[....] Starting enhanced syslogd: rsyslogd[ 13.142351] audit: type=1400 audit(1516126163.270:5): avc: denied { syslog } for pid=3502 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: [ 17.928878] audit: type=1400 audit(1516126168.056:6): avc: denied { map } for pid=3641 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 '10.128.15.234' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program [ 24.144720] audit: type=1400 audit(1516126174.272:7): avc: denied { map } for pid=3655 comm="syzkaller224616" path="/root/syzkaller224616990" 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 [ 24.190100] audit: type=1400 audit(1516126174.278:8): avc: denied { map_create } for pid=3661 comm="syzkaller224616" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=bpf permissive=1 [ 30.339840] syzkaller224616 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 30.352366] syzkaller224616 cpuset=/ mems_allowed=0 [ 30.357589] CPU: 1 PID: 3657 Comm: syzkaller224616 Not tainted 4.15.0-rc8+ #173 [ 30.365022] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.374358] Call Trace: [ 30.376929] dump_stack+0x194/0x257 [ 30.380537] ? arch_local_irq_restore+0x53/0x53 [ 30.385191] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 30.390368] dump_header+0x28c/0xe1e [ 30.394063] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 30.399231] ? pagefault_out_of_memory+0x152/0x152 [ 30.404135] ? print_irqtrace_events+0x270/0x270 [ 30.408869] ? __lock_acquire+0x664/0x3e00 [ 30.413080] ? check_noncircular+0x20/0x20 [ 30.417302] ? check_noncircular+0x20/0x20 [ 30.421514] ? task_will_free_mem+0x252/0xaa0 [ 30.425988] ? print_irqtrace_events+0x270/0x270 [ 30.430724] ? ___ratelimit+0x30d/0x630 [ 30.434669] ? lock_downgrade+0x980/0x980 [ 30.438792] ? lock_release+0xa40/0xa40 [ 30.442741] ? mark_held_locks+0xaf/0x100 [ 30.446862] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 30.451946] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 30.456940] ? trace_hardirqs_on+0xd/0x10 [ 30.461061] ? ___ratelimit+0x95/0x630 [ 30.464921] ? idr_get_free_cmn+0xfd0/0xfd0 [ 30.469213] ? check_noncircular+0x20/0x20 [ 30.473415] ? find_held_lock+0x138/0x1d0 [ 30.477541] oom_kill_process+0x8b5/0x14a0 [ 30.481751] ? has_ns_capability_noaudit+0x163/0x2a0 [ 30.486834] ? lock_downgrade+0x980/0x980 [ 30.490960] ? oom_evaluate_task+0x480/0x480 [ 30.495350] ? security_capable_noaudit+0x8b/0xc0 [ 30.500169] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 30.505242] ? has_capability+0x30/0x30 [ 30.509188] ? do_raw_spin_trylock+0x190/0x190 [ 30.513742] ? check_noncircular+0x20/0x20 [ 30.517954] ? has_capability_noaudit+0x24/0x30 [ 30.522595] ? oom_badness+0xd1/0x980 [ 30.526365] ? lock_release+0xa40/0xa40 [ 30.530313] ? do_try_to_free_pages+0xc53/0x1020 [ 30.535049] ? find_lock_task_mm+0x460/0x460 [ 30.539434] ? find_held_lock+0x35/0x1d0 [ 30.543481] ? out_of_memory+0xb3a/0x1220 [ 30.547616] ? lock_downgrade+0x980/0x980 [ 30.551739] ? lock_release+0xa40/0xa40 [ 30.555691] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 30.560604] ? oom_evaluate_task+0x284/0x480 [ 30.564988] out_of_memory+0x86d/0x1220 [ 30.568942] ? oom_killer_disable+0x310/0x310 [ 30.573409] ? mutex_trylock+0x23a/0x2d0 [ 30.577444] ? __lock_is_held+0xb6/0x140 [ 30.581477] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 30.586910] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 30.591751] ? warn_alloc+0x2b0/0x2b0 [ 30.595522] ? check_noncircular+0x20/0x20 [ 30.599730] ? check_preempt_wakeup+0x426/0xb20 [ 30.604373] ? print_irqtrace_events+0x270/0x270 [ 30.609108] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 30.614278] ? lock_acquire+0x1d5/0x580 [ 30.618221] ? lock_acquire+0x1d5/0x580 [ 30.622171] ? __lock_acquire+0x664/0x3e00 [ 30.626390] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 30.632255] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 30.637432] ? __lock_is_held+0xb6/0x140 [ 30.641475] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 30.647340] ? __might_sleep+0x95/0x190 [ 30.651289] __alloc_pages_nodemask+0x9fb/0xd80 [ 30.655929] ? lock_release+0xa40/0xa40 [ 30.659878] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 30.664873] ? pcpu_chunk_refresh_hint+0x425/0x570 [ 30.669776] ? print_irqtrace_events+0x270/0x270 [ 30.674509] ? __lock_is_held+0xb6/0x140 [ 30.678549] ? find_next_bit+0x27/0x30 [ 30.682413] pcpu_populate_chunk+0x1b3/0x880 [ 30.686803] pcpu_alloc+0x978/0x10e0 [ 30.690498] ? pcpu_free_area+0xa00/0xa00 [ 30.694621] ? vmap_page_range_noflush+0x523/0x720 [ 30.699544] ? map_vm_area+0x9e/0xd0 [ 30.703234] ? __vmalloc_node_range+0x37a/0x650 [ 30.707970] ? array_map_alloc+0x351/0xa00 [ 30.712178] ? __vmalloc_node_flags_caller+0x50/0x60 [ 30.717258] __alloc_percpu_gfp+0x27/0x30 [ 30.721395] array_map_alloc+0x778/0xa00 [ 30.725436] SyS_bpf+0x7f8/0x4400 [ 30.728868] ? bpf_prog_get+0x20/0x20 [ 30.732642] ? __lock_acquire+0x664/0x3e00 [ 30.736853] ? perf_event_fork+0x30/0x30 [ 30.740895] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 30.746059] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 30.751231] ? vma_wants_writenotify+0x51/0x3b0 [ 30.755878] ? vma_wants_writenotify+0x3b0/0x3b0 [ 30.760611] ? vma_link+0xe9/0x170 [ 30.764125] ? mmap_region+0x52e/0x15a0 [ 30.768086] ? find_held_lock+0x35/0x1d0 [ 30.772117] ? check_noncircular+0x20/0x20 [ 30.776331] ? __handle_mm_fault+0x80e/0x3ce0 [ 30.780800] ? check_noncircular+0x20/0x20 [ 30.785007] ? __pmd_alloc+0x4e0/0x4e0 [ 30.788878] ? find_held_lock+0x35/0x1d0 [ 30.792917] ? handle_mm_fault+0x248/0x8d0 [ 30.797124] ? find_held_lock+0x35/0x1d0 [ 30.801163] ? __do_page_fault+0x5f7/0xc90 [ 30.805370] ? lock_downgrade+0x980/0x980 [ 30.809497] ? handle_mm_fault+0x410/0x8d0 [ 30.813702] ? down_read_trylock+0xdb/0x170 [ 30.817993] ? __do_page_fault+0x32d/0xc90 [ 30.822206] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 30.826774] ? vmacache_find+0x5f/0x280 [ 30.830721] ? vmacache_update+0xfe/0x130 [ 30.834846] ? up_read+0x1a/0x40 [ 30.838199] ? do_fast_syscall_32+0x156/0xf9d [ 30.842666] ? bpf_prog_get+0x20/0x20 [ 30.846437] do_fast_syscall_32+0x3ee/0xf9d [ 30.850735] ? do_int80_syscall_32+0x9d0/0x9d0 [ 30.855290] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 30.860032] ? syscall_return_slowpath+0x2ad/0x550 [ 30.864932] ? prepare_exit_to_usermode+0x340/0x340 [ 