[....] Starting enhanced syslogd: rsyslogd[ 13.640992] audit: type=1400 audit(1516123465.833:5): avc: denied { syslog } for pid=3507 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: [ 18.336439] audit: type=1400 audit(1516123470.529:6): avc: denied { map } for pid=3647 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 '10.128.15.242' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program [ 24.704495] audit: type=1400 audit(1516123476.897:7): avc: denied { map } for pid=3662 comm="syzkaller422145" path="/root/syzkaller422145309" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 24.758303] audit: type=1400 audit(1516123476.897:8): avc: denied { map_create } for pid=3670 comm="syzkaller422145" 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 [ 31.213517] syzkaller422145 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 31.226461] syzkaller422145 cpuset=/ mems_allowed=0 [ 31.231690] CPU: 1 PID: 3668 Comm: syzkaller422145 Not tainted 4.15.0-rc8+ #263 [ 31.239121] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.248464] Call Trace: [ 31.251046] dump_stack+0x194/0x257 [ 31.254665] ? arch_local_irq_restore+0x53/0x53 [ 31.259323] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 31.264510] dump_header+0x28c/0xe1e [ 31.268220] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 31.273401] ? pagefault_out_of_memory+0x152/0x152 [ 31.278318] ? check_noncircular+0x20/0x20 [ 31.282542] ? print_irqtrace_events+0x270/0x270 [ 31.287291] ? __lock_acquire+0x664/0x3e00 [ 31.291520] ? check_noncircular+0x20/0x20 [ 31.295762] ? find_held_lock+0x35/0x1d0 [ 31.299820] ? check_noncircular+0x20/0x20 [ 31.304040] ? task_will_free_mem+0x252/0xaa0 [ 31.308530] ? print_irqtrace_events+0x270/0x270 [ 31.313283] ? ___ratelimit+0x30d/0x630 [ 31.317247] ? lock_downgrade+0x980/0x980 [ 31.321384] ? lock_release+0xa40/0xa40 [ 31.325355] ? mark_held_locks+0xaf/0x100 [ 31.329492] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 31.334586] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 31.339592] ? trace_hardirqs_on+0xd/0x10 [ 31.343727] ? ___ratelimit+0x95/0x630 [ 31.347602] ? idr_get_free_cmn+0xfd0/0xfd0 [ 31.351907] ? check_noncircular+0x20/0x20 [ 31.356123] ? find_held_lock+0x138/0x1d0 [ 31.360267] oom_kill_process+0x8b5/0x14a0 [ 31.364496] ? has_ns_capability_noaudit+0x163/0x2a0 [ 31.369586] ? lock_downgrade+0x980/0x980 [ 31.373731] ? oom_evaluate_task+0x480/0x480 [ 31.378144] ? security_capable_noaudit+0x8b/0xc0 [ 31.383081] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 31.388171] ? has_capability+0x30/0x30 [ 31.392130] ? do_raw_spin_trylock+0x190/0x190 [ 31.396700] ? check_noncircular+0x20/0x20 [ 31.400929] ? has_capability_noaudit+0x24/0x30 [ 31.405588] ? oom_badness+0xd1/0x980 [ 31.409377] ? lock_release+0xa40/0xa40 [ 31.413337] ? do_try_to_free_pages+0xc53/0x1020 [ 31.418085] ? find_lock_task_mm+0x460/0x460 [ 31.422497] ? find_held_lock+0x35/0x1d0 [ 31.426557] ? out_of_memory+0xb3a/0x1220 [ 31.430695] ? lock_downgrade+0x980/0x980 [ 31.434835] ? lock_release+0xa40/0xa40 [ 31.438791] ? lock_acquire+0x1d5/0x580 [ 31.442752] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 31.447685] ? oom_evaluate_task+0x284/0x480 [ 31.452086] out_of_memory+0x86d/0x1220 [ 31.456059] ? trace_hardirqs_on+0xd/0x10 [ 31.460208] ? oom_killer_disable+0x310/0x310 [ 31.464685] ? mutex_trylock+0x23a/0x2d0 [ 31.468737] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 31.474169] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 31.480059] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 31.484934] ? warn_alloc+0x2b0/0x2b0 [ 31.488725] ? lock_release+0xa40/0xa40 [ 31.492690] ? print_irqtrace_events+0x270/0x270 [ 31.497451] ? mutex_spin_on_owner+0x446/0xb50 [ 31.502037] ? __lock_acquire+0x664/0x3e00 [ 31.506265] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 31.512134] ? lock_release+0xa40/0xa40 [ 31.516157] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 31.522043] ? __might_sleep+0x95/0x190 [ 31.526915] __alloc_pages_nodemask+0x9fb/0xd80 [ 31.531580] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 31.536596] ? pcpu_chunk_refresh_hint+0x425/0x570 [ 31.541518] ? print_irqtrace_events+0x270/0x270 [ 31.546274] ? __lock_is_held+0xb6/0x140 [ 31.550334] ? find_next_bit+0x27/0x30 [ 31.554217] pcpu_populate_chunk+0x1b3/0x880 [ 31.558630] pcpu_alloc+0x978/0x10e0 [ 31.562350] ? pcpu_free_area+0xa00/0xa00 [ 31.566487] ? vmap_page_range_noflush+0x523/0x720 [ 31.571442] ? map_vm_area+0x9e/0xd0 [ 31.575146] ? __vmalloc_node_range+0x37a/0x650 [ 31.579816] ? array_map_alloc+0x351/0xa00 [ 31.584034] ? __vmalloc_node_flags_caller+0x50/0x60 [ 31.589131] __alloc_percpu_gfp+0x27/0x30 [ 31.593275] array_map_alloc+0x778/0xa00 [ 31.597336] SyS_bpf+0x7f8/0x4400 [ 31.600769] ? check_noncircular+0x20/0x20 [ 31.605000] ? bpf_prog_get+0x20/0x20 [ 31.608793] ? perf_event_fork+0x30/0x30 [ 31.612853] ? __lock_is_held+0xb6/0x140 [ 31.616905] ? check_noncircular+0x20/0x20 [ 31.621134] ? __handle_mm_fault+0x80e/0x3ce0 [ 31.625622] ? check_noncircular+0x20/0x20 [ 31.629838] ? __pmd_alloc+0x4e0/0x4e0 [ 31.633711] ? vma_link+0xe9/0x170 [ 31.637245] ? find_held_lock+0x35/0x1d0 [ 31.641311] ? handle_mm_fault+0x248/0x8d0 [ 31.645533] ? find_held_lock+0x35/0x1d0 [ 31.649595] ? __do_page_fault+0x5f7/0xc90 [ 31.653817] ? lock_downgrade+0x980/0x980 [ 31.657967] ? handle_mm_fault+0x410/0x8d0 [ 31.662187] ? down_read_trylock+0xdb/0x170 [ 31.666494] ? __do_page_fault+0x32d/0xc90 [ 31.670720] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 31.675290] ? vmacache_find+0x5f/0x280 [ 31.679249] ? vmacache_update+0xfe/0x130 [ 31.683397] ? up_read+0x1a/0x40 [ 31.686751] ? __do_page_fault+0x3d6/0xc90 [ 31.690988] ? mm_fault_error+0x2c0/0x2c0 [ 31.695148] ? do_page_fault+0xee/0x720 [ 31.699110] ? __do_page_fault+0xc90/0xc90 [ 31.703345] ? SyS_mmap_pgoff+0x243/0x5f0 [ 31.707498] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 31.712252] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 31.716988] RIP: 0033:0x440139 [ 31.720163] RSP: 002b:00007ffddceb8b48 EFLAGS: 00000217 ORIG_RAX: 0000000000000141 [ 31.727858] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 0000000000440139 [ 31.735113] RDX: 000000000000002c RSI: 0000000020c47fec RDI: 0000000000000000 [ 31.742365] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 31.749642] R10: 00000000ffffffff R11: 0000000000000217 R12: 00000000004016a0 [ 31.756897] R13: 0000000000401730 R14: 0000000000000000 R15: 0000000000000000 [ 31.764261] Mem-Info: [ 31.767763] active_anon:7919 inactive_anon:63 isolated_anon:0 [ 31.767763] active_file:14 inactive_file:14 isolated_file:0 [ 31.767763] unevictable:0 dirty:0 writeback:0 unstable:0 [ 31.767763] slab_reclaimable:7248 slab_unreclaimable:83089 [ 31.767763] mapped:2 shmem:70 pagetables:337 bounce:0 [ 31.767763] free:24163 free_pcp:6 free_cma:0 [ 31.799765] Node 0 active_anon:31676kB inactive_anon:252kB active_file:56kB inactive_file:56kB 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 [ 31.826696] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 31.852858] lowmem_reserve[]: 0 2870 6381 6381 [ 31.857481] Node 0 DMA32 free:43744kB min:30332kB low:37912kB high:45492kB active_anon:28kB inactive_anon:4kB active_file:4kB inactive_file:4kB unevictable:0kB writepending:0kB present:3129332kB managed:2942340kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 31.884761] lowmem_reserve[]: 0 0 3510 3510 [ 31.889122] Node 0 Normal free:37000kB min:37084kB low:46352kB high:55620kB active_anon:31648kB inactive_anon:248kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3136kB pagetables:1348kB bounce:0kB free_pcp:24kB local_pcp:12kB free_cma:0kB [ 31.918607] lowmem_reserve[]: 0 0 0 0 [ 31.922473] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 31.936196] Node 0 DMA32: 6*4kB (UM) 5*8kB (UM) 6*16kB (UM) 2*32kB (UM) 4*64kB (UM) 4*128kB (M) 5*256kB (UM) 3*512kB (M) 3*1024kB (UM) 2*2048kB (M) 8*4096kB (M) = 43744kB [ 31.951684] Node 0 Normal: 632*4kB (UM) 454*8kB (UM) 271*16kB (UM) 150*32kB (UM) 64*64kB (UM) 16*128kB (UM) 33*256kB (M) 14*512kB (UM) 0*1024kB 0*2048kB 0*4096kB = 37056kB [ 31.967242] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 31.975829] 98 total pagecache pages [ 31.979560] 0 pages in swap cache [ 31.983037] Swap cache stats: add 0, delete 0, find 0/0 [ 31.988411] Free swap = 0kB [ 31.991439] Total swap = 0kB [ 31.994466] 1965979 pages RAM [ 31.997576] 0 pages HighMem/MovableOnly [ 32.001555] 327760 pages reserved [ 32.005105] Unreclaimable slab info: [ 32.008929] Name Used Total [ 32.014516] hashtab_node 118KB 119KB [ 32.019890] ebitmap_node 383KB 385KB [ 32.025268] avtab_node 1012KB 1013KB [ 32.030669] TIPC 1KB 7KB [ 32.036053] SCTPv6 2KB 4KB [ 32.041434] DCCPv6 2KB 7KB [ 32.046822] DCCP 2KB 6KB [ 32.053103] fib6_nodes 0KB 4KB [ 32.058486] ip6_dst_cache 6KB 7KB [ 32.063865] RAWv6 9KB 19KB [ 32.069243] UDPv6 12KB 14KB [ 32.074622] TCPv6 2KB 5KB [ 32.080036] sd_ext_cdb 0KB 3KB [ 32.085414] scsi_sense_cache 83KB 148KB [ 32.090794] virtio_scsi_cmd 16KB 16KB [ 32.096191] sgpool-128 8KB 8KB [ 32.101571] sgpool-64 4KB 6KB [ 32.106964] sgpool-32 61KB 63KB [ 32.112338] sgpool-16 18KB 22KB [ 32.117716] sgpool-8 172KB 172KB [ 32.123096] cfq_io_cq 15KB 19KB [ 32.128471] cfq_queue 24KB 27KB [ 32.133853] mqueue_inode_cache 1KB 7KB [ 32.139318] nfs_commit_data 3KB 7KB [ 32.144692] nfs_write_data 34KB 37KB [ 32.150071] jbd2_inode 1KB 3KB [ 32.155450] ext4_system_zone 0KB 3KB [ 32.160894] bio-1 1KB 3KB [ 32.166283] rpc_buffers 17KB 19KB [ 32.171658] rpc_tasks 2KB 3KB [ 32.177040] UNIX 777KB 780KB [ 32.182423] tcp_bind_bucket 0KB 4KB [ 32.188602] ip_fib_trie 0KB 3KB [ 32.193984] ip_fib_alias 0KB 3KB [ 32.199363] ip_dst_cache 4KB 7KB [ 32.204737] RAW 5KB 7KB [ 32.210113] UDP 29KB 39KB [ 32.215492] TCP 7KB 15KB [ 32.220891] hugetlbfs_inode_cache 1KB 7KB [ 32.226916] eventpoll_pwq 9KB 11KB [ 32.232300] eventpoll_epi 17KB 23KB [ 32.237678] inotify_inode_mark 3KB 11KB [ 32.243143] request_queue 53KB 135KB [ 32.248520] blkdev_ioc 20KB 23KB [ 32.253896] bio-0 281KB 281KB [ 32.259270] biovec-(1<<(21-12)) 470KB 470KB [ 32.264823] biovec-64 94KB 102KB [ 32.270198] biovec-16 10KB 15KB [ 32.275576] bio_integrity_payload 0KB 4KB [ 32.281301] khugepaged_mm_slot 0KB 3KB [ 32.286770] uid_cache 0KB 3KB [ 32.292147] dmaengine-unmap-2 0KB 3KB [ 32.297524] audit_buffer 0KB 3KB [ 32.302900] skbuff_fclone_cache 138KB 142KB [ 32.308459] skbuff_head_cache 1792KB 1792KB [ 32.313837] configfs_dir_cache 0KB 4KB [ 32.320105] file_lock_cache 160KB 166KB [ 32.325488] file_lock_ctx 1KB 3KB [ 32.330866] fsnotify_mark_connector 2KB 3KB [ 32.336765] shmem_inode_cache 1046KB 1046KB [ 32.342140] task_delay_info 324KB 336KB [ 32.347524] sigqueue 368KB 370KB [ 32.352902] kernfs_node_cache 2285KB 2287KB [ 32.358278] mnt_cache 15KB 16KB [ 32.363656] filp 8419KB 8887KB [ 32.369031] names_cache 110814KB 110844KB [ 32.374412] avc_node 38KB 39KB [ 32.379789] selinux_file_security 429KB 488KB [ 32.385517] selinux_inode_security 1946KB 1948KB [ 32.391333] key_jar 3KB 7KB [ 32.396715] nsproxy 0KB 3KB [ 32.402095] vm_area_struct 18817KB 18817KB [ 32.407561] mm_struct 4562KB 4570KB [ 32.412939] fs_cache 430KB 432KB [ 32.418316] files_cache 1607KB 1612KB [ 32.423693] signal_cache 2563KB 2565KB [ 32.429073] sighand_cache 247KB 353KB [ 32.434450] task_struct 10945KB 10945KB [ 32.439844] cred_jar 2374KB 2376KB [ 32.445228] anon_vma_chain 7898KB 7898KB [ 32.451423] anon_vma 193KB 377KB [ 32.456809] pid 232KB 248KB [ 32.462185] Acpi-Operand 106KB 170KB [ 32.467561] Acpi-Parse 0KB 3KB [ 32.472935] Acpi-State 0KB 7KB [ 32.478314] Acpi-Namespace 19KB 23KB [ 32.483695] numa_policy 0KB 3KB [ 32.489071] debug_objects_cache 531KB 531KB [ 32.494619] trace_event_file 144KB 147KB [ 32.500004] ftrace_event_field 254KB 255KB [ 32.505483] pool_workqueue 24KB 28KB [ 32.510862] page->ptl 3140KB 3142KB [ 32.516261] kmalloc-262144 1032KB 1032KB [ 32.521639] kmalloc-131072 650KB 650KB [ 32.527037] kmalloc-65536 264KB 264KB [ 32.532413] kmalloc-32768 825KB 825KB [ 32.537786] kmalloc-16384 181KB 181KB [ 32.543162] kmalloc-8192 470KB 470KB [ 32.548538] kmalloc-4096 6638KB 6676KB [ 32.553918] kmalloc-2048 3244KB 3244KB [ 32.559298] kmalloc-1024 3654KB 3654KB [ 32.564678] kmalloc-512 2786KB 2786KB [ 32.570064] kmalloc-256 1961KB 2430KB [ 32.575441] kmalloc-128 413KB 531KB [ 32.580814] kmalloc-96 2052KB 2052KB [ 32.586960] kmalloc-64 2456KB 2456KB [ 32.592348] kmalloc-32 2405KB 2405KB [ 32.597809] kmalloc-192 908KB 908KB [ 32.603187] kmem_cache 101KB 105KB [ 32.608558] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 32.617255] [ 1813] 0 1813 5411 194 86016 0 -1000 udevd [ 32.625519] [ 3370] 0 3370 2493 573 57344 0 0 dhclient [ 32.633956] [ 3507] 0 3507 14298 174 114688 0 0 rsyslogd [ 32.642388] [ 3562] 0 3562 4725 50 86016 0 0 cron [ 32.650469] [ 3581] 0 3581 3736 44 69632 0 0 mcstransd [ 32.658988] [ 3591] 0 3591 12927 1228 135168 0 0 restorecond [ 32.667678] [ 3609] 0 3609 12490 152 131072 0 -1000 sshd [ 32.675755] [ 3633] 0 3633 3694 41 77824 0 0 getty [ 32.683923] [ 3634] 0 3634 3694 41 77824 0 0 getty [ 32.692096] [ 3635] 0 3635 3694 41 77824 0 0 getty [ 32.700272] [ 3636] 0 3636 3694 40 73728 0 0 getty [ 32.708437] [ 3637] 0 3637 3694 42 73728 0 0 getty [ 32.716613] [ 3638] 0 3638 3694 39 73728 0 0 getty [ 32.724806] [ 3639] 0 3639 3649 40 73728 0 0 getty [ 32.732973] [ 3642] 0 3642 5674 454 86016 0 -1000 udevd [ 32.741153] [ 3643] 0 3643 5674 454 86016 0 -1000 udevd [ 32.749325] [ 3660] 0 3660 17821 198 180224 0 0 sshd [ 32.757407] [ 3662] 0 3662 280 1 32768 0 0 syzkaller422145 [ 32.766453] [ 3663] 0 3663 4375 523 36864 0 0 syzkaller422145 [ 32.775494] [ 3664] 0 3664 4375 523 36864 0 0 syzkaller422145 [ 32.784533] [ 3665] 0 3665 4375 523 36864 0 0 syzkaller422145 [ 32.793571] [ 3666] 0 3666 4375 523 36864 0 0 syzkaller422145 [ 32.802605] [ 3667] 0 3667 4375 523 36864 0 0 syzkaller422145 [ 32.811638] [ 3668] 0 3668 4375 523 36864 0 0 syzkaller422145 [ 32.820762] [ 3669] 0 3669 4375 523 36864 0 0 syzkaller422145 [ 32.829834] [ 3670] 0 3670 4375 523 36864 0 0 syzkaller422145 [ 32.838910] Out of memory: Kill process 3591 (restorecond) score 0 or sacrifice child [ 32.848245] Killed process 3591 (restorecond) total-vm:51708kB, anon-rss:4924kB, file-rss:0kB, shmem-rss:0kB [ 32.985871] syzkaller422145 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 32.998273] syzkaller422145 cpuset=/ mems_allowed=0 [ 33.003313] CPU: 0 PID: 3664 Comm: syzkaller422145 Not tainted 4.15.0-rc8+ #263 [ 33.010728] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.020048] Call Trace: [ 33.022618] dump_stack+0x194/0x257 [ 33.026216] ? arch_local_irq_restore+0x53/0x53 [ 33.030858] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 33.036035] dump_header+0x28c/0xe1e [ 33.039725] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 33.044914] ? pagefault_out_of_memory+0x152/0x152 [ 33.049811] ? check_noncircular+0x20/0x20 [ 33.054017] ? print_irqtrace_events+0x270/0x270 [ 33.058744] ? __lock_acquire+0x664/0x3e00 [ 33.062949] ? check_noncircular+0x20/0x20 [ 33.067160] ? find_held_lock+0x35/0x1d0 [ 33.071196] ? check_noncircular+0x20/0x20 [ 33.075404] ? task_will_free_mem+0x252/0xaa0 [ 33.079874] ? print_irqtrace_events+0x270/0x270 [ 33.084604] ? ___ratelimit+0x30d/0x630 [ 33.088550] ? lock_downgrade+0x980/0x980 [ 33.092675] ? lock_release+0xa40/0xa40 [ 33.096624] ? mark_held_locks+0xaf/0x100 [ 33.100741] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 33.105813] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 33.110801] ? trace_hardirqs_on+0xd/0x10 [ 33.114919] ? ___ratelimit+0x95/0x630 [ 33.118779] ? idr_get_free_cmn+0xfd0/0xfd0 [ 33.123068] ? check_noncircular+0x20/0x20 [ 33.127268] ? find_held_lock+0x138/0x1d0 [ 33.131408] oom_kill_process+0x8b5/0x14a0 [ 33.135627] ? has_ns_capability_noaudit+0x163/0x2a0 [ 33.140702] ? lock_downgrade+0x980/0x980 [ 33.144824] ? oom_evaluate_task+0x480/0x480 [ 33.149471] ? security_capable_noaudit+0x8b/0xc0 [ 33.154285] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 33.159357] ? has_capability+0x30/0x30 [ 33.163300] ? do_raw_spin_trylock+0x190/0x190 [ 33.167856] ? check_noncircular+0x20/0x20 [ 33.172064] ? has_capability_noaudit+0x24/0x30 [ 33.176701] ? oom_badness+0xd1/0x980 [ 33.180468] ? lock_release+0xa40/0xa40 [ 33.184414] ? do_try_to_free_pages+0xc53/0x1020 [ 33.189140] ? find_lock_task_mm+0x460/0x460 [ 33.193531] ? find_held_lock+0x35/0x1d0 [ 33.197568] ? out_of_memory+0xb3a/0x1220 [ 33.201685] ? lock_downgrade+0x980/0x980 [ 33.205809] ? lock_release+0xa40/0xa40 [ 33.209751] ? lock_acquire+0x1d5/0x580 [ 33.213697] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 33.218607] ? oom_evaluate_task+0x284/0x480 [ 33.222990] out_of_memory+0x86d/0x1220 [ 33.226942] ? oom_killer_disable+0x310/0x310 [ 33.231406] ? mutex_trylock+0x23a/0x2d0 [ 33.235438] ? __lock_is_held+0xb6/0x140 [ 33.239467] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 33.244897] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 33.249731] ? warn_alloc+0x2b0/0x2b0 [ 33.253499] ? check_noncircular+0x20/0x20 [ 33.257716] ? print_irqtrace_events+0x270/0x270 [ 33.262445] ? check_noncircular+0x20/0x20 [ 33.266654] ? find_held_lock+0x35/0x1d0 [ 33.270695] ? lock_acquire+0x1d5/0x580 [ 33.274640] ? lock_acquire+0x1d5/0x580 [ 33.278682] ? __lock_acquire+0x664/0x3e00 [ 33.282888] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 33.288740] ? lock_release+0xa40/0xa40 [ 33.292702] ? __lock_is_held+0xb6/0x140 [ 33.296743] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 33.302608] ? __might_sleep+0x95/0x190 [ 33.306557] __alloc_pages_nodemask+0x9fb/0xd80 [ 33.311203] ? lock_release+0xa40/0xa40 [ 33.315148] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 33.320144] ? pcpu_chunk_refresh_hint+0x425/0x570 [ 33.325049] ? print_irqtrace_events+0x270/0x270 [ 33.329796] ? __lock_is_held+0xb6/0x140 [ 33.333841] ? find_next_bit+0x27/0x30 [ 33.337789] pcpu_populate_chunk+0x1b3/0x880 [ 33.342178] pcpu_alloc+0x978/0x10e0 [ 33.345873] ? pcpu_free_area+0xa00/0xa00 [ 33.349996] ? vmap_page_range_noflush+0x523/0x720 [ 33.354910] ? map_vm_area+0x9e/0xd0 [ 33.358596] ? __vmalloc_node_range+0x37a/0x650 [ 33.363241] ? array_map_alloc+0x351/0xa00 [ 33.367443] ? __vmalloc_node_flags_caller+0x50/0x60 [ 33.372519] __alloc_percpu_gfp+0x27/0x30 [ 33.376643] array_map_alloc+0x778/0xa00 [ 33.380681] SyS_bpf+0x7f8/0x4400 [ 33.384102] ? check_noncircular+0x20/0x20 [ 33.388307] ? bpf_prog_get+0x20/0x20 [ 33.392083] ? perf_event_fork+0x30/0x30 [ 33.396121] ? __lock_is_held+0xb6/0x140 [ 33.400150] ? check_noncircular+0x20/0x20 [ 33.404365] ? __handle_mm_fault+0x80e/0x3ce0 [ 33.408833] ? check_noncircular+0x20/0x20 [ 33.413033] ? __pmd_alloc+0x4e0/0x4e0 [ 33.416895] ? vma_link+0xe9/0x170 [ 33.420409] ? find_held_lock+0x35/0x1d0 [ 33.424445] ? handle_mm_fault+0x248/0x8d0 [ 33.428649] ? find_held_lock+0x35/0x1d0 [ 33.432686] ? __do_page_fault+0x5f7/0xc90 [ 33.436894] ? lock_downgrade+0x980/0x980 [ 33.441017] ? handle_mm_fault+0x410/0x8d0 [ 33.445217] ? down_read_trylock+0xdb/0x170 [ 33.449506] ? __do_page_fault+0x32d/0xc90 [ 33.453717] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 33.458267] ? vmacache_find+0x5f/0x280 [ 33.462210] ? vmacache_update+0xfe/0x130 [ 33.466332] ? up_read+0x1a/0x40 [ 33.469666] ? __do_page_fault+0x3d6/0xc90 [ 33.473880] ? mm_fault_error+0x2c0/0x2c0 [ 33.478005] ? do_page_fault+0xee/0x720 [ 33.481950] ? __do_page_fault+0xc90/0xc90 [ 33.486162] ? SyS_mmap_pgoff+0x243/0x5f0 [ 33.490288] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 33.495024] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 33.499746] RIP: 0033:0x440139 [ 33.502905] RSP: 002b:00007ffddceb8b48 EFLAGS: 00000217 ORIG_RAX: 0000000000000141 [ 33.510601] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 0000000000440139 [ 33.517845] RDX: 000000000000002c RSI: 0000000020c47fec RDI: 0000000000000000 [ 33.525085] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 33.532336] R10: 00000000ffffffff R11: 0000000000000217 R12: 00000000004016a0 [ 33.539578] R13: 0000000000401730 R14: 0000000000000000 R15: 0000000000000000 [ 33.547137] Mem-Info: [ 33.550656] active_anon:6688 inactive_anon:63 isolated_anon:0 [ 33.550656] active_file:29 inactive_file:0 isolated_file:0 [ 33.550656] unevictable:0 dirty:0 writeback:0 unstable:0 [ 33.550656] slab_reclaimable:7249 slab_unreclaimable:83072 [ 33.550656] mapped:3 shmem:70 pagetables:310 bounce:0 [ 33.550656] free:24033 free_pcp:17 free_cma:0 [ 33.584185] Node 0 active_anon:26752kB inactive_anon:252kB active_file:116kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:12kB dirty:0kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 16384kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 33.611839] 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 [ 33.638926] lowmem_reserve[]: 0 2870 6381 6381 [ 33.643576] Node 0 DMA32 free:43744kB min:30332kB low:37912kB high:45492kB active_anon:28kB inactive_anon:4kB active_file:4kB