298 174 118784 0 0 rsyslogd [ 40.111238] [ 3560] 0 3560 4725 51 81920 0 0 cron [ 40.119299] [ 3566] 0 3566 3736 45 69632 0 0 mcstransd [ 40.127806] [ 3588] 0 3588 12490 152 135168 0 -1000 sshd [ 40.135892] [ 3630] 0 3630 3694 41 77824 0 0 getty [ 40.144077] [ 3631] 0 3631 3694 42 73728 0 0 getty [ 40.152231] [ 3632] 0 3632 3694 41 77824 0 0 getty [ 40.160403] [ 3633] 0 3633 3694 39 77824 0 0 getty [ 40.168571] [ 3634] 0 3634 3694 40 73728 0 0 getty [ 40.176737] [ 3635] 0 3635 3694 39 77824 0 0 getty [ 40.184904] [ 3636] 0 3636 3649 40 73728 0 0 getty [ 40.193072] [ 3638] 0 3638 5681 454 86016 0 -1000 udevd [ 40.201223] [ 3639] 0 3639 5681 454 86016 0 -1000 udevd [ 40.209382] [ 3657] 0 3657 17821 197 184320 0 0 sshd [ 40.217462] [ 3659] 0 3659 280 1 32768 0 0 syzkaller998488 [ 40.226481] [ 3660] 0 3660 4043 521 36864 0 0 syzkaller998488 [ 40.235507] [ 3661] 0 3661 4043 521 36864 0 0 syzkaller998488 [ 40.244524] [ 3662] 0 3662 4043 521 36864 0 0 syzkaller998488 [ 40.255050] [ 3663] 0 3663 4043 521 36864 0 0 syzkaller998488 [ 40.264095] [ 3664] 0 3664 4043 521 36864 0 0 syzkaller998488 [ 40.273115] [ 3665] 0 3665 4043 521 36864 0 0 syzkaller998488 [ 40.282142] [ 3666] 0 3666 4043 521 36864 0 0 syzkaller998488 [ 40.291172] [ 3667] 0 3667 4043 521 36864 0 0 syzkaller998488 [ 40.302539] Out of memory: Kill process 3354 (dhclient) score 0 or sacrifice child [ 40.310621] Killed process 3354 (dhclient) total-vm:9972kB, anon-rss:2292kB, file-rss:0kB, shmem-rss:0kB [ 40.325651] rsyslogd invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=0 [ 40.337627] rsyslogd cpuset=/ mems_allowed=0 [ 40.342103] CPU: 0 PID: 3509 Comm: rsyslogd Not tainted 4.15.0-rc8+ #198 [ 40.348933] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.358886] Call Trace: [ 40.362062] dump_stack+0x194/0x257 [ 40.366363] ? arch_local_irq_restore+0x53/0x53 [ 40.371015] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 40.376195] dump_header+0x28c/0xe1e [ 40.379898] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 40.385069] ? pagefault_out_of_memory+0x152/0x152 [ 40.389971] ? check_noncircular+0x20/0x20 [ 40.394185] ? print_irqtrace_events+0x270/0x270 [ 40.398935] ? __lock_acquire+0x664/0x3e00 [ 40.403765] ? check_noncircular+0x20/0x20 [ 40.407991] ? find_held_lock+0x35/0x1d0 [ 40.412046] ? check_noncircular+0x20/0x20 [ 40.416257] ? task_will_free_mem+0x252/0xaa0 [ 40.420735] ? print_irqtrace_events+0x270/0x270 [ 40.425474] ? ___ratelimit+0x30d/0x630 [ 40.429426] ? lock_downgrade+0x980/0x980 [ 40.433557] ? lock_release+0xa40/0xa40 [ 40.437509] ? mark_held_locks+0xaf/0x100 [ 40.441635] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 40.446716] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 40.451708] ? trace_hardirqs_on+0xd/0x10 [ 40.455832] ? ___ratelimit+0x95/0x630 [ 40.459696] ? idr_get_free_cmn+0xfd0/0xfd0 [ 40.463991] ? check_noncircular+0x20/0x20 [ 40.468204] ? find_held_lock+0x138/0x1d0 [ 40.472336] oom_kill_process+0x8b5/0x14a0 [ 40.476550] ? has_ns_capability_noaudit+0x163/0x2a0 [ 40.481982] ? lock_downgrade+0x980/0x980 [ 40.486821] ? oom_evaluate_task+0x480/0x480 [ 40.491221] ? security_capable_noaudit+0x8b/0xc0 [ 40.496044] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 40.501123] ? has_capability+0x30/0x30 [ 40.505074] ? do_raw_spin_trylock+0x190/0x190 [ 40.509647] ? check_noncircular+0x20/0x20 [ 40.513863] ? has_capability_noaudit+0x24/0x30 [ 40.518508] ? oom_badness+0xd1/0x980 [ 40.522281] ? lock_release+0xa40/0xa40 [ 40.526241] ? do_try_to_free_pages+0xc53/0x1020 [ 40.531582] ? find_lock_task_mm+0x460/0x460 [ 40.536931] ? find_held_lock+0x35/0x1d0 [ 40.540977] ? out_of_memory+0xb3a/0x1220 [ 40.545107] ? lock_downgrade+0x980/0x980 [ 40.549236] ? lock_release+0xa40/0xa40 [ 40.553188] ? lock_acquire+0x1d5/0x580 [ 40.557139] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 40.562056] ? oom_evaluate_task+0x284/0x480 [ 40.566446] out_of_memory+0x86d/0x1220 [ 40.570405] ? oom_killer_disable+0x310/0x310 [ 40.575400] ? mutex_trylock+0x23a/0x2d0 [ 40.579437] ? __lock_is_held+0xb6/0x140 [ 40.583474] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 40.588911] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 40.593775] ? warn_alloc+0x2b0/0x2b0 [ 40.597549] ? lock_downgrade+0x980/0x980 [ 40.601684] ? radix_tree_lookup_slot+0x99/0xe0 [ 40.606345] ? find_get_entry+0x53c/0x9e0 [ 40.611075] ? lock_downgrade+0x980/0x980 [ 40.616708] ? __lock_acquire+0x664/0x3e00 [ 40.620960] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 40.626831] ? __might_sleep+0x95/0x190 [ 40.630785] __alloc_pages_nodemask+0x9fb/0xd80 [ 40.635438] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 40.640431] ? add_to_page_cache_lru+0x510/0x510 [ 40.645169] ? check_noncircular+0x20/0x20 [ 40.649380] ? check_noncircular+0x20/0x20 [ 40.653595] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 40.658346] alloc_pages_current+0xb6/0x1e0 [ 40.662649] __page_cache_alloc+0x334/0x500 [ 40.666947] ? rcu_read_lock_held+0xa9/0xc0 [ 40.671249] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 40.678595] filemap_fault+0xefc/0x1c20 [ 40.682541] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 40.687719] ? __lock_page_or_retry+0x4f0/0x4f0 [ 40.692371] ? filemap_map_pages+0x942/0x15d0 [ 40.696854] ? find_get_entries_tag+0xeb0/0xeb0 [ 40.701500] ? __is_insn_slot_addr+0x1fc/0x330 [ 40.706060] ? lock_downgrade+0x980/0x980 [ 40.710188] ? check_noncircular+0x20/0x20 [ 40.714400] ? find_held_lock+0x35/0x1d0 [ 40.718436] ? print_irqtrace_events+0x270/0x270 [ 40.723167] ? print_irqtrace_events+0x270/0x270 [ 40.727903] ? is_bpf_text_address+0x7b/0x120 [ 40.732375] ? lock_downgrade+0x980/0x980 [ 40.736508] ? lock_acquire+0x1d5/0x580 [ 40.740454] ? lock_acquire+0x1d5/0x580 [ 40.744841] ? ext4_filemap_fault+0x7a/0xad [ 40.749142] ? __lock_acquire+0x664/0x3e00 [ 40.753355] ? lock_release+0xa40/0xa40 [ 40.758086] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 40.764206] ? is_bpf_text_address+0xa4/0x120 [ 40.768678] ? rcu_note_context_switch+0x710/0x710 [ 40.773587] ? __might_sleep+0x95/0x190 [ 40.777542] ? down_read+0x96/0x150 [ 40.781142] ? ext4_filemap_fault+0x7a/0xad [ 40.785440] ? __down_interruptible+0x6b0/0x6b0 [ 40.790087] ? do_syslog+0x8b5/0xb80 [ 40.793792] ext4_filemap_fault+0x82/0xad [ 40.797919] __do_fault+0xeb/0x30f [ 40.801431] ? vfs_read+0x11e/0x350 [ 40.805035] ? entry_SYSCALL_64_fastpath+0x29/0xa0 [ 40.809940] ? pte_offset_kernel+0xc7/0xc7 [ 40.814155] ? check_noncircular+0x20/0x20 [ 40.818371] ? check_noncircular+0x20/0x20 [ 40.822587] __handle_mm_fault+0x1d8f/0x3ce0 [ 40.826977] ? __pmd_alloc+0x4e0/0x4e0 [ 40.830847] ? find_held_lock+0x35/0x1d0 [ 40.834890] ? handle_mm_fault+0x248/0x8d0 [ 40.839100] ? lock_downgrade+0x980/0x980 [ 40.843249] handle_mm_fault+0x334/0x8d0 [ 40.847286] ? down_read_trylock+0xdb/0x170 [ 40.851583] ? __do_page_fault+0x32d/0xc90 [ 40.855794] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 40.860982] ? vmacache_find+0x5f/0x280 [ 40.864934] ? vmacache_update+0xfe/0x130 [ 40.870624] ? find_vma+0x30/0x150 [ 40.874144] __do_page_fault+0x5c9/0xc90 [ 40.878187] ? vfs_copy_file_range+0x940/0x940 [ 40.882754] ? mm_fault_error+0x2c0/0x2c0 [ 40.887150] ? avc_policy_seqno+0x9/0x20 [ 40.891204] do_page_fault+0xee/0x720 [ 40.895851] ? __do_page_fault+0xc90/0xc90 [ 40.900068] ? fput+0xd2/0x140 [ 40.903237] ? SyS_read+0x184/0x220 [ 40.906844] ? entry_SYSCALL_64_fastpath+0x55/0xa0 [ 40.911750] ? page_fault+0x36/0x60 [ 40.915700] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 40.922515] ? page_fault+0x36/0x60 [ 40.926387] page_fault+0x4c/0x60 [ 40.929815] RIP: 0033:0x7f3a3b7cc1fd [ 40.933498] RSP: 002b:00007f3a38d6be30 EFLAGS: 00010293 [ 40.938839] RAX: 000000000000011e RBX: 000000000210c4b0 RCX: 00007f3a3b7cc1fd [ 40.946086] RDX: 0000000000000fff RSI: 00007f3a3a5a05a0 RDI: 0000000000000004 [ 40.953333] RBP: 0000000000000000 R08: 00000000020f7260 R09: 0000000000000000 [ 40.961878] R10: 0000000000000011 R11: 0000000000000293 R12: 000000000065e420 [ 40.969729] R13: 00007f3a38d6c9c0 R14: 00007f3a3be11040 R15: 0000000000000003 [ 40.977138] Mem-Info: [ 40.981339] active_anon:6092 inactive_anon:63 isolated_anon:0 [ 40.981339] active_file:13 inactive_file:25 isolated_file:0 [ 40.981339] unevictable:0 dirty:0 writeback:0 unstable:0 [ 40.981339] slab_reclaimable:7278 slab_unreclaimable:83243 [ 40.981339] mapped:2 shmem:70 pagetables:310 bounce:0 [ 40.981339] free:24200 free_pcp:149 free_cma:0 [ 41.013838] Node 0 active_anon:24368kB inactive_anon:252kB active_file:44kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 16384kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 41.040612] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 41.066781] lowmem_reserve[]: 0 2870 6381 6381 [ 41.071403] Node 0 DMA32 free:44332kB min:30328kB low:37908kB high:45488kB active_anon:28kB inactive_anon:4kB active_file:0kB inactive_file:8kB unevictable:0kB writepending:0kB present:3129332kB managed:2942312kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 41.098685] lowmem_reserve[]: 0 0 3510 3510 [ 41.103041] Node 0 Normal free:36560kB min:37084kB low:46352kB high:55620kB active_anon:24340kB inactive_anon:248kB active_file:52kB inactive_file:160kB unevictable:0kB writepending:0kB present:4718592kB managed:3594624kB mlocked:0kB kernel_stack:3104kB pagetables:1240kB bounce:0kB free_pcp:4kB local_pcp:0kB free_cma:0kB [ 41.135625] lowmem_reserve[]: 0 0 0 0 [ 41.140966] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 41.155609] Node 0 DMA32: 7*4kB (UM) 4*8kB (UM) 7*16kB (UM) 2*32kB (M) 3*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (UM) 3*1024kB (UM) 2*2048kB (M) 8*4096kB (M) = 44332kB [ 41.171170] Node 0 Normal: 442*4kB (UME) 378*8kB (UME) 251*16kB (UME) 187*32kB (UM) 88*64kB (UME) 50*128kB (M) 33*256kB (M) 4*512kB (UM) 0*1024kB 0*2048kB 0*4096kB = 37320kB [ 41.186850] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 41.195443] 109 total pagecache pages [ 41.199266] 0 pages in swap cache [ 41.203032] Swap cache stats: add 0, delete 0, find 0/0 [ 41.208664] Free swap = 0kB [ 41.211688] Total swap = 0kB [ 41.214720] 1965979 pages RAM [ 41.217837] 0 pages HighMem/MovableOnly [ 41.221820] 327768 pages reserved [ 41.225286] Unreclaimable slab info: [ 41.229029] Name Used Total [ 41.234583] hashtab_node 118KB 119KB [ 41.239959] ebitmap_node 384KB 385KB [ 41.245321] avtab_node 1012KB 1013KB [ 41.250704] TIPC 1KB 7KB [ 41.256099] SCTPv6 2KB 4KB [ 41.261480] DCCPv6 2KB 7KB [ 41.267664] DCCP 2KB 6KB [ 41.273066] fib6_nodes 0KB 4KB [ 41.278443] ip6_dst_cache 5KB 11KB [ 41.283823] RAWv6 9KB 13KB [ 41.289202] UDPv6 14KB 14KB [ 41.294583] TCPv6 2KB 5KB [ 41.299976] sd_ext_cdb 0KB 3KB [ 41.305359] scsi_sense_cache 76KB 140KB [ 41.310738] virtio_scsi_cmd 16KB 16KB [ 41.316118] sgpool-128 8KB 8KB [ 41.321494] sgpool-64 4KB 6KB [ 41.327130] sgpool-32 70KB 70KB [ 41.332506] sgpool-16 26KB 26KB [ 41.337914] sgpool-8 168KB 168KB [ 41.348727] cfq_io_cq 15KB 19KB [ 41.354132] cfq_queue 24KB 30KB [ 41.359514] mqueue_inode_cache 1KB 7KB [ 41.364980] nfs_commit_data 3KB 7KB [ 41.370363] nfs_write_data 34KB 37KB [ 41.375747] jbd2_inode 1KB 3KB [ 41.381123] ext4_system_zone 0KB 3KB [ 41.386508] bio-1 1KB 3KB [ 41.393455] rpc_buffers 17KB 19KB [ 41.400753] rpc_tasks 2KB 3KB [ 41.406167] UNIX 773KB 773KB [ 41.414372] tcp_bind_bucket 0KB 4KB [ 41.426150] ip_fib_trie 0KB 3KB [ 41.431535] ip_fib_alias 0KB 3KB [ 41.443587] ip_dst_cache 3KB 8KB [ 41.455468] RAW 5KB 7KB [ 41.461114] UDP 29KB 39KB [ 41.473778] request_sock_TCP 0KB 3KB [ 41.485515] TCP 7KB 7KB [ 41.490909] hugetlbfs_inode_cache 1KB 7KB [ 41.496644] eventpoll_pwq 10KB 11KB [ 41.502037] eventpoll_epi 19KB 23KB [ 41.507416] inotify_inode_mark 3KB 7KB [ 41.512884] request_queue 42KB 113KB [ 41.518262] blkdev_ioc 20KB 27KB [ 41.523643] bio-0 281KB 281KB [ 41.529463] biovec-(1<<(21-12)) 470KB 470KB [ 41.535024] biovec-64 102KB 102KB [ 41.540384] biovec-16 10KB 15KB [ 41.545735] bio_integrity_payload 0KB 4KB [ 41.551432] khugepaged_mm_slot 1KB 3KB [ 41.556883] uid_cache 0KB 3KB [ 41.562235] dmaengine-unmap-2 0KB 3KB [ 41.567594] audit_buffer 0KB 3KB [ 41.572953] skbuff_fclone_cache 145KB 146KB [ 41.578486] skbuff_head_cache 2017KB 2017KB [ 41.583837] configfs_dir_cache 0KB 4KB [ 41.589275] file_lock_cache 165KB 166KB [ 41.594626] file_lock_ctx 1KB 3KB [ 41.599981] fsnotify_mark_connector 2KB 3KB [ 41.605856] shmem_inode_cache 1056KB 1058KB [ 41.611205] task_delay_info 325KB 343KB [ 41.616554] sigqueue 369KB 370KB [ 41.621913] kernfs_node_cache 2290KB 2291KB [ 41.627265] mnt_cache 15KB 20KB [ 41.632633] filp 8436KB 8902KB [ 41.637984] names_cache 111031KB 111069KB [ 41.643338] avc_node 38KB 43KB [ 41.648687] selinux_file_security 432KB 492KB [ 41.654383] selinux_inode_security 1954KB 1956KB [ 41.660596] key_jar 3KB 7KB [ 41.665949] nsproxy 0KB 3KB [ 41.671299] vm_area_struct 18755KB 18755KB [ 41.676658] mm_struct 4542KB 4546KB [ 41.682024] fs_cache 429KB 436KB [ 41.687379] files_cache 1599KB 1601KB [ 41.692730] signal_cache 2554KB 2558KB [ 41.698419] sighand_cache 233KB 346KB [ 41.703780] task_struct 10884KB 10884KB [ 41.709131] cred_jar 2362KB 2364KB [ 41.714492] anon_vma_chain 7867KB 7867KB [ 41.719842] anon_vma 168KB 327KB [ 41.725192] pid 222KB 240KB [ 41.730548] Acpi-Operand 106KB 170KB [ 41.735902] Acpi-State 0KB 3KB [ 41.741252] Acpi-Namespace 19KB 23KB [ 41.746616] numa_policy 0KB 3KB [ 41.751967] debug_objects_cache 344KB 345KB [ 41.757493] trace_event_file 145KB 147KB [ 41.762881] ftrace_event_field 257KB 259KB [ 41.769023] pool_workqueue 24KB 28KB [ 41.774374] page->ptl 3111KB 3111KB [ 41.779737] kmalloc-262144 1032KB 1032KB [ 41.785088] kmalloc-131072 650KB 650KB [ 41.790437] kmalloc-65536 264KB 264KB [ 41.796246] kmalloc-32768 825KB 825KB [ 41.801601] kmalloc-16384 181KB 181KB [ 41.806954] kmalloc-8192 519KB 519KB [ 41.812304] kmalloc-4096 6795KB 6834KB [ 41.817656] kmalloc-2048 3238KB 3238KB [ 41.823021] kmalloc-1024 3701KB 3701KB [ 41.828371] kmalloc-512 2790KB 2790KB [ 41.833721] kmalloc-256 1982KB 2531KB [ 41.839097] kmalloc-128 414KB 515KB [ 41.844455] kmalloc-96 2056KB 2056KB [ 41.849815] kmalloc-64 2476KB 2476KB [ 41.855165] kmalloc-32 2405KB 2405KB [ 41.860521] kmalloc-192 912KB 912KB [ 41.865879] kmem_cache 101KB 105KB [ 41.871228] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 41.879832] [ 1818] 0 1818 5385 175 86016 0 -1000 udevd [ 41.887967] [ 3505] 0 3505 14298 174 118784 0 0 rsyslogd [ 41.896379] [ 3560] 0 3560 4725 50 81920 0 0 cron [ 41.904424] [ 3566] 0 3566 3736 45 69632 0 0 mcstransd [ 41.912913] [ 3588] 0 3588 12490 152 135168 0 -1000 sshd [ 41.920964] [ 3630] 0 3630 3694 41 77824 0 0 getty [ 41.929112] [ 3631] 0 3631 3694 42 73728 0 0 getty [ 41.937255] [ 3632] 0 3632 3694 41 77824 0 0 getty [ 41.945406] [ 3633] 0 3633 3694 39 77824 0 0 getty [ 41.953588] [ 3634] 0 3634 3694 40 73728 0 0 getty [ 41.961755] [ 3635] 0 3635 3694 39 77824 0 0 getty [ 41.969905] [ 3636] 0 3636 3649 40 73728 0 0 getty [ 41.978064] [ 3638] 0 3638 5681 454 86016 0 -1000 udevd [ 41.986209] [ 3639] 0 3639 5681 454 86016 0 -1000 udevd [ 41.994371] [ 3657] 0 3657 17821 197 184320 0 0 sshd [ 42.002428] [ 3659] 0 3659 280 1 32768 0 0 syzkaller998488 [ 42.011452] [ 3660] 0 3660 4043 521 36864 0 0 syzkaller998488 [ 42.020484] [ 3661] 0 3661 4043 521 36864 0 0 syzkaller998488 [ 42.029509] [ 3662] 0 3662 4043 521 36864 0 0 syzkaller998488 [ 42.038522] [ 3663] 0 3663 4043 521 36864 0 0 syzkaller998488 [ 42.047547] [ 3664] 0 3664 4043 521 36864 0 0 syzkaller998488 [ 42.056576] [ 3665] 0 3665 4043 521 36864 0 0 syzkaller998488 [ 42.065610] [ 3666] 0 3666 4043 521 36864 0 0 syzkaller998488 [ 42.074626] [ 3667] 0 3667 4043 521 36864 0 0 syzkaller998488 [ 42.083646] Out of memory: Kill process 3660 (syzkaller998488) score 0 or sacrifice child [ 42.092079] Killed process 3660 (syzkaller998488) total-vm:16172kB, anon-rss:2084kB, file-rss:0kB, shmem-rss:0kB [ 42.104961] oom_reaper: reaped process 3660 (syzkaller998488), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 42.155832] syzkaller998488 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 42.168263] syzkaller998488 cpuset=/ mems_allowed=0 [ 42.173330] CPU: 1 PID: 3665 Comm: syzkaller998488 Not tainted 4.15.0-rc8+ #198 [ 42.180763] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.190104] Call Trace: [ 42.192683] dump_stack+0x194/0x257 [ 42.196305] ? arch_local_irq_restore+0x53/0x53 [ 42.200965] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 42.206157] dump_header+0x28c/0xe1e [ 42.209861] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 42.215034] ? pagefault_out_of_memory+0x152/0x152 [ 42.219934] ? check_noncircular+0x20/0x20 [ 42.224143] ? print_irqtrace_events+0x270/0x270 [ 42.228874] ? __lock_acquire+0x664/0x3e00 [ 42.233085] ? check_noncircular+0x20/0x20 [ 42.237295] ? find_held_lock+0x35/0x1d0 [ 42.241334] ? check_noncircular+0x20/0x20 [ 42.245538] ? task_will_free_mem+0x252/0xaa0 [ 42.250033] ? print_irqtrace_events+0x270/0x270 [ 42.254767] ? ___ratelimit+0x30d/0x630 [ 42.258713] ? lock_downgrade+0x980/0x980 [ 42.262834] ? lock_release+0xa40/0xa40 [ 42.266786] ? mark_held_locks+0xaf/0x100 [ 42.270908] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 42.276004] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 42.280998] ? trace_hardirqs_on+0xd/0x10 [ 42.285124] ? ___ratelimit+0x95/0x630 [ 42.288984] ? idr_get_free_cmn+0xfd0/0xfd0 [ 42.293277] ? check_noncircular+0x20/0x20 [ 42.297484] ? find_held_lock+0x138/0x1d0 [ 42.301620] oom_kill_process+0x8b5/0x14a0 [ 42.305830] ? has_ns_capability_noaudit+0x163/0x2a0 [ 42.310907] ? lock_downgrade+0x980/0x980 [ 42.315038] ? oom_evaluate_task+0x480/0x480 [ 42.319429] ? security_capable_noaudit+0x8b/0xc0 [ 42.324247] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 42.329321] ? has_capability+0x30/0x30 [ 42.333266] ? do_raw_spin_trylock+0x190/0x190 [ 42.337818] ? check_noncircular+0x20/0x20 [ 42.342037] ? has_capability_noaudit+0x24/0x30 [ 42.346679] ? oom_badness+0xd1/0x980 [ 42.350450] ? lock_release+0xa40/0xa40 [ 42.354396] ? do_try_to_free_pages+0xc53/0x1020 [ 42.359126] ? find_lock_task_mm+0x460/0x460 [ 42.363510] ? find_held_lock+0x35/0x1d0 [ 42.367555] ? out_of_memory+0xb3a/0x1220 [ 42.371674] ? lock_downgrade+0x980/0x980 [ 42.375796] ? lock_release+0xa40/0xa40 [ 42.379747] ? lock_acquire+0x1d5/0x580 [ 42.383694] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 42.388602] ? oom_evaluate_task+0x284/0x480 [ 42.392995] out_of_memory+0x86d/0x1220 [ 42.396952] ? oom_killer_disable+0x310/0x310 [ 42.401417] ? mutex_trylock+0x23a/0x2d0 [ 42.405451] ? __lock_is_held+0xb6/0x140 [ 42.409482] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 42.414914] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 42.419754] ? warn_alloc+0x2b0/0x2b0 [ 42.423524] ? check_noncircular+0x20/0x20 [ 42.427737] ? print_irqtrace_events+0x270/0x270 [ 42.432470] ? check_noncircular+0x20/0x20 [ 42.436672] ? find_held_lock+0x35/0x1d0 [ 42.440709] ? lock_acquire+0x1d5/0x580 [ 42.444653] ? lock_acquire+0x1d5/0x580 [ 42.448603] ? __lock_acquire+0x664/0x3e00 [ 42.452813] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 42.458668] ? lock_release+0xa40/0xa40 [ 42.462630] ? __lock_is_held+0xb6/0x140 [ 42.466674] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 42.472540] ? __might_sleep+0x95/0x190 [ 42.476489] __alloc_pages_nodemask+0x9fb/0xd80 [ 42.481129] ? lock_release+0xa40/0xa40 [ 42.485081] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 42.490075] ? pcpu_chunk_refresh_hint+0x425/0x570 [ 42.494979] ? print_irqtrace_events+0x270/0x270 [ 42.499712] ? __lock_is_held+0xb6/0x140 [ 42.503754] ? find_next_bit+0x27/0x30 [ 42.507618] pcpu_populate_chunk+0x1b3/0x880 [ 42.512014] pcpu_alloc+0x978/0x10e0 [ 42.515716] ? pcpu_free_area+0xa00/0xa00 [ 42.519839] ? vmap_page_range_noflush+0x523/0x720 [ 42.524762] ? retint_kernel+0x10/0x10 [ 42.528624] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 42.533613] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 42.538347] ? retint_kernel+0x10/0x10 [ 42.542227] __alloc_percpu_gfp+0x27/0x30 [ 42.546352] array_map_alloc+0x794/0x990 [ 42.550391] ? perf_event_fd_array_get_ptr+0x230/0x230 [ 42.555644] SyS_bpf+0x93c/0x4840 [ 42.559069] ? check_noncircular+0x20/0x20 [ 42.563283] ? bpf_prog_get+0x20/0x20 [ 42.567060] ? perf_event_fork+0x30/0x30 [ 42.571099] ? __lock_is_held+0xb6/0x140 [ 42.575134] ? check_noncircular+0x20/0x20 [ 42.579347] ? __handle_mm_fault+0x80e/0x3ce0 [ 42.583828] ? check_noncircular+0x20/0x20 [ 42.588036] ? __pmd_alloc+0x4e0/0x4e0 [ 42.591894] ? vma_link+0xe9/0x170 [ 42.595409] ? find_held_lock+0x35/0x1d0 [ 42.599458] ? handle_mm_fault+0x248/0x8d0 [ 42.603666] ? find_held_lock+0x35/0x1d0 [ 42.607706] ? __do_page_fault+0x5f7/0xc90 [ 42.611912] ? lock_downgrade+0x980/0x980 [ 42.616043] ? handle_mm_fault+0x410/0x8d0 [ 42.620248] ? down_read_trylock+0xdb/0x170 [ 42.624539] ? __do_page_fault+0x32d/0xc90 [ 42.628757] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 42.633310] ? vmacache_find+0x5f/0x280 [ 42.637255] ? vmacache_update+0xfe/0x130 [ 42.641381] ? up_read+0x1a/0x40 [ 42.644719] ? __do_page_fault+0x3d6/0xc90 [ 42.648932] ? mm_fault_error+0x2c0/0x2c0 [ 42.653063] ? do_page_fault+0xee/0x720 [ 42.657014] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 42.662532] ? __do_page_fault+0xc90/0xc90 [ 42.666746] ? SyS_mmap_pgoff+0x243/0x5f0 [ 42.670875] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 42.675608] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 42.680334] RIP: 0033:0x440179 [ 42.683496] RSP: 002b:00007ffc010ae7a8 EFLAGS: 00000217 ORIG_RAX: 0000000000000141 [ 42.691199] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 0000000000440179 [ 42.698442] RDX: 000000000000002c RSI: 00000000203dc000 RDI: 0000000000000000 [ 42.705683] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 42.712924] R10: 00000000ffffffff R11: 0000000000000217 R12: 00000000004016a0 [ 42.720164] R13: 0000000000401730 R14: 0000000000000000 R15: 0000000000000000 [ 42.727504] Mem-Info: [ 42.730742] active_anon:5575 inactive_anon:63 isolated_anon:0 [ 42.730742] active_file:27 inactive_file:0 isolated_file:0 [ 42.730742] unevictable:0 dirty:0 writeback:0 unstable:0 [ 42.730742] slab_reclaimable:7279 slab_unreclaimable:83248 [ 42.730742] mapped:3 shmem:70 pagetables:309 bounce:0 [ 42.730742] free:24336 free_pcp:0 free_cma:0 [ 42.762618] Node 0 active_anon:22300kB inactive_anon:252kB active_file:52kB inactive_file:200kB unevictable:0kB isolated(anon):0kB isolated(file):52kB mapped:8kB dirty:0kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 14336kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 42.789686] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 42.815810] lowmem_reserve[]: 0 2870 6381 6381 [ 42.820396] Node 0 DMA32 free:44332kB min:30328kB low:37908kB high:45488kB active_anon:28kB inactive_anon:4kB active_file:4kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2942312kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 42.847631] lowmem_reserve[]: 0 0 3510 3510 [ 42.851955] Node 0 Normal free:36596kB min:37084kB low:46352kB high:55620kB active_anon:22272kB inactive_anon:248kB active_file:48kB inactive_file:0kB unevictable:0kB writepending:0kB present:4718592kB managed:3594624kB mlocked:0kB kernel_stack:3072kB pagetables:1236kB bounce:0kB free_pcp:312kB local_pcp:0kB free_cma:0kB [ 