30.869918] ? retint_user+0x18/0x18 [ 30.873607] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 30.878424] entry_SYSENTER_compat+0x54/0x63 [ 30.882801] RIP: 0023:0xf7f5ac79 [ 30.886136] RSP: 002b:00000000ffbe874c EFLAGS: 00000282 ORIG_RAX: 0000000000000165 [ 30.893814] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000020c47fec [ 30.901053] RDX: 000000000000002c RSI: 00000000080ea00c RDI: 000000000000003f [ 30.908299] RBP: 00000000ffbe8798 R08: 0000000000000000 R09: 0000000000000000 [ 30.915541] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 30.922784] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 30.930180] Mem-Info: [ 30.933587] active_anon:7888 inactive_anon:63 isolated_anon:0 [ 30.933587] active_file:12 inactive_file:13 isolated_file:0 [ 30.933587] unevictable:0 dirty:1 writeback:0 unstable:0 [ 30.933587] slab_reclaimable:7273 slab_unreclaimable:83111 [ 30.933587] mapped:3 shmem:70 pagetables:333 bounce:0 [ 30.933587] free:24101 free_pcp:209 free_cma:0 [ 30.965734] Node 0 active_anon:31552kB inactive_anon:252kB active_file:48kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:12kB dirty:4kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 16384kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 30.992730] 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 [ 31.018865] lowmem_reserve[]: 0 2870 6381 6381 [ 31.023463] Node 0 DMA32 free:43964kB min:30332kB low:37912kB high:45492kB active_anon:24kB inactive_anon:0kB 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 [ 31.050711] lowmem_reserve[]: 0 0 3510 3510 [ 31.055050] Node 0 Normal free:36532kB min:37084kB low:46352kB high:55620kB active_anon:31528kB inactive_anon:252kB active_file:40kB inactive_file:52kB unevictable:0kB writepending:4kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3104kB pagetables:1332kB bounce:0kB free_pcp:836kB local_pcp:180kB free_cma:0kB [ 31.084487] lowmem_reserve[]: 0 0 0 0 [ 31.089303] 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 [ 31.102959] Node 0 DMA32: 7*4kB (UME) 4*8kB (UME) 6*16kB (UME) 3*32kB (ME) 5*64kB (UME) 5*128kB (ME) 5*256kB (ME) 5*512kB (UME) 4*1024kB (UME) 3*2048kB (ME) 7*4096kB (M) = 43964kB [ 31.119255] Node 0 Normal: 583*4kB (UMH) 428*8kB (UMH) 235*16kB (MH) 101*32kB (MH) 40*64kB (M) 54*128kB (UMH) 34*256kB (UMH) 9*512kB (UM) 1*1024kB (H) 0*2048kB 0*4096kB = 36556kB [ 31.135430] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 31.145005] 95 total pagecache pages [ 31.148754] 0 pages in swap cache [ 31.152212] Swap cache stats: add 0, delete 0, find 0/0 [ 31.157573] Free swap = 0kB [ 31.160599] Total swap = 0kB [ 31.163617] 1965979 pages RAM [ 31.166721] 0 pages HighMem/MovableOnly [ 31.170682] 327760 pages reserved [ 31.174208] Unreclaimable slab info: [ 31.178039] Name Used Total [ 31.183637] hashtab_node 118KB 119KB [ 31.189041] ebitmap_node 382KB 385KB [ 31.194405] avtab_node 1012KB 1013KB [ 31.199769] TIPC 1KB 7KB [ 31.205271] SCTPv6 2KB 4KB [ 31.210640] DCCPv6 2KB 7KB [ 31.216108] DCCP 2KB 6KB [ 31.221487] fib6_nodes 0KB 4KB [ 31.226909] ip6_dst_cache 7KB 11KB [ 31.232328] RAWv6 9KB 19KB [ 31.237695] UDPv6 12KB 14KB [ 31.243066] TCPv6 2KB 5KB [ 31.248435] sd_ext_cdb 