inactive_file:4kB unevictable:0kB writepending:0kB present:3129332kB managed:2942340kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 33.670857] lowmem_reserve[]: 0 0 3510 3510 [ 33.675198] Node 0 Normal free:36836kB min:37084kB low:46352kB high:55620kB active_anon:26724kB inactive_anon:248kB active_file:0kB inactive_file:132kB unevictable:0kB writepending:0kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3104kB pagetables:1240kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 33.704605] lowmem_reserve[]: 0 0 0 0 [ 33.708436] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 33.722102] Node 0 DMA32: 6*4kB (UM) 5*8kB (UM) 6*16kB (UM) 2*32kB (UM) 4*64kB (UM) 4*128kB (M) 5*256kB (UM) 3*512kB (M) 3*1024kB (UM) 2*2048kB (M) 8*4096kB (M) = 43744kB [ 33.737543] Node 0 Normal: 579*4kB (UM) 419*8kB (M) 260*16kB (UM) 158*32kB (UM) 99*64kB (UM) 18*128kB (UM) 30*256kB (M) 11*512kB (UM) 0*1024kB 0*2048kB 0*4096kB = 36836kB [ 33.752962] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 33.761806] 98 total pagecache pages [ 33.765551] 0 pages in swap cache [ 33.769030] Swap cache stats: add 0, delete 0, find 0/0 [ 33.774410] Free swap = 0kB [ 33.777440] Total swap = 0kB [ 33.780458] 1965979 pages RAM [ 33.783565] 0 pages HighMem/MovableOnly [ 33.787547] 327760 pages reserved [ 33.791029] Unreclaimable slab info: [ 33.794758] Name Used Total [ 33.800314] hashtab_node 118KB 119KB [ 33.805698] ebitmap_node 382KB 385KB [ 33.811083] avtab_node 1012KB 1013KB [ 33.824820] TIPC 1KB 7KB [ 33.830192] SCTPv6 2KB 4KB [ 33.835561] DCCPv6 2KB 7KB [ 33.840949] DCCP 2KB 6KB [ 33.846348] fib6_nodes 0KB 4KB [ 33.851766] ip6_dst_cache 6KB 7KB [ 33.857149] RAWv6 9KB 19KB [ 33.862533] UDPv6 12KB 14KB [ 33.867912] TCPv6 2KB 5KB [ 33.873306] sd_ext_cdb 0KB 3KB [ 33.878694] scsi_sense_cache 91KB 148KB [ 33.884075] virtio_scsi_cmd 16KB 16KB [ 33.889454] sgpool-128 8KB 8KB [ 33.894833] sgpool-64 4KB 6KB [ 33.900210] sgpool-32 70KB 70KB [ 33.905585] sgpool-16 22KB 22KB [ 33.910968] sgpool-8 172KB 172KB [ 33.916354] cfq_io_cq 17KB 19KB [ 33.921743] cfq_queue 27KB 27KB [ 33.927108] mqueue_inode_cache 1KB 7KB [ 33.932569] nfs_commit_data 3KB 7KB [ 33.937958] nfs_write_data 34KB 37KB [ 33.943329] jbd2_inode 1KB 3KB [ 33.948703] ext4_system_zone 0KB 3KB [ 33.954099] bio-1 1KB 3KB [ 33.959487] rpc_buffers 17KB 19KB [ 33.964874] rpc_tasks 2KB 3KB [ 33.970247] UNIX 777KB 780KB [ 33.975631] tcp_bind_bucket 0KB 4KB [ 33.981039] ip_fib_trie 0KB 3KB [ 33.986421] ip_fib_alias 0KB 3KB [ 33.991809] ip_dst_cache 4KB 7KB [ 33.997175] RAW 5KB 7KB [ 34.002549] UDP 29KB 39KB [ 34.007934] TCP 7KB 15KB [ 34.013299] hugetlbfs_inode_cache 1KB 7KB [ 34.019039] eventpoll_pwq 9KB 11KB [ 34.024420] eventpoll_epi 17KB 23KB [ 34.029802] inotify_inode_mark 3KB 11KB [ 34.035257] request_queue 53KB 135KB [ 34.040631] blkdev_ioc 23KB 23KB [ 34.046042] bio-0 281KB 281KB [ 34.051428] biovec-(1<<(21-12)) 470KB 470KB [ 34.056983] biovec-64 102KB 102KB [ 34.062355] biovec-16 18KB 18KB [ 34.067748] bio_integrity_payload 0KB 4KB [ 34.073476] khugepaged_mm_slot 0KB 3KB [ 34.078949] uid_cache 0KB 3KB [ 34.084309] dmaengine-unmap-2 0KB 3KB [ 34.089681] audit_buffer 0KB 3KB [ 34.095062] skbuff_fclone_cache 138KB 142KB [ 34.100621] skbuff_head_cache 1791KB 1792KB [ 34.105998] configfs_dir_cache 0KB 4KB [ 34.111446] file_lock_cache 160KB 166KB [ 34.116820] file_lock_ctx 1KB 3KB [ 34.122197] fsnotify_mark_connector 2KB 3KB [ 34.128103] shmem_inode_cache 1046KB 1046KB [ 34.133515] task_delay_info 322KB 336KB [ 34.138885] sigqueue 367KB 370KB [ 34.144285] kernfs_node_cache 2285KB 2287KB [ 34.149672] mnt_cache 15KB 16KB [ 34.155049] filp 8405KB 8865KB [ 34.160422] names_cache 110797KB 110835KB [ 34.165806] avc_node 38KB 39KB [ 34.171171] selinux_file_security 428KB 488KB [ 34.176894] selinux_inode_security 1946KB 1948KB [ 34.182717] key_jar 3KB 7KB [ 34.188096] nsproxy 0KB 3KB [ 34.193489] vm_area_struct 18812KB 18817KB [ 34.198884] mm_struct 4559KB 4570KB [ 34.204259] fs_cache 429KB 432KB [ 34.209633] files_cache 1605KB 1612KB [ 34.215036] signal_cache 2560KB 2565KB [ 34.220421] sighand_cache 242KB 353KB [ 34.225804] task_struct 10933KB 10945KB [ 34.231187] cred_jar 2372KB 2376KB [ 34.236571] anon_vma_chain 7894KB 7898KB [ 34.241956] anon_vma 187KB 377KB [ 34.247314] pid 228KB 248KB [ 34.252689] Acpi-Operand 106KB 170KB [ 34.258071] Acpi-Parse 0KB 3KB [ 34.263482] Acpi-State 0KB 7KB [ 34.268865] Acpi-Namespace 19KB 23KB [ 34.274231] numa_policy 0KB 3KB [ 34.279610] debug_objects_cache 531KB 531KB [ 34.285163] trace_event_file 144KB 147KB [ 34.290546] ftrace_event_field 254KB 255KB [ 34.296040] pool_workqueue 24KB 28KB [ 34.301421] page->ptl 3136KB 3142KB [ 34.306825] kmalloc-262144 1032KB 1032KB [ 34.312221] kmalloc-131072 650KB 650KB [ 34.317602] kmalloc-65536 264KB 264KB [ 34.322988] kmalloc-32768 825KB 825KB [ 34.328374] kmalloc-16384 181KB 181KB [ 34.333751] kmalloc-8192 470KB 470KB [ 34.339131] kmalloc-4096 6630KB 6668KB [ 34.344514] kmalloc-2048 3244KB 3244KB [ 34.349897] kmalloc-1024 3654KB 3654KB [ 34.355265] kmalloc-512 2784KB 2786KB [ 34.360641] kmalloc-256 1954KB 2426KB [ 34.366035] kmalloc-128 411KB 531KB [ 34.371418] kmalloc-96 2052KB 2052KB [ 34.376803] kmalloc-64 2460KB 2460KB [ 34.382185] kmalloc-32 2405KB 2405KB [ 34.387576] kmalloc-192 907KB 908KB [ 34.392962] kmem_cache 101KB 105KB [ 34.398320] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 34.406940] [ 1813] 0 1813 5411 194 86016 0 -1000 udevd [ 34.415101] [ 3370] 0 3370 2493 573 57344 0 0 dhclient [ 34.423528] [ 3507] 0 3507 14298 173 114688 0 0 rsyslogd [ 34.431962] [ 3562] 0 3562 4725 50 86016 0 0 cron [ 34.440049] [ 3581] 0 3581 3736 44 69632 0 0 mcstransd [ 34.448574] [ 3609] 0 3609 12490 152 131072 0 -1000 sshd [ 34.456695] [ 3633] 0 3633 3694 41 77824 0 0 getty [ 34.464883] [ 3634] 0 3634 3694 41 77824 0 0 getty [ 34.473060] [ 3635] 0 3635 3694 41 77824 0 0 getty [ 34.481233] [ 3636] 0 3636 3694 40 73728 0 0 getty [ 34.489402] [ 3637] 0 3637 3694 42 73728 0 0 getty [ 34.497573] [ 3638] 0 3638 3694 39 73728 0 0 getty [ 34.505835] [ 3639] 0 3639 3649 40 73728 0 0 getty [ 34.514008] [ 3642] 0 3642 5674 454 86016 0 -1000 udevd [ 34.522214] [ 3643] 0 3643 5674 454 86016 0 -1000 udevd [ 34.530386] [ 3660] 0 3660 17821 198 180224 0 0 sshd [ 34.538476] [ 3662] 0 3662 280 1 32768 0 0 syzkaller422145 [ 34.547501] [ 3663] 0 3663 4375 523 36864 0 0 syzkaller422145 [ 34.556531] [ 3664] 0 3664 4375 523 36864 0 0 syzkaller422145 [ 34.565558] [ 3665] 0 3665 4375 523 36864 0 0 syzkaller422145 [ 34.574582] [ 3666] 0 3666 4375 523 36864 0 0 syzkaller422145 [ 34.583621] [ 3667] 0 3667 4375 523 36864 0 0 syzkaller422145 [ 34.592659] [ 3668] 0 3668 4375 523 36864 0 0 syzkaller422145 [ 34.601732] [ 3669] 0 3669 4375 523 36864 0 0 syzkaller422145 [ 34.610774] [ 3670] 0 3670 4375 523 36864 0 0 syzkaller422145 [ 34.619793] Out of memory: Kill process 3370 (dhclient) score 0 or sacrifice child [ 34.627818] Killed process 3370 (dhclient) total-vm:9972kB, anon-rss:2292kB, file-rss:0kB, shmem-rss:0kB [ 34.650321] syzkaller422145 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 34.662851] syzkaller422145 cpuset=/ mems_allowed=0 [ 34.667903] CPU: 0 PID: 3665 Comm: syzkaller422145 Not tainted 4.15.0-rc8+ #263 [ 34.675320] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.684661] Call Trace: [ 34.687234] dump_stack+0x194/0x257 [ 34.690845] ? arch_local_irq_restore+0x53/0x53 [ 34.695491] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 34.700664] dump_header+0x28c/0xe1e [ 34.704358] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 34.709526] ? pagefault_out_of_memory+0x152/0x152 [ 34.714428] ? check_noncircular+0x20/0x20 [ 34.718640] ? print_irqtrace_events+0x270/0x270 [ 34.723376] ? __lock_acquire+0x664/0x3e00 [ 34.727587] ? check_noncircular+0x20/0x20 [ 34.731841] ? find_held_lock+0x35/0x1d0 [ 34.735880] ? check_noncircular+0x20/0x20 [ 34.740086] ? task_will_free_mem+0x252/0xaa0 [ 34.744559] ? print_irqtrace_events+0x270/0x270 [ 34.749296] ? ___ratelimit+0x30d/0x630 [ 34.753254] ? lock_downgrade+0x980/0x980 [ 34.757383] ? lock_release+0xa40/0xa40 [ 34.761339] ? mark_held_locks+0xaf/0x100 [ 34.765466] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 34.770554] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 34.775552] ? trace_hardirqs_on+0xd/0x10 [ 34.779679] ? ___ratelimit+0x95/0x630 [ 34.783542] ? idr_get_free_cmn+0xfd0/0xfd0 [ 34.787841] ? check_noncircular+0x20/0x20 [ 34.792052] ? find_held_lock+0x138/0x1d0 [ 34.796197] oom_kill_process+0x8b5/0x14a0 [ 34.800423] ? has_ns_capability_noaudit+0x163/0x2a0 [ 34.805508] ? lock_downgrade+0x980/0x980 [ 34.809643] ? oom_evaluate_task+0x480/0x480 [ 34.814054] ? security_capable_noaudit+0x8b/0xc0 [ 34.818887] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 34.823969] ? has_capability+0x30/0x30 [ 34.827920] ? do_raw_spin_trylock+0x190/0x190 [ 34.832486] ? check_noncircular+0x20/0x20 [ 34.836709] ? has_capability_noaudit+0x24/0x30 [ 34.841366] ? oom_badness+0xd1/0x980 [ 34.845138] ? lock_release+0xa40/0xa40 [ 34.849085] ? do_try_to_free_pages+0xc53/0x1020 [ 34.853818] ? find_lock_task_mm+0x460/0x460 [ 34.858216] ? find_held_lock+0x35/0x1d0 [ 34.862274] ? out_of_memory+0xb3a/0x1220 [ 34.866407] ? lock_downgrade+0x980/0x980 [ 34.870546] ? lock_release+0xa40/0xa40 [ 34.874501] ? lock_acquire+0x1d5/0x580 [ 34.878461] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 34.883380] ? oom_evaluate_task+0x284/0x480 [ 34.887770] out_of_memory+0x86d/0x1220 [ 34.891736] ? oom_killer_disable+0x310/0x310 [ 34.896211] ? mutex_trylock+0x23a/0x2d0 [ 34.900258] ? __lock_is_held+0xb6/0x140 [ 34.904303] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 34.909745] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 34.914615] ? warn_alloc+0x2b0/0x2b0 [ 34.918411] ? __schedule+0x8f3/0x2060 [ 34.922285] ? print_irqtrace_events+0x270/0x270 [ 34.927031] ? __sched_text_start+0x8/0x8 [ 34.931163] ? lock_acquire+0x1d5/0x580 [ 34.935109] ? lock_acquire+0x1d5/0x580 [ 34.939062] ? __lock_acquire+0x664/0x3e00 [ 34.943283] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 34.949184] ? __lock_is_held+0xb6/0x140 [ 34.953236] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 34.959107] ? __might_sleep+0x95/0x190 [ 34.963064] __alloc_pages_nodemask+0x9fb/0xd80 [ 34.967709] ? __queue_work+0x5b9/0x1230 [ 34.971746] ? lock_release+0xa40/0xa40 [ 34.975725] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 34.980726] ? pcpu_chunk_refresh_hint+0x425/0x570 [ 34.985639] ? print_irqtrace_events+0x270/0x270 [ 34.990390] ? __lock_is_held+0xb6/0x140 [ 34.994452] ? find_next_bit+0x27/0x30 [ 34.998334] pcpu_populate_chunk+0x1b3/0x880 [ 35.002739] pcpu_alloc+0x978/0x10e0 [ 35.006461] ? pcpu_free_area+0xa00/0xa00 [ 35.010601] ? vmap_page_range_noflush+0x523/0x720 [ 35.015536] ? map_vm_area+0x9e/0xd0 [ 35.019230] ? __vmalloc_node_range+0x37a/0x650 [ 35.023891] ? array_map_alloc+0x351/0xa00 [ 35.028108] ? __vmalloc_node_flags_caller+0x50/0x60 [ 35.033196] __alloc_percpu_gfp+0x27/0x30 [ 35.037324] array_map_alloc+0x778/0xa00 [ 35.041372] SyS_bpf+0x7f8/0x4400 [ 35.044801] ? check_noncircular+0x20/0x20 [ 35.049021] ? bpf_prog_get+0x20/0x20 [ 35.052805] ? perf_event_fork+0x30/0x30 [ 35.056854] ? __lock_is_held+0xb6/0x140 [ 35.060988] ? check_noncircular+0x20/0x20 [ 35.065208] ? __handle_mm_fault+0x80e/0x3ce0 [ 35.069813] ? check_noncircular+0x20/0x20 [ 35.074028] ? __pmd_alloc+0x4e0/0x4e0 [ 35.077898] ? vma_link+0xe9/0x170 [ 35.081430] ? find_held_lock+0x35/0x1d0 [ 35.085479] ? handle_mm_fault+0x248/0x8d0 [ 35.089694] ? find_held_lock+0x35/0x1d0 [ 35.093741] ? __do_page_fault+0x5f7/0xc90 [ 35.097954] ? lock_downgrade+0x980/0x980 [ 35.102098] ? handle_mm_fault+0x410/0x8d0 [ 35.106318] ? down_read_trylock+0xdb/0x170 [ 35.110625] ? __do_page_fault+0x32d/0xc90 [ 35.114841] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 35.119397] ? vmacache_find+0x5f/0x280 [ 35.123344] ? vmacache_update+0xfe/0x130 [ 35.127474] ? up_read+0x1a/0x40 [ 35.130819] ? __do_page_fault+0x3d6/0xc90 [ 35.135041] ? mm_fault_error+0x2c0/0x2c0 [ 35.139178] ? do_page_fault+0xee/0x720 [ 35.143130] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 35.148651] ? __do_page_fault+0xc90/0xc90 [ 35.152878] ? SyS_mmap_pgoff+0x243/0x5f0 [ 35.157032] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 35.161787] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 35.166523] RIP: 0033:0x440139 [ 35.169689] RSP: 002b:00007ffddceb8b48 EFLAGS: 00000217 ORIG_RAX: 0000000000000141 [ 35.177373] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 0000000000440139 [ 35.184624] RDX: 000000000000002c RSI: 0000000020c47fec RDI: 0000000000000000 [ 35.191874] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 35.199121] R10: 00000000ffffffff R11: 0000000000000217 R12: 00000000004016a0 [ 35.206373] R13: 0000000000401730 R14: 0000000000000000 R15: 0000000000000000 [ 35.213733] Mem-Info: [ 35.216501] active_anon:6138 inactive_anon:63 isolated_anon:0 [ 35.216501] active_file:14 inactive_file:0 isolated_file:0 [ 35.216501] unevictable:0 dirty:0 writeback:0 unstable:0 [ 35.216501] slab_reclaimable:7249 slab_unreclaimable:83067 [ 35.216501] mapped:25 shmem:70 pagetables:310 bounce:0 [ 35.216501] free:24066 free_pcp:15 free_cma:0 [ 35.249141] Node 0 active_anon:24460kB inactive_anon:252kB active_file:20kB inactive_file:92kB 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 [ 35.277095] 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 [ 35.304154] lowmem_reserve[]: 0 2870 6381 6381 [ 35.309588] Node 0 DMA32 free:43744kB min:30332kB low:37912kB high:45492kB active_anon:28kB inactive_anon:4kB active_file:4kB inactive_file:4kB unevictable:0kB writepending:0kB present:3129332kB managed:2942340kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 35.337639] lowmem_reserve[]: 0 0 3510 3510 [ 35.342033] Node 0 Normal free:36736kB min:37084kB low:46352kB high:55620kB active_anon:24432kB inactive_anon:248kB active_file:60kB inactive_file:44kB unevictable:0kB writepending:0kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3072kB pagetables:1204kB bounce:0kB free_pcp:64kB local_pcp:0kB free_cma:0kB [ 35.370637] lowmem_reserve[]: 0 0 0 0 [ 35.374475] 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 [ 35.388126] Node 0 DMA32: 6*4kB (UM) 5*8kB (UM) 6*16kB (UM) 2*32kB (UM) 4*64kB (UM) 4*128kB (M) 5*256kB (UM) 3*512kB (M) 3*1024kB (UM) 2*2048kB (M) 8*4096kB (M) = 43744kB [ 35.403629] Node 0 Normal: 464*4kB (UME) 332*8kB (ME) 252*16kB (UME) 171*32kB (UME) 105*64kB (UM) 23*128kB (UM) 29*256kB (M) 11*512kB (UM) 0*1024kB 0*2048kB 0*4096kB = 36736kB [ 35.419526] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 35.428108] 98 total pagecache pages [ 35.431838] 0 pages in swap cache [ 35.435290] Swap cache stats: add 0, delete 0, find 0/0 [ 35.440658] Free swap = 0kB [ 35.443686] Total swap = 0kB [ 35.446706] 1965979 pages RAM [ 35.449805] 0 pages HighMem/MovableOnly [ 35.453779] 327760 pages reserved [ 35.457245] Unreclaimable slab info: [ 35.460969] Name Used Total [ 35.466522] hashtab_node 118KB 119KB [ 35.471894] ebitmap_node 382KB 385KB [ 35.477271] avtab_node 1012KB 1013KB [ 35.482657] TIPC 1KB 7KB [ 35.488038] SCTPv6 2KB 4KB [ 35.493427] DCCPv6 2KB 7KB [ 35.498792] DCCP 2KB 6KB [ 35.504186] fib6_nodes 0KB 4KB [ 35.509561] ip6_dst_cache 6KB 7KB [ 35.514951] RAWv6 9KB 19KB [ 35.520333] UDPv6 12KB 14KB [ 35.525721] TCPv6 2KB 5KB [ 35.531211] sd_ext_cdb 0KB 3KB [ 35.536598] scsi_sense_cache 91KB 148KB [ 35.541980] virtio_scsi_cmd 16KB 16KB [ 35.547371] sgpool-128 8KB 8KB [ 35.552774] sgpool-64 4KB 6KB [ 35.558152] sgpool-32 70KB 70KB [ 35.563558] sgpool-16 22KB 22KB [ 35.568948] sgpool-8 172KB 172KB [ 35.574316] cfq_io_cq 17KB 19KB [ 35.579690] cfq_queue 27KB 27KB [ 35.585070] mqueue_inode_cache 1KB 7KB [ 35.590540] nfs_commit_data 3KB 7KB [ 35.595902] nfs_write_data 34KB 37KB [ 35.601277] jbd2_inode 1KB 3KB [ 35.606658] ext4_system_zone 0KB 3KB [ 35.612059] bio-1 1KB 3KB [ 35.617446] rpc_buffers 17KB 19KB [ 35.622826] rpc_tasks 2KB 3KB [ 35.628225] UNIX 777KB 780KB [ 35.633617] tcp_bind_bucket 0KB 4KB [ 35.638986] ip_fib_trie 0KB 3KB [ 35.644370] ip_fib_alias 0KB 3KB [ 35.649756] ip_dst_cache 4KB 7KB [ 35.655127] RAW 5KB 7KB [ 35.660501] UDP 29KB 39KB [ 35.665883] TCP 7KB 15KB [ 35.671247] hugetlbfs_inode_cache 1KB 7KB [ 35.676972] eventpoll_pwq 9KB 11KB [ 35.682351] eventpoll_epi 17KB 23KB [ 35.687765] inotify_inode_mark 3KB 11KB [ 35.694265] request_queue 53KB 135KB [ 35.699643] blkdev_ioc 23KB 23KB [ 35.705041] bio-0 285KB 285KB [ 35.710425] biovec-(1<<(21-12)) 470KB 470KB [ 35.715966] biovec-64 102KB 102KB [ 35.721338] biovec-16 18KB 18KB [ 35.726717] bio_integrity_payload 0KB 4KB [ 35.732443] khugepaged_mm_slot 0KB 3KB [ 35.737908] uid_cache 0KB 3KB [ 35.743330] dmaengine-unmap-2 0KB 3KB [ 35.748712] audit_buffer 0KB 3KB [ 35.754085] skbuff_fclone_cache 138KB 142KB [ 35.759632] skbuff_head_cache 1791KB 1792KB [ 35.765034] configfs_dir_cache 0KB 4KB [ 35.770503] file_lock_cache 160KB 166KB [ 35.775869] file_lock_ctx 1KB 3KB [ 35.781248] fsnotify_mark_connector 2KB 3KB [ 35.787149] shmem_inode_cache 1046KB 1046KB [ 35.792529] task_delay_info 322KB 336KB [ 35.797900] sigqueue 367KB 370KB [ 35.803279] kernfs_node_cache 2285KB 2287KB [ 35.808663] mnt_cache 15KB 16KB [ 35.814041] filp 8405KB 8865KB [ 35.819422] names_cache 110797KB 110835KB [ 35.824808] avc_node 38KB 39KB [ 35.830190] selinux_file_security 428KB 488KB [ 35.835904] selinux_inode_security 1946KB 1948KB [ 35.841711] key_jar 3KB 7KB [ 35.847074] nsproxy 0KB 3KB [ 35.852445] vm_area_struct 18812KB 18817KB [ 35.857827] mm_struct 4559KB 4570KB [ 35.863188] fs_cache 429KB 432KB [ 35.868568] files_cache 1605KB 1612KB [ 35.873945] signal_cache 2560KB 2565KB [ 35.879306] sighand_cache 242KB 353KB [ 35.884679] task_struct 10933KB 10945KB [ 35.890055] cred_jar 2372KB 2376KB [ 35.895435] anon_vma_chain 7894KB 7898KB [ 35.900820] anon_vma 187KB 377KB [ 35.906185] pid 228KB 248KB [ 35.911565] Acpi-Operand 106KB 170KB [ 35.916945] Acpi-Parse 0KB 3KB [ 35.922311] Acpi-State 0KB 7KB [ 35.927682] Acpi-Namespace 19KB 23KB [ 35.933064] numa_policy 0KB 3KB [ 35.938446] debug_objects_cache 531KB 531KB [ 35.944007] trace_event_file 144KB 147KB [ 35.949409] ftrace_event_field 254KB 255KB [ 35.954868] pool_workqueue 24KB 28KB [ 35.960247] page->ptl 3136KB 3142KB [ 35.965654] kmalloc-262144 1032KB 1032KB [ 35.971042] kmalloc-131072 650KB 650KB [ 35.976424] kmalloc-65536 264KB 264KB [ 35.981808] kmalloc-32768 825KB 825KB [ 35.987171] kmalloc-16384 181KB 181KB [ 35.992549] kmalloc-8192 470KB 470KB [ 35.997933] kmalloc-4096 6630KB 6668KB [ 36.003300] kmalloc-2048 3244KB 3244KB [ 36.008670] kmalloc-1024 3669KB 3669KB [ 36.014047] kmalloc-512 2784KB 2786KB [ 36.019433] kmalloc-256 1954KB 2426KB [ 36.024821] kmalloc-128 411KB 531KB [ 36.030188] kmalloc-96 2056KB 2056KB [ 36.035578] kmalloc-64 2464KB 2464KB [ 36.040959] kmalloc-32 2405KB 2405KB [ 36.046325] kmalloc-192 907KB 908KB [ 36.051699] kmem_cache 101KB 105KB [ 36.057076] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 36.065698] [ 1813] 0 1813 5411 193 86016 0 -1000 udevd [ 36.073869] [ 3507] 0 3507 14298 173 114688 0 0 rsyslogd [ 36.082326] [ 3562] 0 3562 4725 50 86016 0 0 cron [ 36.090407] [ 3581] 0 3581 3736 44 69632 0 0 mcstransd [ 36.098931] [ 3609] 0 3609 12490 152 131072 0 -1000 sshd [ 36.107042] [ 3633] 0 3633 3694 41 77824 0 0 getty [ 36.115215] [ 3634] 0 3634 3694 41 77824 0 0 getty [ 36.123387] [ 3635] 0 3635 3694 41 77824 0 0 getty [ 36.131562] [ 3636] 0 3636 3694 40 73728 0 0 getty [ 36.139731] [ 3637] 0 3637 3694 42 73728 0 0 getty [ 36.147931] [ 3638] 0 3638 3694 39 73728 0 0 getty [ 36.156099] [ 3639] 0 3639 3649 40 73728 0 0 getty [ 36.164241] [ 3642] 0 3642 5674 454 86016 0 -1000 udevd [ 36.172376] [ 3643] 0 3643 5674 454 86016 0 -1000 udevd [ 36.180511] [ 3660] 0 3660 17821 198 180224 0 0 sshd [ 36.188564] [ 3662] 0 3662 280 1 32768 0 0 syzkaller422145 [ 36.197572] [ 3663] 0 3663 4375 523 36864 0 0 syzkaller422145 [ 36.206577] [ 3664] 0 3664 4375 523 36864 0 0 syzkaller422145 [ 36.215586] [ 3665] 0 3665 4375 523 36864 0 0 syzkaller422145 [ 36.224593] [ 3666] 0 3666 4375 523 36864 0 0 syzkaller422145 [ 36.233604] [ 3667] 0 3667 4375 523 36864 0 0 syzkaller422145 [ 36.242618] [ 3668] 0 3668 4375 523 36864 0 0 syzkaller422145 [ 36.251636] [ 3669] 0 3669 4375 523 36864 0 0 syzkaller422145 [ 36.260674] [ 3670] 0 3670 4375 523 36864 0 0 syzkaller422145 [ 36.269703] Out of memory: Kill process 3663 (syzkaller422145) score 0 or sacrifice child [ 36.278064] Killed process 3663 (syzkaller422145) total-vm:17500kB, anon-rss:2092kB, file-rss:0kB, shmem-rss:0kB [ 36.291124] oom_reaper: reaped process 3663 (syzkaller422145), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 36.308187] syzkaller422145 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 36.320589] syzkaller422145 cpuset=/ mems_allowed=0 [ 36.325663] CPU: 1 PID: 3667 Comm: syzkaller422145 Not tainted 4.15.0-rc8+ #263 [ 