[....] Starting enhanced syslogd: rsyslogd[ 13.179046] audit: type=1400 audit(1516113639.089:5): 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 periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 19.252430] audit: type=1400 audit(1516113645.163:6): avc: denied { map } for pid=3644 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added '10.128.15.193' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program [ 25.513464] audit: type=1400 audit(1516113651.424:7): avc: denied { map } for pid=3658 comm="syzkaller617356" path="/root/syzkaller617356035" 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 [ 25.567138] audit: type=1400 audit(1516113651.428:8): avc: denied { map_create } for pid=3666 comm="syzkaller617356" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=bpf permissive=1 [ 31.644995] syzkaller617356 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 31.657710] syzkaller617356 cpuset=/ mems_allowed=0 [ 31.664010] CPU: 0 PID: 3664 Comm: syzkaller617356 Not tainted 4.15.0-rc7+ #191 [ 31.671458] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.680814] Call Trace: [ 31.683380] dump_stack+0x194/0x257 [ 31.686983] ? arch_local_irq_restore+0x53/0x53 [ 31.691637] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 31.696806] dump_header+0x28c/0xe1e [ 31.700497] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 31.705663] ? pagefault_out_of_memory+0x152/0x152 [ 31.710564] ? check_noncircular+0x20/0x20 [ 31.714774] ? print_irqtrace_events+0x270/0x270 [ 31.719506] ? __lock_acquire+0x664/0x3e00 [ 31.724593] ? check_noncircular+0x20/0x20 [ 31.729848] ? find_held_lock+0x35/0x1d0 [ 31.734156] ? check_noncircular+0x20/0x20 [ 31.738364] ? task_will_free_mem+0x252/0xaa0 [ 31.744575] ? print_irqtrace_events+0x270/0x270 [ 31.750358] ? ___ratelimit+0x30d/0x630 [ 31.754308] ? lock_downgrade+0x980/0x980 [ 31.758445] ? lock_release+0xa40/0xa40 [ 31.762397] ? mark_held_locks+0xaf/0x100 [ 31.766518] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 31.771594] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 31.776585] ? trace_hardirqs_on+0xd/0x10 [ 31.780707] ? ___ratelimit+0x95/0x630 [ 31.784568] ? idr_get_free_cmn+0xfd0/0xfd0 [ 31.788871] ? check_noncircular+0x20/0x20 [ 31.793077] ? find_held_lock+0x138/0x1d0 [ 31.797206] oom_kill_process+0x8b5/0x14a0 [ 31.801434] ? has_ns_capability_noaudit+0x163/0x2a0 [ 31.806510] ? lock_downgrade+0x980/0x980 [ 31.810650] ? oom_evaluate_task+0x480/0x480 [ 31.815051] ? security_capable_noaudit+0x8b/0xc0 [ 31.819869] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 31.824947] ? has_capability+0x30/0x30 [ 31.828895] ? do_raw_spin_trylock+0x190/0x190 [ 31.833451] ? check_noncircular+0x20/0x20 [ 31.837666] ? has_capability_noaudit+0x24/0x30 [ 31.842307] ? oom_badness+0xd1/0x980 [ 31.846081] ? lock_release+0xa40/0xa40 [ 31.850040] ? find_lock_task_mm+0x460/0x460 [ 31.854420] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 31.860028] ? find_held_lock+0x35/0x1d0 [ 31.864075] ? out_of_memory+0xb3a/0x1220 [ 31.868209] ? lock_downgrade+0x980/0x980 [ 31.872335] ? lock_release+0xa40/0xa40 [ 31.876282] ? lock_acquire+0x256/0x580 [ 31.880240] ? oom_evaluate_task+0x284/0x480 [ 31.884626] out_of_memory+0x86d/0x1220 [ 31.888583] ? oom_killer_disable+0x310/0x310 [ 31.893060] ? mutex_trylock+0x23a/0x2d0 [ 31.897104] ? __lock_is_held+0xb6/0x140 [ 31.901138] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 31.906571] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 31.911414] ? warn_alloc+0x2b0/0x2b0 [ 31.915191] ? lock_release+0xa40/0xa40 [ 31.919140] ? trace_hardirqs_off+0xd/0x10 [ 31.923352] ? print_irqtrace_events+0x270/0x270 [ 31.928092] ? mutex_spin_on_owner+0x446/0xb50 [ 31.932655] ? __lock_acquire+0x664/0x3e00 [ 31.936866] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 31.942724] ? lock_release+0xa40/0xa40 [ 31.946688] ? __lock_is_held+0xb6/0x140 [ 31.950736] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 31.956601] ? __might_sleep+0x95/0x190 [ 31.960554] __alloc_pages_nodemask+0x9fb/0xd80 [ 31.965723] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 31.971004] ? pcpu_chunk_refresh_hint+0x425/0x570 [ 31.975934] ? print_irqtrace_events+0x270/0x270 [ 31.980672] ? __lock_is_held+0xb6/0x140 [ 31.984717] ? find_next_bit+0x27/0x30 [ 31.989286] pcpu_populate_chunk+0x1b3/0x880 [ 31.993685] pcpu_alloc+0x978/0x10e0 [ 31.997383] ? pcpu_free_area+0xa00/0xa00 [ 32.001516] ? vmap_page_range_noflush+0x523/0x720 [ 32.006427] ? retint_kernel+0x10/0x10 [ 32.010290] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 32.015282] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 32.020026] ? retint_kernel+0x10/0x10 [ 32.023908] __alloc_percpu_gfp+0x27/0x30 [ 32.028037] array_map_alloc+0x778/0xa00 [ 32.032085] SyS_bpf+0x7f8/0x4400 [ 32.035511] ? check_noncircular+0x20/0x20 [ 32.039724] ? bpf_prog_get+0x20/0x20 [ 32.043503] ? perf_event_fork+0x30/0x30 [ 32.047545] ? __lock_is_held+0xb6/0x140 [ 32.051576] ? check_noncircular+0x20/0x20 [ 32.055789] ? __handle_mm_fault+0x80e/0x3ce0 [ 32.060259] ? check_noncircular+0x20/0x20 [ 32.064465] ? __pmd_alloc+0x4e0/0x4e0 [ 32.068328] ? vma_link+0xe9/0x170 [ 32.071849] ? find_held_lock+0x35/0x1d0 [ 32.075890] ? handle_mm_fault+0x248/0x8d0 [ 32.080100] ? find_held_lock+0x35/0x1d0 [ 32.084140] ? __do_page_fault+0x5f7/0xc90 [ 32.088349] ? lock_downgrade+0x980/0x980 [ 32.092476] ? handle_mm_fault+0x410/0x8d0 [ 32.097638] ? down_read_trylock+0xdb/0x170 [ 32.103495] ? __do_page_fault+0x32d/0xc90 [ 32.108834] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 32.115476] ? vmacache_find+0x5f/0x280 [ 32.120378] ? vmacache_update+0xfe/0x130 [ 32.125980] ? up_read+0x1a/0x40 [ 32.130365] ? __do_page_fault+0x3d6/0xc90 [ 32.136288] ? mm_fault_error+0x2c0/0x2c0 [ 32.141633] ? do_page_fault+0xee/0x720 [ 32.147317] ? __do_page_fault+0xc90/0xc90 [ 32.152923] ? SyS_mmap_pgoff+0x243/0x5f0 [ 32.158705] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 32.165531] entry_SYSCALL_64_fastpath+0x23/0x9a [ 32.171739] RIP: 0033:0x440139 [ 32.175944] RSP: 002b:00007ffccc9e6ab8 EFLAGS: 00000217 ORIG_RAX: 0000000000000141 [ 32.185533] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 0000000000440139 [ 32.192776] RDX: 000000000000002c RSI: 0000000020c47fec RDI: 0000000000000000 [ 32.200020] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 32.207265] R10: 00000000ffffffff R11: 0000000000000217 R12: 00000000004016a0 [ 32.214507] R13: 0000000000401730 R14: 0000000000000000 R15: 0000000000000000 [ 32.221871] Mem-Info: [ 32.224847] active_anon:7886 inactive_anon:63 isolated_anon:0 [ 32.224847] active_file:12 inactive_file:13 isolated_file:0 [ 32.224847] unevictable:0 dirty:0 writeback:0 unstable:0 [ 32.224847] slab_reclaimable:7276 slab_unreclaimable:83669 [ 32.224847] mapped:2 shmem:70 pagetables:349 bounce:0 [ 32.224847] free:24440 free_pcp:111 free_cma:0 [ 32.257010] Node 0 active_anon:31544kB inactive_anon:252kB active_file:48kB 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? no [ 32.283911] 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 [ 32.310119] lowmem_reserve[]: 0 2870 6381 6381 [ 32.314739] Node 0 DMA32 free:44116kB min:30332kB low:37912kB high:45492kB active_anon:28kB inactive_anon:4kB active_file:8kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2942320kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 32.342042] lowmem_reserve[]: 0 0 3510 3510 [ 32.346410] Node 0 Normal free:37792kB min:37084kB low:46352kB high:55620kB active_anon:31516kB inactive_anon:248kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3136kB pagetables:1396kB bounce:0kB free_pcp:444kB local_pcp:0kB free_cma:0kB [ 32.375513] lowmem_reserve[]: 0 0 0 0 [ 32.379347] 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 [ 32.393052] Node 0 DMA32: 7*4kB (UM) 5*8kB (UM) 3*16kB (M) 1*32kB (M) 3*64kB (M) 4*128kB (M) 5*256kB (UM) 4*512kB (UM) 3*1024kB (UM) 2*2048kB (M) 8*4096kB (M) = 44116kB [ 32.410861] Node 0 Normal: 660*4kB (UMEH) 510*8kB (UMEH) 288*16kB (UMEH) 123*32kB (UMH) 66*64kB (UM) 55*128kB (UM) 28*256kB (M) 8*512kB (M) 0*1024kB 0*2048kB 0*4096kB = 37792kB [ 32.428891] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 32.437502] 95 total pagecache pages [ 32.441243] 0 pages in swap cache [ 32.444699] Swap cache stats: add 0, delete 0, find 0/0 [ 32.450062] Free swap = 0kB [ 32.453084] Total swap = 0kB [ 32.456104] 1965979 pages RAM [ 32.459211] 0 pages HighMem/MovableOnly [ 32.463198] 327765 pages reserved [ 32.466698] Unreclaimable slab info: [ 32.470464] Name Used Total [ 32.476071] hashtab_node 118KB 119KB [ 32.481443] ebitmap_node 382KB 385KB [ 32.486810] avtab_node 1012KB 1013KB [ 32.492171] TIPC 1KB 7KB [ 32.497543] SCTPv6 2KB 4KB [ 32.502914] DCCPv6 2KB 7KB [ 32.508752] DCCP 2KB 6KB [ 32.514131] fib6_nodes 0KB 4KB [ 32.519507] ip6_dst_cache 5KB 7KB [ 32.524877] RAWv6 9KB 13KB [ 32.530240] UDPv6 12KB 14KB [ 32.535617] TCPv6 2KB 5KB [ 32.540996] sd_ext_cdb 0KB 3KB [ 32.546369] scsi_sense_cache 64KB 120KB [ 32.551736] virtio_scsi_cmd 16KB 16KB [ 32.557115] sgpool-128 8KB 8KB [ 32.562481] sgpool-64 4KB 6KB [ 32.567841] sgpool-32 70KB 70KB [ 32.573213] sgpool-16 26KB 26KB [ 32.578577] sgpool-8 144KB 153KB [ 32.583935] cfq_io_cq 14KB 19KB [ 32.589306] cfq_queue 23KB 27KB [ 32.594690] mqueue_inode_cache 1KB 7KB [ 32.600140] nfs_commit_data 3KB 7KB [ 32.605515] nfs_write_data 34KB 37KB [ 32.610886] jbd2_inode 1KB 3KB [ 32.616249] ext4_system_zone 0KB 3KB [ 32.621632] bio-1 1KB 3KB [ 32.627043] rpc_buffers 17KB 19KB [ 32.632412] rpc_tasks 2KB 3KB [ 32.637786] UNIX 773KB 773KB [ 32.643990] tcp_bind_bucket 0KB 4KB [ 32.649378] ip_fib_trie 0KB 3KB [ 32.654745] ip_fib_alias 0KB 3KB [ 32.660104] ip_dst_cache 3KB 4KB [ 32.665479] RAW 5KB 7KB [ 32.670848] UDP 29KB 31KB [ 32.676208] request_sock_TCP 0KB 3KB [ 32.681580] TCP 7KB 15KB [ 32.686949] hugetlbfs_inode_cache 1KB 7KB [ 32.692658] eventpoll_pwq 10KB 11KB [ 32.698028] eventpoll_epi 19KB 23KB [ 32.703400] inotify_inode_mark 3KB 7KB [ 32.708858] request_queue 53KB 135KB [ 32.714216] blkdev_ioc 20KB 23KB [ 32.719591] bio-0 273KB 273KB [ 32.724962] biovec-(1<<(21-12)) 371KB 371KB [ 32.730496] biovec-64 94KB 94KB [ 32.736332] biovec-16 10KB 15KB [ 32.741714] bio_integrity_payload 0KB 4KB [ 32.747438] khugepaged_mm_slot 0KB 3KB [ 32.752897] uid_cache 0KB 3KB [ 32.758257] dmaengine-unmap-2 0KB 3KB [ 32.763629] audit_buffer 0KB 3KB [ 32.769009] skbuff_fclone_cache 136KB 138KB [ 32.774573] skbuff_head_cache 1671KB 1672KB [ 32.780381] configfs_dir_cache 0KB 4KB [ 32.785833] file_lock_cache 159KB 162KB [ 32.791205] file_lock_ctx 1KB 3KB [ 32.796571] fsnotify_mark_connector 2KB 3KB [ 32.802457] shmem_inode_cache 1046KB 1050KB [ 32.808612] task_delay_info 321KB 339KB [ 32.816283] sigqueue 366KB 370KB [ 32.822171] kernfs_node_cache 2284KB 2287KB [ 32.827549] mnt_cache 15KB 16KB [ 32.832915] filp 8523KB 8906KB [ 32.838300] names_cache 111868KB 111906KB [ 32.843678] avc_node 38KB 43KB [ 32.849068] selinux_file_security 434KB 492KB [ 32.854784] selinux_inode_security 1952KB 1956KB [ 32.860583] key_jar 3KB 7KB [ 32.865943] nsproxy 0KB 3KB [ 32.871316] vm_area_struct 18724KB 18724KB [ 32.876684] mm_struct 4534KB 4539KB [ 32.882048] fs_cache 428KB 432KB [ 32.887424] files_cache 1598KB 1601KB [ 32.892795] signal_cache 2550KB 2558KB [ 32.898161] sighand_cache 249KB 346KB [ 32.903533] task_struct 10878KB 10878KB [ 32.908908] cred_jar 2363KB 2364KB [ 32.914688] anon_vma_chain 7858KB 7859KB [ 32.920048] anon_vma 160KB 369KB [ 32.925421] pid 223KB 240KB [ 32.930792] Acpi-Operand 106KB 170KB [ 32.936158] Acpi-Parse 0KB 3KB [ 32.941534] Acpi-State 0KB 7KB [ 32.946904] Acpi-Namespace 19KB 23KB [ 32.952263] numa_policy 0KB 3KB [ 32.957639] debug_objects_cache 539KB 539KB [ 32.963193] trace_event_file 145KB 147KB [ 32.968562] ftrace_event_field 257KB 259KB [ 32.974028] pool_workqueue 24KB 28KB [ 32.979404] page->ptl 3103KB 3103KB [ 32.984785] kmalloc-262144 1032KB 1032KB [ 32.990146] kmalloc-131072 650KB 650KB [ 32.995519] kmalloc-65536 264KB 264KB [ 33.000891] kmalloc-32768 825KB 825KB [ 33.006253] kmalloc-16384 181KB 181KB [ 33.011629] kmalloc-8192 519KB 519KB [ 33.017007] kmalloc-4096 7220KB 7259KB [ 33.022415] kmalloc-2048 3221KB 3225KB [ 33.027778] kmalloc-1024 3457KB 3457KB [ 33.033152] kmalloc-512 2775KB 2775KB [ 33.038532] kmalloc-256 2013KB 2505KB [ 33.044414] kmalloc-128 407KB 523KB [ 33.050232] kmalloc-96 2044KB 2044KB [ 33.055612] kmalloc-64 2468KB 2468KB [ 33.060983] kmalloc-32 2401KB 2401KB [ 33.066408] kmalloc-192 908KB 908KB [ 33.071767] kmem_cache 101KB 105KB [ 33.077137] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 33.085811] [ 1815] 0 1815 5366 167 94208 0 -1000 udevd [ 33.094623] [ 3354] 0 3354 2493 573 57344 0 0 dhclient [ 33.103058] [ 3505] 0 3505 14298 174 118784 0 0 rsyslogd [ 33.111493] [ 3551] 0 3551 4725 50 86016 0 0 cron [ 33.122262] [ 3578] 0 3578 3736 45 69632 0 0 mcstransd [ 33.130758] [ 3580] 0 3580 12927 1227 131072 0 0 restorecond [ 33.139442] [ 3606] 0 3606 12490 153 139264 0 -1000 sshd [ 33.147527] [ 3630] 0 3630 3694 39 69632 0 0 getty [ 33.157441] [ 3631] 0 3631 3694 41 73728 0 0 getty [ 33.165618] [ 3632] 0 3632 3694 41 73728 0 0 getty [ 33.173769] [ 3633] 0 3633 3694 42 73728 0 0 getty [ 33.181915] [ 3634] 0 3634 3694 41 73728 0 0 getty [ 33.190184] [ 3635] 0 3635 3694 40 77824 0 0 getty [ 33.198353] [ 3636] 0 3636 3649 39 77824 0 0 getty [ 33.206511] [ 3638] 0 3638 5681 454 90112 0 -1000 udevd [ 33.214666] [ 3639] 0 3639 5681 454 90112 0 -1000 udevd [ 33.222823] [ 3656] 0 3656 17821 197 184320 0 0 sshd [ 33.230895] [ 3658] 0 3658 280 1 32768 0 0 syzkaller617356 [ 33.239919] [ 3659] 0 3659 4375 522 36864 0 0 syzkaller617356 [ 33.248946] [ 3660] 0 3660 4375 522 36864 0 0 syzkaller617356 [ 33.257974] [ 3661] 0 3661 4375 522 36864 0 0 syzkaller617356 [ 33.267013] [ 3662] 0 3662 4375 522 36864 0 0 syzkaller617356 [ 33.276072] [ 3663] 0 3663 4375 522 36864 0 0 syzkaller617356 [ 33.285112] [ 3664] 0 3664 4375 522 36864 0 0 syzkaller617356 [ 33.294503] [ 3665] 0 3665 4375 522 36864 0 0 syzkaller617356 [ 33.304758] [ 3666] 0 3666 4375 522 36864 0 0 syzkaller617356 [ 33.313797] Out of memory: Kill process 3580 (restorecond) score 0 or sacrifice child [ 33.322287] Killed process 3580 (restorecond) total-vm:51708kB, anon-rss:4908kB, file-rss:0kB, shmem-rss:0kB [ 33.339266] syzkaller617356 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 33.351658] syzkaller617356 cpuset=/ mems_allowed=0 [ 33.356732] CPU: 0 PID: 3665 Comm: syzkaller617356 Not tainted 4.15.0-rc7+ #191 [ 33.364165] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.373579] Call Trace: [ 33.376146] dump_stack+0x194/0x257 [ 33.379751] ? arch_local_irq_restore+0x53/0x53 [ 33.384395] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 33.389562] dump_header+0x28c/0xe1e [ 33.393256] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 33.398423] ? pagefault_out_of_memory+0x152/0x152 [ 33.403325] ? check_noncircular+0x20/0x20 [ 33.407533] ? print_irqtrace_events+0x270/0x270 [ 33.412267] ? __lock_acquire+0x664/0x3e00 [ 33.416486] ? check_noncircular+0x20/0x20 [ 33.420700] ? find_held_lock+0x35/0x1d0 [ 33.424742] ? check_noncircular+0x20/0x20 [ 33.428953] ? task_will_free_mem+0x252/0xaa0 [ 33.433435] ? print_irqtrace_events+0x270/0x270 [ 33.438168] ? ___ratelimit+0x30d/0x630 [ 33.442114] ? lock_downgrade+0x980/0x980 [ 33.446238] ? lock_release+0xa40/0xa40 [ 33.450189] ? mark_held_locks+0xaf/0x100 [ 33.454328] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 33.459407] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 33.464396] ? trace_hardirqs_on+0xd/0x10 [ 33.468517] ? ___ratelimit+0x95/0x630 [ 33.472379] ? idr_get_free_cmn+0xfd0/0xfd0 [ 33.476674] ? check_noncircular+0x20/0x20 [ 33.480881] ? find_held_lock+0x138/0x1d0 [ 33.485017] oom_kill_process+0x8b5/0x14a0 [ 33.489235] ? has_ns_capability_noaudit+0x163/0x2a0 [ 33.494311] ? lock_downgrade+0x980/0x980 [ 33.498447] ? oom_evaluate_task+0x480/0x480 [ 33.502839] ? security_capable_noaudit+0x8b/0xc0 [ 33.507668] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 33.513006] ? has_capability+0x30/0x30 [ 33.516963] ? do_raw_spin_trylock+0x190/0x190 [ 33.521530] ? check_noncircular+0x20/0x20 [ 33.525744] ? has_capability_noaudit+0x24/0x30 [ 33.530387] ? oom_badness+0xd1/0x980 [ 33.534168] ? lock_release+0xa40/0xa40 [ 33.538114] ? do_try_to_free_pages+0xc53/0x1020 [ 33.542845] ? find_lock_task_mm+0x460/0x460 [ 33.547230] ? find_held_lock+0x35/0x1d0 [ 33.551800] ? out_of_memory+0xb3a/0x1220 [ 33.557523] ? lock_downgrade+0x980/0x980 [ 33.562862] ? lock_release+0xa40/0xa40 [ 33.568152] ? lock_acquire+0x1d5/0x580 [ 33.573573] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 33.579786] ? oom_evaluate_task+0x284/0x480 [ 33.586172] out_of_memory+0x86d/0x1220 [ 33.591007] ? oom_killer_disable+0x310/0x310 [ 33.595480] ? mutex_trylock+0x23a/0x2d0 [ 33.599516] ? __lock_is_held+0xb6/0x140 [ 33.603551] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 33.608982] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 33.613822] ? warn_alloc+0x2b0/0x2b0 [ 33.617597] ? lock_release+0xa40/0xa40 [ 33.621548] ? print_irqtrace_events+0x270/0x270 [ 33.626295] ? mutex_spin_on_owner+0x446/0xb50 [ 33.630860] ? __lock_acquire+0x664/0x3e00 [ 33.635071] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 33.640928] ? lock_release+0xa40/0xa40 [ 33.644897] ? __lock_is_held+0xb6/0x140 [ 33.648948] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 33.654815] ? __might_sleep+0x95/0x190 [ 33.658767] __alloc_pages_nodemask+0x9fb/0xd80 [ 33.664632] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 33.669631] ? pcpu_chunk_refresh_hint+0x425/0x570 [ 33.674543] ? print_irqtrace_events+0x270/0x270 [ 33.679280] ? __lock_is_held+0xb6/0x140 [ 33.683324] ? find_next_bit+0x27/0x30 [ 33.687191] pcpu_populate_chunk+0x1b3/0x880 [ 33.691583] pcpu_alloc+0x978/0x10e0 [ 33.695281] ? pcpu_free_area+0xa00/0xa00 [ 33.699404] ? vmap_page_range_noflush+0x523/0x720 [ 33.704322] ? map_vm_area+0x9e/0xd0 [ 33.708015] ? __vmalloc_node_range+0x37a/0x650 [ 33.712671] ? array_map_alloc+0x351/0xa00 [ 33.716879] ? __vmalloc_node_flags_caller+0x50/0x60 [ 33.721961] __alloc_percpu_gfp+0x27/0x30 [ 33.726083] array_map_alloc+0x778/0xa00 [ 33.730126] SyS_bpf+0x7f8/0x4400 [ 33.733550] ? check_noncircular+0x20/0x20 [ 33.737762] ? bpf_prog_get+0x20/0x20 [ 33.741539] ? perf_event_fork+0x30/0x30 [ 33.745580] ? __lock_is_held+0xb6/0x140 [ 33.749612] ? check_noncircular+0x20/0x20 [ 33.753828] ? __handle_mm_fault+0x80e/0x3ce0 [ 33.758301] ? check_noncircular+0x20/0x20 [ 33.762510] ? __pmd_alloc+0x4e0/0x4e0 [ 33.766369] ? vma_link+0xe9/0x170 [ 33.769888] ? find_held_lock+0x35/0x1d0 [ 33.773940] ? handle_mm_fault+0x248/0x8d0 [ 33.778163] ? find_held_lock+0x35/0x1d0 [ 33.782209] ? __do_page_fault+0x5f7/0xc90 [ 33.786419] ? lock_downgrade+0x980/0x980 [ 33.790552] ? handle_mm_fault+0x410/0x8d0 [ 33.794761] ? down_read_trylock+0xdb/0x170 [ 33.799055] ? __do_page_fault+0x32d/0xc90 [ 33.803266] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 33.807817] ? vmacache_find+0x5f/0x280 [ 33.811763] ? vmacache_update+0xfe/0x130 [ 33.815892] ? up_read+0x1a/0x40 [ 33.819232] ? __do_page_fault+0x3d6/0xc90 [ 33.823449] ? mm_fault_error+0x2c0/0x2c0 [ 33.827582] ? do_page_fault+0xee/0x720 [ 33.831531] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 33.837046] ? __do_page_fault+0xc90/0xc90 [ 33.841262] ? SyS_mmap_pgoff+0x243/0x5f0 [ 33.845394] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 33.851450] entry_SYSCALL_64_fastpath+0x23/0x9a [ 33.856440] RIP: 0033:0x440139 [ 33.859604] RSP: 002b:00007ffccc9e6ab8 EFLAGS: 00000217 ORIG_RAX: 0000000000000141 [ 33.867295] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 0000000000440139 [ 33.874538] RDX: 000000000000002c RSI: 0000000020c47fec RDI: 0000000000000000 [ 33.881781] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 33.889029] R10: 00000000ffffffff R11: 0000000000000217 R12: 00000000004016a0 [ 33.896274] R13: 0000000000401730 R14: 0000000000000000 R15: 0000000000000000 [ 33.903627] Mem-Info: [ 33.906615] active_anon:6657 inactive_anon:63 isolated_anon:0 [ 33.906615] active_file:13 inactive_file:12 isolated_file:0 [ 33.906615] unevictable:0 dirty:0 writeback:0 unstable:0 [ 33.906615] slab_reclaimable:7276 slab_unreclaimable:83651 [ 33.906615] mapped:2 shmem:70 pagetables:322 bounce:0 [ 33.906615] free:24276 free_pcp:299 free_cma:0 [ 33.939309] Node 0 active_anon:26628kB inactive_anon:252kB active_file:52kB inactive_file:48kB 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 [ 33.966237] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 33.994061] lowmem_reserve[]: 0 2870 6381 6381 [ 33.998666] Node 0 DMA32 free:44116kB min:30332kB low:37912kB high:45492kB active_anon:28kB inactive_anon:4kB active_file:8kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2942320kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 34.025947] lowmem_reserve[]: 0 0 3510 3510 [ 34.030289] Node 0 Normal free:37080kB min:37084kB low:46352kB high:55620kB active_anon:26600kB inactive_anon:248kB active_file:44kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3104kB pagetables:1288kB bounce:0kB free_pcp:1196kB local_pcp:792kB free_cma:0kB [ 34.059632] lowmem_reserve[]: 0 0 0 0 [ 34.063478] 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 [ 34.079710] Node 0 DMA32: 7*4kB (UM) 5*8kB (UM) 3*16kB (M) 1*32kB (M) 3*64kB (M) 4*128kB (M) 5*256kB (UM) 4*512kB (UM) 3*1024kB (UM) 2*2048kB (M) 8*4096kB (M) = 44116kB [ 34.094958] Node 0 Normal: 624*4kB (UMEH) 489*8kB (UMEH) 277*16kB (UMEH) 182*32kB (UMH) 73*64kB (UM) 53*128kB (UM) 25*256kB (UM) 5*512kB (UM) 0*1024kB 0*2048kB 0*4096kB = 37080kB [ 34.111110] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 34.119690] 95 total pagecache pages [ 34.123410] 0 pages in swap cache [ 34.126859] Swap cache stats: add 0, delete 0, find 0/0 [ 34.132219] Free swap = 0kB [ 34.135248] Total swap = 0kB [ 34.138258] 1965979 pages RAM [ 34.141353] 0 pages HighMem/MovableOnly [ 34.145318] 327765 pages reserved [ 34.148766] Unreclaimable slab info: [ 34.152476] Name Used Total [ 34.158034] hashtab_node 118KB 119KB [ 34.163407] ebitmap_node 382KB 385KB [ 34.168770] avtab_node 1012KB 1013KB [ 34.174137] TIPC 1KB 7KB [ 34.179508] SCTPv6 2KB 4KB [ 34.184873] DCCPv6 2KB 7KB [ 34.190243] DCCP 2KB 6KB [ 34.196101] fib6_nodes 0KB 4KB [ 34.201496] ip6_dst_cache 5KB 7KB [ 34.206866] RAWv6 9KB 13KB [ 34.212250] UDPv6 12KB 14KB [ 34.217620] TCPv6 2KB 5KB [ 34.223035] sd_ext_cdb 0KB 3KB [ 34.228404] scsi_sense_cache 64KB 120KB [ 34.233775] virtio_scsi_cmd 16KB 16KB [ 34.239162] sgpool-128 8KB 8KB [ 34.244545] sgpool-64 4KB 6KB [ 34.249917] sgpool-32 70KB 70KB [ 34.255310] sgpool-16 26KB 26KB [ 34.260680] sgpool-8 144KB 153KB [ 34.266058] cfq_io_cq 14KB 19KB [ 34.271422] cfq_queue 23KB 