0KB 3KB [ 31.253791] scsi_sense_cache 73KB 136KB [ 31.259164] virtio_scsi_cmd 16KB 16KB [ 31.264530] sgpool-128 8KB 8KB [ 31.269889] sgpool-64 4KB 6KB [ 31.275261] sgpool-32 63KB 63KB [ 31.280628] sgpool-16 30KB 30KB [ 31.285987] sgpool-8 150KB 161KB [ 31.291372] cfq_io_cq 17KB 19KB [ 31.296729] cfq_queue 23KB 27KB [ 31.302101] mqueue_inode_cache 1KB 7KB [ 31.307555] nfs_commit_data 3KB 7KB [ 31.312928] nfs_write_data 34KB 37KB [ 31.318314] jbd2_inode 1KB 3KB [ 31.323677] ext4_system_zone 0KB 3KB [ 31.329059] bio-1 1KB 3KB [ 31.334426] rpc_buffers 17KB 19KB [ 31.339792] rpc_tasks 2KB 3KB [ 31.345166] UNIX 773KB 777KB [ 31.350532] tcp_bind_bucket 0KB 4KB [ 31.355891] ip_fib_trie 0KB 3KB [ 31.361262] ip_fib_alias 0KB 3KB [ 31.366623] ip_dst_cache 4KB 7KB [ 31.371982] RAW 5KB 7KB [ 31.377355] UDP 29KB 31KB [ 31.382708] request_sock_TCP 0KB 3KB [ 31.388078] TCP 7KB 7KB [ 31.393453] hugetlbfs_inode_cache 1KB 7KB [ 31.399176] eventpoll_pwq 10KB 15KB [ 31.404537] eventpoll_epi 19KB 27KB [ 31.409897] inotify_inode_mark 3KB 7KB [ 31.415356] request_queue 53KB 135KB [ 31.420714] blkdev_ioc 24KB 27KB [ 31.426081] bio-0 270KB 270KB [ 31.431447] biovec-(1<<(21-12)) 404KB 404KB [ 31.436989] biovec-64 94KB 94KB [ 31.442369] biovec-16 10KB 15KB [ 31.447734] bio_integrity_payload 0KB 4KB [ 31.453437] khugepaged_mm_slot 0KB 3KB [ 31.458898] uid_cache 0KB 3KB [ 31.464273] dmaengine-unmap-2 0KB 3KB [ 31.469637] audit_buffer 0KB 3KB [ 31.475037] skbuff_fclone_cache 134KB 135KB [ 31.480575] skbuff_head_cache 1720KB 1721KB [ 31.485929] configfs_dir_cache 0KB 4KB [ 31.491380] file_lock_cache 161KB 162KB [ 31.496753] file_lock_ctx 1KB 3KB [ 31.502132] fsnotify_mark_connector 2KB 3KB [ 31.508036] shmem_inode_cache 1046KB 1050KB [ 31.513404] task_delay_info 324KB 347KB [ 31.518783] sigqueue 364KB 370KB [ 31.524162] kernfs_node_cache 2285KB 2291KB [ 31.529524] mnt_cache 15KB 16KB [ 31.534893] filp 8458KB 8898KB [ 31.540285] names_cache 111001KB 111039KB [ 31.545652] avc_node 38KB 43KB [ 31.551036] selinux_file_security 432KB 492KB [ 31.556746] selinux_inode_security 1950KB 1952KB [ 31.562550] key_jar 3KB 7KB [ 31.567913] nsproxy 0KB 3KB [ 31.573285] vm_area_struct 18665KB 18670KB [ 31.578664] mm_struct 4521KB 4523KB [ 31.584045] fs_cache 427KB 432KB [ 31.589410] files_cache 1593KB 1597KB [ 31.594781] signal_cache 2542KB 2551KB [ 31.600180] sighand_cache 238KB 346KB [ 31.605549] task_struct 10847KB 10847KB [ 31.610922] cred_jar 2356KB 2360KB [ 31.616299] anon_vma_chain 7832KB 7835KB [ 31.621667] anon_vma 160KB 346KB [ 31.627043] pid 221KB 248KB [ 31.632412] Acpi-Operand 106KB 166KB [ 31.637769] Acpi-ParseExt 0KB 3KB [ 31.643149] Acpi-Parse 0KB 7KB [ 31.648517] Acpi-State 0KB 11KB [ 31.653873] Acpi-Namespace 19KB 23KB [ 31.659250] numa_policy 0KB 3KB [ 31.664615] debug_objects_cache 546KB 547KB [ 31.670166] trace_event_file 144KB 147KB [ 31.675535] ftrace_event_field 254KB 255KB [ 31.680992] pool_workqueue 24KB 28KB [ 31.686376] page->ptl 3102KB 3103KB [ 31.691763] kmalloc-262144 1032KB 1032KB [ 31.697132] kmalloc-131072 650KB 650KB [ 31.702502] kmalloc-65536 264KB 264KB [ 31.707860] kmalloc-32768 825KB 825KB [ 31.713307] kmalloc-16384 