36.333098] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.342445] Call Trace: [ 36.345049] dump_stack+0x194/0x257 [ 36.348854] ? arch_local_irq_restore+0x53/0x53 [ 36.353523] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 36.358722] dump_header+0x28c/0xe1e [ 36.362445] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 36.367640] ? pagefault_out_of_memory+0x152/0x152 [ 36.372565] ? check_noncircular+0x20/0x20 [ 36.376796] ? print_irqtrace_events+0x270/0x270 [ 36.381567] ? __lock_acquire+0x664/0x3e00 [ 36.385800] ? check_noncircular+0x20/0x20 [ 36.390053] ? find_held_lock+0x35/0x1d0 [ 36.394119] ? check_noncircular+0x20/0x20 [ 36.398349] ? task_will_free_mem+0x252/0xaa0 [ 36.402848] ? print_irqtrace_events+0x270/0x270 [ 36.407598] ? ___ratelimit+0x30d/0x630 [ 36.411564] ? lock_downgrade+0x980/0x980 [ 36.415714] ? lock_release+0xa40/0xa40 [ 36.419689] ? mark_held_locks+0xaf/0x100 [ 36.423832] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 36.428962] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 36.433984] ? trace_hardirqs_on+0xd/0x10 [ 36.438233] ? ___ratelimit+0x95/0x630 [ 36.442118] ? idr_get_free_cmn+0xfd0/0xfd0 [ 36.446442] ? check_noncircular+0x20/0x20 [ 36.450661] ? find_held_lock+0x138/0x1d0 [ 36.454815] oom_kill_process+0x8b5/0x14a0 [ 36.459054] ? has_ns_capability_noaudit+0x163/0x2a0 [ 36.464147] ? lock_downgrade+0x980/0x980 [ 36.468292] ? oom_evaluate_task+0x480/0x480 [ 36.472713] ? security_capable_noaudit+0x8b/0xc0 [ 36.477559] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 36.482647] ? has_capability+0x30/0x30 [ 36.486606] ? do_raw_spin_trylock+0x190/0x190 [ 36.491173] ? check_noncircular+0x20/0x20 [ 36.495421] ? has_capability_noaudit+0x24/0x30 [ 36.500084] ? oom_badness+0xd1/0x980 [ 36.503866] ? lock_release+0xa40/0xa40 [ 36.507826] ? do_try_to_free_pages+0xc53/0x1020 [ 36.512573] ? find_lock_task_mm+0x460/0x460 [ 36.516976] ? find_held_lock+0x35/0x1d0 [ 36.521047] ? out_of_memory+0xb3a/0x1220 [ 36.525193] ? lock_downgrade+0x980/0x980 [ 36.529339] ? lock_release+0xa40/0xa40 [ 36.533300] ? lock_acquire+0x1d5/0x580 [ 36.537264] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 36.542193] ? oom_evaluate_task+0x284/0x480 [ 36.546604] out_of_memory+0x86d/0x1220 [ 36.550588] ? oom_killer_disable+0x310/0x310 [ 36.555073] ? mutex_trylock+0x23a/0x2d0 [ 36.559131] ? __lock_is_held+0xb6/0x140 [ 36.563181] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 36.568638] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 36.573522] ? warn_alloc+0x2b0/0x2b0 [ 36.577316] ? lock_release+0xa40/0xa40 [ 36.581279] ? print_irqtrace_events+0x270/0x270 [ 36.586061] ? find_held_lock+0x35/0x1d0 [ 36.590127] ? __mutex_lock+0x5bd/0x1a80 [ 36.594182] ? __lock_acquire+0x664/0x3e00 [ 36.598407] ? lock_release+0xa40/0xa40 [ 36.602374] ? memset+0x31/0x40 [ 36.605649] ? do_raw_spin_trylock+0x190/0x190 [ 36.610255] ? __lock_is_held+0xb6/0x140 [ 36.614333] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 36.620209] ? find_held_lock+0x35/0x1d0 [ 36.624279] ? __might_sleep+0x95/0x190 [ 36.628252] __alloc_pages_nodemask+0x9fb/0xd80 [ 36.632924] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 36.637936] ? pcpu_chunk_refresh_hint+0x425/0x570 [ 36.642861] ? print_irqtrace_events+0x270/0x270 [ 36.647625] ? __lock_is_held+0xb6/0x140 [ 36.651698] ? find_next_bit+0x27/0x30 [ 36.655576] pcpu_populate_chunk+0x1b3/0x880 [ 36.659996] pcpu_alloc+0x978/0x10e0 [ 36.663726] ? pcpu_free_area+0xa00/0xa00 [ 36.667875] ? vmap_page_range_noflush+0x523/0x720 [ 36.672819] ? retint_kernel+0x10/0x10 [ 36.676710] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 36.681718] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 36.686478] ? retint_kernel+0x10/0x10 [ 36.690376] __alloc_percpu_gfp+0x27/0x30 [ 36.694512] array_map_alloc+0x778/0xa00 [ 36.698575] SyS_bpf+0x7f8/0x4400 [ 36.702016] ? check_noncircular+0x20/0x20 [ 36.706240] ? bpf_prog_get+0x20/0x20 [ 36.710033] ? perf_event_fork+0x30/0x30 [ 36.714103] ? __lock_is_held+0xb6/0x140 [ 36.718147] ? check_noncircular+0x20/0x20 [ 36.722378] ? __handle_mm_fault+0x80e/0x3ce0 [ 36.726872] ? check_noncircular+0x20/0x20 [ 36.731097] ? __pmd_alloc+0x4e0/0x4e0 [ 36.734977] ? vma_link+0xe9/0x170 [ 36.738520] ? find_held_lock+0x35/0x1d0 [ 36.742574] ? handle_mm_fault+0x248/0x8d0 [ 36.746803] ? find_held_lock+0x35/0x1d0 [ 36.750868] ? __do_page_fault+0x5f7/0xc90 [ 36.755107] ? lock_downgrade+0x980/0x980 [ 36.759262] ? handle_mm_fault+0x410/0x8d0 [ 36.763478] ? down_read_trylock+0xdb/0x170 [ 36.767779] ? __do_page_fault+0x32d/0xc90 [ 36.772016] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 36.776585] ? vmacache_find+0x5f/0x280 [ 36.780549] ? vmacache_update+0xfe/0x130 [ 36.784697] ? up_read+0x1a/0x40 [ 36.788051] ? __do_page_fault+0x3d6/0xc90 [ 36.792287] ? mm_fault_error+0x2c0/0x2c0 [ 36.796430] ? do_page_fault+0xee/0x720 [ 36.800387] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 36.805912] ? __do_page_fault+0xc90/0xc90 [ 36.810152] ? SyS_mmap_pgoff+0x243/0x5f0 [ 36.814305] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 36.819063] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 36.823800] RIP: 0033:0x440139 [ 36.826961] RSP: 002b:00007ffddceb8b48 EFLAGS: 00000217 ORIG_RAX: 0000000000000141 [ 36.834653] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 0000000000440139 [ 36.841906] RDX: 000000000000002c RSI: 0000000020c47fec RDI: 0000000000000000 [ 36.849156] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 36.856414] R10: 00000000ffffffff R11: 0000000000000217 R12: 00000000004016a0 [ 36.863673] R13: 0000000000401730 R14: 0000000000000000 R15: 0000000000000000 [ 36.871058] Mem-Info: [ 36.874148] active_anon:5598 inactive_anon:63 isolated_anon:0 [ 36.874148] active_file:14 inactive_file:14 isolated_file:0 [ 36.874148] unevictable:0 dirty:0 writeback:0 unstable:0 [ 36.874148] slab_reclaimable:7250 slab_unreclaimable:83069 [ 36.874148] mapped:2 shmem:70 pagetables:300 bounce:0 [ 36.874148] free:23239 free_pcp:0 free_cma:0 [ 36.906127] Node 0 active_anon:22392kB inactive_anon:252kB active_file:56kB inactive_file:56kB 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 [ 36.933039] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 36.959191] lowmem_reserve[]: 0 2870 6381 6381 [ 36.963801] Node 0 DMA32 free:43744kB min:30332kB low:37912kB high:45492kB active_anon:28kB inactive_anon:4kB active_file:4kB inactive_file:4kB unevictable:0kB writepending:0kB present:3129332kB managed:2942340kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 36.991073] lowmem_reserve[]: 0 0 3510 3510 [ 36.995494] Node 0 Normal free:33304kB min:37084kB low:46352kB high:55620kB active_anon:22364kB inactive_anon:248kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3072kB pagetables:1200kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 37.024833] lowmem_reserve[]: 0 0 0 0 [ 37.028682] 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 [ 37.042273] Node 0 DMA32: 6*4kB (UM) 5*8kB (UM) 6*16kB (UM) 2*32kB (UM) 4*64kB (UM) 4*128kB (M) 5*256kB (UM) 3*512kB (M) 3*1024kB (UM) 2*2048kB (M) 8*4096kB (M) = 43744kB [ 37.057752] Node 0 Normal: 434*4kB (UME) 312*8kB (ME) 235*16kB (UME) 161*32kB (UME) 95*64kB (UM) 22*128kB (M) 26*256kB (M) 9*512kB (UM) 0*1024kB 0*2048kB 0*4096kB = 33304kB [ 37.073347] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 37.081941] 98 total pagecache pages [ 37.085677] 0 pages in swap cache [ 37.089137] Swap cache stats: add 0, delete 0, find 0/0 [ 37.094514] Free swap = 0kB [ 37.097540] Total swap = 0kB [ 37.100574] 1965979 pages RAM [ 37.103687] 0 pages HighMem/MovableOnly [ 37.107667] 327760 pages reserved [ 37.111128] Unreclaimable slab info: [ 37.114850] Name Used Total [ 37.120389] hashtab_node 118KB 119KB [ 37.125760] ebitmap_node 382KB 385KB [ 37.131136] avtab_node 1012KB 1013KB [ 37.136521] TIPC 1KB 7KB [ 37.141887] SCTPv6 2KB 4KB [ 37.147268] DCCPv6 2KB 7KB [ 37.153465] DCCP 2KB 6KB [ 37.158870] fib6_nodes 0KB 4KB [ 37.164235] ip6_dst_cache 6KB 7KB [ 37.169614] RAWv6 9KB 19KB [ 37.175004] UDPv6 12KB 14KB [ 37.180408] TCPv6 2KB 5KB [ 37.185805] sd_ext_cdb 0KB 3KB [ 37.191189] scsi_sense_cache 91KB 148KB [ 37.196571] virtio_scsi_cmd 16KB 16KB [ 37.201967] sgpool-128 8KB 8KB [ 37.207347] sgpool-64 4KB 6KB [ 37.212714] sgpool-32 78KB 78KB [ 37.218097] sgpool-16 22KB 22KB [ 37.223480] sgpool-8 176KB 176KB [ 37.228866] cfq_io_cq 17KB 19KB [ 37.234245] cfq_queue 27KB 27KB [ 37.239625] mqueue_inode_cache 1KB 7KB [ 37.245093] nfs_commit_data 3KB 7KB [ 37.250466] nfs_write_data 34KB 37KB [ 37.255849] jbd2_inode 1KB 3KB [ 37.261235] ext4_system_zone 0KB 3KB [ 37.266610] bio-1 1KB 3KB [ 37.271999] rpc_buffers 17KB 19KB [ 37.277397] rpc_tasks 2KB 3KB [ 37.283602] UNIX 777KB 780KB [ 37.289004] tcp_bind_bucket 0KB 4KB [ 37.294413] ip_fib_trie 0KB 3KB [ 37.299791] ip_fib_alias 0KB 3KB [ 37.305172] ip_dst_cache 4KB 7KB [ 37.310552] RAW 5KB 7KB [ 37.315915] UDP 29KB 39KB [ 37.321294] TCP 7KB 15KB [ 37.326677] hugetlbfs_inode_cache 1KB 7KB [ 37.332392] eventpoll_pwq 9KB 11KB [ 37.337768] eventpoll_epi 17KB 23KB [ 37.343148] inotify_inode_mark 3KB 11KB [ 37.348636] request_queue 53KB 135KB [ 37.354027] blkdev_ioc 23KB 23KB [ 37.359409] bio-0 285KB 285KB [ 37.364791] biovec-(1<<(21-12)) 470KB 470KB [ 37.370331] biovec-64 110KB 110KB [ 37.375702] biovec-16 18KB 18KB [ 37.381086] bio_integrity_payload 0KB 4KB [ 37.386815] khugepaged_mm_slot 0KB 3KB [ 37.392269] uid_cache 0KB 3KB [ 37.397644] dmaengine-unmap-2 0KB 3KB [ 37.403041] audit_buffer 0KB 3KB [ 37.408422] skbuff_fclone_cache 138KB 142KB [ 37.413984] skbuff_head_cache 1791KB 1792KB [ 37.420162] configfs_dir_cache 0KB 4KB [ 37.425620] file_lock_cache 160KB 166KB [ 37.430993] file_lock_ctx 1KB 3KB [ 37.436373] fsnotify_mark_connector 2KB 3KB [ 37.442269] shmem_inode_cache 1046KB 1046KB [ 37.447659] task_delay_info 322KB 336KB [ 37.453039] sigqueue 367KB 370KB [ 37.458419] kernfs_node_cache 2285KB 2287KB [ 37.463795] mnt_cache 15KB 16KB [ 37.469170] filp 8405KB 8865KB [ 37.474533] names_cache 110797KB 110835KB [ 37.479909] avc_node 38KB 39KB [ 37.485291] selinux_file_security 428KB 488KB [ 37.491042] selinux_inode_security 1946KB 1948KB [ 37.496843] key_jar 3KB 7KB [ 37.502216] nsproxy 0KB 3KB [ 37.507592] vm_area_struct 18812KB 18817KB [ 37.512972] mm_struct 4559KB 4570KB [ 37.518351] fs_cache 429KB 432KB [ 37.523728] files_cache 1605KB 1612KB [ 37.530133] signal_cache 2560KB 2565KB [ 37.535518] sighand_cache 242KB 353KB [ 37.540900] task_struct 10933KB 10945KB [ 37.546316] cred_jar 2372KB 2376KB [ 37.552261] anon_vma_chain 7894KB 7898KB [ 37.557651] anon_vma 187KB 377KB [ 37.563046] pid 228KB 248KB [ 37.568425] Acpi-Operand 106KB 170KB [ 37.573805] Acpi-Parse 0KB 3KB [ 37.579180] Acpi-State 0KB 7KB [ 37.584556] Acpi-Namespace 19KB 23KB [ 37.589922] numa_policy 0KB 3KB [ 37.595297] debug_objects_cache 531KB 531KB [ 37.600844] trace_event_file 144KB 147KB [ 37.606222] ftrace_event_field 254KB 255KB [ 37.611714] pool_workqueue 24KB 28KB [ 37.617095] page->ptl 3136KB 3142KB [ 37.622507] kmalloc-262144 1032KB 1032KB [ 37.627883] kmalloc-131072 650KB 650KB [ 37.633263] kmalloc-65536 264KB 264KB [ 37.638641] kmalloc-32768 825KB 825KB [ 37.644035] kmalloc-16384 181KB 181KB [ 37.649413] kmalloc-8192 470KB 470KB [ 37.654790] kmalloc-4096 6630KB 6668KB [ 37.660164] kmalloc-2048 3244KB 3244KB [ 37.665537] kmalloc-1024 3669KB 3669KB [ 37.670915] kmalloc-512 2784KB 2786KB [ 37.677829] kmalloc-256 1954KB 2426KB [ 37.684955] kmalloc-128 411KB 531KB [ 37.691592] kmalloc-96 2056KB 2056KB [ 37.697854] kmalloc-64 2464KB 2464KB [ 37.704650] kmalloc-32 2405KB 2405KB [ 37.711276] kmalloc-192 907KB 908KB [ 37.717431] kmem_cache 101KB 105KB [ 37.722818] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 37.731816] [ 1813] 0 1813 5411 193 86016 0 -1000 udevd [ 37.740049] [ 3507] 0 3507 14298 173 114688 0 0 rsyslogd [ 37.748497] [ 3562] 0 3562 4725 50 86016 0 0 cron [ 37.756584] [ 3581] 0 3581 3736 44 69632 0 0 mcstransd [ 37.765133] [ 3609] 0 3609 12490 152 131072 0 -1000 sshd [ 37.773219] [ 3633] 0 3633 3694 41 77824 0 0 getty [ 37.781391] [ 3634] 0 3634 3694 41 77824 0 0 getty [ 37.789552] [ 3635] 0 3635 3694 41 77824 0 0 getty [ 37.797712] [ 3636] 0 3636 3694 40 73728 0 0 getty [ 37.805860] [ 3637] 0 3637 3694 42 73728 0 0 getty [ 37.814043] [ 3638] 0 3638 3694 39 73728 0 0 getty [ 37.822234] [ 3639] 0 3639 3649 40 73728 0 0 getty [ 37.830410] [ 3642] 0 3642 5674 454 86016 0 -1000 udevd [ 37.838567] [ 3643] 0 3643 5674 454 86016 0 -1000 udevd [ 37.846738] [ 3660] 0 3660 17821 198 180224 0 0 sshd [ 37.854819] [ 3662] 0 3662 280 1 32768 0 0 syzkaller422145 [ 37.863834] [ 3663] 0 3663 4375 0 32768 0 0 syzkaller422145 [ 37.872851] [ 3664] 0 3664 4375 523 36864 0 0 syzkaller422145 [ 37.881875] [ 3665] 0 3665 4375 523 36864 0 0 syzkaller422145 [ 37.890889] [ 3666] 0 3666 4375 523 36864 0 0 syzkaller422145 [ 37.899912] [ 3667] 0 3667 4375 523 36864 0 0 syzkaller422145 [ 37.908930] [ 3668] 0 3668 4375 523 36864 0 0 syzkaller422145 [ 37.917948] [ 3669] 0 3669 4375 523 36864 0 0 syzkaller422145 [ 37.926965] [ 3670] 0 3670 4375 523 36864 0 0 syzkaller422145 [ 37.935978] Out of memory: Kill process 3664 (syzkaller422145) score 0 or sacrifice child [ 37.944357] Killed process 3664 (syzkaller422145) total-vm:17500kB, anon-rss:2092kB, file-rss:0kB, shmem-rss:0kB [ 37.957050] oom_reaper: reaped process 3664 (syzkaller422145), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 37.968734] syzkaller422145 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 37.981840] syzkaller422145 cpuset=/ mems_allowed=0 [ 37.986972] CPU: 1 PID: 3667 Comm: syzkaller422145 Not tainted 4.15.0-rc8+ #263 [ 37.994403] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.003745] Call Trace: [ 38.006328] dump_stack+0x194/0x257 [ 38.009952] ? arch_local_irq_restore+0x53/0x53 [ 38.014615] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 38.019797] dump_header+0x28c/0xe1e [ 38.023506] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 38.028693] ? pagefault_out_of_memory+0x152/0x152 [ 38.033613] ? check_noncircular+0x20/0x20 [ 38.037844] ? print_irqtrace_events+0x270/0x270 [ 38.042685] ? __lock_acquire+0x664/0x3e00 [ 38.046907] ? check_noncircular+0x20/0x20 [ 38.051225] ? find_held_lock+0x35/0x1d0 [ 38.055291] ? check_noncircular+0x20/0x20 [ 38.059515] ? task_will_free_mem+0x252/0xaa0 [ 38.064012] ? print_irqtrace_events+0x270/0x270 [ 38.068772] ? ___ratelimit+0x30d/0x630 [ 38.072742] ? lock_downgrade+0x980/0x980 [ 38.076893] ? lock_release+0xa40/0xa40 [ 38.080868] ? mark_held_locks+0xaf/0x100 [ 38.085015] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 38.090106] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 38.095111] ? trace_hardirqs_on+0xd/0x10 [ 38.099255] ? ___ratelimit+0x95/0x630 [ 38.103141] ? idr_get_free_cmn+0xfd0/0xfd0 [ 38.107454] ? check_noncircular+0x20/0x20 [ 38.111677] ? find_held_lock+0x138/0x1d0 [ 38.115828] oom_kill_process+0x8b5/0x14a0 [ 38.120058] ? has_ns_capability_noaudit+0x163/0x2a0 [ 38.125157] ? lock_downgrade+0x980/0x980 [ 38.129304] ? oom_evaluate_task+0x480/0x480 [ 38.133720] ? security_capable_noaudit+0x8b/0xc0 [ 38.138592] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 38.143688] ? has_capability+0x30/0x30 [ 38.147655] ? do_raw_spin_trylock+0x190/0x190 [ 38.152232] ? check_noncircular+0x20/0x20 [ 38.156467] ? has_capability_noaudit+0x24/0x30 [ 38.161122] ? oom_badness+0xd1/0x980 [ 38.164898] ? lock_release+0xa40/0xa40 [ 38.168850] ? do_try_to_free_pages+0xc53/0x1020 [ 38.173586] ? find_lock_task_mm+0x460/0x460 [ 38.177979] ? find_held_lock+0x35/0x1d0 [ 38.182039] ? out_of_memory+0xb3a/0x1220 [ 38.186179] ? lock_downgrade+0x980/0x980 [ 38.190322] ? lock_release+0xa40/0xa40 [ 38.194279] ? lock_acquire+0x1d5/0x580 [ 38.198240] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 38.203172] ? oom_evaluate_task+0x284/0x480 [ 38.207577] out_of_memory+0x86d/0x1220 [ 38.211556] ? oom_killer_disable+0x310/0x310 [ 38.216035] ? mutex_trylock+0x23a/0x2d0 [ 38.220086] ? __lock_is_held+0xb6/0x140 [ 38.224138] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 38.229596] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 38.234478] ? warn_alloc+0x2b0/0x2b0 [ 38.238274] ? lock_release+0xa40/0xa40 [ 38.242245] ? print_irqtrace_events+0x270/0x270 [ 38.247005] ? find_held_lock+0x35/0x1d0 [ 38.251070] ? __mutex_lock+0x5bd/0x1a80 [ 38.255130] ? __lock_acquire+0x664/0x3e00 [ 38.259355] ? lock_release+0xa40/0xa40 [ 38.263318] ? memset+0x31/0x40 [ 38.266591] ? do_raw_spin_trylock+0x190/0x190 [ 38.271174] ? __lock_is_held+0xb6/0x140 [ 38.275244] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 38.281118] ? find_held_lock+0x35/0x1d0 [ 38.285183] ? __might_sleep+0x95/0x190 [ 38.289145] __alloc_pages_nodemask+0x9fb/0xd80 [ 38.293811] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 38.298816] ? pcpu_chunk_refresh_hint+0x425/0x570 [ 38.303740] ? print_irqtrace_events+0x270/0x270 [ 38.308502] ? __lock_is_held+0xb6/0x140 [ 38.312566] ? find_next_bit+0x27/0x30 [ 38.316442] pcpu_populate_chunk+0x1b3/0x880 [ 38.320853] pcpu_alloc+0x978/0x10e0 [ 38.324581] ? pcpu_free_area+0xa00/0xa00 [ 38.328720] ? vmap_page_range_noflush+0x523/0x720 [ 38.333661] ? retint_kernel+0x10/0x10 [ 38.337544] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 38.342558] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 38.347318] ? retint_kernel+0x10/0x10 [ 38.351219] __alloc_percpu_gfp+0x27/0x30 [ 38.355366] array_map_alloc+0x778/0xa00 [ 38.359431] SyS_bpf+0x7f8/0x4400 [ 38.362875] ? check_noncircular+0x20/0x20 [ 38.367108] ? bpf_prog_get+0x20/0x20 [ 38.370896] ? perf_event_fork+0x30/0x30 [ 38.374950] ? __lock_is_held+0xb6/0x140 [ 38.378988] ? check_noncircular+0x20/0x20 [ 38.383217] ? __handle_mm_fault+0x80e/0x3ce0 [ 38.387710] ? check_noncircular+0x20/0x20 [ 38.391936] ? __pmd_alloc+0x4e0/0x4e0 [ 38.395802] ? vma_link+0xe9/0x170 [ 38.399335] ? find_held_lock+0x35/0x1d0 [ 38.403397] ? handle_mm_fault+0x248/0x8d0 [ 38.407625] ? find_held_lock+0x35/0x1d0 [ 38.411688] ? __do_page_fault+0x5f7/0xc90 [ 38.415915] ? lock_downgrade+0x980/0x980 [ 38.420065] ? handle_mm_fault+0x410/0x8d0 [ 38.424284] ? down_read_trylock+0xdb/0x170 [ 38.428593] ? __do_page_fault+0x32d/0xc90 [ 38.432821] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 38.437390] ? vmacache_find+0x5f/0x280 [ 38.441358] ? vmacache_update+0xfe/0x130 [ 38.445504] ? up_read+0x1a/0x40 [ 38.448856] ? __do_page_fault+0x3d6/0xc90 [ 38.453087] ? mm_fault_error+0x2c0/0x2c0 [ 38.457238] ? do_page_fault+0xee/0x720 [ 38.461201] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 38.466729] ? __do_page_fault+0xc90/0xc90 [ 38.470955] ? SyS_mmap_pgoff+0x243/0x5f0 [ 38.475103] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 38.479882] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 38.484625] RIP: 0033:0x440139 [ 38.487800] RSP: 002b:00007ffddceb8b48 EFLAGS: 00000217 ORIG_RAX: 0000000000000141 [ 38.495498] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 0000000000440139 [ 38.502756] RDX: 000000000000002c RSI: 0000000020c47fec RDI: 0000000000000000 [ 38.510009] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 38.517268] R10: 00000000ffffffff R11: 0000000000000217 R12: 00000000004016a0 [ 38.524520] R13: 0000000000401730 R14: 0000000000000000 R15: 0000000000000000 [ 38.531845] Mem-Info: [ 38.534670] active_anon:5082 inactive_anon:63 isolated_anon:0 [ 38.534670] active_file:11 inactive_file:14 isolated_file:0 [ 38.534670] unevictable:0 dirty:0 writeback:0 unstable:0 [ 38.534670] slab_reclaimable:7250 slab_unreclaimable:83029 [ 38.534670] mapped:2 shmem:70 pagetables:300 bounce:0 [ 38.534670] free:23791 free_pcp:6 free_cma:0 [ 38.566627] Node 0 active_anon:20328kB inactive_anon:252kB active_file:44kB inactive_file:56kB 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 [ 38.593536] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 38.619682] lowmem_reserve[]: 0 2870 6381 6381 [ 38.624320] Node 0 DMA32 free:43744kB 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:2942340kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 38.651579] lowmem_reserve[]: 0 0 3510 3510 [ 38.655940] Node 0 Normal free:35512kB min:37084kB low:46352kB high:55620kB active_anon:20300kB inactive_anon:248kB active_file:40kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3072kB pagetables:1200kB bounce:0kB free_pcp:24kB local_pcp:24kB free_cma:0kB [ 38.685072] lowmem_reserve[]: 0 0 0 0 [ 38.688910] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 38.702577] Node 0 DMA32: 6*4kB (UM) 5*8kB (UM) 6*16kB (UM) 2*32kB (UM) 4*64kB (UM) 4*128kB (M) 5*256kB (UM) 3*512kB (M) 3*1024kB (UM) 2*2048kB (M) 8*4096kB (M) = 43744kB [ 38.718065] Node 0 Normal: 444*4kB (UME) 327*8kB (UME) 235*16kB (UME) 161*32kB (UME) 95*64kB (UM) 22*128kB (M) 26*256kB (M) 9*512kB (UM) 0*1024kB 1*2048kB (M) 0*4096kB = 35512kB [ 38.734097] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 38.742692] 98 total pagecache pages [ 38.746414] 0 pages in swap cache [ 38.749873] Swap