27KB [ 34.276799] mqueue_inode_cache 1KB 7KB [ 34.282270] nfs_commit_data 3KB 7KB [ 34.287653] nfs_write_data 34KB 37KB [ 34.293049] jbd2_inode 1KB 3KB [ 34.298431] ext4_system_zone 0KB 3KB [ 34.303804] bio-1 1KB 3KB [ 34.309190] rpc_buffers 17KB 19KB [ 34.314575] rpc_tasks 2KB 3KB [ 34.320216] UNIX 773KB 773KB [ 34.328247] tcp_bind_bucket 0KB 4KB [ 34.333641] ip_fib_trie 0KB 3KB [ 34.339113] ip_fib_alias 0KB 3KB [ 34.344501] ip_dst_cache 3KB 4KB [ 34.349869] RAW 5KB 7KB [ 34.355245] UDP 29KB 31KB [ 34.360804] request_sock_TCP 0KB 3KB [ 34.366173] TCP 7KB 15KB [ 34.371554] hugetlbfs_inode_cache 1KB 7KB [ 34.377287] eventpoll_pwq 10KB 11KB [ 34.382675] eventpoll_epi 19KB 23KB [ 34.388059] inotify_inode_mark 3KB 7KB [ 34.393542] request_queue 53KB 135KB [ 34.398927] blkdev_ioc 20KB 23KB [ 34.404293] bio-0 273KB 273KB [ 34.409665] biovec-(1<<(21-12)) 371KB 371KB [ 34.415221] biovec-64 94KB 94KB [ 34.420608] biovec-16 10KB 15KB [ 34.425992] bio_integrity_payload 0KB 4KB [ 34.431713] khugepaged_mm_slot 0KB 3KB [ 34.437180] uid_cache 0KB 3KB [ 34.442563] dmaengine-unmap-2 0KB 3KB [ 34.447929] audit_buffer 0KB 3KB [ 34.453334] skbuff_fclone_cache 136KB 138KB [ 34.459691] skbuff_head_cache 1671KB 1672KB [ 34.465083] configfs_dir_cache 0KB 4KB [ 34.470555] file_lock_cache 159KB 162KB [ 34.475941] file_lock_ctx 1KB 3KB [ 34.481321] fsnotify_mark_connector 2KB 3KB [ 34.487218] shmem_inode_cache 1046KB 1050KB [ 34.492604] task_delay_info 321KB 339KB [ 34.497996] sigqueue 370KB 370KB [ 34.503371] kernfs_node_cache 2284KB 2287KB [ 34.508753] mnt_cache 15KB 16KB [ 34.514140] filp 8523KB 8906KB [ 34.519559] names_cache 111868KB 111906KB [ 34.524952] avc_node 38KB 43KB [ 34.530318] selinux_file_security 434KB 492KB [ 34.536043] selinux_inode_security 1952KB 1956KB [ 34.541868] key_jar 3KB 7KB [ 34.547235] nsproxy 0KB 3KB [ 34.552607] vm_area_struct 18724KB 18724KB [ 34.557991] mm_struct 4534KB 4539KB [ 34.563364] fs_cache 428KB 432KB [ 34.568736] files_cache 1598KB 1601KB [ 34.574116] signal_cache 2550KB 2558KB [ 34.579498] sighand_cache 249KB 346KB [ 34.584890] task_struct 10878KB 10878KB [ 34.590259] cred_jar 2363KB 2364KB [ 34.596433] anon_vma_chain 7858KB 7859KB [ 34.601818] anon_vma 160KB 369KB [ 34.607184] pid 223KB 240KB [ 34.612558] Acpi-Operand 106KB 170KB [ 34.617939] Acpi-Parse 0KB 3KB [ 34.623308] Acpi-State 0KB 7KB [ 34.628684] Acpi-Namespace 19KB 23KB [ 34.634068] numa_policy 0KB 3KB [ 34.639455] debug_objects_cache 539KB 539KB [ 34.645035] trace_event_file 145KB 147KB [ 34.650412] ftrace_event_field 257KB 259KB [ 34.655868] pool_workqueue 24KB 28KB [ 34.661231] page->ptl 3103KB 3103KB [ 34.666607] kmalloc-262144 1032KB 1032KB [ 34.671968] kmalloc-131072 650KB 650KB [ 34.677326] kmalloc-65536 264KB 264KB [ 34.682688] kmalloc-32768 825KB 825KB [ 34.688055] kmalloc-16384 181KB 181KB [ 34.693416] kmalloc-8192 519KB 519KB [ 34.698777] kmalloc-4096 7220KB 7259KB [ 34.704137] kmalloc-2048 3221KB 3225KB [ 34.709495] kmalloc-1024 3457KB 3457KB [ 34.714863] kmalloc-512 2775KB 2775KB [ 34.720281] kmalloc-256 2013KB 2505KB [ 34.725665] kmalloc-128 407KB 523KB [ 34.731816] kmalloc-96 2048KB 2048KB [ 34.737233] kmalloc-64 2468KB 2468KB [ 34.742623] kmalloc-32 2401KB 2401KB [ 34.748035] kmalloc-192 912KB 912KB [ 34.753423] kmem_cache 101KB 105KB [ 34.758803] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 34.767498] [ 1815] 0 1815 5366 167 94208 0 -1000 udevd [ 34.775668] [ 3354] 0 3354 2493 573 57344 0 0 dhclient [ 34.784106] [ 3505] 0 3505 14298 174 118784 0 0 rsyslogd [ 34.792540] [ 3551] 0 3551 4725 50 86016 0 0 cron [ 34.800622] [ 3578] 0 3578 3736 45 69632 0 0 mcstransd [ 34.809146] [ 3606] 0 3606 12490 153 139264 0 -1000 sshd [ 34.817236] [ 3630] 0 3630 3694 39 69632 0 0 getty [ 34.825424] [ 3631] 0 3631 3694 41 73728 0 0 getty [ 34.833579] [ 3632] 0 3632 3694 41 73728 0 0 getty [ 34.841747] [ 3633] 0 3633 3694 42 73728 0 0 getty [ 34.849911] [ 3634] 0 3634 3694 41 73728 0 0 getty [ 34.858424] [ 3635] 0 3635 3694 40 77824 0 0 getty [ 34.866882] [ 3636] 0 3636 3649 39 77824 0 0 getty [ 34.875053] [ 3638] 0 3638 5681 454 90112 0 -1000 udevd [ 34.883227] [ 3639] 0 3639 5681 454 90112 0 -1000 udevd [ 34.891403] [ 3656] 0 3656 17821 197 184320 0 0 sshd [ 34.899491] [ 3658] 0 3658 280 1 32768 0 0 syzkaller617356 [ 34.908533] [ 3659] 0 3659 4375 522 36864 0 0 syzkaller617356 [ 34.917577] [ 3660] 0 3660 4375 522 36864 0 0 syzkaller617356 [ 34.926623] [ 3661] 0 3661 4375 522 36864 0 0 syzkaller617356 [ 34.935659] [ 3662] 0 3662 4375 522 36864 0 0 syzkaller617356 [ 34.944693] [ 3663] 0 3663 4375 522 36864 0 0 syzkaller617356 [ 34.953733] [ 3664] 0 3664 4375 522 36864 0 0 syzkaller617356 [ 34.962775] [ 3665] 0 3665 4375 522 36864 0 0 syzkaller617356 [ 34.971840] [ 3666] 0 3666 4375 522 36864 0 0 syzkaller617356 [ 34.980887] Out of memory: Kill process 3354 (dhclient) score 0 or sacrifice child [ 34.988768] Killed process 3354 (dhclient) total-vm:9972kB, anon-rss:2292kB, file-rss:0kB, shmem-rss:0kB [ 35.002583] syzkaller617356 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 35.015406] syzkaller617356 cpuset=/ mems_allowed=0 [ 35.020495] CPU: 1 PID: 3659 Comm: syzkaller617356 Not tainted 4.15.0-rc7+ #191 [ 35.027923] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.037253] Call Trace: [ 35.039818] dump_stack+0x194/0x257 [ 35.043421] ? arch_local_irq_restore+0x53/0x53 [ 35.048076] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 35.053257] dump_header+0x28c/0xe1e [ 35.056951] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 35.062115] ? pagefault_out_of_memory+0x152/0x152 [ 35.067032] ? check_noncircular+0x20/0x20 [ 35.071251] ? print_irqtrace_events+0x270/0x270 [ 35.075983] ? __lock_acquire+0x664/0x3e00 [ 35.080192] ? check_noncircular+0x20/0x20 [ 35.084409] ? find_held_lock+0x35/0x1d0 [ 35.088451] ? check_noncircular+0x20/0x20 [ 35.092656] ? task_will_free_mem+0x252/0xaa0 [ 35.097127] ? print_irqtrace_events+0x270/0x270 [ 35.101861] ? ___ratelimit+0x30d/0x630 [ 35.105807] ? lock_downgrade+0x980/0x980 [ 35.109932] ? lock_release+0xa40/0xa40 [ 35.113884] ? mark_held_locks+0xaf/0x100 [ 35.118006] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 35.123090] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 35.128082] ? trace_hardirqs_on+0xd/0x10 [ 35.132220] ? ___ratelimit+0x95/0x630 [ 35.136083] ? idr_get_free_cmn+0xfd0/0xfd0 [ 35.140376] ? check_noncircular+0x20/0x20 [ 35.144582] ? find_held_lock+0x138/0x1d0 [ 35.148708] oom_kill_process+0x8b5/0x14a0 [ 35.152921] ? has_ns_capability_noaudit+0x163/0x2a0 [ 35.157997] ? lock_downgrade+0x980/0x980 [ 35.162128] ? oom_evaluate_task+0x480/0x480 [ 35.166521] ? security_capable_noaudit+0x8b/0xc0 [ 35.172232] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 35.178698] ? has_capability+0x30/0x30 [ 35.182643] ? do_raw_spin_trylock+0x190/0x190 [ 35.187200] ? check_noncircular+0x20/0x20 [ 35.191413] ? has_capability_noaudit+0x24/0x30 [ 35.196060] ? oom_badness+0xd1/0x980 [ 35.199833] ? lock_release+0xa40/0xa40 [ 35.203778] ? do_try_to_free_pages+0xc53/0x1020 [ 35.208510] ? find_lock_task_mm+0x460/0x460 [ 35.212896] ? find_held_lock+0x35/0x1d0 [ 35.216936] ? out_of_memory+0xb3a/0x1220 [ 35.221056] ? lock_downgrade+0x980/0x980 [ 35.225180] ? lock_release+0xa40/0xa40 [ 35.229127] ? lock_acquire+0x1d5/0x580 [ 35.233076] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 35.237984] ? oom_evaluate_task+0x284/0x480 [ 35.242371] out_of_memory+0x86d/0x1220 [ 35.246328] ? oom_killer_disable+0x310/0x310 [ 35.250803] ? mutex_trylock+0x23a/0x2d0 [ 35.254838] ? __lock_is_held+0xb6/0x140 [ 35.258874] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 35.264310] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 35.269151] ? warn_alloc+0x2b0/0x2b0 [ 35.272925] ? lock_release+0xa40/0xa40 [ 35.276875] ? print_irqtrace_events+0x270/0x270 [ 35.281623] ? mutex_spin_on_owner+0x446/0xb50 [ 35.286187] ? __lock_acquire+0x664/0x3e00 [ 35.290399] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 35.296260] ? lock_release+0xa40/0xa40 [ 35.300224] ? __lock_is_held+0xb6/0x140 [ 35.304272] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 35.310127] ? find_held_lock+0x35/0x1d0 [ 35.314168] ? __might_sleep+0x95/0x190 [ 35.318120] __alloc_pages_nodemask+0x9fb/0xd80 [ 35.322768] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 35.327763] ? pcpu_chunk_refresh_hint+0x425/0x570 [ 35.332671] ? print_irqtrace_events+0x270/0x270 [ 35.337669] ? __lock_is_held+0xb6/0x140 [ 35.341711] ? find_next_bit+0x27/0x30 [ 35.345578] pcpu_populate_chunk+0x1b3/0x880 [ 35.349970] pcpu_alloc+0x978/0x10e0 [ 35.353668] ? pcpu_free_area+0xa00/0xa00 [ 35.357805] ? vmap_page_range_noflush+0x523/0x720 [ 35.362721] ? retint_kernel+0x10/0x10 [ 35.366588] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 35.371581] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 35.376317] ? retint_kernel+0x10/0x10 [ 35.380188] __alloc_percpu_gfp+0x27/0x30 [ 35.384311] array_map_alloc+0x778/0xa00 [ 35.388354] SyS_bpf+0x7f8/0x4400 [ 35.391778] ? check_noncircular+0x20/0x20 [ 35.395989] ? bpf_prog_get+0x20/0x20 [ 35.399768] ? perf_event_fork+0x30/0x30 [ 35.403808] ? __lock_is_held+0xb6/0x140 [ 35.407840] ? check_noncircular+0x20/0x20 [ 35.412056] ? __handle_mm_fault+0x80e/0x3ce0 [ 35.416540] ? check_noncircular+0x20/0x20 [ 35.420746] ? __pmd_alloc+0x4e0/0x4e0 [ 35.424607] ? vma_link+0xe9/0x170 [ 35.428125] ? find_held_lock+0x35/0x1d0 [ 35.432166] ? handle_mm_fault+0x248/0x8d0 [ 35.436375] ? find_held_lock+0x35/0x1d0 [ 35.440415] ? __do_page_fault+0x5f7/0xc90 [ 35.444624] ? lock_downgrade+0x980/0x980 [ 35.448762] ? handle_mm_fault+0x410/0x8d0 [ 35.452967] ? down_read_trylock+0xdb/0x170 [ 35.457265] ? __do_page_fault+0x32d/0xc90 [ 35.461474] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 35.466030] ? vmacache_find+0x5f/0x280 [ 35.469978] ? vmacache_update+0xfe/0x130 [ 35.474102] ? up_read+0x1a/0x40 [ 35.477442] ? __do_page_fault+0x3d6/0xc90 [ 35.481655] ? mm_fault_error+0x2c0/0x2c0 [ 35.485785] ? do_page_fault+0xee/0x720 [ 35.489734] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 35.495244] ? __do_page_fault+0xc90/0xc90 [ 35.499463] ? SyS_mmap_pgoff+0x243/0x5f0 [ 35.503591] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 35.508326] entry_SYSCALL_64_fastpath+0x23/0x9a [ 35.513057] RIP: 0033:0x440139 [ 35.516220] RSP: 002b:00007ffccc9e6ab8 EFLAGS: 00000217 ORIG_RAX: 0000000000000141 [ 35.523912] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 0000000000440139 [ 35.531155] RDX: 000000000000002c RSI: 0000000020c47fec RDI: 0000000000000000 [ 35.538398] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 35.545640] R10: 00000000ffffffff R11: 0000000000000217 R12: 00000000004016a0 [ 35.552881] R13: 0000000000401730 R14: 0000000000000000 R15: 0000000000000000 [ 35.560199] Mem-Info: [ 35.562655] active_anon:6107 inactive_anon:63 isolated_anon:0 [ 35.562655] active_file:12 inactive_file:13 isolated_file:0 [ 35.562655] unevictable:0 dirty:0 writeback:0 unstable:0 [ 35.562655] slab_reclaimable:7276 slab_unreclaimable:83651 [ 35.562655] mapped:2 shmem:70 pagetables:322 bounce:0 [ 35.562655] free:24276 free_pcp:367 free_cma:0 [ 35.594820] Node 0 active_anon:24428kB inactive_anon:252kB active_file:48kB 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 [ 35.622534] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 35.648698] lowmem_reserve[]: 0 2870 6381 6381 [ 35.653305] Node 0 DMA32 free:44116kB min:30332kB low:37912kB high:45492kB active_anon:28kB inactive_anon:4kB active_file:0kB inactive_file:8kB unevictable:0kB writepending:0kB present:3129332kB managed:2942320kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 35.680565] lowmem_reserve[]: 0 0 3510 3510 [ 35.684907] Node 0 Normal free:37080kB min:37084kB low:46352kB high:55620kB active_anon:24400kB inactive_anon:248kB active_file:48kB inactive_file:44kB unevictable:0kB writepending:0kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3072kB pagetables:1288kB bounce:0kB free_pcp:1468kB local_pcp:676kB free_cma:0kB [ 35.713821] lowmem_reserve[]: 0 0 0 0 [ 35.717638] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 35.731223] Node 0 DMA32: 7*4kB (UM) 5*8kB (UM) 3*16kB (M) 1*32kB (M) 3*64kB (M) 4*128kB (M) 5*256kB (UM) 4*512kB (UM) 3*1024kB (UM) 2*2048kB (M) 8*4096kB (M) = 44116kB [ 35.746531] Node 0 Normal: 602*4kB (MEH) 506*8kB (MEH) 286*16kB (UMEH) 185*32kB (UMH) 75*64kB (M) 52*128kB (M) 24*256kB (M) 3*512kB (M) 1*1024kB (M) 0*2048kB 0*4096kB = 37112kB [ 35.762481] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 35.771087] 130 total pagecache pages [ 35.777077] 0 pages in swap cache [ 35.780556] Swap cache stats: add 0, delete 0, find 0/0 [ 35.785930] Free swap = 0kB [ 35.788972] Total swap = 0kB [ 35.792031] 1965979 pages RAM [ 35.795137] 0 pages HighMem/MovableOnly [ 35.799233] 327765 pages reserved [ 35.802731] Unreclaimable slab info: [ 35.807428] Name Used Total [ 35.813150] hashtab_node 118KB 119KB [ 35.818605] ebitmap_node 382KB 385KB [ 35.824105] avtab_node 1012KB 1013KB [ 35.830190] TIPC 1KB 7KB [ 35.839786] SCTPv6 2KB 4KB [ 35.845272] DCCPv6 2KB 7KB [ 35.850684] DCCP 2KB 6KB [ 35.856067] fib6_nodes 0KB 4KB [ 35.861799] ip6_dst_cache 5KB 7KB [ 35.867185] RAWv6 9KB 13KB [ 35.873008] UDPv6 12KB 14KB [ 35.878456] TCPv6 2KB 5KB [ 35.883871] sd_ext_cdb 0KB 3KB [ 35.889276] scsi_sense_cache 64KB 120KB [ 35.894689] virtio_scsi_cmd 16KB 16KB [ 35.900106] sgpool-128 8KB 8KB [ 35.905547] sgpool-64 4KB 6KB [ 35.910941] sgpool-32 110KB 110KB [ 35.916345] sgpool-16 37KB 37KB [ 35.921746] sgpool-8 157KB 157KB [ 35.927154] cfq_io_cq 14KB 19KB [ 35.932555] cfq_queue 23KB 27KB [ 35.937956] mqueue_inode_cache 1KB 7KB [ 35.943455] nfs_commit_data 3KB 7KB [ 35.948861] nfs_write_data 34KB 37KB [ 35.954264] jbd2_inode 1KB 3KB [ 35.959666] ext4_system_zone 0KB 3KB [ 35.965065] bio-1 1KB 3KB [ 35.970436] rpc_buffers 17KB 19KB [ 35.975796] rpc_tasks 2KB 3KB [ 35.981184] UNIX 773KB 773KB [ 35.986578] tcp_bind_bucket 0KB 4KB [ 35.991946] ip_fib_trie 0KB 3KB [ 35.997308] ip_fib_alias 0KB 3KB [ 36.002664] ip_dst_cache 3KB 4KB [ 36.008035] RAW 5KB 7KB [ 36.013404] UDP 29KB 31KB [ 36.018791] request_sock_TCP 0KB 3KB [ 36.024193] TCP 7KB 15KB [ 36.029593] hugetlbfs_inode_cache 1KB 7KB [ 36.035339] eventpoll_pwq 10KB 11KB [ 36.040740] eventpoll_epi 19KB 23KB [ 36.046116] inotify_inode_mark 3KB 7KB [ 36.051566] request_queue 53KB 135KB [ 36.056927] blkdev_ioc 23KB 23KB [ 36.062287] bio-0 345KB 345KB [ 36.067786] biovec-(1<<(21-12)) 371KB 371KB [ 36.073356] biovec-64 118KB 118KB [ 36.078761] biovec-16 30KB 30KB [ 36.084161] bio_integrity_payload 0KB 4KB [ 36.089913] khugepaged_mm_slot 0KB 3KB [ 36.095405] uid_cache 0KB 3KB [ 36.100811] dmaengine-unmap-2 0KB 3KB [ 36.106225] audit_buffer 0KB 3KB [ 36.111639] skbuff_fclone_cache 136KB 138KB [ 36.117213] skbuff_head_cache 1671KB 1672KB [ 36.122590] configfs_dir_cache 0KB 4KB [ 36.128043] file_lock_cache 159KB 162KB [ 36.133473] file_lock_ctx 1KB 3KB [ 36.138872] fsnotify_mark_connector 2KB 3KB [ 36.144780] shmem_inode_cache 1046KB 1050KB [ 36.150156] task_delay_info 321KB 339KB [ 36.155518] sigqueue 370KB 370KB [ 36.160889] kernfs_node_cache 2284KB 2287KB [ 36.166263] mnt_cache 15KB 16KB [ 36.171626] filp 8456KB 8868KB [ 36.176981] names_cache 111256KB 111277KB [ 36.182339] avc_node 38KB 43KB [ 36.187695] selinux_file_security 432KB 492KB [ 36.193396] selinux_inode_security 1956KB 1956KB [ 36.199184] key_jar 3KB 7KB [ 36.204540] nsproxy 0KB 3KB [ 36.209929] vm_area_struct 18724KB 18724KB [ 36.215323] mm_struct 4534KB 4539KB [ 36.220723] fs_cache 428KB 432KB [ 36.226123] files_cache 1598KB 1601KB [ 36.231497] signal_cache 2550KB 2558KB [ 36.236885] sighand_cache 249KB 346KB [ 36.242279] task_struct 10878KB 10878KB [ 36.247672] cred_jar 2363KB 2364KB [ 36.253075] anon_vma_chain 7858KB 7859KB [ 36.258477] anon_vma 160KB 369KB [ 36.263855] pid 223KB 240KB [ 36.269224] Acpi-Operand 106KB 170KB [ 36.274602] Acpi-Parse 0KB 3KB [ 36.279980] Acpi-State 0KB 7KB [ 36.285369] Acpi-Namespace 19KB 23KB [ 36.290737] numa_policy 0KB 3KB [ 36.296128] debug_objects_cache 539KB 539KB [ 36.301678] trace_event_file 145KB 147KB [ 36.307055] ftrace_event_field 257KB 259KB [ 36.312517] pool_workqueue 24KB 28KB [ 36.317907] page->ptl 3103KB 3103KB [ 36.323298] kmalloc-262144 1032KB 1032KB [ 36.328680] kmalloc-131072 650KB 650KB [ 36.334054] kmalloc-65536 264KB 264KB [ 36.339439] kmalloc-32768 825KB 825KB [ 36.344814] kmalloc-16384 181KB 181KB [ 36.350178] kmalloc-8192 519KB 519KB [ 36.355567] kmalloc-4096 6948KB 6987KB [ 36.360959] kmalloc-2048 3221KB 3225KB [ 36.366336] kmalloc-1024 3661KB 3661KB [ 36.371732] kmalloc-512 2775KB 2775KB [ 36.377128] kmalloc-256 1996KB 2497KB [ 36.382510] kmalloc-128 407KB 523KB [ 36.387870] kmalloc-96 2056KB 2056KB [ 36.393260] kmalloc-64 2468KB 2468KB [ 36.398658] kmalloc-32 2401KB 2401KB [ 36.404051] kmalloc-192 912KB 912KB [ 36.409419] kmem_cache 101KB 105KB [ 36.414777] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 36.423364] [ 1815] 0 1815 5366 167 94208 0 -1000 udevd [ 36.431511] [ 3505] 0 3505 14298 190 118784 0 0 rsyslogd [ 36.439950] [ 3551] 0 3551 4725 49 86016 0 0 cron [ 36.448054] [ 3578] 0 3578 3736 45 69632 0 0 mcstransd [ 36.456583] [ 3606] 0 3606 12490 153 139264 0 -1000 sshd [ 36.464686] [ 3630] 0 3630 3694 39 69632 0 0 getty [ 36.472855] [ 3631] 0 3631 3694 41 73728 0 0 getty [ 36.481043] [ 3632] 0 3632 3694 41 73728 0 0 getty [ 36.489189] [ 3633] 0 3633 3694 42 73728 0 0 getty [ 36.497329] [ 3634] 0 3634 3694 41 73728 0 0 getty [ 36.505463] [ 3635] 0 3635 3694 40 77824 0 0 getty [ 36.513640] [ 3636] 0 3636 3649 39 77824 0 0 getty [ 36.521826] [ 3638] 0 3638 5681 453 90112 0 -1000 udevd [ 36.530042] [ 3639] 0 3639 5681 454 90112 0 -1000 udevd [ 36.538203] [ 3656] 0 3656 17821 197 184320 0 0 sshd [ 36.546261] [ 3658] 0 3658 280 1 32768 0 0 syzkaller617356 [ 36.555271] [ 3659] 0 3659 4375 522 36864 0 0 syzkaller617356 [ 36.564327] [ 3660] 0 3660 4375 522 36864 0 0 syzkaller617356 [ 36.573386] [ 3661] 0 3661 4375 522 36864 0 0 syzkaller617356 [ 36.582443] [ 3662] 0 3662 4375 522 36864 0 0 syzkaller617356 [ 36.591504] [ 3663] 0 3663 4375 522 36864 0 0 syzkaller617356 [ 36.600563] [ 3664] 0 3664 4375 522 36864 0 0 syzkaller617356 [ 36.609598] [ 3665] 0 3665 4375 522 36864 0 0 syzkaller617356 [ 36.618619] [ 3666] 0 3666 4375 522 36864 0 0 syzkaller617356 [ 36.627629] Out of memory: Kill process 3659 (syzkaller617356) score 0 or sacrifice child [ 36.635956] Killed process 3659 (syzkaller617356) total-vm:17500kB, anon-rss:2088kB, file-rss:0kB, shmem-rss:0kB [ 36.647428] oom_reaper: reaped process 3659 (syzkaller617356), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 36.787353] syzkaller617356 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 36.799754] syzkaller617356 cpuset=/ mems_allowed=0 [ 36.804812] CPU: 1 PID: 3666 Comm: syzkaller617356 Not tainted 4.15.0-rc7+ #191 [ 36.812249] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.822505] Call Trace: [ 36.825091] dump_stack+0x194/0x257 [ 36.828713] ? arch_local_irq_restore+0x53/0x53 [ 36.833375] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 36.838569] dump_header+0x28c/0xe1e [ 36.842288] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 36.847480] ? pagefault_out_of_memory+0x152/0x152 [ 36.852399] ? check_noncircular+0x20/0x20 [ 36.856632] ? print_irqtrace_events+0x270/0x270 [ 36.861383] ? __lock_acquire+0x664/0x3e00 [ 36.865612] ? check_noncircular+0x20/0x20 [ 36.869861] ? find_held_lock+0x35/0x1d0 [ 36.873926] ? check_noncircular+0x20/0x20 [ 36.878152] ? task_will_free_mem+0x252/0xaa0 [ 36.882649] ? print_irqtrace_events+0x270/0x270 [ 36.887406] ? ___ratelimit+0x30d/0x630 [ 36.891377] ? lock_downgrade+0x980/0x980 [ 36.895531] ? lock_release+0xa40/0xa40 [ 36.899505] ? mark_held_locks+0xaf/0x100 [ 36.903644] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 36.908745] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 36.913760] ? trace_hardirqs_on+0xd/0x10 [ 36.917909] ? ___ratelimit+0x95/0x630 [ 36.921794] ? idr_get_free_cmn+0xfd0/0xfd0 [ 36.926108] ? check_noncircular+0x20/0x20 [ 36.930324] ? find_held_lock+0x138/0x1d0 [ 36.934453] oom_kill_process+0x8b5/0x14a0 [ 36.938666] ? has_ns_capability_noaudit+0x163/0x2a0 [ 36.943744] ? lock_downgrade+0x980/0x980 [ 36.947868] ? oom_evaluate_task+0x480/0x480 [ 36.952259] ? security_capable_noaudit+0x8b/0xc0 [ 36.957077] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 36.962153] ? has_capability+0x30/0x30 [ 36.966103] ? do_raw_spin_trylock+0x190/0x190 [ 36.970660] ? check_noncircular+0x20/0x20 [ 36.974892] ? has_capability_noaudit+0x24/0x30 [ 36.979559] ? oom_badness+0xd1/0x980 [ 36.983356] ? lock_release+0xa40/0xa40 [ 36.987322] ? do_try_to_free_pages+0xc53/0x1020 [ 36.992061] ? find_lock_task_mm+0x460/0x460 [ 36.996452] ? find_held_lock+0x35/0x1d0 [ 37.000497] ? out_of_memory+0xb3a/0x1220 [ 37.004619] ? lock_downgrade+0x980/0x980 [ 37.008744] ? lock_release+0xa40/0xa40 [ 37.012691] ? lock_acquire+0x1d5/0x580 [ 37.016639] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 37.021549] ? oom_evaluate_task+0x284/0x480 [ 37.025935] out_of_memory+0x86d/0x1220 [ 37.029880] ? trace_hardirqs_on+0xd/0x10 [ 37.034013] ? oom_killer_disable+0x310/0x310 [ 37.038484] ? mutex_trylock+0x23a/0x2d0 [ 37.042520] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 37.047940] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 37.053805] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 37.058642] ? warn_alloc+0x2b0/0x2b0 [ 37.062415] ? check_noncircular+0x20/0x20 [ 37.066625] ? check_preempt_wakeup+0x426/0xb20 [ 37.071277] ? lock_release+0xa40/0xa40 [ 37.075227] ? print_irqtrace_events+0x270/0x270 [ 37.079992] ? lock_acquire+0x1d5/0x580 [ 37.083943] ? lock_acquire+0x1d5/0x580 [ 37.087894] ? __lock_acquire+0x664/0x3e00 [ 37.092105] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 37.097971] ? lock_release+0xa40/0xa40 [ 37.101949] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 37.107813] ? __might_sleep+0x95/0x190 [ 37.111765] __alloc_pages_nodemask+0x9fb/0xd80 [ 37.116404] ? lock_release+0xa40/0xa40 [ 37.120353] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 37.125346] ? pcpu_chunk_refresh_hint+0x425/0x570 [ 37.130251] ? print_irqtrace_events+0x270/0x270 [ 37.134983] ? __lock_is_held+0xb6/0x140 [ 37.139035] ? find_next_bit+0x27/0x30 [ 37.142901] pcpu_populate_chunk+0x1b3/0x880 [ 37.147294] pcpu_alloc+0x978/0x10e0 [ 37.151003] ? pcpu_free_area+0xa00/0xa00 [ 37.155148] ? vmap_page_range_noflush+0x523/0x720 [ 37.160066] ? map_vm_area+0x9e/0xd0 [ 37.163756] ? __vmalloc_node_range+0x37a/0x650 [ 37.168407] ? array_map_alloc+0x351/0xa00 [ 37.172617] ? __vmalloc_node_flags_caller+0x50/0x60 [ 37.177698] __alloc_percpu_gfp+0x27/0x30 [ 37.181834] array_map_alloc+0x778/0xa00 [ 37.185876] SyS_bpf+0x7f8/0x4400 [ 37.189299] ? check_noncircular+0x20/0x20 [ 37.193510] ? bpf_prog_get+0x20/0x20 [ 37.197289] ? perf_event_fork+0x30/0x30 [ 37.201330] ? __lock_is_held+0xb6/0x140 [ 37.205363] ? check_noncircular+0x20/0x20 [ 37.209575] ? __handle_mm_fault+0x80e/0x3ce0 [ 37.214050] ? check_noncircular+0x20/0x20 [ 37.218254] ? __pmd_alloc+0x4e0/0x4e0 [ 37.222114] ? vma_link+0xe9/0x170 [ 37.225640] ? find_held_lock+0x35/0x1d0 [ 37.229680] ? handle_mm_fault+0x248/0x8d0 [ 37.233890] ? find_held_lock+0x35/0x1d0 [ 37.237932] ? __do_page_fault+0x5f7/0xc90 [ 37.242142] ? lock_downgrade+0x980/0x980 [ 37.246268] ? handle_mm_fault+0x410/0x8d0 [ 37.250472] ? down_read_trylock+0xdb/0x170 [ 37.254764] ? __do_page_fault+0x32d/0xc90 [ 37.258973] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 37.263525] ? vmacache_find+0x5f/0x280 [ 37.267471] ? vmacache_update+0xfe/0x130 [ 37.271595] ? up_read+0x1a/0x40 [ 37.274932] ? __do_page_fault+0x3d6/0xc90 [ 37.279148] ? mm_fault_error+0x2c0/0x2c0 [ 37.283279] ? do_page_fault+0xee/0x720 [ 37.287226] ? __do_page_fault+0xc90/0xc90 [ 37.291439] ? SyS_mmap_pgoff+0x243/0x5f0 [ 37.295570] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 37.300316] entry_SYSCALL_64_fastpath+0x23/0x9a [ 37.305043] RIP: 0033:0x440139 [ 37.308204] RSP: 002b:00007ffccc9e6ab8 EFLAGS: 00000217 ORIG_RAX: 0000000000000141 [ 37.315885] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 0000000000440139 [ 37.323127] RDX: 000000000000002c RSI: 0000000020c47fec RDI: 0000000000000000 [ 37.330371] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 37.337612] R10: 00000000ffffffff R11: 0000000000000217 R12: 00000000004016a0 [ 37.344866] R13: 0000000000401730 R14: 0000000000000000 R15: 0000000000000000 [ 37.352186] Mem-Info: [ 37.354620] active_anon:5603 inactive_anon:62 isolated_anon:0 [ 37.354620] active_file:21 inactive_file:0 isolated_file:0 [ 37.354620] unevictable:0 dirty:0 writeback:0 unstable:0 [ 37.354620] slab_reclaimable:7310 slab_unreclaimable:83214 [ 37.354620] mapped:2 shmem:70 pagetables:312 bounce:0 [ 37.354620] free:24176 free_pcp:0 free_cma:0 [ 37.386487] Node 0 active_anon:22412kB inactive_anon:248kB active_file:84kB 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: 14336kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 37.413310] 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 [ 37.439436] lowmem_reserve[]: 0 2870 6381 6381 [ 37.444036] Node 0 DMA32 free:44124kB min:30332kB low:37912kB high:45492kB active_anon:32kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2942320kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 37.471295] lowmem_reserve[]: 0 0 3510 3510 [ 37.475622] Node 0 Normal free:36672kB min:37084kB low:46352kB high:55620kB active_anon:22380kB inactive_anon:248kB active_file:208kB inactive_file:0kB unevictable:0kB writepending:0kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3072kB pagetables:1248kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 37.504091] lowmem_reserve[]: 0 0 0 0 [ 37.507902] 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 [ 37.521477] Node 0 DMA32: 7*4kB (UM) 6*8kB (UM) 3*16kB (M) 1*32kB (M) 3*64kB (M) 4*128kB (M) 5*256kB (UM) 4*512kB (UM) 3*1024kB (UM) 2*2048kB (M) 8*4096kB (M) = 44124kB [ 37.536706] Node 0 Normal: 475*4kB (M) 440*8kB (ME) 276*16kB (ME) 192*32kB (ME) 85*64kB (ME) 53*128kB (M) 23*256kB (M) 4*512kB (M) 1*1024kB (E) 0*2048kB 0*4096kB = 37164kB [ 37.552196] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 37.560762] 105 total pagecache pages [ 37.564554] 0 pages in swap cache [ 37.567998] Swap cache stats: add 0, delete 0, find 0/0 [ 37.573359] Free swap = 0kB [ 37.576363] Total swap = 0kB [ 37.579369] 1965979 pages RAM [ 37.582461] 0 pages HighMem/MovableOnly [ 37.586424] 327765 pages reserved [ 37.589863] Unreclaimable slab info: [ 37.593564] Name Used Total [ 37.599101] hashtab_node 118KB 119KB [ 37.604462] ebitmap_node 382KB 385KB [ 37.609847] avtab_node 1012KB 1013KB [ 37.615221] TIPC 1KB 7KB [ 37.620584] SCTPv6 2KB 4KB [ 37.625939] DCCPv6 2KB 7KB [ 37.631295] DCCP 2KB 6KB [ 37.636664] fib6_nodes 0KB 4KB [ 37.642024] ip6_dst_cache 5KB 7KB [ 37.647380] RAWv6 9KB 13KB [ 37.652731] UDPv6 12KB 14KB [ 37.658084] TCPv6 2KB 5KB [ 37.663457] sd_ext_cdb 0KB 3KB [ 37.668808] scsi_sense_cache 120KB 120KB [ 37.674156] virtio_scsi_cmd 16KB 16KB [ 37.679507] sgpool-128 8KB 8KB [ 37.684865] sgpool-64 4KB 6KB [ 37.690219] sgpool-32 338KB 338KB [ 37.695570] sgpool-16 78KB 78KB [ 37.700930] sgpool-8 236KB 236KB [ 37.706283] cfq_io_cq 17KB 19KB [ 37.711651] cfq_queue 27KB 27KB [ 37.717048] mqueue_inode_cache 1KB 7KB [ 37.722515] nfs_commit_data 3KB 7KB [ 37.727950] nfs_write_data 34KB 37KB [ 37.733320] jbd2_inode 1KB 3KB [ 37.738673] ext4_system_zone 0KB 3KB [ 37.744028] bio-1 1KB 3KB [ 37.749382] rpc_buffers 17KB 19KB [ 37.754730] rpc_tasks 2KB 3KB [ 37.760080] UNIX 773KB 773KB [ 37.765440] tcp_bind_bucket 0KB 4KB [ 37.770791] ip_fib_trie 0KB 3KB [ 37.776141] ip_fib_alias 0KB 3KB [ 37.781492] ip_dst_cache 3KB 4KB [ 37.786840] RAW 5KB 7KB [ 37.792190] UDP 29KB 31KB [ 37.797550] request_sock_TCP 0KB 3KB [ 37.802901] TCP 7KB 15KB [ 37.808257] hugetlbfs_inode_cache 1KB 7KB [ 37.813960] eventpoll_pwq 10KB 11KB [ 37.819308] eventpoll_epi 19KB 23KB [ 37.824676] inotify_inode_mark 3KB 7KB [ 37.830117] request_queue 42KB 113KB [ 37.835510] blkdev_ioc 23KB 23KB [ 37.840890] bio-0 480KB 480KB [ 37.846268] biovec-(1<<(21-12)) 437KB 437KB [ 37.851817] biovec-64 338KB 338KB [ 37.857194] biovec-16 60KB 60KB [ 37.862567] bio_integrity_payload 0KB 4KB [ 37.868270] khugepaged_mm_slot 0KB 3KB [ 37.873709] uid_cache 0KB 3KB [ 37.879059] dmaengine-unmap-2 0KB 3KB [ 37.884411] audit_buffer 0KB 3KB [ 37.889760] skbuff_fclone_cache 136KB 138KB [ 37.895302] skbuff_head_cache 1671KB 1672KB [ 37.900654] configfs_dir_cache 0KB 4KB [ 37.906098] file_lock_cache 159KB 162KB [ 37.911451] file_lock_ctx 1KB 3KB [ 37.916801] fsnotify_mark_connector 2KB 3KB [ 37.922684] shmem_inode_cache 1046KB 1050KB [ 37.928049] task_delay_info 320KB 339KB [ 37.933402] sigqueue 368KB 370KB [ 37.938779] kernfs_node_cache 2284KB 2287KB [ 37.944159] mnt_cache 15KB 16KB [ 37.949538] filp 8354KB 8805KB [ 37.954916] names_cache 110738KB 110776KB [ 37.960298] avc_node 38KB 43KB [ 37.965677] selinux_file_security 425KB 492KB [ 37.971394] selinux_inode_security 1955KB 1956KB [ 37.977206] key_jar 3KB 7KB [ 37.982589] nsproxy 0KB 3KB [ 37.987980] vm_area_struct 18724KB 18724KB [ 37.993368] mm_struct 4534KB 4539KB [ 37.998761] fs_cache 427KB 432KB [ 38.004148] files_cache 1598KB 1601KB [ 38.009529] signal_cache 2550KB 2558KB [ 38.014908] sighand_cache 233KB 333KB [ 38.020293] task_struct 10884KB 10884KB [ 38.025685] cred_jar 2363KB 2364KB [ 38.031063] anon_vma_chain 7855KB 7859KB [ 38.036445] anon_vma 149KB 362KB [ 38.041825] pid 222KB 240KB [ 38.047210] Acpi-Operand 106KB 170KB [ 38.052593] Acpi-State 0KB 3KB [ 38.057972] Acpi-Namespace 19KB 23KB [ 38.063345] numa_policy 0KB 3KB [ 38.068735] debug_objects_cache 537KB 539KB [ 38.074296] trace_event_file 145KB 147KB [ 38.079675] ftrace_event_field 257KB 259KB [ 38.085142] pool_workqueue 24KB 28KB [ 38.090523] page->ptl 3100KB 3103KB [ 38.095907] kmalloc-262144 1032KB 1032KB [ 38.101290] kmalloc-131072 650KB 650KB [ 38.106673] kmalloc-65536 264KB 264KB [ 38.112050] kmalloc-32768 825KB 825KB [ 38.117433] kmalloc-16384 181KB 181KB [ 38.122801] kmalloc-8192 519KB 519KB [ 38.128173] kmalloc-4096 6702KB 6740KB [ 38.133565] kmalloc-2048 3221KB 3225KB [ 38.138939] kmalloc-1024 3945KB 3945KB [ 38.144312] kmalloc-512 2775KB 2775KB [ 38.149692] kmalloc-256 1962KB 2482KB [ 38.155075] kmalloc-128 405KB 523KB [ 38.160452] kmalloc-96 2060KB 2060KB [ 38.165834] kmalloc-64 2472KB 2472KB [ 38.171202] kmalloc-32 2401KB 2401KB [ 38.176578] kmalloc-192 912KB 912KB [ 38.181967] kmem_cache 101KB 105KB [ 38.187331] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 38.195946] [ 1815] 0 1815 5366 167 94208 0 -1000 udevd [ 38.204119] [ 3505] 0 3505 14298 218 118784 0 0 rsyslogd [ 38.212533] [ 3551] 0 3551 4725 49 86016 0 0 cron [ 38.220608] [ 3578] 0 3578 3736 45 69632 0 0 mcstransd [ 38.229107] [ 3606] 0 3606 12490 153 139264 0 -1000 sshd [ 38.237189] [ 3630] 0 3630 3694 39 69632 0 0 getty [ 38.245353] [ 3631] 0 3631 3694 41 73728 0 0 getty [ 38.253535] [ 3632] 0 3632 3694 41 73728 0 0 getty [ 38.261692] [ 3633] 0 3633 3694 42 73728 0 0 getty [ 38.269861] [ 3634] 0 3634 3694 41 73728 0 0 getty [ 38.278045] [ 3635] 0 3635 3694 40 77824 0 0 getty [ 38.286225] [ 3636] 0 3636 3649 39 77824 0 0 getty [ 38.294379] [ 3638] 0 3638 5681 455 90112 0 -1000 udevd [ 38.302542] [ 3639] 0 3639 5681 454 90112 0 -1000 udevd [ 38.310713] [ 3656] 0 3656 17821 197 184320 0 0 sshd [ 38.318794] [ 3658] 0 3658 280 1 32768 0 0 syzkaller617356 [ 38.327814] [ 3659] 0 3659 4375 0 32768 0 0 syzkaller617356 [ 38.336844] [ 3660] 0 3660 4375 522 36864 0 0 syzkaller617356 [ 38.345881] [ 3661] 0 3661 4375 522 36864 0 0 syzkaller617356 [ 38.354919] [ 3662] 0 3662 4375 522 36864 0 0 syzkaller617356 [ 38.363953] [ 3663] 0 3663 4375 522 36864 0 0 syzkaller617356 [ 38.372989] [ 3664] 0 3664 4375 522 36864 0 0 syzkaller617356 [ 38.382051] [ 3665] 0 3665 4375 522 36864 0 0 syzkaller617356 [ 38.391076] [ 3666] 0 3666 4375 522 36864 0 0 syzkaller617356 [ 38.400106] Out of memory: Kill process 3660 (syzkaller617356) score 0 or sacrifice child [ 38.408459] Killed process 3660 (syzkaller617356) total-vm:17500kB, anon-rss:2088kB, file-rss:0kB, shmem-rss:0kB [ 38.420989] oom_reaper: reaped process 3660 (syzkaller617356), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 38.435318] syzkaller617356 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 38.447712] syzkaller617356 cpuset=/ mems_allowed=0 [ 38.452760] CPU: 1 PID: 3664 Comm: syzkaller617356 Not tainted 4.15.0-rc7+ #191 [ 38.460186] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.469532] Call Trace: [ 38.472121] dump_stack+0x194/0x257 [ 38.475748] ? arch_local_irq_restore+0x53/0x53 [ 38.480408] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 38.485598] dump_header+0x28c/0xe1e [ 38.489316] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 38.494496] ? pagefault_out_of_memory+0x152/0x152 [ 38.499410] ? check_noncircular+0x20/0x20 [ 38.503641] ? print_irqtrace_events+0x270/0x270 [ 38.508387] ? __lock_acquire+0x664/0x3e00 [ 38.512604] ? check_noncircular+0x20/0x20 [ 38.516824] ? find_held_lock+0x35/0x1d0 [ 38.520891] ? check_noncircular+0x20/0x20 [ 38.525114] ? task_will_free_mem+0x252/0xaa0 [ 38.529786] ? print_irqtrace_events+0x270/0x270 [ 38.534536] ? ___ratelimit+0x30d/0x630 [ 38.538496] ? lock_downgrade+0x980/0x980 [ 38.542625] ? lock_release+0xa40/0xa40 [ 38.546586] ? mark_held_locks+0xaf/0x100 [ 38.550715] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 38.555808] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 38.560811] ? trace_hardirqs_on+0xd/0x10 [ 38.564941] ? ___ratelimit+0x95/0x630 [ 38.568810] ? idr_get_free_cmn+0xfd0/0xfd0 [ 38.573118] ? check_noncircular+0x20/0x20 [ 38.577343] ? find_held_lock+0x138/0x1d0 [ 38.581499] oom_kill_process+0x8b5/0x14a0 [ 38.585739] ? has_ns_capability_noaudit+0x163/0x2a0 [ 38.590830] ? lock_downgrade+0x980/0x980 [ 38.594961] ? oom_evaluate_task+0x480/0x480 [ 38.599378] ? security_capable_noaudit+0x8b/0xc0 [ 38.604222] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 38.609320] ? has_capability+0x30/0x30 [ 38.613287] ? do_raw_spin_trylock+0x190/0x190 [ 38.617867] ? check_noncircular+0x20/0x20 [ 38.622111] ? has_capability_noaudit+0x24/0x30 [ 38.626771] ? oom_badness+0xd1/0x980 [ 38.630549] ? lock_release+0xa40/0xa40 [ 38.634502] ? do_try_to_free_pages+0xc53/0x1020 [ 38.639249] ? find_lock_task_mm+0x460/0x460 [ 38.643659] ? find_held_lock+0x35/0x1d0 [ 38.647730] ? out_of_memory+0xb3a/0x1220 [ 38.651874] ? lock_downgrade+0x980/0x980 [ 38.656025] ? lock_release+0xa40/0xa40 [ 38.659987] ? lock_acquire+0x1d5/0x580 [ 38.663957] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 38.668879] ? oom_evaluate_task+0x284/0x480 [ 38.673280] out_of_memory+0x86d/0x1220 [ 38.677261] ? oom_killer_disable+0x310/0x310 [ 38.681745] ? mutex_trylock+0x23a/0x2d0 [ 38.685804] ? __lock_is_held+0xb6/0x140 [ 38.689858] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 38.695320] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 38.700205] ? warn_alloc+0x2b0/0x2b0 [ 38.703997] ? check_noncircular+0x20/0x20 [ 38.708240] ? print_irqtrace_events+0x270/0x270 [ 38.712985] ? check_noncircular+0x20/0x20 [ 38.717201] ? find_held_lock+0x35/0x1d0 [ 38.721264] ? lock_acquire+0x1d5/0x580 [ 38.725227] ? lock_acquire+0x1d5/0x580 [ 38.729201] ? __lock_acquire+0x664/0x3e00 [ 38.733434] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 38.739314] ? lock_release+0xa40/0xa40 [ 38.743346] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 38.749241] ? __might_sleep+0x95/0x190 [ 38.753222] __alloc_pages_nodemask+0x9fb/0xd80 [ 38.757902] ? lock_release+0xa40/0xa40 [ 38.761875] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 38.766894] ? pcpu_chunk_refresh_hint+0x425/0x570 [ 38.771820] ? print_irqtrace_events+0x270/0x270 [ 38.776580] ? __lock_is_held+0xb6/0x140 [ 38.780644] ? find_next_bit+0x27/0x30 [ 38.784528] pcpu_populate_chunk+0x1b3/0x880 [ 38.788954] pcpu_alloc+0x978/0x10e0 [ 38.792678] ? pcpu_free_area+0xa00/0xa00 [ 38.796821] ? vmap_page_range_noflush+0x523/0x720 [ 38.801760] ? retint_kernel+0x10/0x10 [ 38.805642] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 38.810648] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 38.815407] ? retint_kernel+0x10/0x10 [ 38.819314] __alloc_percpu_gfp+0x27/0x30 [ 38.823456] array_map_alloc+0x778/0xa00 [ 38.827522] SyS_bpf+0x7f8/0x4400 [ 38.830972] ? check_noncircular+0x20/0x20 [ 38.835206] ? bpf_prog_get+0x20/0x20 [ 38.839003] ? perf_event_fork+0x30/0x30 [ 38.843072] ? __lock_is_held+0xb6/0x140 [ 38.847121] ? check_noncircular+0x20/0x20 [ 38.851355] ? __handle_mm_fault+0x80e/0x3ce0 [ 38.855851] ? check_noncircular+0x20/0x20 [ 38.860074] ? __pmd_alloc+0x4e0/0x4e0 [ 38.863952] ? vma_link+0xe9/0x170 [ 38.867494] ? find_held_lock+0x35/0x1d0 [ 38.871559] ? handle_mm_fault+0x248/0x8d0 [ 38.875790] ? find_held_lock+0x35/0x1d0 [ 38.879853] ? __do_page_fault+0x5f7/0xc90 [ 38.884078] ? lock_downgrade+0x980/0x980 [ 38.888229] ? handle_mm_fault+0x410/0x8d0 [ 38.892448] ? down_read_trylock+0xdb/0x170 [ 38.896757] ? __do_page_fault+0x32d/0xc90 [ 38.900981] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 38.905554] ? vmacache_find+0x5f/0x280 [ 38.909515] ? vmacache_update+0xfe/0x130 [ 38.913662] ? up_read+0x1a/0x40 [ 38.917022] ? __do_page_fault+0x3d6/0xc90 [ 38.921261] ? mm_fault_error+0x2c0/0x2c0 [ 38.925419] ? do_page_fault+0xee/0x720 [ 38.929385] ? __do_page_fault+0xc90/0xc90 [ 38.933625] ? SyS_mmap_pgoff+0x243/0x5f0 [ 38.937784] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 38.942544] entry_SYSCALL_64_fastpath+0x23/0x9a [ 38.947287] RIP: 0033:0x440139 [ 38.950461] RSP: 002b:00007ffccc9e6ab8 EFLAGS: 00000217 ORIG_RAX: 0000000000000141 [ 38.958157] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 0000000000440139 [ 38.965415] RDX: 000000000000002c RSI: 0000000020c47fec RDI: 0000000000000000 [ 38.972674] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 38.979930] R10: 00000000ffffffff R11: 0000000000000217 R12: 00000000004016a0 [ 38.987187] R13: 0000000000401730 R14: 0000000000000000 R15: 0000000000000000 [ 38.994568] Mem-Info: [ 38.997308] active_anon:5086 inactive_anon:62 isolated_anon:0 [ 38.997308] active_file:17 inactive_file:17 isolated_file:0 [ 38.997308] unevictable:0 dirty:0 writeback:0 unstable:0 [ 38.997308] slab_reclaimable:7311 slab_unreclaimable:83225 [ 38.997308] mapped:2 shmem:70 pagetables:311 bounce:0 [ 38.997308] free:24245 free_pcp:97 free_cma:0 [ 39.029380] Node 0 active_anon:20344kB inactive_anon:248kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 12288kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 39.056293] 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 [ 39.082437] lowmem_reserve[]: 0 2870 6381 6381 [ 39.087055] Node 0 DMA32 free:44124kB min:30332kB low:37912kB high:45492kB active_anon:32kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2942320kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 39.114329] lowmem_reserve[]: 0 0 3510 3510 [ 39.118690] Node 0 Normal free:36948kB min:37084kB low:46352kB high:55620kB active_anon:20312kB inactive_anon:248kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:0kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3072kB pagetables:1244kB bounce:0kB free_pcp:388kB local_pcp:132kB free_cma:0kB [ 39.147542] lowmem_reserve[]: 0 0 0 0 [ 39.151380] 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 [ 39.165033] Node 0 DMA32: 7*4kB (UM) 6*8kB (UM) 3*16kB (M) 1*32kB (M) 3*64kB (M) 4*128kB (M) 5*256kB (UM) 4*512kB (UM) 3*1024kB (UM) 2*2048kB (M) 8*4096kB (M) = 44124kB [ 39.180345] Node 0 Normal: 445*4kB (UM) 444*8kB (UME) 272*16kB (UME) 190*32kB (M) 84*64kB (M) 54*128kB (UM) 23*256kB (M) 4*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 37012kB [ 39.196089] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 39.204682] 104 total pagecache pages [ 39.208504] 0 pages in swap cache [ 39.211986] Swap cache stats: add 0, delete 0, find 0/0 [ 39.217361] Free swap = 0kB [ 39.220390] Total swap = 0kB [ 39.223418] 1965979 pages RAM [ 39.226535] 0 pages HighMem/MovableOnly [ 39.230519] 327765 pages reserved [ 39.233988] Unreclaimable slab info: [ 39.237716] Name Used Total [ 39.243269] hashtab_node 118KB 119KB [ 39.248649] ebitmap_node 382KB 385KB [ 39.254042] avtab_node 1012KB 1013KB [ 39.259424] TIPC 1KB 7KB [ 39.264806] SCTPv6 2KB 4KB [ 39.270188] DCCPv6 2KB 7KB [ 39.275570] DCCP 2KB 6KB [ 39.280966] fib6_nodes 0KB 4KB [ 39.286351] ip6_dst_cache 5KB 7KB [ 39.291730] RAWv6 9KB 13KB [ 39.297108] UDPv6 12KB 14KB [ 39.302486] TCPv6 2KB 5KB [ 39.307879] sd_ext_cdb 0KB 3KB [ 39.313259] scsi_sense_cache 120KB 120KB [ 39.318634] virtio_scsi_cmd 16KB 16KB [ 39.324039] sgpool-128 8KB 8KB [ 39.329414] sgpool-64 4KB 6KB [ 39.334796] sgpool-32 338KB 338KB [ 39.340181] sgpool-16 78KB 78KB [ 39.345559] sgpool-8 240KB 240KB [ 39.350937] cfq_io_cq 16KB 19KB [ 39.356316] cfq_queue 25KB 27KB [ 39.361695] mqueue_inode_cache 1KB 7KB [ 39.367158] nfs_commit_data 3KB 7KB [ 39.372535] nfs_write_data 34KB 37KB [ 39.377913] jbd2_inode 1KB 3KB [ 39.383303] ext4_system_zone 0KB 3KB [ 39.388692] bio-1 1KB 3KB [ 39.394079] rpc_buffers 17KB 19KB [ 39.399455] rpc_tasks 2KB 3KB [ 39.404833] UNIX 773KB 773KB [ 39.410214] tcp_bind_bucket 0KB 4KB [ 39.415595] ip_fib_trie 0KB 3KB [ 39.421005] ip_fib_alias 0KB 3KB [ 39.426401] ip_dst_cache 3KB 4KB [ 39.431777] RAW 5KB 7KB [ 39.437152] UDP 29KB 31KB [ 39.442528] request_sock_TCP 0KB 3KB [ 39.447903] TCP 7KB 15KB [ 39.453278] hugetlbfs_inode_cache 1KB 7KB [ 39.459030] eventpoll_pwq 10KB 11KB [ 39.464409] eventpoll_epi 19KB 23KB [ 39.469789] inotify_inode_mark 3KB 7KB [ 39.475255] request_queue 42KB 113KB [ 39.480628] blkdev_ioc 22KB 23KB [ 39.486034] bio-0 483KB 483KB [ 39.491413] biovec-(1<<(21-12)) 437KB 437KB [ 39.496968] biovec-64 346KB 346KB [ 39.502345] biovec-16 60KB 60KB [ 39.507720] bio_integrity_payload 0KB 4KB [ 39.513448] khugepaged_mm_slot 0KB 3KB [ 39.518915] uid_cache 0KB 3KB [ 39.524292] dmaengine-unmap-2 0KB 3KB [ 39.529670] audit_buffer 0KB 3KB [ 39.535049] skbuff_fclone_cache 136KB 138KB [ 39.540598] skbuff_head_cache 1670KB 1672KB [ 39.545981] configfs_dir_cache 0KB 4KB [ 39.551449] file_lock_cache 159KB 162KB [ 39.556827] file_lock_ctx 1KB 3KB [ 39.562203] fsnotify_mark_connector 2KB 3KB [ 39.568104] shmem_inode_cache 1046KB 1050KB [ 39.573481] task_delay_info 319KB 339KB [ 39.578861] sigqueue 366KB 370KB [ 39.584238] kernfs_node_cache 2284KB 2287KB [ 39.589614] mnt_cache 15KB 16KB [ 39.594992] filp 8340KB 8790KB [ 39.600379] names_cache 110721KB 110759KB [ 39.605761] avc_node 37KB 43KB [ 39.611136] selinux_file_security 424KB 492KB [ 39.616882] selinux_inode_security 1952KB 1956KB [ 39.622701] key_jar 3KB 7KB [ 39.628077] nsproxy 0KB 3KB [ 39.633457] vm_area_struct 18721KB 18724KB [ 39.638834] mm_struct 4526KB 4539KB [ 39.644211] fs_cache 426KB 432KB [ 39.649586] files_cache 1596KB 1601KB [ 39.654970] signal_cache 2542KB 2558KB [ 39.660344] sighand_cache 231KB 333KB [ 39.665717] task_struct 10871KB 10884KB [ 39.671102] cred_jar 2357KB 2364KB [ 39.676478] anon_vma_chain 7853KB 7859KB [ 39.681957] anon_vma 143KB 362KB [ 39.687333] pid 221KB 240KB [ 39.692708] Acpi-Operand 106KB 170KB [ 39.698086] Acpi-State 0KB 3KB [ 39.703463] Acpi-Namespace 19KB 23KB [ 39.708844] numa_policy 0KB 3KB [ 39.714218] debug_objects_cache 537KB 539KB [ 39.719765] trace_event_file 145KB 147KB [ 39.725138] ftrace_event_field 257KB 259KB [ 39.730606] pool_workqueue 24KB 28KB [ 39.735985] page->ptl 3098KB 3103KB [ 39.741384] kmalloc-262144 1032KB 1032KB [ 39.746758] kmalloc-131072 650KB 650KB [ 39.752134] kmalloc-65536 264KB 264KB [ 39.757510] kmalloc-32768 825KB 825KB [ 39.762887] kmalloc-16384 181KB 181KB [ 39.768265] kmalloc-8192 519KB 519KB [ 39.773642] kmalloc-4096 6685KB 6723KB [ 39.779037] kmalloc-2048 3221KB 3225KB [ 39.784419] kmalloc-1024 3945KB 3945KB [ 39.789797] kmalloc-512 2773KB 2775KB [ 39.795173] kmalloc-256 1955KB 2478KB [ 39.800550] kmalloc-128 405KB 523KB [ 39.805931] kmalloc-96 2060KB 2060KB [ 39.811306] kmalloc-64 2472KB 2472KB [ 39.816681] kmalloc-32 2400KB 2401KB [ 39.822056] kmalloc-192 912KB 912KB [ 39.827432] kmem_cache 101KB 105KB [ 39.832803] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 39.841430] [ 1815] 0 1815 5366 167 94208 0 -1000 udevd [ 39.849596] [ 3505] 0 3505 14298 218 118784 0 0 rsyslogd [ 39.858051] [ 3551] 0 3551 4725 49 86016 0 0 cron [ 39.866127] [ 3578] 0 3578 3736 45 69632 0 0 mcstransd [ 39.874639] [ 3606] 0 3606 12490 153 139264 0 -1000 sshd [ 39.882715] [ 3630] 0 3630 3694 39 69632 0 0 getty [ 39.890879] [ 3631] 0 3631 3694 41 73728 0 0 getty [ 39.899055] [ 3632] 0 3632 3694 41 73728 0 0 getty [ 39.907223] [ 3633] 0 3633 3694 42 73728 0 0 getty [ 39.915390] [ 3634] 0 3634 3694 41 73728 0 0 getty [ 39.923552] [ 3635] 0 3635 3694 40 77824 0 0 getty [ 39.931715] [ 3636] 0 3636 3649 39 77824 0 0 getty [ 39.939879] [ 3638] 0 3638 5681 455 90112 0 -1000 udevd [ 39.948043] [ 3639] 0 3639 5681 454 90112 0 -1000 udevd [ 39.956206] [ 3656] 0 3656 17821 197 184320 0 0 sshd [ 39.964280] [ 3658] 0 3658 280 1 32768 0 0 syzkaller617356 [ 39.973317] [ 3659] 0 3659 4375 0 32768 0 0 syzkaller617356 [ 39.982350] [ 3660] 0 3660 4375 0 32768 0 0 syzkaller617356 [ 39.991410] [ 3661] 0 3661 4375 522 36864 0 0 syzkaller617356 [ 40.001319] [ 3662] 0 3662 4375 522 36864 0 0 syzkaller617356 [ 40.010354] [ 3663] 0 3663 4375 522 36864 0 0 syzkaller617356 [ 40.019389] [ 3664] 0 3664 4375 522 36864 0 0 syzkaller617356 [ 40.028422] [ 3665] 0 