181KB 181KB [ 31.718675] kmalloc-8192 470KB 470KB [ 31.724045] kmalloc-4096 6940KB 6978KB [ 31.729425] kmalloc-2048 3247KB 3251KB [ 31.734795] kmalloc-1024 3528KB 3528KB [ 31.740173] kmalloc-512 2760KB 2763KB [ 31.745544] kmalloc-256 1995KB 2486KB [ 31.750918] kmalloc-128 408KB 527KB [ 31.756298] kmalloc-96 2048KB 2048KB [ 31.761664] kmalloc-64 2456KB 2456KB [ 31.767036] kmalloc-32 2405KB 2405KB [ 31.772455] kmalloc-192 908KB 908KB [ 31.777816] kmem_cache 101KB 105KB [ 31.783187] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 31.791855] [ 1814] 0 1814 5366 168 86016 0 -1000 udevd [ 31.800077] [ 3351] 0 3351 2493 574 57344 0 0 dhclient [ 31.808488] [ 3502] 0 3502 14298 173 118784 0 0 rsyslogd [ 31.816908] [ 3554] 0 3554 4725 50 86016 0 0 cron [ 31.824989] [ 3575] 0 3575 3735 44 65536 0 0 mcstransd [ 31.833496] [ 3585] 0 3585 12927 1228 135168 0 0 restorecond [ 31.842179] [ 3599] 0 3599 12490 152 131072 0 -1000 sshd [ 31.850262] [ 3627] 0 3627 3694 41 73728 0 0 getty [ 31.858442] [ 3628] 0 3628 3694 39 77824 0 0 getty [ 31.866625] [ 3629] 0 3629 3694 42 77824 0 0 getty [ 31.874795] [ 3630] 0 3630 3694 42 77824 0 0 getty [ 31.882981] [ 3631] 0 3631 3694 40 77824 0 0 getty [ 31.891155] [ 3632] 0 3632 3694 40 77824 0 0 getty [ 31.899304] [ 3633] 0 3633 3649 39 77824 0 0 getty [ 31.907637] [ 3635] 0 3635 5679 455 86016 0 -1000 udevd [ 31.915814] [ 3636] 0 3636 5679 455 86016 0 -1000 udevd [ 31.923982] [ 3652] 0 3652 17821 196 180224 0 0 sshd [ 31.932074] [ 3655] 0 3655 237 1 24576 0 0 syzkaller224616 [ 31.941094] [ 3656] 0 3656 4332 521 28672 0 0 syzkaller224616 [ 31.950127] [ 3657] 0 3657 4332 521 28672 0 0 syzkaller224616 [ 31.959146] [ 3658] 0 3658 4332 521 28672 0 0 syzkaller224616 [ 31.968184] [ 3659] 0 3659 4332 521 28672 0 0 syzkaller224616 [ 31.977224] [ 3660] 0 3660 4332 521 28672 0 0 syzkaller224616 [ 31.986256] [ 3661] 0 3661 4332 521 28672 0 0 syzkaller224616 [ 31.995277] [ 3662] 0 3662 4332 521 28672 0 0 syzkaller224616 [ 32.004310] [ 3663] 0 3663 4332 521 28672 0 0 syzkaller224616 [ 32.013326] Out of memory: Kill process 3585 (restorecond) score 0 or sacrifice child [ 32.021742] Killed process 3585 (restorecond) total-vm:51708kB, anon-rss:4924kB, file-rss:0kB, shmem-rss:0kB [ 32.040726] syzkaller224616 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 32.053201] syzkaller224616 cpuset=/ mems_allowed=0 [ 32.058326] CPU: 0 PID: 3659 Comm: syzkaller224616 Not tainted 4.15.0-rc8+ #173 [ 32.065771] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.075104] Call Trace: [ 32.077669] dump_stack+0x194/0x257 [ 32.081272] ? arch_local_irq_restore+0x53/0x53 [ 32.085917] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 32.091084] dump_header+0x28c/0xe1e [ 32.094776] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 32.099935] ? print_irqtrace_events+0x270/0x270 [ 32.104665] ? pagefault_out_of_memory+0x152/0x152 [ 32.109576] ? check_noncircular+0x20/0x20 [ 32.113789] ? print_irqtrace_events+0x270/0x270 [ 32.118522] ? __lock_acquire+0x664/0x3e00 [ 32.122733] ? check_noncircular+0x20/0x20 [ 32.126947] ? find_held_lock+0x35/0x1d0 [ 32.130987] ? check_noncircular+0x20/0x20 [ 32.135192] ? task_will_free_mem+0x252/0xaa0 [ 32.139666] ? print_irqtrace_events+0x270/0x270 [ 32.144400] ? ___ratelimit+0x30d/0x630 [ 32.148345] ? lock_downgrade+0x980/0x980 [ 32.152467] ? lock_release+0xa40/0xa40 [ 32.156416] ? mark_held_locks+0xaf/0x100 [ 32.160539] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 32.165619] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 32.170609] ? trace_hardirqs_on+0xd/0x10 [ 32.174740] ? ___ratelimit+0x95/0x630 [ 32.178606] ? idr_get_free_cmn+0xfd0/0xfd0 [ 32.182901] ? check_noncircular+0x20/0x20 [ 32.187105] ? find_held_lock+0x138/0x1d0 [ 32.191230] oom_kill_process+0x8b5/0x14a0 [ 32.195439] ? has_ns_capability_noaudit+0x163/0x2a0 [ 32.200513] ? lock_downgrade+0x980/0x980 [ 32.204641] ? oom_evaluate_task+0x480/0x480 [ 32.209042] ? security_capable_noaudit+0x8b/0xc0 [ 32.213862] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 32.218936] ? has_capability+0x30/0x30 [ 32.222881] ? do_raw_spin_trylock+0x190/0x190 [ 32.227435] ? check_noncircular+0x20/0x20 [ 32.231647] ? has_capability_noaudit+0x24/0x30 [ 32.236288] ? oom_badness+0xd1/0x980 [ 32.240060] ? lock_release+0xa40/0xa40 [ 32.244014] ? do_try_to_free_pages+0xc53/0x1020 [ 32.248751] ? find_lock_task_mm+0x460/0x460 [ 32.253143] ? find_held_lock+0x35/0x1d0 [ 32.257188] ? out_of_memory+0xb3a/0x1220 [ 32.261309] ? lock_downgrade+0x980/0x980 [ 32.265430] ? lock_release+0xa40/0xa40 [ 32.269388] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 32.274297] ? oom_evaluate_task+0x284/0x480 [ 32.278681] out_of_memory+0x86d/0x1220 [ 32.282643] ? oom_killer_disable+0x310/0x310 [ 32.287116] ? mutex_trylock+0x23a/0x2d0 [ 32.291148] ? __lock_is_held+0xb6/0x140 [ 32.295180] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 32.300612] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 32.305453] ? warn_alloc+0x2b0/0x2b0 [ 32.309228] ? lock_release+0xa40/0xa40 [ 32.313185] ? print_irqtrace_events+0x270/0x270 [ 32.317920] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 32.323089] ? mutex_spin_on_owner+0x446/0xb50 [ 32.327653] ? __lock_acquire+0x664/0x3e00 [ 32.331864] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 32.337743] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 32.342913] ? __lock_is_held+0xb6/0x140 [ 32.346956] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 32.352818] ? __might_sleep+0x95/0x190 [ 32.356770] __alloc_pages_nodemask+0x9fb/0xd80 [ 32.361409] ? lock_release+0xa40/0xa40 [ 32.365367] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 32.370364] ? pcpu_chunk_refresh_hint+0x425/0x570 [ 32.375272] ? print_irqtrace_events+0x270/0x270 [ 32.380021] ? __lock_is_held+0xb6/0x140 [ 32.384071] ? find_next_bit+0x27/0x30 [ 32.387933] pcpu_populate_chunk+0x1b3/0x880 [ 32.392332] pcpu_alloc+0x978/0x10e0 [ 32.396039] ? pcpu_free_area+0xa00/0xa00 [ 32.400162] ? vmap_page_range_noflush+0x523/0x720 [ 32.405068] ? retint_kernel+0x10/0x10 [ 32.408928] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 32.413920] ? retint_kernel+0x10/0x10 [ 32.417784] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 32.422776] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 32.427508] ? retint_kernel+0x10/0x10 [ 