42.880927] lowmem_reserve[]: 0 0 0 0 [ 42.884757] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 42.898362] Node 0 DMA32: 7*4kB (UM) 4*8kB (UM) 7*16kB (UM) 2*32kB (M) 3*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (UM) 3*1024kB (UM) 2*2048kB (M) 8*4096kB (M) = 44332kB [ 42.913856] Node 0 Normal: 309*4kB (UME) 380*8kB (ME) 248*16kB (UME) 184*32kB (M) 83*64kB (M) 50*128kB (M) 34*256kB (UM) 4*512kB (UM) 0*1024kB 0*2048kB 0*4096kB = 36596kB [ 42.929257] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 42.937819] 201 total pagecache pages [ 42.941697] 0 pages in swap cache [ 42.945145] Swap cache stats: add 0, delete 0, find 0/0 [ 42.950500] Free swap = 0kB [ 42.953506] Total swap = 0kB [ 42.956507] 1965979 pages RAM [ 42.959595] 0 pages HighMem/MovableOnly [ 42.963556] 327768 pages reserved [ 42.966999] Unreclaimable slab info: [ 42.970703] Name Used Total [ 42.976227] hashtab_node 118KB 119KB [ 42.981577] ebitmap_node 384KB 385KB [ 42.986953] avtab_node 1012KB 1013KB [ 42.992339] TIPC 1KB 7KB [ 42.997730] SCTPv6 2KB 4KB [ 43.003112] DCCPv6 2KB 7KB [ 43.009304] DCCP 2KB 6KB [ 43.014711] fib6_nodes 0KB 4KB [ 43.020089] ip6_dst_cache 5KB 11KB [ 43.025469] RAWv6 9KB 13KB [ 43.030849] UDPv6 14KB 14KB [ 43.036218] TCPv6 2KB 5KB [ 43.041607] sd_ext_cdb 0KB 3KB [ 43.046984] scsi_sense_cache 84KB 140KB [ 43.052362] virtio_scsi_cmd 16KB 16KB [ 43.057739] sgpool-128 8KB 8KB [ 43.063103] sgpool-64 4KB 6KB [ 43.068475] sgpool-32 70KB 70KB [ 43.073852] sgpool-16 30KB 30KB [ 43.079214] sgpool-8 172KB 172KB [ 43.084590] cfq_io_cq 17KB 19KB [ 43.089965] cfq_queue 29KB 30KB [ 43.095344] mqueue_inode_cache 1KB 7KB [ 43.100805] nfs_commit_data 3KB 7KB [ 43.106235] nfs_write_data 34KB 37KB [ 43.111634] jbd2_inode 1KB 3KB [ 43.117042] ext4_system_zone 0KB 3KB [ 43.122425] bio-1 1KB 3KB [ 43.127807] rpc_buffers 17KB 19KB [ 43.133183] rpc_tasks 2KB 3KB [ 43.139382] UNIX 773KB 773KB [ 43.144769] tcp_bind_bucket 0KB 4KB [ 43.150146] ip_fib_trie 0KB 3KB [ 43.155525] ip_fib_alias 0KB 3KB [ 43.160900] ip_dst_cache 3KB 8KB [ 43.166277] RAW 5KB 7KB [ 43.171661] UDP 29KB 39KB [ 43.177037] request_sock_TCP 0KB 3KB [ 43.182411] TCP 7KB 7KB [ 43.187787] hugetlbfs_inode_cache 1KB 7KB [ 43.193512] eventpoll_pwq 10KB 11KB [ 43.198888] eventpoll_epi 19KB 23KB [ 43.204293] inotify_inode_mark 3KB 7KB [ 43.216078] request_queue 42KB 113KB [ 43.221495] blkdev_ioc 20KB 27KB [ 43.228917] bio-0 288KB 288KB [ 43.240609] biovec-(1<<(21-12)) 470KB 470KB [ 43.246193] biovec-64 102KB 102KB [ 43.258178] biovec-16 15KB 15KB [ 43.270072] bio_integrity_payload 0KB 4KB [ 43.282890] khugepaged_mm_slot 1KB 3KB [ 43.288369] uid_cache 0KB 3KB [ 43.294170] dmaengine-unmap-2 0KB 3KB [ 43.305832] audit_buffer 0KB 3KB [ 43.311218] skbuff_fclone_cache 145KB 146KB [ 43.323621] skbuff_head_cache 2017KB 2017KB [ 43.335530] configfs_dir_cache 0KB 4KB [ 43.341006] file_lock_cache 165KB 166KB [ 43.346404] file_lock_ctx 1KB 3KB [ 43.351778] fsnotify_mark_connector 2KB 3KB [ 43.357675] shmem_inode_cache 1056KB 1058KB [ 43.363052] task_delay_info 325KB 343KB [ 43.368427] sigqueue 369KB 370KB [ 43.374064] kernfs_node_cache 2290KB 2291KB [ 43.379441] mnt_cache 15KB 20KB [ 43.384819] filp 8436KB 8902KB [ 43.390193] names_cache 111031KB 111069KB [ 43.395568] avc_node 38KB 43KB [ 43.400958] selinux_file_security 432KB 492KB [ 43.406681] selinux_inode_security 1954KB 1956KB [ 43.413287] key_jar 3KB 7KB [ 43.418665] nsproxy 0KB 3KB [ 43.424038] vm_area_struct 18755KB 18755KB [ 43.429413] mm_struct 4542KB 4546KB [ 43.434791] fs_cache 429KB 436KB [ 43.440165] files_cache 1599KB 1601KB [ 43.445539] signal_cache 2554KB 2558KB [ 43.450914] sighand_cache 233KB 346KB [ 43.456289] task_struct 10884KB 10884KB [ 43.461664] cred_jar 2362KB 2364KB [ 43.467064] anon_vma_chain 7867KB 7867KB [ 43.478929] anon_vma 168KB 327KB [ 43.484316] pid 222KB 240KB [ 43.490905] Acpi-Operand 106KB 170KB [ 43.502625] Acpi-State 0KB 3KB [ 43.508031] Acpi-Namespace 19KB 23KB [ 43.520193] numa_policy 0KB 3KB [ 43.532083] debug_objects_cache 344KB 345KB [ 43.537638] trace_event_file 145KB 147KB [ 43.543820] ftrace_event_field 257KB 259KB [ 43.549285] pool_workqueue 24KB 28KB [ 43.554687] page->ptl 3111KB 3111KB [ 43.560083] kmalloc-262144 1032KB 1032KB [ 43.565461] kmalloc-131072 650KB 650KB [ 43.570838] kmalloc-65536 264KB 264KB [ 43.576214] kmalloc-32768 825KB 825KB [ 43.581588] kmalloc-16384 181KB 181KB [ 43.586964] kmalloc-8192 519KB 519KB [ 43.592340] kmalloc-4096 6795KB 6834KB [ 43.597715] kmalloc-2048 3238KB 3238KB [ 43.603089] kmalloc-1024 3717KB 3717KB [ 43.608479] kmalloc-512 2790KB 2790KB [ 43.613857] kmalloc-256 1982KB 2531KB [ 43.619231] kmalloc-128 414KB 515KB [ 43.624615] kmalloc-96 2060KB 2060KB [ 43.629990] kmalloc-64 2476KB 2476KB [ 43.635367] kmalloc-32 2405KB 2405KB [ 43.640742] kmalloc-192 912KB 912KB [ 43.646116] kmem_cache 101KB 105KB [ 43.651490] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 43.660118] [ 1818] 0 1818 5385 175 86016 0 -1000 udevd [ 43.668281] [ 3505] 0 3505 14298 173 118784 0 0 rsyslogd [ 43.676721] [ 3560] 0 3560 4725 50 81920 0 0 cron [ 43.684796] [ 3566] 0 3566 3736 45 69632 0 0 mcstransd [ 43.693961] [ 3588] 0 3588 12490 152 135168 0 -1000 sshd [ 43.702056] [ 3630] 0 3630 3694 41 77824 0 0 getty [ 43.710224] [ 3631] 0 3631 3694 42 73728 0 0 getty [ 43.718391] [ 3632] 0 3632 3694 41 77824 0 0 getty [ 43.726568] [ 3633] 0 3633 3694 39 77824 0 0 getty [ 43.734727] [ 3634] 0 3634 3694 40 73728 0 0 getty [ 43.742889] [ 3635] 0 3635 3694 39 77824 0 0 getty [ 43.751073] [ 3636] 0 3636 3649 40 73728 0 0 getty [ 43.759231] [ 3638] 0 3638 5681 454 86016 0 -1000 udevd [ 43.767366] [ 3639] 0 3639 5681 454 86016 0 -1000 udevd [ 43.775500] [ 3657] 0 3657 17821 197 184320 0 0 sshd [ 43.783548] [ 3659] 0 3659 280 1 32768 0 0 syzkaller998488 [ 43.792556] [ 3660] 0 3660 4043 0 32768 0 0 syzkaller998488 [ 43.801561] [ 3661] 0 3661 4043 521 36864 0 0 syzkaller998488 [ 43.810564] [ 3662] 0 3662 4043 521 36864 0 0 syzkaller998488 [ 43.819573] [ 3663] 0 3663 4043 521 36864 0 0 syzkaller998488 [ 43.828576] [ 3664] 0 3664 4043 521 36864 0 0 syzkaller998488 [ 43.837577] [ 3665] 0 3665 4043 521 36864 0 0 syzkaller998488 [ 43.846579] [ 3666] 0 3666 4043 521 36864 0 0 syzkaller998488 [ 43.855593] [ 3667] 0 3667 4043 521 36864 0 0 syzkaller998488 [ 43.864594] Out of memory: Kill process 3661 (syzkaller998488) score 0 or sacrifice child [ 43.872964] Killed process 3661 (syzkaller998488) total-vm:16172kB, anon-rss:2084kB, file-rss:0kB, shmem-rss:0kB [ 43.885617] oom_reaper: reaped process 3661 (syzkaller998488), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 44.002704] syzkaller998488 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 44.015991] syzkaller998488 cpuset=/ mems_allowed=0 [ 44.021085] CPU: 1 PID: 3662 Comm: syzkaller998488 Not tainted 4.15.0-rc8+ #198 [ 44.028523] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.037849] Call Trace: [ 44.040416] dump_stack+0x194/0x257 [ 44.044029] ? arch_local_irq_restore+0x53/0x53 [ 44.048689] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 44.053859] dump_header+0x28c/0xe1e [ 44.057549] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 44.062715] ? pagefault_out_of_memory+0x152/0x152 [ 44.067619] ? check_noncircular+0x20/0x20 [ 44.071827] ? print_irqtrace_events+0x270/0x270 [ 44.076571] ? __lock_acquire+0x664/0x3e00 [ 44.080783] ? check_noncircular+0x20/0x20 [ 44.084998] ? find_held_lock+0x35/0x1d0 [ 44.089044] ? check_noncircular+0x20/0x20 [ 44.093252] ? task_will_free_mem+0x252/0xaa0 [ 44.097723] ? print_irqtrace_events+0x270/0x270 [ 44.102458] ? ___ratelimit+0x30d/0x630 [ 44.106406] ? lock_downgrade+0x980/0x980 [ 44.110529] ? lock_release+0xa40/0xa40 [ 44.114480] ? mark_held_locks+0xaf/0x100 [ 44.118601] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 44.123676] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 44.128664] ? trace_hardirqs_on+0xd/0x10 [ 44.132785] ? ___ratelimit+0x95/0x630 [ 44.136645] ? idr_get_free_cmn+0xfd0/0xfd0 [ 44.140941] ? check_noncircular+0x20/0x20 [ 44.145146] ? find_held_lock+0x138/0x1d0 [ 44.149273] oom_kill_process+0x8b5/0x14a0 [ 44.153484] ? has_ns_capability_noaudit+0x163/0x2a0 [ 44.158560] ? lock_downgrade+0x980/0x980 [ 44.162684] ? oom_evaluate_task+0x480/0x480 [ 44.167074] ? security_capable_noaudit+0x8b/0xc0 [ 44.171891] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 44.176977] ? has_capability+0x30/0x30 [ 44.180928] ? do_raw_spin_trylock+0x190/0x190 [ 44.185482] ? check_noncircular+0x20/0x20 [ 44.189705] ? has_capability_noaudit+0x24/0x30 [ 44.194346] ? oom_badness+0xd1/0x980 [ 44.198117] ? lock_release+0xa40/0xa40 [ 44.202062] ? do_try_to_free_pages+0xc53/0x1020 [ 44.206801] ? find_lock_task_mm+0x460/0x460 [ 44.211185] ? find_held_lock+0x35/0x1d0 [ 44.215224] ? out_of_memory+0xb3a/0x1220 [ 44.219344] ? lock_downgrade+0x980/0x980 [ 44.223467] ? lock_release+0xa40/0xa40 [ 44.227421] ? lock_acquire+0x1d5/0x580 [ 44.231371] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 44.236282] ? oom_evaluate_task+0x284/0x480 [ 44.240674] out_of_memory+0x86d/0x1220 [ 44.244626] ? oom_killer_disable+0x310/0x310 [ 44.249094] ? mutex_trylock+0x23a/0x2d0 [ 44.253130] ? __lock_is_held+0xb6/0x140 [ 44.257163] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 44.262593] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 44.267432] ? warn_alloc+0x2b0/0x2b0 [ 44.271201] ? check_noncircular+0x20/0x20 [ 44.275407] ? __lock_is_held+0xb6/0x140 [ 44.279444] ? print_irqtrace_events+0x270/0x270 [ 44.284169] ? put_prev_task_fair+0x80/0x80 [ 44.288471] ? find_held_lock+0x35/0x1d0 [ 44.292509] ? __mutex_lock+0x5bd/0x1a80 [ 44.296545] ? __lock_acquire+0x664/0x3e00 [ 44.300752] ? lock_release+0xa40/0xa40 [ 44.304701] ? memset+0x31/0x40 [ 44.307957] ? do_raw_spin_trylock+0x190/0x190 [ 44.312527] ? __lock_is_held+0xb6/0x140 [ 44.316573] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 44.322436] ? find_held_lock+0x35/0x1d0 [ 44.326475] ? __might_sleep+0x95/0x190 [ 44.330425] __alloc_pages_nodemask+0x9fb/0xd80 [ 44.335071] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 44.340068] ? pcpu_chunk_refresh_hint+0x425/0x570 [ 44.344984] ? print_irqtrace_events+0x270/0x270 [ 44.349717] ? __lock_is_held+0xb6/0x140 [ 44.353759] ? find_next_bit+0x27/0x30 [ 44.357622] pcpu_populate_chunk+0x1b3/0x880 [ 44.362019] pcpu_alloc+0x978/0x10e0 [ 44.365728] ? pcpu_free_area+0xa00/0xa00 [ 44.369860] ? vmap_page_range_noflush+0x523/0x720 [ 44.374764] ? retint_kernel+0x10/0x10 [ 44.378623] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 44.383610] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 44.388336] ? retint_kernel+0x10/0x10 [ 44.392194] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 44.397182] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 44.401914] ? retint_kernel+0x10/0x10 [ 44.405785] __alloc_percpu_gfp+0x27/0x30 [ 44.409911] array_map_alloc+0x794/0x990 [ 44.413949] ? perf_event_fd_array_get_ptr+0x230/0x230 [ 44.419206] SyS_bpf+0x93c/0x4840 [ 44.422629] ? check_noncircular+0x20/0x20 [ 44.426840] ? bpf_prog_get+0x20/0x20 [ 44.430618] ? perf_event_fork+0x30/0x30 [ 44.434659] ? __lock_is_held+0xb6/0x140 [ 44.438692] ? check_noncircular+0x20/0x20 [ 44.442913] ? __handle_mm_fault+0x80e/0x3ce0 [ 44.447391] ? check_noncircular+0x20/0x20 [ 44.451594] ? __pmd_alloc+0x4e0/0x4e0 [ 44.455453] ? vma_link+0xe9/0x170 [ 44.458968] ? find_held_lock+0x35/0x1d0 [ 44.463012] ? handle_mm_fault+0x248/0x8d0 [ 44.467228] ? find_held_lock+0x35/0x1d0 [ 44.471278] ? __do_page_fault+0x5f7/0xc90 [ 44.475483] ? lock_downgrade+0x980/0x980 [ 44.479609] ? handle_mm_fault+0x410/0x8d0 [ 44.483813] ? down_read_trylock+0xdb/0x170 [ 44.488104] ? __do_page_fault+0x32d/0xc90 [ 44.492320] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 44.496882] ? vmacache_find+0x5f/0x280 [ 44.500826] ? vmacache_update+0xfe/0x130 [ 44.504949] ? up_read+0x1a/0x40 [ 44.508288] ? __do_page_fault+0x3d6/0xc90 [ 44.512501] ? mm_fault_error+0x2c0/0x2c0 [ 44.516631] ? do_page_fault+0xee/0x720 [ 44.520578] ? __do_page_fault+0xc90/0xc90 [ 44.524808] ? SyS_mmap_pgoff+0x243/0x5f0 [ 44.528948] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 44.533682] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 44.538409] RIP: 0033:0x440179 [ 44.541570] RSP: 002b:00007ffc010ae7a8 EFLAGS: 00000217 ORIG_RAX: 0000000000000141 [ 44.549249] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 0000000000440179 [ 44.556489] RDX: 000000000000002c RSI: 00000000203dc000 RDI: 0000000000000000 [ 44.563728] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 44.570970] R10: 00000000ffffffff R11: 0000000000000217 R12: 00000000004016a0 [ 44.578211] R13: 0000000000401730 R14: 0000000000000000 R15: 0000000000000000 [ 44.585534] Mem-Info: [ 44.588820] active_anon:5058 inactive_anon:63 isolated_anon:0 [ 44.588820] active_file:7 inactive_file:8 isolated_file:0 [ 44.588820] unevictable:0 dirty:0 writeback:0 unstable:0 [ 44.588820] slab_reclaimable:7282 slab_unreclaimable:83235 [ 44.588820] mapped:10 shmem:70 pagetables:308 bounce:0 [ 44.588820] free:23939 free_pcp:3 free_cma:0 [ 44.620691] Node 0 active_anon:20232kB inactive_anon:252kB active_file:28kB inactive_file:32kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:40kB dirty:0kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 12288kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 44.647594] 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 [ 44.673720] lowmem_reserve[]: 0 2870 6381 6381 [ 44.678314] Node 0 DMA32 free:44332kB min:30328kB low:37908kB high:45488kB active_anon:28kB inactive_anon:4kB active_file:0kB inactive_file:8kB unevictable:0kB writepending:0kB present:3129332kB managed:2942312kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 44.705603] lowmem_reserve[]: 0 0 3510 3510 [ 44.709948] Node 0 Normal free:35180kB min:37084kB low:46352kB high:55620kB active_anon:20204kB inactive_anon:248kB active_file:56kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3594624kB mlocked:0kB kernel_stack:3072kB pagetables:1232kB bounce:0kB free_pcp:12kB local_pcp:0kB free_cma:0kB [ 44.738946] lowmem_reserve[]: 0 0 0 0 [ 44.742785] 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 [ 44.756428] Node 0 DMA32: 7*4kB (UM) 4*8kB (UM) 7*16kB (UM) 2*32kB (M) 3*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (UM) 3*1024kB (UM) 2*2048kB (M) 8*4096kB (M) = 44332kB [ 44.772028] Node 0 Normal: 423*4kB (UME) 370*8kB (ME) 240*16kB (M) 174*32kB (M) 82*64kB (UME) 48*128kB (UM) 32*256kB (M) 3*512kB (UM) 0*1024kB 0*2048kB 0*4096kB = 35180kB [ 44.787496] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 44.796088] 96 total pagecache pages [ 44.799817] 0 pages in swap cache [ 44.803279] Swap cache stats: add 0, delete 0, find 0/0 [ 44.808655] Free swap = 0kB [ 44.811684] Total swap = 0kB [ 44.814713] 1965979 pages RAM [ 44.817830] 0 pages HighMem/MovableOnly [ 44.821815] 327768 pages reserved [ 44.825278] Unreclaimable slab info: [ 44.829004] Name Used Total [ 44.834561] hashtab_node 118KB 119KB [ 44.839930] ebitmap_node 383KB 385KB [ 44.845307] avtab_node 1012KB 1013KB [ 44.850691] TIPC 1KB 7KB [ 44.856078] SCTPv6 2KB 4KB [ 44.861462] DCCPv6 2KB 7KB [ 44.866849] DCCP 2KB 6KB [ 44.872717] fib6_nodes 0KB 4KB [ 44.878088] ip6_dst_cache 5KB 11KB [ 44.883468] RAWv6 9KB 13KB [ 44.888844] UDPv6 12KB 14KB [ 44.894226] TCPv6 2KB 5KB [ 44.899629] sd_ext_cdb 0KB 3KB [ 44.905031] scsi_sense_cache 84KB 140KB [ 44.910409] virtio_scsi_cmd 16KB 16KB [ 44.915791] sgpool-128 8KB 8KB [ 44.921167] sgpool-64 4KB 6KB [ 44.926544] sgpool-32 70KB 70KB [ 44.931944] sgpool-16 30KB 30KB [ 44.937504] sgpool-8 172KB 172KB [ 44.942881] cfq_io_cq 17KB 19KB [ 44.948243] cfq_queue 29KB 30KB [ 44.953629] mqueue_inode_cache 1KB 7KB [ 44.959096] nfs_commit_data 3KB 7KB [ 44.964476] nfs_write_data 34KB 37KB [ 44.969846] jbd2_inode 1KB 3KB [ 44.975220] ext4_system_zone 0KB 3KB [ 44.980590] bio-1 1KB 3KB [ 44.985967] rpc_buffers 17KB 19KB [ 44.991350] rpc_tasks 2KB 3KB [ 44.996746] UNIX 773KB 773KB [ 45.002530] tcp_bind_bucket 0KB 4KB [ 45.007904] ip_fib_trie 0KB 3KB [ 45.013279] ip_fib_alias 0KB 3KB [ 45.018655] ip_dst_cache 3KB 8KB [ 45.024043] RAW 5KB 7KB [ 45.029422] UDP 29KB 39KB [ 45.034784] TCP 7KB 7KB [ 45.040154] hugetlbfs_inode_cache 1KB 7KB [ 45.045881] eventpoll_pwq 10KB 11KB [ 45.051245] eventpoll_epi 19KB 23KB [ 45.056614] inotify_inode_mark 3KB 7KB [ 45.062089] request_queue 36KB 90KB [ 45.067452] blkdev_ioc 20KB 27KB [ 45.072818] bio-0 292KB 292KB [ 45.078194] biovec-(1<<(21-12)) 470KB 470KB [ 45.083734] biovec-64 110KB 110KB [ 45.089102] biovec-16 15KB 15KB [ 45.094479] bio_integrity_payload 0KB 4KB [ 45.100189] khugepaged_mm_slot 0KB 3KB [ 45.105647] uid_cache 0KB 3KB [ 45.111041] dmaengine-unmap-2 0KB 3KB [ 45.116403] audit_buffer 0KB 3KB [ 45.121768] skbuff_fclone_cache 143KB 146KB [ 45.127347] skbuff_head_cache 2017KB 2017KB [ 45.132707] configfs_dir_cache 0KB 4KB [ 45.138935] file_lock_cache 165KB 166KB [ 45.144320] file_lock_ctx 1KB 3KB [ 45.149696] fsnotify_mark_connector 2KB 3KB [ 45.155580] shmem_inode_cache 1056KB 1058KB [ 45.160950] task_delay_info 325KB 343KB [ 45.166332] sigqueue 369KB 370KB [ 45.171694] kernfs_node_cache 2290KB 2291KB [ 45.177064] mnt_cache 15KB 20KB [ 45.182440] filp 8409KB 8887KB [ 45.187800] names_cache 111031KB 111061KB [ 45.193170] avc_node 38KB 43KB [ 45.198547] selinux_file_security 428KB 492KB [ 45.204254] selinux_inode_security 1953KB 1956KB [ 45.210056] key_jar 3KB 7KB [ 45.215436] nsproxy 0KB 3KB [ 45.220796] vm_area_struct 18753KB 18755KB [ 45.226163] mm_struct 4540KB 4546KB [ 45.231540] fs_cache 428KB 436KB [ 45.236903] files_cache 1598KB 1601KB [ 45.242276] signal_cache 2554KB 2558KB [ 45.247659] sighand_cache 231KB 346KB [ 45.253035] task_struct 10884KB 10884KB [ 45.258428] cred_jar 2361KB 2364KB [ 45.263791] anon_vma_chain 7866KB 7867KB [ 45.269168] anon_vma 163KB 327KB [ 45.275346] pid 222KB 240KB [ 45.280726] Acpi-Operand 106KB 170KB [ 45.286094] Acpi-Namespace 19KB 23KB [ 45.291465] numa_policy 0KB 3KB [ 45.296842] debug_objects_cache 344KB 345KB [ 45.302377] trace_event_file 145KB 147KB [ 45.307747] ftrace_event_field 257KB 259KB [ 45.313208] pool_workqueue 24KB 28KB [ 45.318570] page->ptl 3109KB 3111KB [ 45.323973] kmalloc-262144 1032KB 1032KB [ 45.329348] kmalloc-131072 650KB 650KB [ 45.334713] kmalloc-65536 264KB 264KB [ 45.340081] kmalloc-32768 825KB 825KB [ 45.345458] kmalloc-16384 181KB 181KB [ 45.350819] kmalloc-8192 519KB 519KB [ 45.356187] kmalloc-4096 6795KB 6825KB [ 45.361563] kmalloc-2048 3236KB 3238KB [ 45.366924] kmalloc-1024 3724KB 3724KB [ 45.372298] kmalloc-512 2788KB 2790KB [ 45.377662] kmalloc-256 1965KB 2516KB [ 45.383047] kmalloc-128 414KB 515KB [ 45.388448] kmalloc-96 2060KB 2060KB [ 45.393810] kmalloc-64 2476KB 2476KB [ 45.399181] kmalloc-32 2405KB 2405KB [ 45.404559] kmalloc-192 916KB 916KB [ 45.410656] kmem_cache 101KB 105KB [ 45.416037] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 45.424654] [ 1818] 0 1818 5385 175 86016 0 -1000 udevd [ 45.432826] [ 3505] 0 3505 14298 173 118784 0 0 rsyslogd [ 45.441232] [ 3560] 0 3560 4725 50 81920 0 0 cron [ 45.449303] [ 3566] 0 3566 3736 45 69632 0 0 mcstransd [ 45.457818] [ 3588] 0 3588 12490 152 135168 0 -1000 sshd [ 45.465898] [ 3630] 0 3630 3694 41 77824 0 0 getty [ 45.474053] [ 3631] 0 3631 3694 42 73728 0 0 getty [ 45.482217] [ 3632] 0 3632 3694 41 77824 0 0 getty [ 45.490381] [ 3633] 0 3633 3694 39 77824 0 0 getty [ 45.498550] [ 3634] 0 3634 3694 40 73728 0 0 getty [ 45.506716] [ 3635] 0 3635 3694 39 77824 0 0 getty [ 45.514866] [ 3636] 0 3636 3649 40 73728 0 0 getty [ 45.523057] [ 3638] 0 3638 5681 454 86016 0 -1000 udevd [ 45.531227] [ 3639] 0 3639 5681 454 86016 0 -1000 udevd [ 45.539395] [ 3657] 0 3657 17821 197 184320 0 0 sshd [ 45.547501] [ 3659] 0 3659 280 1 32768 0 0 syzkaller998488 [ 45.556543] [ 3660] 0 3660 4043 0 32768 0 0 syzkaller998488 [ 45.565580] [ 3661] 0 3661 4043 0 32768 0 0 syzkaller998488 [ 45.574617] [ 3662] 0 3662 4043 521 36864 0 0 syzkaller998488 [ 45.583656] [ 3663] 0 3663 4043 521 36864 0 0 syzkaller998488 [ 45.592704] [ 3664] 0 3664 4043 521 36864 0 0 syzkaller998488 [ 45.601746] [ 3665] 0 3665 4043 521 36864 0 0 syzkaller998488 [ 45.610783] [ 3666] 0 3666 4043 521 36864 0 0 syzkaller998488 [ 45.619818] [ 3667] 0 3667 4043 521 36864 0 0 syzkaller998488 [ 45.628843] Out of memory: Kill process 3662 (syzkaller998488) score 0 or sacrifice child [ 45.637958] Killed process 3662 (syzkaller998488) total-vm:16172kB, anon-rss:2084kB, file-rss:0kB, shmem-rss:0kB [ 45.649357] oom_reaper: reaped process 3662 (syzkaller998488), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 45.662176] cron invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=0 [ 45.675052] cron cpuset=/ mems_allowed=0 [ 45.679145] CPU: 1 PID: 3560 Comm: cron Not tainted 4.15.0-rc8+ #198 [ 45.685614] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.695681] Call Trace: [ 45.698267] dump_stack+0x194/0x257 [ 45.701890] ? arch_local_irq_restore+0x53/0x53 [ 45.706552] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 45.711741] dump_header+0x28c/0xe1e [ 45.715455] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 45.720643] ? pagefault_out_of_memory+0x152/0x152 [ 45.726092] ? check_noncircular+0x20/0x20 [ 45.730317] ? print_irqtrace_events+0x270/0x270 [ 45.735050] ? __lock_acquire+0x664/0x3e00 [ 45.739273] ? check_noncircular+0x20/0x20 [ 45.743496] ? find_held_lock+0x35/0x1d0 [ 45.747544] ? check_noncircular+0x20/0x20 [ 45.751753] ? task_will_free_mem+0x252/0xaa0 [ 45.756225] ? print_irqtrace_events+0x270/0x270 [ 45.760963] ? ___ratelimit+0x30d/0x630 [ 45.764912] ? lock_downgrade+0x980/0x980 [ 45.769038] ? lock_release+0xa40/0xa40 [ 45.772990] ? mark_held_locks+0xaf/0x100 [ 45.777114] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 45.782190] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 45.787179] ? trace_hardirqs_on+0xd/0x10 [ 45.791302] ? ___ratelimit+0x95/0x630 [ 45.795163] ? idr_get_free_cmn+0xfd0/0xfd0 [ 45.799454] ? check_noncircular+0x20/0x20 [ 45.803658] ? find_held_lock+0x138/0x1d0 [ 45.807786] oom_kill_process+0x8b5/0x14a0 [ 45.812010] ? has_ns_capability_noaudit+0x163/0x2a0 [ 45.817094] ? lock_downgrade+0x980/0x980 [ 45.821217] ? oom_evaluate_task+0x480/0x480 [ 45.825608] ? security_capable_noaudit+0x8b/0xc0 [ 45.830428] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 45.835502] ? has_capability+0x30/0x30 [ 45.839450] ? do_raw_spin_trylock+0x190/0x190 [ 45.844006] ? check_noncircular+0x20/0x20 [ 45.848226] ? has_capability_noaudit+0x24/0x30 [ 45.852870] ? oom_badness+0xd1/0x980 [ 45.856641] ? lock_release+0xa40/0xa40 [ 45.860588] ? do_try_to_free_pages+0xc53/0x1020 [ 45.865320] ? find_lock_task_mm+0x460/0x460 [ 45.869705] ? find_held_lock+0x35/0x1d0 [ 45.873747] ? out_of_memory+0xb3a/0x1220 [ 45.877867] ? lock_downgrade+0x980/0x980 [ 45.881991] ? lock_release+0xa40/0xa40 [ 45.885946] ? lock_acquire+0x1d5/0x580 [ 45.889894] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 45.894802] ? oom_evaluate_task+0x284/0x480 [ 45.899197] out_of_memory+0x86d/0x1220 [ 45.903150] ? oom_killer_disable+0x310/0x310 [ 45.907615] ? mutex_trylock+0x23a/0x2d0 [ 45.911649] ? __lock_is_held+0xb6/0x140 [ 45.915691] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 45.921122] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 45.925945] ? trace_hardirqs_on+0xd/0x10 [ 45.930081] ? warn_alloc+0x2b0/0x2b0 [ 45.933862] ? lock_downgrade+0x980/0x980 [ 45.937989] ? radix_tree_lookup_slot+0x99/0xe0 [ 45.942644] ? find_get_entry+0x53c/0x9e0 [ 45.946792] ? __lock_acquire+0x664/0x3e00 [ 45.951031] ? __lock_is_held+0xb6/0x140 [ 45.955081] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 45.960945] ? __might_sleep+0x95/0x190 [ 45.964896] __alloc_pages_nodemask+0x9fb/0xd80 [ 45.969540] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 45.974528] ? add_to_page_cache_lru+0x510/0x510 [ 45.979272] ? check_noncircular+0x20/0x20 [ 45.983477] ? check_noncircular+0x20/0x20 [ 45.987684] ? _find_next_bit+0xee/0x120 [ 45.991719] ? lock_acquire+0x1d5/0x580 [ 45.995681] alloc_pages_current+0xb6/0x1e0 [ 45.999979] __page_cache_alloc+0x334/0x500 [ 46.004273] ? rcu_read_lock_held+0xa9/0xc0 [ 46.008568] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 46.015910] filemap_fault+0xefc/0x1c20 [ 46.019858] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 46.025037] ? __lock_page_or_retry+0x4f0/0x4f0 [ 46.029694] ? filemap_map_pages+0x942/0x15d0 [ 46.034175] ? find_get_entries_tag+0xeb0/0xeb0 [ 46.038819] ? check_noncircular+0x20/0x20 [ 46.043033] ? check_noncircular+0x20/0x20 [ 46.047239] ? find_held_lock+0x35/0x1d0 [ 46.051279] ? print_irqtrace_events+0x270/0x270 [ 46.056009] ? print_irqtrace_events+0x270/0x270 [ 46.060753] ? lock_downgrade+0x980/0x980 [ 46.064887] ? lock_acquire+0x1d5/0x580 [ 46.068830] ? lock_acquire+0x1d5/0x580 [ 46.072777] ? ext4_filemap_fault+0x7a/0xad [ 46.077075] ? lock_release+0xa40/0xa40 [ 46.081027] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 46.086887] ? rcu_note_context_switch+0x710/0x710 [ 46.091791] ? __might_sleep+0x95/0x190 [ 46.095743] ? down_read+0x96/0x150 [ 46.099358] ? ext4_filemap_fault+0x7a/0xad [ 46.103652] ? __down_interruptible+0x6b0/0x6b0 [ 46.108311] ext4_filemap_fault+0x82/0xad [ 46.112440] __do_fault+0xeb/0x30f [ 46.115955] ? pte_offset_kernel+0xc7/0xc7 [ 46.120165] ? do_raw_spin_trylock+0x190/0x190 [ 46.124727] ? check_noncircular+0x20/0x20 [ 46.128949] __handle_mm_fault+0x1d8f/0x3ce0 [ 46.133343] ? __pmd_alloc+0x4e0/0x4e0 [ 46.137210] ? find_held_lock+0x35/0x1d0 [ 46.141254] ? handle_mm_fault+0x248/0x8d0 [ 46.145461] ? lock_downgrade+0x980/0x980 [ 46.149604] handle_mm_fault+0x334/0x8d0 [ 46.153635] ? down_read_trylock+0xdb/0x170 [ 46.157930] ? __do_page_fault+0x32d/0xc90 [ 46.162145] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 46.166698] ? vmacache_find+0x5f/0x280 [ 46.170646] ? find_vma+0x30/0x150 [ 46.174161] __do_page_fault+0x5c9/0xc90 [ 46.178200] ? mm_fault_error+0x2c0/0x2c0 [ 46.182334] do_page_fault+0xee/0x720 [ 46.186107] ? nanosleep_copyout+0x100/0x100 [ 46.190489] ? __do_page_fault+0xc90/0xc90 [ 46.194697] ? enqueue_hrtimer+0x4a0/0x4a0 [ 46.198909] ? SyS_rt_sigprocmask+0x191/0x220 [ 46.203379] ? retint_user+0x18/0x18 [ 46.207067] ? page_fault+0x36/0x60 [ 46.210675] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 46.215492] ? page_fault+0x36/0x60 [ 46.219091] page_fault+0x4c/0x60 [ 46.222514] RIP: 0033:0x7f7e640faffa [ 46.226195] RSP: 002b:00007fff8a11d630 EFLAGS: 00010246 [ 46.231540] RAX: 0000000000000000 RBX: 00007f7e643e7380 RCX: ffffffffff600409 [ 46.238791] RDX: 00007f7e643e7380 RSI: 0000000000000001 RDI: 000000000060b2e0 [ 46.246034] RBP: 000000000060b2e0 R08: 00007fff8a11d4d0 R09: 0000000000000000 [ 46.253275] R10: 0000000000000008 R11: 0000000000000206 R12: 0000000000000001 [ 46.260517] R13: 00007fff8a11d7d0 R14: 0000000000000000 R15: 0000000000000000 [ 46.267858] Mem-Info: [ 46.270855] active_anon:4541 inactive_anon:63 isolated_anon:0 [ 46.270855] active_file:13 inactive_file:13 isolated_file:0 [ 46.270855] unevictable:0 dirty:0 writeback:0 unstable:0 [ 46.270855] slab_reclaimable:7283 slab_unreclaimable:83234 [ 46.270855] mapped:2 shmem:70 pagetables:307 bounce:0 [ 46.270855] free:24249 free_pcp:4 free_cma:0 [ 46.302819] Node 0 active_anon:18164kB inactive_anon:252kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 10240kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 46.329718] 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 [ 46.355828] lowmem_reserve[]: 0 2870 6381 6381 [ 46.360412] Node 0 DMA32 free:44332kB min:30328kB low:37908kB high:45488kB active_anon:28kB inactive_anon:4kB active_file:0kB inactive_file:8kB unevictable:0kB writepending:0kB present:3129332kB managed:2942312kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 46.387661] lowmem_reserve[]: 0 0 3510 3510 [ 46.392000] Node 0 Normal free:36780kB min:37084kB low:46352kB high:55620kB active_anon:18136kB inactive_anon:248kB active_file:44kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3594624kB mlocked:0kB kernel_stack:3072kB pagetables:1228kB bounce:0kB free_pcp:16kB local_pcp:8kB free_cma:0kB [ 46.421046] lowmem_reserve[]: 0 0 0 0 [ 46.424891] 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 [ 46.438569] Node 0 DMA32: 7*4kB (UM) 4*8kB (UM) 7*16kB (UM) 2*32kB (M) 3*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (UM) 3*1024kB (UM) 2*2048kB (M) 8*4096kB (M) = 44332kB [ 46.454135] Node 0 Normal: 423*4kB (UM) 378*8kB (UME) 242*16kB (UM) 174*32kB (M) 82*64kB (UME) 48*128kB (UM) 32*256kB (M) 2*512kB (M) 0*1024kB 1*2048kB (M) 0*4096kB = 36812kB [ 46.469952] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 46.478539] 96 total pagecache pages [ 46.482282] 0 pages in swap cache [ 46.485752] Swap cache stats: add 0, delete 0, find 0/0 [ 46.491916] Free swap = 0kB [ 46.494937] Total swap = 0kB [ 46.497970] 1965979 pages RAM [ 46.501072] 0 pages HighMem/MovableOnly [ 46.505048] 327768 pages reserved [ 46.508497] Unreclaimable slab info: [ 46.512221] Name Used Total [ 46.517762] hashtab_node 118KB 119KB [ 46.523135] ebitmap_node 383KB 385KB [ 46.528517] avtab_node 1012KB 1013KB [ 46.533885] TIPC 1KB 7KB [ 46.539261] SCTPv6 2KB 4KB [ 46.544627] DCCPv6 2KB 7KB [ 46.550048] DCCP 2KB 6KB [ 46.556249] fib6_nodes 0KB 4KB [ 46.561633] ip6_dst_cache 5KB 11KB [ 46.566998] RAWv6 9KB 13KB [ 46.572383] UDPv6 12KB 14KB [ 46.577759] TCPv6 2KB 5KB [ 46.583145] sd_ext_cdb 0KB 3KB [ 46.588528] scsi_sense_cache 84KB 140KB [ 46.593891] virtio_scsi_cmd 16KB 16KB [ 46.599266] sgpool-128 8KB 8KB [ 46.604631] sgpool-64 4KB 6KB [ 46.610004] sgpool-32 70KB 70KB [ 46.615437] sgpool-16 29KB 30KB [ 46.620817] sgpool-8 172KB 172KB [ 46.626212] cfq_io_cq 16KB 19KB [ 46.631590] cfq_queue 25KB 30KB [ 46.636970] mqueue_inode_cache 1KB 7KB [ 46.642420] nfs_commit_data 3KB 7KB [ 46.647792] nfs_write_data 34KB 37KB [ 46.653182] jbd2_inode 1KB 3KB [ 46.658570] ext4_system_zone 0KB 3KB [ 46.663958] bio-1 1KB 3KB [ 46.669329] rpc_buffers 17KB 19KB [ 46.674703] rpc_tasks 2KB 3KB [ 46.680116] UNIX 773KB 773KB [ 46.685503] tcp_bind_bucket 0KB 4KB [ 46.691603] ip_fib_trie 0KB 3KB [ 46.696990] ip_fib_alias 0KB 3KB [ 46.702358] ip_dst_cache 3KB 8KB [ 46.707728] RAW 5KB 7KB [ 46.713108] UDP 29KB 39KB [ 46.718488] TCP 7KB 7KB [ 46.723867] hugetlbfs_inode_cache 1KB 7KB [ 46.729598] eventpoll_pwq 10KB 11KB [ 46.734968] eventpoll_epi 19KB 23KB [ 46.740346] inotify_inode_mark 3KB 7KB [ 46.745830] request_queue 36KB 90KB [ 46.751215] blkdev_ioc 20KB 27KB [ 46.756595] bio-0 292KB 292KB [ 46.761974] biovec-(1<<(21-12)) 470KB 470KB [ 46.767527] biovec-64 110KB 110KB [ 46.772909] biovec-16 15KB 15KB [ 46.778289] bio_integrity_payload 0KB 4KB [ 46.784038] khugepaged_mm_slot 0KB 3KB [ 46.789509] uid_cache 0KB 3KB [ 46.794888] dmaengine-unmap-2 0KB 3KB [ 46.800264] audit_buffer 0KB 3KB [ 46.805644] skbuff_fclone_cache 143KB 146KB [ 46.811206] skbuff_head_cache 2017KB 2017KB [ 46.816600] configfs_dir_cache 0KB 4KB [ 46.822058] file_lock_cache 164KB 166KB [ 46.828226] file_lock_ctx 1KB 3KB [ 46.833611] fsnotify_mark_connector 2KB 3KB [ 46.839495] shmem_inode_cache 1055KB 1058KB [ 46.844864] task_delay_info 320KB 343KB [ 46.850242] sigqueue 367KB 370KB [ 46.855621] kernfs_node_cache 2290KB 2291KB [ 46.861006] mnt_cache 15KB 20KB [ 46.866416] filp 8395KB 8876KB [ 46.871794] names_cache 111014KB 111052KB [ 46.877180] avc_node 38KB 43KB [ 46.882550] selinux_file_security 426KB 492KB [ 46.888275] selinux_inode_security 1952KB 1956KB [ 46.894086] key_jar 3KB 7KB [ 46.899567] nsproxy 0KB 3KB [ 46.904948] vm_area_struct 18747KB 18755KB [ 46.910326] mm_struct 4537KB 4546KB [ 46.915704] fs_cache 427KB 436KB [ 46.921082] files_cache 1598KB 1601KB [ 46.926463] signal_cache 2551KB 2558KB [ 46.931841] sighand_cache 219KB 326KB [ 46.937218] task_struct 10884KB 10884KB [ 46.942623] cred_jar 2360KB 2364KB [ 46.948030] anon_vma_chain 7865KB 7867KB [ 46.953412] anon_vma 152KB 327KB [ 46.958792] pid 222KB 240KB [ 46.964665] Acpi-Operand 106KB 170KB [ 46.970046] Acpi-Namespace 19KB 23KB [ 46.975427] numa_policy 0KB 3KB [ 46.980806] debug_objects_cache 343KB 345KB [ 46.986342] trace_event_file 145KB 147KB [ 46.991711] ftrace_event_field 257KB 259KB [ 46.997181] pool_workqueue 24KB 28KB [ 47.002562] page->ptl 3106KB 3111KB [ 47.007980] kmalloc-262144 1032KB 1032KB [ 47.013360] kmalloc-131072 650KB 650KB [ 47.018738] kmalloc-65536 264KB 264KB [ 47.024121] kmalloc-32768 825KB 825KB [ 47.029501] kmalloc-16384 181KB 181KB [ 47.036041] kmalloc-8192 519KB 519KB [ 47.041420] kmalloc-4096 6778KB 6817KB [ 47.046800] kmalloc-2048 3236KB 3238KB [ 47.052165] kmalloc-1024 3724KB 3724KB [ 47.057534] kmalloc-512 2786KB 2790KB [ 47.062916] kmalloc-256 1958KB 2512KB [ 47.068297] kmalloc-128 409KB 515KB [ 47.073703] kmalloc-96 2060KB 2060KB [ 47.079083] kmalloc-64 2475KB 2476KB [ 47.084461] kmalloc-32 2404KB 2405KB [ 47.089841] kmalloc-192 915KB 916KB [ 47.095699] kmem_cache 101KB 105KB [ 47.101070] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 47.109685] [ 1818] 0 1818 5385 175 86016 0 -1000 udevd [ 47.117856] [ 3505] 0 3505 14298 173 118784 0 0 rsyslogd [ 47.126274] [ 3560] 0 3560 4725 50 81920 0 0 cron [ 47.134346] [ 3566] 0 3566 3736 45 69632 0 0 mcstransd [ 47.142886] [ 3588] 0 3588 12490 152 135168 0 -1000 sshd [ 47.150962] [ 3630] 0 3630 3694 41 77824 0 0 getty [ 47.159130] [ 3631] 0 3631 3694 42 73728 0 0 getty [ 47.167295] [ 3632] 0 3632 3694 41 77824 0 0 getty [ 47.175463] [ 3633] 0 3633 3694 39 77824 0 0 getty [ 47.183627] [ 3634] 0 3634 3694 40 73728 0 0 getty [ 47.191790] [ 3635] 0 3635 3694 39 77824 0 0 getty [ 47.199952] [ 3636] 0 3636 3649 40 73728 0 0 getty [ 47.208132] [ 3638] 0 3638 5681 454 86016 0 -1000 udevd [ 47.216296] [ 3639] 0 3639 5681 454 86016 0 -1000 udevd [ 47.224487] [ 3657] 0 3657 17821 197 184320 0 0 sshd [ 47.232570] [ 3659] 0 3659 280 1 32768 0 0 syzkaller998488 [ 47.241607] [ 3660] 0 3660 4043 0 32768 0 0 syzkaller998488 [ 47.250640] [ 3661] 0 3661 4043 0 32768 0 0 syzkaller998488 [ 47.259676] [ 3662] 0 3662 4043 0 32768 0 0 syzkaller998488 [ 47.268711] [ 3663] 0 3663 4043 521 36864 0 0 syzkaller998488 [ 47.277774] [ 3664] 0 3664 4043 521 36864 0 0 syzkaller998488 [ 47.286814] [ 3665] 0 3665 4043 521 36864 0 0 syzkaller998488 [ 47.295854] [ 3666] 0 3666 4043 521 36864 0 0 syzkaller998488 [ 47.304882] [ 3667] 0 3667 4043 521 36864 0 0 syzkaller998488 [ 47.313909] Out of memory: Kill process 3663 (syzkaller998488) score 0 or sacrifice child [ 47.323063] Killed process 3663 (syzkaller998488) total-vm:16172kB, anon-rss:2084kB, file-rss:0kB, shmem-rss:0kB [ 47.335150] oom_reaper: reaped process 3663 (syzkaller998488), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 47.780490] syzkaller998488 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 47.793674] syzkaller998488 cpuset=/ mems_allowed=0 [ 47.798727] CPU: 1 PID: 3666 Comm: syzkaller998488 Not tainted 4.15.0-rc8+ #198 [ 47.806160] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.815501] Call Trace: [ 47.818085] dump_stack+0x194/0x257 [ 47.821708] ? arch_local_irq_restore+0x53/0x53 [ 47.826367] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 47.831558] dump_header+0x28c/0xe1e [ 47.835274] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 47.840464] ? pagefault_out_of_memory+0x152/0x152 [ 47.845382] ? check_noncircular+0x20/0x20 [ 47.849614] ? print_irqtrace_events+0x270/0x270 [ 47.854366] ? __lock_acquire+0x664/0x3e00 [ 47.858599] ? check_noncircular+0x20/0x20 [ 47.862833] ? find_held_lock+0x35/0x1d0 [ 47.866895] ? check_noncircular+0x20/0x20 [ 47.871121] ? task_will_free_mem+0x252/0xaa0 [ 47.875613] ? print_irqtrace_events+0x270/0x270 [ 47.880369] ? ___ratelimit+0x30d/0x630 [ 47.884332] ? lock_downgrade+0x980/0x980 [ 47.888478] ? lock_release+0xa40/0xa40 [ 47.892450] ? mark_held_locks+0xaf/0x100 [ 47.896593] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 47.901680] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 47.906678] ? trace_hardirqs_on+0xd/0x10 [ 47.910818] ? ___ratelimit+0x95/0x630 [ 47.914688] ? idr_get_free_cmn+0xfd0/0xfd0 [ 47.918990] ? check_noncircular+0x20/0x20 [ 47.923208] ? find_held_lock+0x138/0x1d0 [ 47.927356] oom_kill_process+0x8b5/0x14a0 [ 47.931584] ? has_ns_capability_noaudit+0x163/0x2a0 [ 47.936676] ? lock_downgrade+0x980/0x980 [ 47.940821] ? oom_evaluate_task+0x480/0x480 [ 47.945235] ? security_capable_noaudit+0x8b/0xc0 [ 47.950076] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 47.955170] ? has_capability+0x30/0x30 [ 47.959132] ? do_raw_spin_trylock+0x190/0x190 [ 47.963703] ? check_noncircular+0x20/0x20 [ 47.967937] ? has_capability_noaudit+0x24/0x30 [ 47.972597] ? oom_badness+0xd1/0x980 [ 47.976384] ? lock_release+0xa40/0xa40 [ 47.980343] ? do_try_to_free_pages+0xc53/0x1020 [ 47.985082] ? find_lock_task_mm+0x460/0x460 [ 47.989478] ? find_held_lock+0x35/0x1d0 [ 47.993537] ? out_of_memory+0xb3a/0x1220 [ 47.997672] ? lock_downgrade+0x980/0x980 [ 48.001813] ? lock_release+0xa40/0xa40 [ 48.005770] ? lock_acquire+0x1d5/0x580 [ 48.009737] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 48.014666] ? oom_evaluate_task+0x284/0x480 [ 48.019079] out_of_memory+0x86d/0x1220 [ 48.023042] ? trace_hardirqs_on+0xd/0x10 [ 48.027194] ? oom_killer_disable+0x310/0x310 [ 48.031675] ? mutex_trylock+0x23a/0x2d0 [ 48.035735] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 48.041171] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 48.047071] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 48.051952] ? warn_alloc+0x2b0/0x2b0 [ 48.055737] ? check_noncircular+0x20/0x20 [ 48.059975] ? print_irqtrace_events+0x270/0x270 [ 48.064731] ? check_noncircular+0x20/0x20 [ 48.068954] ? find_held_lock+0x35/0x1d0 [ 48.073001] ? lock_acquire+0x1d5/0x580 [ 48.076961] ? lock_acquire+0x1d5/0x580 [ 48.080933] ? __lock_acquire+0x664/0x3e00 [ 48.085163] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 48.091040] ? lock_release+0xa40/0xa40 [ 48.095066] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 48.100939] ? __might_sleep+0x95/0x190 [ 48.104907] __alloc_pages_nodemask+0x9fb/0xd80 [ 48.109561] ? lock_release+0xa40/0xa40 [ 48.113521] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 48.118531] ? pcpu_chunk_refresh_hint+0x425/0x570 [ 48.123454] ? print_irqtrace_events+0x270/0x270 [ 48.128199] ? __lock_is_held+0xb6/0x140 [ 48.132253] ? find_next_bit+0x27/0x30 [ 48.136138] pcpu_populate_chunk+0x1b3/0x880 [ 48.140554] pcpu_alloc+0x978/0x10e0 [ 48.144276] ? pcpu_free_area+0xa00/0xa00 [ 48.148421] ? vmap_page_range_noflush+0x523/0x720 [ 48.153370] ? map_vm_area+0x9e/0xd0 [ 48.157081] ? __vmalloc_node_range+0x37a/0x650 [ 48.161752] ? array_map_alloc+0x354/0x990 [ 48.165974] ? __vmalloc_node_flags_caller+0x50/0x60 [ 48.171077] __alloc_percpu_gfp+0x27/0x30 [ 48.175221] array_map_alloc+0x794/0x990 [ 48.179277] ? perf_event_fd_array_get_ptr+0x230/0x230 [ 48.184551] SyS_bpf+0x93c/0x4840 [ 48.187990] ? check_noncircular+0x20/0x20 [ 48.192221] ? bpf_prog_get+0x20/0x20 [ 48.196015] ? perf_event_fork+0x30/0x30 [ 48.200081] ? __lock_is_held+0xb6/0x140 [ 48.204134] ? check_noncircular+0x20/0x20 [ 48.208367] ? __handle_mm_fault+0x80e/0x3ce0 [ 48.212863] ? check_noncircular+0x20/0x20 [ 48.217085] ? __pmd_alloc+0x4e0/0x4e0 [ 48.220962] ? vma_link+0xe9/0x170 [ 48.224499] ? find_held_lock+0x35/0x1d0 [ 48.228567] ? handle_mm_fault+0x248/0x8d0 [ 48.232795] ? find_held_lock+0x35/0x1d0 [ 48.236860] ? __do_page_fault+0x5f7/0xc90 [ 48.241083] ? lock_downgrade+0x980/0x980 [ 48.245234] ? handle_mm_fault+0x410/0x8d0 [ 48.249452] ? down_read_trylock+0xdb/0x170 [ 48.253760] ? __do_page_fault+0x32d/0xc90 [ 48.257982] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 48.262551] ? vmacache_find+0x5f/0x280 [ 48.266509] ? vmacache_update+0xfe/0x130 [ 48.270655] ? up_read+0x1a/0x40 [ 48.274009] ? __do_page_fault+0x3d6/0xc90 [ 48.278249] ? mm_fault_error+0x2c0/0x2c0 [ 48.282404] ? do_page_fault+0xee/0x720 [ 48.286370] ? __do_page_fault+0xc90/0xc90 [ 48.290608] ? SyS_mmap_pgoff+0x243/0x5f0 [ 48.294766] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 48.299525] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 48.304266] RIP: 0033:0x440179 [ 48.307440] RSP: 002b:00007ffc010ae7a8 EFLAGS: 00000217 ORIG_RAX: 0000000000000141 [ 48.315135] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 0000000000440179 [ 48.322389] RDX: 000000000000002c RSI: 00000000203dc000 RDI: 0000000000000000 [ 48.329646] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 48.336901] R10: 00000000ffffffff R11: 0000000000000217 R12: 00000000004016a0 [ 48.344154] R13: 0000000000401730 R14: 0000000000000000 R15: 0000000000000000 [ 48.351527] Mem-Info: [ 48.354780] active_anon:4024 inactive_anon:63 isolated_anon:0 [ 48.354780] active_file:25 inactive_file:12 isolated_file:0 [ 48.354780] unevictable:0 dirty:0 writeback:0 unstable:0 [ 48.354780] slab_reclaimable:7283 slab_unreclaimable:83211 [ 48.354780] mapped:13 shmem:70 pagetables:306 bounce:0 [ 48.354780] free:24306 free_pcp:0 free_cma:0 [ 48.386883] Node 0 active_anon:16096kB inactive_anon:252kB active_file:100kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:52kB dirty:0kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 8192kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 48.413885] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 48.440044] lowmem_reserve[]: 0 2870 6381 6381 [ 48.444660] Node 0 DMA32 free:44332kB min:30328kB low:37908kB high:45488kB active_anon:28kB inactive_anon:4kB active_file:16kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2942312kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 48.472034] lowmem_reserve[]: 0 0 3510 3510 [ 48.476387] Node 0 Normal free:36848kB min:37084kB low:46352kB high:55620kB active_anon:16068kB inactive_anon:248kB active_file:92kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3594624kB mlocked:0kB kernel_stack:3072kB pagetables:1224kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 48.505587] lowmem_reserve[]: 0 0 0 0 [ 48.509469] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 48.523160] Node 0 DMA32: 7*4kB (UM) 4*8kB (UM) 7*16kB (UM) 2*32kB (M) 3*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (UM) 3*1024kB (UM) 2*2048kB (M) 8*4096kB (M) = 44332kB [ 48.538772] Node 0 Normal: 424*4kB (UME) 382*8kB (UM) 243*16kB (UM) 176*32kB (UM) 81*64kB (ME) 47*128kB (M) 32*256kB (M) 3*512kB (UM) 0*1024kB 1*2048kB (M) 0*4096kB = 37248kB [ 48.554596] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 48.563179] 123 total pagecache pages [ 48.567078] 0 pages in swap cache [ 48.570563] Swap cache stats: add 0, delete 0, find 0/0 [ 48.583658] Free swap = 0kB [ 48.590109] Total swap = 0kB [ 48.593136] 1965979 pages RAM [ 48.598897] 0 pages HighMem/MovableOnly [ 48.609390] 327768 pages reserved [ 48.612857] Unreclaimable slab info: [ 48.623449] Name Used Total [ 48.636237] hashtab_node 118KB 119KB [ 48.641620] ebitmap_node 382KB 385KB [ 48.653788] avtab_node 1012KB 1013KB [ 48.665551] TIPC 1KB 7KB [ 48.670937] SCTPv6 2KB 4KB [ 48.683161] DCCPv6 2KB 7KB [ 48.694929] DCCP 2KB 6KB [ 48.700323] fib6_nodes 0KB 4KB [ 48.712385] ip6_dst_cache 5KB 11KB [ 48.724222] RAWv6 9KB 13KB [ 48.729604] UDPv6 12KB 14KB [ 48.735225] TCPv6 2KB 5KB [ 48.740606] sd_ext_cdb 0KB 3KB [ 48.745958] scsi_sense_cache 84KB 140KB [ 48.751307] virtio_scsi_cmd 16KB 16KB [ 48.756660] sgpool-128 8KB 8KB [ 48.762437] sgpool-64 4KB 6KB [ 48.767792] sgpool-32 78KB 78KB [ 48.773140] sgpool-16 28KB 30KB [ 48.778489] sgpool-8 176KB 176KB [ 48.783837] cfq_io_cq 15KB 19KB [ 48.789185] cfq_queue 25KB 30KB [ 48.794539] mqueue_inode_cache 1KB 7KB [ 48.799981] nfs_commit_data 3KB 7KB [ 48.805334] nfs_write_data 34KB 37KB [ 48.810687] jbd2_inode 1KB 3KB [ 48.816040] ext4_system_zone 0KB 3KB [ 48.821394] bio-1 1KB 3KB [ 48.826747] rpc_buffers 17KB 19KB [ 48.832110] rpc_tasks 2KB 3KB [ 48.837460] UNIX 773KB 773KB [ 48.842836] tcp_bind_bucket 0KB 4KB [ 48.848199] ip_fib_trie 0KB 3KB [ 48.853547] ip_fib_alias 0KB 3KB [ 48.858940] ip_dst_cache 3KB 8KB [ 48.864314] RAW 5KB 7KB [ 48.869663] UDP 29KB 39KB [ 48.875023] TCP 7KB 7KB [ 48.880372] hugetlbfs_inode_cache 1KB 7KB [ 48.886080] eventpoll_pwq 10KB 11KB [ 48.891438] eventpoll_epi 19KB 23KB [ 48.897263] inotify_inode_mark 3KB 7KB [ 48.902704] request_queue 36KB 90KB [ 48.908056] blkdev_ioc 20KB 27KB [ 48.913405] bio-0 296KB 296KB [ 48.918758] biovec-(1<<(21-12)) 470KB 470KB [ 48.924280] biovec-64 110KB 110KB [ 48.929629] biovec-16 13KB 15KB [ 48.934982] bio_integrity_payload 0KB 4KB [ 48.940689] khugepaged_mm_slot 0KB 3KB [ 48.946131] uid_cache 0KB 3KB [ 48.951492] dmaengine-unmap-2 0KB 3KB [ 48.956851] audit_buffer 0KB 3KB [ 48.962200] skbuff_fclone_cache 143KB 146KB [ 48.967725] skbuff_head_cache 2017KB 2017KB [ 48.973075] configfs_dir_cache 0KB 4KB [ 48.978510] file_lock_cache 164KB 166KB [ 48.983859] file_lock_ctx 1KB 3KB [ 48.989207] fsnotify_mark_connector 2KB 3KB [ 48.995080] shmem_inode_cache 1055KB 1058KB [ 49.000516] task_delay_info 320KB 343KB [ 49.005867] sigqueue 367KB 370KB [ 49.011216] kernfs_node_cache 2290KB 2291KB [ 49.016566] mnt_cache 15KB 20KB [ 49.021920] filp 8388KB 8868KB [ 49.027684] names_cache 111005KB 111044KB [ 49.033036] avc_node 38KB 43KB [ 49.038387] selinux_file_security 426KB 492KB [ 49.044093] selinux_inode_security 1951KB 1956KB [ 49.049881] key_jar 3KB 7KB [ 49.055230] nsproxy 0KB 3KB [ 49.060579] vm_area_struct 18747KB 18755KB [ 49.065929] mm_struct 4535KB 4546KB [ 49.071278] fs_cache 427KB 436KB [ 49.076628] files_cache 1598KB 1601KB [ 49.081979] signal_cache 2550KB 2558KB [ 49.087329] sighand_cache 217KB 319KB [ 49.092677] task_struct 10884KB 10884KB [ 49.098024] cred_jar 2360KB 2364KB [ 49.103373] anon_vma_chain 7865KB 7867KB [ 49.108721] anon_vma 147KB 327KB [ 49.114080] pid 222KB 240KB [ 49.119429] Acpi-Operand 106KB 170KB [ 49.124780] Acpi-Namespace 19KB 23KB [ 49.130140] numa_policy 0KB 3KB [ 49.135494] debug_objects_cache 343KB 345KB [ 49.141026] trace_event_file 145KB 147KB [ 49.146385] ftrace_event_field 257KB 259KB [ 49.151846] pool_workqueue 24KB 28KB [ 49.157210] page->ptl 3106KB 3111KB [ 49.162992] kmalloc-262144 1032KB 1032KB [ 49.168366] kmalloc-131072 650KB 650KB [ 49.173738] kmalloc-65536 264KB 264KB [ 49.179104] kmalloc-32768 825KB 825KB [ 49.184453] kmalloc-16384 181KB 181KB [ 49.189801] kmalloc-8192 519KB 519KB [ 49.195150] kmalloc-4096 6770KB 6808KB [ 49.200508] kmalloc-2048 3236KB 3238KB [ 49.205862] kmalloc-1024 3748KB 3748KB [ 49.211212] kmalloc-512 2786KB 2790KB [ 49.216562] kmalloc-256 1955KB 2512KB [ 49.221910] kmalloc-128 408KB 515KB [ 49.227259] kmalloc-96 2060KB 2060KB [ 49.232610] kmalloc-64 2474KB 2476KB [ 49.237965] kmalloc-32 2404KB 2405KB [ 49.243315] kmalloc-192 915KB 916KB [ 49.248673] kmem_cache 