3665 4375 522 36864 0 0 syzkaller617356 [ 40.037454] [ 3666] 0 3666 4375 522 36864 0 0 syzkaller617356 [ 40.046483] Out of memory: Kill process 3661 (syzkaller617356) score 0 or sacrifice child [ 40.054831] Killed process 3661 (syzkaller617356) total-vm:17500kB, anon-rss:2088kB, file-rss:0kB, shmem-rss:0kB [ 40.068427] oom_reaper: reaped process 3661 (syzkaller617356), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 40.079511] rs:main Q:Reg invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=0 [ 40.091562] rs:main Q:Reg cpuset=/ mems_allowed=0 [ 40.096605] CPU: 0 PID: 3506 Comm: rs:main Q:Reg Not tainted 4.15.0-rc7+ #191 [ 40.103860] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.113202] Call Trace: [ 40.115791] dump_stack+0x194/0x257 [ 40.119424] ? arch_local_irq_restore+0x53/0x53 [ 40.124093] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 40.129292] dump_header+0x28c/0xe1e [ 40.132999] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 40.138176] ? pagefault_out_of_memory+0x152/0x152 [ 40.143088] ? check_noncircular+0x20/0x20 [ 40.147319] ? print_irqtrace_events+0x270/0x270 [ 40.152060] ? __lock_acquire+0x664/0x3e00 [ 40.156274] ? check_noncircular+0x20/0x20 [ 40.160491] ? find_held_lock+0x35/0x1d0 [ 40.164535] ? check_noncircular+0x20/0x20 [ 40.168746] ? task_will_free_mem+0x252/0xaa0 [ 40.173232] ? print_irqtrace_events+0x270/0x270 [ 40.177977] ? ___ratelimit+0x30d/0x630 [ 40.181928] ? lock_downgrade+0x980/0x980 [ 40.186053] ? lock_release+0xa40/0xa40 [ 40.190006] ? mark_held_locks+0xaf/0x100 [ 40.194129] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 40.199219] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 40.204220] ? trace_hardirqs_on+0xd/0x10 [ 40.208347] ? ___ratelimit+0x95/0x630 [ 40.212213] ? idr_get_free_cmn+0xfd0/0xfd0 [ 40.216514] ? check_noncircular+0x20/0x20 [ 40.220721] ? find_held_lock+0x138/0x1d0 [ 40.224854] oom_kill_process+0x8b5/0x14a0 [ 40.229083] ? has_ns_capability_noaudit+0x163/0x2a0 [ 40.234174] ? lock_downgrade+0x980/0x980 [ 40.238301] ? oom_evaluate_task+0x480/0x480 [ 40.242698] ? security_capable_noaudit+0x8b/0xc0 [ 40.247531] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 40.252620] ? has_capability+0x30/0x30 [ 40.256569] ? do_raw_spin_trylock+0x190/0x190 [ 40.261135] ? check_noncircular+0x20/0x20 [ 40.265377] ? has_capability_noaudit+0x24/0x30 [ 40.270035] ? oom_badness+0xd1/0x980 [ 40.273809] ? lock_release+0xa40/0xa40 [ 40.277759] ? do_try_to_free_pages+0xc53/0x1020 [ 40.282497] ? find_lock_task_mm+0x460/0x460 [ 40.286888] ? find_held_lock+0x35/0x1d0 [ 40.290933] ? out_of_memory+0xb3a/0x1220 [ 40.295068] ? lock_downgrade+0x980/0x980 [ 40.299212] ? lock_release+0xa40/0xa40 [ 40.303172] ? lock_acquire+0x1d5/0x580 [ 40.307138] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 40.312058] ? oom_evaluate_task+0x284/0x480 [ 40.316449] out_of_memory+0x86d/0x1220 [ 40.320400] ? trace_hardirqs_on+0xd/0x10 [ 40.324532] ? oom_killer_disable+0x310/0x310 [ 40.329004] ? mutex_trylock+0x23a/0x2d0 [ 40.333062] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 40.338495] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 40.344367] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 40.349218] ? trace_hardirqs_on+0xd/0x10 [ 40.353393] ? warn_alloc+0x2b0/0x2b0 [ 40.357191] ? lock_downgrade+0x980/0x980 [ 40.361346] ? radix_tree_lookup_slot+0x99/0xe0 [ 40.366016] ? find_get_entry+0x53c/0x9e0 [ 40.370160] ? __lock_acquire+0x664/0x3e00 [ 40.374407] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 40.380278] ? __might_sleep+0x95/0x190 [ 40.384236] __alloc_pages_nodemask+0x9fb/0xd80 [ 40.388891] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 40.393888] ? add_to_page_cache_lru+0x510/0x510 [ 40.398642] ? check_noncircular+0x20/0x20 [ 40.402854] ? check_noncircular+0x20/0x20 [ 40.407084] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 40.411843] alloc_pages_current+0xb6/0x1e0 [ 40.416147] __page_cache_alloc+0x334/0x500 [ 40.420447] ? rcu_read_lock_held+0xa9/0xc0 [ 40.424751] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 40.432100] filemap_fault+0xefc/0x1c20 [ 40.436056] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 40.441246] ? __lock_page_or_retry+0x4f0/0x4f0 [ 40.445906] ? filemap_map_pages+0x942/0x15d0 [ 40.450393] ? find_get_entries_tag+0xeb0/0xeb0 [ 40.455059] ? check_noncircular+0x20/0x20 [ 40.459294] ? print_irqtrace_events+0x270/0x270 [ 40.464032] ? print_irqtrace_events+0x270/0x270 [ 40.468763] ? print_irqtrace_events+0x270/0x270 [ 40.473517] ? lock_acquire+0x1d5/0x580 [ 40.477499] ? lock_acquire+0x1d5/0x580 [ 40.481460] ? lock_acquire+0x1d5/0x580 [ 40.485426] ? ext4_filemap_fault+0x7a/0xad [ 40.489742] ? __lock_acquire+0x664/0x3e00 [ 40.493961] ? lock_release+0xa40/0xa40 [ 40.497911] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 40.503781] ? rcu_note_context_switch+0x710/0x710 [ 40.508693] ? __might_sleep+0x95/0x190 [ 40.512648] ? down_read+0x96/0x150 [ 40.516251] ? ext4_filemap_fault+0x7a/0xad [ 40.520549] ? __down_interruptible+0x6b0/0x6b0 [ 40.525222] ext4_filemap_fault+0x82/0xad [ 40.529365] __do_fault+0xeb/0x30f [ 40.532898] ? pte_offset_kernel+0xc7/0xc7 [ 40.537122] ? do_raw_spin_trylock+0x190/0x190 [ 40.541708] ? check_noncircular+0x20/0x20 [ 40.545948] __handle_mm_fault+0x1d8f/0x3ce0 [ 40.550345] ? __pmd_alloc+0x4e0/0x4e0 [ 40.554229] ? find_held_lock+0x35/0x1d0 [ 40.558275] ? handle_mm_fault+0x248/0x8d0 [ 40.562491] ? lock_downgrade+0x980/0x980 [ 40.566652] handle_mm_fault+0x334/0x8d0 [ 40.570692] ? down_read_trylock+0xdb/0x170 [ 40.574989] ? __do_page_fault+0x32d/0xc90 [ 40.579213] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 40.583779] ? vmacache_find+0x5f/0x280 [ 40.587746] ? find_vma+0x30/0x150 [ 40.591278] __do_page_fault+0x5c9/0xc90 [ 40.595328] ? kernel_read+0x120/0x120 [ 40.599223] ? mm_fault_error+0x2c0/0x2c0 [ 40.603368] ? avc_policy_seqno+0x9/0x20 [ 40.607421] ? selinux_file_permission+0x82/0x460 [ 40.612256] do_page_fault+0xee/0x720 [ 40.616035] ? __do_page_fault+0xc90/0xc90 [ 40.620244] ? __fdget_raw+0x20/0x20 [ 40.623937] ? vfs_write+0x224/0x510 [ 40.627635] ? fput+0xd2/0x140 [ 40.630815] ? SyS_write+0x184/0x220 [ 40.634507] ? retint_user+0x18/0x18 [ 40.638198] ? page_fault+0x36/0x60 [ 40.641800] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 40.646623] ? page_fault+0x36/0x60 [ 40.650228] page_fault+0x4c/0x60 [ 40.653658] RIP: 0033:0x7facb85bbc1c [ 40.657353] RSP: 002b:00007facb7284040 EFLAGS: 00010202 [ 40.662703] RAX: 00007facb72856a8 RBX: 00007facb72840c0 RCX: ffffffffffffffa8 [ 40.669950] RDX: 0000000000000400 RSI: 00007facb72840c0 RDI: 000000000000000b [ 40.677199] RBP: 0000000000000400 R08: 0000000001aeab20 R09: 0000000001ae8dc0 [ 40.684451] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000001ad4c40 [ 40.691703] R13: 0000000000000006 R14: 0000000000000006 R15: 0000000000000180 [ 40.699084] Mem-Info: [ 40.701821] active_anon:4570 inactive_anon:62 isolated_anon:0 [ 40.701821] active_file:17 inactive_file:17 isolated_file:0 [ 40.701821] unevictable:0 dirty:0 writeback:0 unstable:0 [ 40.701821] slab_reclaimable:7311 slab_unreclaimable:83205 [ 40.701821] mapped:2 shmem:70 pagetables:311 bounce:0 [ 40.701821] free:22520 free_pcp:0 free_cma:0 [ 40.734619] Node 0 active_anon:18276kB inactive_anon:248kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 10240kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 40.762118] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 40.788297] lowmem_reserve[]: 0 2870 6381 6381 [ 40.792931] Node 0 DMA32 free:44124kB min:30332kB low:37912kB high:45492kB active_anon:32kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2942320kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 40.820213] lowmem_reserve[]: 0 0 3510 3510 [ 40.824580] Node 0 Normal free:30232kB min:37084kB low:46352kB high:55620kB active_anon:18244kB inactive_anon:248kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:0kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3072kB pagetables:1240kB bounce:0kB free_pcp:68kB local_pcp:68kB free_cma:0kB [ 40.853743] lowmem_reserve[]: 0 0 0 0 [ 40.857577] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 40.871263] Node 0 DMA32: 7*4kB (UM) 6*8kB (UM) 3*16kB (M) 1*32kB (M) 3*64kB (M) 4*128kB (M) 5*256kB (UM) 4*512kB (UM) 3*1024kB (UM) 2*2048kB (M) 8*4096kB (M) = 44124kB [ 40.886597] Node 0 Normal: 410*4kB (UM) 385*8kB (UME) 228*16kB (UME) 158*32kB (UM) 77*64kB (UM) 47*128kB (UM) 21*256kB (UM) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 30256kB [ 40.902234] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 40.910816] 104 total pagecache pages [ 40.914635] 0 pages in swap cache [ 40.918096] Swap cache stats: add 0, delete 0, find 0/0 [ 40.923455] Free swap = 0kB [ 40.926479] Total swap = 0kB [ 40.929499] 1965979 pages RAM [ 40.932606] 0 pages HighMem/MovableOnly [ 40.936581] 327765 pages reserved [ 40.940114] Unreclaimable slab info: [ 40.943911] Name Used Total [ 40.949495] hashtab_node 118KB 119KB [ 40.954857] ebitmap_node 382KB 385KB [ 40.960218] avtab_node 1012KB 1013KB [ 40.965580] TIPC 1KB 7KB [ 40.970964] SCTPv6 2KB 4KB [ 40.976391] DCCPv6 2KB 7KB [ 40.981785] DCCP 2KB 6KB [ 40.987658] fib6_nodes 0KB 4KB [ 40.993042] ip6_dst_cache 5KB 7KB [ 40.998427] RAWv6 9KB 13KB [ 41.003807] UDPv6 12KB 14KB [ 41.009190] TCPv6 2KB 5KB [ 41.014587] sd_ext_cdb 0KB 3KB [ 41.019965] scsi_sense_cache 117KB 120KB [ 41.025344] virtio_scsi_cmd 16KB 16KB [ 41.030714] sgpool-128 8KB 8KB [ 41.036087] sgpool-64 4KB 6KB [ 41.041452] sgpool-32 338KB 338KB [ 41.046850] sgpool-16 78KB 78KB [ 41.052235] sgpool-8 239KB 240KB [ 41.057622] cfq_io_cq 15KB 19KB [ 41.062997] cfq_queue 24KB 27KB [ 41.068384] mqueue_inode_cache 1KB 7KB [ 41.073844] nfs_commit_data 3KB 7KB [ 41.079217] nfs_write_data 34KB 37KB [ 41.084590] jbd2_inode 1KB 3KB [ 41.089967] ext4_system_zone 0KB 3KB [ 41.095364] bio-1 1KB 3KB [ 41.100762] rpc_buffers 17KB 19KB [ 41.106125] rpc_tasks 2KB 3KB [ 41.111515] UNIX 773KB 773KB [ 41.116900] tcp_bind_bucket 0KB 4KB [ 41.122691] ip_fib_trie 0KB 3KB [ 41.128074] ip_fib_alias 0KB 3KB [ 41.133441] ip_dst_cache 3KB 4KB [ 41.138817] RAW 5KB 7KB [ 41.144198] UDP 29KB 31KB [ 41.149582] TCP 7KB 15KB [ 41.154953] hugetlbfs_inode_cache 1KB 7KB [ 41.160681] eventpoll_pwq 10KB 11KB [ 41.166053] eventpoll_epi 19KB 23KB [ 41.171429] inotify_inode_mark 3KB 7KB [ 41.176911] request_queue 36KB 90KB [ 41.182278] blkdev_ioc 21KB 23KB [ 41.187654] bio-0 483KB 483KB [ 41.193034] biovec-(1<<(21-12)) 437KB 437KB [ 41.198594] biovec-64 340KB 346KB [ 41.203966] biovec-16 59KB 60KB [ 41.209349] bio_integrity_payload 0KB 4KB [ 41.215086] khugepaged_mm_slot 0KB 3KB [ 41.220553] uid_cache 0KB 3KB [ 41.225935] dmaengine-unmap-2 0KB 3KB [ 41.231304] audit_buffer 0KB 3KB [ 41.236683] skbuff_fclone_cache 136KB 138KB [ 41.242245] skbuff_head_cache 1670KB 1672KB [ 41.247631] configfs_dir_cache 0KB 4KB [ 41.253084] file_lock_cache 159KB 162KB [ 41.259257] file_lock_ctx 1KB 3KB [ 41.264631] fsnotify_mark_connector 2KB 3KB [ 41.270529] shmem_inode_cache 1046KB 1050KB [ 41.275898] task_delay_info 318KB 339KB [ 41.281273] sigqueue 366KB 370KB [ 41.286640] kernfs_node_cache 2284KB 2287KB [ 41.292042] mnt_cache 15KB 16KB [ 41.297421] filp 8306KB 8767KB [ 41.302794] names_cache 110712KB 110742KB [ 41.308179] avc_node 37KB 43KB [ 41.313562] selinux_file_security 420KB 492KB [ 41.319279] selinux_inode_security 1952KB 1956KB [ 41.325091] key_jar 3KB 7KB [ 41.330474] nsproxy 0KB 3KB [ 41.335854] vm_area_struct 18707KB 18721KB [ 41.341229] mm_struct 4525KB 4539KB [ 41.346595] fs_cache 425KB 432KB [ 41.351969] files_cache 1595KB 1601KB [ 41.357354] signal_cache 2542KB 2558KB [ 41.362738] sighand_cache 222KB 319KB [ 41.368109] task_struct 10859KB 10871KB [ 41.373500] cred_jar 2356KB 2364KB [ 41.378885] anon_vma_chain 7848KB 7859KB [ 41.384251] anon_vma 131KB 354KB [ 41.389625] pid 221KB 240KB [ 41.395832] Acpi-Operand 106KB 170KB [ 41.401226] Acpi-Namespace 19KB 23KB [ 41.406611] numa_policy 0KB 3KB [ 41.411981] debug_objects_cache 537KB 539KB [ 41.417543] trace_event_file 145KB 147KB [ 41.422906] ftrace_event_field 257KB 259KB [ 41.428365] pool_workqueue 24KB 28KB [ 41.433732] page->ptl 3096KB 3103KB [ 41.439142] kmalloc-262144 1032KB 1032KB [ 41.444534] kmalloc-131072 650KB 650KB [ 41.449904] kmalloc-65536 264KB 264KB [ 41.455286] kmalloc-32768 825KB 825KB [ 41.460656] kmalloc-16384 181KB 181KB [ 41.466046] kmalloc-8192 519KB 519KB [ 41.471432] kmalloc-4096 6676KB 6706KB [ 41.476798] kmalloc-2048 3221KB 3225KB [ 41.482173] kmalloc-1024 3945KB 3945KB [ 41.487555] kmalloc-512 2773KB 2775KB [ 41.492923] kmalloc-256 1938KB 2452KB [ 41.498305] kmalloc-128 405KB 523KB [ 41.503678] kmalloc-96 2062KB 2064KB [ 41.509052] kmalloc-64 2469KB 2472KB [ 41.514439] kmalloc-32 2392KB 2401KB [ 41.519886] kmalloc-192 912KB 912KB [ 41.525267] kmem_cache 101KB 105KB [ 41.531118] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 41.539820] [ 1815] 0 1815 5366 167 94208 0 -1000 udevd [ 41.548053] [ 3505] 0 3505 14298 218 118784 0 0 rsyslogd [ 41.556487] [ 3551] 0 3551 4725 49 86016 0 0 cron [ 41.564563] [ 3578] 0 3578 3736 45 69632 0 0 mcstransd [ 41.573069] [ 3606] 0 3606 12490 153 139264 0 -1000 sshd [ 41.581133] [ 3630] 0 3630 3694 39 69632 0 0 getty [ 41.589285] [ 3631] 0 3631 3694 41 73728 0 0 getty [ 41.597434] [ 3632] 0 3632 3694 41 73728 0 0 getty [ 41.605594] [ 3633] 0 3633 3694 42 73728 0 0 getty [ 41.613744] [ 3634] 0 3634 3694 41 73728 0 0 getty [ 41.621892] [ 3635] 0 3635 3694 40 77824 0 0 getty [ 41.630060] [ 3636] 0 3636 3649 39 77824 0 0 getty [ 41.638223] [ 3638] 0 3638 5681 455 90112 0 -1000 udevd [ 41.646373] [ 3639] 0 3639 5681 454 90112 0 -1000 udevd [ 41.654523] [ 3656] 0 3656 17821 197 184320 0 0 sshd [ 41.662586] [ 3658] 0 3658 280 1 32768 0 0 syzkaller617356 [ 41.671631] [ 3659] 0 3659 4375 0 32768 0 0 syzkaller617356 [ 41.680651] [ 3660] 0 3660 4375 0 32768 0 0 syzkaller617356 [ 41.689668] [ 3661] 0 3661 4375 0 32768 0 0 syzkaller617356 [ 41.698690] [ 3662] 0 3662 4375 522 36864 0 0 syzkaller617356 [ 41.707724] [ 3663] 0 3663 4375 522 36864 0 0 syzkaller617356 [ 41.716741] [ 3664] 0 3664 4375 522 36864 0 0 syzkaller617356 [ 41.725763] [ 3665] 0 3665 4375 522 36864 0 0 syzkaller617356 [ 41.734784] [ 3666] 0 3666 4375 522 36864 0 0 syzkaller617356 [ 41.743812] Out of memory: Kill process 3662 (syzkaller617356) score 0 or sacrifice child [ 41.752387] Killed process 3662 (syzkaller617356) total-vm:17500kB, anon-rss:2088kB, file-rss:0kB, shmem-rss:0kB [ 41.765844] oom_reaper: reaped process 3662 (syzkaller617356), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 41.776748] udevd invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=-1000 [ 41.789136] udevd cpuset=/ mems_allowed=0 [ 41.793344] CPU: 1 PID: 3638 Comm: udevd Not tainted 4.15.0-rc7+ #191 [ 41.799907] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.809251] Call Trace: [ 41.811834] dump_stack+0x194/0x257 [ 41.815461] ? arch_local_irq_restore+0x53/0x53 [ 41.820125] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 41.825318] dump_header+0x28c/0xe1e [ 41.829033] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 41.834220] ? pagefault_out_of_memory+0x152/0x152 [ 41.839138] ? check_noncircular+0x20/0x20 [ 41.843367] ? print_irqtrace_events+0x270/0x270 [ 41.848122] ? __lock_acquire+0x664/0x3e00 [ 41.852354] ? check_noncircular+0x20/0x20 [ 41.856592] ? find_held_lock+0x35/0x1d0 [ 41.860657] ? check_noncircular+0x20/0x20 [ 41.864883] ? task_will_free_mem+0x252/0xaa0 [ 41.869377] ? print_irqtrace_events+0x270/0x270 [ 41.874134] ? ___ratelimit+0x30d/0x630 [ 41.878103] ? lock_downgrade+0x980/0x980 [ 41.882249] ? lock_release+0xa40/0xa40 [ 41.886223] ? mark_held_locks+0xaf/0x100 [ 41.890364] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 41.895471] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 41.900482] ? trace_hardirqs_on+0xd/0x10 [ 41.904627] ? ___ratelimit+0x95/0x630 [ 41.908511] ? idr_get_free_cmn+0xfd0/0xfd0 [ 41.912826] ? check_noncircular+0x20/0x20 [ 41.917048] ? find_held_lock+0x138/0x1d0 [ 41.921205] oom_kill_process+0x8b5/0x14a0 [ 41.925441] ? has_ns_capability_noaudit+0x163/0x2a0 [ 41.930540] ? lock_downgrade+0x980/0x980 [ 41.934690] ? oom_evaluate_task+0x480/0x480 [ 41.939109] ? security_capable_noaudit+0x8b/0xc0 [ 41.943951] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 41.949047] ? has_capability+0x30/0x30 [ 41.953015] ? do_raw_spin_trylock+0x190/0x190 [ 41.957590] ? check_noncircular+0x20/0x20 [ 41.961835] ? has_capability_noaudit+0x24/0x30 [ 41.966499] ? oom_badness+0xd1/0x980 [ 41.970291] ? lock_release+0xa40/0xa40 [ 41.974258] ? do_try_to_free_pages+0xc53/0x1020 [ 41.979012] ? find_lock_task_mm+0x460/0x460 [ 41.983423] ? find_held_lock+0x35/0x1d0 [ 41.987500] ? out_of_memory+0xb3a/0x1220 [ 41.991642] ? lock_downgrade+0x980/0x980 [ 41.995787] ? lock_release+0xa40/0xa40 [ 41.999756] ? lock_acquire+0x1d5/0x580 [ 42.003726] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 42.008670] ? oom_evaluate_task+0x284/0x480 [ 42.013083] out_of_memory+0x86d/0x1220 [ 42.017067] ? oom_killer_disable+0x310/0x310 [ 42.021551] ? mutex_trylock+0x23a/0x2d0 [ 42.025607] ? __lock_is_held+0xb6/0x140 [ 42.029661] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 42.035120] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 42.039968] ? trace_hardirqs_on+0xd/0x10 [ 42.044139] ? warn_alloc+0x2b0/0x2b0 [ 42.047932] ? lock_downgrade+0x980/0x980 [ 42.052087] ? __lock_is_held+0xb6/0x140 [ 42.056162] ? find_get_entry+0x53c/0x9e0 [ 42.060339] ? __lock_acquire+0x664/0x3e00 [ 42.064585] ? __lock_is_held+0xb6/0x140 [ 42.068662] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 42.074557] ? __might_sleep+0x95/0x190 [ 42.078530] __alloc_pages_nodemask+0x9fb/0xd80 [ 42.083206] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 42.088215] ? add_to_page_cache_lru+0x510/0x510 [ 42.092982] ? check_noncircular+0x20/0x20 [ 42.097206] ? check_noncircular+0x20/0x20 [ 42.101432] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 42.107318] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 42.112098] alloc_pages_current+0xb6/0x1e0 [ 42.116420] __page_cache_alloc+0x334/0x500 [ 42.120732] ? rcu_read_lock_held+0xa9/0xc0 [ 42.125054] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 42.132422] filemap_fault+0xefc/0x1c20 [ 42.136385] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 42.141580] ? __lock_page_or_retry+0x4f0/0x4f0 [ 42.146253] ? filemap_map_pages+0x942/0x15d0 [ 42.150765] ? find_get_entries_tag+0xeb0/0xeb0 [ 42.155437] ? __unlock_page_memcg+0x72/0x100 [ 42.159930] ? check_noncircular+0x20/0x20 [ 42.164195] ? print_irqtrace_events+0x270/0x270 [ 42.168941] ? print_irqtrace_events+0x270/0x270 [ 42.173687] ? print_irqtrace_events+0x270/0x270 [ 42.178436] ? find_held_lock+0x35/0x1d0 [ 42.182510] ? lock_acquire+0x1d5/0x580 [ 42.186470] ? lock_acquire+0x1d5/0x580 [ 42.190432] ? ext4_filemap_fault+0x7a/0xad [ 42.194755] ? __lock_acquire+0x664/0x3e00 [ 42.198983] ? lock_release+0xa40/0xa40 [ 42.202951] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 42.208834] ? rcu_note_context_switch+0x710/0x710 [ 42.213768] ? __might_sleep+0x95/0x190 [ 42.217746] ? down_read+0x96/0x150 [ 42.221366] ? ext4_filemap_fault+0x7a/0xad [ 42.225680] ? __down_interruptible+0x6b0/0x6b0 [ 42.230365] ext4_filemap_fault+0x82/0xad [ 42.234509] __do_fault+0xeb/0x30f [ 42.238046] ? pte_offset_kernel+0xc7/0xc7 [ 42.242277] ? do_raw_spin_trylock+0x190/0x190 [ 42.246878] ? __lock_acquire+0x664/0x3e00 [ 42.251109] ? check_noncircular+0x20/0x20 [ 42.255347] __handle_mm_fault+0x1d8f/0x3ce0 [ 42.259760] ? __pmd_alloc+0x4e0/0x4e0 [ 42.263650] ? find_held_lock+0x35/0x1d0 [ 42.267713] ? handle_mm_fault+0x248/0x8d0 [ 42.271946] ? lock_downgrade+0x980/0x980 [ 42.276127] handle_mm_fault+0x334/0x8d0 [ 42.280178] ? down_read_trylock+0xdb/0x170 [ 42.284489] ? __do_page_fault+0x32d/0xc90 [ 42.288717] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 42.293292] ? vmacache_find+0x5f/0x280 [ 42.297264] ? find_vma+0x30/0x150 [ 42.300802] __do_page_fault+0x5c9/0xc90 [ 42.304853] ? vfs_copy_file_range+0x940/0x940 [ 42.309444] ? mm_fault_error+0x2c0/0x2c0 [ 42.313587] ? avc_policy_seqno+0x9/0x20 [ 42.317654] do_page_fault+0xee/0x720 [ 42.321450] ? __do_page_fault+0xc90/0xc90 [ 42.325682] ? vfs_read+0x165/0x350 [ 42.329306] ? SyS_read+0x184/0x220 [ 42.332921] ? generic_file_llseek_size+0xe1/0x2e0 [ 42.337841] ? retint_user+0x18/0x18 [ 42.341552] ? page_fault+0x36/0x60 [ 42.345170] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 42.350010] ? page_fault+0x36/0x60 [ 42.353630] page_fault+0x4c/0x60 [ 42.357075] RIP: 0033:0x7f74ea39deae [ 42.360771] RSP: 002b:00007ffe8a9d3810 EFLAGS: 00010202 [ 42.366125] RAX: 0000000000000000 RBX: 0000000001d3f8c0 RCX: 0000000001d3f8c0 [ 42.373385] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 0000000001bbb300 [ 42.380644] RBP: 00007ffe8a9d3950 R08: 0000000001bbb2f0 R09: 0000000000000000 [ 42.387902] R10: 0000000000000022 R11: 0000000000000202 R12: 0000000000000000 [ 42.395160] R13: 0000000000000004 R14: 0000000000000008 R15: 0000000000000018 [ 42.402531] Mem-Info: [ 42.405709] active_anon:4053 inactive_anon:62 isolated_anon:0 [ 42.405709] active_file:26 inactive_file:1 isolated_file:0 [ 42.405709] unevictable:0 dirty:0 writeback:0 unstable:0 [ 42.405709] slab_reclaimable:7308 slab_unreclaimable:83155 [ 42.405709] mapped:2 shmem:70 pagetables:310 bounce:0 [ 42.405709] free:23084 free_pcp:30 free_cma:0 [ 42.438478] Node 0 active_anon:16212kB inactive_anon:248kB active_file:104kB inactive_file:4kB 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 [ 42.465626] 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 [ 42.491821] lowmem_reserve[]: 0 2870 6381 6381 [ 42.496457] Node 0 DMA32 free:44124kB min:30332kB low:37912kB high:45492kB active_anon:32kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2942320kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 42.523735] lowmem_reserve[]: 0 0 3510 3510 [ 42.528087] Node 0 Normal free:32304kB min:37084kB low:46352kB high:55620kB active_anon:16180kB inactive_anon:248kB active_file:104kB inactive_file:4kB unevictable:0kB writepending:0kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3072kB pagetables:1240kB bounce:0kB free_pcp:120kB local_pcp:12kB free_cma:0kB [ 42.556845] lowmem_reserve[]: 0 0 0 0 [ 42.560675] 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 [ 42.574321] Node 0 DMA32: 7*4kB (UM) 6*8kB (UM) 3*16kB (M) 1*32kB (M) 3*64kB (M) 4*128kB (M) 5*256kB (UM) 4*512kB (UM) 3*1024kB (UM) 2*2048kB (M) 8*4096kB (M) = 44124kB [ 42.589571] Node 0 Normal: 410*4kB (UM) 385*8kB (UME) 228*16kB (UME) 158*32kB (UM) 77*64kB (UM) 47*128kB (UM) 21*256kB (UM) 1*512kB (U) 0*1024kB 1*2048kB (M) 0*4096kB = 32304kB [ 42.605513] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 