cache stats: add 0, delete 0, find 0/0 [ 38.755292] Free swap = 0kB [ 38.758323] Total swap = 0kB [ 38.761337] 1965979 pages RAM [ 38.764440] 0 pages HighMem/MovableOnly [ 38.768424] 327760 pages reserved [ 38.771881] Unreclaimable slab info: [ 38.775603] Name Used Total [ 38.781154] hashtab_node 118KB 119KB [ 38.786514] ebitmap_node 382KB 385KB [ 38.791886] avtab_node 1012KB 1013KB [ 38.797266] TIPC 1KB 7KB [ 38.803080] SCTPv6 2KB 4KB [ 38.808447] DCCPv6 2KB 7KB [ 38.813833] DCCP 2KB 6KB [ 38.819998] fib6_nodes 0KB 4KB [ 38.825413] ip6_dst_cache 6KB 7KB [ 38.830786] RAWv6 9KB 19KB [ 38.836163] UDPv6 12KB 14KB [ 38.841527] TCPv6 2KB 5KB [ 38.846915] sd_ext_cdb 0KB 3KB [ 38.852297] scsi_sense_cache 91KB 148KB [ 38.857680] virtio_scsi_cmd 16KB 16KB [ 38.863063] sgpool-128 8KB 8KB [ 38.868444] sgpool-64 4KB 6KB [ 38.873826] sgpool-32 78KB 78KB [ 38.879216] sgpool-16 20KB 22KB [ 38.884597] sgpool-8 176KB 176KB [ 38.889985] cfq_io_cq 16KB 19KB [ 38.895366] cfq_queue 25KB 27KB [ 38.900750] mqueue_inode_cache 1KB 7KB [ 38.906220] nfs_commit_data 3KB 7KB [ 38.911603] nfs_write_data 34KB 37KB [ 38.916984] jbd2_inode 1KB 3KB [ 38.922372] ext4_system_zone 0KB 3KB [ 38.927763] bio-1 1KB 3KB [ 38.933151] rpc_buffers 17KB 19KB [ 38.938567] rpc_tasks 2KB 3KB [ 38.943974] UNIX 777KB 780KB [ 38.949358] tcp_bind_bucket 0KB 4KB [ 38.955571] ip_fib_trie 0KB 3KB [ 38.960967] ip_fib_alias 0KB 3KB [ 38.966347] ip_dst_cache 4KB 7KB [ 38.971727] RAW 5KB 7KB [ 38.977103] UDP 29KB 39KB [ 38.982485] TCP 7KB 15KB [ 38.987863] hugetlbfs_inode_cache 1KB 7KB [ 38.993594] eventpoll_pwq 9KB 11KB [ 38.998957] eventpoll_epi 17KB 23KB [ 39.004332] inotify_inode_mark 3KB 11KB [ 39.009831] request_queue 42KB 113KB [ 39.015956] blkdev_ioc 22KB 23KB [ 39.022119] bio-0 285KB 285KB [ 39.028212] biovec-(1<<(21-12)) 470KB 470KB [ 39.033778] biovec-64 110KB 110KB [ 39.039161] biovec-16 11KB 18KB [ 39.044538] bio_integrity_payload 0KB 4KB [ 39.050263] khugepaged_mm_slot 0KB 3KB [ 39.055718] uid_cache 0KB 3KB [ 39.061094] dmaengine-unmap-2 0KB 3KB [ 39.066475] audit_buffer 0KB 3KB [ 39.071856] skbuff_fclone_cache 138KB 142KB [ 39.077433] skbuff_head_cache 1790KB 1792KB [ 39.083954] configfs_dir_cache 0KB 4KB [ 39.090241] file_lock_cache 160KB 166KB [ 39.095628] file_lock_ctx 1KB 3KB [ 39.100996] fsnotify_mark_connector 2KB 3KB [ 39.106900] shmem_inode_cache 1046KB 1046KB [ 39.112287] task_delay_info 321KB 336KB [ 39.117670] sigqueue 367KB 370KB [ 39.123044] kernfs_node_cache 2285KB 2287KB [ 39.128420] mnt_cache 15KB 16KB [ 39.133805] filp 8364KB 8846KB [ 39.139183] names_cache 110780KB 110818KB [ 39.144576] avc_node 37KB 39KB [ 39.150044] selinux_file_security 423KB 488KB [ 39.155757] selinux_inode_security 1946KB 1948KB [ 39.161570] key_jar 3KB 7KB [ 39.166953] nsproxy 0KB 3KB [ 39.172336] vm_area_struct 18795KB 18817KB [ 39.177719] mm_struct 4557KB 4570KB [ 39.183085] fs_cache 428KB 432KB [ 39.188460] files_cache 1605KB 1612KB [ 39.193847] signal_cache 2560KB 2565KB [ 39.199216] sighand_cache 228KB 346KB [ 39.204590] task_struct 10927KB 10933KB [ 39.209982] cred_jar 2370KB 2376KB [ 39.215366] anon_vma_chain 7889KB 7898KB [ 39.220743] anon_vma 159KB 377KB [ 39.226573] pid 224KB 248KB [ 39.231958] Acpi-Operand 106KB 170KB [ 39.237330] Acpi-State 0KB 3KB [ 39.242705] Acpi-Namespace 19KB 23KB [ 39.248092] numa_policy 0KB 3KB [ 39.253476] debug_objects_cache 531KB 531KB [ 39.259049] trace_event_file 144KB 147KB [ 39.264433] ftrace_event_field 254KB 255KB [ 39.269887] pool_workqueue 24KB 28KB [ 39.275264] page->ptl 3132KB 3142KB [ 39.280642] kmalloc-262144 1032KB 1032KB [ 39.286033] kmalloc-131072 650KB 650KB [ 39.291416] kmalloc-65536 264KB 264KB [ 39.296784] kmalloc-32768 825KB 825KB [ 39.302165] kmalloc-16384 181KB 181KB [ 39.307563] kmalloc-8192 470KB 470KB [ 39.312947] kmalloc-4096 6613KB 6651KB [ 39.318328] kmalloc-2048 3244KB 3244KB [ 39.323706] kmalloc-1024 3669KB 3669KB [ 39.329261] kmalloc-512 2782KB 2786KB [ 39.334644] kmalloc-256 1934KB 2415KB [ 39.340051] kmalloc-128 410KB 531KB [ 39.345439] kmalloc-96 2056KB 2056KB [ 39.350810] kmalloc-64 2464KB 2464KB [ 39.356187] kmalloc-32 2398KB 2405KB [ 39.362136] kmalloc-192 907KB 908KB [ 39.367512] kmem_cache 101KB 105KB [ 39.372884] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 39.381513] [ 1813] 0 1813 5411 193 86016 0 -1000 udevd [ 39.389676] [ 3507] 0 3507 14298 173 114688 0 0 rsyslogd [ 39.398104] [ 3562] 0 3562 4725 50 86016 0 0 cron [ 39.406203] [ 3581] 0 3581 3736 44 69632 0 0 mcstransd [ 39.414725] [ 3609] 0 3609 12490 152 131072 0 -1000 sshd [ 39.422827] [ 3633] 0 3633 3694 41 77824 0 0 getty [ 39.430998] [ 3634] 0 3634 3694 41 77824 0 0 getty [ 39.439803] [ 3635] 0 3635 3694 41 77824 0 0 getty [ 39.447972] [ 3636] 0 3636 3694 40 73728 0 0 getty [ 39.456148] [ 3637] 0 3637 3694 42 73728 0 0 getty [ 39.464305] [ 3638] 0 3638 3694 39 73728 0 0 getty [ 39.472475] [ 3639] 0 3639 3649 40 73728 0 0 getty [ 39.480649] [ 3642] 0 3642 5674 454 86016 0 -1000 udevd [ 39.488828] [ 3643] 0 3643 5674 454 86016 0 -1000 udevd [ 39.497039] [ 3660] 0 3660 17821 198 180224 0 0 sshd [ 39.505115] [ 3662] 0 3662 280 1 32768 0 0 syzkaller422145 [ 39.514319] [ 3663] 0 3663 4375 0 32768 0 0 syzkaller422145 [ 39.523381] [ 3664] 0 3664 4375 0 32768 0 0 syzkaller422145 [ 39.533063] [ 3665] 0 3665 4375 523 36864 0 0 syzkaller422145 [ 39.542102] [ 3666] 0 3666 4375 523 36864 0 0 syzkaller422145 [ 39.551145] [ 3667] 0 3667 4375 523 36864 0 0 syzkaller422145 [ 39.560184] [ 3668] 0 3668 4375 523 36864 0 0 syzkaller422145 [ 39.569225] [ 3669] 0 3669 4375 523 36864 0 0 syzkaller422145 [ 39.578266] [ 3670] 0 3670 4375 523 36864 0 0 syzkaller422145 [ 39.587302] Out of memory: Kill process 3665 (syzkaller422145) score 0 or sacrifice child [ 39.596537] Killed process 3665 (syzkaller422145) total-vm:17500kB, anon-rss:2092kB, file-rss:0kB, shmem-rss:0kB [ 39.608161] oom_reaper: reaped process 3665 (syzkaller422145), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 39.625318] rsyslogd invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=0 [ 39.637060] rsyslogd cpuset=/ mems_allowed=0 [ 39.641699] CPU: 0 PID: 3511 Comm: rsyslogd Not tainted 4.15.0-rc8+ #263 [ 39.648525] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.657866] Call Trace: [ 39.660448] dump_stack+0x194/0x257 [ 39.664069] ? arch_local_irq_restore+0x53/0x53 [ 39.668729] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 39.673921] dump_header+0x28c/0xe1e [ 39.677632] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 39.682813] ? pagefault_out_of_memory+0x152/0x152 [ 39.687728] ? check_noncircular+0x20/0x20 [ 39.691955] ? print_irqtrace_events+0x270/0x270 [ 39.698008] ? __lock_acquire+0x664/0x3e00 [ 39.702239] ? check_noncircular+0x20/0x20 [ 39.706480] ? find_held_lock+0x35/0x1d0 [ 39.710553] ? check_noncircular+0x20/0x20 [ 39.714772] ? task_will_free_mem+0x252/0xaa0 [ 39.719354] ? print_irqtrace_events+0x270/0x270 [ 39.724110] ? ___ratelimit+0x30d/0x630 [ 39.728072] ? lock_downgrade+0x980/0x980 [ 39.732212] ? lock_release+0xa40/0xa40 [ 39.736182] ? mark_held_locks+0xaf/0x100 [ 39.740322] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 39.745415] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 39.750417] ? trace_hardirqs_on+0xd/0x10 [ 39.754565] ? ___ratelimit+0x95/0x630 [ 39.758441] ? idr_get_free_cmn+0xfd0/0xfd0 [ 39.762754] ? check_noncircular+0x20/0x20 [ 39.766972] ? find_held_lock+0x138/0x1d0 [ 39.771121] oom_kill_process+0x8b5/0x14a0 [ 39.775350] ? has_ns_capability_noaudit+0x163/0x2a0 [ 39.780441] ? lock_downgrade+0x980/0x980 [ 39.784585] ? oom_evaluate_task+0x480/0x480 [ 39.788998] ? security_capable_noaudit+0x8b/0xc0 [ 39.793832] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 39.798923] ? has_capability+0x30/0x30 [ 39.802880] ? do_raw_spin_trylock+0x190/0x190 [ 39.807449] ? check_noncircular+0x20/0x20 [ 39.811682] ? has_capability_noaudit+0x24/0x30 [ 39.816341] ? oom_badness+0xd1/0x980 [ 39.820147] ? lock_release+0xa40/0xa40 [ 39.824107] ? do_try_to_free_pages+0xc53/0x1020 [ 39.828855] ? find_lock_task_mm+0x460/0x460 [ 39.833264] ? find_held_lock+0x35/0x1d0 [ 39.837322] ? out_of_memory+0xb3a/0x1220 [ 39.841460] ? lock_downgrade+0x980/0x980 [ 39.845611] ? lock_release+0xa40/0xa40 [ 39.849567] ? lock_acquire+0x1d5/0x580 [ 39.853526] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 39.858454] ? oom_evaluate_task+0x284/0x480 [ 39.862859] out_of_memory+0x86d/0x1220 [ 39.866835] ? oom_killer_disable+0x310/0x310 [ 39.871313] ? mutex_trylock+0x23a/0x2d0 [ 39.875363] ? __lock_is_held+0xb6/0x140 [ 39.879412] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 39.884870] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 39.889716] ? trace_hardirqs_on+0xd/0x10 [ 39.893881] ? warn_alloc+0x2b0/0x2b0 [ 39.897670] ? lock_downgrade+0x980/0x980 [ 39.901820] ? radix_tree_lookup_slot+0x99/0xe0 [ 39.906503] ? find_get_entry+0x53c/0x9e0 [ 39.910678] ? __lock_acquire+0x664/0x3e00 [ 39.914952] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 39.920839] ? __might_sleep+0x95/0x190 [ 39.924810] __alloc_pages_nodemask+0x9fb/0xd80 [ 39.929477] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 39.934486] ? add_to_page_cache_lru+0x510/0x510 [ 39.939247] ? check_noncircular+0x20/0x20 [ 39.943466] ? check_noncircular+0x20/0x20 [ 39.947687] ? __schedule+0x8f3/0x2060 [ 39.951573] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 39.956350] alloc_pages_current+0xb6/0x1e0 [ 39.960675] __page_cache_alloc+0x334/0x500 [ 39.964986] ? rcu_read_lock_held+0xa9/0xc0 [ 39.969305] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 39.976676] filemap_fault+0xefc/0x1c20 [ 39.980642] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 39.985836] ? __lock_page_or_retry+0x4f0/0x4f0 [ 39.990507] ? filemap_map_pages+0x942/0x15d0 [ 39.995014] ? find_get_entries_tag+0xeb0/0xeb0 [ 39.999677] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 40.005119] ? check_noncircular+0x20/0x20 [ 40.009349] ? print_irqtrace_events+0x270/0x270 [ 40.014089] ? print_irqtrace_events+0x270/0x270 [ 40.018831] ? print_irqtrace_events+0x270/0x270 [ 40.023603] ? lock_acquire+0x1d5/0x580 [ 40.027560] ? lock_acquire+0x1d5/0x580 [ 40.031519] ? ext4_filemap_fault+0x7a/0xad [ 40.035828] ? __lock_acquire+0x664/0x3e00 [ 40.040052] ? lock_release+0xa40/0xa40 [ 40.044017] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 40.049897] ? rcu_note_context_switch+0x710/0x710 [ 40.054826] ? __might_sleep+0x95/0x190 [ 40.058792] ? down_read+0x96/0x150 [ 40.062402] ? ext4_filemap_fault+0x7a/0xad [ 40.066811] ? __down_interruptible+0x6b0/0x6b0 [ 40.071485] ext4_filemap_fault+0x82/0xad [ 40.075622] __do_fault+0xeb/0x30f [ 40.079144] ? switch_mm_irqs_off+0x7cb/0x15f0 [ 40.083713] ? pte_offset_kernel+0xc7/0xc7 [ 40.087931] ? lock_release+0xa40/0xa40 [ 40.091887] ? compat_start_thread+0x80/0x80 [ 40.096285] ? do_raw_spin_trylock+0x190/0x190 [ 40.100863] ? _raw_spin_unlock_irq+0x27/0x70 [ 40.105346] ? check_noncircular+0x20/0x20 [ 40.109579] __handle_mm_fault+0x1d8f/0x3ce0 [ 40.113980] ? __pmd_alloc+0x4e0/0x4e0 [ 40.117870] ? find_held_lock+0x35/0x1d0 [ 40.121950] ? handle_mm_fault+0x248/0x8d0 [ 40.126172] ? lock_downgrade+0x980/0x980 [ 40.130350] handle_mm_fault+0x334/0x8d0 [ 40.134398] ? down_read_trylock+0xdb/0x170 [ 40.138704] ? __do_page_fault+0x32d/0xc90 [ 40.142928] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 40.147493] ? vmacache_find+0x5f/0x280 [ 40.151462] ? find_vma+0x30/0x150 [ 40.154996] __do_page_fault+0x5c9/0xc90 [ 40.159039] ? vfs_copy_file_range+0x940/0x940 [ 40.163621] ? mm_fault_error+0x2c0/0x2c0 [ 40.167757] ? avc_policy_seqno+0x9/0x20 [ 40.171809] ? exit_to_usermode_loop+0x8c/0x310 [ 40.176469] do_page_fault+0xee/0x720 [ 40.180256] ? trace_hardirqs_off+0xd/0x10 [ 40.184475] ? __do_page_fault+0xc90/0xc90 [ 40.188699] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 40.194231] ? fput+0xd2/0x140 [ 40.197417] ? retint_user+0x18/0x18 [ 40.201118] ? page_fault+0x36/0x60 [ 40.204732] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 40.209568] ? page_fault+0x36/0x60 [ 40.213184] page_fault+0x4c/0x60 [ 40.216631] RIP: 0033:0x40b550 [ 40.219803] RSP: 002b:00007f40979e0d68 EFLAGS: 00010202 [ 40.225150] RAX: 0000000000000000 RBX: 00007f40979e0d88 RCX: 0000000000000004 [ 40.232404] RDX: 0000000000000000 RSI: 00007f409901350c RDI: 0000000000000210 [ 40.239657] RBP: 0000000000000004 R08: 000000000000003e R09: 00007f4099dd5100 [ 40.246912] R10: 3d7373616c637420 R11: 0000000000000000 R12: 0000000000000000 [ 40.254166] R13: 00007f40992165a3 R14: 0000000000000091 R15: 00007f409921562e [ 40.261573] Mem-Info: [ 40.265089] active_anon:4569 inactive_anon:63 isolated_anon:0 [ 40.265089] active_file:28 inactive_file:10 isolated_file:15 [ 40.265089] unevictable:0 dirty:0 writeback:0 unstable:0 [ 40.265089] slab_reclaimable:7250 slab_unreclaimable:83029 [ 40.265089] mapped:2 shmem:70 pagetables:299 bounce:0 [ 40.265089] free:24179 free_pcp:39 free_cma:0 [ 40.297581] Node 0 active_anon:18256kB inactive_anon:252kB active_file:48kB inactive_file:88kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 10240kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 40.324581] 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 [ 40.350828] lowmem_reserve[]: 0 2870 6381 6381 [ 40.355470] Node 0 DMA32 free:43744kB 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:2942340kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 40.382763] lowmem_reserve[]: 0 0 3510 3510 [ 40.387126] Node 0 Normal free:37040kB min:37084kB low:46352kB high:55620kB active_anon:18228kB inactive_anon:248kB active_file:48kB inactive_file:60kB unevictable:0kB writepending:0kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3072kB pagetables:1192kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 40.415619] lowmem_reserve[]: 0 0 0 0 [ 40.419465] 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 [ 40.433143] Node 0 DMA32: 6*4kB (UM) 5*8kB (UM) 6*16kB (UM) 2*32kB (UM) 4*64kB (UM) 4*128kB (M) 5*256kB (UM) 3*512kB (M) 3*1024kB (UM) 2*2048kB (M) 8*4096kB (M) = 43744kB [ 40.448639] Node 0 Normal: 440*4kB (UME) 320*8kB (UME) 236*16kB (UME) 160*32kB (ME) 94*64kB (M) 23*128kB (UM) 27*256kB (UM) 8*512kB (UM) 0*1024kB 2*2048kB (M) 0*4096kB = 37280kB [ 40.464734] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 40.473325] 99 total pagecache pages [ 40.477064] 0 pages in swap cache [ 40.480539] Swap cache stats: add 0, delete 0, find 0/0 [ 40.485911] Free swap = 0kB [ 40.488942] Total swap = 0kB [ 40.491969] 1965979 pages RAM [ 40.495084] 0 pages HighMem/MovableOnly [ 40.499064] 327760 pages reserved [ 40.502599] Unreclaimable slab info: [ 40.506407] Name Used Total [ 40.512006] hashtab_node 118KB 119KB [ 40.517405] ebitmap_node 382KB 385KB [ 40.522780] avtab_node 1012KB 1013KB [ 40.528161] TIPC 1KB 7KB [ 40.533547] SCTPv6 2KB 4KB [ 40.538930] DCCPv6 2KB 7KB [ 40.544309] DCCP 2KB 6KB [ 40.549712] fib6_nodes 0KB 4KB [ 40.555092] ip6_dst_cache 6KB 7KB [ 40.560473] RAWv6 9KB 19KB [ 40.565855] UDPv6 12KB 14KB [ 40.571237] TCPv6 2KB 5KB [ 40.576634] sd_ext_cdb 0KB 3KB [ 40.582039] scsi_sense_cache 88KB 148KB [ 40.587417] virtio_scsi_cmd 16KB 16KB [ 40.592814] sgpool-128 8KB 8KB [ 40.598202] sgpool-64 4KB 6KB [ 40.603587] sgpool-32 70KB 78KB [ 40.608967] sgpool-16 20KB 22KB [ 40.614344] sgpool-8 175KB 176KB [ 40.619724] cfq_io_cq 15KB 19KB [ 40.625104] cfq_queue 25KB 27KB [ 40.630481] mqueue_inode_cache 1KB 7KB [ 40.635954] nfs_commit_data 3KB 7KB [ 40.641341] nfs_write_data 34KB 37KB [ 40.646733] jbd2_inode 1KB 3KB [ 40.652112] ext4_system_zone 0KB 3KB [ 40.657502] bio-1 1KB 3KB [ 40.662892] rpc_buffers 17KB 19KB [ 40.668269] rpc_tasks 2KB 3KB [ 40.673643] UNIX 777KB 780KB [ 40.679041] tcp_bind_bucket 0KB 4KB [ 40.684425] ip_fib_trie 0KB 3KB [ 40.689823] ip_fib_alias 0KB 3KB [ 40.695206] ip_dst_cache 4KB 7KB [ 40.700940] RAW 5KB 7KB [ 40.706319] UDP 29KB 39KB [ 40.711703] TCP 7KB 15KB [ 40.717082] hugetlbfs_inode_cache 1KB 7KB [ 40.722810] eventpoll_pwq 9KB 11KB [ 40.728192] eventpoll_epi 17KB 23KB [ 40.733569] inotify_inode_mark 3KB 11KB [ 40.739049] request_queue 42KB 113KB [ 40.744423] blkdev_ioc 21KB 23KB [ 40.749803] bio-0 288KB 288KB [ 40.755185] biovec-(1<<(21-12)) 470KB 470KB [ 40.760742] biovec-64 103KB 110KB [ 40.766117] biovec-16 11KB 18KB [ 40.771503] bio_integrity_payload 0KB 4KB [ 40.777230] khugepaged_mm_slot 0KB 3KB [ 40.782703] uid_cache 0KB 3KB [ 40.788082] dmaengine-unmap-2 0KB 3KB [ 40.793464] audit_buffer 0KB 3KB [ 40.798840] skbuff_fclone_cache 138KB 142KB [ 40.804392] skbuff_head_cache 1789KB 1792KB [ 40.809765] configfs_dir_cache 0KB 4KB [ 40.815227] file_lock_cache 160KB 166KB [ 40.820600] file_lock_ctx 1KB 3KB [ 40.825979] fsnotify_mark_connector 2KB 3KB [ 40.831877] shmem_inode_cache 1046KB 1046KB [ 40.837260] task_delay_info 320KB 336KB [ 40.842639] sigqueue 366KB 370KB [ 40.848034] kernfs_node_cache 2285KB 2287KB [ 40.853411] mnt_cache 15KB 16KB [ 40.858787] filp 8354KB 8838KB [ 40.864172] names_cache 110763KB 110801KB [ 40.869555] avc_node 37KB 39KB [ 40.874935] selinux_file_security 422KB 488KB [ 40.880662] selinux_inode_security 1946KB 1948KB [ 40.886476] key_jar 3KB 7KB [ 40.891855] nsproxy 0KB 3KB [ 40.897235] vm_area_struct 18792KB 18813KB [ 40.902632] mm_struct 4556KB 4570KB [ 40.908033] fs_cache 428KB 432KB [ 40.913412] files_cache 1605KB 1612KB [ 40.918789] signal_cache 2560KB 2565KB [ 40.924173] sighand_cache 224KB 346KB [ 40.929552] task_struct 10927KB 10933KB [ 40.934931] cred_jar 2370KB 2376KB [ 40.940309] anon_vma_chain 7886KB 7898KB [ 40.945687] anon_vma 154KB 377KB [ 40.951063] pid 223KB 248KB [ 40.956444] Acpi-Operand 106KB 170KB [ 40.961823] Acpi-State 0KB 3KB [ 40.967225] Acpi-Namespace 19KB 23KB [ 40.972604] numa_policy 0KB 3KB [ 40.977984] debug_objects_cache 531KB 531KB [ 40.983538] trace_event_file 144KB 147KB [ 40.988919] ftrace_event_field 254KB 255KB [ 40.994388] pool_workqueue 24KB 28KB [ 40.999771] page->ptl 3131KB 3142KB [ 41.005180] kmalloc-262144 1032KB 1032KB [ 41.010558] kmalloc-131072 650KB 650KB [ 41.015940] kmalloc-65536 264KB 264KB [ 41.021319] kmalloc-32768 825KB 825KB [ 41.026702] kmalloc-16384 181KB 181KB [ 41.032089] kmalloc-8192 470KB 470KB [ 41.037470] kmalloc-4096 6596KB 6634KB [ 41.042846] kmalloc-2048 3244KB 3244KB [ 41.048224] kmalloc-1024 3669KB 3669KB [ 41.053603] kmalloc-512 2781KB 2786KB [ 41.058987] kmalloc-256 1927KB 2411KB [ 41.064391] kmalloc-128 409KB 531KB [ 41.069771] kmalloc-96 2054KB 2056KB [ 41.075159] kmalloc-64 2460KB 2464KB [ 41.080539] kmalloc-32 2395KB 2405KB [ 41.086060] kmalloc-192 906KB 908KB [ 41.091444] kmem_cache 101KB 105KB [ 41.096820] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 41.105510] [ 1813] 0 1813 5411 193 86016 0 -1000 udevd [ 41.113760] [ 3507] 0 3507 14298 173 114688 0 0 rsyslogd [ 41.122202] [ 3562] 0 3562 4725 50 86016 0 0 cron [ 41.130281] [ 3581] 0 3581 3736 44 69632 0 0 mcstransd [ 41.138800] [ 3609] 0 3609 12490 152 131072 0 -1000 sshd [ 41.146884] [ 3633] 0 3633 3694 41 77824 0 0 getty [ 41.155058] [ 3634] 0 3634 3694 41 77824 0 0 getty [ 41.163247] [ 3635] 0 3635 3694 41 77824 0 0 getty [ 41.171416] [ 3636] 0 3636 3694 40 73728 0 0 getty [ 41.179590] [ 3637] 0 3637 3694 42 73728 0 0 getty [ 41.187764] [ 3638] 0 3638 3694 39 73728 0 0 getty [ 41.195957] [ 3639] 0 3639 3649 40 73728 0 0 getty [ 41.204225] [ 3642] 0 3642 5674 454 86016 0 -1000 udevd [ 41.212401] [ 3643] 0 3643 5674 454 86016 0 -1000 udevd [ 41.220572] [ 3660] 0 3660 17821 198 180224 0 0 sshd [ 41.228711] [ 3662] 0 3662 280 1 32768 0 0 syzkaller422145 [ 41.237752] [ 3663] 0 3663 4375 0 32768 0 0 syzkaller422145 [ 41.246794] [ 3664] 0 3664 4375 0 32768 0 0 syzkaller422145 [ 41.255854] [ 3665] 0 3665 4375 0 32768 0 0 syzkaller422145 [ 41.264893] [ 3666] 0 3666 4375 523 36864 0 0 syzkaller422145 [ 41.273932] [ 3667] 0 3667 4375 523 36864 0 0 syzkaller422145 [ 41.282974] [ 3668] 0 3668 4375 523 36864 0 0 syzkaller422145 [ 41.292065] [ 3669] 0 3669 4375 523 36864 0 0 syzkaller422145 [ 41.301107] [ 3670] 0 3670 4375 523 36864 0 0 syzkaller422145 [ 41.310158] Out of memory: Kill process 3666 (syzkaller422145) score 0 or sacrifice child [ 41.318763] Killed process 3666 (syzkaller422145) total-vm:17500kB, anon-rss:2092kB, file-rss:0kB, shmem-rss:0kB [ 41.332041] oom_reaper: reaped process 3666 (syzkaller422145), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 41.440820] udevd invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=-1000 [ 41.452384] udevd cpuset=/ mems_allowed=0 [ 41.456564] CPU: 0 PID: 1813 Comm: udevd Not tainted 4.15.0-rc8+ #263 [ 41.463133] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.472477] Call Trace: [ 41.475064] dump_stack+0x194/0x257 [ 41.478684] ? arch_local_irq_restore+0x53/0x53 [ 41.483344] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 41.488528] dump_header+0x28c/0xe1e [ 41.492243] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 41.497432] ? pagefault_out_of_memory+0x152/0x152 [ 41.502354] ? check_noncircular+0x20/0x20 [ 41.506576] ? print_irqtrace_events+0x270/0x270 [ 41.511326] ? __lock_acquire+0x664/0x3e00 [ 41.515560] ? check_noncircular+0x20/0x20 [ 41.519798] ? find_held_lock+0x35/0x1d0 [ 41.523864] ? check_noncircular+0x20/0x20 [ 41.528095] ? task_will_free_mem+0x252/0xaa0 [ 41.532604] ? print_irqtrace_events+0x270/0x270 [ 41.537358] ? ___ratelimit+0x30d/0x630 [ 41.541326] ? lock_downgrade+0x980/0x980 [ 41.545470] ? lock_release+0xa40/0xa40 [ 41.549441] ? mark_held_locks+0xaf/0x100 [ 41.553583] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 41.558673] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 41.563704] ? trace_hardirqs_on+0xd/0x10 [ 41.567850] ? ___ratelimit+0x95/0x630 [ 41.571732] ? idr_get_free_cmn+0xfd0/0xfd0 [ 41.576045] ? check_noncircular+0x20/0x20 [ 41.580272] ? find_held_lock+0x138/0x1d0 [ 41.584420] oom_kill_process+0x8b5/0x14a0 [ 41.588640] ? has_ns_capability_noaudit+0x163/0x2a0 [ 41.593733] ? lock_downgrade+0x980/0x980 [ 41.597882] ? oom_evaluate_task+0x480/0x480 [ 41.602301] ? security_capable_noaudit+0x8b/0xc0 [ 41.607159] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 41.612257] ? has_capability+0x30/0x30 [ 41.616222] ? do_raw_spin_trylock+0x190/0x190 [ 41.620792] ? check_noncircular+0x20/0x20 [ 41.625019] ? has_capability_noaudit+0x24/0x30 [ 41.629684] ? oom_badness+0xd1/0x980 [ 41.633476] ? lock_release+0xa40/0xa40 [ 41.637442] ? do_try_to_free_pages+0xc53/0x1020 [ 41.642198] ? find_lock_task_mm+0x460/0x460 [ 41.646601] ? find_held_lock+0x35/0x1d0 [ 41.650650] ? out_of_memory+0xb3a/0x1220 [ 41.654777] ? lock_downgrade+0x980/0x980 [ 41.658920] ? lock_release+0xa40/0xa40 [ 41.662883] ? lock_acquire+0x1d5/0x580 [ 41.666845] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 41.671771] ? oom_evaluate_task+0x284/0x480 [ 41.676182] out_of_memory+0x86d/0x1220 [ 41.680320] ? trace_hardirqs_on+0xd/0x10 [ 41.684469] ? oom_killer_disable+0x310/0x310 [ 41.688939] ? mutex_trylock+0x23a/0x2d0 [ 41.693726] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 41.699168] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 41.705084] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 41.709967] ? trace_hardirqs_on+0xd/0x10 [ 41.714138] ? warn_alloc+0x2b0/0x2b0 [ 41.717933] ? lock_downgrade+0x980/0x980 [ 41.722091] ? radix_tree_lookup_slot+0x99/0xe0 [ 41.726756] ? find_get_entry+0x53c/0x9e0 [ 41.730903] ? __lock_acquire+0x664/0x3e00 [ 41.735194] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 41.741094] ? __might_sleep+0x95/0x190 [ 41.745066] __alloc_pages_nodemask+0x9fb/0xd80 [ 41.749744] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 41.754750] ? add_to_page_cache_lru+0x510/0x510 [ 41.759505] ? check_noncircular+0x20/0x20 [ 41.763728] ? check_noncircular+0x20/0x20 [ 41.767972] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 41.772748] alloc_pages_current+0xb6/0x1e0 [ 41.777067] __page_cache_alloc+0x334/0x500 [ 41.781374] ? rcu_read_lock_held+0xa9/0xc0 [ 41.785681] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 41.793040] filemap_fault+0xefc/0x1c20 [ 41.796996] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 41.802167] ? __lock_page_or_retry+0x4f0/0x4f0 [ 41.806812] ? filemap_map_pages+0x942/0x15d0 [ 41.811277] ? free_obj_work+0x690/0x690 [ 41.815315] ? find_get_entries_tag+0xeb0/0xeb0 [ 41.819960] ? check_noncircular+0x20/0x20 [ 41.824175] ? print_irqtrace_events+0x270/0x270 [ 41.828899] ? print_irqtrace_events+0x270/0x270 [ 41.833621] ? print_irqtrace_events+0x270/0x270 [ 41.838347] ? do_raw_spin_trylock+0x190/0x190 [ 41.842938] ? lock_acquire+0x1d5/0x580 [ 41.846881] ? lock_acquire+0x1d5/0x580 [ 41.850829] ? ext4_filemap_fault+0x7a/0xad [ 41.855125] ? __lock_acquire+0x664/0x3e00 [ 41.859332] ? lock_release+0xa40/0xa40 [ 41.863277] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 41.869134] ? rcu_note_context_switch+0x710/0x710 [ 41.874045] ? __might_sleep+0x95/0x190 [ 41.877995] ? down_read+0x96/0x150 [ 41.881605] ? ext4_filemap_fault+0x7a/0xad [ 41.885897] ? __down_interruptible+0x6b0/0x6b0 [ 41.890547] ext4_filemap_fault+0x82/0xad [ 41.894668] __do_fault+0xeb/0x30f [ 41.898196] ? pte_offset_kernel+0xc7/0xc7 [ 41.902403] ? do_raw_spin_trylock+0x190/0x190 [ 41.906968] ? check_noncircular+0x20/0x20 [ 41.911178] __handle_mm_fault+0x1d8f/0x3ce0 [ 41.915562] ? __pmd_alloc+0x4e0/0x4e0 [ 41.919434] ? find_held_lock+0x35/0x1d0 [ 41.923471] ? handle_mm_fault+0x248/0x8d0 [ 41.927676] ? lock_downgrade+0x980/0x980 [ 41.931814] handle_mm_fault+0x334/0x8d0 [ 41.935848] ? down_read_trylock+0xdb/0x170 [ 41.940138] ? __do_page_fault+0x32d/0xc90 [ 41.944344] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 41.948897] ? vmacache_find+0x5f/0x280 [ 41.952856] ? find_vma+0x30/0x150 [ 41.956368] __do_page_fault+0x5c9/0xc90 [ 41.960406] ? mm_fault_error+0x2c0/0x2c0 [ 41.964611] ? __fdget+0x18/0x20 [ 41.967958] do_page_fault+0xee/0x720 [ 41.971740] ? __do_page_fault+0xc90/0xc90 [ 41.975955] ? __sb_end_write+0xa0/0xd0 [ 41.979919] ? vfs_write+0x224/0x510 [ 41.983610] ? retint_user+0x18/0x18 [ 41.987295] ? page_fault+0x36/0x60 [ 41.990893] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 41.995708] ? page_fault+0x36/0x60 [ 41.999307] page_fault+0x4c/0x60 [ 42.002731] RIP: 0033:0x7f0f5c3d4cad [ 42.006419] RSP: 002b:00007ffe407695a8 EFLAGS: 00010206 [ 42.011752] RAX: 0000000000000000 RBX: 00007ffe40769650 RCX: 00007f0f5c37c210 [ 42.019002] RDX: 0000000000000008 RSI: 00000000004203c8 RDI: 00007ffe40769678 [ 42.026250] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000001 [ 42.034017] R10: 0000000000000008 R11: 00007f0f5c3f5e90 R12: 00007ffe40769670 [ 42.041261] R13: 00000000000000a2 R14: 0000000000f66a10 R15: 0000000000f5c030 [ 42.048638] Mem-Info: [ 42.060405] active_anon:4047 inactive_anon:63 isolated_anon:0 [ 42.060405] active_file:35 inactive_file:0 isolated_file:0 [ 42.060405] unevictable:0 dirty:0 writeback:0 unstable:0 [ 42.060405] slab_reclaimable:7250 slab_unreclaimable:82983 [ 42.060405] mapped:2 shmem:70 pagetables:297 bounce:0 [ 42.060405] free:24174 free_pcp:5 free_cma:0 [ 42.092403] Node 0 active_anon:16188kB inactive_anon:252kB active_file:88kB inactive_file:44kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 8192kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 42.120098] 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 [ 42.147075] lowmem_reserve[]: 0 2870 6381 6381 [ 42.152268] Node 0 DMA32 free:36056kB min:30332kB low:37912kB high:45492kB active_anon:28kB inactive_anon:4kB active_file:20kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2942340kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:112kB local_pcp:0kB free_cma:0kB [ 42.180501] lowmem_reserve[]: 0 0 3510 3510 [ 42.185481] Node 0 Normal free:18496kB min:37084kB low:46352kB high:55620kB active_anon:16160kB inactive_anon:248kB active_file:0kB inactive_file:120kB unevictable:0kB writepending:0kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3072kB pagetables:1188kB bounce:0kB free_pcp:128kB local_pcp:128kB free_cma:0kB [ 42.215126] lowmem_reserve[]: 0 0 0 0 [ 42.218986] 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 [ 42.232662] Node 0 DMA32: 6*4kB (UM) 4*8kB (UM) 6*16kB (UM) 2*32kB (UM) 4*64kB (UM) 4*128kB (M) 5*256kB (UM) 4*512kB (UM) 3*1024kB (UM) 2*2048kB (M) 6*4096kB (M) = 36056kB [ 42.248232] Node 0 Normal: 279*4kB (ME) 195*8kB (ME) 159*16kB (ME) 101*32kB (UME) 63*64kB (M) 17*128kB (UM) 15*256kB (UM) 0*512kB 0*1024kB 0*2048kB 0*4096kB = 18500kB [ 42.263308] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 42.271913] 99 total pagecache pages [ 42.275648] 0 pages in swap cache [ 42.279115] Swap cache stats: add 0, delete 0, find 0/0 [ 42.284616] Free swap = 0kB [ 42.287630] Total swap = 0kB [ 42.290658] 1965979 pages RAM [ 42.293760] 0 pages HighMem/MovableOnly [ 42.297737] 327760 pages reserved [ 42.301200] Unreclaimable slab info: [ 42.304926] Name Used Total [ 42.310465] hashtab_node 118KB 119KB [ 42.316733] ebitmap_node 382KB 385KB [ 42.322109] avtab_node 1012KB 1013KB [ 42.327490] TIPC 1KB 7KB [ 42.332862] SCTPv6 2KB 4KB [ 42.338245] DCCPv6 2KB 7KB [ 42.343633] DCCP 2KB 6KB [ 42.349043] fib6_nodes 0KB 4KB [ 42.354427] ip6_dst_cache 6KB 7KB [ 42.359796] RAWv6 9KB 19KB [ 42.365176] UDPv6 12KB 14KB [ 42.370571] TCPv6 2KB 5KB [ 42.375961] sd_ext_cdb 0KB 3KB [ 42.381349] scsi_sense_cache 85KB 148KB [ 42.386737] virtio_scsi_cmd 16KB 16KB [ 42.392118] sgpool-128 8KB 8KB [ 42.397495] sgpool-64 4KB 6KB [ 42.402871] sgpool-32 69KB 78KB [ 42.408246] sgpool-16 19KB 22KB [ 42.413634] sgpool-8 175KB 176KB [ 42.419039] cfq_io_cq 15KB 19KB [ 42.424466] cfq_queue 25KB 27KB [ 42.429850] mqueue_inode_cache 1KB 7KB [ 42.435313] nfs_commit_data 3KB 7KB [ 42.440696] nfs_write_data 34KB 37KB [ 42.446076] jbd2_inode 1KB 3KB [ 42.452263] ext4_system_zone 0KB 3KB [ 42.457660] bio-1 1KB 3KB [ 42.463281] rpc_buffers 17KB 19KB [ 42.468750] rpc_tasks 2KB 3KB [ 42.474146] UNIX 777KB 780KB [ 42.479591] tcp_bind_bucket 0KB 4KB [ 42.484971] ip_fib_trie 0KB 3KB [ 42.490349] ip_fib_alias 0KB 3KB [ 42.495823] ip_dst_cache 4KB 7KB [ 42.501204] RAW 5KB 7KB [ 42.506584] UDP 29KB 39KB [ 42.511971] TCP 7KB 15KB [ 42.517348] hugetlbfs_inode_cache 1KB 7KB [ 42.523085] eventpoll_pwq 9KB 11KB [ 42.528464] eventpoll_epi 17KB 23KB [ 42.533844] inotify_inode_mark 3KB 11KB [ 42.539310] request_queue 36KB 90KB [ 42.544700] blkdev_ioc 21KB 23KB [ 42.550075] bio-0 287KB 288KB [ 42.555438] biovec-(1<<(21-12)) 470KB 470KB [ 42.560971] biovec-64 102KB 110KB [ 42.566331] biovec-16 11KB 18KB [ 42.571694] bio_integrity_payload 0KB 4KB [ 42.577402] khugepaged_mm_slot 0KB 3KB [ 42.582873] uid_cache 0KB 3KB [ 42.588665] dmaengine-unmap-2 0KB 3KB [ 42.594066] audit_buffer 0KB 3KB [ 42.599453] skbuff_fclone_cache 138KB 142KB [ 42.604995] skbuff_head_cache 1789KB 1792KB [ 42.610380] configfs_dir_cache 0KB 4KB [ 42.615847] file_lock_cache 160KB 166KB [ 42.621224] file_lock_ctx 1KB 3KB [ 42.626601] fsnotify_mark_connector 2KB 3KB [ 42.632505] shmem_inode_cache 1046KB 1046KB [ 42.637882] task_delay_info 320KB 336KB [ 42.643276] sigqueue 366KB 370KB [ 42.648654] kernfs_node_cache 2285KB 2287KB [ 42.654056] mnt_cache 15KB 16KB [ 42.659478] filp 8324KB 8823KB [ 42.664862] names_cache 110763KB 110793KB [ 42.670240] avc_node 37KB 39KB [ 42.675620] selinux_file_security 418KB 488KB [ 42.681337] selinux_inode_security 1946KB 1948KB [ 42.687150] key_jar 3KB 7KB [ 42.692539] nsproxy 0KB 3KB [ 42.697917] vm_area_struct 18787KB 18810KB [ 42.703293] mm_struct 4556KB 4570KB [ 42.708662] fs_cache 428KB 432KB [ 42.714038] files_cache 1605KB 1612KB [ 42.719850] signal_cache 2560KB 2565KB [ 42.725233] sighand_cache 219KB 339KB [ 42.730604] task_struct 10927KB 10927KB [ 42.735982] cred_jar 2369KB 2376KB [ 42.741368] anon_vma_chain 7886KB 7898KB [ 42.746754] anon_vma 139KB 365KB [ 42.752125] pid 223KB 248KB [ 42.757511] Acpi-Operand 106KB 170KB [ 42.762881] Acpi-Namespace 19KB 23KB [ 42.768260] numa_policy 0KB 3KB [ 42.773651] debug_objects_cache 531KB 531KB [ 42.779198] trace_event_file 144KB 147KB [ 42.784584] ftrace_event_field 254KB 255KB [ 42.790059] pool_workqueue 24KB 28KB [ 42.795447] page->ptl 3131KB 3142KB [ 42.800826] kmalloc-262144 1032KB 1032KB [ 42.806214] kmalloc-131072 650KB 650KB [ 42.811586] kmalloc-65536 264KB 264KB [ 42.816963] kmalloc-32768 825KB 825KB [ 42.822345] kmalloc-16384 181KB 181KB [ 42.827728] kmalloc-8192 470KB 470KB [ 42.833105] kmalloc-4096 6596KB 6625KB [ 42.838483] kmalloc-2048 3244KB 3244KB [ 42.843850] kmalloc-1024 3672KB 3677KB [ 42.849836] kmalloc-512 2786KB 2786KB [ 42.855219] kmalloc-256 1912KB 2392KB [ 42.860602] kmalloc-128 409KB 531KB [ 42.865967] kmalloc-96 2064KB 2064KB [ 42.871345] kmalloc-64 2472KB 2472KB [ 42.876730] kmalloc-32 2394KB 2405KB [ 42.882096] kmalloc-192 912KB 912KB [ 42.887470] kmem_cache 101KB 105KB [ 42.892852] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 42.901467] [ 1813] 0 1813 5411 193 86016 0 -1000 udevd [ 42.909632] [ 3507] 0 3507 14298 173 114688 0 0 rsyslogd [ 42.918057] [ 3562] 0 3562 4725 50 86016 0 0 cron [ 42.926127] [ 3581] 0 3581 3736 44 69632 0 0 mcstransd [ 42.934639] [ 3609] 0 3609 12490 152 131072 0 -1000 sshd [ 42.942727] [ 3633] 0 3633 3694 41 77824 0 0 getty [ 42.950906] [ 3634] 0 3634 3694 41 77824 0 0 getty [ 42.959081] [ 3635] 0 3635 3694 41 77824 0 0 getty [ 42.967241] [ 3636] 0 3636 3694 40 73728 0 0 getty [ 42.975437] [ 3637] 0 3637 3694 42 73728 0 0 getty [ 42.983626] [ 3638] 0 3638 3694 39 73728 0 0 getty [ 42.991796] [ 3639] 0 3639 3649 40 73728 0 0 getty [ 42.999967] [ 3642] 0 3642 5674 454 86016 0 -1000 udevd [ 43.008138] [ 3643] 0 3643 5674 454 86016 0 -1000 udevd [ 43.016295] [ 3660] 0 3660 17821 198 180224 0 0 sshd [ 43.024379] [ 3662] 0 3662 280 1 32768 0 0 syzkaller422145 [ 43.033404] [ 3663] 0 3663 4375 0 32768 0 0 syzkaller422145 [ 43.042433] [ 3664] 0 3664 4375 0 32768 0 0 syzkaller422145 [ 43.051474] [ 3665] 0 3665 4375 0 32768 0 0 syzkaller422145 [ 43.060500] [ 3666] 0 3666 4375 0 32768 0 0 syzkaller422145 [ 43.069557] [ 3667] 0 3667 4375 523 36864 0 0 syzkaller422145 [ 43.078581] [ 3668] 0 3668 4375 523 36864 0 0 syzkaller422145 [ 43.087730] [ 3669] 0 3669 4375 523 36864 0 0 syzkaller422145 [ 43.096777] [ 3670] 0 3670 4375 523 36864 0 0 syzkaller422145 [ 43.105888] Out of memory: Kill process 3667 (syzkaller422145) score 0 or sacrifice child [ 43.115080] Killed process 3667 (syzkaller422145) total-vm:17500kB, anon-rss:2092kB, file-rss:0kB, shmem-rss:0kB [ 43.127682] oom_reaper: reaped process 3667 (syzkaller422145), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 43.138757] init invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=0 [ 43.149793] init cpuset=/ mems_allowed=0 [ 43.153886] CPU: 1 PID: 1 Comm: init Not tainted 4.15.0-rc8+ #263 [ 43.160097] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 43.169421] Call Trace: [ 43.171985] dump_stack+0x194/0x257 [ 43.175594] ? arch_local_irq_restore+0x53/0x53 [ 43.180235] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 43.185402] dump_header+0x28c/0xe1e [ 43.189091] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 43.194254] ? pagefault_out_of_memory+0x152/0x152 [ 43.199154] ? check_noncircular+0x20/0x20 [ 43.203359] ? print_irqtrace_events+0x270/0x270 [ 43.208098] ? __lock_acquire+0x664/0x3e00 [ 43.212306] ? check_noncircular+0x20/0x20 [ 43.216516] ? find_held_lock+0x35/0x1d0 [ 43.220552] ? check_noncircular+0x20/0x20 [ 43.224758] ? task_will_free_mem+0x252/0xaa0 [ 43.229228] ? print_irqtrace_events+0x270/0x270 [ 43.233972] ? ___ratelimit+0x30d/0x630 [ 43.237918] ? lock_downgrade+0x980/0x980 [ 43.242044] ? lock_release+0xa40/0xa40 [ 43.245993] ? mark_held_locks+0xaf/0x100 [ 43.250115] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 43.255209] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 43.260198] ? trace_hardirqs_on+0xd/0x10 [ 43.264327] ? ___ratelimit+0x95/0x630 [ 43.268187] ? idr_get_free_cmn+0xfd0/0xfd0 [ 43.272483] ? check_noncircular+0x20/0x20 [ 43.276685] ? find_held_lock+0x138/0x1d0 [ 43.280815] oom_kill_process+0x8b5/0x14a0 [ 43.285032] ? has_ns_capability_noaudit+0x163/0x2a0 [ 43.290108] ? lock_downgrade+0x980/0x980 [ 43.294230] ? oom_evaluate_task+0x480/0x480 [ 43.298620] ? security_capable_noaudit+0x8b/0xc0 [ 43.303437] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 43.308518] ? has_capability+0x30/0x30 [ 43.312468] ? do_raw_spin_trylock+0x190/0x190 [ 43.317029] ? check_noncircular+0x20/0x20 [ 43.321241] ? has_capability_noaudit+0x24/0x30 [ 43.325881] ? oom_badness+0xd1/0x980 [ 43.329651] ? lock_release+0xa40/0xa40 [ 43.333592] ? do_try_to_free_pages+0xc53/0x1020 [ 43.338318] ? find_lock_task_mm+0x460/0x460 [ 43.342701] ? find_held_lock+0x35/0x1d0 [ 43.346740] ? out_of_memory+0xb3a/0x1220 [ 43.350857] ? lock_downgrade+0x980/0x980 [ 43.354977] ? lock_release+0xa40/0xa40 [ 43.358925] ? lock_acquire+0x1d5/0x580 [ 43.362867] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 43.367781] ? oom_evaluate_task+0x284/0x480 [ 43.372163] out_of_memory+0x86d/0x1220 [ 43.376114] ? oom_killer_disable+0x310/0x310 [ 43.380578] ? mutex_trylock+0x23a/0x2d0 [ 43.384609] ? __lock_is_held+0xb6/0x140 [ 43.388639] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 43.394069] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 43.398886] ? trace_hardirqs_on+0xd/0x10 [ 43.403028] ? warn_alloc+0x2b0/0x2b0 [ 43.406804] ? lock_downgrade+0x980/0x980 [ 43.410928] ? radix_tree_lookup_slot+0x99/0xe0 [ 43.415613] ? find_get_entry+0x53c/0x9e0 [ 43.419752] ? __lock_acquire+0x664/0x3e00 [ 43.423984] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 43.429846] ? __might_sleep+0x95/0x190 [ 43.433795] __alloc_pages_nodemask+0x9fb/0xd80 [ 43.438447] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 43.443440] ? add_to_page_cache_lru+0x510/0x510 [ 43.448174] ? check_noncircular+0x20/0x20 [ 43.452377] ? check_noncircular+0x20/0x20 [ 43.456581] ? lock_downgrade+0x980/0x980 [ 43.460708] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 43.465458] alloc_pages_current+0xb6/0x1e0 [ 43.469764] __page_cache_alloc+0x334/0x500 [ 43.474057] ? rcu_read_lock_held+0xa9/0xc0 [ 43.478350] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 43.485691] filemap_fault+0xefc/0x1c20 [ 43.489646] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 43.494816] ? __lock_page_or_retry+0x4f0/0x4f0 [ 43.499475] ? __lock_acquire+0x664/0x3e00 [ 43.503689] ? filemap_map_pages+0x942/0x15d0 [ 43.508177] ? __lock_acquire+0x664/0x3e00 [ 43.512402] ? find_get_entries_tag+0xeb0/0xeb0 [ 43.517051] ? check_noncircular+0x20/0x20 [ 43.521256] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 43.527083] ? free_obj_work+0x690/0x690 [ 43.531119] ? print_irqtrace_events+0x270/0x270 [ 43.535844] ? print_irqtrace_events+0x270/0x270 [ 43.540579] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 43.545738] ? check_noncircular+0x20/0x20 [ 43.549947] ? lock_acquire+0x1d5/0x580 [ 43.553887] ? lock_acquire+0x1d5/0x580 [ 43.557832] ? ext4_filemap_fault+0x7a/0xad [ 43.562125] ? __lock_acquire+0x664/0x3e00 [ 43.566329] ? lock_release+0xa40/0xa40 [ 43.570273] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 43.576130] ? rcu_note_context_switch+0x710/0x710 [ 43.581037] ? __might_sleep+0x95/0x190 [ 43.584984] ? down_read+0x96/0x150 [ 43.588582] ? ext4_filemap_fault+0x7a/0xad [ 43.592881] ? __down_interruptible+0x6b0/0x6b0 [ 43.597530] ? find_held_lock+0x35/0x1d0 [ 43.601564] ext4_filemap_fault+0x82/0xad [ 43.605684] __do_fault+0xeb/0x30f [ 43.609195] ? __set_current_blocked+0xcf/0x110 [ 43.613836] ? pte_offset_kernel+0xc7/0xc7 [ 43.618041] ? __set_task_blocked+0xf1/0x310 [ 43.622420] ? retarget_shared_pending+0x3c0/0x3c0 [ 43.627323] ? check_noncircular+0x20/0x20 [ 43.631543] ? do_raw_spin_trylock+0x190/0x190 [ 43.636100] __handle_mm_fault+0x1d8f/0x3ce0 [ 43.640486] ? __pmd_alloc+0x4e0/0x4e0 [ 43.644347] ? signal_setup_done+0x1f5/0x300 [ 43.648730] ? find_held_lock+0x35/0x1d0 [ 43.652771] ? handle_mm_fault+0x248/0x8d0 [ 43.657065] ? lock_downgrade+0x980/0x980 [ 43.661197] ? sync_mm_rss+0x113/0x180 [ 43.665062] handle_mm_fault+0x334/0x8d0 [ 43.669095] ? down_read_trylock+0xdb/0x170 [ 43.673385] ? __do_page_fault+0x32d/0xc90 [ 43.677591] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 43.682143] ? vmacache_find+0x5f/0x280 [ 43.686098] ? find_vma+0x30/0x150 [ 43.689610] __do_page_fault+0x5c9/0xc90 [ 43.693665] ? mm_fault_error+0x2c0/0x2c0 [ 43.697792] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 43.703299] ? do_syscall_64+0xb6/0x920 [ 43.707246] do_page_fault+0xee/0x720 [ 43.711026] ? __do_page_fault+0xc90/0xc90 [ 43.715253] ? syscall_return_slowpath+0x550/0x550 [ 43.720165] ? syscall_return_slowpath+0x2ad/0x550 [ 43.725071] ? prepare_exit_to_usermode+0x340/0x340 [ 43.730064] ? return_from_SYSCALL_64+0x10/0x75 [ 43.734791] ? page_fault+0x36/0x60 [ 43.738389] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 43.743203] ? page_fault+0x36/0x60 [ 43.746800] page_fault+0x4c/0x60 [ 43.750221] RIP: 0033:0x402a80 [ 43.753380] RSP: 002b:00007fff59e57c38 EFLAGS: 00010246 [ 43.758714] RAX: 0000000000000000 RBX: 00007fff59e58390 RCX: 00007f34595f8dd3 [ 43.765954] RDX: 00007fff59e57c40 RSI: 00007fff59e57d70 RDI: 0000000000000011 [ 43.773192] RBP: 00007fff59e58540 R08: 00007fff59e585c0 R09: 0000000000000001 [ 43.780435] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 43.787673] R13: 00007fff59e58920 R14: 0000000000000000 R15: 0000000000000000 [ 43.795131] Mem-Info: [ 43.798594] active_anon:3530 inactive_anon:63 isolated_anon:0 [ 43.798594] active_file:6 inactive_file:23 isolated_file:0 [ 43.798594] unevictable:0 dirty:0 writeback:0 unstable:0 [ 43.798594] slab_reclaimable:7248 slab_unreclaimable:82983 [ 43.798594] mapped:2 shmem:70 pagetables:296 bounce:0 [ 43.798594] free:18128 free_pcp:66 free_cma:0 [ 43.830573] Node 0 active_anon:14120kB inactive_anon:252kB active_file:24kB inactive_file:92kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 6144kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 