101KB 105KB [ 49.254023] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 49.262613] [ 1818] 0 1818 5385 175 86016 0 -1000 udevd [ 49.270751] [ 3505] 0 3505 14298 173 118784 0 0 rsyslogd [ 49.279150] [ 3560] 0 3560 4725 50 81920 0 0 cron [ 49.287195] [ 3566] 0 3566 3736 45 69632 0 0 mcstransd [ 49.295691] [ 3588] 0 3588 12490 152 135168 0 -1000 sshd [ 49.303746] [ 3630] 0 3630 3694 41 77824 0 0 getty [ 49.311889] [ 3631] 0 3631 3694 42 73728 0 0 getty [ 49.320035] [ 3632] 0 3632 3694 41 77824 0 0 getty [ 49.328178] [ 3633] 0 3633 3694 39 77824 0 0 getty [ 49.336323] [ 3634] 0 3634 3694 40 73728 0 0 getty [ 49.344468] [ 3635] 0 3635 3694 39 77824 0 0 getty [ 49.352619] [ 3636] 0 3636 3649 40 73728 0 0 getty [ 49.360765] [ 3638] 0 3638 5681 454 86016 0 -1000 udevd [ 49.368910] [ 3639] 0 3639 5681 454 86016 0 -1000 udevd [ 49.377056] [ 3657] 0 3657 17821 197 184320 0 0 sshd [ 49.385116] [ 3659] 0 3659 280 1 32768 0 0 syzkaller998488 [ 49.394128] [ 3660] 0 3660 4043 0 32768 0 0 syzkaller998488 [ 49.403139] [ 3661] 0 3661 4043 0 32768 0 0 syzkaller998488 [ 49.412157] [ 3662] 0 3662 4043 0 32768 0 0 syzkaller998488 [ 49.421167] [ 3663] 0 3663 4043 0 32768 0 0 syzkaller998488 [ 49.430182] [ 3664] 0 3664 4043 521 36864 0 0 syzkaller998488 [ 49.439192] [ 3665] 0 3665 4043 521 36864 0 0 syzkaller998488 [ 49.448201] [ 3666] 0 3666 4043 521 36864 0 0 syzkaller998488 [ 49.457215] [ 3667] 0 3667 4043 521 36864 0 0 syzkaller998488 [ 49.466226] Out of memory: Kill process 3664 (syzkaller998488) score 0 or sacrifice child [ 49.474602] Killed process 3664 (syzkaller998488) total-vm:16172kB, anon-rss:2084kB, file-rss:0kB, shmem-rss:0kB [ 49.486628] oom_reaper: reaped process 3664 (syzkaller998488), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 49.497608] syzkaller998488 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 49.509956] syzkaller998488 cpuset=/ mems_allowed=0 [ 49.514988] CPU: 1 PID: 3665 Comm: syzkaller998488 Not tainted 4.15.0-rc8+ #198 [ 49.522414] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.531744] Call Trace: [ 49.534316] dump_stack+0x194/0x257 [ 49.537920] ? arch_local_irq_restore+0x53/0x53 [ 49.542570] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 49.547752] dump_header+0x28c/0xe1e [ 49.551468] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 49.556655] ? pagefault_out_of_memory+0x152/0x152 [ 49.561563] ? check_noncircular+0x20/0x20 [ 49.565785] ? print_irqtrace_events+0x270/0x270 [ 49.570521] ? __lock_acquire+0x664/0x3e00 [ 49.574747] ? check_noncircular+0x20/0x20 [ 49.578980] ? find_held_lock+0x35/0x1d0 [ 49.583041] ? check_noncircular+0x20/0x20 [ 49.587262] ? task_will_free_mem+0x252/0xaa0 [ 49.591759] ? print_irqtrace_events+0x270/0x270 [ 49.596516] ? ___ratelimit+0x30d/0x630 [ 49.600480] ? lock_downgrade+0x980/0x980 [ 49.604624] ? lock_release+0xa40/0xa40 [ 49.608595] ? mark_held_locks+0xaf/0x100 [ 49.612735] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 49.617830] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 49.622829] ? trace_hardirqs_on+0xd/0x10 [ 49.626965] ? ___ratelimit+0x95/0x630 [ 49.630845] ? idr_get_free_cmn+0xfd0/0xfd0 [ 49.635158] ? check_noncircular+0x20/0x20 [ 49.639378] ? find_held_lock+0x138/0x1d0 [ 49.643515] oom_kill_process+0x8b5/0x14a0 [ 49.647741] ? has_ns_capability_noaudit+0x163/0x2a0 [ 49.652827] ? lock_downgrade+0x980/0x980 [ 49.656968] ? oom_evaluate_task+0x480/0x480 [ 49.661373] ? security_capable_noaudit+0x8b/0xc0 [ 49.666209] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 49.671304] ? has_capability+0x30/0x30 [ 49.675270] ? do_raw_spin_trylock+0x190/0x190 [ 49.679850] ? check_noncircular+0x20/0x20 [ 49.684085] ? has_capability_noaudit+0x24/0x30 [ 49.688739] ? oom_badness+0xd1/0x980 [ 49.693085] ? lock_release+0xa40/0xa40 [ 49.697046] ? do_try_to_free_pages+0xc53/0x1020 [ 49.701796] ? find_lock_task_mm+0x460/0x460 [ 49.706202] ? find_held_lock+0x35/0x1d0 [ 49.710263] ? out_of_memory+0xb3a/0x1220 [ 49.714402] ? lock_downgrade+0x980/0x980 [ 49.718534] ? lock_release+0xa40/0xa40 [ 49.722490] ? lock_acquire+0x1d5/0x580 [ 49.726452] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 49.731385] ? oom_evaluate_task+0x284/0x480 [ 49.735789] out_of_memory+0x86d/0x1220 [ 49.739754] ? oom_killer_disable+0x310/0x310 [ 49.744228] ? mutex_trylock+0x23a/0x2d0 [ 49.748276] ? __lock_is_held+0xb6/0x140 [ 49.752320] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 49.757763] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 49.762610] ? warn_alloc+0x2b0/0x2b0 [ 49.766386] ? lock_release+0xa40/0xa40 [ 49.770336] ? print_irqtrace_events+0x270/0x270 [ 49.775070] ? find_held_lock+0x35/0x1d0 [ 49.779111] ? __mutex_lock+0x5bd/0x1a80 [ 49.783166] ? __lock_acquire+0x664/0x3e00 [ 49.787370] ? lock_release+0xa40/0xa40 [ 49.791318] ? memset+0x31/0x40 [ 49.794582] ? do_raw_spin_trylock+0x190/0x190 [ 49.799155] ? __lock_is_held+0xb6/0x140 [ 49.803211] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 49.809068] ? find_held_lock+0x35/0x1d0 [ 49.813109] ? __might_sleep+0x95/0x190 [ 49.817061] __alloc_pages_nodemask+0x9fb/0xd80 [ 49.821711] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 49.826705] ? pcpu_chunk_refresh_hint+0x425/0x570 [ 49.831616] ? print_irqtrace_events+0x270/0x270 [ 49.836351] ? __lock_is_held+0xb6/0x140 [ 49.840403] ? find_next_bit+0x27/0x30 [ 49.844267] pcpu_populate_chunk+0x1b3/0x880 [ 49.848660] pcpu_alloc+0x978/0x10e0 [ 49.852355] ? pcpu_free_area+0xa00/0xa00 [ 49.856479] ? vmap_page_range_noflush+0x523/0x720 [ 49.861411] ? retint_kernel+0x10/0x10 [ 49.865287] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 49.870290] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 49.875035] ? retint_kernel+0x10/0x10 [ 49.878911] __alloc_percpu_gfp+0x27/0x30 [ 49.883041] array_map_alloc+0x794/0x990 [ 49.887082] ? perf_event_fd_array_get_ptr+0x230/0x230 [ 49.892331] SyS_bpf+0x93c/0x4840 [ 49.895755] ? check_noncircular+0x20/0x20 [ 49.899969] ? bpf_prog_get+0x20/0x20 [ 49.903746] ? perf_event_fork+0x30/0x30 [ 49.907798] ? __lock_is_held+0xb6/0x140 [ 49.911831] ? check_noncircular+0x20/0x20 [ 49.916056] ? __handle_mm_fault+0x80e/0x3ce0 [ 49.920530] ? check_noncircular+0x20/0x20 [ 49.924735] ? __pmd_alloc+0x4e0/0x4e0 [ 49.928597] ? vma_link+0xe9/0x170 [ 49.932113] ? find_held_lock+0x35/0x1d0 [ 49.936161] ? handle_mm_fault+0x248/0x8d0 [ 49.940369] ? find_held_lock+0x35/0x1d0 [ 49.944411] ? __do_page_fault+0x5f7/0xc90 [ 49.948636] ? lock_downgrade+0x980/0x980 [ 49.952765] ? handle_mm_fault+0x410/0x8d0 [ 49.956971] ? down_read_trylock+0xdb/0x170 [ 49.961263] ? __do_page_fault+0x32d/0xc90 [ 49.965472] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 49.970031] ? vmacache_find+0x5f/0x280 [ 49.973981] ? vmacache_update+0xfe/0x130 [ 49.978108] ? up_read+0x1a/0x40 [ 49.981448] ? __do_page_fault+0x3d6/0xc90 [ 49.985670] ? mm_fault_error+0x2c0/0x2c0 [ 49.989803] ? do_page_fault+0xee/0x720 [ 49.993751] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 49.999266] ? __do_page_fault+0xc90/0xc90 [ 50.003484] ? SyS_mmap_pgoff+0x243/0x5f0 [ 50.007631] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 50.012369] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 50.017098] RIP: 0033:0x440179 [ 50.020259] RSP: 002b:00007ffc010ae7a8 EFLAGS: 00000217 ORIG_RAX: 0000000000000141 [ 50.027940] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 0000000000440179 [ 50.035180] RDX: 000000000000002c RSI: 00000000203dc000 RDI: 0000000000000000 [ 50.042421] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 50.049663] R10: 00000000ffffffff R11: 0000000000000217 R12: 00000000004016a0 [ 50.056903] R13: 0000000000401730 R14: 0000000000000000 R15: 0000000000000000 [ 50.064457] Mem-Info: [ 50.067114] active_anon:3507 inactive_anon:63 isolated_anon:0 [ 50.067114] active_file:13 inactive_file:6 isolated_file:7 [ 50.067114] unevictable:0 dirty:0 writeback:0 unstable:0 [ 50.067114] slab_reclaimable:7284 slab_unreclaimable:83191 [ 50.067114] mapped:2 shmem:70 pagetables:305 bounce:0 [ 50.067114] free:23417 free_pcp:39 free_cma:0 [ 50.099320] Node 0 active_anon:14028kB inactive_anon:252kB active_file:52kB inactive_file:24kB unevictable:0kB isolated(anon):0kB isolated(file):28kB mapped:8kB dirty:0kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 6144kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 50.126222] 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 [ 50.152335] lowmem_reserve[]: 0 2870 6381 6381 [ 50.156933] Node 0 DMA32 free:44332kB min:30328kB low:37908kB high:45488kB active_anon:28kB inactive_anon:4kB active_file:8kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2942312kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 50.184168] lowmem_reserve[]: 0 0 3510 3510 [ 50.188485] Node 0 Normal free:33428kB min:37084kB low:46352kB high:55620kB active_anon:14000kB inactive_anon:248kB active_file:44kB inactive_file:24kB unevictable:0kB writepending:0kB present:4718592kB managed:3594624kB mlocked:0kB kernel_stack:3072kB pagetables:1220kB bounce:0kB free_pcp:164kB local_pcp:140kB free_cma:0kB [ 50.217407] lowmem_reserve[]: 0 0 0 0 [ 50.221237] 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 [ 50.234860] Node 0 DMA32: 7*4kB (UM) 4*8kB (UM) 7*16kB (UM) 2*32kB (M) 3*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (UM) 3*1024kB (UM) 2*2048kB (M) 8*4096kB (M) = 44332kB [ 50.250341] Node 0 Normal: 407*4kB (UME) 377*8kB (UM) 234*16kB (M) 171*32kB (M) 79*64kB (UME) 48*128kB (UM) 31*256kB (UM) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 33508kB [ 50.265733] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 50.274292] 96 total pagecache pages [ 50.277994] 0 pages in swap cache [ 50.281441] Swap cache stats: add 0, delete 0, find 0/0 [ 50.286791] Free swap = 0kB [ 50.289793] Total swap = 0kB [ 50.292795] 1965979 pages RAM [ 50.295886] 0 pages HighMem/MovableOnly [ 50.299845] 327768 pages reserved [ 50.303282] Unreclaimable slab info: [ 50.306982] Name Used Total [ 50.312513] hashtab_node 118KB 119KB [ 50.317865] ebitmap_node 382KB 385KB [ 50.323221] avtab_node 1012KB 1013KB [ 50.328576] TIPC 1KB 7KB [ 50.333931] SCTPv6 2KB 4KB [ 50.339294] DCCPv6 2KB 7KB [ 50.344643] DCCP 2KB 6KB [ 50.350027] fib6_nodes 0KB 4KB [ 50.355383] ip6_dst_cache 5KB 11KB [ 50.360731] RAWv6 9KB 13KB [ 50.366081] UDPv6 12KB 14KB [ 50.371432] TCPv6 2KB 5KB [ 50.376790] sd_ext_cdb 0KB 3KB [ 50.382138] scsi_sense_cache 84KB 140KB [ 50.387488] virtio_scsi_cmd 16KB 16KB [ 50.392845] sgpool-128 8KB 8KB [ 50.398193] sgpool-64 4KB 6KB [ 50.403541] sgpool-32 78KB 78KB [ 50.408892] sgpool-16 28KB 30KB [ 50.414247] sgpool-8 176KB 176KB [ 50.419603] cfq_io_cq 15KB 19KB [ 50.424962] cfq_queue 24KB 30KB [ 50.430410] mqueue_inode_cache 1KB 7KB [ 50.435852] nfs_commit_data 3KB 7KB [ 50.441201] nfs_write_data 34KB 37KB [ 50.446553] jbd2_inode 1KB 3KB [ 50.451902] ext4_system_zone 0KB 3KB [ 50.457255] bio-1 1KB 3KB [ 50.462614] rpc_buffers 17KB 19KB [ 50.467972] rpc_tasks 2KB 3KB [ 50.473758] UNIX 773KB 773KB [ 50.479114] tcp_bind_bucket 0KB 4KB [ 50.484466] ip_fib_trie 0KB 3KB [ 50.489818] ip_fib_alias 0KB 3KB [ 50.495167] ip_dst_cache 3KB 8KB [ 50.500517] RAW 5KB 7KB [ 50.505866] UDP 29KB 39KB [ 50.511216] TCP 7KB 7KB [ 50.516565] hugetlbfs_inode_cache 1KB 7KB [ 50.522274] eventpoll_pwq 10KB 11KB [ 50.527624] eventpoll_epi 19KB 23KB [ 50.532973] inotify_inode_mark 3KB 7KB [ 50.538425] request_queue 33KB 67KB [ 50.543778] blkdev_ioc 20KB 27KB [ 50.549132] bio-0 296KB 296KB [ 50.554482] biovec-(1<<(21-12)) 470KB 470KB [ 50.560021] biovec-64 110KB 110KB [ 50.565372] biovec-16 13KB 15KB [ 50.570723] bio_integrity_payload 0KB 4KB [ 50.576422] khugepaged_mm_slot 0KB 3KB [ 50.581872] uid_cache 0KB 3KB [ 50.587222] dmaengine-unmap-2 0KB 3KB [ 50.592581] audit_buffer 0KB 3KB [ 50.597933] skbuff_fclone_cache 143KB 146KB [ 50.603455] skbuff_head_cache 2017KB 2017KB [ 50.608804] configfs_dir_cache 0KB 4KB [ 50.614240] file_lock_cache 164KB 166KB [ 50.619591] file_lock_ctx 1KB 3KB [ 50.624944] fsnotify_mark_connector 2KB 3KB [ 50.630814] shmem_inode_cache 1055KB 1058KB [ 50.636166] task_delay_info 319KB 343KB [ 50.641521] sigqueue 367KB 370KB [ 50.646873] kernfs_node_cache 2290KB 2291KB [ 50.652225] mnt_cache 15KB 20KB [ 50.657579] filp 8354KB 8846KB [ 50.662933] names_cache 111005KB 111035KB [ 50.668286] avc_node 38KB 43KB [ 50.673646] selinux_file_security 422KB 492KB [ 50.679346] selinux_inode_security 1951KB 1956KB [ 50.685131] key_jar 3KB 7KB [ 50.690485] nsproxy 0KB 3KB [ 50.695836] vm_area_struct 18747KB 18755KB [ 50.701185] mm_struct 4535KB 4546KB [ 50.706536] fs_cache 426KB 436KB [ 50.711886] files_cache 1598KB 1601KB [ 50.717238] signal_cache 2550KB 2558KB [ 50.722662] sighand_cache 215KB 319KB [ 50.728024] task_struct 10884KB 10884KB [ 50.733391] cred_jar 2360KB 2364KB [ 50.738755] anon_vma_chain 7865KB 7867KB [ 50.744128] anon_vma 140KB 319KB [ 50.749488] pid 222KB 240KB [ 50.754856] Acpi-Operand 106KB 170KB [ 50.760234] Acpi-Namespace 19KB 23KB [ 50.765596] numa_policy 0KB 3KB [ 50.770962] debug_objects_cache 342KB 345KB [ 50.776516] trace_event_file 145KB 147KB [ 50.781894] ftrace_event_field 257KB 259KB [ 50.787348] pool_workqueue 24KB 28KB [ 50.792720] page->ptl 3105KB 3111KB [ 50.798116] kmalloc-262144 1032KB 1032KB [ 50.803503] kmalloc-131072 650KB 650KB [ 50.808863] kmalloc-65536 264KB 264KB [ 50.814235] kmalloc-32768 825KB 825KB [ 50.819612] kmalloc-16384 181KB 181KB [ 50.824973] kmalloc-8192 519KB 519KB [ 50.830347] kmalloc-4096 6761KB 6791KB [ 50.835709] kmalloc-2048 3236KB 3238KB [ 50.841078] kmalloc-1024 3748KB 3748KB [ 50.846456] kmalloc-512 2786KB 2790KB [ 50.851818] kmalloc-256 1938KB 2493KB [ 50.857187] kmalloc-128 407KB 515KB [ 50.863146] kmalloc-96 2064KB 2064KB [ 50.868528] kmalloc-64 2476KB 2476KB [ 50.873924] kmalloc-32 2404KB 2405KB [ 50.879285] kmalloc-192 916KB 916KB [ 50.884654] kmem_cache 101KB 105KB [ 50.890043] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 50.898644] [ 1818] 0 1818 5385 175 86016 0 -1000 udevd [ 50.906810] [ 3505] 0 3505 14298 173 118784 0 0 rsyslogd [ 50.915219] [ 3560] 0 3560 4725 50 81920 0 0 cron [ 50.923293] [ 3566] 0 3566 3736 45 69632 0 0 mcstransd [ 50.931825] [ 3588] 0 3588 12490 152 135168 0 -1000 sshd [ 50.939901] [ 3630] 0 3630 3694 41 77824 0 0 getty [ 50.948056] [ 3631] 0 3631 3694 42 73728 0 0 getty [ 50.956213] [ 3632] 0 3632 3694 41 77824 0 0 getty [ 50.964380] [ 3633] 0 3633 3694 39 77824 0 0 getty [ 50.972547] [ 3634] 0 3634 3694 40 73728 0 0 getty [ 50.980708] [ 3635] 0 3635 3694 39 77824 0 0 getty [ 50.988869] [ 3636] 0 3636 3649 40 73728 0 0 getty [ 50.997058] [ 3638] 0 3638 5681 454 86016 0 -1000 udevd [ 51.005226] [ 3639] 0 3639 5681 454 86016 0 -1000 udevd [ 51.013396] [ 3657] 0 3657 17821 197 184320 0 0 sshd [ 51.021476] [ 3659] 0 3659 280 1 32768 0 0 syzkaller998488 [ 51.030513] [ 3660] 0 3660 4043 0 32768 0 0 syzkaller998488 [ 51.039549] [ 3661] 0 3661 4043 0 32768 0 0 syzkaller998488 [ 51.048587] [ 3662] 0 3662 4043 0 32768 0 0 syzkaller998488 [ 51.057626] [ 3663] 0 3663 4043 0 32768 0 0 syzkaller998488 [ 51.066690] [ 3664] 0 3664 4043 0 32768 0 0 syzkaller998488 [ 51.075730] [ 3665] 0 3665 4043 521 36864 0 0 syzkaller998488 [ 51.084763] [ 3666] 0 3666 4043 521 36864 0 0 syzkaller998488 [ 51.093797] [ 3667] 0 3667 4043 521 36864 0 0 syzkaller998488 [ 51.102826] Out of memory: Kill process 3665 (syzkaller998488) score 0 or sacrifice child [ 51.111168] Killed process 3665 (syzkaller998488) total-vm:16172kB, anon-rss:2084kB, file-rss:0kB, shmem-rss:0kB [ 51.122450] oom_reaper: reaped process 3665 (syzkaller998488), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 51.132930] cron invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=0 [ 51.143961] cron cpuset=/ mems_allowed=0 [ 51.148059] CPU: 0 PID: 3560 Comm: cron Not tainted 4.15.0-rc8+ #198 [ 51.154534] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.163871] Call Trace: [ 51.166455] dump_stack+0x194/0x257 [ 51.170076] ? arch_local_irq_restore+0x53/0x53 [ 51.174737] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 51.179932] dump_header+0x28c/0xe1e [ 51.183646] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 51.188830] ? pagefault_out_of_memory+0x152/0x152 [ 51.193750] ? check_noncircular+0x20/0x20 [ 51.197977] ? print_irqtrace_events+0x270/0x270 [ 51.202730] ? __lock_acquire+0x664/0x3e00 [ 51.206967] ? check_noncircular+0x20/0x20 [ 51.211204] ? find_held_lock+0x35/0x1d0 [ 51.215268] ? check_noncircular+0x20/0x20 [ 51.219495] ? task_will_free_mem+0x252/0xaa0 [ 51.223988] ? print_irqtrace_events+0x270/0x270 [ 51.228744] ? ___ratelimit+0x30d/0x630 [ 51.232712] ? lock_downgrade+0x980/0x980 [ 51.236856] ? lock_release+0xa40/0xa40 [ 51.240829] ? mark_held_locks+0xaf/0x100 [ 51.244970] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 51.250064] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 51.255070] ? trace_hardirqs_on+0xd/0x10 [ 51.259211] ? ___ratelimit+0x95/0x630 [ 51.263093] ? idr_get_free_cmn+0xfd0/0xfd0 [ 51.267406] ? check_noncircular+0x20/0x20 [ 51.271626] ? find_held_lock+0x138/0x1d0 [ 51.275776] oom_kill_process+0x8b5/0x14a0 [ 51.280005] ? has_ns_capability_noaudit+0x163/0x2a0 [ 51.285105] ? lock_downgrade+0x980/0x980 [ 51.289249] ? oom_evaluate_task+0x480/0x480 [ 51.293665] ? security_capable_noaudit+0x8b/0xc0 [ 51.298504] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 51.303597] ? has_capability+0x30/0x30 [ 51.307562] ? do_raw_spin_trylock+0x190/0x190 [ 51.312132] ? check_noncircular+0x20/0x20 [ 51.316368] ? has_capability_noaudit+0x24/0x30 [ 51.321028] ? oom_badness+0xd1/0x980 [ 51.324814] ? lock_release+0xa40/0xa40 [ 51.328772] ? do_try_to_free_pages+0xc53/0x1020 [ 51.333521] ? find_lock_task_mm+0x460/0x460 [ 51.337926] ? find_held_lock+0x35/0x1d0 [ 51.341992] ? out_of_memory+0xb3a/0x1220 [ 51.346131] ? lock_downgrade+0x980/0x980 [ 51.350277] ? lock_release+0xa40/0xa40 [ 51.354237] ? lock_acquire+0x1d5/0x580 [ 51.358200] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 51.363133] ? oom_evaluate_task+0x284/0x480 [ 51.367538] out_of_memory+0x86d/0x1220 [ 51.371519] ? oom_killer_disable+0x310/0x310 [ 51.376000] ? mutex_trylock+0x23a/0x2d0 [ 51.380049] ? __lock_is_held+0xb6/0x140 [ 51.384107] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 51.389568] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 51.394416] ? trace_hardirqs_on+0xd/0x10 [ 51.398585] ? warn_alloc+0x2b0/0x2b0 [ 51.402379] ? lock_downgrade+0x980/0x980 [ 51.406531] ? radix_tree_lookup_slot+0x99/0xe0 [ 51.411214] ? find_get_entry+0x53c/0x9e0 [ 51.415389] ? __lock_acquire+0x664/0x3e00 [ 51.419665] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 51.425559] ? __might_sleep+0x95/0x190 [ 51.429534] __alloc_pages_nodemask+0x9fb/0xd80 [ 51.434203] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 51.439212] ? add_to_page_cache_lru+0x510/0x510 [ 51.443969] ? check_noncircular+0x20/0x20 [ 51.448191] ? check_noncircular+0x20/0x20 [ 51.452412] ? _find_next_bit+0xee/0x120 [ 51.456468] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 51.461245] alloc_pages_current+0xb6/0x1e0 [ 51.465569] __page_cache_alloc+0x334/0x500 [ 51.469879] ? rcu_read_lock_held+0xa9/0xc0 [ 51.474199] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 51.481566] filemap_fault+0xefc/0x1c20 [ 51.485532] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 51.490730] ? __lock_page_or_retry+0x4f0/0x4f0 [ 51.495407] ? filemap_map_pages+0x942/0x15d0 [ 51.499914] ? find_get_entries_tag+0xeb0/0xeb0 [ 51.504581] ? check_noncircular+0x20/0x20 [ 51.508808] ? check_noncircular+0x20/0x20 [ 51.513025] ? find_held_lock+0x35/0x1d0 [ 51.517080] ? print_irqtrace_events+0x270/0x270 [ 51.521823] ? print_irqtrace_events+0x270/0x270 [ 51.526570] ? lock_downgrade+0x980/0x980 [ 51.530727] ? lock_acquire+0x1d5/0x580 [ 51.534689] ? lock_acquire+0x1d5/0x580 [ 51.538655] ? ext4_filemap_fault+0x7a/0xad [ 51.542968] ? __lock_acquire+0x664/0x3e00 [ 51.547198] ? lock_release+0xa40/0xa40 [ 51.551163] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 51.557040] ? rcu_note_context_switch+0x710/0x710 [ 51.561971] ? __might_sleep+0x95/0x190 [ 51.565947] ? down_read+0x96/0x150 [ 51.569564] ? ext4_filemap_fault+0x7a/0xad [ 51.573876] ? __down_interruptible+0x6b0/0x6b0 [ 51.578558] ext4_filemap_fault+0x82/0xad [ 51.582702] __do_fault+0xeb/0x30f [ 51.586235] ? pte_offset_kernel+0xc7/0xc7 [ 51.590468] ? do_raw_spin_trylock+0x190/0x190 [ 51.595048] ? check_noncircular+0x20/0x20 [ 51.599285] __handle_mm_fault+0x1d8f/0x3ce0 [ 51.603696] ? __pmd_alloc+0x4e0/0x4e0 [ 51.607583] ? find_held_lock+0x35/0x1d0 [ 51.611648] ? handle_mm_fault+0x248/0x8d0 [ 51.615873] ? lock_downgrade+0x980/0x980 [ 51.620048] handle_mm_fault+0x334/0x8d0 [ 51.624097] ? down_read_trylock+0xdb/0x170 [ 51.628407] ? __do_page_fault+0x32d/0xc90 [ 51.632633] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 51.637198] ? vmacache_find+0x5f/0x280 [ 51.641168] ? find_vma+0x30/0x150 [ 51.644707] __do_page_fault+0x5c9/0xc90 [ 51.648772] ? mm_fault_error+0x2c0/0x2c0 [ 51.652927] do_page_fault+0xee/0x720 [ 51.656717] ? nanosleep_copyout+0x100/0x100 [ 51.661117] ? __do_page_fault+0xc90/0xc90 [ 51.665342] ? enqueue_hrtimer+0x4a0/0x4a0 [ 51.669573] ? SyS_rt_sigprocmask+0x191/0x220 [ 51.674066] ? retint_user+0x18/0x18 [ 51.677767] ? page_fault+0x36/0x60 [ 51.681385] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.686219] ? page_fault+0x36/0x60 [ 51.689836] page_fault+0x4c/0x60 [ 51.693277] RIP: 0033:0x7f7e64091060 [ 51.696977] RSP: 002b:00007fff8a11d608 EFLAGS: 00010202 [ 51.702327] RAX: 00007f7e643e7301 RBX: 00007f7e643e7380 RCX: ffffffffff600409 [ 51.709581] RDX: 00007f7e643e7380 RSI: 0000000000000001 RDI: 00007f7e641aaaa1 [ 51.716835] RBP: 0000000000000001 R08: 00007fff8a11d4d0 R09: 0000000000000000 [ 51.724089] R10: 0000000000000008 R11: 0000000000000206 R12: 0000000000000001 [ 51.731345] R13: 00007fff8a11d7d0 R14: 0000000000000000 R15: 0000000000000000 [ 51.738704] Mem-Info: [ 51.741147] active_anon:2991 inactive_anon:63 isolated_anon:0 [ 51.741147] active_file:11 inactive_file:15 isolated_file:0 [ 51.741147] unevictable:0 dirty:0 writeback:0 unstable:0 [ 51.741147] slab_reclaimable:7284 slab_unreclaimable:83184 [ 51.741147] mapped:2 shmem:70 pagetables:305 bounce:0 [ 51.741147] free:23081 free_pcp:73 free_cma:0 [ 51.773878] Node 0 active_anon:11960kB inactive_anon:252kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 4096kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 51.800703] 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 [ 51.826849] lowmem_reserve[]: 0 2870 6381 6381 [ 51.831459] Node 0 DMA32 free:44332kB min:30328kB low:37908kB high:45488kB active_anon:28kB inactive_anon:4kB active_file:0kB inactive_file:8kB unevictable:0kB writepending:0kB present:3129332kB managed:2942312kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 51.858737] lowmem_reserve[]: 0 0 3510 3510 [ 51.863090] Node 0 Normal free:32084kB min:37084kB low:46352kB high:55620kB active_anon:11932kB inactive_anon:248kB active_file:24kB inactive_file:72kB unevictable:0kB writepending:0kB present:4718592kB managed:3594624kB mlocked:0kB kernel_stack:3072kB pagetables:1216kB bounce:0kB free_pcp:308kB local_pcp:176kB free_cma:0kB [ 51.891917] lowmem_reserve[]: 0 0 0 0 [ 51.895747] 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 [ 51.909345] Node 0 DMA32: 7*4kB (UM) 4*8kB (UM) 7*16kB (UM) 