42.614099] 104 total pagecache pages [ 42.617967] 0 pages in swap cache [ 42.621430] Swap cache stats: add 0, delete 0, find 0/0 [ 42.626804] Free swap = 0kB [ 42.629836] Total swap = 0kB [ 42.632855] 1965979 pages RAM [ 42.635963] 0 pages HighMem/MovableOnly [ 42.639938] 327765 pages reserved [ 42.643398] Unreclaimable slab info: [ 42.647114] Name Used Total [ 42.652666] hashtab_node 118KB 119KB [ 42.658052] ebitmap_node 382KB 385KB [ 42.663441] avtab_node 1012KB 1013KB [ 42.668838] TIPC 1KB 7KB [ 42.674208] SCTPv6 2KB 4KB [ 42.679593] DCCPv6 2KB 7KB [ 42.684974] DCCP 2KB 6KB [ 42.690357] fib6_nodes 0KB 4KB [ 42.695735] ip6_dst_cache 7KB 7KB [ 42.701105] RAWv6 9KB 13KB [ 42.706481] UDPv6 12KB 14KB [ 42.711864] TCPv6 2KB 5KB [ 42.717242] sd_ext_cdb 0KB 3KB [ 42.722671] scsi_sense_cache 117KB 120KB [ 42.728065] virtio_scsi_cmd 16KB 16KB [ 42.733450] sgpool-128 8KB 8KB [ 42.738834] sgpool-64 4KB 6KB [ 42.744217] sgpool-32 338KB 338KB [ 42.749612] sgpool-16 77KB 78KB [ 42.754995] sgpool-8 239KB 240KB [ 42.760385] cfq_io_cq 15KB 19KB [ 42.765772] cfq_queue 24KB 27KB [ 42.771139] mqueue_inode_cache 1KB 7KB [ 42.776601] nfs_commit_data 3KB 7KB [ 42.781986] nfs_write_data 34KB 37KB [ 42.787358] jbd2_inode 1KB 3KB [ 42.792741] ext4_system_zone 0KB 3KB [ 42.798140] bio-1 1KB 3KB [ 42.803536] rpc_buffers 17KB 19KB [ 42.808925] rpc_tasks 2KB 3KB [ 42.814296] UNIX 773KB 773KB [ 42.820481] tcp_bind_bucket 0KB 4KB [ 42.825873] ip_fib_trie 0KB 3KB [ 42.831242] ip_fib_alias 0KB 3KB [ 42.836616] ip_dst_cache 3KB 4KB [ 42.842007] RAW 5KB 7KB [ 42.847412] UDP 29KB 31KB [ 42.852805] TCP 7KB 15KB [ 42.858173] hugetlbfs_inode_cache 1KB 7KB [ 42.863899] eventpoll_pwq 10KB 11KB [ 42.869279] eventpoll_epi 19KB 23KB [ 42.874659] inotify_inode_mark 3KB 7KB [ 42.880162] request_queue 36KB 90KB [ 42.885544] blkdev_ioc 21KB 23KB [ 42.890930] bio-0 483KB 483KB [ 42.896325] biovec-(1<<(21-12)) 437KB 437KB [ 42.901881] biovec-64 339KB 346KB [ 42.907263] biovec-16 58KB 60KB [ 42.912645] bio_integrity_payload 0KB 4KB [ 42.918377] khugepaged_mm_slot 0KB 3KB [ 42.923854] uid_cache 0KB 3KB [ 42.929241] dmaengine-unmap-2 0KB 3KB [ 42.934610] audit_buffer 0KB 3KB [ 42.939988] skbuff_fclone_cache 136KB 138KB [ 42.945566] skbuff_head_cache 1672KB 1672KB [ 42.950937] configfs_dir_cache 0KB 4KB [ 42.956397] file_lock_cache 159KB 162KB [ 42.961757] file_lock_ctx 1KB 3KB [ 42.967136] fsnotify_mark_connector 2KB 3KB [ 42.973047] shmem_inode_cache 1046KB 1050KB [ 42.978424] task_delay_info 318KB 339KB [ 42.983806] sigqueue 365KB 370KB [ 42.989191] kernfs_node_cache 2284KB 2287KB [ 42.994576] mnt_cache 15KB 16KB [ 42.999954] filp 8299KB 8756KB [ 43.005338] names_cache 110704KB 110742KB [ 43.010718] avc_node 37KB 43KB [ 43.016096] selinux_file_security 420KB 492KB [ 43.021814] selinux_inode_security 1952KB 1956KB [ 43.027627] key_jar 3KB 7KB [ 43.033035] nsproxy 0KB 3KB [ 43.038418] vm_area_struct 18707KB 18721KB [ 43.043803] mm_struct 4525KB 4539KB [ 43.049185] fs_cache 425KB 432KB [ 43.054570] files_cache 1595KB 1601KB [ 43.059956] signal_cache 2542KB 2558KB [ 43.065337] sighand_cache 222KB 319KB [ 43.070720] task_struct 10859KB 10871KB [ 43.076101] cred_jar 2356KB 2364KB [ 43.081481] anon_vma_chain 7848KB 7859KB [ 43.086848] anon_vma 131KB 354KB [ 43.092225] pid 221KB 240KB [ 43.097607] Acpi-Operand 106KB 170KB [ 43.102986] Acpi-Namespace 19KB 23KB [ 43.108369] numa_policy 0KB 3KB [ 43.113756] debug_objects_cache 537KB 539KB [ 43.119315] trace_event_file 145KB 147KB [ 43.124704] ftrace_event_field 257KB 259KB [ 43.130174] pool_workqueue 24KB 28KB [ 43.135577] page->ptl 3096KB 3103KB [ 43.141857] kmalloc-262144 1032KB 1032KB [ 43.148044] kmalloc-131072 650KB 650KB [ 43.153439] kmalloc-65536 264KB 264KB [ 43.158821] kmalloc-32768 825KB 825KB [ 43.164205] kmalloc-16384 181KB 181KB [ 43.169591] kmalloc-8192 519KB 519KB [ 43.174972] kmalloc-4096 6668KB 6706KB [ 43.180359] kmalloc-2048 3221KB 3225KB [ 43.185746] kmalloc-1024 3945KB 3945KB [ 43.191126] kmalloc-512 2775KB 2775KB [ 43.196506] kmalloc-256 1937KB 2452KB [ 43.201885] kmalloc-128 405KB 523KB [ 43.207296] kmalloc-96 2062KB 2064KB [ 43.212688] kmalloc-64 2469KB 2472KB [ 43.218058] kmalloc-32 2392KB 2401KB [ 43.223434] kmalloc-192 912KB 912KB [ 43.228818] kmem_cache 101KB 105KB [ 43.234196] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 43.242816] [ 1815] 0 1815 5366 167 94208 0 -1000 udevd [ 43.250985] [ 3505] 0 3505 14298 218 118784 0 0 rsyslogd [ 43.259418] [ 3551] 0 3551 4725 49 86016 0 0 cron [ 43.267488] [ 3578] 0 3578 3736 45 69632 0 0 mcstransd [ 43.276013] [ 3606] 0 3606 12490 153 139264 0 -1000 sshd [ 43.284123] [ 3630] 0 3630 3694 39 69632 0 0 getty [ 43.292294] [ 3631] 0 3631 3694 41 73728 0 0 getty [ 43.300470] [ 3632] 0 3632 3694 41 73728 0 0 getty [ 43.308645] [ 3633] 0 3633 3694 42 73728 0 0 getty [ 43.316812] [ 3634] 0 3634 3694 41 73728 0 0 getty [ 43.324979] [ 3635] 0 3635 3694 40 77824 0 0 getty [ 43.333155] [ 3636] 0 3636 3649 39 77824 0 0 getty [ 43.341327] [ 3638] 0 3638 5681 455 90112 0 -1000 udevd [ 43.349493] [ 3639] 0 3639 5681 454 90112 0 -1000 udevd [ 43.357667] [ 3656] 0 3656 17821 197 184320 0 0 sshd [ 43.365755] [ 3658] 0 3658 280 1 32768 0 0 syzkaller617356 [ 43.374799] [ 3659] 0 3659 4375 0 32768 0 0 syzkaller617356 [ 43.383824] [ 3660] 0 3660 4375 0 32768 0 0 syzkaller617356 [ 43.392858] [ 3661] 0 3661 4375 0 32768 0 0 syzkaller617356 [ 43.401899] [ 3662] 0 3662 4375 0 32768 0 0 syzkaller617356 [ 43.410926] [ 3663] 0 3663 4375 522 36864 0 0 syzkaller617356 [ 43.419960] [ 3664] 0 3664 4375 522 36864 0 0 syzkaller617356 [ 43.429044] [ 3665] 0 3665 4375 522 36864 0 0 syzkaller617356 [ 43.438087] [ 3666] 0 3666 4375 522 36864 0 0 syzkaller617356 [ 43.447116] Out of memory: Kill process 3663 (syzkaller617356) score 0 or sacrifice child [ 43.455471] Killed process 3663 (syzkaller617356) total-vm:17500kB, anon-rss:2088kB, file-rss:0kB, shmem-rss:0kB [ 43.467657] oom_reaper: reaped process 3663 (syzkaller617356), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 43.477912] init invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=0 [ 43.488956] init cpuset=/ mems_allowed=0 [ 43.493056] CPU: 0 PID: 1 Comm: init Not tainted 4.15.0-rc7+ #191 [ 43.499274] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.508615] Call Trace: [ 43.511197] dump_stack+0x194/0x257 [ 43.514820] ? arch_local_irq_restore+0x53/0x53 [ 43.519486] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 43.524679] dump_header+0x28c/0xe1e [ 43.528401] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 43.533592] ? pagefault_out_of_memory+0x152/0x152 [ 43.538511] ? check_noncircular+0x20/0x20 [ 43.542743] ? print_irqtrace_events+0x270/0x270 [ 43.547498] ? __lock_acquire+0x664/0x3e00 [ 43.551732] ? check_noncircular+0x20/0x20 [ 43.555969] ? find_held_lock+0x35/0x1d0 [ 43.560032] ? check_noncircular+0x20/0x20 [ 43.564261] ? task_will_free_mem+0x252/0xaa0 [ 43.568755] ? print_irqtrace_events+0x270/0x270 [ 43.573516] ? ___ratelimit+0x30d/0x630 [ 43.577485] ? lock_downgrade+0x980/0x980 [ 43.581630] ? lock_release+0xa40/0xa40 [ 43.585603] ? mark_held_locks+0xaf/0x100 [ 43.589747] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 43.594842] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 43.599850] ? trace_hardirqs_on+0xd/0x10 [ 43.603993] ? ___ratelimit+0x95/0x630 [ 43.607877] ? idr_get_free_cmn+0xfd0/0xfd0 [ 43.612191] ? check_noncircular+0x20/0x20 [ 43.616412] ? find_held_lock+0x138/0x1d0 [ 43.620563] oom_kill_process+0x8b5/0x14a0 [ 43.624797] ? has_ns_capability_noaudit+0x163/0x2a0 [ 43.629912] ? lock_downgrade+0x980/0x980 [ 43.634063] ? oom_evaluate_task+0x480/0x480 [ 43.638482] ? security_capable_noaudit+0x8b/0xc0 [ 43.643325] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 43.648420] ? has_capability+0x30/0x30 [ 43.652383] ? do_raw_spin_trylock+0x190/0x190 [ 43.656956] ? check_noncircular+0x20/0x20 [ 43.661197] ? has_capability_noaudit+0x24/0x30 [ 43.665862] ? oom_badness+0xd1/0x980 [ 43.669653] ? lock_release+0xa40/0xa40 [ 43.673618] ? do_try_to_free_pages+0xc53/0x1020 [ 43.678369] ? find_lock_task_mm+0x460/0x460 [ 43.682779] ? find_held_lock+0x35/0x1d0 [ 43.686843] ? out_of_memory+0xb3a/0x1220 [ 43.690983] ? lock_downgrade+0x980/0x980 [ 43.695130] ? lock_release+0xa40/0xa40 [ 43.699090] ? lock_acquire+0x1d5/0x580 [ 43.703062] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 43.707994] ? oom_evaluate_task+0x284/0x480 [ 43.712401] out_of_memory+0x86d/0x1220 [ 43.716381] ? oom_killer_disable+0x310/0x310 [ 43.720862] ? mutex_trylock+0x23a/0x2d0 [ 43.724914] ? __lock_is_held+0xb6/0x140 [ 43.728964] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 43.734427] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 43.739275] ? trace_hardirqs_on+0xd/0x10 [ 43.743444] ? warn_alloc+0x2b0/0x2b0 [ 43.747244] ? lock_downgrade+0x980/0x980 [ 43.751376] ? __lock_is_held+0xb6/0x140 [ 43.755424] ? find_get_entry+0x53c/0x9e0 [ 43.759543] ? print_irqtrace_events+0x270/0x270 [ 43.764280] ? switched_to_fair+0xb0/0xb0 [ 43.768408] ? __lock_acquire+0x664/0x3e00 [ 43.772644] ? __lock_is_held+0xb6/0x140 [ 43.776691] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 43.782568] ? __might_sleep+0x95/0x190 [ 43.786521] __alloc_pages_nodemask+0x9fb/0xd80 [ 43.791171] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 43.796164] ? add_to_page_cache_lru+0x510/0x510 [ 43.800899] ? check_noncircular+0x20/0x20 [ 43.805113] ? check_noncircular+0x20/0x20 [ 43.809338] ? find_held_lock+0x35/0x1d0 [ 43.813374] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 43.818126] alloc_pages_current+0xb6/0x1e0 [ 43.822426] __page_cache_alloc+0x334/0x500 [ 43.826723] ? rcu_read_lock_held+0xa9/0xc0 [ 43.831028] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 43.838376] filemap_fault+0xefc/0x1c20 [ 43.842333] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 43.847505] ? __lock_page_or_retry+0x4f0/0x4f0 [ 43.852154] ? filemap_map_pages+0x942/0x15d0 [ 43.856629] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 43.861711] ? find_get_entries_tag+0xeb0/0xeb0 [ 43.866357] ? print_irqtrace_events+0x270/0x270 [ 43.871090] ? remove_wait_queue+0x1b4/0x350 [ 43.875480] ? check_noncircular+0x20/0x20 [ 43.879686] ? print_irqtrace_events+0x270/0x270 [ 43.884412] ? add_wait_queue+0x290/0x290 [ 43.888538] ? print_irqtrace_events+0x270/0x270 [ 43.893265] ? print_irqtrace_events+0x270/0x270 [ 43.897994] ? fput+0xd2/0x140 [ 43.901170] ? print_irqtrace_events+0x270/0x270 [ 43.906341] ? lock_acquire+0x1d5/0x580 [ 43.910288] ? lock_acquire+0x1d5/0x580 [ 43.914234] ? ext4_filemap_fault+0x7a/0xad [ 43.918531] ? __lock_acquire+0x664/0x3e00 [ 43.922743] ? lock_release+0xa40/0xa40 [ 43.926692] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 43.932553] ? rcu_note_context_switch+0x710/0x710 [ 43.937460] ? __might_sleep+0x95/0x190 [ 43.941411] ? down_read+0x96/0x150 [ 43.945015] ? ext4_filemap_fault+0x7a/0xad [ 43.949326] ? __down_interruptible+0x6b0/0x6b0 [ 43.953968] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 43.959145] ext4_filemap_fault+0x82/0xad [ 43.963270] __do_fault+0xeb/0x30f [ 43.966787] ? pte_offset_kernel+0xc7/0xc7 [ 43.970996] ? set_fd_set.part.0+0x70/0x70 [ 43.975213] ? check_noncircular+0x20/0x20 [ 43.979430] ? check_noncircular+0x20/0x20 [ 43.983650] __handle_mm_fault+0x1d8f/0x3ce0 [ 43.988043] ? __pmd_alloc+0x4e0/0x4e0 [ 43.991904] ? find_held_lock+0x35/0x1d0 [ 43.996321] ? find_held_lock+0x35/0x1d0 [ 44.000366] ? handle_mm_fault+0x248/0x8d0 [ 44.004575] ? lock_downgrade+0x980/0x980 [ 44.008716] handle_mm_fault+0x334/0x8d0 [ 44.012753] ? down_read_trylock+0xdb/0x170 [ 44.017047] ? __do_page_fault+0x32d/0xc90 [ 44.021255] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 44.025816] ? vmacache_find+0x5f/0x280 [ 44.029768] ? find_vma+0x30/0x150 [ 44.033286] __do_page_fault+0x5c9/0xc90 [ 44.037326] ? mm_fault_error+0x2c0/0x2c0 [ 44.041458] do_page_fault+0xee/0x720 [ 44.045233] ? __do_page_fault+0xc90/0xc90 [ 44.049446] ? SyS_select+0x1ae/0x230 [ 44.053224] ? core_sys_select+0x960/0x960 [ 44.057436] ? entry_SYSCALL_64_fastpath+0x4f/0x9a [ 44.062346] ? page_fault+0x36/0x60 [ 44.065947] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 44.070763] ? page_fault+0x36/0x60 [ 44.074382] page_fault+0x4c/0x60 [ 44.077811] RIP: 0033:0x7f1e5d0e5dd3 [ 44.081495] RSP: 002b:00007ffe5630ee38 EFLAGS: 00010246 [ 44.086841] RAX: 0000000000000000 RBX: 00007ffe5630efe0 RCX: 00007f1e5d0e5dd3 [ 44.094100] RDX: 0000000000000000 RSI: 00007ffe5630f190 RDI: 000000000000000b [ 44.101344] RBP: 00007ffe5630f190 R08: 00007ffe5630f210 R09: 0000000000000001 [ 44.108586] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 44.115829] R13: 00007ffe5630f570 R14: 0000000000000000 R15: 0000000000000000 [ 44.123217] Mem-Info: [ 44.126486] active_anon:3535 inactive_anon:62 isolated_anon:0 [ 44.126486] active_file:17 inactive_file:17 isolated_file:0 [ 44.126486] unevictable:0 dirty:0 writeback:0 unstable:0 [ 44.126486] slab_reclaimable:7308 slab_unreclaimable:83152 [ 44.126486] mapped:2 shmem:70 pagetables:308 bounce:0 [ 44.126486] free:23596 free_pcp:37 free_cma:0 [ 44.158548] Node 0 active_anon:14140kB inactive_anon:248kB active_file:64kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):4kB 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 [ 44.185374] 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 [ 44.211523] lowmem_reserve[]: 0 2870 6381 6381 [ 44.216151] Node 0 DMA32 free:44124kB min:30332kB low:37912kB high:45492kB active_anon:32kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2942320kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 44.243429] lowmem_reserve[]: 0 0 3510 3510 [ 44.247795] Node 0 Normal free:34368kB min:37084kB low:46352kB high:55620kB active_anon:14108kB inactive_anon:248kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:0kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3072kB pagetables:1232kB bounce:0kB free_pcp:148kB local_pcp:132kB free_cma:0kB [ 44.277111] lowmem_reserve[]: 0 0 0 0 [ 44.280952] 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 [ 44.294628] Node 0 DMA32: 7*4kB (UM) 6*8kB (UM) 3*16kB (M) 1*32kB (M) 3*64kB (M) 4*128kB (M) 5*256kB (UM) 4*512kB (UM) 3*1024kB (UM) 2*2048kB (M) 8*4096kB (M) = 44124kB [ 44.309947] Node 0 Normal: 410*4kB (UM) 387*8kB (UME) 228*16kB (UME) 158*32kB (UM) 77*64kB (UM) 47*128kB (UM) 21*256kB (UM) 1*512kB (U) 0*1024kB 2*2048kB (M) 0*4096kB = 34368kB [ 44.325985] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 44.334580] 104 total pagecache pages [ 44.338404] 0 pages in swap cache [ 44.341876] Swap cache stats: add 0, delete 0, find 0/0 [ 44.347255] Free swap = 0kB [ 44.350285] Total swap = 0kB [ 44.353309] 1965979 pages RAM [ 44.356422] 0 pages HighMem/MovableOnly [ 44.360411] 327765 pages reserved [ 44.363878] Unreclaimable slab info: [ 44.367601] Name Used Total [ 44.373160] hashtab_node 118KB 119KB [ 44.378546] ebitmap_node 382KB 385KB [ 44.383927] avtab_node 1012KB 1013KB [ 44.389331] TIPC 1KB 7KB [ 44.394731] SCTPv6 2KB 4KB [ 44.400124] DCCPv6 2KB 7KB [ 44.405518] DCCP 2KB 6KB [ 44.411682] fib6_nodes 0KB 4KB [ 44.417067] ip6_dst_cache 7KB 7KB [ 44.422446] RAWv6 9KB 13KB [ 44.427834] UDPv6 12KB 14KB [ 44.433219] TCPv6 2KB 5KB [ 44.438621] sd_ext_cdb 0KB 3KB [ 44.444010] scsi_sense_cache 116KB 120KB [ 44.449418] virtio_scsi_cmd 16KB 16KB [ 44.454807] sgpool-128 8KB 8KB [ 44.460192] sgpool-64 4KB 6KB [ 44.465575] sgpool-32 338KB 338KB [ 44.470958] sgpool-16 77KB 78KB [ 44.476339] sgpool-8 238KB 240KB [ 44.481721] cfq_io_cq 15KB 19KB [ 44.487103] cfq_queue 24KB 27KB [ 44.492483] mqueue_inode_cache 1KB 7KB [ 44.497958] nfs_commit_data 3KB 7KB [ 44.503324] nfs_write_data 34KB 37KB [ 44.508699] jbd2_inode 1KB 3KB [ 44.514088] ext4_system_zone 0KB 3KB [ 44.519483] bio-1 1KB 3KB [ 44.524876] rpc_buffers 17KB 19KB [ 44.530243] rpc_tasks 2KB 3KB [ 44.535644] UNIX 773KB 773KB [ 44.541055] tcp_bind_bucket 0KB 4KB [ 44.547242] ip_fib_trie 0KB 3KB [ 44.552616] ip_fib_alias 0KB 3KB [ 44.557978] ip_dst_cache 3KB 4KB [ 44.563354] RAW 5KB 7KB [ 44.568721] UDP 29KB 31KB [ 44.574083] TCP 7KB 15KB [ 44.579458] hugetlbfs_inode_cache 1KB 7KB [ 44.585188] eventpoll_pwq 10KB 11KB [ 44.590557] eventpoll_epi 19KB 23KB [ 44.595916] inotify_inode_mark 3KB 7KB [ 44.601388] request_queue 36KB 90KB [ 44.606758] blkdev_ioc 21KB 23KB [ 44.612135] bio-0 482KB 483KB [ 44.617500] biovec-(1<<(21-12)) 437KB 437KB [ 44.623083] biovec-64 339KB 346KB [ 44.628474] biovec-16 58KB 60KB [ 44.633857] bio_integrity_payload 0KB 4KB [ 44.639598] khugepaged_mm_slot 0KB 3KB [ 44.645082] uid_cache 0KB 3KB [ 44.650455] dmaengine-unmap-2 0KB 3KB [ 44.655829] audit_buffer 0KB 3KB [ 44.661213] skbuff_fclone_cache 136KB 138KB [ 44.666767] skbuff_head_cache 1672KB 1672KB [ 44.672150] configfs_dir_cache 0KB 4KB [ 44.677618] file_lock_cache 159KB 162KB [ 44.683769] file_lock_ctx 1KB 3KB [ 44.689155] fsnotify_mark_connector 2KB 3KB [ 44.695063] shmem_inode_cache 1046KB 1050KB [ 44.700447] task_delay_info 318KB 339KB [ 44.705814] sigqueue 364KB 370KB [ 44.711191] kernfs_node_cache 2284KB 2287KB [ 44.716575] mnt_cache 15KB 16KB [ 44.721957] filp 8296KB 8752KB [ 44.727337] names_cache 110695KB 110733KB [ 44.733502] avc_node 37KB 43KB [ 44.739693] selinux_file_security 420KB 492KB [ 44.745445] selinux_inode_security 1952KB 1956KB [ 44.751266] key_jar 3KB 7KB [ 44.756650] nsproxy 0KB 3KB [ 44.762055] vm_area_struct 18707KB 18721KB [ 44.767497] mm_struct 4525KB 4539KB [ 44.772879] fs_cache 425KB 432KB [ 44.778261] files_cache 1595KB 1601KB [ 44.783645] signal_cache 2542KB 2558KB [ 44.789040] sighand_cache 222KB 319KB [ 44.794421] task_struct 10859KB 10871KB [ 44.800571] cred_jar 2356KB 2364KB [ 44.806728] anon_vma_chain 7848KB 7859KB [ 44.812854] anon_vma 131KB 354KB [ 44.819778] pid 221KB 240KB [ 44.825176] Acpi-Operand 106KB 170KB [ 44.830566] Acpi-Namespace 19KB 23KB [ 44.835954] numa_policy 0KB 3KB [ 44.841337] debug_objects_cache 537KB 539KB [ 44.846893] trace_event_file 145KB 147KB [ 44.852278] ftrace_event_field 257KB 259KB [ 44.857750] pool_workqueue 24KB 28KB [ 44.863125] page->ptl 3096KB 3103KB [ 44.868522] kmalloc-262144 1032KB 1032KB [ 44.873903] kmalloc-131072 650KB 650KB [ 44.879285] kmalloc-65536 264KB 264KB [ 44.884666] kmalloc-32768 825KB 825KB [ 44.890047] kmalloc-16384 181KB 181KB [ 44.895441] kmalloc-8192 519KB 519KB [ 44.900822] kmalloc-4096 6668KB 6706KB [ 44.906206] kmalloc-2048 3221KB 3225KB [ 44.911586] kmalloc-1024 3944KB 3945KB [ 44.916967] kmalloc-512 2775KB 2775KB [ 44.922356] kmalloc-256 1936KB 2452KB [ 44.927726] kmalloc-128 405KB 523KB [ 44.933103] kmalloc-96 2062KB 2064KB [ 44.938489] kmalloc-64 2468KB 2472KB [ 44.943872] kmalloc-32 2391KB 2401KB [ 44.949254] kmalloc-192 911KB 912KB [ 44.955373] kmem_cache 101KB 105KB [ 44.960750] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 44.969373] [ 1815] 0 1815 5366 167 94208 0 -1000 udevd [ 44.977558] [ 3505] 0 3505 14298 218 118784 0 0 rsyslogd [ 44.985999] [ 3551] 0 3551 4725 49 86016 0 0 cron [ 44.994126] [ 3578] 0 3578 3736 45 69632 0 0 mcstransd [ 45.002657] [ 3606] 0 3606 12490 153 139264 0 -1000 sshd [ 45.010747] [ 3630] 0 3630 3694 39 69632 0 0 getty [ 45.018927] [ 3631] 0 3631 3694 41 73728 0 0 getty [ 45.027125] [ 3632] 0 3632 3694 41 73728 0 0 getty [ 45.035294] [ 3633] 0 3633 3694 42 73728 0 0 getty [ 45.043464] [ 3634] 0 3634 3694 41 73728 0 0 getty [ 45.051638] [ 3635] 0 3635 3694 40 77824 0 0 getty [ 45.059816] [ 3636] 0 3636 3649 39 77824 0 0 getty [ 45.067987] [ 3638] 0 3638 5681 455 90112 0 -1000 udevd [ 45.076165] [ 3639] 0 3639 5681 454 90112 0 -1000 udevd [ 45.084342] [ 3656] 0 3656 17821 197 184320 0 0 sshd [ 45.092454] [ 3658] 0 3658 280 1 32768 0 0 syzkaller617356 [ 45.101501] [ 3659] 0 3659 4375 0 32768 0 0 syzkaller617356 [ 45.110542] [ 3660] 0 3660 4375 0 32768 0 0 syzkaller617356 [ 45.119593] [ 3661] 0 3661 4375 0 32768 0 0 syzkaller617356 [ 45.128640] [ 3662] 0 3662 4375 0 32768 0 0 syzkaller617356 [ 45.137676] [ 3663] 0 3663 4375 0 32768 0 0 syzkaller617356 [ 45.146711] [ 3664] 0 3664 4375 522 36864 0 0 syzkaller617356 [ 45.155753] [ 3665] 0 3665 4375 522 36864 0 0 syzkaller617356 [ 45.164785] [ 3666] 0 3666 4375 522 36864 0 0 syzkaller617356 [ 45.174077] Out of memory: Kill process 3664 (syzkaller617356) score 0 or sacrifice child [ 45.182773] Killed process 3664 (syzkaller617356) total-vm:17500kB, anon-rss:2088kB, file-rss:0kB, shmem-rss:0kB [ 45.195162] oom_reaper: reaped process 3664 (syzkaller617356), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 45.208059] udevd invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=-1000 [ 45.219599] udevd cpuset=/ mems_allowed=0 [ 45.223791] CPU: 1 PID: 3638 Comm: udevd Not tainted 4.15.0-rc7+ #191 [ 45.230354] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.239687] Call Trace: [ 45.242266] dump_stack+0x194/0x257 [ 45.245891] ? arch_local_irq_restore+0x53/0x53 [ 45.250549] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 45.255745] dump_header+0x28c/0xe1e [ 45.259467] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 45.264653] ? pagefault_out_of_memory+0x152/0x152 [ 45.269565] ? check_noncircular+0x20/0x20 [ 45.273791] ? print_irqtrace_events+0x270/0x270 [ 45.278529] ? __lock_acquire+0x664/0x3e00 [ 45.282747] ? check_noncircular+0x20/0x20 [ 45.286965] ? find_held_lock+0x35/0x1d0 [ 45.291015] ? check_noncircular+0x20/0x20 [ 45.295243] ? task_will_free_mem+0x252/0xaa0 [ 45.299740] ? print_irqtrace_events+0x270/0x270 [ 45.304487] ? ___ratelimit+0x30d/0x630 [ 45.308439] ? lock_downgrade+0x980/0x980 [ 45.312581] ? lock_release+0xa40/0xa40 [ 45.316546] ? mark_held_locks+0xaf/0x100 [ 45.320673] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 45.325767] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 45.330769] ? trace_hardirqs_on+0xd/0x10 [ 45.334898] ? ___ratelimit+0x95/0x630 [ 45.338768] ? idr_get_free_cmn+0xfd0/0xfd0 [ 45.343078] ? check_noncircular+0x20/0x20 [ 45.347303] ? find_held_lock+0x138/0x1d0 [ 45.351458] oom_kill_process+0x8b5/0x14a0 [ 45.355698] ? has_ns_capability_noaudit+0x163/0x2a0 [ 45.360788] ? lock_downgrade+0x980/0x980 [ 45.364935] ? oom_evaluate_task+0x480/0x480 [ 45.369353] ? security_capable_noaudit+0x8b/0xc0 [ 45.374197] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 45.379298] ? has_capability+0x30/0x30 [ 45.383263] ? do_raw_spin_trylock+0x190/0x190 [ 45.387841] ? check_noncircular+0x20/0x20 [ 45.392081] ? has_capability_noaudit+0x24/0x30 [ 45.396748] ? oom_badness+0xd1/0x980 [ 45.400527] ? lock_release+0xa40/0xa40 [ 45.404487] ? find_lock_task_mm+0x460/0x460 [ 45.408878] ? find_held_lock+0x35/0x1d0 [ 45.412925] ? out_of_memory+0xb3a/0x1220 [ 45.417074] ? lock_downgrade+0x980/0x980 [ 45.421220] ? lock_release+0xa40/0xa40 [ 45.425183] ? lock_acquire+0x1d5/0x580 [ 