43.857403] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 43.883562] lowmem_reserve[]: 0 2870 6381 6381 [ 43.888193] Node 0 DMA32 free:36056kB 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:2942340kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:112kB local_pcp:112kB free_cma:0kB [ 43.915812] lowmem_reserve[]: 0 0 3510 3510 [ 43.920156] Node 0 Normal free:20548kB min:37084kB low:46352kB high:55620kB active_anon:14092kB inactive_anon:248kB active_file:20kB inactive_file:88kB unevictable:0kB writepending:0kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3072kB pagetables:1184kB bounce:0kB free_pcp:152kB local_pcp:128kB free_cma:0kB [ 43.949835] lowmem_reserve[]: 0 0 0 0 [ 43.953675] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 43.967279] Node 0 DMA32: 6*4kB (UM) 4*8kB (UM) 6*16kB (UM) 2*32kB (UM) 4*64kB (UM) 4*128kB (M) 5*256kB (UM) 4*512kB (UM) 3*1024kB (UM) 2*2048kB (M) 6*4096kB (M) = 36056kB [ 43.982853] Node 0 Normal: 279*4kB (ME) 195*8kB (ME) 159*16kB (ME) 101*32kB (UME) 63*64kB (M) 17*128kB (UM) 15*256kB (UM) 0*512kB 0*1024kB 1*2048kB (M) 0*4096kB = 20548kB [ 43.998283] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 44.006869] 99 total pagecache pages [ 44.010595] 0 pages in swap cache [ 44.014053] Swap cache stats: add 0, delete 0, find 0/0 [ 44.019425] Free swap = 0kB [ 44.022470] Total swap = 0kB [ 44.025486] 1965979 pages RAM [ 44.028592] 0 pages HighMem/MovableOnly [ 44.032573] 327760 pages reserved [ 44.036035] Unreclaimable slab info: [ 44.039761] Name Used Total [ 44.045306] hashtab_node 118KB 119KB [ 44.050683] ebitmap_node 382KB 385KB [ 44.056066] avtab_node 1012KB 1013KB [ 44.061454] TIPC 1KB 7KB [ 44.066823] SCTPv6 2KB 4KB [ 44.072204] DCCPv6 2KB 7KB [ 44.077570] DCCP 2KB 6KB [ 44.083768] fib6_nodes 0KB 4KB [ 44.089148] ip6_dst_cache 7KB 7KB [ 44.094527] RAWv6 9KB 19KB [ 44.099909] UDPv6 12KB 14KB [ 44.105275] TCPv6 2KB 5KB [ 44.110665] sd_ext_cdb 0KB 3KB [ 44.116045] scsi_sense_cache 82KB 148KB [ 44.121434] virtio_scsi_cmd 16KB 16KB [ 44.126802] sgpool-128 8KB 8KB [ 44.132178] sgpool-64 4KB 6KB [ 44.137538] sgpool-32 69KB 78KB [ 44.142922] sgpool-16 19KB 22KB [ 44.148304] sgpool-8 175KB 176KB [ 44.153696] cfq_io_cq 15KB 19KB [ 44.159063] cfq_queue 25KB 27KB [ 44.164443] mqueue_inode_cache 1KB 7KB [ 44.169903] nfs_commit_data 3KB 7KB [ 44.175281] nfs_write_data 34KB 37KB [ 44.180650] jbd2_inode 1KB 3KB [ 44.186043] ext4_system_zone 0KB 3KB [ 44.191443] bio-1 1KB 3KB [ 44.196813] rpc_buffers 17KB 19KB [ 44.202188] rpc_tasks 2KB 3KB [ 44.207561] UNIX 777KB 780KB [ 44.212938] tcp_bind_bucket 0KB 4KB [ 44.219131] ip_fib_trie 0KB 3KB [ 44.224505] ip_fib_alias 0KB 3KB [ 44.229880] ip_dst_cache 4KB 7KB [ 44.235261] RAW 5KB 7KB [ 44.240642] UDP 29KB 39KB [ 44.246034] TCP 7KB 15KB [ 44.251421] hugetlbfs_inode_cache 1KB 7KB [ 44.257140] eventpoll_pwq 9KB 11KB [ 44.262516] eventpoll_epi 17KB 23KB [ 44.267928] inotify_inode_mark 3KB 11KB [ 44.273387] request_queue 36KB 90KB [ 44.278762] blkdev_ioc 21KB 23KB [ 44.284142] bio-0 286KB 288KB [ 44.289523] biovec-(1<<(21-12)) 470KB 470KB [ 44.295075] biovec-64 102KB 110KB [ 44.300448] biovec-16 11KB 18KB [ 44.305843] bio_integrity_payload 0KB 4KB [ 44.311557] khugepaged_mm_slot 0KB 3KB [ 44.317044] uid_cache 0KB 3KB [ 44.322435] dmaengine-unmap-2 0KB 3KB [ 44.327816] audit_buffer 0KB 3KB [ 44.333191] skbuff_fclone_cache 138KB 142KB [ 44.338744] skbuff_head_cache 1792KB 1792KB [ 44.344124] configfs_dir_cache 0KB 4KB [ 44.349577] file_lock_cache 160KB 166KB [ 44.355754] file_lock_ctx 1KB 3KB [ 44.361129] fsnotify_mark_connector 2KB 3KB [ 44.367047] shmem_inode_cache 1046KB 1046KB [ 44.372414] task_delay_info 320KB 336KB [ 44.377788] sigqueue 366KB 370KB [ 44.383175] kernfs_node_cache 2285KB 2287KB [ 44.388563] mnt_cache 15KB 16KB [ 44.393930] filp 8323KB 8823KB [ 44.399304] names_cache 110763KB 110793KB [ 44.404691] avc_node 37KB 39KB [ 44.410059] selinux_file_security 418KB 488KB [ 44.415781] selinux_inode_security 1946KB 1948KB [ 44.421596] key_jar 3KB 7KB [ 44.426974] nsproxy 0KB 3KB [ 44.432355] vm_area_struct 18787KB 18810KB [ 44.437723] mm_struct 4556KB 4570KB [ 44.443099] fs_cache 428KB 432KB [ 44.448463] files_cache 1605KB 1612KB [ 44.453840] signal_cache 2560KB 2565KB [ 44.459220] sighand_cache 219KB 339KB [ 44.464603] task_struct 10927KB 10927KB [ 44.469984] cred_jar 2369KB 2376KB [ 44.475364] anon_vma_chain 7886KB 7898KB [ 44.480752] anon_vma 133KB 365KB [ 44.486115] pid 223KB 248KB [ 44.492296] Acpi-Operand 106KB 170KB [ 44.497676] Acpi-Namespace 19KB 23KB [ 44.503051] numa_policy 0KB 3KB [ 44.508423] debug_objects_cache 531KB 531KB [ 44.513972] trace_event_file 144KB 147KB [ 44.519341] ftrace_event_field 254KB 255KB [ 44.524803] pool_workqueue 24KB 28KB [ 44.530184] page->ptl 3130KB 3142KB [ 44.535589] kmalloc-262144 1032KB 1032KB [ 44.540962] kmalloc-131072 650KB 650KB [ 44.546337] kmalloc-65536 264KB 264KB [ 44.551706] kmalloc-32768 825KB 825KB [ 44.557082] kmalloc-16384 181KB 181KB [ 44.562464] kmalloc-8192 470KB 470KB [ 44.567836] kmalloc-4096 6596KB 6625KB [ 44.573210] kmalloc-2048 3244KB 3244KB [ 44.578587] kmalloc-1024 3672KB 3677KB [ 44.583964] kmalloc-512 2786KB 2786KB [ 44.589343] kmalloc-256 1911KB 2392KB [ 44.594730] kmalloc-128 409KB 531KB [ 44.600111] kmalloc-96 2064KB 2064KB [ 44.605487] kmalloc-64 2472KB 2472KB [ 44.610867] kmalloc-32 2394KB 2405KB [ 44.616231] kmalloc-192 912KB 912KB [ 44.621603] kmem_cache 101KB 105KB [ 44.627759] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 44.636399] [ 1813] 0 1813 5411 193 86016 0 -1000 udevd [ 44.644568] [ 3507] 0 3507 14298 173 114688 0 0 rsyslogd [ 44.652994] [ 3562] 0 3562 4725 50 86016 0 0 cron [ 44.661082] [ 3581] 0 3581 3736 44 69632 0 0 mcstransd [ 44.669585] [ 3609] 0 3609 12490 152 131072 0 -1000 sshd [ 44.677664] [ 3633] 0 3633 3694 41 77824 0 0 getty [ 44.685851] [ 3634] 0 3634 3694 41 77824 0 0 getty [ 44.694052] [ 3635] 0 3635 3694 41 77824 0 0 getty [ 44.702220] [ 3636] 0 3636 3694 40 73728 0 0 getty [ 44.710415] [ 3637] 0 3637 3694 42 73728 0 0 getty [ 44.718590] [ 3638] 0 3638 3694 39 73728 0 0 getty [ 44.726762] [ 3639] 0 3639 3649 40 73728 0 0 getty [ 44.734943] [ 3642] 0 3642 5674 454 86016 0 -1000 udevd [ 44.743118] [ 3643] 0 3643 5674 454 86016 0 -1000 udevd [ 44.751289] [ 3660] 0 3660 17821 198 180224 0 0 sshd [ 44.759385] [ 3662] 0 3662 280 1 32768 0 0 syzkaller422145 [ 44.768434] [ 3663] 0 3663 4375 0 32768 0 0 syzkaller422145 [ 44.777471] [ 3664] 0 3664 4375 0 32768 0 0 syzkaller422145 [ 44.786507] [ 3665] 0 3665 4375 0 32768 0 0 syzkaller422145 [ 44.795558] [ 3666] 0 3666 4375 0 32768 0 0 syzkaller422145 [ 44.804588] [ 3667] 0 3667 4375 0 32768 0 0 syzkaller422145 [ 44.813626] [ 3668] 0 3668 4375 523 36864 0 0 syzkaller422145 [ 44.822684] [ 3669] 0 3669 4375 523 36864 0 0 syzkaller422145 [ 44.831724] [ 3670] 0 3670 4375 523 36864 0 0 syzkaller422145 [ 44.840764] Out of memory: Kill process 3668 (syzkaller422145) score 0 or sacrifice child [ 44.849940] Killed process 3668 (syzkaller422145) total-vm:17500kB, anon-rss:2092kB, file-rss:0kB, shmem-rss:0kB [ 44.862689] oom_reaper: reaped process 3668 (syzkaller422145), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 44.873711] udevd invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=-1000 [ 44.885179] udevd cpuset=/ mems_allowed=0 [ 44.889362] CPU: 1 PID: 1813 Comm: udevd Not tainted 4.15.0-rc8+ #263 [ 44.895918] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.905244] Call Trace: [ 44.907810] dump_stack+0x194/0x257 [ 44.911419] ? arch_local_irq_restore+0x53/0x53 [ 44.916062] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 44.921229] dump_header+0x28c/0xe1e [ 44.924919] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 44.930082] ? pagefault_out_of_memory+0x152/0x152 [ 44.934979] ? check_noncircular+0x20/0x20 [ 44.939188] ? print_irqtrace_events+0x270/0x270 [ 44.943924] ? __lock_acquire+0x664/0x3e00 [ 44.948130] ? check_noncircular+0x20/0x20 [ 44.952343] ? find_held_lock+0x35/0x1d0 [ 44.956380] ? check_noncircular+0x20/0x20 [ 44.960583] ? task_will_free_mem+0x252/0xaa0 [ 44.965053] ? print_irqtrace_events+0x270/0x270 [ 44.969789] ? ___ratelimit+0x30d/0x630 [ 44.973734] ? lock_downgrade+0x980/0x980 [ 44.977857] ? lock_release+0xa40/0xa40 [ 44.981807] ? mark_held_locks+0xaf/0x100 [ 44.985937] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 44.991023] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 44.996018] ? trace_hardirqs_on+0xd/0x10 [ 45.000143] ? ___ratelimit+0x95/0x630 [ 45.004001] ? idr_get_free_cmn+0xfd0/0xfd0 [ 45.008298] ? check_noncircular+0x20/0x20 [ 45.012499] ? find_held_lock+0x138/0x1d0 [ 45.016624] oom_kill_process+0x8b5/0x14a0 [ 45.020834] ? has_ns_capability_noaudit+0x163/0x2a0 [ 45.025908] ? lock_downgrade+0x980/0x980 [ 45.030037] ? oom_evaluate_task+0x480/0x480 [ 45.034434] ? security_capable_noaudit+0x8b/0xc0 [ 45.039251] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 45.044329] ? has_capability+0x30/0x30 [ 45.048271] ? do_raw_spin_trylock+0x190/0x190 [ 45.052823] ? check_noncircular+0x20/0x20 [ 45.057146] ? has_capability_noaudit+0x24/0x30 [ 45.061785] ? oom_badness+0xd1/0x980 [ 45.065554] ? lock_release+0xa40/0xa40 [ 45.069496] ? do_try_to_free_pages+0xc53/0x1020 [ 45.074223] ? find_lock_task_mm+0x460/0x460 [ 45.078606] ? find_held_lock+0x35/0x1d0 [ 45.082643] ? out_of_memory+0xb3a/0x1220 [ 45.086760] ? lock_downgrade+0x980/0x980 [ 45.090887] ? lock_release+0xa40/0xa40 [ 45.094830] ? lock_acquire+0x1d5/0x580 [ 45.098774] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 45.103678] ? oom_evaluate_task+0x284/0x480 [ 45.108059] out_of_memory+0x86d/0x1220 [ 45.112014] ? oom_killer_disable+0x310/0x310 [ 45.116482] ? mutex_trylock+0x23a/0x2d0 [ 45.120514] ? __lock_is_held+0xb6/0x140 [ 45.124554] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 45.129993] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 45.134827] ? trace_hardirqs_on+0xd/0x10 [ 45.138962] ? warn_alloc+0x2b0/0x2b0 [ 45.142732] ? lock_downgrade+0x980/0x980 [ 45.146867] ? radix_tree_lookup_slot+0x99/0xe0 [ 45.151518] ? find_get_entry+0x53c/0x9e0 [ 45.155656] ? __lock_acquire+0x664/0x3e00 [ 45.159893] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 45.165756] ? __might_sleep+0x95/0x190 [ 45.169707] __alloc_pages_nodemask+0x9fb/0xd80 [ 45.174356] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 45.179347] ? add_to_page_cache_lru+0x510/0x510 [ 45.184082] ? check_noncircular+0x20/0x20 [ 45.188295] ? check_noncircular+0x20/0x20 [ 45.192512] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 45.197257] alloc_pages_current+0xb6/0x1e0 [ 45.201553] __page_cache_alloc+0x334/0x500 [ 45.205846] ? rcu_read_lock_held+0xa9/0xc0 [ 45.210141] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 45.217480] filemap_fault+0xefc/0x1c20 [ 45.221423] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 45.226591] ? __lock_page_or_retry+0x4f0/0x4f0 [ 45.231239] ? filemap_map_pages+0x942/0x15d0 [ 45.235704] ? free_obj_work+0x690/0x690 [ 45.239748] ? find_get_entries_tag+0xeb0/0xeb0 [ 45.244396] ? check_noncircular+0x20/0x20 [ 45.248607] ? print_irqtrace_events+0x270/0x270 [ 45.253332] ? print_irqtrace_events+0x270/0x270 [ 45.258056] ? print_irqtrace_events+0x270/0x270 [ 45.262783] ? do_raw_spin_trylock+0x190/0x190 [ 45.267345] ? lock_acquire+0x1d5/0x580 [ 45.271286] ? lock_acquire+0x1d5/0x580 [ 45.275236] ? ext4_filemap_fault+0x7a/0xad [ 45.279530] ? __lock_acquire+0x664/0x3e00 [ 45.283736] ? lock_release+0xa40/0xa40 [ 45.287680] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 45.293535] ? rcu_note_context_switch+0x710/0x710 [ 45.298444] ? __might_sleep+0x95/0x190 [ 45.302392] ? down_read+0x96/0x150 [ 45.305988] ? ext4_filemap_fault+0x7a/0xad [ 45.310281] ? __down_interruptible+0x6b0/0x6b0 [ 45.314931] ext4_filemap_fault+0x82/0xad [ 45.319052] __do_fault+0xeb/0x30f [ 45.322565] ? pte_offset_kernel+0xc7/0xc7 [ 45.326773] ? do_raw_spin_trylock+0x190/0x190 [ 45.331331] ? check_noncircular+0x20/0x20 [ 45.335539] __handle_mm_fault+0x1d8f/0x3ce0 [ 45.339924] ? __pmd_alloc+0x4e0/0x4e0 [ 45.343787] ? find_held_lock+0x35/0x1d0 [ 45.347822] ? handle_mm_fault+0x248/0x8d0 [ 45.352034] ? lock_downgrade+0x980/0x980 [ 45.356184] handle_mm_fault+0x334/0x8d0 [ 45.360215] ? down_read_trylock+0xdb/0x170 [ 45.364511] ? __do_page_fault+0x32d/0xc90 [ 45.368720] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 45.373286] ? vmacache_find+0x5f/0x280 [ 45.377254] ? find_vma+0x30/0x150 [ 45.380770] __do_page_fault+0x5c9/0xc90 [ 45.384813] ? mm_fault_error+0x2c0/0x2c0 [ 45.388929] ? __fdget+0x18/0x20 [ 45.392275] do_page_fault+0xee/0x720 [ 45.396050] ? __do_page_fault+0xc90/0xc90 [ 45.400267] ? __sb_end_write+0xa0/0xd0 [ 45.404210] ? vfs_write+0x224/0x510 [ 45.407901] ? retint_user+0x18/0x18 [ 45.411585] ? page_fault+0x36/0x60 [ 45.415185] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 45.420010] ? page_fault+0x36/0x60 [ 45.423622] page_fault+0x4c/0x60 [ 45.427131] RIP: 0033:0x7f0f5c3d4cad [ 45.430812] RSP: 002b:00007ffe407695a8 EFLAGS: 00010206 [ 45.436144] RAX: 0000000000000000 RBX: 00007ffe40769650 RCX: 00007f0f5c37c210 [ 45.443392] RDX: 0000000000000008 RSI: 00000000004203c8 RDI: 00007ffe40769678 [ 45.450629] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000001 [ 45.457869] R10: 0000000000000008 R11: 00007f0f5c3f5e90 R12: 00007ffe40769670 [ 45.465108] R13: 00000000000000a2 R14: 0000000000f66a10 R15: 0000000000f5c030 [ 45.472430] Mem-Info: [ 45.475648] active_anon:3014 inactive_anon:63 isolated_anon:0 [ 45.475648] active_file:40 inactive_file:0 isolated_file:0 [ 45.475648] unevictable:0 dirty:0 writeback:0 unstable:0 [ 45.475648] slab_reclaimable:7248 slab_unreclaimable:82983 [ 45.475648] mapped:2 shmem:70 pagetables:296 bounce:0 [ 45.475648] free:18640 free_pcp:73 free_cma:0 [ 45.507626] Node 0 active_anon:12056kB inactive_anon:252kB active_file:160kB 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: 6144kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 45.535548] 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 [ 45.561698] lowmem_reserve[]: 0 2870 6381 6381 [ 45.566328] Node 0 DMA32 free:36056kB 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:2942340kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:112kB local_pcp:112kB free_cma:0kB [ 45.593955] lowmem_reserve[]: 0 0 3510 3510 [ 45.598309] Node 0 Normal free:22596kB min:37084kB low:46352kB high:55620kB active_anon:12028kB inactive_anon:248kB active_file:152kB inactive_file:0kB unevictable:0kB writepending:0kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3072kB pagetables:1184kB bounce:0kB free_pcp:180kB local_pcp:128kB free_cma:0kB [ 45.627931] lowmem_reserve[]: 0 0 0 0 [ 45.631782] 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 [ 45.645435] Node 0 DMA32: 6*4kB (UM) 4*8kB (UM) 6*16kB (UM) 2*32kB (UM) 4*64kB (UM) 4*128kB (M) 5*256kB (UM) 4*512kB (UM) 3*1024kB (UM) 2*2048kB (M) 6*4096kB (M) = 36056kB [ 45.661036] Node 0 Normal: 279*4kB (ME) 195*8kB (ME) 159*16kB (ME) 101*32kB (UME) 63*64kB (M) 17*128kB (UM) 15*256kB (UM) 0*512kB 0*1024kB 2*2048kB (M) 0*4096kB = 22596kB [ 45.676522] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 45.685112] 99 total pagecache pages [ 45.688839] 0 pages in swap cache [ 45.692366] Swap cache stats: add 0, delete 0, find 0/0 [ 45.697748] Free swap = 0kB [ 45.700765] Total swap = 0kB [ 45.703788] 1965979 pages RAM [ 45.706902] 0 pages HighMem/MovableOnly [ 45.710873] 327760 pages reserved [ 45.714340] Unreclaimable slab info: [ 45.718053] Name Used Total [ 45.723603] hashtab_node 118KB 119KB [ 45.729058] ebitmap_node 382KB 385KB [ 45.734457] avtab_node 1012KB 1013KB [ 45.739841] TIPC 1KB 7KB [ 45.745224] SCTPv6 2KB 4KB [ 45.750603] DCCPv6 2KB 7KB [ 45.755986] DCCP 2KB 6KB [ 45.761844] fib6_nodes 0KB 4KB [ 45.767231] ip6_dst_cache 7KB 7KB [ 45.772625] RAWv6 9KB 19KB [ 45.777995] UDPv6 12KB 14KB [ 45.783387] TCPv6 2KB 5KB [ 45.788789] sd_ext_cdb 0KB 3KB [ 45.794160] scsi_sense_cache 82KB 148KB [ 45.799537] virtio_scsi_cmd 16KB 16KB [ 45.804925] sgpool-128 8KB 8KB [ 45.810288] sgpool-64 4KB 6KB [ 45.815666] sgpool-32 69KB 78KB [ 45.821050] sgpool-16 19KB 22KB [ 45.826445] sgpool-8 175KB 176KB [ 45.831827] cfq_io_cq 15KB 19KB [ 45.837216] cfq_queue 24KB 27KB [ 45.842598] mqueue_inode_cache 1KB 7KB [ 45.848065] nfs_commit_data 3KB 7KB [ 45.853436] nfs_write_data 34KB 37KB [ 45.858884] jbd2_inode 1KB 3KB [ 45.864276] ext4_system_zone 0KB 3KB [ 45.869674] bio-1 1KB 3KB [ 45.875054] rpc_buffers 17KB 19KB [ 45.880429] rpc_tasks 2KB 3KB [ 45.885817] UNIX 777KB 780KB [ 45.891616] tcp_bind_bucket 0KB 4KB [ 45.897006] ip_fib_trie 0KB 3KB [ 45.902416] ip_fib_alias 0KB 3KB [ 45.907785] ip_dst_cache 4KB 7KB [ 45.913163] RAW 5KB 7KB [ 45.918551] UDP 29KB 39KB [ 45.923920] TCP 7KB 15KB [ 45.929300] hugetlbfs_inode_cache 1KB 7KB [ 45.935040] eventpoll_pwq 9KB 11KB [ 45.940423] eventpoll_epi 17KB 23KB [ 45.945791] inotify_inode_mark 3KB 11KB [ 45.951264] request_queue 36KB 90KB [ 45.956632] blkdev_ioc 21KB 23KB [ 45.962038] bio-0 286KB 288KB [ 45.967406] biovec-(1<<(21-12)) 470KB 470KB [ 45.972960] biovec-64 102KB 110KB [ 45.978342] biovec-16 11KB 18KB [ 45.983728] bio_integrity_payload 0KB 4KB [ 45.989447] khugepaged_mm_slot 0KB 3KB [ 45.994918] uid_cache 0KB 3KB [ 46.000302] dmaengine-unmap-2 0KB 3KB [ 46.005685] audit_buffer 0KB 3KB [ 46.011067] skbuff_fclone_cache 138KB 142KB [ 46.016620] skbuff_head_cache 1792KB 1792KB [ 46.021994] configfs_dir_cache 0KB 4KB [ 46.027975] file_lock_cache 160KB 166KB [ 46.033361] file_lock_ctx 1KB 3KB [ 46.038746] fsnotify_mark_connector 2KB 3KB [ 46.044635] shmem_inode_cache 1046KB 1046KB [ 46.050367] task_delay_info 320KB 336KB [ 46.055748] sigqueue 366KB 370KB [ 46.061126] kernfs_node_cache 2285KB 2287KB [ 46.066494] mnt_cache 15KB 16KB [ 46.071872] filp 8321KB 8820KB [ 46.077262] names_cache 110763KB 110793KB [ 46.082650] avc_node 37KB 39KB [ 46.088040] selinux_file_security 417KB 488KB [ 46.093774] selinux_inode_security 1946KB 1948KB [ 46.099575] key_jar 3KB 7KB [ 46.104953] nsproxy 0KB 3KB [ 46.110322] vm_area_struct 18786KB 18810KB [ 46.115698] mm_struct 4556KB 4570KB [ 46.121327] fs_cache 428KB 432KB [ 46.126705] files_cache 1605KB 1612KB [ 46.132071] signal_cache 2560KB 2565KB [ 46.137452] sighand_cache 219KB 339KB [ 46.142819] task_struct 10927KB 10927KB [ 46.148196] cred_jar 2369KB 2376KB [ 46.153592] anon_vma_chain 7885KB 7898KB [ 46.160381] anon_vma 133KB 365KB [ 46.165770] pid 223KB 248KB [ 46.171140] Acpi-Operand 106KB 170KB [ 46.176520] Acpi-Namespace 19KB 23KB [ 46.181908] numa_policy 0KB 3KB [ 46.187288] debug_objects_cache 531KB 531KB [ 46.192853] trace_event_file 144KB 147KB [ 46.198243] ftrace_event_field 254KB 255KB [ 46.203716] pool_workqueue 24KB 28KB [ 46.209095] page->ptl 3130KB 3142KB [ 46.214498] kmalloc-262144 1032KB 1032KB [ 46.219866] kmalloc-131072 650KB 650KB [ 46.225249] kmalloc-65536 264KB 264KB [ 46.230645] kmalloc-32768 825KB 825KB [ 46.236035] kmalloc-16384 181KB 181KB [ 46.241426] kmalloc-8192 470KB 470KB [ 46.246800] kmalloc-4096 6591KB 6625KB [ 46.252552] kmalloc-2048 3244KB 3244KB [ 46.257923] kmalloc-1024 3672KB 3677KB [ 46.263306] kmalloc-512 2786KB 2786KB [ 46.268674] kmalloc-256 1911KB 2392KB [ 46.274052] kmalloc-128 409KB 531KB [ 46.279431] kmalloc-96 2064KB 2064KB [ 46.284815] kmalloc-64 2471KB 2472KB [ 46.290977] kmalloc-32 2394KB 2405KB [ 46.296372] kmalloc-192 911KB 912KB [ 46.301755] kmem_cache 101KB 105KB [ 46.307137] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 46.315756] [ 1813] 0 1813 5411 193 86016 0 -1000 udevd [ 46.323925] [ 3507] 0 3507 14298 173 114688 0 0 rsyslogd [ 46.332361] [ 3562] 0 3562 4725 50 86016 0 0 cron [ 46.340452] [ 3581] 0 3581 3736 44 69632 0 0 mcstransd [ 46.348965] [ 3609] 0 3609 12490 152 131072 0 -1000 sshd [ 46.357063] [ 3633] 0 3633 3694 41 77824 0 0 getty [ 46.365239] [ 3634] 0 3634 3694 41 77824 0 0 getty [ 46.373413] [ 3635] 0 3635 3694 41 77824 0 0 getty [ 46.381588] [ 3636] 0 3636 3694 40 73728 0 0 getty [ 46.389762] [ 3637] 0 3637 3694 42 73728 0 0 getty [ 46.397938] [ 3638] 0 3638 3694 39 73728 0 0 getty [ 46.406118] [ 3639] 0 3639 3649 40 73728 0 0 getty [ 46.414285] [ 3642] 0 3642 5674 454 86016 0 -1000 udevd [ 46.422459] [ 3643] 0 3643 5674 454 86016 0 -1000 udevd [ 46.430676] [ 3660] 0 3660 17821 198 180224 0 0 sshd [ 46.438762] [ 3662] 0 3662 280 1 32768 0 0 syzkaller422145 [ 46.447828] [ 3663] 0 3663 4375 0 32768 0 0 syzkaller422145 [ 46.456864] [ 3664] 0 3664 4375 0 32768 0 0 syzkaller422145 [ 46.465901] [ 3665] 0 3665 4375 0 32768 0 0 syzkaller422145 [ 46.474944] [ 3666] 0 3666 4375 0 32768 0 0 syzkaller422145 [ 46.483976] [ 3667] 0 3667 4375 0 32768 0 0 syzkaller422145 [ 46.493042] [ 3668] 0 3668 4375 0 32768 0 0 syzkaller422145 [ 46.502078] [ 3669] 0 3669 4375 523 36864 0 0 syzkaller422145 [ 46.511117] [ 3670] 0 3670 4375 523 36864 0 0 syzkaller422145 [ 46.520163] Out of memory: Kill process 3669 (syzkaller422145) score 0 or sacrifice child [ 46.528576] Killed process 3669 (syzkaller422145) total-vm:17500kB, anon-rss:2092kB, file-rss:0kB, shmem-rss:0kB [ 46.542512] oom_reaper: reaped process 3669 (syzkaller422145), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 46.553959] kworker/0:1 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 46.566593] kworker/0:1 cpuset=/ mems_allowed=0 [ 46.571394] CPU: 0 PID: 23 Comm: kworker/0:1 Not tainted 4.15.0-rc8+ #263 [ 46.578307] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.587665] Workqueue: events pcpu_balance_workfn [ 46.592501] Call Trace: [ 46.595092] dump_stack+0x194/0x257 [ 46.598737] ? arch_local_irq_restore+0x53/0x53 [ 46.603400] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 46.608594] dump_header+0x28c/0xe1e [ 46.612315] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 46.617502] ? pagefault_out_of_memory+0x152/0x152 [ 46.622420] ? check_noncircular+0x20/0x20 [ 46.626647] ? print_irqtrace_events+0x270/0x270 [ 46.631400] ? __lock_acquire+0x664/0x3e00 [ 46.635632] ? check_noncircular+0x20/0x20 [ 46.639873] ? find_held_lock+0x35/0x1d0 [ 46.643937] ? check_noncircular+0x20/0x20 [ 46.648164] ? task_will_free_mem+0x252/0xaa0 [ 46.652662] ? print_irqtrace_events+0x270/0x270 [ 46.657419] ? ___ratelimit+0x30d/0x630 [ 46.661387] ? lock_downgrade+0x980/0x980 [ 46.665533] ? lock_release+0xa40/0xa40 [ 46.669504] ? mark_held_locks+0xaf/0x100 [ 46.673645] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 46.678741] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 46.683751] ? trace_hardirqs_on+0xd/0x10 [ 46.687895] ? ___ratelimit+0x95/0x630 [ 46.691950] ? idr_get_free_cmn+0xfd0/0xfd0 [ 46.696265] ? check_noncircular+0x20/0x20 [ 46.700483] ? find_held_lock+0x138/0x1d0 [ 46.704647] oom_kill_process+0x8b5/0x14a0 [ 46.708870] ? has_ns_capability_noaudit+0x163/0x2a0 [ 46.713960] ? lock_downgrade+0x980/0x980 [ 46.718108] ? oom_evaluate_task+0x480/0x480 [ 46.722540] ? security_capable_noaudit+0x8b/0xc0 [ 46.727382] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 46.732477] ? has_capability+0x30/0x30 [ 46.736446] ? do_raw_spin_trylock+0x190/0x190 [ 46.741015] ? check_noncircular+0x20/0x20 [ 46.745267] ? has_capability_noaudit+0x24/0x30 [ 46.749929] ? oom_badness+0xd1/0x980 [ 46.753718] ? lock_release+0xa40/0xa40 [ 46.757678] ? do_try_to_free_pages+0xc53/0x1020 [ 46.762437] ? find_lock_task_mm+0x460/0x460 [ 46.766838] ? find_held_lock+0x35/0x1d0 [ 46.770883] ? out_of_memory+0xb3a/0x1220 [ 46.775008] ? lock_downgrade+0x980/0x980 [ 46.779151] ? lock_release+0xa40/0xa40 [ 46.783110] ? lock_acquire+0x1d5/0x580 [ 46.787073] ? blocking_notifier_call_chain+0x112/0x190 [ 46.792423] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 46.797358] ? oom_evaluate_task+0x284/0x480 [ 46.801766] out_of_memory+0x86d/0x1220 [ 46.805763] ? oom_killer_disable+0x310/0x310 [ 46.810245] ? mutex_trylock+0x23a/0x2d0 [ 46.814296] ? __lock_is_held+0xb6/0x140 [ 46.818348] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 46.823813] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 46.828716] ? warn_alloc+0x2b0/0x2b0 [ 46.832507] ? check_noncircular+0x20/0x20 [ 46.836743] ? print_irqtrace_events+0x270/0x270 [ 46.841500] ? find_held_lock+0x35/0x1d0 [ 46.845564] ? __mutex_lock+0x5bd/0x1a80 [ 46.849623] ? __lock_acquire+0x664/0x3e00 [ 46.853846] ? lock_release+0xa40/0xa40 [ 46.857813] ? memset+0x31/0x40 [ 46.861082] ? do_raw_spin_trylock+0x190/0x190 [ 46.865771] ? __lock_is_held+0xb6/0x140 [ 46.869846] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 46.875740] ? __might_sleep+0x95/0x190 [ 46.879716] __alloc_pages_nodemask+0x9fb/0xd80 [ 46.884388] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 46.889397] ? __lock_acquire+0x664/0x3e00 [ 46.893630] ? __lock_acquire+0x664/0x3e00 [ 46.897863] ? print_irqtrace_events+0x270/0x270 [ 46.902622] ? __lock_is_held+0xb6/0x140 [ 46.906692] ? find_next_bit+0x27/0x30 [ 46.910585] pcpu_populate_chunk+0x1b3/0x880 [ 46.915009] pcpu_balance_workfn+0xf3e/0x1520 [ 46.919505] ? check_noncircular+0x20/0x20 [ 46.923730] ? find_held_lock+0x35/0x1d0 [ 46.927801] ? pcpu_create_chunk+0x900/0x900 [ 46.932205] ? lock_release+0xa40/0xa40 [ 46.936172] ? check_noncircular+0x20/0x20 [ 46.940407] ? lock_acquire+0x1d5/0x580 [ 46.944366] ? lock_acquire+0x1d5/0x580 [ 46.948330] ? process_one_work+0xb01/0x1b10 [ 46.952754] ? __lock_is_held+0xb6/0x140 [ 46.956829] process_one_work+0xbbf/0x1b10 [ 46.961047] ? trace_hardirqs_on+0xd/0x10 [ 46.965219] ? pwq_dec_nr_in_flight+0x450/0x450 [ 46.969895] ? __schedule+0x8f3/0x2060 [ 46.973802] ? check_noncircular+0x20/0x20 [ 46.978025] ? __lock_is_held+0xb6/0x140 [ 46.982124] ? lock_acquire+0x1d5/0x580 [ 46.986088] ? lock_acquire+0x1d5/0x580 [ 46.990051] ? worker_thread+0x4a3/0x1990 [ 46.994194] ? lock_downgrade+0x980/0x980 [ 46.998341] ? lock_release+0xa40/0xa40 [ 47.002307] ? worker_pool_assign_id+0x1b0/0x1b0 [ 47.007075] ? do_raw_spin_trylock+0x190/0x190 [ 47.011688] worker_thread+0x223/0x1990 [ 47.015692] ? process_one_work+0x1b10/0x1b10 [ 47.020183] ? _raw_spin_unlock_irq+0x27/0x70 [ 47.024681] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 47.029692] ? trace_hardirqs_on+0xd/0x10 [ 47.033828] ? _raw_spin_unlock_irq+0x27/0x70 [ 47.038314] ? finish_task_switch+0x1d3/0x740 [ 47.042796] ? finish_task_switch+0x1aa/0x740 [ 47.047289] ? copy_overflow+0x20/0x20 [ 47.051181] ? __schedule+0x8f3/0x2060 [ 47.055095] ? find_held_lock+0x35/0x1d0 [ 47.059157] ? find_held_lock+0x35/0x1d0 [ 47.063222] ? complete+0x62/0x80 [ 47.067020] ? __schedule+0x2060/0x2060 [ 47.070976] ? do_wait_intr_irq+0x3e0/0x3e0 [ 47.075282] ? __lockdep_init_map+0xe4/0x650 [ 47.079685] ? do_raw_spin_trylock+0x190/0x190 [ 47.084257] ? lockdep_init_map+0x9/0x10 [ 47.088308] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 47.093406] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 47.098412] ? trace_hardirqs_on+0xd/0x10 [ 47.102567] ? __kthread_parkme+0x175/0x240 [ 47.106878] kthread+0x33c/0x400 [ 47.110227] ? process_one_work+0x1b10/0x1b10 [ 47.114710] ? kthread_stop+0x7a0/0x7a0 [ 47.118689] ret_from_fork+0x37/0x50 [ 47.122500] Mem-Info: [ 47.124918] active_anon:2496 inactive_anon:63 isolated_anon:0 [ 47.124918] active_file:20 inactive_file:9 isolated_file:0 [ 47.124918] unevictable:0 dirty:0 writeback:0 unstable:0 [ 47.124918] slab_reclaimable:7248 slab_unreclaimable:82982 [ 47.124918] mapped:2 shmem:70 pagetables:294 bounce:0 [ 47.124918] free:19152 free_pcp:79 free_cma:0 [ 47.156881] Node 0 active_anon:9984kB inactive_anon:252kB active_file:80kB inactive_file:36kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 2048kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 47.184409] 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 [ 47.210563] lowmem_reserve[]: 0 2870 6381 6381 [ 47.215191] Node 0 DMA32 free:36056kB min:30332kB low:37912kB high:45492kB active_anon:28kB inactive_anon:4kB active_file:0kB inactive_file:12kB unevictable:0kB writepending:0kB present:3129332kB managed:2942340kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:112kB local_pcp:0kB free_cma:0kB [ 47.242717] lowmem_reserve[]: 0 0 3510 3510 [ 47.247058] Node 0 Normal free:24644kB min:37084kB low:46352kB high:55620kB active_anon:9956kB inactive_anon:248kB active_file:84kB inactive_file:24kB unevictable:0kB writepending:0kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3072kB pagetables:1176kB bounce:0kB free_pcp:204kB local_pcp:52kB free_cma:0kB [ 47.275739] lowmem_reserve[]: 0 0 0 0 [ 47.279584] 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 [ 47.293298] Node 0 DMA32: 6*4kB (UM) 4*8kB (UM) 6*16kB (UM) 2*32kB (UM) 4*64kB (UM) 4*128kB (M) 5*256kB (UM) 4*512kB (UM) 3*1024kB (UM) 2*2048kB (M) 6*4096kB (M) = 36056kB [ 47.308867] Node 0 Normal: 279*4kB (ME) 195*8kB (ME) 159*16kB (ME) 101*32kB (UME) 63*64kB (M) 17*128kB (UM) 15*256kB (UM) 0*512kB 0*1024kB 1*2048kB (M) 1*4096kB (M) = 24644kB [ 47.324651] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 47.333239] 99 total pagecache pages [ 47.336967] 0 pages in swap cache [ 47.340424] Swap cache stats: add 0, delete 0, find 0/0 [ 47.345792] Free swap = 0kB [ 47.348806] Total swap = 0kB [ 47.351828] 1965979 pages RAM [ 47.354926] 0 pages HighMem/MovableOnly [ 47.358900] 327760 pages reserved [ 47.362430] Unreclaimable slab info: [ 47.366247] Name Used Total [ 47.371845] hashtab_node 118KB 119KB [ 47.377209] ebitmap_node 382KB 385KB [ 47.382582] avtab_node 1012KB 1013KB [ 47.387950] TIPC 1KB 7KB [ 47.393327] SCTPv6 2KB 4KB [ 47.398713] DCCPv6 2KB 7KB [ 47.404076] DCCP 2KB 6KB [ 47.409470] fib6_nodes 0KB 4KB [ 47.414843] ip6_dst_cache 7KB 7KB [ 47.420221] RAWv6 9KB 19KB [ 47.425603] UDPv6 12KB 14KB [ 47.430968] TCPv6 2KB 5KB [ 47.436358] sd_ext_cdb 0KB 3KB [ 47.441737] scsi_sense_cache 82KB 148KB [ 47.447102] virtio_scsi_cmd 16KB 16KB [ 47.452479] sgpool-128 8KB 8KB [ 47.457841] sgpool-64 4KB 6KB [ 47.463212] sgpool-32 69KB 78KB [ 47.468599] sgpool-16 19KB 22KB [ 47.473973] sgpool-8 175KB 176KB [ 47.479349] cfq_io_cq 15KB 19KB [ 47.484732] cfq_queue 24KB 27KB [ 47.490099] mqueue_inode_cache 1KB 7KB [ 47.495564] nfs_commit_data 3KB 7KB [ 47.500941] nfs_write_data 34KB 37KB [ 47.506318] jbd2_inode 1KB 3KB [ 47.511700] ext4_system_zone 0KB 3KB [ 47.517072] bio-1 1KB 3KB [ 47.522455] rpc_buffers 17KB 19KB [ 47.527816] rpc_tasks 2KB 3KB [ 47.533192] UNIX 777KB 780KB [ 47.538567] tcp_bind_bucket 0KB 4KB [ 47.543951] ip_fib_trie 0KB 3KB [ 47.549323] ip_fib_alias 0KB 3KB [ 47.554697] ip_dst_cache 4KB 7KB [ 47.560085] RAW 5KB 7KB [ 47.565484] UDP 29KB 39KB [ 47.570848] TCP 7KB 15KB [ 47.576220] hugetlbfs_inode_cache 1KB 7KB [ 47.581945] eventpoll_pwq 9KB 11KB [ 47.587323] eventpoll_epi 17KB 23KB [ 47.592686] inotify_inode_mark 3KB 11KB [ 47.598153] request_queue 36KB 90KB [ 47.603546] blkdev_ioc 21KB 23KB [ 47.608917] bio-0 286KB 288KB [ 47.614292] biovec-(1<<(21-12)) 470KB 470KB [ 47.619840] biovec-64 102KB 110KB [ 47.625202] biovec-16 11KB 18KB [ 47.630582] bio_integrity_payload 0KB 4KB [ 47.636303] khugepaged_mm_slot 0KB 3KB [ 47.641790] uid_cache 0KB 3KB [ 47.647168] dmaengine-unmap-2 0KB 3KB [ 47.652553] audit_buffer 0KB 3KB [ 47.657919] skbuff_fclone_cache 138KB 142KB [ 47.663467] skbuff_head_cache 1792KB 1792KB [ 47.668845] configfs_dir_cache 0KB 4KB [ 47.674299] file_lock_cache 160KB 166KB [ 47.679674] file_lock_ctx 1KB 3KB [ 47.685049] fsnotify_mark_connector 2KB 3KB [ 47.690947] shmem_inode_cache 1046KB 1046KB [ 47.697161] task_delay_info 320KB 336KB [ 47.702630] sigqueue 366KB 370KB [ 47.707994] kernfs_node_cache 2285KB 2287KB [ 47.713378] mnt_cache 15KB 16KB [ 47.718760] filp 8321KB 8820KB [ 47.724124] names_cache 110763KB 110793KB [ 47.729506] avc_node 37KB 39KB [ 47.734868] selinux_file_security 417KB 488KB [ 47.740588] selinux_inode_security 1946KB 1948KB [ 47.746400] key_jar 3KB 7KB [ 47.751780] nsproxy 0KB 3KB [ 47.757141] vm_area_struct 18786KB 18810KB [ 47.762514] mm_struct 4556KB 4570KB [ 47.767885] fs_cache 428KB 432KB [ 47.773270] files_cache 1605KB 1612KB [ 47.778654] signal_cache 2560KB 2565KB [ 47.784049] sighand_cache 219KB 339KB [ 47.789433] task_struct 10927KB 10927KB [ 47.794806] cred_jar 2369KB 2376KB [ 47.800181] anon_vma_chain 7885KB 7898KB [ 47.805564] anon_vma 133KB 365KB [ 47.810927] pid 223KB 248KB [ 47.816299] Acpi-Operand 106KB 170KB [ 47.821665] Acpi-Namespace 19KB 23KB [ 47.827037] numa_policy 0KB 3KB [ 47.832418] debug_objects_cache 531KB 531KB [ 47.837956] trace_event_file 144KB 147KB [ 47.843330] ftrace_event_field 254KB 255KB [ 47.848892] pool_workqueue 24KB 28KB [ 47.854273] page->ptl 3130KB 3142KB [ 47.859662] kmalloc-262144 1032KB 1032KB [ 47.865044] kmalloc-131072 650KB 650KB [ 47.870428] kmalloc-65536 264KB 264KB [ 47.875802] kmalloc-32768 825KB 825KB [ 47.881178] kmalloc-16384 181KB 181KB [ 47.886577] kmalloc-8192 470KB 470KB [ 47.891969] kmalloc-4096 6591KB 6625KB [ 47.897360] kmalloc-2048 3244KB 3244KB [ 47.903007] kmalloc-1024 3672KB 3677KB [ 47.908415] kmalloc-512 2786KB 2786KB [ 47.913784] kmalloc-256 1911KB 2392KB [ 47.919433] kmalloc-128 409KB 531KB [ 47.924820] kmalloc-96 2064KB 2064KB [ 47.930188] kmalloc-64 2471KB 2472KB [ 47.935570] kmalloc-32 2394KB 2405KB [ 47.940990] kmalloc-192 911KB 912KB [ 47.946377] kmem_cache 101KB 105KB [ 47.951763] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 47.960430] [ 1813] 0 1813 5411 193 86016 0 -1000 udevd [ 47.968685] [ 3507] 0 3507 14298 173 114688 0 0 rsyslogd [ 47.977118] [ 3562] 0 3562 4725 50 86016 0 0 cron [ 47.985192] [ 3581] 0 3581 3736 44 69632 0 0 mcstransd [ 47.993718] [ 3609] 0 3609 12490 152 131072 0 -1000 sshd [ 48.001808] [ 3633] 0 3633 3694 41 77824 0 0 getty [ 48.009981] [ 3634] 0 3634 3694 41 77824 0 0 getty [ 48.018158] [ 3635] 0 3635 3694 41 77824 0 0 getty [ 48.026308] [ 3636] 0 3636 3694 40 73728 0 0 getty [ 48.034471] [ 3637] 0 3637 3694 42 73728 0 0 getty [ 48.042644] [ 3638] 0 3638 3694 39 73728 0 0 getty [ 48.050815] [ 3639] 0 3639 3649 40 73728 0 0 getty [ 48.058994] [ 3642] 0 3642 5674 454 86016 0 -1000 udevd [ 48.067172] [ 3643] 0 3643 5674 454 86016 0 -1000 udevd [ 48.075325] [ 3660] 0 3660 17821 198 180224 0 0 sshd [ 48.083431] [ 3662] 0 3662 280 1 32768 0 0 syzkaller422145 [ 48.092455] [ 3663] 0 3663 4375 0 32768 0 0 syzkaller422145 [ 48.101491] [ 3664] 0 3664 4375 0 32768 0 0 syzkaller422145 [ 48.110517] [ 3665] 0 3665 4375 0 32768 0 0 syzkaller422145 [ 48.119568] [ 3666] 0 3666 4375 0 32768 0 0 syzkaller422145 [ 48.128609] [ 3667] 0 3667 4375 0 32768 0 0 syzkaller422145 [ 48.137648] [ 3668] 0 3668 4375 0 32768 0 0 syzkaller422145 [ 48.146677] [ 3669] 0 3669 4375 0 32768 0 0 syzkaller422145 [ 48.155715] [ 3670] 0 3670 4375 523 36864 0 0 syzkaller422145 [ 48.164742] Out of memory: Kill process 3670 (syzkaller422145) score 0 or sacrifice child [ 48.173308] Killed process 3670 (syzkaller422145) total-vm:17500kB, anon-rss:2092kB, file-rss:0kB, shmem-rss:0kB [ 48.185979] oom_reaper: reaped process 3670 (syzkaller422145), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 48.303718] rsyslogd invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=0 [ 48.315525] rsyslogd cpuset=/ mems_allowed=0 [ 48.319995] CPU: 0 PID: 3511 Comm: rsyslogd Not tainted 4.15.0-rc8+ #263 [ 48.326816] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.336151] Call Trace: [ 48.338730] dump_stack+0x194/0x257 [ 48.342348] ? arch_local_irq_restore+0x53/0x53 [ 48.347017] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 48.352214] dump_header+0x28c/0xe1e [ 48.355932] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 48.361119] ? pagefault_out_of_memory+0x152/0x152 [ 48.366036] ? check_noncircular+0x20/0x20 [ 48.370266] ? print_irqtrace_events+0x270/0x270 [ 48.375009] ? __lock_acquire+0x664/0x3e00 [ 48.379244] ? check_noncircular+0x20/0x20 [ 48.383478] ? print_irqtrace_events+0x270/0x270 [ 48.388234] ? check_noncircular+0x20/0x20 [ 48.392450] ? task_will_free_mem+0x252/0xaa0 [ 48.397110] ? print_irqtrace_events+0x270/0x270 [ 48.401867] ? ___ratelimit+0x30d/0x630 [ 48.405831] ? lock_downgrade+0x980/0x980 [ 48.409975] ? lock_release+0xa40/0xa40 [ 48.413945] ? mark_held_locks+0xaf/0x100 [ 48.418085] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 48.423178] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 48.428184] ? trace_hardirqs_on+0xd/0x10 [ 48.432328] ? ___ratelimit+0x95/0x630 [ 48.436208] ? idr_get_free_cmn+0xfd0/0xfd0 [ 48.440527] ? check_noncircular+0x20/0x20 [ 48.444739] ? find_held_lock+0x138/0x1d0 [ 48.448870] oom_kill_process+0x8b5/0x14a0 [ 48.453100] ? has_ns_capability_noaudit+0x163/0x2a0 [ 48.458198] ? check_noncircular+0x20/0x20 [ 48.462425] ? oom_evaluate_task+0x480/0x480 [ 48.466822] ? security_capable_noaudit+0x8b/0xc0 [ 48.471662] ? find_held_lock+0x35/0x1d0 [ 48.475715] ? check_noncircular+0x20/0x20 [ 48.479942] ? oom_unkillable_task+0x394/0x4c0 [ 48.484507] ? lock_downgrade+0x980/0x980 [ 48.488633] ? lock_release+0xa40/0xa40 [ 48.492582] ? do_try_to_free_pages+0xc53/0x1020 [ 48.497328] ? find_lock_task_mm+0x460/0x460 [ 48.501738] ? find_held_lock+0x35/0x1d0 [ 48.505807] ? out_of_memory+0xb3a/0x1220 [ 48.509950] ? lock_downgrade+0x980/0x980 [ 48.514095] ? lock_release+0xa40/0xa40 [ 48.518055] ? lock_acquire+0x1d5/0x580 [ 48.522020] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 48.526942] ? oom_evaluate_task+0x284/0x480 [ 48.531344] out_of_memory+0x86d/0x1220 [ 48.535324] ? oom_killer_disable+0x310/0x310 [ 48.539819] ? mutex_trylock+0x23a/0x2d0 [ 48.543873] ? __lock_is_held+0xb6/0x140 [ 48.547941] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 48.553401] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 48.558255] ? trace_hardirqs_on+0xd/0x10 [ 48.562410] ? warn_alloc+0x2b0/0x2b0 [ 48.566196] ? lock_downgrade+0x980/0x980 [ 48.570358] ? radix_tree_lookup_slot+0x99/0xe0 [ 48.575037] ? find_get_entry+0x53c/0x9e0 [ 48.579213] ? __lock_acquire+0x664/0x3e00 [ 48.583490] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 48.589385] ? __might_sleep+0x95/0x190 [ 48.593370] __alloc_pages_nodemask+0x9fb/0xd80 [ 48.598039] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 48.603048] ? add_to_page_cache_lru+0x510/0x510 [ 48.607806] ? check_noncircular+0x20/0x20 [ 48.612030] ? check_noncircular+0x20/0x20 [ 48.616266] ? __schedule+0x8f3/0x2060 [ 48.620157] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 48.624927] alloc_pages_current+0xb6/0x1e0 [ 48.629242] __page_cache_alloc+0x334/0x500 [ 48.633559] ? rcu_read_lock_held+0xa9/0xc0 [ 48.637876] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 48.645251] filemap_fault+0xefc/0x1c20 [ 48.649240] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 48.654432] ? __lock_page_or_retry+0x4f0/0x4f0 [ 48.659100] ? filemap_map_pages+0x942/0x15d0 [ 48.663605] ? find_get_entries_tag+0xeb0/0xeb0 [ 48.668270] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 48.673446] ? check_noncircular+0x20/0x20 [ 48.677677] ? print_irqtrace_events+0x270/0x270 [ 48.682433] ? print_irqtrace_events+0x270/0x270 [ 48.687168] ? print_irqtrace_events+0x270/0x270 [ 48.691947] ? lock_acquire+0x1d5/0x580 [ 48.695905] ? lock_acquire+0x1d5/0x580 [ 48.699867] ? ext4_filemap_fault+0x7a/0xad [ 48.704178] ? __lock_acquire+0x664/0x3e00 [ 48.708401] ? lock_release+0xa40/0xa40 [ 48.712363] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 48.718256] ? rcu_note_context_switch+0x710/0x710 [ 48.723196] ? __might_sleep+0x95/0x190 [ 48.727166] ? down_read+0x96/0x150 [ 48.730773] ? ext4_filemap_fault+0x7a/0xad [ 48.735075] ? __down_interruptible+0x6b0/0x6b0 [ 48.739754] ext4_filemap_fault+0x82/0xad [ 48.743895] __do_fault+0xeb/0x30f [ 48.747421] ? switch_mm_irqs_off+0x7cb/0x15f0 [ 48.751993] ? pte_offset_kernel+0xc7/0xc7 [ 48.756212] ? lock_release+0xa40/0xa40 [ 48.760169] ? compat_start_thread+0x80/0x80 [ 48.764559] ? do_raw_spin_trylock+0x190/0x190 [ 48.769130] ? _raw_spin_unlock_irq+0x27/0x70 [ 48.773612] ? check_noncircular+0x20/0x20 [ 48.777844] __handle_mm_fault+0x1d8f/0x3ce0 [ 48.782252] ? __pmd_alloc+0x4e0/0x4e0 [ 48.786139] ? find_held_lock+0x35/0x1d0 [ 48.790201] ? handle_mm_fault+0x248/0x8d0 [ 48.794418] ? lock_downgrade+0x980/0x980 [ 48.798562] handle_mm_fault+0x334/0x8d0 [ 48.802597] ? down_read_trylock+0xdb/0x170 [ 48.806892] ? __do_page_fault+0x32d/0xc90 [ 48.811107] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 48.815670] ? vmacache_find+0x5f/0x280 [ 48.819635] ? find_vma+0x30/0x150 [ 48.823170] __do_page_fault+0x5c9/0xc90 [ 48.827217] ? vfs_copy_file_range+0x940/0x940 [ 48.831798] ? mm_fault_error+0x2c0/0x2c0 [ 48.835935] ? avc_policy_seqno+0x9/0x20 [ 48.839989] ? exit_to_usermode_loop+0x8c/0x310 [ 48.844655] do_page_fault+0xee/0x720 [ 48.848434] ? trace_hardirqs_off+0xd/0x10 [ 48.852643] ? __do_page_fault+0xc90/0xc90 [ 48.856854] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 48.862402] ? fput+0xd2/0x140 [ 48.865586] ? retint_user+0x18/0x18 [ 48.869292] ? page_fault+0x36/0x60 [ 48.872911] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 48.877741] ? page_fault+0x36/0x60 [ 48.881357] page_fault+0x4c/0x60 [ 48.884788] RIP: 0033:0x7f4099d149d0 [ 48.888488] RSP: 002b:00007f40979e0d68 EFLAGS: 00010202 [ 48.893828] RAX: 0000000000000000 RBX: 00007f40979e0d88 RCX: 0000000000000004 [ 48.901080] RDX: 0000000000000000 RSI: 00007f409901350c RDI: 0000000000000210 [ 48.908334] RBP: 0000000000000004 R08: 000000000000003e R09: 00007f4099dd5100 [ 48.915597] R10: 3d7373616c637420 R11: 0000000000000000 R12: 0000000000000000 [ 48.922853] R13: 00007f40992165a3 R14: 0000000000000091 R15: 00007f409921562e [ 48.930197] Mem-Info: [ 48.933372] active_anon:1979 inactive_anon:63 isolated_anon:0 [ 48.933372] active_file:4 inactive_file:0 isolated_file:0 [ 48.933372] unevictable:0 dirty:0 writeback:0 unstable:0 [ 48.933372] slab_reclaimable:7246 slab_unreclaimable:82951 [ 48.933372] mapped:2 shmem:70 pagetables:293 bounce:0 [ 48.933372] free:19680 free_pcp:102 free_cma:0 [ 48.966111] Node 0 active_anon:7916kB inactive_anon:252kB active_file:28kB inactive_file:88kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 48.993350] 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 [ 49.020253] lowmem_reserve[]: 0 2870 6381 6381 [ 49.025460] Node 0 DMA32 free:36056kB min:30332kB low:37912kB high:45492kB active_anon:28kB inactive_anon:4kB active_file:20kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2942340kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:112kB local_pcp:112kB free_cma:0kB [ 49.053760] lowmem_reserve[]: 0 0 3510 3510 [ 49.058616] Node 0 Normal free:26756kB min:37084kB low:46352kB high:55620kB active_anon:7888kB inactive_anon:248kB active_file:52kB inactive_file:56kB unevictable:0kB writepending:0kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3072kB pagetables:1172kB bounce:0kB free_pcp:296kB local_pcp:120kB free_cma:0kB [ 49.087793] lowmem_reserve[]: 0 0 0 0 [ 49.092377] 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 [ 49.106818] Node 0 DMA32: 6*4kB (UM) 4*8kB (UM) 6*16kB (UM) 2*32kB (UM) 4*64kB (UM) 4*128kB (M) 5*256kB (UM) 4*512kB (UM) 3*1024kB (UM) 2*2048kB (M) 6*4096kB (M) = 36056kB [ 49.123226] Node 0 Normal: 279*4kB (ME) 203*8kB (UME) 159*16kB (ME) 101*32kB (UME) 63*64kB (M) 17*128kB (UM) 15*256kB (UM) 0*512kB 0*1024kB 0*2048kB 2*4096kB (M) = 26756kB [ 49.139406] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 49.148655] 99 total pagecache pages [ 49.153117] 0 pages in swap cache [ 49.156977] Swap cache stats: add 0, delete 0, find 0/0 [ 49.162780] Free swap = 0kB [ 49.166389] Total swap = 0kB [ 49.169818] 1965979 pages RAM [ 49.173469] 0 pages HighMem/MovableOnly [ 49.178336] 327760 pages reserved [ 49.181803] Unreclaimable slab info: [ 49.185524] Name Used Total [ 49.191075] hashtab_node 118KB 119KB [ 49.196450] ebitmap_node 382KB 385KB [ 49.201834] avtab_node 1012KB 1013KB [ 49.207214] TIPC 1KB 7KB [ 49.212593] SCTPv6 2KB 4KB [ 49.218724] DCCPv6 2KB 7KB [ 49.224115] DCCP 2KB 6KB [ 49.229511] fib6_nodes 0KB 4KB [ 49.234885] ip6_dst_cache 7KB 7KB [ 49.240275] RAWv6 9KB 19KB [ 49.245651] UDPv6 12KB 14KB [ 49.251039] TCPv6 2KB 5KB [ 49.256427] sd_ext_cdb 0KB 3KB [ 49.261800] scsi_sense_cache 81KB 148KB [ 49.267177] virtio_scsi_cmd 16KB 16KB [ 49.272554] sgpool-128 8KB 8KB [ 49.277912] sgpool-64 4KB 6KB [ 49.283278] sgpool-32 69KB 78KB [ 49.288652] sgpool-16 19KB 22KB [ 49.294041] sgpool-8 175KB 176KB [ 49.299416] cfq_io_cq 15KB 19KB [ 49.304864] cfq_queue 24KB 27KB [ 49.310231] mqueue_inode_cache 1KB 7KB [ 49.315690] nfs_commit_data 3KB 7KB [ 49.321063] nfs_write_data 34KB 37KB [ 49.326438] jbd2_inode 1KB 3KB [ 49.331806] ext4_system_zone 0KB 3KB [ 49.337181] bio-1 1KB 3KB [ 49.342563] rpc_buffers 17KB 19KB [ 49.347936] rpc_tasks 2KB 3KB [ 49.354103] UNIX 777KB 780KB [ 49.359483] tcp_bind_bucket 0KB 4KB [ 49.364855] ip_fib_trie 0KB 3KB [ 49.370218] ip_fib_alias 0KB 3KB [ 49.375589] ip_dst_cache 4KB 7KB [ 49.380964] RAW 5KB 7KB [ 49.386338] UDP 29KB 39KB [ 49.391695] TCP 7KB 15KB [ 49.397058] hugetlbfs_inode_cache 1KB 7KB [ 49.402776] eventpoll_pwq 9KB 11KB [ 49.408147] eventpoll_epi 17KB 23KB [ 49.413532] inotify_inode_mark 3KB 11KB [ 49.418983] request_queue 33KB 67KB [ 49.424352] blkdev_ioc 20KB 23KB [ 49.429722] bio-0 285KB 288KB [ 49.435107] biovec-(1<<(21-12)) 470KB 470KB [ 49.440651] biovec-64 102KB 110KB [ 49.446028] biovec-16 11KB 18KB [ 49.451400] bio_integrity_payload 0KB 4KB [ 49.457119] khugepaged_mm_slot 0KB 3KB [ 49.462581] uid_cache 0KB 3KB [ 49.467953] dmaengine-unmap-2 0KB 3KB [ 49.473331] audit_buffer 0KB 3KB [ 49.478688] skbuff_fclone_cache 138KB 142KB [ 49.484225] skbuff_head_cache 1792KB 1792KB [ 49.490396] configfs_dir_cache 0KB 4KB [ 49.495860] file_lock_cache 160KB 166KB [ 49.501494] file_lock_ctx 1KB 3KB [ 49.507249] fsnotify_mark_connector 2KB 3KB [ 49.513131] shmem_inode_cache 1046KB 1046KB [ 49.518478] task_delay_info 320KB 336KB [ 49.523826] sigqueue 366KB 370KB [ 49.529644] kernfs_node_cache 2285KB 2287KB [ 49.535079] mnt_cache 15KB 16KB [ 49.540426] filp 8293KB 8793KB [ 49.545781] names_cache 110763KB 110784KB [ 49.551133] avc_node 37KB 39KB [ 49.556487] selinux_file_security 414KB 488KB [ 49.562183] selinux_inode_security 1946KB 1948KB [ 49.567978] key_jar 3KB 7KB [ 49.573328] nsproxy 0KB 3KB [ 49.578677] vm_area_struct 18783KB 18806KB [ 49.584025] mm_struct 4556KB 4570KB [ 49.589375] fs_cache 428KB 432KB [ 49.594732] files_cache 1605KB 1612KB [ 49.600081] signal_cache 2560KB 2565KB [ 49.605429] sighand_cache 217KB 339KB [ 49.610783] task_struct 10927KB 10927KB [ 49.616153] cred_jar 2369KB 2376KB [ 49.621524] anon_vma_chain 7885KB 7898KB [ 49.627338] anon_vma 128KB 358KB [ 49.632701] pid 223KB 248KB [ 49.638051] Acpi-Operand 106KB 170KB [ 49.643403] Acpi-Namespace 19KB 23KB [ 49.648752] numa_policy 0KB 3KB [ 49.654102] debug_objects_cache 531KB 531KB [ 49.659622] trace_event_file 144KB 147KB [ 49.664974] ftrace_event_field 254KB 255KB [ 49.670408] pool_workqueue 24KB 28KB [ 49.675764] page->ptl 3130KB 3142KB [ 49.681125] kmalloc-262144 1032KB 1032KB [ 49.686473] kmalloc-131072 650KB 650KB [ 49.691858] kmalloc-65536 264KB 264KB [ 49.697242] kmalloc-32768 825KB 825KB [ 49.702593] kmalloc-16384 181KB 181KB [ 49.707951] kmalloc-8192 470KB 470KB [ 49.713298] kmalloc-4096 6591KB 6617KB [ 49.718654] kmalloc-2048 3244KB 3244KB [ 49.724024] kmalloc-1024 3666KB 3677KB [ 49.729374] kmalloc-512 2786KB 2786KB [ 49.734721] kmalloc-256 1897KB 2373KB [ 49.740069] kmalloc-128 409KB 531KB [ 49.745416] kmalloc-96 2063KB 2064KB [ 49.750774] kmalloc-64 2471KB 2472KB [ 49.756130] kmalloc-32 2393KB 2405KB [ 49.761930] kmalloc-192 911KB 912KB [ 49.767287] kmem_cache 101KB 105KB [ 49.772636] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 49.781228] [ 1813] 0 1813 5411 193 86016 0 -1000 udevd [ 49.789362] [ 3507] 0 3507 14298 173 114688 0 0 rsyslogd [ 49.797754] [ 3562] 0 3562 4725 50 86016 0 0 cron [ 49.805798] [ 3581] 0 3581 3736 44 69632 0 0 mcstransd [ 49.814277] [ 3609] 0 3609 12490 152 131072 0 -1000 sshd [ 49.822321] [ 3633] 0 3633 3694 41 77824 0 0 getty [ 49.830490] [ 3634] 0 3634 3694 41 77824 0 0 getty [ 49.838674] [ 3635] 0 3635 3694 41 77824 0 0 getty [ 49.846822] [ 3636] 0 3636 3694 40 73728 0 0 getty [ 49.854996] [ 3637] 0 3637 3694 42 73728 0 0 getty [ 49.863176] [ 3638] 0 3638 3694 39 73728 0 0 getty [ 49.871345] [ 3639] 0 3639 3649 40 73728 0 0 getty [ 49.879493] [ 3642] 0 3642 5674 454 86016 0 -1000 udevd [ 49.887674] [ 3643] 0 3643 5674 454 86016 0 -1000 udevd [ 49.895841] [ 3660] 0 3660 17821 198 180224 0 0 sshd [ 49.903907] [ 3662] 0 3662 280 1 32768 0 0 syzkaller422145 [ 49.912940] [ 3663] 0 3663 4375 0 32768 0 0 syzkaller422145 [ 49.921983] [ 3664] 0 3664 4375 0 32768 0 0 syzkaller422145 [ 49.931055] [ 3665] 0 3665 4375 0 32768 0 0 syzkaller422145 [ 49.940087] [ 3666] 0 3666 4375 0 32768 0 0 syzkaller422145 [ 49.949123] [ 3667] 0 3667 4375 0 32768 0 0 syzkaller422145 [ 49.958157] [ 3668] 0 3668 4375 0 32768 0 0 syzkaller422145 [ 49.967192] [ 3669] 0 3669 4375 0 32768 0 0 syzkaller422145 [ 49.976210] [ 3670] 0 3670 4375 0 32768 0 0 syzkaller422145 [ 49.985227] Out of memory: Kill process 3660 (sshd) score 0 or sacrifice child [ 49.992962] Killed process 3662 (syzkaller422145) total-vm:1120kB, anon-rss:4kB, file-rss:0kB, shmem-rss:0kB [ 50.006155] udevd invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=-1000 [ 50.019505] udevd cpuset=/ mems_allowed=0 [ 50.023722] CPU: 1 PID: 1813 Comm: udevd Not tainted 4.15.0-rc8+ #263 [ 50.030286] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.039625] Call Trace: [ 50.042206] dump_stack+0x194/0x257 [ 50.045826] ? arch_local_irq_restore+0x53/0x53 [ 50.050487] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 50.055679] dump_header+0x28c/0xe1e [ 50.059392] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 50.064578] ? pagefault_out_of_memory+0x152/0x152 [ 50.069491] ? check_noncircular+0x20/0x20 [ 50.073717] ? print_irqtrace_events+0x270/0x270 [ 50.078476] ? __lock_acquire+0x664/0x3e00 [ 50.082704] ? check_noncircular+0x20/0x20 [ 50.086942] ? print_irqtrace_events+0x270/0x270 [ 50.091695] ? check_noncircular+0x20/0x20 [ 50.095914] ? task_will_free_mem+0x252/0xaa0 [ 50.100408] ? print_irqtrace_events+0x270/0x270 [ 50.105162] ? ___ratelimit+0x30d/0x630 [ 50.109127] ? lock_downgrade+0x980/0x980 [ 50.113267] ? lock_release+0xa40/0xa40 [ 50.117237] ? mark_held_locks+0xaf/0x100 [ 50.121377] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 50.126471] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 50.131477] ? trace_hardirqs_on+0xd/0x10 [ 50.135618] ? ___ratelimit+0x95/0x630 [ 50.139494] ? idr_get_free_cmn+0xfd0/0xfd0 [ 50.143801] ? check_noncircular+0x20/0x20 [ 50.148019] ? find_held_lock+0x138/0x1d0 [ 50.152169] oom_kill_process+0x8b5/0x14a0 [ 50.156399] ? has_ns_capability_noaudit+0x163/0x2a0 [ 50.161578] ? check_noncircular+0x20/0x20 [ 50.165805] ? oom_evaluate_task+0x480/0x480 [ 50.170229] ? security_capable_noaudit+0x8b/0xc0 [ 50.175069] ? find_held_lock+0x35/0x1d0 [ 50.179134] ? check_noncircular+0x20/0x20 [ 50.183358] ? oom_unkillable_task+0x394/0x4c0 [ 50.187934] ? lock_downgrade+0x980/0x980 [ 50.192072] ? lock_release+0xa40/0xa40 [ 50.196055] ? find_lock_task_mm+0x460/0x460 [ 50.200468] ? find_held_lock+0x35/0x1d0 [ 50.204529] ? out_of_memory+0xb3a/0x1220 [ 50.208665] ? lock_downgrade+0x980/0x980 [ 50.212802] ? lock_release+0xa40/0xa40 [ 50.216760] ? lock_acquire+0x1d5/0x580 [ 50.220720] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 50.225654] ? oom_evaluate_task+0x284/0x480 [ 50.230055] out_of_memory+0x86d/0x1220 [ 50.234032] ? oom_killer_disable+0x310/0x310 [ 50.238512] ? mutex_trylock+0x23a/0x2d0 [ 50.242559] ? __lock_is_held+0xb6/0x140 [ 50.246619] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 50.252076] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 50.256925] ? trace_hardirqs_on+0xd/0x10 [ 50.261089] ? warn_alloc+0x2b0/0x2b0 [ 50.264877] ? lock_downgrade+0x980/0x980 [ 50.269030] ? radix_tree_lookup_slot+0x99/0xe0 [ 50.273709] ? find_get_entry+0x53c/0x9e0 [ 50.277877] ? __lock_acquire+0x664/0x3e00 [ 50.282152] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 50.288043] ? __might_sleep+0x95/0x190 [ 50.292011] __alloc_pages_nodemask+0x9fb/0xd80 [ 50.296765] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 50.301776] ? add_to_page_cache_lru+0x510/0x510 [ 50.306530] ? check_noncircular+0x20/0x20 [ 50.311010] ? check_noncircular+0x20/0x20 [ 50.315265] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 50.320069] alloc_pages_current+0xb6/0x1e0 [ 50.324387] __page_cache_alloc+0x334/0x500 [ 50.328699] ? rcu_read_lock_held+0xa9/0xc0 [ 50.333008] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 50.340356] filemap_fault+0xefc/0x1c20 [ 50.344301] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 50.349475] ? __lock_page_or_retry+0x4f0/0x4f0 [ 50.354124] ? filemap_map_pages+0x942/0x15d0 [ 50.358591] ? free_obj_work+0x690/0x690 [ 50.362634] ? find_get_entries_tag+0xeb0/0xeb0 [ 50.367292] ? check_noncircular+0x20/0x20 [ 50.371510] ? print_irqtrace_events+0x270/0x270 [ 50.376236] ? print_irqtrace_events+0x270/0x270 [ 50.380968] ? print_irqtrace_events+0x270/0x270 [ 50.385696] ? do_raw_spin_trylock+0x190/0x190 [ 50.390284] ? lock_acquire+0x1d5/0x580 [ 50.394226] ? lock_acquire+0x1d5/0x580 [ 50.398170] ? ext4_filemap_fault+0x7a/0xad [ 50.402470] ? __lock_acquire+0x664/0x3e00 [ 50.406689] ? lock_release+0xa40/0xa40 [ 50.410643] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 50.416508] ? rcu_note_context_switch+0x710/0x710 [ 50.421412] ? __might_sleep+0x95/0x190 [ 50.425360] ? down_read+0x96/0x150 [ 50.428964] ? ext4_filemap_fault+0x7a/0xad [ 50.433256] ? __down_interruptible+0x6b0/0x6b0 [ 50.437908] ext4_filemap_fault+0x82/0xad [ 50.442034] __do_fault+0xeb/0x30f [ 50.445547] ? pte_offset_kernel+0xc7/0xc7 [ 50.449755] ? do_raw_spin_trylock+0x190/0x190 [ 50.454311] ? check_noncircular+0x20/0x20 [ 50.458528] __handle_mm_fault+0x1d8f/0x3ce0 [ 50.462916] ? __pmd_alloc+0x4e0/0x4e0 [ 50.466781] ? find_held_lock+0x35/0x1d0 [ 50.470819] ? handle_mm_fault+0x248/0x8d0 [ 50.475031] ? lock_downgrade+0x980/0x980 [ 50.479184] handle_mm_fault+0x334/0x8d0 [ 50.483215] ? down_read_trylock+0xdb/0x170 [ 50.487514] ? __do_page_fault+0x32d/0xc90 [ 50.491720] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 50.496270] ? vmacache_find+0x5f/0x280 [ 50.500217] ? find_vma+0x30/0x150 [ 50.503730] __do_page_fault+0x5c9/0xc90 [ 50.507776] ? mm_fault_error+0x2c0/0x2c0 [ 50.511895] ? __fdget+0x18/0x20 [ 50.515250] do_page_fault+0xee/0x720 [ 50.519031] ? __do_page_fault+0xc90/0xc90 [ 50.523240] ? __sb_end_write+0xa0/0xd0 [ 50.527192] ? vfs_write+0x224/0x510 [ 50.530885] ? retint_user+0x18/0x18 [ 50.534580] ? page_fault+0x36/0x60 [ 50.538179] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 50.542998] ? page_fault+0x36/0x60 [ 50.546609] page_fault+0x4c/0x60 [ 50.550034] RIP: 0033:0x7f0f5c3d4cad [ 50.553730] RSP: 002b:00007ffe407695a8 EFLAGS: 00010206 [ 50.559068] RAX: 0000000000000000 RBX: 00007ffe40769650 RCX: 00007f0f5c37c210 [ 50.566307] RDX: 0000000000000008 RSI: 00000000004203c8 RDI: 00007ffe40769678 [ 50.573546] RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000001 [ 50.580785] R10: 0000000000000008 R11: 00007f0f5c3f5e90 R12: 00007ffe40769670 [ 50.588030] R13: 00000000000000a2 R14: 0000000000f66a10 R15: 0000000000f5c030 [ 50.595387] Mem-Info: [ 50.598602] active_anon:1979 inactive_anon:63 isolated_anon:0 [ 50.598602] active_file:14 inactive_file:15 isolated_file:0 [ 50.598602] unevictable:0 dirty:0 writeback:0 unstable:0 [ 50.598602] slab_reclaimable:7246 slab_unreclaimable:82951 [ 50.598602] mapped:2 shmem:70 pagetables:293 bounce:0 [ 50.598602] free:19680 free_pcp:121 free_cma:0 [ 50.630763] Node 0 active_anon:7916kB inactive_anon:252kB active_file:56kB inactive_file:60kB 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 [ 50.657264] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 50.683591] lowmem_reserve[]: 0 2870 6381 6381 [ 50.688243] Node 0 DMA32 free:36056kB min:30332kB low:37912kB high:45492kB active_anon:28kB inactive_anon:4kB active_file:4kB inactive_file:4kB unevictable:0kB writepending:0kB present:3129332kB managed:2942340kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:112kB local_pcp:112kB free_cma:0kB [ 50.715866] lowmem_reserve[]: 0 0 3510 3510 [ 50.720425] Node 0 Normal free:26788kB min:37084kB low:46352kB high:55620kB active_anon:7844kB inactive_anon:248kB active_file:24kB inactive_file:84kB unevictable:0kB writepending:0kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3040kB pagetables:1156kB bounce:0kB free_pcp:372kB local_pcp:252kB free_cma:0kB [ 50.750777] lowmem_reserve[]: 0 0 0 0 [ 50.754634] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 50.768456] Node 0 DMA32: 6*4kB (UM) 4*8kB (UM) 6*16kB (UM) 2*32kB (UM) 4*64kB (UM) 4*128kB (M) 5*256kB (UM) 4*512kB (UM) 3*1024kB (UM) 2*2048kB (M) 6*4096kB (M) = 36056kB [ 50.784063] Node 0 Normal: 279*4kB (ME) 203*8kB (UME) 159*16kB (ME) 102*32kB (UME) 63*64kB (M) 17*128kB (UM) 15*256kB (UM) 0*512kB 0*1024kB 0*2048kB 2*4096kB (M) = 26788kB [ 50.799619] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 50.808216] 99 total pagecache pages [ 50.811946] 0 pages in swap cache [ 50.815438] Swap cache stats: add 0, delete 0, find 0/0 [ 50.820799] Free swap = 0kB [ 50.823817] Total swap = 0kB [ 50.826846] 1965979 pages RAM [ 50.829963] 0 pages HighMem/MovableOnly [ 50.833957] 327760 pages reserved [ 50.837407] Unreclaimable slab info: [ 50.841124] Name Used Total [ 50.846764] hashtab_node 118KB 119KB [ 50.852141] ebitmap_node 382KB 385KB [ 50.857523] avtab_node 1012KB 1013KB [ 50.862910] TIPC 1KB 7KB [ 50.868299] SCTPv6 2KB 4KB [ 50.873687] DCCPv6 2KB 7KB [ 50.879862] DCCP 2KB 6KB [ 50.885276] fib6_nodes 0KB 4KB [ 50.890647] ip6_dst_cache 7KB 7KB [ 50.896038] RAWv6 9KB 19KB [ 50.901428] UDPv6 12KB 14KB [ 50.906814] TCPv6 2KB 5KB [ 50.912214] sd_ext_cdb 0KB 3KB [ 50.917595] scsi_sense_cache 81KB 148KB [ 50.922972] virtio_scsi_cmd 16KB 16KB [ 50.928357] sgpool-128 8KB 8KB [ 50.933740] sgpool-64 4KB 6KB [ 50.939116] sgpool-32 69KB 78KB [ 50.944525] sgpool-16 19KB 22KB [ 50.950632] sgpool-8 175KB 176KB [ 50.956773] cfq_io_cq 15KB 19KB [ 50.962158] cfq_queue 24KB 27KB [ 50.967536] mqueue_inode_cache 1KB 7KB [ 50.973029] nfs_commit_data 3KB 7KB [ 50.978405] nfs_write_data 34KB 37KB [ 50.983786] jbd2_inode 1KB 3KB [ 50.989168] ext4_system_zone 0KB 3KB [ 50.994558] bio-1 1KB 3KB [ 50.999948] rpc_buffers 17KB 19KB [ 51.005328] rpc_tasks 2KB 3KB [ 51.012255] UNIX 777KB 780KB [ 51.017643] tcp_bind_bucket 0KB 4KB [ 51.023047] ip_fib_trie 0KB 3KB [ 51.028439] ip_fib_alias 0KB 3KB [ 51.033815] ip_dst_cache 4KB 7KB [ 51.039245] RAW 5KB 7KB [ 51.044622] UDP 29KB 39KB [ 51.050005] TCP 7KB 15KB [ 51.055405] hugetlbfs_inode_cache 1KB 7KB [ 51.061132] eventpoll_pwq 9KB 11KB [ 51.066510] eventpoll_epi 17KB 23KB [ 51.071892] inotify_inode_mark 3KB 11KB [ 51.077392] request_queue 33KB 67KB [ 51.083512] blkdev_ioc 20KB 23KB [ 51.088902] bio-0 284KB 288KB [ 51.094282] biovec-(1<<(21-12)) 470KB 470KB [ 51.099848] biovec-64 102KB 110KB [ 51.105227] biovec-16 11KB 18KB [ 51.110620] bio_integrity_payload 0KB 4KB [ 51.116346] khugepaged_mm_slot 0KB 3KB [ 51.121817] uid_cache 0KB 3KB [ 51.127196] dmaengine-unmap-2 0KB 3KB [ 51.132580] audit_buffer 0KB 3KB [ 51.137957] skbuff_fclone_cache 138KB 142KB [ 51.144051] skbuff_head_cache 1792KB 1792KB [ 51.149428] configfs_dir_cache 0KB 4KB [ 51.154901] file_lock_cache 160KB 166KB [ 51.160266] file_lock_ctx 1KB 3KB [ 51.165637] fsnotify_mark_connector 2KB 3KB [ 51.171531] shmem_inode_cache 1046KB 1046KB [ 51.176905] task_delay_info 320KB 336KB [ 51.182278] sigqueue 369KB 370KB [ 51.187649] kernfs_node_cache 2285KB 2287KB [ 51.193036] mnt_cache 15KB 16KB [ 51.198417] filp 8293KB 8793KB [ 51.203808] names_cache 110763KB 110784KB [ 51.209204] avc_node 37KB 39KB [ 51.214587] selinux_file_security 414KB 488KB [ 51.220318] selinux_inode_security 1946KB 1948KB [ 51.226136] key_jar 3KB 7KB [ 51.232037] nsproxy 0KB 3KB [ 51.237418] vm_area_struct 18783KB 18806KB [ 51.242801] mm_struct 4556KB 4570KB [ 51.248188] fs_cache 428KB 432KB [ 51.253567] files_cache 1605KB 1612KB [ 51.258946] signal_cache 2560KB 2565KB [ 51.264324] sighand_cache 217KB 339KB [ 51.269700] task_struct 10927KB 10927KB [ 51.275496] cred_jar 2369KB 2376KB [ 51.280889] anon_vma_chain 7885KB 7898KB [ 51.286281] anon_vma 128KB 358KB [ 51.291643] pid 223KB 248KB [ 51.297038] Acpi-Operand 106KB 170KB [ 51.302416] Acpi-Namespace 19KB 23KB [ 51.307793] numa_policy 0KB 3KB [ 51.313166] debug_objects_cache 531KB 531KB [ 51.318714] trace_event_file 144KB 147KB [ 51.324095] ftrace_event_field 254KB 255KB [ 51.329557] pool_workqueue 24KB 28KB [ 51.334937] page->ptl 3130KB 3142KB [ 51.340340] kmalloc-262144 1032KB 1032KB [ 51.345702] kmalloc-131072 650KB 650KB [ 51.351075] kmalloc-65536 264KB 264KB [ 51.356455] kmalloc-32768 825KB 825KB [ 51.361832] kmalloc-16384 181KB 181KB [ 51.367204] kmalloc-8192 470KB 470KB [ 51.372671] kmalloc-4096 6591KB 6617KB [ 51.378047] kmalloc-2048 3244KB 3244KB [ 51.383425] kmalloc-1024 3666KB 3677KB [ 51.388803] kmalloc-512 2786KB 2786KB [ 51.394183] kmalloc-256 1896KB 2373KB [ 51.399561] kmalloc-128 409KB 531KB [ 51.404953] kmalloc-96 2063KB 2064KB [ 51.411147] kmalloc-64 2471KB 2472KB [ 51.416518] kmalloc-32 2393KB 2405KB [ 51.421892] kmalloc-192 911KB 912KB [ 51.427261] kmem_cache 101KB 105KB [ 51.432631] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 51.441244] [ 1813] 0 1813 5411 193 86016 0 -1000 udevd [ 51.449423] [ 3507] 0 3507 14298 173 114688 0 0 rsyslogd [ 51.457834] [ 3562] 0 3562 4725 50 86016 0 0 cron [ 51.465909] [ 3581] 0 3581 3736 44 69632 0 0 mcstransd [ 51.474414] [ 3609] 0 3609 12490 152 131072 0 -1000 sshd [ 51.482492] [ 3633] 0 3633 3694 41 77824 0 0 getty [ 51.490651] [ 3634] 0 3634 3694 41 77824 0 0 getty [ 51.498815] [ 3635] 0 3635 3694 41 77824 0 0 getty [ 51.506974] [ 3636] 0 3636 3694 40 73728 0 0 getty [ 51.515145] [ 3637] 0 3637 3694 42 73728 0 0 getty [ 51.523314] [ 3638] 0 3638 3694 39 73728 0 0 getty [ 51.532432] [ 3639] 0 3639 3649 40 73728 0 0 getty [ 51.540607] [ 3642] 0 3642 5674 454 86016 0 -1000 udevd [ 51.548799] [ 3643] 0 3643 5674 454 86016 0 -1000 udevd [ 51.556965] [ 3660] 0 3660 17821 198 180224 0 0 sshd [ 51.565048] [ 3663] 0 3663 4375 0 32768 0 0 syzkaller422145 [ 51.574091] [ 3664] 0 3664 4375 0 32768 0 0 syzkaller422145 [ 51.583134] [ 3665] 0 3665 4375 0 32768 0 0 syzkaller422145 [ 51.592170] [ 3666] 0 3666 4375 0 32768 0 0 syzkaller422145 [ 51.601205] [ 3667] 0 3667 4375 0 32768 0 0 syzkaller422145 [ 51.610267] [ 3668] 0 3668 4375 0 32768 0 0 syzkaller422145 [ 51.619305] [ 3669] 0 3669 4375 0 32768 0 0 syzkaller422145 [ 51.628343] [ 3670] 0 3670 4375 0 32768 0 0 syzkaller422145 [ 51.637375] Out of memory: Kill process 3660 (sshd) score 0 or sacrifice child [ 51.645566] Killed process 3660 (sshd) total-vm:71284kB, anon-rss:784kB, file-rss:4kB, shmem-rss:4kB [ 51.657654] oom_reaper: reaped process 3660 (sshd), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB Connection to 10.128.15.242 closed by remote host. [