2*32kB (M) 3*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (UM) 3*1024kB (UM) 2*2048kB (M) 8*4096kB (M) = 44332kB [ 51.925101] Node 0 Normal: 369*4kB (ME) 350*8kB (UM) 228*16kB (UM) 171*32kB (UM) 78*64kB (UME) 47*128kB (UM) 30*256kB (UM) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 32084kB [ 51.940326] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 51.948922] 96 total pagecache pages [ 51.952640] 0 pages in swap cache [ 51.956111] Swap cache stats: add 0, delete 0, find 0/0 [ 51.961475] Free swap = 0kB [ 51.964496] Total swap = 0kB [ 51.967528] 1965979 pages RAM [ 51.970630] 0 pages HighMem/MovableOnly [ 51.974608] 327768 pages reserved [ 51.978062] Unreclaimable slab info: [ 51.981779] Name Used Total [ 51.987337] hashtab_node 118KB 119KB [ 51.992716] ebitmap_node 382KB 385KB [ 51.998099] avtab_node 1012KB 1013KB [ 52.003484] TIPC 1KB 7KB [ 52.008867] SCTPv6 2KB 4KB [ 52.014254] DCCPv6 2KB 7KB [ 52.019630] DCCP 2KB 6KB [ 52.025066] fib6_nodes 0KB 4KB [ 52.030446] ip6_dst_cache 5KB 11KB [ 52.035828] RAWv6 9KB 13KB [ 52.041206] UDPv6 12KB 14KB [ 52.046591] TCPv6 2KB 5KB [ 52.051987] sd_ext_cdb 0KB 3KB [ 52.057368] scsi_sense_cache 82KB 140KB [ 52.062744] virtio_scsi_cmd 16KB 16KB [ 52.068126] sgpool-128 8KB 8KB [ 52.073509] sgpool-64 4KB 6KB [ 52.078890] sgpool-32 77KB 78KB [ 52.084269] sgpool-16 28KB 30KB [ 52.089666] sgpool-8 176KB 176KB [ 52.095047] cfq_io_cq 15KB 19KB [ 52.100430] cfq_queue 24KB 30KB [ 52.105810] mqueue_inode_cache 1KB 7KB [ 52.111264] nfs_commit_data 3KB 7KB [ 52.116633] nfs_write_data 34KB 37KB [ 52.122041] jbd2_inode 1KB 3KB [ 52.127426] ext4_system_zone 0KB 3KB [ 52.132813] bio-1 1KB 3KB [ 52.138179] rpc_buffers 17KB 19KB [ 52.143552] rpc_tasks 2KB 3KB [ 52.148930] UNIX 773KB 773KB [ 52.154323] tcp_bind_bucket 0KB 4KB [ 52.159704] ip_fib_trie 0KB 3KB [ 52.165084] ip_fib_alias 0KB 3KB [ 52.170463] ip_dst_cache 3KB 8KB [ 52.175842] RAW 5KB 7KB [ 52.181232] UDP 29KB 39KB [ 52.186616] TCP 7KB 7KB [ 52.192035] hugetlbfs_inode_cache 1KB 7KB [ 52.197763] eventpoll_pwq 10KB 11KB [ 52.203144] eventpoll_epi 19KB 23KB [ 52.208526] inotify_inode_mark 3KB 7KB [ 52.213995] request_queue 33KB 67KB [ 52.219361] blkdev_ioc 20KB 27KB [ 52.224728] bio-0 295KB 296KB [ 52.230105] biovec-(1<<(21-12)) 470KB 470KB [ 52.235661] biovec-64 110KB 110KB [ 52.241041] biovec-16 13KB 15KB [ 52.246422] bio_integrity_payload 0KB 4KB [ 52.252155] khugepaged_mm_slot 0KB 3KB [ 52.257625] uid_cache 0KB 3KB [ 52.263007] dmaengine-unmap-2 0KB 3KB [ 52.268409] audit_buffer 0KB 3KB [ 52.273791] skbuff_fclone_cache 143KB 146KB [ 52.279346] skbuff_head_cache 2017KB 2017KB [ 52.284750] configfs_dir_cache 0KB 4KB [ 52.290450] file_lock_cache 164KB 166KB [ 52.295846] file_lock_ctx 1KB 3KB [ 52.301218] fsnotify_mark_connector 2KB 3KB [ 52.307094] shmem_inode_cache 1055KB 1058KB [ 52.312448] task_delay_info 319KB 343KB [ 52.317799] sigqueue 367KB 370KB [ 52.323153] kernfs_node_cache 2290KB 2291KB [ 52.328505] mnt_cache 15KB 20KB [ 52.333856] filp 8347KB 8838KB [ 52.339232] names_cache 111005KB 111035KB [ 52.344586] avc_node 38KB 43KB [ 52.349939] selinux_file_security 422KB 492KB [ 52.355637] selinux_inode_security 1951KB 1956KB [ 52.361561] key_jar 3KB 7KB [ 52.366913] nsproxy 0KB 3KB [ 52.372266] vm_area_struct 18747KB 18755KB [ 52.377615] mm_struct 4535KB 4546KB [ 52.382968] fs_cache 426KB 436KB [ 52.388320] files_cache 1598KB 1601KB [ 52.393679] signal_cache 2550KB 2558KB [ 52.399032] sighand_cache 215KB 319KB [ 52.404385] task_struct 10884KB 10884KB [ 52.409739] cred_jar 2360KB 2364KB [ 52.415094] anon_vma_chain 7865KB 7867KB [ 52.420455] anon_vma 139KB 319KB [ 52.425808] pid 222KB 240KB [ 52.431159] Acpi-Operand 106KB 170KB [ 52.436513] Acpi-Namespace 19KB 23KB [ 52.441873] numa_policy 0KB 3KB [ 52.447224] debug_objects_cache 342KB 345KB [ 52.452749] trace_event_file 145KB 147KB [ 52.458100] ftrace_event_field 257KB 259KB [ 52.463542] pool_workqueue 24KB 28KB [ 52.468894] page->ptl 3105KB 3111KB [ 52.474257] kmalloc-262144 1032KB 1032KB [ 52.479616] kmalloc-131072 650KB 650KB [ 52.484963] kmalloc-65536 264KB 264KB [ 52.490328] kmalloc-32768 825KB 825KB [ 52.495679] kmalloc-16384 181KB 181KB [ 52.501028] kmalloc-8192 519KB 519KB [ 52.506377] kmalloc-4096 6753KB 6791KB [ 52.511743] kmalloc-2048 3236KB 3238KB [ 52.517099] kmalloc-1024 3746KB 3748KB [ 52.522451] kmalloc-512 2786KB 2790KB [ 52.527812] kmalloc-256 1936KB 2486KB [ 52.533160] kmalloc-128 406KB 515KB [ 52.538513] kmalloc-96 2065KB 2068KB [ 52.543865] kmalloc-64 2479KB 2480KB [ 52.549215] kmalloc-32 2402KB 2405KB [ 52.554568] kmalloc-192 915KB 916KB [ 52.559920] kmem_cache 101KB 105KB [ 52.565271] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 52.573864] [ 1818] 0 1818 5385 175 86016 0 -1000 udevd [ 52.582004] [ 3505] 0 3505 14298 173 118784 0 0 rsyslogd [ 52.590413] [ 3560] 0 3560 4725 50 81920 0 0 cron [ 52.598459] [ 3566] 0 3566 3736 45 69632 0 0 mcstransd [ 52.606938] [ 3588] 0 3588 12490 152 135168 0 -1000 sshd [ 52.614991] [ 3630] 0 3630 3694 41 77824 0 0 getty [ 52.623137] [ 3631] 0 3631 3694 42 73728 0 0 getty [ 52.631281] [ 3632] 0 3632 3694 41 77824 0 0 getty [ 52.639417] [ 3633] 0 3633 3694 39 77824 0 0 getty [ 52.647549] [ 3634] 0 3634 3694 40 73728 0 0 getty [ 52.655690] [ 3635] 0 3635 3694 39 77824 0 0 getty [ 52.663822] [ 3636] 0 3636 3649 40 73728 0 0 getty [ 52.671953] [ 3638] 0 3638 5681 454 86016 0 -1000 udevd [ 52.680084] [ 3639] 0 3639 5681 454 86016 0 -1000 udevd [ 52.688216] [ 3657] 0 3657 17821 197 184320 0 0 sshd [ 52.696261] [ 3659] 0 3659 280 1 32768 0 0 syzkaller998488 [ 52.705265] [ 3660] 0 3660 4043 0 32768 0 0 syzkaller998488 [ 52.714274] [ 3661] 0 3661 4043 0 32768 0 0 syzkaller998488 [ 52.723299] [ 3662] 0 3662 4043 0 32768 0 0 syzkaller998488 [ 52.732306] [ 3663] 0 3663 4043 0 32768 0 0 syzkaller998488 [ 52.741309] [ 3664] 0 3664 4043 0 32768 0 0 syzkaller998488 [ 52.750327] [ 3665] 0 3665 4043 0 32768 0 0 syzkaller998488 [ 52.759333] [ 3666] 0 3666 4043 521 36864 0 0 syzkaller998488 [ 52.768372] [ 3667] 0 3667 4043 521 36864 0 0 syzkaller998488 [ 52.777374] Out of memory: Kill process 3666 (syzkaller998488) score 0 or sacrifice child [ 52.785752] Killed process 3666 (syzkaller998488) total-vm:16172kB, anon-rss:2084kB, file-rss:0kB, shmem-rss:0kB [ 52.798646] oom_reaper: reaped process 3666 (syzkaller998488), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 52.808862] cron invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=0 [ 52.819879] cron cpuset=/ mems_allowed=0 [ 52.823939] CPU: 0 PID: 3560 Comm: cron Not tainted 4.15.0-rc8+ #198 [ 52.830400] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.839734] Call Trace: [ 52.842321] dump_stack+0x194/0x257 [ 52.845945] ? arch_local_irq_restore+0x53/0x53 [ 52.850606] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 52.855798] dump_header+0x28c/0xe1e [ 52.860185] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 52.865375] ? pagefault_out_of_memory+0x152/0x152 [ 52.870294] ? check_noncircular+0x20/0x20 [ 52.874524] ? print_irqtrace_events+0x270/0x270 [ 52.879277] ? __lock_acquire+0x664/0x3e00 [ 52.883512] ? check_noncircular+0x20/0x20 [ 52.887750] ? find_held_lock+0x35/0x1d0 [ 52.891821] ? check_noncircular+0x20/0x20 [ 52.896046] ? task_will_free_mem+0x252/0xaa0 [ 52.900544] ? print_irqtrace_events+0x270/0x270 [ 52.905303] ? ___ratelimit+0x30d/0x630 [ 52.909272] ? lock_downgrade+0x980/0x980 [ 52.913417] ? lock_release+0xa40/0xa40 [ 52.917391] ? mark_held_locks+0xaf/0x100 [ 52.921530] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 52.926626] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 52.931632] ? trace_hardirqs_on+0xd/0x10 [ 52.935773] ? ___ratelimit+0x95/0x630 [ 52.939651] ? idr_get_free_cmn+0xfd0/0xfd0 [ 52.943962] ? check_noncircular+0x20/0x20 [ 52.948184] ? find_held_lock+0x138/0x1d0 [ 52.952340] oom_kill_process+0x8b5/0x14a0 [ 52.956571] ? has_ns_capability_noaudit+0x163/0x2a0 [ 52.961668] ? lock_downgrade+0x980/0x980 [ 52.965816] ? oom_evaluate_task+0x480/0x480 [ 52.970236] ? security_capable_noaudit+0x8b/0xc0 [ 52.975077] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 52.980178] ? has_capability+0x30/0x30 [ 52.984145] ? do_raw_spin_trylock+0x190/0x190 [ 52.988723] ? check_noncircular+0x20/0x20 [ 52.992963] ? has_capability_noaudit+0x24/0x30 [ 52.997626] ? oom_badness+0xd1/0x980 [ 53.001413] ? lock_release+0xa40/0xa40 [ 53.005376] ? do_try_to_free_pages+0xc53/0x1020 [ 53.010125] ? find_lock_task_mm+0x460/0x460 [ 53.014535] ? find_held_lock+0x35/0x1d0 [ 53.018599] ? out_of_memory+0xb3a/0x1220 [ 53.022742] ? lock_downgrade+0x980/0x980 [ 53.026890] ? lock_release+0xa40/0xa40 [ 53.030852] ? lock_acquire+0x1d5/0x580 [ 53.034815] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 53.039745] ? oom_evaluate_task+0x284/0x480 [ 53.044156] out_of_memory+0x86d/0x1220 [ 53.048145] ? oom_killer_disable+0x310/0x310 [ 53.052626] ? mutex_trylock+0x23a/0x2d0 [ 53.056680] ? __lock_is_held+0xb6/0x140 [ 53.060731] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 53.066192] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 53.071036] ? trace_hardirqs_on+0xd/0x10 [ 53.075206] ? warn_alloc+0x2b0/0x2b0 [ 53.078999] ? lock_downgrade+0x980/0x980 [ 53.083156] ? radix_tree_lookup_slot+0x99/0xe0 [ 53.087840] ? find_get_entry+0x53c/0x9e0 [ 53.092012] ? __lock_acquire+0x664/0x3e00 [ 53.096288] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 53.102179] ? __might_sleep+0x95/0x190 [ 53.106157] __alloc_pages_nodemask+0x9fb/0xd80 [ 53.110825] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 53.115834] ? add_to_page_cache_lru+0x510/0x510 [ 53.120593] ? check_noncircular+0x20/0x20 [ 53.124814] ? check_noncircular+0x20/0x20 [ 53.129038] ? _find_next_bit+0xee/0x120 [ 53.133095] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 53.137873] alloc_pages_current+0xb6/0x1e0 [ 53.142193] __page_cache_alloc+0x334/0x500 [ 53.146507] ? rcu_read_lock_held+0xa9/0xc0 [ 53.150826] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 53.158179] filemap_fault+0xefc/0x1c20 [ 53.162134] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 53.167305] ? __lock_page_or_retry+0x4f0/0x4f0 [ 53.171964] ? filemap_map_pages+0x942/0x15d0 [ 53.176449] ? find_get_entries_tag+0xeb0/0xeb0 [ 53.181093] ? check_noncircular+0x20/0x20 [ 53.185304] ? check_noncircular+0x20/0x20 [ 53.189510] ? find_held_lock+0x35/0x1d0 [ 53.193545] ? print_irqtrace_events+0x270/0x270 [ 53.198271] ? print_irqtrace_events+0x270/0x270 [ 53.203002] ? lock_downgrade+0x980/0x980 [ 53.207145] ? lock_acquire+0x1d5/0x580 [ 53.211090] ? lock_acquire+0x1d5/0x580 [ 53.215039] ? ext4_filemap_fault+0x7a/0xad [ 53.219335] ? __lock_acquire+0x664/0x3e00 [ 53.223545] ? lock_release+0xa40/0xa40 [ 53.227489] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 53.233350] ? rcu_note_context_switch+0x710/0x710 [ 53.238253] ? __might_sleep+0x95/0x190 [ 53.242204] ? down_read+0x96/0x150 [ 53.245800] ? ext4_filemap_fault+0x7a/0xad [ 53.250093] ? __down_interruptible+0x6b0/0x6b0 [ 53.254744] ext4_filemap_fault+0x82/0xad [ 53.258864] __do_fault+0xeb/0x30f [ 53.262379] ? pte_offset_kernel+0xc7/0xc7 [ 53.266600] ? do_raw_spin_trylock+0x190/0x190 [ 53.271157] ? check_noncircular+0x20/0x20 [ 53.275369] __handle_mm_fault+0x1d8f/0x3ce0 [ 53.279754] ? __pmd_alloc+0x4e0/0x4e0 [ 53.283619] ? find_held_lock+0x35/0x1d0 [ 53.287657] ? handle_mm_fault+0x248/0x8d0 [ 53.291862] ? lock_downgrade+0x980/0x980 [ 53.296005] handle_mm_fault+0x334/0x8d0 [ 53.300043] ? down_read_trylock+0xdb/0x170 [ 53.304336] ? __do_page_fault+0x32d/0xc90 [ 53.308543] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 53.313094] ? vmacache_find+0x5f/0x280 [ 53.317048] ? find_vma+0x30/0x150 [ 53.320564] __do_page_fault+0x5c9/0xc90 [ 53.324602] ? mm_fault_error+0x2c0/0x2c0 [ 53.328733] do_page_fault+0xee/0x720 [ 53.332507] ? nanosleep_copyout+0x100/0x100 [ 53.336888] ? __do_page_fault+0xc90/0xc90 [ 53.341097] ? enqueue_hrtimer+0x4a0/0x4a0 [ 53.345315] ? SyS_rt_sigprocmask+0x191/0x220 [ 53.349795] ? retint_user+0x18/0x18 [ 53.353483] ? page_fault+0x36/0x60 [ 53.357083] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 53.361908] ? page_fault+0x36/0x60 [ 53.365506] page_fault+0x4c/0x60 [ 53.368940] RIP: 0033:0x7f7e64091060 [ 53.372623] RSP: 002b:00007fff8a11d608 EFLAGS: 00010202 [ 53.377959] RAX: 00007f7e643e7301 RBX: 00007f7e643e7380 RCX: ffffffffff600409 [ 53.385200] RDX: 00007f7e643e7380 RSI: 0000000000000001 RDI: 00007f7e641aaaa1 [ 53.392449] RBP: 0000000000000001 R08: 00007fff8a11d4d0 R09: 0000000000000000 [ 53.399693] R10: 0000000000000008 R11: 0000000000000206 R12: 0000000000000001 [ 53.406934] R13: 00007fff8a11d7d0 R14: 0000000000000000 R15: 0000000000000000 [ 53.414244] Mem-Info: [ 53.416676] active_anon:2473 inactive_anon:63 isolated_anon:0 [ 53.416676] active_file:13 inactive_file:13 isolated_file:0 [ 53.416676] unevictable:0 dirty:0 writeback:0 unstable:0 [ 53.416676] slab_reclaimable:7284 slab_unreclaimable:83174 [ 53.416676] mapped:2 shmem:70 pagetables:303 bounce:0 [ 53.416676] free:23597 free_pcp:87 free_cma:0 [ 53.448735] Node 0 active_anon:9892kB inactive_anon:252kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 2048kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 53.476173] 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 [ 53.502322] lowmem_reserve[]: 0 2870 6381 6381 [ 53.506948] Node 0 DMA32 free:44332kB min:30328kB low:37908kB high:45488kB active_anon:28kB inactive_anon:4kB active_file:0kB inactive_file:8kB unevictable:0kB writepending:0kB present:3129332kB managed:2942312kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 53.534223] lowmem_reserve[]: 0 0 3510 3510 [ 53.538590] Node 0 Normal free:34148kB min:37084kB low:46352kB high:55620kB active_anon:9864kB inactive_anon:248kB active_file:24kB inactive_file:72kB unevictable:0kB writepending:0kB present:4718592kB managed:3594624kB mlocked:0kB kernel_stack:3072kB pagetables:1212kB bounce:0kB free_pcp:348kB local_pcp:176kB free_cma:0kB [ 53.567379] lowmem_reserve[]: 0 0 0 0 [ 53.571308] 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 [ 53.584955] Node 0 DMA32: 7*4kB (UM) 4*8kB (UM) 7*16kB (UM) 2*32kB (M) 3*64kB (UM) 5*128kB (UM) 5*256kB (UM) 4*512kB (UM) 3*1024kB (UM) 2*2048kB (M) 8*4096kB (M) = 44332kB [ 53.600559] Node 0 Normal: 369*4kB (ME) 352*8kB (UM) 228*16kB (UM) 171*32kB (UM) 78*64kB (UME) 47*128kB (UM) 30*256kB (UM) 0*512kB 0*1024kB 1*2048kB (M) 0*4096kB = 34148kB [ 53.616134] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 53.624727] 96 total pagecache pages [ 53.628459] 0 pages in swap cache [ 53.631950] Swap cache stats: add 0, delete 0, find 0/0 [ 53.637384] Free swap = 0kB [ 53.640409] Total swap = 0kB [ 53.643423] 1965979 pages RAM [ 53.646513] 0 pages HighMem/MovableOnly [ 53.650472] 327768 pages reserved [ 53.653920] Unreclaimable slab info: [ 53.657716] Name Used Total [ 53.663242] hashtab_node 118KB 119KB [ 53.668594] ebitmap_node 382KB 385KB [ 53.673944] avtab_node 1012KB 1013KB [ 53.679298] TIPC 1KB 7KB [ 53.684651] SCTPv6 2KB 4KB [ 53.690021] DCCPv6 2KB 7KB [ 53.695404] DCCP 2KB 6KB [ 53.700765] fib6_nodes 0KB 4KB [ 53.706115] ip6_dst_cache 5KB 11KB [ 53.711474] RAWv6 9KB 13KB [ 53.716825] UDPv6 12KB 14KB [ 53.722177] TCPv6 2KB 5KB [ 53.727645] sd_ext_cdb 0KB 3KB [ 53.732999] scsi_sense_cache 82KB 140KB [ 53.738373] virtio_scsi_cmd 16KB 16KB [ 53.743740] sgpool-128 8KB 8KB [ 53.749098] sgpool-64 4KB 6KB [ 53.754467] sgpool-32 77KB 78KB [ 53.759845] sgpool-16 28KB 30KB [ 53.765210] sgpool-8 174KB 176KB [ 53.770580] cfq_io_cq 15KB 19KB [ 53.775957] cfq_queue 24KB 30KB [ 53.781320] mqueue_inode_cache 1KB 7KB [ 53.786778] nfs_commit_data 3KB 7KB [ 53.792158] nfs_write_data 34KB 37KB [ 53.797540] jbd2_inode 1KB 3KB [ 53.802902] ext4_system_zone 0KB 3KB [ 53.808283] bio-1 1KB 3KB [ 53.813650] rpc_buffers 17KB 19KB [ 53.819043] rpc_tasks 2KB 3KB [ 53.824414] UNIX 773KB 773KB [ 53.829786] tcp_bind_bucket 0KB 4KB [ 53.835169] ip_fib_trie 0KB 3KB [ 53.840548] ip_fib_alias 0KB 3KB [ 53.845912] ip_dst_cache 3KB 8KB [ 53.851371] RAW 5KB 7KB [ 53.856747] UDP 29KB 39KB [ 53.862120] TCP 7KB 7KB [ 53.867496] hugetlbfs_inode_cache 1KB 7KB [ 53.873228] eventpoll_pwq 10KB 11KB [ 53.878609] eventpoll_epi 19KB 23KB [ 53.883970] inotify_inode_mark 3KB 7KB [ 53.889434] request_queue 33KB 67KB [ 53.894796] blkdev_ioc 20KB 27KB [ 53.900166] bio-0 295KB 296KB [ 53.905546] biovec-(1<<(21-12)) 470KB 470KB [ 53.911088] biovec-64 110KB 110KB [ 53.916459] biovec-16 13KB 15KB [ 53.921822] bio_integrity_payload 0KB 4KB [ 53.927539] khugepaged_mm_slot 0KB 3KB [ 53.932991] uid_cache 0KB 3KB [ 53.938371] dmaengine-unmap-2 0KB 3KB [ 53.943736] audit_buffer 0KB 3KB [ 53.949113] skbuff_fclone_cache 143KB 146KB [ 53.954678] skbuff_head_cache 2017KB 2017KB [ 53.960048] configfs_dir_cache 0KB 4KB [ 53.965507] file_lock_cache 164KB 166KB [ 53.970887] file_lock_ctx 1KB 3KB [ 53.976252] fsnotify_mark_connector 2KB 3KB [ 53.982147] shmem_inode_cache 1055KB 1058KB [ 53.987526] task_delay_info 319KB 343KB [ 53.992890] sigqueue 366KB 370KB [ 53.998260] kernfs_node_cache 2290KB 2291KB [ 54.003639] mnt_cache 15KB 20KB [ 54.009006] filp 8340KB 8831KB [ 54.014411] names_cache 110997KB 111035KB [ 54.019780] avc_node 37KB 43KB [ 54.025154] selinux_file_security 421KB 492KB [ 54.030880] selinux_inode_security 1950KB 1956KB [ 54.036692] key_jar 3KB 7KB [ 54.042071] nsproxy 0KB 3KB [ 54.047452] vm_area_struct 18744KB 18755KB [ 54.052814] mm_struct 4535KB 4546KB [ 54.058189] fs_cache 426KB 436KB [ 54.063568] files_cache 1598KB 1601KB [ 54.068938] signal_cache 2550KB 2558KB [ 54.074322] sighand_cache 215KB 319KB [ 54.079704] task_struct 10884KB 10884KB [ 54.085093] cred_jar 2360KB 2364KB [ 54.090477] anon_vma_chain 7865KB 7867KB [ 54.095859] anon_vma 134KB 311KB [ 54.101225] pid 222KB 240KB [ 54.106597] Acpi-Operand 106KB 170KB [ 54.111978] Acpi-Namespace 19KB 23KB [ 54.117359] numa_policy 0KB 3KB [ 54.122737] debug_objects_cache 342KB 345KB [ 54.128289] trace_event_file 145KB 147KB [ 54.133672] ftrace_event_field 257KB 259KB [ 54.139141] pool_workqueue 24KB 28KB [ 54.144522] page->ptl 3105KB 3111KB [ 54.149931] kmalloc-262144 1032KB 1032KB [ 54.155297] kmalloc-131072 650KB 650KB [ 54.160668] kmalloc-65536 264KB 264KB [ 54.166054] kmalloc-32768 825KB 825KB [ 54.171438] kmalloc-16384 181KB 181KB [ 54.176819] kmalloc-8192 519KB 519KB [ 54.182184] kmalloc-4096 6744KB 6783KB [ 54.187556] kmalloc-2048 3236KB 3238KB [ 54.192933] kmalloc-1024 3746KB 3748KB [ 54.198335] kmalloc-512 2786KB 2790KB [ 54.203713] kmalloc-256 1933KB 2486KB [ 54.209094] kmalloc-128 406KB 515KB [ 54.214473] kmalloc-96 2065KB 2068KB [ 54.219852] kmalloc-64 2479KB 2480KB [ 54.225217] kmalloc-32 2402KB 2405KB [ 54.230586] kmalloc-192 915KB 916KB [ 54.235963] kmem_cache 101KB 105KB [ 54.241345] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 54.249966] [ 1818] 0 1818 5385 175 86016 0 -1000 udevd [ 54.258136] [ 3505] 0 3505 14298 173 118784 0 0 rsyslogd [ 54.266562] [ 3560] 0 3560 4725 50 81920 0 0 cron [ 54.274640] [ 3566] 0 3566 3736 45 69632 0 0 mcstransd [ 54.283191] [ 3588] 0 3588 12490 152 135168 0 -1000 sshd [ 54.291276] [ 3630] 0 3630 3694 41 77824 0 0 getty [ 54.299445] [ 3631] 0 3631 3694 42 73728 0 0 getty [ 54.307615] [ 3632] 0 3632 3694 41 77824 0 0 getty [ 54.315781] [ 3633] 0 3633 3694 39 77824 0 0 getty [ 54.323951] [ 3634] 0 3634 3694 40 73728 0 0 getty [ 54.332098] [ 3635] 0 3635 3694 39 77824 0 0 getty [ 54.340266] [ 3636] 0 3636 3649 40 73728 0 0 getty [ 54.348439] [ 3638] 0 3638 5681 454 86016 0 -1000 udevd [ 54.356608] [ 3639] 0 3639 5681 454 86016 0 -1000 udevd [ 54.364777] [ 3657] 0 3657 17821 197 184320 0 0 sshd [ 54.372860] [ 3659] 0 3659 280 1 32768 0 0 syzkaller998488 [ 54.381876] [ 3660] 0 3660 4043 0 32768 0 0 syzkaller998488 [ 54.390903] [ 3661] 0 3661 4043 0 32768 0 0 syzkaller998488 [ 54.399955] [ 3662] 0 3662 4043 0 32768 0 0 syzkaller998488 [ 54.408989] [ 3663] 0 3663 4043 0 32768 0 0 syzkaller998488 [ 54.418063] [ 3664] 0 3664 4043 0 32768 0 0 syzkaller998488 [ 54.427098] [ 3665] 0 3665 4043 0 32768 0 0 syzkaller998488 [ 54.436138] [ 3666] 0 3666 4043 0 32768 0 0 syzkaller998488 [ 54.445176] [ 3667] 0 3667 4043 521 36864 0 0 syzkaller998488 [ 54.454208] Out of memory: Kill process 3667 (syzkaller998488) score 0 or sacrifice child [ 54.462557] Killed process 3667 (syzkaller998488) total-vm:16172kB, anon-rss:2084kB, file-rss:0kB, shmem-rss:0kB [ 54.491171] oom_reaper: reaped process 3667 (syzkaller998488), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 54.509926] init invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=0 [ 54.521113] init cpuset=/ mems_allowed=0 [ 54.523560] syzkaller998488: page allocation failure: order:0, mode:0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null) [ 54.523595] syzkaller998488 cpuset=/ mems_allowed=0 [ 54.523682] CPU: 1 PID: 3661 Comm: syzkaller998488 Not tainted 4.15.0-rc8+ #198 [ 54.523686] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.523688] Call Trace: [ 54.523701] dump_stack+0x194/0x257 [ 54.523716] ? arch_local_irq_restore+0x53/0x53 [ 54.523722] ? idr_get_free_cmn+0xfd0/0xfd0 [ 54.523734] ? debug_object_destroy+0x2b0/0x2b0 [ 54.523754] warn_alloc+0x19a/0x2b0 [ 54.523767] ? zone_watermark_ok_safe+0x400/0x400 [ 54.523784] ? __next_timer_interrupt+0x150/0x150 [ 54.523799] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 54.523806] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 54.523830] __alloc_pages_slowpath+0x2546/0x2d00 [ 54.523880] ? warn_alloc+0x2b0/0x2b0 [ 54.523892] ? lock_release+0xa40/0xa40 [ 54.523908] ? print_irqtrace_events+0x270/0x270 [ 54.523934] ? mutex_spin_on_owner+0x446/0xb50 [ 54.523958] ? __lock_acquire+0x664/0x3e00 [ 54.523972] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 54.523980] ? lock_release+0xa40/0xa40 [ 54.524046] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 54.524069] ? __might_sleep+0x95/0x190 [ 54.524085] __alloc_pages_nodemask+0x9fb/0xd80 [ 54.524102] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 54.524123] ? pcpu_chunk_refresh_hint+0x425/0x570 [ 54.524138] ? print_irqtrace_events+0x270/0x270 [ 54.524158] ? __lock_is_held+0xb6/0x140 [ 54.524179] ? find_next_bit+0x27/0x30 [ 54.524195] pcpu_populate_chunk+0x1b3/0x880 [ 54.524222] pcpu_alloc+0x978/0x10e0 [ 54.524248] ? pcpu_free_area+0xa00/0xa00 [ 54.524263] ? vmap_page_range_noflush+0x523/0x720 [ 54.524299] ? map_vm_area+0x9e/0xd0 [ 54.524313] ? __vmalloc_node_range+0x37a/0x650 [ 54.524335] ? array_map_alloc+0x354/0x990 [ 54.524345] ? __vmalloc_node_flags_caller+0x50/0x60 [ 54.524361] __alloc_percpu_gfp+0x27/0x30 [ 54.524373] array_map_alloc+0x794/0x990 [ 54.524390] ? perf_event_fd_array_get_ptr+0x230/0x230 [ 54.524401] SyS_bpf+0x93c/0x4840 [ 54.524408] ? check_noncircular+0x20/0x20 [ 54.524425] ? bpf_prog_get+0x20/0x20 [ 54.524441] ? perf_event_fork+0x30/0x30 [ 54.524462] ? __lock_is_held+0xb6/0x140 [ 54.524470] ? check_noncircular+0x20/0x20 [ 54.524489] ? __handle_mm_fault+0x80e/0x3ce0 [ 54.524509] ? check_noncircular+0x20/0x20 [ 54.524515] ? __pmd_alloc+0x4e0/0x4e0 [ 54.524524] ? vma_link+0xe9/0x170 [ 54.524540] ? find_held_lock+0x35/0x1d0 [ 54.524560] ? handle_mm_fault+0x248/0x8d0 [ 54.524573] ? find_held_lock+0x35/0x1d0 [ 54.524595] ? __do_page_fault+0x5f7/0xc90 [ 54.524605] ? lock_downgrade+0x980/0x980 [ 54.524626] ? handle_mm_fault+0x410/0x8d0 [ 54.524632] ? down_read_trylock+0xdb/0x170 [ 54.524639] ? __do_page_fault+0x32d/0xc90 [ 54.524649] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 54.524654] ? vmacache_find+0x5f/0x280 [ 54.524661] ? vmacache_update+0xfe/0x130 [ 54.524678] ? up_read+0x1a/0x40 [ 54.524687] ? __do_page_fault+0x3d6/0xc90 [ 54.524707] ? mm_fault_error+0x2c0/0x2c0 [ 54.524733] ? do_page_fault+0xee/0x720 [ 54.524741] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 54.524751] ? __do_page_fault+0xc90/0xc90 [ 54.524774] ? SyS_mmap_pgoff+0x243/0x5f0 [ 54.524798] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 54.524817] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 54.524824] RIP: 0033:0x440179 [ 54.524827] RSP: 002b:00007ffc010ae7a8 EFLAGS: 00000217 ORIG_RAX: 0000000000000141 [ 54.524835] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 0000000000440179 [ 54.524839] RDX: 000000000000002c RSI: 00000000203dc000 RDI: 0000000000000000 [ 54.524843] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 54.524847] R10: 00000000ffffffff R11: 0000000000000217 R12: 00000000004016a0 [ 54.524851] R13: 0000000000401730 R14: 0000000000000000 R15: 0000000000000000 [ 54.524969] Mem-Info: [ 54.524984] active_anon:1957 inactive_anon:63 isolated_anon:0 [ 54.524984] active_file:36 inactive_file:0 isolated_file:0 [ 54.524984] unevictable:0 dirty:0 writeback:0 unstable:0 [ 54.524984] slab_reclaimable:7284 slab_unreclaimable:83174 [ 54.524984] mapped:2 shmem:70 pagetables:303 bounce:0 [ 54.524984] free:15894 free_pcp:136 free_cma:0 [ 54.524998] Node 0 active_anon:7828kB inactive_anon:252kB active_file:144kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 2048kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 54.525004] 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 [ 54.525035] lowmem_reserve[]: 0 2870 6381 6381 [ 54.525048] Node 0 DMA32 free:29204kB min:30328kB low:37908kB high:45488kB active_anon:28kB inactive_anon:4kB active_file:4kB inactive_file:4kB unevictable:0kB writepending:0kB present:3129332kB managed:2942312kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:204kB local_pcp:120kB free_cma:0kB [ 54.525064] lowmem_reserve[]: 0 0 3510 3510 [ 54.525076] Node 0 Normal free:18464kB min:37084kB low:46352kB high:55620kB active_anon:7800kB inactive_anon:248kB active_file:140kB inactive_file:0kB unevictable:0kB writepending:0kB present:4718592kB managed:3594624kB mlocked:0kB kernel_stack:3072kB pagetables:1212kB bounce:0kB free_pcp:340kB local_pcp:148kB free_cma:0kB [ 54.525092] lowmem_reserve[]: 0 0 0 0 [ 54.525103] 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 [ 54.525155] Node 0 DMA32: 7*4kB (UM) 3*8kB (M) 6*16kB (UM) 2*32kB (M) 3*64kB (UM) 5*128kB (UM) 4*256kB (M) 3*512kB (M) 3*1024kB (UM) 3*2048kB (UM) 4*4096kB (M) = 29204kB [ 54.525216] Node 0 Normal: 298*4kB (UME) 283*8kB (UM) 172*16kB (M) 113*32kB (M) 49*64kB (ME) 21*128kB (M) 9*256kB (M) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 18464kB [ 54.525272] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 54.525275] 96 total pagecache pages [ 54.525282] 0 pages in swap cache [ 54.525286] Swap cache stats: add 0, delete 0, find 0/0 [ 54.525289] Free swap = 0kB [ 54.525291] Total swap = 0kB [ 54.525295] 1965979 pages RAM [ 54.525297] 0 pages HighMem/MovableOnly [ 54.525300] 327768 pages reserved [ 54.809588] syzkaller998488 (3661) used greatest stack depth: 15280 bytes left [ 55.144104] CPU: 0 PID: 1 Comm: init Not tainted 4.15.0-rc8+ #198 [ 55.150331] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.159684] Call Trace: [ 55.162276] dump_stack+0x194/0x257 [ 55.165912] ? arch_local_irq_restore+0x53/0x53 [ 55.170586] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 55.175785] dump_header+0x28c/0xe1e [ 55.179511] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 55.184710] ? pagefault_out_of_memory+0x152/0x152 [ 55.189643] ? check_noncircular+0x20/0x20 [ 55.193875] ? print_irqtrace_events+0x270/0x270 [ 55.198634] ? __lock_acquire+0x664/0x3e00 [ 55.202867] ? check_noncircular+0x20/0x20 [ 55.207108] ? print_irqtrace_events+0x270/0x270 [ 55.211868] ? check_noncircular+0x20/0x20 [ 55.216090] ? task_will_free_mem+0x252/0xaa0 [ 55.220582] ? print_irqtrace_events+0x270/0x270 [ 55.225326] ? ___ratelimit+0x30d/0x630 [ 55.229274] ? lock_downgrade+0x980/0x980 [ 55.233397] ? lock_release+0xa40/0xa40 [ 55.237348] ? mark_held_locks+0xaf/0x100 [ 55.241469] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 55.246546] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 55.251534] ? trace_hardirqs_on+0xd/0x10 [ 55.255653] ? ___ratelimit+0x95/0x630 [ 55.259513] ? idr_get_free_cmn+0xfd0/0xfd0 [ 55.263807] ? check_noncircular+0x20/0x20 [ 55.268015] ? find_held_lock+0x138/0x1d0 [ 55.272149] oom_kill_process+0x8b5/0x14a0 [ 55.276360] ? has_ns_capability_noaudit+0x163/0x2a0 [ 55.281438] ? check_noncircular+0x20/0x20 [ 55.285647] ? oom_evaluate_task+0x480/0x480 [ 55.290045] ? security_capable_noaudit+0x8b/0xc0 [ 55.294864] ? find_held_lock+0x35/0x1d0 [ 55.298901] ? check_noncircular+0x20/0x20 [ 55.303113] ? oom_unkillable_task+0x394/0x4c0 [ 55.307667] ? lock_downgrade+0x980/0x980 [ 55.311800] ? lock_release+0xa40/0xa40 [ 55.315748] ? do_try_to_free_pages+0xc53/0x1020 [ 55.320480] ? find_lock_task_mm+0x460/0x460 [ 55.324866] ? find_held_lock+0x35/0x1d0 [ 55.328914] ? out_of_memory+0xb3a/0x1220 [ 55.333039] ? lock_downgrade+0x980/0x980 [ 55.337174] ? lock_release+0xa40/0xa40 [ 55.341119] ? lock_acquire+0x1d5/0x580 [ 55.345069] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 55.349979] ? oom_evaluate_task+0x284/0x480 [ 55.354365] out_of_memory+0x86d/0x1220 [ 55.358318] ? oom_killer_disable+0x310/0x310 [ 55.362787] ? mutex_trylock+0x23a/0x2d0 [ 55.366820] ? __lock_is_held+0xb6/0x140 [ 55.370852] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 55.376286] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 55.381109] ? trace_hardirqs_on+0xd/0x10 [ 55.385259] ? warn_alloc+0x2b0/0x2b0 [ 55.389037] ? lock_downgrade+0x980/0x980 [ 55.393166] ? __lock_is_held+0xb6/0x140 [ 55.397211] ? find_get_entry+0x53c/0x9e0 [ 55.401349] ? __lock_acquire+0x664/0x3e00 [ 55.405584] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 55.411448] ? __might_sleep+0x95/0x190 [ 55.415398] __alloc_pages_nodemask+0x9fb/0xd80 [ 55.420049] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 55.425046] ? add_to_page_cache_lru+0x510/0x510 [ 55.429779] ? check_noncircular+0x20/0x20 [ 55.433985] ? check_noncircular+0x20/0x20 [ 55.438195] ? __schedule+0x8f3/0x2060 [ 55.442052] ? lock_downgrade+0x980/0x980 [ 55.446177] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 55.450921] alloc_pages_current+0xb6/0x1e0 [ 55.455224] __page_cache_alloc+0x334/0x500 [ 55.459516] ? rcu_read_lock_held+0xa9/0xc0 [ 55.463813] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 55.471163] filemap_fault+0xefc/0x1c20 [ 55.475115] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 55.480287] ? __lock_page_or_retry+0x4f0/0x4f0 [ 55.484941] ? filemap_map_pages+0x942/0x15d0 [ 55.489428] ? find_get_entries_tag+0xeb0/0xeb0 [ 55.494075] ? __unlock_page_memcg+0x72/0x100 [ 55.498543] ? check_noncircular+0x20/0x20 [ 55.502751] ? page_add_file_rmap+0x5b7/0xa90 [ 55.507222] ? print_irqtrace_events+0x270/0x270 [ 55.511950] ? print_irqtrace_events+0x270/0x270 [ 55.516764] ? print_irqtrace_events+0x270/0x270 [ 55.521505] ? lock_acquire+0x1d5/0x580 [ 55.525449] ? lock_acquire+0x1d5/0x580 [ 55.529402] ? ext4_filemap_fault+0x7a/0xad [ 55.533697] ? __lock_acquire+0x664/0x3e00 [ 55.537907] ? lock_release+0xa40/0xa40 [ 55.541855] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 55.547713] ? rcu_note_context_switch+0x710/0x710 [ 55.552619] ? __might_sleep+0x95/0x190 [ 55.556577] ? down_read+0x96/0x150 [ 55.560175] ? ext4_filemap_fault+0x7a/0xad [ 55.564474] ? __down_interruptible+0x6b0/0x6b0 [ 55.569124] ext4_filemap_fault+0x82/0xad [ 55.573248] __do_fault+0xeb/0x30f [ 55.576762] ? pte_offset_kernel+0xc7/0xc7 [ 55.580980] ? do_raw_spin_trylock+0x190/0x190 [ 55.585548] ? check_noncircular+0x20/0x20 [ 55.589761] __handle_mm_fault+0x1d8f/0x3ce0 [ 55.594147] ? __pmd_alloc+0x4e0/0x4e0 [ 55.598026] ? find_held_lock+0x35/0x1d0 [ 55.602070] ? handle_mm_fault+0x248/0x8d0 [ 55.606277] ? lock_downgrade+0x980/0x980 [ 55.610418] handle_mm_fault+0x334/0x8d0 [ 55.614447] ? down_read_trylock+0xdb/0x170 [ 55.618740] ? __do_page_fault+0x32d/0xc90 [ 55.622947] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 55.627499] ? vmacache_find+0x5f/0x280 [ 55.631447] ? find_vma+0x30/0x150 [ 55.634965] __do_page_fault+0x5c9/0xc90 [ 55.639026] ? mm_fault_error+0x2c0/0x2c0 [ 55.643157] ? find_held_lock+0x35/0x1d0 [ 55.647206] do_page_fault+0xee/0x720 [ 55.650980] ? __do_page_fault+0xc90/0xc90 [ 55.655189] ? lock_release+0xa40/0xa40 [ 55.659134] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 55.664989] ? syscall_return_slowpath+0x550/0x550 [ 55.669893] ? syscall_return_slowpath+0x2ad/0x550 [ 55.674802] ? entry_SYSCALL_64_fastpath+0x55/0xa0 [ 55.679711] ? page_fault+0x36/0x60 [ 55.683308] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 55.688127] ? page_fault+0x36/0x60 [ 55.691734] page_fault+0x4c/0x60 [ 55.695162] RIP: 0033:0x405713 [ 55.698327] RSP: 002b:00007ffde844b5e0 EFLAGS: 00010206 [ 55.703660] RAX: 000000005a627f09 RBX: 00007ffde844b700 RCX: ffffffffff600409 [ 55.710902] RDX: 0000000000000004 RSI: 00007ffde844b510 RDI: 00007ffde844b700 [ 55.718147] RBP: 0000000000000000 R08: 00007ffde844b590 R09: 0000000000000001 [ 55.725388] R10: 0000000000000000 R11: 0000000000000202 R12: 00000000ffffffff [ 55.732630] R13: 00007ffde844b8f0 R14: 0000000000000000 R15: 0000000000000000 [ 55.739965] Mem-Info: [ 55.742188] syzkaller998488: page allocation failure: order:0, mode:0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null) [ 55.742192] syzkaller998488 cpuset=/ mems_allowed=0 [ 55.742208] CPU: 1 PID: 3664 Comm: syzkaller998488 Not tainted 4.15.0-rc8+ #198 [ 55.742212] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.742214] Call Trace: [ 55.742228] dump_stack+0x194/0x257 [ 55.742242] ? arch_local_irq_restore+0x53/0x53 [ 55.742249] ? idr_get_free_cmn+0xfd0/0xfd0 [ 55.742261] ? debug_object_destroy+0x2b0/0x2b0 [ 55.742281] warn_alloc+0x19a/0x2b0 [ 55.742294] ? zone_watermark_ok_safe+0x400/0x400 [ 55.742310] ? __next_timer_interrupt+0x150/0x150 [ 55.742325] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 55.742332] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 55.742355] __alloc_pages_slowpath+0x2546/0x2d00 [ 55.742411] ? warn_alloc+0x2b0/0x2b0 [ 55.742418] ? check_noncircular+0x20/0x20 [ 55.742439] ? print_irqtrace_events+0x270/0x270 [ 55.742455] ? check_noncircular+0x20/0x20 [ 55.742461] ? find_held_lock+0x35/0x1d0 [ 55.742477] ? lock_acquire+0x1d5/0x580 [ 55.742483] ? lock_acquire+0x1d5/0x580 [ 55.742497] ? __lock_acquire+0x664/0x3e00 [ 55.742510] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 55.742518] ? lock_release+0xa40/0xa40 [ 55.742577] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 55.742598] ? __might_sleep+0x95/0x190 [ 55.742612] __alloc_pages_nodemask+0x9fb/0xd80 [ 55.742619] ? lock_release+0xa40/0xa40 [ 55.742635] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 55.742656] ? pcpu_chunk_refresh_hint+0x425/0x570 [ 55.742671] ? print_irqtrace_events+0x270/0x270 [ 55.742691] ? __lock_is_held+0xb6/0x140 [ 55.742712] ? find_next_bit+0x27/0x30 [ 55.742728] pcpu_populate_chunk+0x1b3/0x880 [ 55.742756] pcpu_alloc+0x978/0x10e0 [ 55.742782] ? pcpu_free_area+0xa00/0xa00 [ 55.742789] ? __pte_alloc_kernel+0x1bd/0x2a0 [ 55.742803] ? vmap_page_range_noflush+0x523/0x720 [ 55.742839] ? map_vm_area+0x9e/0xd0 [ 55.742853] ? __vmalloc_node_range+0x37a/0x650 [ 55.742877] ? array_map_alloc+0x354/0x990 [ 55.742886] ? __vmalloc_node_flags_caller+0x50/0x60 [ 55.742902] __alloc_percpu_gfp+0x27/0x30 [ 55.742913] array_map_alloc+0x794/0x990 [ 55.742930] ? perf_event_fd_array_get_ptr+0x230/0x230 [ 55.742942] SyS_bpf+0x93c/0x4840 [ 55.742948] ? check_noncircular+0x20/0x20 [ 55.742965] ? bpf_prog_get+0x20/0x20 [ 55.742980] ? perf_event_fork+0x30/0x30 [ 55.743005] ? __lock_is_held+0xb6/0x140 [ 55.743014] ? check_noncircular+0x20/0x20 [ 55.743032] ? __handle_mm_fault+0x80e/0x3ce0 [ 55.743048] ? check_noncircular+0x20/0x20 [ 55.743054] ? __pmd_alloc+0x4e0/0x4e0 [ 55.743063] ? vma_link+0xe9/0x170 [ 55.743079] ? find_held_lock+0x35/0x1d0 [ 55.743099] ? handle_mm_fault+0x248/0x8d0 [ 55.743113] ? find_held_lock+0x35/0x1d0 [ 55.743134] ? __do_page_fault+0x5f7/0xc90 [ 55.743144] ? lock_downgrade+0x980/0x980 [ 55.743166] ? handle_mm_fault+0x410/0x8d0 [ 55.743172] ? down_read_trylock+0xdb/0x170 [ 55.743178] ? __do_page_fault+0x32d/0xc90 [ 55.743188] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 55.743193] ? vmacache_find+0x5f/0x280 [ 55.743200] ? vmacache_update+0xfe/0x130 [ 55.743217] ? up_read+0x1a/0x40 [ 55.743226] ? __do_page_fault+0x3d6/0xc90 [ 55.743247] ? mm_fault_error+0x2c0/0x2c0 [ 55.743272] ? do_page_fault+0xee/0x720 [ 55.743284] ? __do_page_fault+0xc90/0xc90 [ 55.743307] ? SyS_mmap_pgoff+0x243/0x5f0 [ 55.743332] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 55.743352] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 55.743358] RIP: 0033:0x440179 [ 55.743362] RSP: 002b:00007ffc010ae7a8 EFLAGS: 00000217 ORIG_RAX: 0000000000000141 [ 55.743369] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 0000000000440179 [ 55.743373] RDX: 000000000000002c RSI: 00000000203dc000 RDI: 0000000000000000 [ 55.743377] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 55.743381] R10: 00000000ffffffff R11: 0000000000000217 R12: 00000000004016a0 [ 55.743385] R13: 0000000000401730 R14: 0000000000000000 R15: 0000000000000000 [ 55.743463] Mem-Info: [ 55.743479] active_anon:1956 inactive_anon:63 isolated_anon:0 [ 55.743479] active_file:33 inactive_file:0 isolated_file:0 [ 55.743479] unevictable:0 dirty:0 writeback:0 unstable:0 [ 55.743479] slab_reclaimable:7284 slab_unreclaimable:83151 [ 55.743479] mapped:2 shmem:70 pagetables:302 bounce:0 [ 55.743479] free:15895 free_pcp:131 free_cma:0 [ 55.743493] Node 0 active_anon:7824kB inactive_anon:252kB active_file:132kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 55.743495] 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 [ 55.743511] lowmem_reserve[]: 0 2870 6381 6381 [ 55.743524] Node 0 DMA32 free:29204kB min:30328kB low:37908kB high:45488kB active_anon:28kB inactive_anon:4kB active_file:20kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2942312kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:212kB local_pcp:128kB free_cma:0kB [ 55.743540] lowmem_reserve[]: 0 0 3510 3510 [ 55.743552] Node 0 Normal free:18468kB min:37084kB low:46352kB high:55620kB active_anon:7796kB inactive_anon:248kB active_file:112kB inactive_file:0kB unevictable:0kB writepending:0kB present:4718592kB managed:3594624kB mlocked:0kB kernel_stack:3040kB pagetables:1208kB bounce:0kB free_pcp:312kB local_pcp:120kB free_cma:0kB [ 55.743568] lowmem_reserve[]: 0 0 0 0 [ 55.743580] 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 [ 55.743633] Node 0 DMA32: 7*4kB (UM) 3*8kB (M) 6*16kB (UM) 2*32kB (M) 3*64kB (UM) 5*128kB (UM) 4*256kB (M) 3*512kB (M) 3*1024kB (UM) 3*2048kB (UM) 4*4096kB (M) = 29204kB [ 55.743690] Node 0 Normal: 301*4kB (UME) 284*8kB (M) 173*16kB (UM) 114*32kB (UM) 50*64kB (UME) 22*128kB (UM) 10*256kB (UM) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 18468kB [ 55.743744] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 55.743747] 96 total pagecache pages [ 55.743754] 0 pages in swap cache [ 55.743759] Swap cache stats: add 0, delete 0, find 0/0 [ 55.743761] Free swap = 0kB [ 55.743764] Total swap = 0kB [ 55.743766] 1965979 pages RAM [ 55.743769] 0 pages HighMem/MovableOnly [ 55.743772] 327768 pages reserved [ 56.417534] syzkaller998488: page allocation failure: order:0, mode:0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null) [ 56.417539] syzkaller998488 cpuset=/ mems_allowed=0 [ 56.417556] CPU: 1 PID: 3663 Comm: syzkaller998488 Not tainted 4.15.0-rc8+ #198 [ 56.417560] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.417562] Call Trace: [ 56.417577] dump_stack+0x194/0x257 [ 56.417591] ? arch_local_irq_restore+0x53/0x53 [ 56.417598] ? idr_get_free_cmn+0xfd0/0xfd0 [ 56.417609] ? debug_object_destroy+0x2b0/0x2b0 [ 56.417630] warn_alloc+0x19a/0x2b0 [ 56.417643] ? zone_watermark_ok_safe+0x400/0x400 [ 56.417659] ? __next_timer_interrupt+0x150/0x150 [ 56.417674] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 56.417681] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 56.417705] __alloc_pages_slowpath+0x2546/0x2d00 [ 56.417755] ? warn_alloc+0x2b0/0x2b0 [ 56.417761] ? check_noncircular+0x20/0x20 [ 56.417782] ? print_irqtrace_events+0x270/0x270 [ 56.417800] ? check_noncircular+0x20/0x20 [ 56.417806] ? find_held_lock+0x35/0x1d0 [ 56.417824] ? lock_acquire+0x1d5/0x580 [ 56.417831] ? lock_acquire+0x1d5/0x580 [ 56.417846] ? __lock_acquire+0x664/0x3e00 [ 56.417860] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 56.417869] ? lock_release+0xa40/0xa40 [ 56.417932] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 56.417954] ? __might_sleep+0x95/0x190 [ 56.417970] __alloc_pages_nodemask+0x9fb/0xd80 [ 56.417977] ? lock_release+0xa40/0xa40 [ 56.417992] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 56.418016] ? pcpu_chunk_refresh_hint+0x425/0x570 [ 56.418031] ? print_irqtrace_events+0x270/0x270 [ 56.418051] ? __lock_is_held+0xb6/0x140 [ 56.418071] ? find_next_bit+0x27/0x30 [ 56.418088] pcpu_populate_chunk+0x1b3/0x880 [ 56.418115] pcpu_alloc+0x978/0x10e0 [ 56.418142] ? pcpu_free_area+0xa00/0xa00 [ 56.418149] ? __pte_alloc_kernel+0x1bd/0x2a0 [ 56.418162] ? vmap_page_range_noflush+0x523/0x720 [ 56.418193] ? retint_kernel+0x10/0x10 [ 56.418204] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 56.418215] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 56.418234] ? retint_kernel+0x10/0x10 [ 56.418261] __alloc_percpu_gfp+0x27/0x30 [ 56.418273] array_map_alloc+0x794/0x990 [ 56.418290] ? perf_event_fd_array_get_ptr+0x230/0x230 [ 56.418302] SyS_bpf+0x93c/0x4840 [ 56.418308] ? check_noncircular+0x20/0x20 [ 56.418325] ? bpf_prog_get+0x20/0x20 [ 56.418341] ? perf_event_fork+0x30/0x30 [ 56.418366] ? __lock_is_held+0xb6/0x140 [ 56.418375] ? check_noncircular+0x20/0x20 [ 56.418392] ? __handle_mm_fault+0x80e/0x3ce0 [ 56.418409] ? check_noncircular+0x20/0x20 [ 56.418415] ? __pmd_alloc+0x4e0/0x4e0 [ 56.418424] ? vma_link+0xe9/0x170 [ 56.418440] ? find_held_lock+0x35/0x1d0 [ 56.418460] ? handle_mm_fault+0x248/0x8d0 [ 56.418473] ? find_held_lock+0x35/0x1d0 [ 56.418495] ? __do_page_fault+0x5f7/0xc90 [ 56.418505] ? lock_downgrade+0x980/0x980 [ 56.418526] ? handle_mm_fault+0x410/0x8d0 [ 56.418532] ? down_read_trylock+0xdb/0x170 [ 56.418539] ? __do_page_fault+0x32d/0xc90 [ 56.418549] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 56.418554] ? vmacache_find+0x5f/0x280 [ 56.418561] ? vmacache_update+0xfe/0x130 [ 56.418578] ? up_read+0x1a/0x40 [ 56.418587] ? __do_page_fault+0x3d6/0xc90 [ 56.418607] ? mm_fault_error+0x2c0/0x2c0 [ 56.418633] ? do_page_fault+0xee/0x720 [ 56.418641] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 56.418650] ? __do_page_fault+0xc90/0xc90 [ 56.418673] ? SyS_mmap_pgoff+0x243/0x5f0 [ 56.418697] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 56.418717] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 56.418723] RIP: 0033:0x440179 [ 56.418726] RSP: 002b:00007ffc010ae7a8 EFLAGS: 00000217 ORIG_RAX: 0000000000000141 [ 56.418734] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 0000000000440179 [ 56.418738] RDX: 000000000000002c RSI: 00000000203dc000 RDI: 0000000000000000 [ 56.418742] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 56.418747] R10: 00000000ffffffff R11: 0000000000000217 R12: 00000000004016a0 [ 56.418750] R13: 0000000000401730 R14: 0000000000000000 R15: 0000000000000000 [ 57.867221] active_anon:2328 inactive_anon:63 isolated_anon:0 [ 57.867221] active_file:24 inactive_file:24 isolated_file:0 [ 57.867221] unevictable:0 dirty:17 writeback:0 unstable:0 [ 57.867221] slab_reclaimable:7329 slab_unreclaimable:82998 [ 57.867221] mapped:2 shmem:70 pagetables:291 bounce:0 [ 57.867221] free:15828 free_pcp:31 free_cma:0 [ 57.899546] Node 0 active_anon:9312kB inactive_anon:252kB active_file:96kB inactive_file:96kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:68kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 57.926121] 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 [ 57.952258] lowmem_reserve[]: 0 2870 6381 6381 [ 57.956868] Node 0 DMA32 free:29104kB min:30328kB low:37908kB high:45488kB active_anon:28kB inactive_anon:4kB active_file:60kB inactive_file:56kB unevictable:0kB writepending:68kB present:3129332kB managed:2942312kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:120kB local_pcp:0kB free_cma:0kB [ 57.984571] lowmem_reserve[]: 0 0 3510 3510 [ 57.988938] Node 0 Normal free:18300kB min:37084kB low:46352kB high:55620kB active_anon:9284kB inactive_anon:248kB active_file:44kB inactive_file:32kB unevictable:0kB writepending:0kB present:4718592kB managed:3594624kB mlocked:0kB kernel_stack:2976kB pagetables:1164kB bounce:0kB free_pcp:4kB local_pcp:4kB free_cma:0kB [ 58.017330] lowmem_reserve[]: 0 0 0 0 [ 58.021166] 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 [ 58.034813] Node 0 DMA32: 20*4kB (ME) 12*8kB (ME) 12*16kB (UME) 10*32kB (ME) 10*64kB (UME) 5*128kB (M) 4*256kB (UME) 3*512kB (ME) 4*1024kB (UME) 4*2048kB (UME) 3*4096kB (M) = 29104kB [ 58.051341] Node 0 Normal: 307*4kB (UME) 94*8kB (UM) 175*16kB (UME) 113*32kB (ME) 51*64kB (UME) 22*128kB (ME) 11*256kB (UME) 2*512kB (UE) 0*1024kB 0*2048kB 0*4096kB = 18316kB [ 58.067158] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 58.075735] 118 total pagecache pages [ 58.079529] 0 pages in swap cache [ 58.082970] Swap cache stats: add 0, delete 0, find 0/0 [ 58.088322] Free swap = 0kB [ 58.091326] Total swap = 0kB [ 58.094330] 1965979 pages RAM [ 58.097423] 0 pages HighMem/MovableOnly [ 58.101381] 327768 pages reserved [ 58.104820] Unreclaimable slab info: [ 58.108521] Name Used Total [ 58.114052] hashtab_node 118KB 119KB [ 58.119409] ebitmap_node 382KB 385KB [ 58.124765] avtab_node 1012KB 1013KB [ 58.130121] TIPC 1KB 7KB [ 58.135477] SCTPv6 2KB 4KB [ 58.140833] DCCPv6 2KB 7KB [ 58.146196] DCCP 2KB 6KB [ 58.151562] fib6_nodes 0KB 4KB [ 58.156916] ip6_dst_cache 5KB 11KB [ 58.162275] RAWv6 9KB 13KB [ 58.167653] UDPv6 12KB 14KB [ 58.173035] TCPv6 2KB 5KB [ 58.178431] sd_ext_cdb 0KB 3KB [ 58.183793] scsi_sense_cache 113KB 140KB [ 58.189149] virtio_scsi_cmd 16KB 16KB [ 58.194521] sgpool-128 8KB 8KB [ 58.199898] sgpool-64 4KB 6KB [ 58.205258] sgpool-32 118KB 118KB [ 58.210626] sgpool-16 45KB 45KB [ 58.216031] sgpool-8 221KB 221KB [ 58.221409] cfq_io_cq 18KB 19KB [ 58.226773] cfq_queue 29KB 30KB [ 58.232142] mqueue_inode_cache 1KB 7KB [ 58.237611] nfs_commit_data 3KB 7KB [ 58.242972] nfs_write_data 34KB 37KB [ 58.248351] jbd2_inode 1KB 3KB [ 58.253725] ext4_system_zone 0KB 3KB [ 58.259107] bio-1 1KB 3KB [ 58.264476] rpc_buffers 17KB 19KB [ 58.269845] rpc_tasks 2KB 3KB [ 58.275216] UNIX 773KB 773KB [ 58.280603] tcp_bind_bucket 0KB 4KB [ 58.285969] ip_fib_trie 0KB 3KB [ 58.291338] ip_fib_alias 0KB 3KB [ 58.296703] ip_dst_cache 3KB 8KB [ 58.302073] RAW 5KB 7KB [ 58.307435] UDP 29KB 39KB [ 58.312809] TCP 7KB 7KB [ 58.318172] hugetlbfs_inode_cache 1KB 7KB [ 