45.429155] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 45.434088] ? oom_evaluate_task+0x284/0x480 [ 45.438511] out_of_memory+0x86d/0x1220 [ 45.442484] ? oom_killer_disable+0x310/0x310 [ 45.446957] ? mutex_trylock+0x23a/0x2d0 [ 45.451001] ? __lock_is_held+0xb6/0x140 [ 45.455056] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 45.460502] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 45.465343] ? trace_hardirqs_on+0xd/0x10 [ 45.469517] ? warn_alloc+0x2b0/0x2b0 [ 45.473307] ? lock_downgrade+0x980/0x980 [ 45.477467] ? __lock_is_held+0xb6/0x140 [ 45.481544] ? find_get_entry+0x53c/0x9e0 [ 45.485722] ? __lock_acquire+0x664/0x3e00 [ 45.489974] ? __lock_is_held+0xb6/0x140 [ 45.494052] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 45.499949] ? __might_sleep+0x95/0x190 [ 45.503926] __alloc_pages_nodemask+0x9fb/0xd80 [ 45.508590] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 45.513598] ? add_to_page_cache_lru+0x510/0x510 [ 45.518358] ? check_noncircular+0x20/0x20 [ 45.522580] ? check_noncircular+0x20/0x20 [ 45.526792] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 45.532661] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 45.537436] alloc_pages_current+0xb6/0x1e0 [ 45.541766] __page_cache_alloc+0x334/0x500 [ 45.546080] ? rcu_read_lock_held+0xa9/0xc0 [ 45.550397] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 45.557766] filemap_fault+0xefc/0x1c20 [ 45.561736] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 45.566921] ? __lock_page_or_retry+0x4f0/0x4f0 [ 45.571589] ? filemap_map_pages+0x942/0x15d0 [ 45.576100] ? find_get_entries_tag+0xeb0/0xeb0 [ 45.580761] ? __unlock_page_memcg+0x72/0x100 [ 45.585247] ? check_noncircular+0x20/0x20 [ 45.589487] ? print_irqtrace_events+0x270/0x270 [ 45.594234] ? print_irqtrace_events+0x270/0x270 [ 45.598975] ? print_irqtrace_events+0x270/0x270 [ 45.603717] ? find_held_lock+0x35/0x1d0 [ 45.607794] ? lock_acquire+0x1d5/0x580 [ 45.611759] ? lock_acquire+0x1d5/0x580 [ 45.615725] ? ext4_filemap_fault+0x7a/0xad [ 45.620042] ? __lock_acquire+0x664/0x3e00 [ 45.624274] ? lock_release+0xa40/0xa40 [ 45.628240] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 45.634124] ? rcu_note_context_switch+0x710/0x710 [ 45.639056] ? __might_sleep+0x95/0x190 [ 45.643042] ? down_read+0x96/0x150 [ 45.646655] ? ext4_filemap_fault+0x7a/0xad [ 45.650957] ? __down_interruptible+0x6b0/0x6b0 [ 45.655631] ext4_filemap_fault+0x82/0xad [ 45.659777] __do_fault+0xeb/0x30f [ 45.663316] ? pte_offset_kernel+0xc7/0xc7 [ 45.667547] ? do_raw_spin_trylock+0x190/0x190 [ 45.672123] ? __lock_acquire+0x664/0x3e00 [ 45.676359] ? check_noncircular+0x20/0x20 [ 45.680587] __handle_mm_fault+0x1d8f/0x3ce0 [ 45.684982] ? __pmd_alloc+0x4e0/0x4e0 [ 45.688858] ? find_held_lock+0x35/0x1d0 [ 45.692906] ? handle_mm_fault+0x248/0x8d0 [ 45.697129] ? lock_downgrade+0x980/0x980 [ 45.701316] handle_mm_fault+0x334/0x8d0 [ 45.705366] ? down_read_trylock+0xdb/0x170 [ 45.709680] ? __do_page_fault+0x32d/0xc90 [ 45.713911] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 45.718489] ? vmacache_find+0x5f/0x280 [ 45.722452] ? find_vma+0x30/0x150 [ 45.725983] __do_page_fault+0x5c9/0xc90 [ 45.730035] ? vfs_copy_file_range+0x940/0x940 [ 45.734608] ? mm_fault_error+0x2c0/0x2c0 [ 45.738736] ? avc_policy_seqno+0x9/0x20 [ 45.742783] do_page_fault+0xee/0x720 [ 45.746565] ? __do_page_fault+0xc90/0xc90 [ 45.750781] ? vfs_read+0x165/0x350 [ 45.754399] ? SyS_read+0x184/0x220 [ 45.758011] ? generic_file_llseek_size+0xe1/0x2e0 [ 45.762926] ? retint_user+0x18/0x18 [ 45.766621] ? page_fault+0x36/0x60 [ 45.770233] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 45.775079] ? page_fault+0x36/0x60 [ 45.778692] page_fault+0x4c/0x60 [ 45.782124] RIP: 0033:0x7f74ea39deae [ 45.785823] RSP: 002b:00007ffe8a9d3810 EFLAGS: 00010202 [ 45.791178] RAX: 0000000000000000 RBX: 0000000001d3f8c0 RCX: 0000000001d3f8c0 [ 45.798435] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 0000000001bbb300 [ 45.805691] RBP: 00007ffe8a9d3950 R08: 0000000001bbb2f0 R09: 0000000000000000 [ 45.812949] R10: 0000000000000022 R11: 0000000000000202 R12: 0000000000000000 [ 45.820201] R13: 0000000000000004 R14: 0000000000000008 R15: 0000000000000018 [ 45.827598] Mem-Info: [ 45.830089] active_anon:3018 inactive_anon:62 isolated_anon:0 [ 45.830089] active_file:17 inactive_file:17 isolated_file:0 [ 45.830089] unevictable:0 dirty:0 writeback:0 unstable:0 [ 45.830089] slab_reclaimable:7308 slab_unreclaimable:83147 [ 45.830089] mapped:2 shmem:70 pagetables:307 bounce:0 [ 45.830089] free:24124 free_pcp:31 free_cma:0 [ 45.862139] Node 0 active_anon:12072kB inactive_anon:248kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 4096kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 45.888962] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 45.915118] lowmem_reserve[]: 0 2870 6381 6381 [ 45.919741] Node 0 DMA32 free:44124kB min:30332kB low:37912kB high:45492kB active_anon:32kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2942320kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 45.947042] lowmem_reserve[]: 0 0 3510 3510 [ 45.951406] Node 0 Normal free:36464kB min:37084kB low:46352kB high:55620kB active_anon:12040kB inactive_anon:248kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:0kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3072kB pagetables:1228kB bounce:0kB free_pcp:124kB local_pcp:0kB free_cma:0kB [ 45.980077] lowmem_reserve[]: 0 0 0 0 [ 45.983925] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 45.997609] Node 0 DMA32: 7*4kB (UM) 6*8kB (UM) 3*16kB (M) 1*32kB (M) 3*64kB (M) 4*128kB (M) 5*256kB (UM) 4*512kB (UM) 3*1024kB (UM) 2*2048kB (M) 8*4096kB (M) = 44124kB [ 46.012885] Node 0 Normal: 410*4kB (UME) 393*8kB (UME) 228*16kB (UME) 158*32kB (UM) 77*64kB (UM) 47*128kB (UM) 21*256kB (UM) 1*512kB (U) 0*1024kB 3*2048kB (M) 0*4096kB = 36464kB [ 46.029035] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 46.037637] 104 total pagecache pages [ 46.041477] 0 pages in swap cache [ 46.044970] Swap cache stats: add 0, delete 0, find 0/0 [ 46.050334] Free swap = 0kB [ 46.053364] Total swap = 0kB [ 46.056396] 1965979 pages RAM [ 46.059518] 0 pages HighMem/MovableOnly [ 46.063503] 327765 pages reserved [ 46.066961] Unreclaimable slab info: [ 46.070689] Name Used Total [ 46.076246] hashtab_node 118KB 119KB [ 46.081629] ebitmap_node 382KB 385KB [ 46.087041] avtab_node 1012KB 1013KB [ 46.092437] TIPC 1KB 7KB [ 46.097828] SCTPv6 2KB 4KB [ 46.103220] DCCPv6 2KB 7KB [ 46.108606] DCCP 2KB 6KB [ 46.114035] fib6_nodes 0KB 4KB [ 46.119426] ip6_dst_cache 7KB 7KB [ 46.124811] RAWv6 9KB 13KB [ 46.130198] UDPv6 12KB 14KB [ 46.135586] TCPv6 2KB 5KB [ 46.140991] sd_ext_cdb 0KB 3KB [ 46.146364] scsi_sense_cache 116KB 120KB [ 46.151739] virtio_scsi_cmd 16KB 16KB [ 46.157126] sgpool-128 8KB 8KB [ 46.162516] sgpool-64 4KB 6KB [ 46.167902] sgpool-32 338KB 338KB [ 46.173280] sgpool-16 77KB 78KB [ 46.178655] sgpool-8 240KB 240KB [ 46.184045] cfq_io_cq 15KB 19KB [ 46.189432] cfq_queue 24KB 27KB [ 46.194820] mqueue_inode_cache 1KB 7KB [ 46.200291] nfs_commit_data 3KB 7KB [ 46.205679] nfs_write_data 34KB 37KB [ 46.211069] jbd2_inode 1KB 3KB [ 46.216458] ext4_system_zone 0KB 3KB [ 46.221871] bio-1 1KB 3KB [ 46.227244] rpc_buffers 17KB 19KB [ 46.232621] rpc_tasks 2KB 3KB [ 46.238007] UNIX 773KB 773KB [ 46.243400] tcp_bind_bucket 0KB 4KB [ 46.248778] ip_fib_trie 0KB 3KB [ 46.254159] ip_fib_alias 0KB 3KB [ 46.259542] ip_dst_cache 3KB 4KB [ 46.264938] RAW 5KB 7KB [ 46.270328] UDP 29KB 31KB [ 46.275707] TCP 7KB 15KB [ 46.281091] hugetlbfs_inode_cache 1KB 7KB [ 46.286824] eventpoll_pwq 10KB 11KB [ 46.292208] eventpoll_epi 19KB 23KB [ 46.297602] inotify_inode_mark 3KB 7KB [ 46.303094] request_queue 36KB 90KB [ 46.308486] blkdev_ioc 21KB 23KB [ 46.313872] bio-0 483KB 483KB [ 46.319243] biovec-(1<<(21-12)) 437KB 437KB [ 46.324796] biovec-64 339KB 346KB [ 46.330183] biovec-16 58KB 60KB [ 46.335570] bio_integrity_payload 0KB 4KB [ 46.341300] khugepaged_mm_slot 0KB 3KB [ 46.346778] uid_cache 0KB 3KB [ 46.352163] dmaengine-unmap-2 0KB 3KB [ 46.357550] audit_buffer 0KB 3KB [ 46.362939] skbuff_fclone_cache 136KB 138KB [ 46.368486] skbuff_head_cache 1672KB 1672KB [ 46.373861] configfs_dir_cache 0KB 4KB [ 46.379331] file_lock_cache 159KB 162KB [ 46.384717] file_lock_ctx 1KB 3KB [ 46.390108] fsnotify_mark_connector 2KB 3KB [ 46.396000] shmem_inode_cache 1046KB 1050KB [ 46.401417] task_delay_info 318KB 339KB [ 46.406806] sigqueue 364KB 370KB [ 46.412174] kernfs_node_cache 2284KB 2287KB [ 46.417549] mnt_cache 15KB 16KB [ 46.422932] filp 8296KB 8752KB [ 46.428313] names_cache 110695KB 110733KB [ 46.433715] avc_node 37KB 43KB [ 46.439100] selinux_file_security 420KB 492KB [ 46.444833] selinux_inode_security 1952KB 1956KB [ 46.450636] key_jar 3KB 7KB [ 46.456038] nsproxy 0KB 3KB [ 46.461429] vm_area_struct 18707KB 18721KB [ 46.466817] mm_struct 4525KB 4539KB [ 46.472204] fs_cache 425KB 432KB [ 46.477590] files_cache 1595KB 1601KB [ 46.482978] signal_cache 2542KB 2558KB [ 46.488352] sighand_cache 222KB 319KB [ 46.493725] task_struct 10859KB 10871KB [ 46.499119] cred_jar 2356KB 2364KB [ 46.504507] anon_vma_chain 7848KB 7859KB [ 46.509896] anon_vma 131KB 354KB [ 46.515263] pid 221KB 240KB [ 46.520638] Acpi-Operand 106KB 170KB [ 46.526041] Acpi-Namespace 19KB 23KB [ 46.531431] numa_policy 0KB 3KB [ 46.536816] debug_objects_cache 537KB 539KB [ 46.542372] trace_event_file 145KB 147KB [ 46.547765] ftrace_event_field 257KB 259KB [ 46.553245] pool_workqueue 24KB 28KB [ 46.558629] page->ptl 3096KB 3103KB [ 46.564095] kmalloc-262144 1032KB 1032KB [ 46.569487] kmalloc-131072 650KB 650KB [ 46.574853] kmalloc-65536 264KB 264KB [ 46.580228] kmalloc-32768 825KB 825KB [ 46.585600] kmalloc-16384 181KB 181KB [ 46.590976] kmalloc-8192 519KB 519KB [ 46.596363] kmalloc-4096 6668KB 6706KB [ 46.601741] kmalloc-2048 3221KB 3225KB [ 46.607121] kmalloc-1024 3945KB 3945KB [ 46.612488] kmalloc-512 2775KB 2775KB [ 46.617863] kmalloc-256 1936KB 2452KB [ 46.623244] kmalloc-128 405KB 523KB [ 46.628617] kmalloc-96 2062KB 2064KB [ 46.633990] kmalloc-64 2468KB 2472KB [ 46.639387] kmalloc-32 2391KB 2401KB [ 46.644756] kmalloc-192 911KB 912KB [ 46.650134] kmem_cache 101KB 105KB [ 46.655500] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 46.664112] [ 1815] 0 1815 5366 167 94208 0 -1000 udevd [ 46.672265] [ 3505] 0 3505 14298 218 118784 0 0 rsyslogd [ 46.680695] [ 3551] 0 3551 4725 49 86016 0 0 cron [ 46.688783] [ 3578] 0 3578 3736 45 69632 0 0 mcstransd [ 46.697305] [ 3606] 0 3606 12490 153 139264 0 -1000 sshd [ 46.705390] [ 3630] 0 3630 3694 39 69632 0 0 getty [ 46.713556] [ 3631] 0 3631 3694 41 73728 0 0 getty [ 46.721713] [ 3632] 0 3632 3694 41 73728 0 0 getty [ 46.729878] [ 3633] 0 3633 3694 42 73728 0 0 getty [ 46.738052] [ 3634] 0 3634 3694 41 73728 0 0 getty [ 46.746226] [ 3635] 0 3635 3694 40 77824 0 0 getty [ 46.754451] [ 3636] 0 3636 3649 39 77824 0 0 getty [ 46.762614] [ 3638] 0 3638 5681 455 90112 0 -1000 udevd [ 46.770764] [ 3639] 0 3639 5681 454 90112 0 -1000 udevd [ 46.778931] [ 3656] 0 3656 17821 197 184320 0 0 sshd [ 46.787041] [ 3658] 0 3658 280 1 32768 0 0 syzkaller617356 [ 46.796073] [ 3659] 0 3659 4375 0 32768 0 0 syzkaller617356 [ 46.805095] [ 3660] 0 3660 4375 0 32768 0 0 syzkaller617356 [ 46.814112] [ 3661] 0 3661 4375 0 32768 0 0 syzkaller617356 [ 46.823672] [ 3662] 0 3662 4375 0 32768 0 0 syzkaller617356 [ 46.832695] [ 3663] 0 3663 4375 0 32768 0 0 syzkaller617356 [ 46.841714] [ 3664] 0 3664 4375 0 32768 0 0 syzkaller617356 [ 46.850732] [ 3665] 0 3665 4375 522 36864 0 0 syzkaller617356 [ 46.859750] [ 3666] 0 3666 4375 522 36864 0 0 syzkaller617356 [ 46.868771] Out of memory: Kill process 3665 (syzkaller617356) score 0 or sacrifice child [ 46.877157] Killed process 3665 (syzkaller617356) total-vm:17500kB, anon-rss:2088kB, file-rss:0kB, shmem-rss:0kB [ 46.895666] oom_reaper: reaped process 3665 (syzkaller617356), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 46.907087] udevd invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=-1000 [ 46.918572] udevd cpuset=/ mems_allowed=0 [ 46.922756] CPU: 1 PID: 3638 Comm: udevd Not tainted 4.15.0-rc7+ #191 [ 46.929316] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.938662] Call Trace: [ 46.941248] dump_stack+0x194/0x257 [ 46.944867] ? arch_local_irq_restore+0x53/0x53 [ 46.949528] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 46.954730] dump_header+0x28c/0xe1e [ 46.958444] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 46.963635] ? pagefault_out_of_memory+0x152/0x152 [ 46.968559] ? check_noncircular+0x20/0x20 [ 46.972787] ? print_irqtrace_events+0x270/0x270 [ 46.977538] ? __lock_acquire+0x664/0x3e00 [ 46.981768] ? check_noncircular+0x20/0x20 [ 46.985989] ? find_held_lock+0x35/0x1d0 [ 46.990051] ? check_noncircular+0x20/0x20 [ 46.994279] ? task_will_free_mem+0x252/0xaa0 [ 46.998768] ? print_irqtrace_events+0x270/0x270 [ 47.003524] ? ___ratelimit+0x30d/0x630 [ 47.007492] ? lock_downgrade+0x980/0x980 [ 47.011639] ? lock_release+0xa40/0xa40 [ 47.015613] ? mark_held_locks+0xaf/0x100 [ 47.019755] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 47.024847] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 47.029845] ? trace_hardirqs_on+0xd/0x10 [ 47.033973] ? ___ratelimit+0x95/0x630 [ 47.037842] ? idr_get_free_cmn+0xfd0/0xfd0 [ 47.042152] ? check_noncircular+0x20/0x20 [ 47.046376] ? find_held_lock+0x138/0x1d0 [ 47.050530] oom_kill_process+0x8b5/0x14a0 [ 47.054769] ? has_ns_capability_noaudit+0x163/0x2a0 [ 47.059862] ? lock_downgrade+0x980/0x980 [ 47.063996] ? oom_evaluate_task+0x480/0x480 [ 47.068410] ? security_capable_noaudit+0x8b/0xc0 [ 47.073252] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 47.078353] ? has_capability+0x30/0x30 [ 47.082319] ? do_raw_spin_trylock+0x190/0x190 [ 47.086893] ? check_noncircular+0x20/0x20 [ 47.091124] ? has_capability_noaudit+0x24/0x30 [ 47.095779] ? oom_badness+0xd1/0x980 [ 47.099561] ? lock_release+0xa40/0xa40 [ 47.103521] ? do_try_to_free_pages+0xc53/0x1020 [ 47.108267] ? find_lock_task_mm+0x460/0x460 [ 47.112681] ? find_held_lock+0x35/0x1d0 [ 47.116742] ? out_of_memory+0xb3a/0x1220 [ 47.120870] ? lock_downgrade+0x980/0x980 [ 47.124999] ? lock_release+0xa40/0xa40 [ 47.128954] ? lock_acquire+0x1d5/0x580 [ 47.132908] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 47.137824] ? oom_evaluate_task+0x284/0x480 [ 47.142226] out_of_memory+0x86d/0x1220 [ 47.146208] ? oom_killer_disable+0x310/0x310 [ 47.150691] ? mutex_trylock+0x23a/0x2d0 [ 47.154740] ? __lock_is_held+0xb6/0x140 [ 47.158779] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 47.164234] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 47.169087] ? trace_hardirqs_on+0xd/0x10 [ 47.173256] ? warn_alloc+0x2b0/0x2b0 [ 47.177049] ? lock_downgrade+0x980/0x980 [ 47.181204] ? __lock_is_held+0xb6/0x140 [ 47.185280] ? find_get_entry+0x53c/0x9e0 [ 47.189455] ? __lock_acquire+0x664/0x3e00 [ 47.193702] ? __lock_is_held+0xb6/0x140 [ 47.197784] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 47.203675] ? __might_sleep+0x95/0x190 [ 47.207649] __alloc_pages_nodemask+0x9fb/0xd80 [ 47.212326] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 47.217343] ? add_to_page_cache_lru+0x510/0x510 [ 47.222106] ? check_noncircular+0x20/0x20 [ 47.226334] ? check_noncircular+0x20/0x20 [ 47.230561] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 47.236451] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 47.241235] alloc_pages_current+0xb6/0x1e0 [ 47.245561] __page_cache_alloc+0x334/0x500 [ 47.249870] ? rcu_read_lock_held+0xa9/0xc0 [ 47.254182] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 47.261556] filemap_fault+0xefc/0x1c20 [ 47.265527] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 47.270729] ? __lock_page_or_retry+0x4f0/0x4f0 [ 47.275393] ? filemap_map_pages+0x942/0x15d0 [ 47.279898] ? find_get_entries_tag+0xeb0/0xeb0 [ 47.284560] ? __unlock_page_memcg+0x72/0x100 [ 47.289045] ? check_noncircular+0x20/0x20 [ 47.293272] ? print_irqtrace_events+0x270/0x270 [ 47.298013] ? print_irqtrace_events+0x270/0x270 [ 47.302750] ? print_irqtrace_events+0x270/0x270 [ 47.307486] ? find_held_lock+0x35/0x1d0 [ 47.311535] ? lock_acquire+0x1d5/0x580 [ 47.315488] ? lock_acquire+0x1d5/0x580 [ 47.319451] ? ext4_filemap_fault+0x7a/0xad [ 47.323753] ? __lock_acquire+0x664/0x3e00 [ 47.327978] ? lock_release+0xa40/0xa40 [ 47.331938] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 47.337805] ? rcu_note_context_switch+0x710/0x710 [ 47.342739] ? __might_sleep+0x95/0x190 [ 47.346703] ? down_read+0x96/0x150 [ 47.350309] ? ext4_filemap_fault+0x7a/0xad [ 47.354621] ? __down_interruptible+0x6b0/0x6b0 [ 47.359285] ext4_filemap_fault+0x82/0xad [ 47.363426] __do_fault+0xeb/0x30f [ 47.366963] ? pte_offset_kernel+0xc7/0xc7 [ 47.371194] ? do_raw_spin_trylock+0x190/0x190 [ 47.375773] ? __lock_acquire+0x664/0x3e00 [ 47.379996] ? check_noncircular+0x20/0x20 [ 47.384234] __handle_mm_fault+0x1d8f/0x3ce0 [ 47.388647] ? __pmd_alloc+0x4e0/0x4e0 [ 47.392540] ? find_held_lock+0x35/0x1d0 [ 47.396610] ? handle_mm_fault+0x248/0x8d0 [ 47.400833] ? lock_downgrade+0x980/0x980 [ 47.404981] handle_mm_fault+0x334/0x8d0 [ 47.409028] ? down_read_trylock+0xdb/0x170 [ 47.413344] ? __do_page_fault+0x32d/0xc90 [ 47.417575] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 47.422145] ? vmacache_find+0x5f/0x280 [ 47.426119] ? find_vma+0x30/0x150 [ 47.429659] __do_page_fault+0x5c9/0xc90 [ 47.433718] ? vfs_copy_file_range+0x940/0x940 [ 47.438299] ? mm_fault_error+0x2c0/0x2c0 [ 47.442439] ? avc_policy_seqno+0x9/0x20 [ 47.446485] do_page_fault+0xee/0x720 [ 47.450273] ? __do_page_fault+0xc90/0xc90 [ 47.454499] ? vfs_read+0x165/0x350 [ 47.458111] ? SyS_read+0x184/0x220 [ 47.461714] ? generic_file_llseek_size+0xe1/0x2e0 [ 47.466623] ? retint_user+0x18/0x18 [ 47.470329] ? page_fault+0x36/0x60 [ 47.473935] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 47.478761] ? page_fault+0x36/0x60 [ 47.482369] page_fault+0x4c/0x60 [ 47.485796] RIP: 0033:0x7f74ea39deae [ 47.489493] RSP: 002b:00007ffe8a9d3810 EFLAGS: 00010202 [ 47.494840] RAX: 0000000000000000 RBX: 0000000001d3f8c0 RCX: 0000000001d3f8c0 [ 47.502092] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 0000000001bbb300 [ 47.509356] RBP: 00007ffe8a9d3950 R08: 0000000001bbb2f0 R09: 0000000000000000 [ 47.516615] R10: 0000000000000022 R11: 0000000000000202 R12: 0000000000000000 [ 47.523869] R13: 0000000000000004 R14: 0000000000000008 R15: 0000000000000018 [ 47.531195] Mem-Info: [ 47.533632] active_anon:2502 inactive_anon:62 isolated_anon:0 [ 47.533632] active_file:17 inactive_file:17 isolated_file:0 [ 47.533632] unevictable:0 dirty:0 writeback:0 unstable:0 [ 47.533632] slab_reclaimable:7308 slab_unreclaimable:83122 [ 47.533632] mapped:2 shmem:70 pagetables:307 bounce:0 [ 47.533632] free:21287 free_pcp:87 free_cma:0 [ 47.565713] Node 0 active_anon:10008kB inactive_anon:248kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 4096kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 47.592545] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 47.618682] lowmem_reserve[]: 0 2870 6381 6381 [ 47.623294] Node 0 DMA32 free:44124kB min:30332kB low:37912kB high:45492kB active_anon:32kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2942320kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 47.650559] lowmem_reserve[]: 0 0 3510 3510 [ 47.654895] Node 0 Normal free:25116kB min:37084kB low:46352kB high:55620kB active_anon:9976kB inactive_anon:248kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:0kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3072kB pagetables:1228kB bounce:0kB free_pcp:348kB local_pcp:100kB free_cma:0kB [ 47.683658] lowmem_reserve[]: 0 0 0 0 [ 47.687501] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 47.701151] Node 0 DMA32: 7*4kB (UM) 6*8kB (UM) 3*16kB (M) 1*32kB (M) 3*64kB (M) 4*128kB (M) 5*256kB (UM) 4*512kB (UM) 3*1024kB (UM) 2*2048kB (M) 8*4096kB (M) = 44124kB [ 47.716468] Node 0 Normal: 345*4kB (UME) 347*8kB (UME) 212*16kB (UME) 139*32kB (UM) 63*64kB (UM) 37*128kB (UM) 17*256kB (M) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 25116kB [ 47.731751] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 47.740351] 104 total pagecache pages [ 47.744174] 0 pages in swap cache [ 47.747651] Swap cache stats: add 0, delete 0, find 0/0 [ 47.753033] Free swap = 0kB [ 47.756065] Total swap = 0kB [ 47.759097] 1965979 pages RAM [ 47.762199] 0 pages HighMem/MovableOnly [ 47.766179] 327765 pages reserved [ 47.769631] Unreclaimable slab info: [ 47.773355] Name Used Total [ 47.778895] hashtab_node 118KB 119KB [ 47.784269] ebitmap_node 382KB 385KB [ 47.789638] avtab_node 1012KB 1013KB [ 47.795045] TIPC 1KB 7KB [ 47.800414] SCTPv6 2KB 4KB [ 47.805795] DCCPv6 2KB 7KB [ 47.811183] DCCP 2KB 6KB [ 47.816587] fib6_nodes 0KB 4KB [ 47.821953] ip6_dst_cache 6KB 7KB [ 47.827333] RAWv6 9KB 13KB [ 47.832701] UDPv6 12KB 14KB [ 47.838074] TCPv6 2KB 5KB [ 47.843448] sd_ext_cdb 0KB 3KB [ 47.848820] scsi_sense_cache 116KB 120KB [ 47.854199] virtio_scsi_cmd 16KB 16KB [ 47.859586] sgpool-128 8KB 8KB [ 47.865475] sgpool-64 4KB 6KB [ 47.870849] sgpool-32 338KB 338KB [ 47.876235] sgpool-16 77KB 78KB [ 47.881618] sgpool-8 239KB 240KB [ 47.886995] cfq_io_cq 15KB 19KB [ 47.892381] cfq_queue 24KB 27KB [ 47.897752] mqueue_inode_cache 1KB 7KB [ 47.903230] nfs_commit_data 3KB 7KB [ 47.908602] nfs_write_data 34KB 37KB [ 47.913981] jbd2_inode 1KB 3KB [ 47.919367] ext4_system_zone 0KB 3KB [ 47.924765] bio-1 1KB 3KB [ 47.930141] rpc_buffers 17KB 19KB [ 47.935515] rpc_tasks 2KB 3KB [ 47.940911] UNIX 773KB 773KB [ 47.946288] tcp_bind_bucket 0KB 4KB [ 47.951666] ip_fib_trie 0KB 3KB [ 47.957048] ip_fib_alias 0KB 3KB [ 47.962433] ip_dst_cache 3KB 4KB [ 47.967807] RAW 5KB 7KB [ 47.973191] UDP 29KB 31KB [ 47.978563] TCP 7KB 15KB [ 47.983937] hugetlbfs_inode_cache 1KB 7KB [ 47.989675] eventpoll_pwq 10KB 11KB [ 47.995050] eventpoll_epi 19KB 23KB [ 48.000429] inotify_inode_mark 3KB 7KB [ 48.005911] request_queue 33KB 67KB [ 48.011279] blkdev_ioc 21KB 23KB [ 48.016655] bio-0 483KB 483KB [ 48.022038] biovec-(1<<(21-12)) 437KB 437KB [ 48.027596] biovec-64 338KB 346KB [ 48.032966] biovec-16 57KB 60KB [ 48.038340] bio_integrity_payload 0KB 4KB [ 48.044057] khugepaged_mm_slot 0KB 3KB [ 48.049506] uid_cache 0KB 3KB [ 48.054877] dmaengine-unmap-2 0KB 3KB [ 48.060261] audit_buffer 0KB 3KB [ 48.065628] skbuff_fclone_cache 136KB 138KB [ 48.071202] skbuff_head_cache 1671KB 1672KB [ 48.076569] configfs_dir_cache 0KB 4KB [ 48.082048] file_lock_cache 159KB 162KB [ 48.087424] file_lock_ctx 1KB 3KB [ 48.092782] fsnotify_mark_connector 2KB 3KB [ 48.098680] shmem_inode_cache 1046KB 1050KB [ 48.104063] task_delay_info 318KB 339KB [ 48.109449] sigqueue 364KB 370KB [ 48.114822] kernfs_node_cache 2284KB 2287KB [ 48.120203] mnt_cache 15KB 16KB [ 48.125572] filp 8263KB 8726KB [ 48.130948] names_cache 110687KB 110716KB [ 48.136319] avc_node 37KB 43KB [ 48.141699] selinux_file_security 416KB 492KB [ 48.147414] selinux_inode_security 1952KB 1956KB [ 48.153225] key_jar 3KB 7KB [ 48.158618] nsproxy 0KB 3KB [ 48.163991] vm_area_struct 18692KB 18721KB [ 48.169377] mm_struct 4525KB 4539KB [ 48.174758] fs_cache 425KB 432KB [ 48.180132] files_cache 1594KB 1601KB [ 48.185503] signal_cache 2542KB 2558KB [ 48.190879] sighand_cache 217KB 312KB [ 48.196267] task_struct 10853KB 10859KB [ 48.201663] cred_jar 2356KB 2364KB [ 48.207044] anon_vma_chain 7846KB 7859KB [ 48.212426] anon_vma 125KB 354KB [ 48.217791] pid 221KB 240KB [ 48.223175] Acpi-Operand 106KB 170KB [ 48.228542] Acpi-Namespace 19KB 23KB [ 48.233926] numa_policy 0KB 3KB [ 48.239309] debug_objects_cache 537KB 539KB [ 48.244865] trace_event_file 145KB 147KB [ 48.250230] ftrace_event_field 257KB 259KB [ 48.255692] pool_workqueue 24KB 28KB [ 48.261074] page->ptl 3095KB 3103KB [ 48.266489] kmalloc-262144 1032KB 1032KB [ 48.271858] kmalloc-131072 650KB 650KB [ 48.277240] kmalloc-65536 264KB 264KB [ 48.282607] kmalloc-32768 825KB 825KB [ 48.287977] kmalloc-16384 181KB 181KB [ 48.293361] kmalloc-8192 519KB 519KB [ 48.298729] kmalloc-4096 6659KB 6689KB [ 48.304103] kmalloc-2048 3221KB 3225KB [ 48.309469] kmalloc-1024 3944KB 3945KB [ 48.314842] kmalloc-512 2773KB 2775KB [ 48.320223] kmalloc-256 1919KB 2430KB [ 48.325607] kmalloc-128 405KB 523KB [ 48.330978] kmalloc-96 2072KB 2072KB [ 48.336353] kmalloc-64 2476KB 2476KB [ 48.341720] kmalloc-32 2388KB 2401KB [ 48.347093] kmalloc-192 916KB 916KB [ 48.352458] kmem_cache 101KB 105KB [ 48.357828] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 48.366613] [ 1815] 0 1815 5366 167 94208 0 -1000 udevd [ 48.374783] [ 3505] 0 3505 14298 218 118784 0 0 rsyslogd [ 48.383211] [ 3551] 0 3551 4725 49 86016 0 0 cron [ 48.391300] [ 3578] 0 3578 3736 45 69632 0 0 mcstransd [ 48.399824] [ 3606] 0 3606 12490 153 139264 0 -1000 sshd [ 48.407904] [ 3630] 0 3630 3694 39 69632 0 0 getty [ 48.416088] [ 3631] 0 3631 3694 41 73728 0 0 getty [ 48.424266] [ 3632] 0 3632 3694 41 73728 0 0 getty [ 48.432442] [ 3633] 0 3633 3694 42 73728 0 0 getty [ 48.440609] [ 3634] 0 3634 3694 41 73728 0 0 getty [ 48.448782] [ 3635] 0 3635 3694 40 77824 0 0 getty [ 48.456954] [ 3636] 0 3636 3649 39 77824 0 0 getty [ 48.465133] [ 3638] 0 3638 5681 455 90112 0 -1000 udevd [ 48.473307] [ 3639] 0 3639 5681 454 90112 0 -1000 udevd [ 48.481478] [ 3656] 0 3656 17821 197 184320 0 0 sshd [ 48.489564] [ 3658] 0 3658 280 1 32768 0 0 syzkaller617356 [ 48.498593] [ 3659] 0 3659 4375 0 32768 0 0 syzkaller617356 [ 48.507637] [ 3660] 0 3660 4375 0 32768 0 0 syzkaller617356 [ 48.516663] [ 3661] 0 3661 4375 0 32768 0 0 syzkaller617356 [ 48.525696] [ 3662] 0 3662 4375 0 32768 0 0 syzkaller617356 [ 48.534722] [ 3663] 0 3663 4375 0 32768 0 0 syzkaller617356 [ 48.543756] [ 3664] 0 3664 4375 0 32768 0 0 syzkaller617356 [ 48.552781] [ 3665] 0 3665 4375 0 32768 0 0 syzkaller617356 [ 48.561813] [ 3666] 0 3666 4375 522 36864 0 0 syzkaller617356 [ 48.570846] Out of memory: Kill process 3666 (syzkaller617356) score 0 or sacrifice child [ 48.579195] Killed process 3666 (syzkaller617356) total-vm:17500kB, anon-rss:2088kB, file-rss:0kB, shmem-rss:0kB [ 48.595645] oom_reaper: reaped process 3666 (syzkaller617356), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 48.606956] udevd invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=-1000 [ 48.619244] udevd cpuset=/ mems_allowed=0 [ 48.623451] CPU: 0 PID: 3638 Comm: udevd Not tainted 4.15.0-rc7+ #191 [ 48.630015] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.639358] Call Trace: [ 48.641942] dump_stack+0x194/0x257 [ 48.645567] ? arch_local_irq_restore+0x53/0x53 [ 48.650232] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 48.655427] dump_header+0x28c/0xe1e [ 48.659145] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 48.664332] ? pagefault_out_of_memory+0x152/0x152 [ 48.669254] ? check_noncircular+0x20/0x20 [ 48.673483] ? print_irqtrace_events+0x270/0x270 [ 48.678228] ? __lock_acquire+0x664/0x3e00 [ 48.682451] ? check_noncircular+0x20/0x20 [ 48.686687] ? print_irqtrace_events+0x270/0x270 [ 48.691436] ? check_noncircular+0x20/0x20 [ 48.695653] ? task_will_free_mem+0x252/0xaa0 [ 48.700137] ? print_irqtrace_events+0x270/0x270 [ 48.704888] ? ___ratelimit+0x30d/0x630 [ 48.708854] ? lock_downgrade+0x980/0x980 [ 48.712990] ? lock_release+0xa40/0xa40 [ 48.716959] ? mark_held_locks+0xaf/0x100 [ 48.721095] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 48.726185] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 48.731194] ? trace_hardirqs_on+0xd/0x10 [ 48.735337] ? ___ratelimit+0x95/0x630 [ 48.739225] ? idr_get_free_cmn+0xfd0/0xfd0 [ 48.743554] ? check_noncircular+0x20/0x20 [ 48.747775] ? find_held_lock+0x138/0x1d0 [ 48.751915] oom_kill_process+0x8b5/0x14a0 [ 48.756140] ? has_ns_capability_noaudit+0x163/0x2a0 [ 48.761239] ? check_noncircular+0x20/0x20 [ 48.765472] ? oom_evaluate_task+0x480/0x480 [ 48.769876] ? security_capable_noaudit+0x8b/0xc0 [ 48.774719] ? find_held_lock+0x35/0x1d0 [ 48.778766] ? check_noncircular+0x20/0x20 [ 48.782985] ? oom_unkillable_task+0x394/0x4c0 [ 48.787550] ? lock_downgrade+0x980/0x980 [ 48.791687] ? lock_release+0xa40/0xa40 [ 48.795652] ? do_try_to_free_pages+0xc53/0x1020 [ 48.800405] ? find_lock_task_mm+0x460/0x460 [ 48.804810] ? find_held_lock+0x35/0x1d0 [ 48.808863] ? out_of_memory+0xb3a/0x1220 [ 48.812995] ? lock_downgrade+0x980/0x980 [ 48.817129] ? lock_release+0xa40/0xa40 [ 48.821089] ? lock_acquire+0x1d5/0x580 [ 48.825061] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 48.829984] ? oom_evaluate_task+0x284/0x480 [ 48.834391] out_of_memory+0x86d/0x1220 [ 48.838372] ? oom_killer_disable+0x310/0x310 [ 48.842850] ? mutex_trylock+0x23a/0x2d0 [ 48.846895] ? __lock_is_held+0xb6/0x140 [ 48.850944] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 48.856408] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 48.861246] ? trace_hardirqs_on+0xd/0x10 [ 48.865432] ? warn_alloc+0x2b0/0x2b0 [ 48.869240] ? lock_downgrade+0x980/0x980 [ 48.873397] ? __lock_is_held+0xb6/0x140 [ 48.877456] ? find_get_entry+0x53c/0x9e0 [ 48.881624] ? __lock_acquire+0x664/0x3e00 [ 48.885872] ? __lock_is_held+0xb6/0x140 [ 48.889932] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 48.895804] ? __might_sleep+0x95/0x190 [ 48.899772] __alloc_pages_nodemask+0x9fb/0xd80 [ 48.904431] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 48.909439] ? add_to_page_cache_lru+0x510/0x510 [ 48.914198] ? check_noncircular+0x20/0x20 [ 48.918423] ? check_noncircular+0x20/0x20 [ 48.922647] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 48.928513] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 48.933289] alloc_pages_current+0xb6/0x1e0 [ 48.937601] __page_cache_alloc+0x334/0x500 [ 48.941907] ? rcu_read_lock_held+0xa9/0xc0 [ 48.946216] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 48.953600] filemap_fault+0xefc/0x1c20 [ 48.957573] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 48.962773] ? __lock_page_or_retry+0x4f0/0x4f0 [ 48.967438] ? filemap_map_pages+0x942/0x15d0 [ 48.971944] ? find_get_entries_tag+0xeb0/0xeb0 [ 48.976607] ? __unlock_page_memcg+0x72/0x100 [ 48.981091] ? check_noncircular+0x20/0x20 [ 48.985318] ? print_irqtrace_events+0x270/0x270 [ 48.990060] ? print_irqtrace_events+0x270/0x270 [ 48.994800] ? print_irqtrace_events+0x270/0x270 [ 48.999544] ? find_held_lock+0x35/0x1d0 [ 49.003599] ? lock_acquire+0x1d5/0x580 [ 49.007551] ? lock_acquire+0x1d5/0x580 [ 49.011518] ? ext4_filemap_fault+0x7a/0xad [ 49.015842] ? __lock_acquire+0x664/0x3e00 [ 49.020171] ? lock_release+0xa40/0xa40 [ 49.024128] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 49.030003] ? rcu_note_context_switch+0x710/0x710 [ 49.034931] ? __might_sleep+0x95/0x190 [ 49.038901] ? down_read+0x96/0x150 [ 49.042512] ? ext4_filemap_fault+0x7a/0xad [ 49.046817] ? __down_interruptible+0x6b0/0x6b0 [ 49.051482] ext4_filemap_fault+0x82/0xad [ 49.055613] __do_fault+0xeb/0x30f [ 49.059150] ? pte_offset_kernel+0xc7/0xc7 [ 49.063372] ? do_raw_spin_trylock+0x190/0x190 [ 49.067941] ? __lock_acquire+0x664/0x3e00 [ 49.072172] ? check_noncircular+0x20/0x20 [ 49.076403] __handle_mm_fault+0x1d8f/0x3ce0 [ 49.080812] ? __pmd_alloc+0x4e0/0x4e0 [ 49.084692] ? find_held_lock+0x35/0x1d0 [ 49.088750] ? handle_mm_fault+0x248/0x8d0 [ 49.092980] ? lock_downgrade+0x980/0x980 [ 49.097160] handle_mm_fault+0x334/0x8d0 [ 49.101210] ? down_read_trylock+0xdb/0x170 [ 49.105514] ? __do_page_fault+0x32d/0xc90 [ 49.109735] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 49.114297] ? vmacache_find+0x5f/0x280 [ 49.118261] ? find_vma+0x30/0x150 [ 49.121800] __do_page_fault+0x5c9/0xc90 [ 49.125850] ? vfs_copy_file_range+0x940/0x940 [ 49.130436] ? mm_fault_error+0x2c0/0x2c0 [ 49.134578] ? avc_policy_seqno+0x9/0x20 [ 49.138634] do_page_fault+0xee/0x720 [ 49.142421] ? __do_page_fault+0xc90/0xc90 [ 49.146655] ? vfs_read+0x165/0x350 [ 49.150274] ? SyS_read+0x184/0x220 [ 49.153878] ? generic_file_llseek_size+0xe1/0x2e0 [ 49.158791] ? retint_user+0x18/0x18 [ 49.162491] ? page_fault+0x36/0x60 [ 49.166104] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 49.170947] ? page_fault+0x36/0x60 [ 49.174559] page_fault+0x4c/0x60 [ 49.177985] RIP: 0033:0x7f74ea39deae [ 49.181678] RSP: 002b:00007ffe8a9d3810 EFLAGS: 00010202 [ 49.187030] RAX: 0000000000000000 RBX: 0000000001d3f8c0 RCX: 0000000001d3f8c0 [ 49.194286] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 0000000001bbb300 [ 49.201538] RBP: 00007ffe8a9d3950 R08: 0000000001bbb2f0 R09: 0000000000000000 [ 49.208785] R10: 0000000000000022 R11: 0000000000000202 R12: 0000000000000000 [ 49.216041] R13: 0000000000000004 R14: 0000000000000008 R15: 0000000000000018 [ 49.223424] Mem-Info: [ 49.226736] active_anon:1984 inactive_anon:62 isolated_anon:0 [ 49.226736] active_file:17 inactive_file:15 isolated_file:2 [ 49.226736] unevictable:0 dirty:0 writeback:0 unstable:0 [ 49.226736] slab_reclaimable:7306 slab_unreclaimable:83108 [ 49.226736] mapped:2 shmem:70 pagetables:305 bounce:0 [ 49.226736] free:19660 free_pcp:121 free_cma:0 [ 49.258872] Node 0 active_anon:7936kB inactive_anon:248kB active_file:64kB inactive_file:72kB 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 [ 49.285325] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 49.311483] lowmem_reserve[]: 0 2870 6381 6381 [ 49.316069] Node 0 DMA32 free:42140kB min:30332kB low:37912kB high:45492kB active_anon:32kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2942320kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:108kB local_pcp:108kB free_cma:0kB [ 49.343676] lowmem_reserve[]: 0 0 3510 3510 [ 49.348042] Node 0 Normal free:20592kB min:37084kB low:46352kB high:55620kB active_anon:7904kB inactive_anon:248kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:0kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3072kB pagetables:1220kB bounce:0kB free_pcp:376kB local_pcp:252kB free_cma:0kB [ 49.377395] lowmem_reserve[]: 0 0 0 0 [ 49.381242] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 49.394895] Node 0 DMA32: 7*4kB (UM) 6*8kB (UM) 3*16kB (M) 1*32kB (M) 4*64kB (UM) 4*128kB (M) 5*256kB (UM) 4*512kB (UM) 3*1024kB (UM) 3*2048kB (UM) 7*4096kB (M) = 42140kB [ 49.410395] Node 0 Normal: 278*4kB (UME) 273*8kB (ME) 169*16kB (ME) 100*32kB (M) 48*64kB (M) 25*128kB (UM) 12*256kB (UM) 0*512kB 0*1024kB 1*2048kB (M) 0*4096kB = 20592kB [ 49.425729] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 49.434323] 104 total pagecache pages [ 49.438126] 0 pages in swap cache [ 49.441596] Swap cache stats: add 0, delete 0, find 0/0 [ 49.446972] Free swap = 0kB [ 49.449980] Total swap = 0kB [ 49.453000] 1965979 pages RAM [ 49.456129] 0 pages HighMem/MovableOnly [ 49.460105] 327765 pages reserved [ 49.463556] Unreclaimable slab info: [ 49.467275] Name Used Total [ 49.472811] hashtab_node 118KB 119KB [ 49.478186] ebitmap_node 382KB 385KB [ 49.483553] avtab_node 1012KB 1013KB [ 49.488931] TIPC 1KB 7KB [ 49.494317] SCTPv6 2KB 4KB [ 49.499701] DCCPv6 2KB 7KB [ 49.505488] DCCP 2KB 6KB [ 49.510883] fib6_nodes 0KB 4KB [ 49.516264] ip6_dst_cache 6KB 7KB [ 49.521654] RAWv6 9KB 13KB [ 49.527047] UDPv6 12KB 14KB [ 49.532423] TCPv6 2KB 5KB [ 49.537822] sd_ext_cdb 0KB 3KB [ 49.543188] scsi_sense_cache 116KB 120KB [ 49.548564] virtio_scsi_cmd 16KB 16KB [ 49.553948] sgpool-128 8KB 8KB [ 49.559311] sgpool-64 4KB 6KB [ 49.564686] sgpool-32 338KB 338KB [ 49.570065] sgpool-16 77KB 78KB [ 49.575445] sgpool-8 239KB 240KB [ 49.580812] cfq_io_cq 15KB 19KB [ 49.586201] cfq_queue 24KB 27KB [ 49.591567] mqueue_inode_cache 1KB 7KB [ 49.597046] nfs_commit_data 3KB 7KB [ 49.602410] nfs_write_data 34KB 37KB [ 49.607787] jbd2_inode 1KB 3KB [ 49.613182] ext4_system_zone 0KB 3KB [ 49.618569] bio-1 1KB 3KB [ 49.623941] rpc_buffers 17KB 19KB [ 49.629313] rpc_tasks 2KB 3KB [ 49.635206] UNIX 773KB 773KB [ 49.640596] tcp_bind_bucket 0KB 4KB [ 49.645965] ip_fib_trie 0KB 3KB [ 49.651339] ip_fib_alias 0KB 3KB [ 49.656703] ip_dst_cache 3KB 4KB [ 49.662080] RAW 5KB 7KB [ 49.667447] UDP 29KB 31KB [ 49.672830] TCP 7KB 15KB [ 49.678207] hugetlbfs_inode_cache 1KB 7KB [ 49.683937] eventpoll_pwq 10KB 11KB [ 49.689301] eventpoll_epi 19KB 23KB [ 49.694673] inotify_inode_mark 3KB 7KB [ 49.700141] request_queue 33KB 67KB [ 49.705525] blkdev_ioc 21KB 23KB [ 49.710890] bio-0 482KB 483KB [ 49.716266] biovec-(1<<(21-12)) 437KB 437KB [ 49.721819] biovec-64 338KB 346KB [ 49.727195] biovec-16 57KB 60KB [ 49.732559] bio_integrity_payload 0KB 4KB [ 49.738282] khugepaged_mm_slot 0KB 3KB [ 49.743738] uid_cache 0KB 3KB [ 49.749114] dmaengine-unmap-2 0KB 3KB [ 49.754478] audit_buffer 0KB 3KB [ 49.759851] skbuff_fclone_cache 136KB 138KB [ 49.765417] skbuff_head_cache 1670KB 1672KB [ 49.771588] configfs_dir_cache 0KB 4KB [ 49.777053] file_lock_cache 159KB 162KB [ 49.782426] file_lock_ctx 1KB 3KB [ 49.787814] fsnotify_mark_connector 2KB 3KB [ 49.793701] shmem_inode_cache 1046KB 1050KB [ 49.799077] task_delay_info 318KB 339KB [ 49.804445] sigqueue 364KB 370KB [ 49.809816] kernfs_node_cache 2284KB 2287KB [ 49.815196] mnt_cache 15KB 16KB [ 49.820575] filp 8261KB 8726KB [ 49.825940] names_cache 110687KB 110716KB [ 49.831323] avc_node 37KB 43KB [ 49.836687] selinux_file_security 415KB 492KB [ 49.842407] selinux_inode_security 1952KB 1956KB [ 49.848207] key_jar 3KB 7KB [ 49.853577] nsproxy 0KB 3KB [ 49.858963] vm_area_struct 18692KB 18721KB [ 49.864336] mm_struct 4525KB 4539KB [ 49.869707] fs_cache 425KB 432KB [ 49.875084] files_cache 1594KB 1601KB [ 49.880464] signal_cache 2542KB 2558KB [ 49.885828] sighand_cache 217KB 312KB [ 49.891199] task_struct 10853KB 10859KB [ 49.896563] cred_jar 2355KB 2364KB [ 49.901938] anon_vma_chain 7846KB 7859KB [ 49.908121] anon_vma 124KB 354KB [ 49.913488] pid 221KB 240KB [ 49.918861] Acpi-Operand 106KB 170KB [ 49.924243] Acpi-Namespace 19KB 23KB [ 49.929629] numa_policy 0KB 3KB [ 49.934993] debug_objects_cache 537KB 539KB [ 49.940547] trace_event_file 145KB 147KB [ 49.945910] ftrace_event_field 257KB 259KB [ 49.951374] pool_workqueue 24KB 28KB [ 49.956739] page->ptl 3095KB 3103KB [ 49.962144] kmalloc-262144 1032KB 1032KB [ 49.967514] kmalloc-131072 650KB 650KB [ 49.972891] kmalloc-65536 264KB 264KB [ 49.978273] kmalloc-32768 825KB 825KB [ 49.983659] kmalloc-16384 181KB 181KB [ 49.989573] kmalloc-8192 519KB 519KB [ 49.994971] kmalloc-4096 6651KB 6689KB [ 50.000350] kmalloc-2048 3221KB 3225KB [ 50.005736] kmalloc-1024 3944KB 3945KB [ 50.011102] kmalloc-512 2773KB 2775KB [ 50.016474] kmalloc-256 1915KB 2426KB [ 50.021858] kmalloc-128 405KB 523KB [ 50.027222] kmalloc-96 2072KB 2072KB [ 50.032598] kmalloc-64 2476KB 2476KB [ 50.037975] kmalloc-32 2392KB 2401KB [ 50.043758] kmalloc-192 916KB 916KB [ 50.049134] kmem_cache 101KB 105KB [ 50.054674] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 50.063284] [ 1815] 0 1815 5366 167 94208 0 -1000 udevd [ 50.071455] [ 3505] 0 3505 14298 218 118784 0 0 rsyslogd [ 50.079884] [ 3551] 0 3551 4725 49 86016 0 0 cron [ 50.087961] [ 3578] 0 3578 3736 45 69632 0 0 mcstransd [ 50.096483] [ 3606] 0 3606 12490 153 139264 0 -1000 sshd [ 50.104549] [ 3630] 0 3630 3694 39 69632 0 0 getty [ 50.112711] [ 3631] 0 3631 3694 41 73728 0 0 getty [ 50.120875] [ 3632] 0 3632 3694 41 73728 0 0 getty [ 50.129058] [ 3633] 0 3633 3694 42 73728 0 0 getty [ 50.137229] [ 3634] 0 3634 3694 41 73728 0 0 getty [ 50.145395] [ 3635] 0 3635 3694 40 77824 0 0 getty [ 50.153560] [ 3636] 0 3636 3649 39 77824 0 0 getty [ 50.161732] [ 3638] 0 3638 5681 455 90112 0 -1000 udevd [ 50.169897] [ 3639] 0 3639 5681 454 90112 0 -1000 udevd [ 50.178086] [ 3656] 0 3656 17821 197 184320 0 0 sshd [ 50.186149] [ 3658] 0 3658 280 1 32768 0 0 syzkaller617356 [ 50.195178] [ 3659] 0 3659 4375 0 32768 0 0 syzkaller617356 [ 50.204217] [ 3660] 0 3660 4375 0 32768 0 0 syzkaller617356 [ 50.213234] [ 3661] 0 3661 4375 0 32768 0 0 syzkaller617356 [ 50.222266] [ 3662] 0 3662 4375 0 32768 0 0 syzkaller617356 [ 50.231314] [ 3663] 0 3663 4375 0 32768 0 0 syzkaller617356 [ 50.240338] [ 3664] 0 3664 4375 0 32768 0 0 syzkaller617356 [ 50.249367] [ 3665] 0 3665 4375 0 32768 0 0 syzkaller617356 [ 50.258407] [ 3666] 0 3666 4375 0 32768 0 0 syzkaller617356 [ 50.267427] Out of memory: Kill process 3505 (rsyslogd) score 0 or sacrifice child [ 50.276608] Killed process 3505 (rsyslogd) total-vm:57192kB, anon-rss:872kB, file-rss:0kB, shmem-rss:0kB [ 50.276779] rsyslogd (3509) used greatest stack depth: 10112 bytes left [ 50.298152] udevd invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=-1000 [ 50.309668] udevd cpuset=/ mems_allowed=0 [ 50.313841] CPU: 0 PID: 3638 Comm: udevd Not tainted 4.15.0-rc7+ #191 [ 50.320406] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.329751] Call Trace: [ 50.332331] dump_stack+0x194/0x257 [ 50.335947] ? arch_local_irq_restore+0x53/0x53 [ 50.340611] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 50.345796] dump_header+0x28c/0xe1e [ 50.349507] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 50.354697] ? pagefault_out_of_memory+0x152/0x152 [ 50.359620] ? check_noncircular+0x20/0x20 [ 50.363844] ? print_irqtrace_events+0x270/0x270 [ 50.368596] ? __lock_acquire+0x664/0x3e00 [ 50.372819] ? check_noncircular+0x20/0x20 [ 50.377050] ? print_irqtrace_events+0x270/0x270 [ 50.381800] ? check_noncircular+0x20/0x20 [ 50.386015] ? task_will_free_mem+0x252/0xaa0 [ 50.390519] ? print_irqtrace_events+0x270/0x270 [ 50.395282] ? ___ratelimit+0x30d/0x630 [ 50.399250] ? lock_downgrade+0x980/0x980 [ 50.403395] ? lock_release+0xa40/0xa40 [ 50.407370] ? mark_held_locks+0xaf/0x100 [ 50.411513] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 50.416615] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 50.421627] ? trace_hardirqs_on+0xd/0x10 [ 50.425767] ? ___ratelimit+0x95/0x630 [ 50.429642] ? idr_get_free_cmn+0xfd0/0xfd0 [ 50.433958] ? check_noncircular+0x20/0x20 [ 50.438175] ? find_held_lock+0x138/0x1d0 [ 50.442331] oom_kill_process+0x8b5/0x14a0 [ 50.446568] ? has_ns_capability_noaudit+0x163/0x2a0 [ 50.451667] ? check_noncircular+0x20/0x20 [ 50.455890] ? oom_evaluate_task+0x480/0x480 [ 50.460304] ? security_capable_noaudit+0x8b/0xc0 [ 50.465146] ? find_held_lock+0x35/0x1d0 [ 50.469205] ? check_noncircular+0x20/0x20 [ 50.473433] ? oom_unkillable_task+0x394/0x4c0 [ 50.477999] ? lock_downgrade+0x980/0x980 [ 50.482146] ? lock_release+0xa40/0xa40 [ 50.486111] ? do_try_to_free_pages+0xc53/0x1020 [ 50.490854] ? find_lock_task_mm+0x460/0x460 [ 50.495253] ? find_held_lock+0x35/0x1d0 [ 50.499322] ? out_of_memory+0xb3a/0x1220 [ 50.503461] ? lock_downgrade+0x980/0x980 [ 50.507609] ? lock_release+0xa40/0xa40 [ 50.511573] ? lock_acquire+0x1d5/0x580 [ 50.515538] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 50.520474] ? oom_evaluate_task+0x284/0x480 [ 50.524871] out_of_memory+0x86d/0x1220 [ 50.528830] ? oom_killer_disable+0x310/0x310 [ 50.533323] ? mutex_trylock+0x23a/0x2d0 [ 50.537379] ? __lock_is_held+0xb6/0x140 [ 50.541432] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 50.546880] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 50.551725] ? trace_hardirqs_on+0xd/0x10 [ 50.555872] ? warn_alloc+0x2b0/0x2b0 [ 50.559658] ? lock_downgrade+0x980/0x980 [ 50.563799] ? __lock_is_held+0xb6/0x140 [ 50.567852] ? find_get_entry+0x53c/0x9e0 [ 50.571995] ? __lock_acquire+0x664/0x3e00 [ 50.576241] ? __lock_is_held+0xb6/0x140 [ 50.580331] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 50.586223] ? __might_sleep+0x95/0x190 [ 50.590199] __alloc_pages_nodemask+0x9fb/0xd80 [ 50.594860] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 50.599870] ? add_to_page_cache_lru+0x510/0x510 [ 50.604627] ? check_noncircular+0x20/0x20 [ 50.608849] ? check_noncircular+0x20/0x20 [ 50.613069] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 50.618949] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 50.623727] alloc_pages_current+0xb6/0x1e0 [ 50.628054] __page_cache_alloc+0x334/0x500 [ 50.632369] ? rcu_read_lock_held+0xa9/0xc0 [ 50.636690] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 50.644057] filemap_fault+0xefc/0x1c20 [ 50.648028] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 50.653229] ? __lock_page_or_retry+0x4f0/0x4f0 [ 50.657891] ? filemap_map_pages+0x942/0x15d0 [ 50.662393] ? find_get_entries_tag+0xeb0/0xeb0 [ 50.667062] ? __unlock_page_memcg+0x72/0x100 [ 50.671554] ? check_noncircular+0x20/0x20 [ 50.675777] ? print_irqtrace_events+0x270/0x270 [ 50.680513] ? print_irqtrace_events+0x270/0x270 [ 50.685262] ? print_irqtrace_events+0x270/0x270 [ 50.690003] ? find_held_lock+0x35/0x1d0 [ 50.694079] ? lock_acquire+0x1d5/0x580 [ 50.698041] ? lock_acquire+0x1d5/0x580 [ 50.701999] ? ext4_filemap_fault+0x7a/0xad [ 50.706314] ? __lock_acquire+0x664/0x3e00 [ 50.710550] ? lock_release+0xa40/0xa40 [ 50.714514] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 50.720400] ? rcu_note_context_switch+0x710/0x710 [ 50.725329] ? __might_sleep+0x95/0x190 [ 50.729300] ? down_read+0x96/0x150 [ 50.732911] ? ext4_filemap_fault+0x7a/0xad [ 50.737217] ? __down_interruptible+0x6b0/0x6b0 [ 50.741880] ext4_filemap_fault+0x82/0xad [ 50.746009] __do_fault+0xeb/0x30f [ 50.749547] ? pte_offset_kernel+0xc7/0xc7 [ 50.753772] ? do_raw_spin_trylock+0x190/0x190 [ 50.758339] ? __lock_acquire+0x664/0x3e00 [ 50.762570] ? check_noncircular+0x20/0x20 [ 50.766807] __handle_mm_fault+0x1d8f/0x3ce0 [ 50.771214] ? __pmd_alloc+0x4e0/0x4e0 [ 50.775105] ? find_held_lock+0x35/0x1d0 [ 50.779170] ? handle_mm_fault+0x248/0x8d0 [ 50.783400] ? lock_downgrade+0x980/0x980 [ 50.787588] handle_mm_fault+0x334/0x8d0 [ 50.791639] ? down_read_trylock+0xdb/0x170 [ 50.795944] ? __do_page_fault+0x32d/0xc90 [ 50.800164] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 50.804728] ? vmacache_find+0x5f/0x280 [ 50.808694] ? find_vma+0x30/0x150 [ 50.812229] __do_page_fault+0x5c9/0xc90 [ 