58.323875] eventpoll_pwq 10KB 11KB [ 58.329245] eventpoll_epi 19KB 23KB [ 58.334606] inotify_inode_mark 3KB 7KB [ 58.340063] request_queue 31KB 45KB [ 58.345444] blkdev_ioc 27KB 27KB [ 58.350805] bio-0 371KB 371KB [ 58.356174] biovec-(1<<(21-12)) 668KB 668KB [ 58.361730] biovec-64 181KB 181KB [ 58.367094] biovec-16 22KB 22KB [ 58.372467] bio_integrity_payload 0KB 4KB [ 58.378197] khugepaged_mm_slot 0KB 3KB [ 58.383659] uid_cache 0KB 3KB [ 58.389041] dmaengine-unmap-2 0KB 3KB [ 58.394432] audit_buffer 0KB 3KB [ 58.399798] skbuff_fclone_cache 143KB 146KB [ 58.405340] skbuff_head_cache 2017KB 2017KB [ 58.410709] configfs_dir_cache 0KB 4KB [ 58.416169] file_lock_cache 164KB 166KB [ 58.421529] file_lock_ctx 1KB 3KB [ 58.426900] fsnotify_mark_connector 2KB 3KB [ 58.432784] shmem_inode_cache 1055KB 1058KB [ 58.438153] task_delay_info 319KB 343KB [ 58.443533] sigqueue 366KB 370KB [ 58.448897] kernfs_node_cache 2290KB 2291KB [ 58.454265] mnt_cache 15KB 20KB [ 58.459638] filp 8297KB 8805KB [ 58.464995] names_cache 110410KB 110449KB [ 58.470378] avc_node 37KB 43KB [ 58.475742] selinux_file_security 416KB 492KB [ 58.481445] selinux_inode_security 1952KB 1956KB [ 58.487247] key_jar 3KB 7KB [ 58.492622] nsproxy 0KB 3KB [ 58.498005] vm_area_struct 18747KB 18755KB [ 58.503403] mm_struct 4534KB 4546KB [ 58.508770] fs_cache 426KB 436KB [ 58.514138] files_cache 1598KB 1601KB [ 58.519519] signal_cache 2548KB 2558KB [ 58.524897] sighand_cache 215KB 319KB [ 58.530258] task_struct 10884KB 10884KB [ 58.535629] cred_jar 2359KB 2364KB [ 58.541008] anon_vma_chain 7866KB 7867KB [ 58.546404] anon_vma 123KB 311KB [ 58.551766] pid 222KB 240KB [ 58.557140] Acpi-Operand 106KB 170KB [ 58.562518] Acpi-Namespace 19KB 23KB [ 58.567894] numa_policy 0KB 3KB [ 58.573273] debug_objects_cache 342KB 345KB [ 58.578812] trace_event_file 145KB 147KB [ 58.584184] ftrace_event_field 257KB 259KB [ 58.589648] pool_workqueue 24KB 28KB [ 58.595048] page->ptl 3106KB 3111KB [ 58.600452] kmalloc-262144 1032KB 1032KB [ 58.605815] kmalloc-131072 650KB 650KB [ 58.611186] kmalloc-65536 264KB 264KB [ 58.616564] kmalloc-32768 825KB 825KB [ 58.621943] kmalloc-16384 181KB 181KB [ 58.627307] kmalloc-8192 519KB 519KB [ 58.632680] kmalloc-4096 6451KB 6489KB [ 58.638071] kmalloc-2048 3236KB 3238KB [ 58.643431] kmalloc-1024 4024KB 4024KB [ 58.648799] kmalloc-512 2790KB 2790KB [ 58.654179] kmalloc-256 1918KB 2471KB [ 58.659539] kmalloc-128 406KB 515KB [ 58.664911] kmalloc-96 2112KB 2112KB [ 58.670286] kmalloc-64 2504KB 2504KB [ 58.675645] kmalloc-32 2400KB 2405KB [ 58.681039] kmalloc-192 928KB 928KB [ 58.686417] kmem_cache 101KB 105KB [ 58.691793] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 58.700408] [ 1818] 0 1818 5385 175 86016 0 -1000 udevd [ 58.708559] [ 3505] 0 3505 30682 516 122880 0 0 rsyslogd [ 58.716978] [ 3560] 0 3560 4725 50 81920 0 0 cron [ 58.725097] [ 3566] 0 3566 3736 45 69632 0 0 mcstransd [ 58.733611] [ 3588] 0 3588 12490 152 135168 0 -1000 sshd [ 58.741701] [ 3630] 0 3630 3694 41 77824 0 0 getty [ 58.749855] [ 3631] 0 3631 3694 42 73728 0 0 getty [ 58.758052] [ 3632] 0 3632 3694 41 77824 0 0 getty [ 58.766211] [ 3633] 0 3633 3694 39 77824 0 0 getty [ 58.774355] [ 3634] 0 3634 3694 40 73728 0 0 getty [ 58.782511] [ 3635] 0 3635 3694 39 77824 0 0 getty [ 58.790677] [ 3636] 0 3636 3649 40 73728 0 0 getty [ 58.798826] [ 3638] 0 3638 5681 454 86016 0 -1000 udevd [ 58.806965] [ 3639] 0 3639 5681 454 86016 0 -1000 udevd [ 58.815125] [ 3657] 0 3657 17821 197 184320 0 0 sshd [ 58.823225] [ 3659] 0 3659 280 1 32768 0 0 syzkaller998488 [ 58.832239] [ 3660] 0 3660 4043 0 32768 0 0 syzkaller998488 [ 58.841263] [ 3662] 0 3662 4043 0 32768 0 0 syzkaller998488 [ 58.850302] [ 3665] 0 3665 4043 0 32768 0 0 syzkaller998488 [ 58.860111] [ 3666] 0 3666 4043 0 32768 0 0 syzkaller998488 [ 58.869145] [ 3667] 0 3667 4043 0 32768 0 0 syzkaller998488 [ 58.878175] Out of memory: Kill process 3657 (sshd) score 0 or sacrifice child [ 58.885739] Killed process 3659 (syzkaller998488) total-vm:1120kB, anon-rss:4kB, file-rss:0kB, shmem-rss:0kB [ 58.897947] kworker/u4:2 invoked oom-killer: gfp_mask=0x14040d0(GFP_KERNEL|__GFP_COMP|__GFP_RECLAIMABLE), nodemask=(null), order=0, oom_score_adj=0 [ 58.912163] kworker/u4:2 cpuset=/ mems_allowed=0 [ 58.917122] CPU: 1 PID: 35 Comm: kworker/u4:2 Not tainted 4.15.0-rc8+ #198 [ 58.924115] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.933454] Workqueue: writeback wb_workfn (flush-8:0) [ 58.938703] Call Trace: [ 58.941263] dump_stack+0x194/0x257 [ 58.944862] ? arch_local_irq_restore+0x53/0x53 [ 58.949508] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 58.954674] dump_header+0x28c/0xe1e [ 58.958365] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 58.963533] ? pagefault_out_of_memory+0x152/0x152 [ 58.968435] ? print_irqtrace_events+0x270/0x270 [ 58.973171] ? __lock_acquire+0x664/0x3e00 [ 58.977380] ? check_noncircular+0x20/0x20 [ 58.981590] ? print_irqtrace_events+0x270/0x270 [ 58.986313] ? find_held_lock+0x35/0x1d0 [ 58.990349] ? check_noncircular+0x20/0x20 [ 58.994554] ? task_will_free_mem+0x252/0xaa0 [ 58.999032] ? print_irqtrace_events+0x270/0x270 [ 59.003763] ? ___ratelimit+0x30d/0x630 [ 59.007706] ? lock_downgrade+0x980/0x980 [ 59.011827] ? lock_release+0xa40/0xa40 [ 59.015775] ? mark_held_locks+0xaf/0x100 [ 59.019896] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 59.024972] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 59.029959] ? trace_hardirqs_on+0xd/0x10 [ 59.034077] ? ___ratelimit+0x95/0x630 [ 59.037937] ? idr_get_free_cmn+0xfd0/0xfd0 [ 59.042227] ? check_noncircular+0x20/0x20 [ 59.046429] ? find_held_lock+0x138/0x1d0 [ 59.050557] oom_kill_process+0x8b5/0x14a0 [ 59.054764] ? has_ns_capability_noaudit+0x163/0x2a0 [ 59.059838] ? check_noncircular+0x20/0x20 [ 59.064045] ? oom_evaluate_task+0x480/0x480 [ 59.068434] ? security_capable_noaudit+0x8b/0xc0 [ 59.073250] ? find_held_lock+0x35/0x1d0 [ 59.077283] ? check_noncircular+0x20/0x20 [ 59.081488] ? oom_unkillable_task+0x394/0x4c0 [ 59.086043] ? lock_downgrade+0x980/0x980 [ 59.090163] ? lock_release+0xa40/0xa40 [ 59.094106] ? do_try_to_free_pages+0xc53/0x1020 [ 59.098837] ? find_lock_task_mm+0x460/0x460 [ 59.103220] ? find_held_lock+0x35/0x1d0 [ 59.107257] ? out_of_memory+0xb3a/0x1220 [ 59.111378] ? lock_downgrade+0x980/0x980 [ 59.115497] ? lock_release+0xa40/0xa40 [ 59.119442] ? blocking_notifier_call_chain+0x112/0x190 [ 59.124776] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 59.129679] ? oom_evaluate_task+0x284/0x480 [ 59.134060] out_of_memory+0x86d/0x1220 [ 59.138023] ? oom_killer_disable+0x310/0x310 [ 59.142489] ? mutex_trylock+0x23a/0x2d0 [ 59.146520] ? __lock_is_held+0xb6/0x140 [ 59.150552] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 59.155981] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 59.160819] ? warn_alloc+0x2b0/0x2b0 [ 59.164596] ? warn_alloc+0x2b0/0x2b0 [ 59.168365] ? ret_from_fork+0x37/0x50 [ 59.172226] ? print_irqtrace_events+0x270/0x270 [ 59.176953] ? warn_alloc+0x2b0/0x2b0 [ 59.180724] ? print_irqtrace_events+0x270/0x270 [ 59.185451] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 59.190618] ? unwind_next_frame.part.6+0x1a6/0xb40 [ 59.195603] ? unwind_dump+0x4d0/0x4d0 [ 59.199473] ? __lock_acquire+0x664/0x3e00 [ 59.203696] ? __lock_is_held+0xb6/0x140 [ 59.207741] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 59.213591] ? __lock_acquire+0x664/0x3e00 [ 59.217796] ? wb_writeback+0x8d3/0xdb0 [ 59.221745] ? __might_sleep+0x95/0x190 [ 59.225693] __alloc_pages_nodemask+0x9fb/0xd80 [ 59.230341] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 59.235326] ? __alloc_pages_nodemask+0xadb/0xd80 [ 59.240139] ? print_irqtrace_events+0x270/0x270 [ 59.244869] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 59.249856] ? save_stack+0xa3/0xd0 [ 59.253469] ? cache_grow_begin+0x307/0x3f0 [ 59.257769] cache_grow_begin+0x72/0x3f0 [ 59.261805] fallback_alloc+0x13b/0x2a0 [ 59.265755] ____cache_alloc_node+0x1cc/0x1e0 [ 59.270224] kmem_cache_alloc+0x287/0x760 [ 59.274344] ? lock_acquire+0x1d5/0x580 [ 59.278287] ? blk_start_plug+0xbb/0x370 [ 59.282324] ext4_init_io_end+0x8e/0x200 [ 59.286358] ? ext4_end_io_rsv_work+0x9e0/0x9e0 [ 59.290997] ? __lock_is_held+0xb6/0x140 [ 59.295041] ? radix_tree_tagged+0x12/0x60 [ 59.299251] ext4_writepages+0x1229/0x3c30 [ 59.303464] ? __lock_acquire+0x664/0x3e00 [ 59.307683] ? ext4_mark_inode_dirty+0xa10/0xa10 [ 59.312409] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 59.317487] ? print_irqtrace_events+0x270/0x270 [ 59.322211] ? trace_hardirqs_on+0xd/0x10 [ 59.326337] ? virtscsi_queuecommand+0x4e4/0xe20 [ 59.331061] ? print_irqtrace_events+0x270/0x270 [ 59.335791] ? __lock_acquire+0x664/0x3e00 [ 59.339998] ? print_irqtrace_events+0x270/0x270 [ 59.344728] ? check_noncircular+0x20/0x20 [ 59.348939] ? __lock_acquire+0x664/0x3e00 [ 59.353144] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 59.358309] ? _raw_spin_unlock_irq+0x27/0x70 [ 59.362786] ? check_noncircular+0x20/0x20 [ 59.366988] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 59.372167] ? pvclock_read_flags+0x160/0x160 [ 59.376633] ? __lock_is_held+0xb6/0x140 [ 59.380666] ? ext4_mark_inode_dirty+0xa10/0xa10 [ 59.385394] do_writepages+0xff/0x170 [ 59.389163] ? do_writepages+0xff/0x170 [ 59.393118] __writeback_single_inode+0x1b4/0x1250 [ 59.398023] ? check_noncircular+0x20/0x20 [ 59.402235] ? __mark_inode_dirty+0x1170/0x1170 [ 59.406874] ? find_held_lock+0x35/0x1d0 [ 59.410908] ? check_noncircular+0x20/0x20 [ 59.415111] ? lock_acquire+0x1d5/0x580 [ 59.419058] ? find_held_lock+0x35/0x1d0 [ 59.423098] ? wbc_attach_and_unlock_inode+0x574/0x8f0 [ 59.428345] ? lock_downgrade+0x980/0x980 [ 59.432465] ? find_held_lock+0x138/0x1d0 [ 59.436588] ? do_raw_spin_trylock+0x190/0x190 [ 59.441140] ? __lock_is_held+0xb6/0x140 [ 59.445180] ? _raw_spin_unlock+0x22/0x30 [ 59.449299] ? wbc_attach_and_unlock_inode+0x1ad/0x8f0 [ 59.454547] ? __writeback_single_inode+0x1250/0x1250 [ 59.459717] writeback_sb_inodes+0x688/0xff0 [ 59.464113] ? wbc_detach_inode+0x870/0x870 [ 59.468406] ? lock_release+0xa40/0xa40 [ 59.472356] ? __lock_is_held+0xb6/0x140 [ 59.476394] ? down_read_trylock+0xdb/0x170 [ 59.480683] ? trylock_super+0x20/0x100 [ 59.484643] __writeback_inodes_wb+0x19b/0x2f0 [ 59.489202] ? writeback_sb_inodes+0xff0/0xff0 [ 59.493754] ? __lock_is_held+0xb6/0x140 [ 59.497798] wb_writeback+0x8d3/0xdb0 [ 59.501580] ? check_noncircular+0x20/0x20 [ 59.505787] ? writeback_inodes_wb.constprop.60+0x340/0x340 [ 59.511463] ? lock_pin_lock+0x360/0x360 [ 59.515501] ? __update_load_avg_se.isra.27+0x56a/0x7c0 [ 59.520835] ? __update_load_avg_se.isra.27+0x56a/0x7c0 [ 59.526170] ? check_noncircular+0x20/0x20 [ 59.530376] ? update_load_avg+0x249/0x2d80 [ 59.534670] ? widen_string+0xa1/0x1e0 [ 59.538524] ? __lock_is_held+0xb6/0x140 [ 59.542559] ? string+0x180/0x200 [ 59.545985] ? _find_next_bit+0xee/0x120 [ 59.550030] ? _find_next_bit+0xee/0x120 [ 59.554071] ? find_next_bit+0x27/0x30 [ 59.557936] ? cpumask_next+0x24/0x30 [ 59.561707] ? get_nr_dirty_inodes+0xc0/0x120 [ 59.566170] ? lock_downgrade+0x980/0x980 [ 59.570293] ? get_nr_dirty_pages+0x14a/0x1d0 [ 59.574760] ? inode_sleep_on_writeback+0x220/0x220 [ 59.579748] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 59.584734] ? wb_workfn+0x61c/0x16b0 [ 59.588503] ? trace_hardirqs_on+0xd/0x10 [ 59.592626] wb_workfn+0xc7b/0x16b0 [ 59.596221] ? wb_workfn+0xc7b/0x16b0 [ 59.600007] ? inode_wait_for_writeback+0x40/0x40 [ 59.604823] ? __lock_acquire+0x664/0x3e00 [ 59.609042] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 59.614211] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 59.619372] ? destroy_rcu_head_on_stack+0x9/0x10 [ 59.624184] ? __synchronize_srcu+0x1b5/0x260 [ 59.628653] ? check_noncircular+0x20/0x20 [ 59.632862] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 59.638036] ? __lock_is_held+0xb6/0x140 [ 59.642073] ? check_noncircular+0x20/0x20 [ 59.646281] ? find_held_lock+0x35/0x1d0 [ 59.650319] ? debug_object_deactivate+0x364/0x560 [ 59.655220] ? lock_downgrade+0x980/0x980 [ 59.659342] ? lock_release+0xa40/0xa40 [ 59.663287] ? check_noncircular+0x20/0x20 [ 59.667498] ? lock_acquire+0x1d5/0x580 [ 59.671441] ? lock_acquire+0x1d5/0x580 [ 59.675386] ? process_one_work+0xb01/0x1b10 [ 59.679773] ? __lock_is_held+0xb6/0x140 [ 59.683815] process_one_work+0xbbf/0x1b10 [ 59.688025] ? trace_hardirqs_on+0xd/0x10 [ 59.692633] ? pwq_dec_nr_in_flight+0x450/0x450 [ 59.697282] ? __schedule+0x8f3/0x2060 [ 59.701149] ? check_noncircular+0x20/0x20 [ 59.705353] ? __lock_is_held+0xb6/0x140 [ 59.709409] ? lock_acquire+0x1d5/0x580 [ 59.713351] ? lock_acquire+0x1d5/0x580 [ 59.717295] ? worker_thread+0x4a3/0x1990 [ 59.721412] ? lock_downgrade+0x980/0x980 [ 59.725535] ? lock_release+0xa40/0xa40 [ 59.729480] ? worker_pool_assign_id+0x1b0/0x1b0 [ 59.734206] ? do_raw_spin_trylock+0x190/0x190 [ 59.738768] worker_thread+0x223/0x1990 [ 59.742714] ? lock_downgrade+0x980/0x980 [ 59.746848] ? process_one_work+0x1b10/0x1b10 [ 59.751313] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 59.756299] ? account_kernel_stack+0x155/0x1f0 [ 59.760942] ? put_task_stack+0x116/0x270 [ 59.765068] ? finish_task_switch+0x4cc/0x740 [ 59.769536] ? copy_overflow+0x20/0x20 [ 59.773401] ? __schedule+0x8f3/0x2060 [ 59.777271] ? find_held_lock+0x35/0x1d0 [ 59.781308] ? find_held_lock+0x35/0x1d0 [ 59.785344] ? find_held_lock+0x35/0x1d0 [ 59.789383] ? complete+0x62/0x80 [ 59.792815] ? __schedule+0x2060/0x2060 [ 59.796759] ? do_wait_intr_irq+0x3e0/0x3e0 [ 59.801048] ? __lockdep_init_map+0xe4/0x650 [ 59.805431] ? do_raw_spin_trylock+0x190/0x190 [ 59.809984] ? lockdep_init_map+0x9/0x10 [ 59.814024] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 59.819102] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 59.824089] ? trace_hardirqs_on+0xd/0x10 [ 59.828208] ? __kthread_parkme+0x175/0x240 [ 59.832503] kthread+0x33c/0x400 [ 59.835848] ? process_one_work+0x1b10/0x1b10 [ 59.840310] ? kthread_stop+0x7a0/0x7a0 [ 59.844255] ret_from_fork+0x37/0x50 [ 59.848138] Mem-Info: [ 59.853925] active_anon:2319 inactive_anon:63 isolated_anon:0 [ 59.853925] active_file:24 inactive_file:24 isolated_file:0 [ 59.853925] unevictable:0 dirty:17 writeback:0 unstable:0 [ 59.853925] slab_reclaimable:7329 slab_unreclaimable:82993 [ 59.853925] mapped:2 shmem:70 pagetables:287 bounce:0 [ 59.853925] free:15890 free_pcp:0 free_cma:0 [ 59.886096] Node 0 active_anon:9276kB inactive_anon:252kB active_file:88kB inactive_file:104kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:68kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 59.912732] 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 [ 59.938866] lowmem_reserve[]: 0 2870 6381 6381 [ 59.943458] Node 0 DMA32 free:29224kB min:30328kB low:37908kB high:45488kB active_anon:28kB inactive_anon:4kB active_file:72kB inactive_file:44kB unevictable:0kB writepending:68kB present:3129332kB managed:2942312kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 59.971534] lowmem_reserve[]: 0 0 3510 3510 [ 59.976770] Node 0 Normal free:18516kB min:37084kB low:46352kB high:55620kB active_anon:9248kB inactive_anon:248kB active_file:64kB inactive_file:12kB unevictable:0kB writepending:0kB present:4718592kB managed:3594624kB mlocked:0kB kernel_stack:2944kB pagetables:1148kB bounce:0kB free_pcp:4kB local_pcp:4kB free_cma:0kB [ 60.005189] lowmem_reserve[]: 0 0 0 0 [ 60.009044] 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 [ 60.011341] syzkaller998488: page allocation failure: order:0, mode:0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null) [ 60.011345] syzkaller998488 cpuset=/ mems_allowed=0 [ 60.011362] CPU: 1 PID: 3662 Comm: syzkaller998488 Not tainted 4.15.0-rc8+ #198 [ 60.011366] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.011370] Call Trace: [ 60.011386] dump_stack+0x194/0x257 [ 60.011401] ? arch_local_irq_restore+0x53/0x53 [ 60.011408] ? idr_get_free_cmn+0xfd0/0xfd0 [ 60.011420] ? debug_object_destroy+0x2b0/0x2b0 [ 60.011440] warn_alloc+0x19a/0x2b0 [ 60.011453] ? zone_watermark_ok_safe+0x400/0x400 [ 60.011470] ? __next_timer_interrupt+0x150/0x150 [ 60.011486] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 60.011494] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 60.011517] __alloc_pages_slowpath+0x2546/0x2d00 [ 60.011568] ? warn_alloc+0x2b0/0x2b0 [ 60.011574] ? check_noncircular+0x20/0x20 [ 60.011583] ? check_preempt_wakeup+0x426/0xb20 [ 60.011600] ? print_irqtrace_events+0x270/0x270 [ 60.011632] ? lock_acquire+0x1d5/0x580 [ 60.011640] ? lock_acquire+0x1d5/0x580 [ 60.011655] ? __lock_acquire+0x664/0x3e00 [ 60.011669] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 60.011677] ? lock_release+0xa40/0xa40 [ 60.011740] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 60.011764] ? __might_sleep+0x95/0x190 [ 60.011779] __alloc_pages_nodemask+0x9fb/0xd80 [ 60.011786] ? lock_release+0xa40/0xa40 [ 60.011802] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 60.011822] ? pcpu_chunk_refresh_hint+0x425/0x570 [ 60.011838] ? print_irqtrace_events+0x270/0x270 [ 60.011858] ? __lock_is_held+0xb6/0x140 [ 60.011879] ? find_next_bit+0x27/0x30 [ 60.011895] pcpu_populate_chunk+0x1b3/0x880 [ 60.011923] pcpu_alloc+0x978/0x10e0 [ 60.011949] ? pcpu_free_area+0xa00/0xa00 [ 60.011964] ? vmap_page_range_noflush+0x523/0x720 [ 60.011980] ? retint_kernel+0x10/0x10 [ 60.011988] ? retint_kernel+0x10/0x10 [ 60.011999] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 60.012014] ? retint_kernel+0x10/0x10 [ 60.012026] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 60.012038] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 60.012062] ? retint_kernel+0x10/0x10 [ 60.012089] __alloc_percpu_gfp+0x27/0x30 [ 60.012101] array_map_alloc+0x794/0x990 [ 60.012118] ? perf_event_fd_array_get_ptr+0x230/0x230 [ 60.012130] SyS_bpf+0x93c/0x4840 [ 60.012137] ? check_noncircular+0x20/0x20 [ 60.012153] ? bpf_prog_get+0x20/0x20 [ 60.012170] ? perf_event_fork+0x30/0x30 [ 60.012191] ? __lock_is_held+0xb6/0x140 [ 60.012199] ? check_noncircular+0x20/0x20 [ 60.012218] ? __handle_mm_fault+0x80e/0x3ce0 [ 60.012234] ? check_noncircular+0x20/0x20 [ 60.012240] ? __pmd_alloc+0x4e0/0x4e0 [ 60.012249] ? vma_link+0xe9/0x170 [ 60.012265] ? find_held_lock+0x35/0x1d0 [ 60.012285] ? handle_mm_fault+0x248/0x8d0 [ 60.012299] ? find_held_lock+0x35/0x1d0 [ 60.012320] ? __do_page_fault+0x5f7/0xc90 [ 60.012330] ? lock_downgrade+0x980/0x980 [ 60.012352] ? handle_mm_fault+0x410/0x8d0 [ 60.012358] ? down_read_trylock+0xdb/0x170 [ 60.012364] ? __do_page_fault+0x32d/0xc90 [ 60.012375] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 60.012380] ? vmacache_find+0x5f/0x280 [ 60.012387] ? vmacache_update+0xfe/0x130 [ 60.012404] ? up_read+0x1a/0x40 [ 60.012413] ? __do_page_fault+0x3d6/0xc90 [ 60.012434] ? mm_fault_error+0x2c0/0x2c0 [ 60.012459] ? do_page_fault+0xee/0x720 [ 60.012471] ? __do_page_fault+0xc90/0xc90 [ 60.012494] ? SyS_mmap_pgoff+0x243/0x5f0 [ 60.012518] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 60.012538] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 60.012544] RIP: 0033:0x440179 [ 60.012548] RSP: 002b:00007ffc010ae7a8 EFLAGS: 00000217 ORIG_RAX: 0000000000000141 [ 60.012555] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 0000000000440179 [ 60.012560] RDX: 000000000000002c RSI: 00000000203dc000 RDI: 0000000000000000 [ 60.012563] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 60.012568] R10: 00000000ffffffff R11: 0000000000000217 R12: 00000000004016a0 [ 60.012572] R13: 0000000000401730 R14: 0000000000000000 R15: 0000000000000000 [ 60.012668] warn_alloc_show_mem: 1 callbacks suppressed [ 60.012670] Mem-Info: [ 60.012686] active_anon:2319 inactive_anon:63 isolated_anon:0 [ 60.012686] active_file:49 inactive_file:0 isolated_file:0 [ 60.012686] unevictable:0 dirty:17 writeback:0 unstable:0 [ 60.012686] slab_reclaimable:7329 slab_unreclaimable:82993 [ 60.012686] mapped:2 shmem:70 pagetables:287 bounce:0 [ 60.012686] free:15757 free_pcp:31 free_cma:0 [ 60.012699] Node 0 active_anon:9276kB inactive_anon:252kB active_file:196kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:68kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 60.012701] 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 [ 60.012717] lowmem_reserve[]: 0 2870 6381 6381 [ 60.012730] Node 0 DMA32 free:28604kB min:30328kB low:37908kB high:45488kB active_anon:28kB inactive_anon:4kB active_file:32kB inactive_file:84kB unevictable:0kB writepending:68kB present:3129332kB managed:2942312kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:120kB local_pcp:120kB free_cma:0kB [ 60.012746] lowmem_reserve[]: 0 0 3510 3510 [ 60.012758] Node 0 Normal free:18516kB min:37084kB low:46352kB high:55620kB active_anon:9248kB inactive_anon:248kB active_file:64kB inactive_file:12kB unevictable:0kB writepending:0kB present:4718592kB managed:3594624kB mlocked:0kB kernel_stack:2944kB pagetables:1148kB bounce:0kB free_pcp:4kB local_pcp:0kB free_cma:0kB [ 60.012774] lowmem_reserve[]: 0 0 0 0 [ 60.012786] 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 [ 60.012838] Node 0 DMA32: 21*4kB (UME) 13*8kB (UME) 12*16kB (UME) 10*32kB (ME) 10*64kB (UME) 5*128kB (M) 4*256kB (UME) 4*512kB (UME) 3*1024kB (ME) 4*2048kB (UME) 3*4096kB (M) = 28604kB [ 60.012897] Node 0 Normal: 325*4kB (UME) 104*8kB (UM) 176*16kB (UME) 114*32kB (UME) 51*64kB (UME) 22*128kB (ME) 11*256kB (UME) 2*512kB (UE) 0*1024kB 0*2048kB 0*4096kB = 18516kB [ 60.012953] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 60.012956] 118 total pagecache pages [ 60.012964] 0 pages in swap cache [ 60.012968] Swap cache stats: add 0, delete 0, find 0/0 [ 60.012971] Free swap = 0kB [ 60.012973] Total swap = 0kB [ 60.012976] 1965979 pages RAM [ 60.012978] 0 pages HighMem/MovableOnly [ 60.012981] 327768 pages reserved [ 61.053746] Node 0 DMA32: 21*4kB (UME) 13*8kB (UME) 11*16kB (ME) 10*32kB (ME) 10*64kB (UME) 5*128kB (M) 4*256kB (UME) 3*512kB (ME) 4*1024kB (UME) 4*2048kB (UME) 3*4096kB (M) = 29100kB [ 61.070346] Node 0 Normal: 308*4kB (ME) 93*8kB (UM) 174*16kB (ME) 113*32kB (ME) 51*64kB (UME) 23*128kB (UME) 11*256kB (UME) 2*512kB (UE) 0*1024kB 0*2048kB 0*4096kB = 18424kB [ 61.086032] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 61.094608] 118 total pagecache pages [ 61.098402] 0 pages in swap cache [ 61.101855] Swap cache stats: add 0, delete 0, find 0/0 [ 61.107228] Free swap = 0kB [ 61.110241] Total swap = 0kB [ 61.113953] 1965979 pages RAM [ 61.117093] 0 pages HighMem/MovableOnly [ 61.121864] 327768 pages reserved [ 61.125395] Unreclaimable slab info: [ 61.129195] Name Used Total [ 61.134756] hashtab_node 118KB 119KB [ 61.140127] ebitmap_node 382KB 385KB [ 61.145509] avtab_node 1012KB 1013KB [ 61.150894] TIPC 1KB 7KB [ 61.156261] SCTPv6 2KB 4KB [ 61.161639] DCCPv6 2KB 7KB [ 61.167034] DCCP 2KB 6KB [ 61.172438] fib6_nodes 0KB 4KB [ 61.177801] ip6_dst_cache 5KB 11KB [ 61.183174] RAWv6 9KB 13KB [ 61.188564] UDPv6 12KB 14KB [ 61.193926] TCPv6 2KB 5KB [ 61.199316] sd_ext_cdb 0KB 3KB [ 61.204681] scsi_sense_cache 112KB 140KB [ 61.210058] virtio_scsi_cmd 16KB 16KB [ 61.215422] sgpool-128 8KB 8KB [ 61.220798] sgpool-64 4KB 6KB [ 61.226169] sgpool-32 112KB 118KB [ 61.231542] sgpool-16 44KB 45KB [ 61.236906] sgpool-8 220KB 221KB [ 61.242951] cfq_io_cq 16KB 19KB [ 61.248313] cfq_queue 26KB 30KB [ 61.253691] mqueue_inode_cache 1KB 7KB [ 61.259161] nfs_commit_data 3KB 7KB [ 61.264540] nfs_write_data 