50.816281] ? vfs_copy_file_range+0x940/0x940 [ 50.820874] ? mm_fault_error+0x2c0/0x2c0 [ 50.825021] ? avc_policy_seqno+0x9/0x20 [ 50.829092] do_page_fault+0xee/0x720 [ 50.832880] ? __do_page_fault+0xc90/0xc90 [ 50.837109] ? vfs_read+0x165/0x350 [ 50.840741] ? SyS_read+0x184/0x220 [ 50.844355] ? generic_file_llseek_size+0xe1/0x2e0 [ 50.849275] ? retint_user+0x18/0x18 [ 50.852974] ? page_fault+0x36/0x60 [ 50.856585] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 50.861423] ? page_fault+0x36/0x60 [ 50.865045] page_fault+0x4c/0x60 [ 50.868489] RIP: 0033:0x7f74ea39deae [ 50.872185] RSP: 002b:00007ffe8a9d3810 EFLAGS: 00010202 [ 50.877539] RAX: 0000000000000000 RBX: 0000000001d3f8c0 RCX: 0000000001d3f8c0 [ 50.884791] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 0000000001bbb300 [ 50.892041] RBP: 00007ffe8a9d3950 R08: 0000000001bbb2f0 R09: 0000000000000000 [ 50.899299] R10: 0000000000000022 R11: 0000000000000202 R12: 0000000000000000 [ 50.906561] R13: 0000000000000004 R14: 0000000000000008 R15: 0000000000000018 [ 50.913904] Mem-Info: [ 50.916996] active_anon:1754 inactive_anon:62 isolated_anon:0 [ 50.916996] active_file:17 inactive_file:17 isolated_file:0 [ 50.916996] unevictable:0 dirty:0 writeback:0 unstable:0 [ 50.916996] slab_reclaimable:7307 slab_unreclaimable:83108 [ 50.916996] mapped:2 shmem:70 pagetables:281 bounce:0 [ 50.916996] free:20070 free_pcp:17 free_cma:0 [ 50.949593] Node 0 active_anon:7016kB inactive_anon:248kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 50.976099] 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 [ 51.002251] lowmem_reserve[]: 0 2870 6381 6381 [ 51.006864] Node 0 DMA32 free:42248kB min:30332kB low:37912kB high:45492kB active_anon:32kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2942320kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 51.034131] lowmem_reserve[]: 0 0 3510 3510 [ 51.038675] Node 0 Normal free:22124kB min:37084kB low:46352kB high:55620kB active_anon:6984kB inactive_anon:248kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:0kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:2944kB pagetables:1124kB bounce:0kB free_pcp:68kB local_pcp:64kB free_cma:0kB [ 51.067940] lowmem_reserve[]: 0 0 0 0 [ 51.071761] 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 [ 51.085352] Node 0 DMA32: 6*4kB (M) 6*8kB (UM) 4*16kB (UM) 2*32kB (UM) 3*64kB (M) 5*128kB (UM) 5*256kB (UM) 4*512kB (UM) 3*1024kB (UM) 3*2048kB (UM) 7*4096kB (M) = 42248kB [ 51.100918] Node 0 Normal: 353*4kB (UME) 243*8kB (UME) 155*16kB (UME) 107*32kB (UM) 49*64kB (UM) 34*128kB (UM) 13*256kB (UM) 0*512kB 0*1024kB 1*2048kB (E) 0*4096kB = 22124kB [ 51.116604] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 51.125198] 104 total pagecache pages [ 51.129028] 0 pages in swap cache [ 51.132495] Swap cache stats: add 0, delete 0, find 0/0 [ 51.137861] Free swap = 0kB [ 51.140868] Total swap = 0kB [ 51.143875] 1965979 pages RAM [ 51.146966] 0 pages HighMem/MovableOnly [ 51.150928] 327765 pages reserved [ 51.154383] Unreclaimable slab info: [ 51.158112] Name Used Total [ 51.163668] hashtab_node 118KB 119KB [ 51.169105] ebitmap_node 382KB 385KB [ 51.174520] avtab_node 1012KB 1013KB [ 51.179950] TIPC 1KB 7KB [ 51.185348] SCTPv6 2KB 4KB [ 51.190737] DCCPv6 2KB 7KB [ 51.196120] DCCP 2KB 6KB [ 51.202066] fib6_nodes 0KB 4KB [ 51.207455] ip6_dst_cache 5KB 7KB [ 51.212821] RAWv6 9KB 13KB [ 51.218196] UDPv6 12KB 14KB [ 51.223579] TCPv6 2KB 5KB [ 51.228956] sd_ext_cdb 0KB 3KB [ 51.234340] scsi_sense_cache 118KB 120KB [ 51.239717] virtio_scsi_cmd 16KB 16KB [ 51.245092] sgpool-128 8KB 8KB [ 51.250468] sgpool-64 4KB 6KB [ 51.255838] sgpool-32 338KB 338KB [ 51.261208] sgpool-16 77KB 78KB [ 51.266586] sgpool-8 240KB 240KB [ 51.271953] cfq_io_cq 15KB 19KB [ 51.277323] cfq_queue 24KB 27KB [ 51.282695] mqueue_inode_cache 1KB 7KB [ 51.288155] nfs_commit_data 3KB 7KB [ 51.293538] nfs_write_data 34KB 37KB [ 51.298903] jbd2_inode 1KB 3KB [ 51.304273] ext4_system_zone 0KB 3KB [ 51.309661] bio-1 1KB 3KB [ 51.315044] rpc_buffers 17KB 19KB [ 51.320421] rpc_tasks 2KB 3KB [ 51.325794] UNIX 773KB 773KB [ 51.331167] tcp_bind_bucket 0KB 4KB [ 51.337062] ip_fib_trie 0KB 3KB [ 51.342445] ip_fib_alias 0KB 3KB [ 51.347809] ip_dst_cache 3KB 4KB [ 51.353180] RAW 5KB 7KB [ 51.358560] UDP 29KB 31KB [ 51.363924] TCP 7KB 15KB [ 51.369295] hugetlbfs_inode_cache 1KB 7KB [ 51.375033] eventpoll_pwq 10KB 11KB [ 51.380412] eventpoll_epi 19KB 23KB [ 51.385781] inotify_inode_mark 3KB 7KB [ 51.391253] request_queue 33KB 67KB [ 51.396632] blkdev_ioc 21KB 23KB [ 51.402038] bio-0 483KB 483KB [ 51.407418] biovec-(1<<(21-12)) 437KB 437KB [ 51.412960] biovec-64 338KB 346KB [ 51.418331] biovec-16 57KB 60KB [ 51.423707] bio_integrity_payload 0KB 4KB [ 51.429429] khugepaged_mm_slot 0KB 3KB [ 51.434883] uid_cache 0KB 3KB [ 51.440250] dmaengine-unmap-2 0KB 3KB [ 51.445628] audit_buffer 0KB 3KB [ 51.450990] skbuff_fclone_cache 136KB 138KB [ 51.456546] skbuff_head_cache 1670KB 1672KB [ 51.461913] configfs_dir_cache 0KB 4KB [ 51.467961] file_lock_cache 159KB 162KB [ 51.473337] file_lock_ctx 1KB 3KB [ 51.478705] fsnotify_mark_connector 2KB 3KB [ 51.484604] shmem_inode_cache 1046KB 1050KB [ 51.489970] task_delay_info 318KB 339KB [ 51.495341] taskstats 3KB 3KB [ 51.500704] sigqueue 367KB 370KB [ 51.506073] kernfs_node_cache 2284KB 2287KB [ 51.511454] mnt_cache 15KB 16KB [ 51.516820] filp 8261KB 8722KB [ 51.522193] names_cache 110687KB 110716KB [ 51.527576] avc_node 37KB 43KB [ 51.532938] selinux_file_security 415KB 492KB [ 51.538659] selinux_inode_security 1952KB 1956KB [ 51.544474] key_jar 3KB 7KB [ 51.549838] nsproxy 0KB 3KB [ 51.555207] vm_area_struct 18692KB 18721KB [ 51.560587] mm_struct 4525KB 4539KB [ 51.565963] fs_cache 425KB 432KB [ 51.571338] files_cache 1594KB 1601KB [ 51.576705] signal_cache 2542KB 2558KB [ 51.582074] sighand_cache 217KB 312KB [ 51.587457] task_struct 10853KB 10859KB [ 51.592835] cred_jar 2355KB 2364KB [ 51.598205] anon_vma_chain 7846KB 7859KB [ 51.604114] anon_vma 124KB 354KB [ 51.609503] pid 221KB 240KB [ 51.614866] Acpi-Operand 106KB 170KB [ 51.620238] Acpi-Namespace 19KB 23KB [ 51.625618] numa_policy 0KB 3KB [ 51.630982] debug_objects_cache 537KB 539KB [ 51.636526] trace_event_file 145KB 147KB [ 51.641889] ftrace_event_field 257KB 259KB [ 51.647343] pool_workqueue 24KB 28KB [ 51.652709] page->ptl 3095KB 3103KB [ 51.658103] kmalloc-262144 1032KB 1032KB [ 51.663484] kmalloc-131072 650KB 650KB [ 51.668845] kmalloc-65536 264KB 264KB [ 51.674212] kmalloc-32768 825KB 825KB [ 51.679593] kmalloc-16384 181KB 181KB [ 51.684956] kmalloc-8192 519KB 519KB [ 51.690326] kmalloc-4096 6651KB 6689KB [ 51.695702] kmalloc-2048 3221KB 3225KB [ 51.701074] kmalloc-1024 3945KB 3945KB [ 51.706451] kmalloc-512 2773KB 2775KB [ 51.711818] kmalloc-256 1915KB 2426KB [ 51.717195] kmalloc-128 405KB 523KB [ 51.722576] kmalloc-96 2069KB 2072KB [ 51.727938] kmalloc-64 2475KB 2476KB [ 51.733308] kmalloc-32 2391KB 2401KB [ 51.739207] kmalloc-192 915KB 916KB [ 51.744664] kmem_cache 101KB 105KB [ 51.750037] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 51.758655] [ 1815] 0 1815 5366 167 94208 0 -1000 udevd [ 51.766827] [ 3551] 0 3551 4725 49 86016 0 0 cron [ 51.774881] [ 3578] 0 3578 3736 45 69632 0 0 mcstransd [ 51.783385] [ 3606] 0 3606 12490 153 139264 0 -1000 sshd [ 51.791471] [ 3630] 0 3630 3694 39 69632 0 0 getty [ 51.799638] [ 3631] 0 3631 3694 41 73728 0 0 getty [ 51.807786] [ 3632] 0 3632 3694 41 73728 0 0 getty [ 51.815930] [ 3633] 0 3633 3694 42 73728 0 0 getty [ 51.824091] [ 3634] 0 3634 3694 41 73728 0 0 getty [ 51.832258] [ 3635] 0 3635 3694 40 77824 0 0 getty [ 51.840425] [ 3636] 0 3636 3649 39 77824 0 0 getty [ 51.848604] [ 3638] 0 3638 5681 455 90112 0 -1000 udevd [ 51.856762] [ 3639] 0 3639 5681 454 90112 0 -1000 udevd [ 51.864907] [ 3656] 0 3656 17821 197 184320 0 0 sshd [ 51.872978] [ 3658] 0 3658 280 1 32768 0 0 syzkaller617356 [ 51.881989] [ 3659] 0 3659 4375 0 32768 0 0 syzkaller617356 [ 51.891041] [ 3660] 0 3660 4375 0 32768 0 0 syzkaller617356 [ 51.900080] [ 3661] 0 3661 4375 0 32768 0 0 syzkaller617356 [ 51.909139] [ 3662] 0 3662 4375 0 32768 0 0 syzkaller617356 [ 51.918177] [ 3663] 0 3663 4375 0 32768 0 0 syzkaller617356 [ 51.927217] [ 3664] 0 3664 4375 0 32768 0 0 syzkaller617356 [ 51.936266] [ 3665] 0 3665 4375 0 32768 0 0 syzkaller617356 [ 51.945303] [ 3666] 0 3666 4375 0 32768 0 0 syzkaller617356 [ 51.954334] Out of memory: Kill process 3656 (sshd) score 0 or sacrifice child [ 51.961858] Killed process 3658 (syzkaller617356) total-vm:1120kB, anon-rss:4kB, file-rss:0kB, shmem-rss:0kB [ 51.973844] sshd invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=0 [ 51.985402] sshd cpuset=/ mems_allowed=0 [ 51.989513] CPU: 0 PID: 3656 Comm: sshd Not tainted 4.15.0-rc7+ #191 [ 51.995988] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.005327] Call Trace: [ 52.007906] dump_stack+0x194/0x257 [ 52.011529] ? arch_local_irq_restore+0x53/0x53 [ 52.016200] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 52.021401] dump_header+0x28c/0xe1e [ 52.025126] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 52.030317] ? pagefault_out_of_memory+0x152/0x152 [ 52.035239] ? check_noncircular+0x20/0x20 [ 52.039470] ? print_irqtrace_events+0x270/0x270 [ 52.044215] ? __lock_acquire+0x664/0x3e00 [ 52.048446] ? check_noncircular+0x20/0x20 [ 52.052685] ? print_irqtrace_events+0x270/0x270 [ 52.057446] ? check_noncircular+0x20/0x20 [ 52.061677] ? task_will_free_mem+0x252/0xaa0 [ 52.066173] ? print_irqtrace_events+0x270/0x270 [ 52.070930] ? ___ratelimit+0x30d/0x630 [ 52.074890] ? lock_downgrade+0x980/0x980 [ 52.079037] ? lock_release+0xa40/0xa40 [ 52.083009] ? mark_held_locks+0xaf/0x100 [ 52.087153] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 52.092244] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 52.097244] ? trace_hardirqs_on+0xd/0x10 [ 52.101379] ? ___ratelimit+0x95/0x630 [ 52.105251] ? idr_get_free_cmn+0xfd0/0xfd0 [ 52.109563] ? check_noncircular+0x20/0x20 [ 52.113779] ? find_held_lock+0x138/0x1d0 [ 52.117927] oom_kill_process+0x8b5/0x14a0 [ 52.122165] ? has_ns_capability_noaudit+0x163/0x2a0 [ 52.127258] ? check_noncircular+0x20/0x20 [ 52.131487] ? oom_evaluate_task+0x480/0x480 [ 52.135903] ? security_capable_noaudit+0x8b/0xc0 [ 52.140735] ? find_held_lock+0x35/0x1d0 [ 52.144791] ? check_noncircular+0x20/0x20 [ 52.149022] ? oom_unkillable_task+0x394/0x4c0 [ 52.153600] ? lock_downgrade+0x980/0x980 [ 52.157744] ? lock_release+0xa40/0xa40 [ 52.161711] ? do_try_to_free_pages+0xc53/0x1020 [ 52.166460] ? find_lock_task_mm+0x460/0x460 [ 52.170859] ? find_held_lock+0x35/0x1d0 [ 52.174930] ? out_of_memory+0xb3a/0x1220 [ 52.179071] ? lock_downgrade+0x980/0x980 [ 52.183217] ? lock_release+0xa40/0xa40 [ 52.187179] ? lock_acquire+0x1d5/0x580 [ 52.191140] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 52.196068] ? oom_evaluate_task+0x284/0x480 [ 52.200465] out_of_memory+0x86d/0x1220 [ 52.204445] ? oom_killer_disable+0x310/0x310 [ 52.208930] ? mutex_trylock+0x23a/0x2d0 [ 52.212975] ? __lock_is_held+0xb6/0x140 [ 52.217019] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 52.222483] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 52.227336] ? warn_alloc+0x2b0/0x2b0 [ 52.231122] ? lock_downgrade+0x980/0x980 [ 52.235276] ? radix_tree_lookup_slot+0x99/0xe0 [ 52.239946] ? find_get_entry+0x53c/0x9e0 [ 52.244120] ? __lock_acquire+0x664/0x3e00 [ 52.248352] ? __lock_is_held+0xb6/0x140 [ 52.252427] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 52.258322] ? __might_sleep+0x95/0x190 [ 52.262299] __alloc_pages_nodemask+0x9fb/0xd80 [ 52.266959] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 52.271964] ? add_to_page_cache_lru+0x510/0x510 [ 52.276730] ? check_noncircular+0x20/0x20 [ 52.280956] ? check_noncircular+0x20/0x20 [ 52.285197] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 52.289977] alloc_pages_current+0xb6/0x1e0 [ 52.294303] __page_cache_alloc+0x334/0x500 [ 52.298615] ? rcu_read_lock_held+0xa9/0xc0 [ 52.302925] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 52.310286] filemap_fault+0xefc/0x1c20 [ 52.314245] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 52.319438] ? __lock_page_or_retry+0x4f0/0x4f0 [ 52.324100] ? print_irqtrace_events+0x270/0x270 [ 52.328860] ? filemap_map_pages+0x942/0x15d0 [ 52.333367] ? find_get_entries_tag+0xeb0/0xeb0 [ 52.338031] ? __lock_acquire+0x664/0x3e00 [ 52.342261] ? check_noncircular+0x20/0x20 [ 52.346485] ? print_irqtrace_events+0x270/0x270 [ 52.351230] ? add_wait_queue+0x290/0x290 [ 52.355377] ? print_irqtrace_events+0x270/0x270 [ 52.360123] ? print_irqtrace_events+0x270/0x270 [ 52.364873] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 52.370057] ? free_obj_work+0x690/0x690 [ 52.374117] ? cpumask_local_spread+0x250/0x250 [ 52.378783] ? lock_acquire+0x1d5/0x580 [ 52.382744] ? lock_acquire+0x1d5/0x580 [ 52.386703] ? ext4_filemap_fault+0x7a/0xad [ 52.391012] ? __lock_acquire+0x664/0x3e00 [ 52.395246] ? lock_release+0xa40/0xa40 [ 52.399202] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 52.405075] ? __sigqueue_free.part.16+0x51/0x60 [ 52.409829] ? rcu_note_context_switch+0x710/0x710 [ 52.414758] ? __might_sleep+0x95/0x190 [ 52.418731] ? down_read+0x96/0x150 [ 52.422363] ? ext4_filemap_fault+0x7a/0xad [ 52.426678] ? __down_interruptible+0x6b0/0x6b0 [ 52.431345] ? rcu_pm_notify+0xc0/0xc0 [ 52.435326] ext4_filemap_fault+0x82/0xad [ 52.439471] __do_fault+0xeb/0x30f [ 52.443001] ? find_held_lock+0x35/0x1d0 [ 52.447058] ? pte_offset_kernel+0xc7/0xc7 [ 52.451293] ? __set_current_blocked+0xcf/0x110 [ 52.455960] ? check_noncircular+0x20/0x20 [ 52.460198] __handle_mm_fault+0x1d8f/0x3ce0 [ 52.464614] ? __pmd_alloc+0x4e0/0x4e0 [ 52.468490] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 52.473500] ? find_held_lock+0x35/0x1d0 [ 52.477555] ? handle_mm_fault+0x248/0x8d0 [ 52.481774] ? lock_downgrade+0x980/0x980 [ 52.485957] handle_mm_fault+0x334/0x8d0 [ 52.490004] ? down_read_trylock+0xdb/0x170 [ 52.494325] ? __do_page_fault+0x32d/0xc90 [ 52.498552] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 52.503114] ? vmacache_find+0x5f/0x280 [ 52.507078] ? vmacache_update+0xfe/0x130 [ 52.511225] ? find_vma+0x30/0x150 [ 52.514767] __do_page_fault+0x5c9/0xc90 [ 52.518833] ? mm_fault_error+0x2c0/0x2c0 [ 52.522964] ? exit_to_usermode_loop+0x8c/0x310 [ 52.527634] do_page_fault+0xee/0x720 [ 52.531422] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 52.536943] ? __do_page_fault+0xc90/0xc90 [ 52.541185] ? syscall_return_slowpath+0x2ad/0x550 [ 52.546105] ? prepare_exit_to_usermode+0x340/0x340 [ 52.551112] ? SyS_write+0x184/0x220 [ 52.554820] ? return_from_SYSCALL_64+0x10/0x75 [ 52.559485] ? page_fault+0x36/0x60 [ 52.563102] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 52.567932] ? page_fault+0x36/0x60 [ 52.571544] page_fault+0x4c/0x60 [ 52.574984] RIP: 0033:0x5608a0a84530 [ 52.578681] RSP: 002b:00007fff85506bf8 EFLAGS: 00010246 [ 52.584030] RAX: 0000000000000000 RBX: 00007fff85507220 RCX: 00007f1383ed4dd3 [ 52.591287] RDX: 00007fff85506c00 RSI: 00007fff85506d30 RDI: 0000000000000011 [ 52.598539] RBP: 00005608a0ceb8dc R08: 00007fff855071c0 R09: 0101010101010101 [ 52.605799] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff85507228 [ 52.613054] R13: 0000000000000000 R14: 00007fff85507218 R15: 00007fff8550721c [ 52.620415] Mem-Info: [ 52.623635] active_anon:1754 inactive_anon:62 isolated_anon:0 [ 52.623635] active_file:17 inactive_file:17 isolated_file:0 [ 52.623635] unevictable:0 dirty:0 writeback:0 unstable:0 [ 52.623635] slab_reclaimable:7307 slab_unreclaimable:83107 [ 52.623635] mapped:2 shmem:70 pagetables:281 bounce:0 [ 52.623635] free:20070 free_pcp:35 free_cma:0 [ 52.655695] Node 0 active_anon:7016kB inactive_anon:248kB active_file:68kB inactive_file:68kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 52.682175] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 52.708334] lowmem_reserve[]: 0 2870 6381 6381 [ 52.712968] Node 0 DMA32 free:42248kB min:30332kB low:37912kB high:45492kB active_anon:32kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2942320kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 52.740249] lowmem_reserve[]: 0 0 3510 3510 [ 52.744611] Node 0 Normal free:22124kB min:37084kB low:46352kB high:55620kB active_anon:6984kB inactive_anon:248kB active_file:68kB inactive_file:68kB unevictable:0kB writepending:0kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:2912kB pagetables:1124kB bounce:0kB free_pcp:180kB local_pcp:136kB free_cma:0kB [ 52.774227] lowmem_reserve[]: 0 0 0 0 [ 52.778137] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 52.791903] Node 0 DMA32: 6*4kB (M) 6*8kB (UM) 4*16kB (UM) 2*32kB (UM) 3*64kB (M) 5*128kB (UM) 5*256kB (UM) 4*512kB (UM) 3*1024kB (UM) 3*2048kB (UM) 7*4096kB (M) = 42248kB [ 52.807507] Node 0 Normal: 391*4kB (UME) 257*8kB (UME) 155*16kB (UME) 108*32kB (UM) 49*64kB (UM) 34*128kB (UM) 13*256kB (UM) 0*512kB 0*1024kB 1*2048kB (E) 0*4096kB = 22420kB [ 52.823267] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 52.831847] 104 total pagecache pages [ 52.835663] 0 pages in swap cache [ 52.839129] Swap cache stats: add 0, delete 0, find 0/0 [ 52.844491] Free swap = 0kB [ 52.847499] Total swap = 0kB [ 52.850508] 1965979 pages RAM [ 52.853603] 0 pages HighMem/MovableOnly [ 52.857578] 327765 pages reserved [ 52.861044] Unreclaimable slab info: [ 52.864771] Name Used Total [ 52.870326] hashtab_node 118KB 119KB [ 52.875713] ebitmap_node 382KB 385KB [ 52.881097] avtab_node 1012KB 1013KB [ 52.886468] TIPC 1KB 7KB [ 52.891846] SCTPv6 2KB 4KB [ 52.897235] DCCPv6 2KB 7KB [ 52.902625] DCCP 2KB 6KB [ 52.908816] fib6_nodes 0KB 4KB [ 52.914222] ip6_dst_cache 5KB 7KB [ 52.919604] RAWv6 9KB 13KB [ 52.924980] UDPv6 12KB 14KB [ 52.930374] TCPv6 2KB 5KB [ 52.935768] sd_ext_cdb 0KB 3KB [ 52.941148] scsi_sense_cache 117KB 120KB [ 52.946512] virtio_scsi_cmd 16KB 16KB [ 52.951885] sgpool-128 8KB 8KB [ 52.957266] sgpool-64 4KB 6KB [ 52.962644] sgpool-32 338KB 338KB [ 52.968031] sgpool-16 77KB 78KB [ 52.973410] sgpool-8 239KB 240KB [ 52.978785] cfq_io_cq 15KB 19KB [ 52.984166] cfq_queue 24KB 27KB [ 52.989549] mqueue_inode_cache 1KB 7KB [ 52.995007] nfs_commit_data 3KB 7KB [ 53.000388] nfs_write_data 34KB 37KB [ 53.005759] jbd2_inode 1KB 3KB [ 53.011140] ext4_system_zone 0KB 3KB [ 53.016524] bio-1 1KB 3KB [ 53.021893] rpc_buffers 17KB 19KB [ 53.027290] rpc_tasks 2KB 3KB [ 53.032671] UNIX 773KB 773KB [ 53.038055] tcp_bind_bucket 0KB 4KB [ 53.044235] ip_fib_trie 0KB 3KB [ 53.049616] ip_fib_alias 0KB 3KB [ 53.054978] ip_dst_cache 3KB 4KB [ 53.060334] RAW 5KB 7KB [ 53.065708] UDP 29KB 31KB [ 53.071089] TCP 7KB 15KB [ 53.076466] hugetlbfs_inode_cache 1KB 7KB [ 53.082196] eventpoll_pwq 10KB 11KB [ 53.087556] eventpoll_epi 19KB 23KB [ 53.092927] inotify_inode_mark 3KB 7KB [ 53.098399] request_queue 31KB 45KB [ 53.103778] blkdev_ioc 21KB 23KB [ 53.109156] bio-0 483KB 483KB [ 53.114519] biovec-(1<<(21-12)) 437KB 437KB [ 53.120065] biovec-64 338KB 346KB [ 53.125448] biovec-16 57KB 60KB [ 53.130830] bio_integrity_payload 0KB 4KB [ 53.136553] khugepaged_mm_slot 0KB 3KB [ 53.142041] uid_cache 0KB 3KB [ 53.147405] dmaengine-unmap-2 0KB 3KB [ 53.152775] audit_buffer 0KB 3KB [ 53.158159] skbuff_fclone_cache 136KB 138KB [ 53.163722] skbuff_head_cache 1670KB 1672KB [ 53.169101] configfs_dir_cache 0KB 4KB [ 53.174566] file_lock_cache 159KB 162KB [ 53.180732] file_lock_ctx 1KB 3KB [ 53.186120] fsnotify_mark_connector 2KB 3KB [ 53.192036] shmem_inode_cache 1046KB 1050KB [ 53.197421] task_delay_info 318KB 339KB [ 53.202801] taskstats 3KB 3KB [ 53.208171] sigqueue 367KB 370KB [ 53.213549] kernfs_node_cache 2284KB 2287KB [ 53.218912] mnt_cache 15KB 16KB [ 53.224267] filp 8233KB 8703KB [ 53.229639] names_cache 110687KB 110708KB [ 53.235034] avc_node 37KB 43KB [ 53.240415] selinux_file_security 412KB 492KB [ 53.246142] selinux_inode_security 1952KB 1956KB [ 53.251937] key_jar 3KB 7KB [ 53.257294] nsproxy 0KB 3KB [ 53.262664] vm_area_struct 18680KB 18721KB [ 53.268041] mm_struct 4525KB 4539KB [ 53.273418] fs_cache 425KB 432KB [ 53.278780] files_cache 1594KB 1601KB [ 53.284157] signal_cache 2542KB 2558KB [ 53.289532] sighand_cache 215KB 312KB [ 53.294919] task_struct 10853KB 10853KB [ 53.300296] cred_jar 2355KB 2364KB [ 53.305673] anon_vma_chain 7845KB 7859KB [ 53.311479] anon_vma 122KB 350KB [ 53.316850] pid 221KB 240KB [ 53.322226] Acpi-Operand 106KB 170KB [ 53.327606] Acpi-Namespace 19KB 23KB [ 53.332970] numa_policy 0KB 3KB [ 53.338329] debug_objects_cache 537KB 539KB [ 53.343871] trace_event_file 145KB 147KB [ 53.349246] ftrace_event_field 257KB 259KB [ 53.354711] pool_workqueue 24KB 28KB [ 53.360088] page->ptl 3095KB 3103KB [ 53.365464] kmalloc-262144 1032KB 1032KB [ 53.370838] kmalloc-131072 650KB 650KB [ 53.376220] kmalloc-65536 264KB 264KB [ 53.381598] kmalloc-32768 825KB 825KB [ 53.386965] kmalloc-16384 181KB 181KB [ 53.392328] kmalloc-8192 519KB 519KB [ 53.397702] kmalloc-4096 6651KB 6681KB [ 53.403081] kmalloc-2048 3221KB 3225KB [ 53.408475] kmalloc-1024 3945KB 3945KB [ 53.413839] kmalloc-512 2773KB 2775KB [ 53.419198] kmalloc-256 1901KB 2407KB [ 53.424576] kmalloc-128 405KB 523KB [ 53.429955] kmalloc-96 2068KB 2072KB [ 53.435338] kmalloc-64 2475KB 2476KB [ 53.441237] kmalloc-32 2391KB 2401KB [ 53.446604] kmalloc-192 915KB 916KB [ 53.451972] kmem_cache 101KB 105KB [ 53.457353] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 53.465967] [ 1815] 0 1815 5366 167 94208 0 -1000 udevd [ 53.474142] [ 3551] 0 3551 4725 49 86016 0 0 cron [ 53.482204] [ 3578] 0 3578 3736 45 69632 0 0 mcstransd [ 53.490710] [ 3606] 0 3606 12490 153 139264 0 -1000 sshd [ 53.498791] [ 3630] 0 3630 3694 39 69632 0 0 getty [ 53.506938] [ 3631] 0 3631 3694 41 73728 0 0 getty [ 53.515092] [ 3632] 0 3632 3694 41 73728 0 0 getty [ 53.523253] [ 3633] 0 3633 3694 42 73728 0 0 getty [ 53.531428] [ 3634] 0 3634 3694 41 73728 0 0 getty [ 53.539598] [ 3635] 0 3635 3694 40 77824 0 0 getty [ 53.547768] [ 3636] 0 3636 3649 39 77824 0 0 getty [ 53.555946] [ 3638] 0 3638 5681 455 90112 0 -1000 udevd [ 53.564108] [ 3639] 0 3639 5681 454 90112 0 -1000 udevd [ 53.572295] [ 3656] 0 3656 17821 197 184320 0 0 sshd [ 53.580388] [ 3659] 0 3659 4375 0 32768 0 0 syzkaller617356 [ 53.589428] [ 3660] 0 3660 4375 0 32768 0 0 syzkaller617356 [ 53.598468] [ 3661] 0 3661 4375 0 32768 0 0 syzkaller617356 [ 53.607513] [ 3662] 0 3662 4375 0 32768 0 0 syzkaller617356 [ 53.616552] [ 3663] 0 3663 4375 0 32768 0 0 syzkaller617356 [ 53.625592] [ 3664] 0 3664 4375 0 32768 0 0 syzkaller617356 [ 53.634632] [ 3665] 0 3665 4375 0 32768 0 0 syzkaller617356 [ 53.643671] [ 3666] 0 3666 4375 0 32768 0 0 syzkaller617356 [ 53.652706] Out of memory: Kill process 3656 (sshd) score 0 or sacrifice child Connection to 10.128.15.193 closed by remote host. [ 53.660128] Killed process 3656 (sshd) total-vm:71284kB, anon-rss:784kB, file-rss:0kB, s