34KB 37KB [ 61.269921] jbd2_inode 1KB 3KB [ 61.275307] ext4_system_zone 0KB 3KB [ 61.280678] bio-1 1KB 3KB [ 61.286059] rpc_buffers 17KB 19KB [ 61.291437] rpc_tasks 2KB 3KB [ 61.296817] UNIX 773KB 773KB [ 61.302183] tcp_bind_bucket 0KB 4KB [ 61.307563] ip_fib_trie 0KB 3KB [ 61.312944] ip_fib_alias 0KB 3KB [ 61.318338] ip_dst_cache 3KB 8KB [ 61.323718] RAW 5KB 7KB [ 61.329075] UDP 29KB 39KB [ 61.334454] TCP 7KB 7KB [ 61.339817] hugetlbfs_inode_cache 1KB 7KB [ 61.345536] eventpoll_pwq 10KB 11KB [ 61.350912] eventpoll_epi 19KB 23KB [ 61.356294] inotify_inode_mark 3KB 7KB [ 61.361765] request_queue 31KB 39KB [ 61.367130] blkdev_ioc 21KB 27KB [ 61.372501] bio-0 370KB 371KB [ 61.378680] biovec-(1<<(21-12)) 668KB 668KB [ 61.384250] biovec-64 178KB 181KB [ 61.389630] biovec-16 21KB 22KB [ 61.394990] bio_integrity_payload 0KB 4KB [ 61.400715] khugepaged_mm_slot 0KB 3KB [ 61.406185] uid_cache 0KB 3KB [ 61.411547] dmaengine-unmap-2 0KB 3KB [ 61.416918] audit_buffer 0KB 3KB [ 61.422285] skbuff_fclone_cache 143KB 146KB [ 61.427834] skbuff_head_cache 2017KB 2017KB [ 61.433195] configfs_dir_cache 0KB 4KB [ 61.438652] file_lock_cache 164KB 166KB [ 61.444039] file_lock_ctx 1KB 3KB [ 61.449427] fsnotify_mark_connector 2KB 3KB [ 61.455324] shmem_inode_cache 1055KB 1058KB [ 61.460689] task_delay_info 319KB 343KB [ 61.466050] sigqueue 370KB 370KB [ 61.471418] kernfs_node_cache 2290KB 2291KB [ 61.476782] mnt_cache 15KB 20KB [ 61.482159] filp 8261KB 8775KB [ 61.487523] names_cache 110402KB 110440KB [ 61.492898] avc_node 37KB 43KB [ 61.498279] selinux_file_security 413KB 492KB [ 61.503986] selinux_inode_security 1952KB 1956KB [ 61.509794] key_jar 3KB 7KB [ 61.515569] nsproxy 0KB 3KB [ 61.520941] vm_area_struct 18744KB 18755KB [ 61.526321] mm_struct 4534KB 4546KB [ 61.531684] fs_cache 426KB 436KB [ 61.537047] files_cache 1598KB 1601KB [ 61.542421] signal_cache 2548KB 2558KB [ 61.547784] sighand_cache 215KB 319KB [ 61.553140] task_struct 10878KB 10878KB [ 61.558512] cred_jar 2359KB 2364KB [ 61.563895] anon_vma_chain 7864KB 7867KB [ 61.569274] anon_vma 120KB 311KB [ 61.574635] pid 222KB 240KB [ 61.579993] Acpi-Operand 106KB 170KB [ 61.585367] Acpi-Namespace 19KB 23KB [ 61.590731] numa_policy 0KB 3KB [ 61.596088] debug_objects_cache 342KB 345KB [ 61.601631] trace_event_file 145KB 147KB [ 61.606993] ftrace_event_field 257KB 259KB [ 61.612441] pool_workqueue 24KB 28KB [ 61.617811] page->ptl 3104KB 3111KB [ 61.623213] kmalloc-262144 1032KB 1032KB [ 61.628580] kmalloc-131072 650KB 650KB [ 61.633938] kmalloc-65536 264KB 264KB [ 61.639311] kmalloc-32768 825KB 825KB [ 61.644676] kmalloc-16384 181KB 181KB [ 61.650446] kmalloc-8192 519KB 519KB [ 61.655818] kmalloc-4096 6443KB 6472KB [ 61.661196] kmalloc-2048 3236KB 3238KB [ 61.666561] kmalloc-1024 4023KB 4024KB [ 61.671937] kmalloc-512 2787KB 2790KB [ 61.677318] kmalloc-256 1914KB 2471KB [ 61.682680] kmalloc-128 406KB 515KB [ 61.688049] kmalloc-96 2124KB 2124KB [ 61.693918] kmalloc-64 2516KB 2516KB [ 61.699294] kmalloc-32 2398KB 2405KB [ 61.704723] kmalloc-192 932KB 932KB [ 61.710105] kmem_cache 101KB 105KB [ 61.715484] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 61.724129] [ 1818] 0 1818 5385 175 86016 0 -1000 udevd [ 61.732342] [ 3505] 0 3505 30682 516 122880 0 0 rsyslogd [ 61.740766] [ 3560] 0 3560 4725 50 81920 0 0 cron [ 61.748828] [ 3566] 0 3566 3736 45 69632 0 0 mcstransd [ 61.757334] [ 3588] 0 3588 12490 152 135168 0 -1000 sshd [ 61.765409] [ 3630] 0 3630 3694 41 77824 0 0 getty [ 61.773574] [ 3631] 0 3631 3694 42 73728 0 0 getty [ 61.781739] [ 3632] 0 3632 3694 41 77824 0 0 getty [ 61.790530] [ 3633] 0 3633 3694 39 77824 0 0 getty [ 61.798676] [ 3634] 0 3634 3694 40 73728 0 0 getty [ 61.806838] [ 3635] 0 3635 3694 39 77824 0 0 getty [ 61.815004] [ 3636] 0 3636 3649 40 73728 0 0 getty [ 61.823188] [ 3638] 0 3638 5681 454 86016 0 -1000 udevd [ 61.831345] [ 3639] 0 3639 5681 454 86016 0 -1000 udevd [ 61.839520] [ 3657] 0 3657 17821 197 184320 0 0 sshd [ 61.847603] [ 3660] 0 3660 4043 0 32768 0 0 syzkaller998488 [ 61.856660] [ 3665] 0 3665 4043 0 32768 0 0 syzkaller998488 [ 61.865675] [ 3666] 0 3666 4043 0 32768 0 0 syzkaller998488 [ 61.874696] [ 3667] 0 3667 4043 0 32768 0 0 syzkaller998488 [ 61.883715] Out of memory: Kill process 3505 (rsyslogd) score 0 or sacrifice child [ 61.892869] Killed process 3505 (rsyslogd) total-vm:122728kB, anon-rss:2064kB, file-rss:0kB, shmem-rss:0kB [ 61.907482] oom_reaper: reaped process 3505 (rsyslogd), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 61.918453] rsyslogd invoked oom-killer: gfp_mask=0x14040c0(GFP_KERNEL|__GFP_COMP), nodemask=(null), order=1, oom_score_adj=0 [ 61.930746] rsyslogd cpuset=/ mems_allowed=0 [ 61.935317] CPU: 0 PID: 3509 Comm: rsyslogd Not tainted 4.15.0-rc8+ #198 [ 61.942142] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 61.951479] Call Trace: [ 61.954063] dump_stack+0x194/0x257 [ 61.957685] ? arch_local_irq_restore+0x53/0x53 [ 61.962348] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 61.967539] dump_header+0x28c/0xe1e [ 61.971256] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 61.976439] ? pagefault_out_of_memory+0x152/0x152 [ 61.981355] ? check_noncircular+0x20/0x20 [ 61.985588] ? print_irqtrace_events+0x270/0x270 [ 61.990342] ? __lock_acquire+0x664/0x3e00 [ 61.994572] ? check_noncircular+0x20/0x20 [ 61.998809] ? print_irqtrace_events+0x270/0x270 [ 62.003565] ? check_noncircular+0x20/0x20 [ 62.007785] ? task_will_free_mem+0x252/0xaa0 [ 62.012277] ? print_irqtrace_events+0x270/0x270 [ 62.017031] ? ___ratelimit+0x30d/0x630 [ 62.020992] ? lock_downgrade+0x980/0x980 [ 62.025136] ? lock_release+0xa40/0xa40 [ 62.029105] ? mark_held_locks+0xaf/0x100 [ 62.033246] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 62.038341] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 62.043348] ? trace_hardirqs_on+0xd/0x10 [ 62.047493] ? ___ratelimit+0x95/0x630 [ 62.051376] ? idr_get_free_cmn+0xfd0/0xfd0 [ 62.055689] ? check_noncircular+0x20/0x20 [ 62.059900] ? find_held_lock+0x138/0x1d0 [ 62.064039] oom_kill_process+0x8b5/0x14a0 [ 62.068272] ? has_ns_capability_noaudit+0x163/0x2a0 [ 62.073364] ? check_noncircular+0x20/0x20 [ 62.077597] ? oom_evaluate_task+0x480/0x480 [ 62.081996] ? security_capable_noaudit+0x8b/0xc0 [ 62.086835] ? find_held_lock+0x35/0x1d0 [ 62.090888] ? check_noncircular+0x20/0x20 [ 62.095111] ? oom_unkillable_task+0x394/0x4c0 [ 62.099686] ? lock_downgrade+0x980/0x980 [ 62.103816] ? lock_release+0xa40/0xa40 [ 62.107766] ? find_lock_task_mm+0x460/0x460 [ 62.112165] ? find_held_lock+0x35/0x1d0 [ 62.116226] ? out_of_memory+0xb3a/0x1220 [ 62.120371] ? lock_downgrade+0x980/0x980 [ 62.124513] ? lock_release+0xa40/0xa40 [ 62.128472] ? lock_acquire+0x1d5/0x580 [ 62.132433] ? blocking_notifier_call_chain+0x112/0x190 [ 62.137779] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 62.142702] ? oom_evaluate_task+0x284/0x480 [ 62.147106] out_of_memory+0x86d/0x1220 [ 62.151081] ? oom_killer_disable+0x310/0x310 [ 62.155564] ? mutex_trylock+0x23a/0x2d0 [ 62.159606] ? __lock_is_held+0xb6/0x140 [ 62.163650] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 62.169112] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 62.173960] ? warn_alloc+0x2b0/0x2b0 [ 62.177753] ? warn_alloc+0x2b0/0x2b0 [ 62.181547] ? print_irqtrace_events+0x270/0x270 [ 62.186295] ? warn_alloc+0x2b0/0x2b0 [ 62.190083] ? print_irqtrace_events+0x270/0x270 [ 62.194827] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 62.199988] ? switched_to_fair+0xb0/0xb0 [ 62.204116] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 62.209313] ? __lock_acquire+0x664/0x3e00 [ 62.213547] ? should_fail+0x23b/0xa40 [ 62.217430] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 62.222546] ? __lock_is_held+0xb6/0x140 [ 62.226624] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 62.232496] ? trace_hardirqs_on+0xd/0x10 [ 62.236643] ? __might_sleep+0x95/0x190 [ 62.240613] __alloc_pages_nodemask+0x9fb/0xd80 [ 62.245281] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 62.250285] ? __alloc_pages_nodemask+0xadb/0xd80 [ 62.255119] ? print_irqtrace_events+0x270/0x270 [ 62.259866] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 62.264886] ? cache_grow_begin+0x307/0x3f0 [ 62.269206] cache_grow_begin+0x72/0x3f0 [ 62.273269] fallback_alloc+0x13b/0x2a0 [ 62.277245] ____cache_alloc_node+0x1cc/0x1e0 [ 62.281740] kmem_cache_alloc_trace+0x27d/0x750 [ 62.286403] ? dl_cpu_busy+0x370/0x370 [ 62.290302] do_syslog+0x5d7/0xb80 [ 62.293828] ? log_buf_vmcoreinfo_setup+0x120/0x120 [ 62.298831] ? prepare_to_wait+0x4d0/0x4d0 [ 62.303064] ? __lock_is_held+0xb6/0x140 [ 62.307122] kmsg_read+0x74/0xa0 [ 62.310482] ? kmsg_poll+0xa0/0xa0 [ 62.314003] proc_reg_read+0xef/0x170 [ 62.317791] ? proc_reg_write+0x170/0x170 [ 62.321912] __vfs_read+0xef/0xa00 [ 62.325432] ? fsnotify+0x7b3/0x1140 [ 62.329138] ? vfs_copy_file_range+0x940/0x940 [ 62.333714] ? fsnotify_first_mark+0x2b0/0x2b0 [ 62.338286] ? avc_policy_seqno+0x9/0x20 [ 62.342336] ? selinux_file_permission+0x82/0x460 [ 62.347180] ? security_file_permission+0x89/0x1e0 [ 62.352106] ? rw_verify_area+0xe5/0x2b0 [ 62.356157] ? __fdget_raw+0x20/0x20 [ 62.359858] vfs_read+0x11e/0x350 [ 62.363303] SyS_read+0xef/0x220 [ 62.366668] ? kernel_write+0x120/0x120 [ 62.370632] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 62.375643] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 62.380405] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 62.385149] RIP: 0033:0x7f3a3b7cc1fd [ 62.388841] RSP: 002b:00007f3a38d6be30 EFLAGS: 00000293 ORIG_RAX: 0000000000000000 [ 62.396535] RAX: ffffffffffffffda RBX: 00007f3a3414ffd0 RCX: 00007f3a3b7cc1fd [ 62.403789] RDX: 0000000000000fff RSI: 00007f3a3a5a05a0 RDI: 0000000000000004 [ 62.411047] RBP: 00007f3a34000020 R08: 00000000020f7260 R09: 0000000000000000 [ 62.418302] R10: 33205d3237373334 R11: 0000000000000293 R12: 00007f3a3414ffc0 [ 62.425560] R13: 0000000000000040 R14: 0000000000001041 R15: 0000000000001000 [ 62.433365] Mem-Info: [ 62.438051] active_anon:1769 inactive_anon:63 isolated_anon:0 [ 62.438051] active_file:28 inactive_file:20 isolated_file:0 [ 62.438051] unevictable:0 dirty:17 writeback:0 unstable:0 [ 62.438051] slab_reclaimable:7328 slab_unreclaimable:82973 [ 62.438051] mapped:2 shmem:70 pagetables:283 bounce:0 [ 62.438051] free:15850 free_pcp:147 free_cma:0 [ 62.470366] Node 0 active_anon:7076kB inactive_anon:252kB active_file:212kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:68kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 62.496936] 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 [ 62.523080] lowmem_reserve[]: 0 2870 6381 6381 [ 62.527699] Node 0 DMA32 free:29112kB min:30328kB low:37908kB high:45488kB active_anon:28kB inactive_anon:4kB active_file:164kB inactive_file:52kB unevictable:0kB writepending:68kB present:3129332kB managed:2942312kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:324kB local_pcp:84kB free_cma:0kB [ 62.556472] lowmem_reserve[]: 0 0 3510 3510 [ 62.560840] Node 0 Normal free:18380kB min:37084kB low:46352kB high:55620kB active_anon:7048kB inactive_anon:248kB active_file:72kB inactive_file:4kB unevictable:0kB writepending:0kB present:4718592kB managed:3594624kB mlocked:0kB kernel_stack:2880kB pagetables:1132kB bounce:0kB free_pcp:264kB local_pcp:244kB free_cma:0kB [ 62.589516] lowmem_reserve[]: 0 0 0 0 [ 62.593359] 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 [ 62.607029] Node 0 DMA32: 2*4kB (UE) 6*8kB (ME) 12*16kB (UME) 10*32kB (ME) 10*64kB (UME) 6*128kB (UM) 4*256kB (UME) 3*512kB (ME) 4*1024kB (UME) 4*2048kB (UME) 3*4096kB (M) = 29112kB [ 62.623465] Node 0 Normal: 195*4kB (ME) 208*8kB (UM) 150*16kB (UME) 105*32kB (UM) 67*64kB (UME) 26*128kB (UM) 10*256kB (UM) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 18380kB [ 62.638753] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 62.647345] 119 total pagecache pages [ 62.651160] 0 pages in swap cache [ 62.654621] Swap cache stats: add 0, delete 0, find 0/0 [ 62.659976] Free swap = 0kB [ 62.662980] Total swap = 0kB [ 62.666025] 1965979 pages RAM [ 62.669139] 0 pages HighMem/MovableOnly [ 62.673118] 327768 pages reserved [ 62.676615] Unreclaimable slab info: [ 62.680426] Name Used Total [ 62.685992] hashtab_node 118KB 119KB [ 62.691370] ebitmap_node 382KB 385KB [ 62.696754] avtab_node 1012KB 1013KB [ 62.702134] TIPC 1KB 7KB [ 62.707516] SCTPv6 2KB 4KB [ 62.712882] DCCPv6 2KB 7KB [ 62.718254] DCCP 2KB 6KB [ 62.723651] fib6_nodes 0KB 4KB [ 62.729036] ip6_dst_cache 5KB 11KB [ 62.734411] RAWv6 9KB 13KB [ 62.739782] UDPv6 12KB 14KB [ 62.745152] TCPv6 2KB 5KB [ 62.750543] sd_ext_cdb 0KB 3KB [ 62.756038] scsi_sense_cache 108KB 140KB [ 62.761414] virtio_scsi_cmd 16KB 16KB [ 62.766794] sgpool-128 8KB 8KB [ 62.772165] sgpool-64 4KB 6KB [ 62.777544] sgpool-32 105KB 118KB [ 62.782904] sgpool-16 43KB 45KB [ 62.788269] sgpool-8 219KB 221KB [ 62.793645] cfq_io_cq 16KB 19KB [ 62.799028] cfq_queue 25KB 30KB [ 62.804403] mqueue_inode_cache 1KB 7KB [ 62.809850] nfs_commit_data 3KB 7KB [ 62.815219] nfs_write_data 34KB 37KB [ 62.820593] jbd2_inode 1KB 3KB [ 62.825965] ext4_system_zone 0KB 3KB [ 62.831352] bio-1 1KB 3KB [ 62.836738] rpc_buffers 17KB 19KB [ 62.842111] rpc_tasks 2KB 3KB [ 62.847495] UNIX 773KB 773KB [ 62.852874] tcp_bind_bucket 0KB 4KB [ 62.858827] ip_fib_trie 0KB 3KB [ 62.864200] ip_fib_alias 0KB 3KB [ 62.869565] ip_dst_cache 3KB 8KB [ 62.874936] RAW 5KB 7KB [ 62.880318] UDP 29KB 39KB [ 62.885685] TCP 7KB 7KB [ 62.891049] hugetlbfs_inode_cache 1KB 7KB [ 62.896767] eventpoll_pwq 10KB 11KB [ 62.902140] eventpoll_epi 19KB 23KB [ 62.907500] inotify_inode_mark 3KB 7KB [ 62.912958] request_queue 31KB 39KB [ 62.918357] blkdev_ioc 21KB 27KB [ 62.923717] bio-0 368KB 371KB [ 62.929088] biovec-(1<<(21-12)) 668KB 668KB [ 62.934639] biovec-64 177KB 181KB [ 62.939996] biovec-16 20KB 22KB [ 62.945374] bio_integrity_payload 0KB 4KB [ 62.951096] khugepaged_mm_slot 0KB 3KB [ 62.956563] uid_cache 0KB 3KB [ 62.961924] dmaengine-unmap-2 0KB 3KB [ 62.967293] audit_buffer 0KB 3KB [ 62.972677] skbuff_fclone_cache 143KB 146KB [ 62.978213] skbuff_head_cache 2017KB 2017KB [ 62.983584] configfs_dir_cache 0KB 4KB [ 62.989045] file_lock_cache 164KB 166KB [ 62.994416] file_lock_ctx 1KB 3KB [ 62.999791] fsnotify_mark_connector 2KB 3KB [ 63.005691] shmem_inode_cache 1055KB 1058KB [ 63.011055] task_delay_info 319KB 343KB [ 63.016428] taskstats 0KB 3KB [ 63.021802] sigqueue 368KB 370KB [ 63.027180] kernfs_node_cache 2290KB 2291KB [ 63.032545] mnt_cache 15KB 20KB [ 63.037913] filp 8254KB 8771KB [ 63.043283] names_cache 110398KB 110436KB [ 63.048669] avc_node 37KB 43KB [ 63.054042] selinux_file_security 412KB 492KB [ 63.059766] selinux_inode_security 1951KB 1956KB [ 63.065575] key_jar 3KB 7KB [ 63.070950] nsproxy 0KB 3KB [ 63.076331] vm_area_struct 18741KB 18755KB [ 63.081694] mm_struct 4534KB 4546KB [ 63.087062] fs_cache 426KB 436KB [ 63.092422] files_cache 1598KB 1601KB [ 63.097791] signal_cache 2548KB 2558KB [ 63.103151] sighand_cache 215KB 319KB [ 63.108524] task_struct 10878KB 10878KB [ 63.113886] cred_jar 2359KB 2364KB [ 63.119254] anon_vma_chain 7863KB 7867KB [ 63.124636] anon_vma 117KB 311KB [ 63.129992] pid 222KB 240KB [ 63.135369] Acpi-Operand 106KB 170KB [ 63.140734] Acpi-Namespace 19KB 23KB [ 63.146106] numa_policy 0KB 3KB [ 63.151465] debug_objects_cache 342KB 345KB [ 63.156994] trace_event_file 145KB 147KB [ 63.162373] ftrace_event_field 257KB 259KB [ 63.167819] pool_workqueue 24KB 28KB [ 63.173187] page->ptl 3104KB 3111KB [ 63.178583] kmalloc-262144 1032KB 1032KB [ 63.183945] kmalloc-131072 650KB 650KB [ 63.189320] kmalloc-65536 264KB 264KB [ 63.194681] kmalloc-32768 825KB 825KB [ 63.200053] kmalloc-16384 181KB 181KB [ 63.205427] kmalloc-8192 519KB 519KB [ 63.210800] kmalloc-4096 6438KB 6472KB [ 63.216176] kmalloc-2048 3236KB 3238KB [ 63.221555] kmalloc-1024 4021KB 4024KB [ 63.226913] kmalloc-512 2786KB 2790KB [ 63.232289] kmalloc-256 1910KB 2471KB [ 63.237666] kmalloc-128 406KB 515KB [ 63.243041] kmalloc-96 2123KB 2124KB [ 63.248405] kmalloc-64 2520KB 2520KB [ 63.253774] kmalloc-32 2401KB 2405KB [ 63.259164] kmalloc-192 930KB 932KB [ 63.264536] kmem_cache 101KB 105KB [ 63.269896] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 63.278570] [ 1818] 0 1818 5385 175 86016 0 -1000 udevd [ 63.286819] [ 3505] 0 3505 30682 0 122880 0 0 rsyslogd [ 63.295230] [ 3560] 0 3560 4725 50 81920 0 0 cron [ 63.303310] [ 3566] 0 3566 3736 45 69632 0 0 mcstransd [ 63.311978] [ 3588] 0 3588 12490 152 135168 0 -1000 sshd [ 63.320042] [ 3630] 0 3630 3694 41 77824 0 0 getty [ 63.328203] [ 3631] 0 3631 3694 42 73728 0 0 getty [ 63.336366] [ 3632] 0 3632 3694 41 77824 0 0 getty [ 63.344531] [ 3633] 0 3633 3694 39 77824 0 0 getty [ 63.352689] [ 3634] 0 3634 3694 40 73728 0 0 getty [ 63.360852] [ 3635] 0 3635 3694 39 77824 0 0 getty [ 63.369053] [ 3636] 0 3636 3649 40 73728 0 0 getty [ 63.377194] [ 3638] 0 3638 5681 454 86016 0 -1000 udevd [ 63.385347] [ 3639] 0 3639 5681 454 86016 0 -1000 udevd [ 63.393521] [ 3657] 0 3657 17821 197 184320 0 0 sshd [ 63.401599] [ 3660] 0 3660 4043 0 32768 0 0 syzkaller998488 [ 63.410626] [ 3665] 0 3665 4043 0 32768 0 0 syzkaller998488 [ 63.419647] [ 3666] 0 3666 4043 0 32768 0 0 syzkaller998488 [ 63.428663] [ 3667] 0 3667 4043 0 32768 0 0 syzkaller998488 [ 63.437680] Out of memory: Kill process 3657 (sshd) score 0 or sacrifice child [ 63.445289] Killed process 3657 (sshd) total-vm:71284kB, anon-rss:784kB, file-rss:0kB, shmem-rss:4kB [ 63.456315] oom_reaper: reaped process 3657 (sshd), now anon-rss:0kB, file-rss:0kB, shmem-rss:4kB [ 63.517267] syzkaller998488 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 63.529621] syzkaller998488 cpuset=/ mems_allowed=0 [ 63.534638] CPU: 1 PID: 3660 Comm: syzkaller998488 Not tainted 4.15.0-rc8+ #198 [ 63.542052] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.551374] Call Trace: [ 63.553938] dump_stack+0x194/0x257 [ 63.557539] ? arch_local_irq_restore+0x53/0x53 [ 63.562178] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 63.567346] dump_header+0x28c/0xe1e [ 63.571033] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 63.576201] ? pagefault_out_of_memory+0x152/0x152 [ 63.581131] ? __lock_acquire+0x664/0x3e00 [ 63.585360] ? check_noncircular+0x20/0x20 [ 63.589599] ? print_irqtrace_events+0x270/0x270 [ 63.594354] ? check_noncircular+0x20/0x20 [ 63.598571] ? task_will_free_mem+0x252/0xaa0 [ 63.603054] ? print_irqtrace_events+0x270/0x270 [ 63.607823] ? ___ratelimit+0x30d/0x630 [ 63.611786] ? lock_downgrade+0x980/0x980 [ 63.615918] ? lock_release+0xa40/0xa40 [ 63.619876] ? mark_held_locks+0xaf/0x100 [ 63.624009] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 63.626825] rsyslogd (3509) used greatest stack depth: 14128 bytes left [ 63.635826] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 63.640817] ? trace_hardirqs_on+0xd/0x10 [ 63.644965] ? ___ratelimit+0x95/0x630 [ 63.648824] ? idr_get_free_cmn+0xfd0/0xfd0 [ 63.653118] ? find_held_lock+0x138/0x1d0 [ 63.657250] oom_kill_process+0x8b5/0x14a0 [ 63.661456] ? lock_downgrade+0x980/0x980 [ 63.665577] ? lock_release+0xa40/0xa40 [ 63.669526] ? check_noncircular+0x20/0x20 [ 63.673730] ? find_held_lock+0x35/0x1d0 [ 63.677765] ? oom_evaluate_task+0x480/0x480 [ 63.682147] ? oom_badness+0x21b/0x980 [ 63.686008] ? lock_downgrade+0x980/0x980 [ 63.690525] ? find_lock_task_mm+0x23b/0x460 [ 63.694911] ? find_held_lock+0x35/0x1d0 [ 63.698945] ? check_noncircular+0x20/0x20 [ 63.703153] ? oom_unkillable_task+0x394/0x4c0 [ 63.707706] ? lock_downgrade+0x980/0x980 [ 63.711828] ? lock_release+0xa40/0xa40 [ 63.715774] ? do_try_to_free_pages+0xc53/0x1020 [ 63.720501] ? find_lock_task_mm+0x460/0x460 [ 63.724881] ? find_held_lock+0x35/0x1d0 [ 63.728917] ? out_of_memory+0xb3a/0x1220 [ 63.733039] ? lock_downgrade+0x980/0x980 [ 63.737162] ? lock_release+0xa40/0xa40 [ 63.741104] ? lock_acquire+0x1d5/0x580 [ 63.745047] ? blocking_notifier_call_chain+0x112/0x190 [ 63.750379] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 63.755286] ? oom_evaluate_task+0x284/0x480 [ 63.759670] out_of_memory+0x86d/0x1220 [ 63.763615] ? trace_hardirqs_on+0xd/0x10 [ 63.767743] ? oom_killer_disable+0x310/0x310 [ 63.772208] ? mutex_trylock+0x23a/0x2d0 [ 63.776244] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 63.781663] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 63.787525] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 63.792361] ? warn_alloc+0x2b0/0x2b0 [ 63.796131] ? check_noncircular+0x20/0x20 [ 63.800337] ? check_preempt_wakeup+0x426/0xb20 [ 63.804979] ? print_irqtrace_events+0x270/0x270 [ 63.809717] ? lock_acquire+0x1d5/0x580 [ 63.813666] ? lock_acquire+0x1d5/0x580 [ 63.817616] ? __lock_acquire+0x664/0x3e00 [ 63.821823] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 63.827675] ? lock_release+0xa40/0xa40 [ 63.831654] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 63.837516] ? __might_sleep+0x95/0x190 [ 63.841468] __alloc_pages_nodemask+0x9fb/0xd80 [ 63.846109] ? lock_release+0xa40/0xa40 [ 63.850058] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 63.855061] ? pcpu_chunk_refresh_hint+0x425/0x570 [ 63.859979] ? print_irqtrace_events+0x270/0x270 [ 63.864711] ? __lock_is_held+0xb6/0x140 [ 63.868752] ? find_next_bit+0x27/0x30 [ 63.872616] pcpu_populate_chunk+0x1b3/0x880 [ 63.877005] pcpu_alloc+0x978/0x10e0 [ 63.880706] ? pcpu_free_area+0xa00/0xa00 [ 63.884824] ? __pte_alloc_kernel+0x1bd/0x2a0 [ 63.889294] ? vmap_page_range_noflush+0x523/0x720 [ 63.894205] ? retint_kernel+0x10/0x10 [ 63.898068] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 63.903058] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 63.907791] ? retint_kernel+0x10/0x10 [ 63.911657] __alloc_percpu_gfp+0x27/0x30 [ 63.915775] array_map_alloc+0x794/0x990 [ 63.919810] ? perf_event_fd_array_get_ptr+0x230/0x230 [ 63.925056] SyS_bpf+0x93c/0x4840 [ 63.928480] ? check_noncircular+0x20/0x20 [ 63.932689] ? bpf_prog_get+0x20/0x20 [ 63.936466] ? perf_event_fork+0x30/0x30 [ 63.940507] ? __lock_is_held+0xb6/0x140 [ 63.944538] ? check_noncircular+0x20/0x20 [ 63.948749] ? __handle_mm_fault+0x80e/0x3ce0 [ 63.953221] ? check_noncircular+0x20/0x20 [ 63.957424] ? __pmd_alloc+0x4e0/0x4e0 [ 63.961284] ? vma_link+0xe9/0x170 [ 63.964796] ? find_held_lock+0x35/0x1d0 [ 63.968834] ? handle_mm_fault+0x248/0x8d0 [ 63.973041] ? find_held_lock+0x35/0x1d0 [ 63.977081] ? __do_page_fault+0x5f7/0xc90 [ 63.981285] ? lock_downgrade+0x980/0x980 [ 63.985411] ? handle_mm_fault+0x410/0x8d0 [ 63.989614] ? down_read_trylock+0xdb/0x170 [ 63.993903] ? __do_page_fault+0x32d/0xc90 [ 63.998109] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 64.002660] ? vmacache_find+0x5f/0x280 [ 64.006603] ? vmacache_update+0xfe/0x130 [ 64.010731] ? up_read+0x1a/0x40 [ 64.014066] ? __do_page_fault+0x3d6/0xc90 [ 64.018278] ? mm_fault_error+0x2c0/0x2c0 [ 64.022405] ? do_page_fault+0xee/0x720 [ 64.026348] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 64.031856] ? __do_page_fault+0xc90/0xc90 [ 64.036067] ? SyS_mmap_pgoff+0x243/0x5f0 [ 64.040193] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 64.044924] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 64.049646] RIP: 0033:0x440179 [ 64.052804] RSP: 002b:00007ffc010ae7a8 EFLAGS: 00000217 ORIG_RAX: 0000000000000141 [ 64.060483] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 0000000000440179 Connection to 10.128.0.54 closed by remote host. [ 64.067724] RDX: 000