32.431380] __alloc_percpu_gfp+0x27/0x30 [ 32.435501] array_map_alloc+0x778/0xa00 [ 32.439543] SyS_bpf+0x7f8/0x4400 [ 32.442973] ? bpf_prog_get+0x20/0x20 [ 32.446747] ? __lock_acquire+0x664/0x3e00 [ 32.450960] ? perf_event_fork+0x30/0x30 [ 32.455004] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 32.460257] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 32.465421] ? vma_wants_writenotify+0x51/0x3b0 [ 32.470071] ? vma_wants_writenotify+0x3b0/0x3b0 [ 32.474803] ? vma_link+0xe9/0x170 [ 32.478319] ? mmap_region+0x52e/0x15a0 [ 32.482272] ? find_held_lock+0x35/0x1d0 [ 32.486307] ? check_noncircular+0x20/0x20 [ 32.490521] ? __handle_mm_fault+0x80e/0x3ce0 [ 32.494994] ? check_noncircular+0x20/0x20 [ 32.499201] ? __pmd_alloc+0x4e0/0x4e0 [ 32.503070] ? find_held_lock+0x35/0x1d0 [ 32.507108] ? handle_mm_fault+0x248/0x8d0 [ 32.511317] ? find_held_lock+0x35/0x1d0 [ 32.515357] ? __do_page_fault+0x5f7/0xc90 [ 32.519571] ? lock_downgrade+0x980/0x980 [ 32.523699] ? handle_mm_fault+0x410/0x8d0 [ 32.527906] ? down_read_trylock+0xdb/0x170 [ 32.532199] ? __do_page_fault+0x32d/0xc90 [ 32.536405] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 32.540966] ? vmacache_find+0x5f/0x280 [ 32.544910] ? vmacache_update+0xfe/0x130 [ 32.549037] ? up_read+0x1a/0x40 [ 32.552383] ? do_fast_syscall_32+0x156/0xf9d [ 32.556852] ? bpf_prog_get+0x20/0x20 [ 32.560623] do_fast_syscall_32+0x3ee/0xf9d [ 32.564930] ? do_int80_syscall_32+0x9d0/0x9d0 [ 32.569482] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 32.574387] ? syscall_return_slowpath+0x2ad/0x550 [ 32.579286] ? prepare_exit_to_usermode+0x340/0x340 [ 32.584273] ? retint_user+0x18/0x18 [ 32.587961] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 32.592780] entry_SYSENTER_compat+0x54/0x63 [ 32.597157] RIP: 0023:0xf7f5ac79 [ 32.600491] RSP: 002b:00000000ffbe874c EFLAGS: 00000282 ORIG_RAX: 0000000000000165 [ 32.608172] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000020c47fec [ 32.615412] RDX: 000000000000002c RSI: 00000000080ea00c RDI: 000000000000003f [ 32.622656] RBP: 00000000ffbe8798 R08: 0000000000000000 R09: 0000000000000000 [ 32.629904] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 32.637148] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 32.644455] Mem-Info: [ 32.647161] active_anon:6663 inactive_anon:63 isolated_anon:0 [ 32.647161] active_file:12 inactive_file:19 isolated_file:0 [ 32.647161] unevictable:0 dirty:1 writeback:0 unstable:0 [ 32.647161] slab_reclaimable:7274 slab_unreclaimable:83102 [ 32.647161] mapped:3 shmem:70 pagetables:296 bounce:0 [ 32.647161] free:24229 free_pcp:203 free_cma:0 [ 32.679411] Node 0 active_anon:26652kB inactive_anon:252kB active_file:48kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:12kB dirty:4kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 16384kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 32.706252] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 32.732530] lowmem_reserve[]: 0 2870 6381 6381 [ 32.737215] Node 0 DMA32 free:43964kB min:30332kB low:37912kB high:45492kB active_anon:24kB inactive_anon:0kB 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 [ 32.764636] lowmem_reserve[]: 0 0 3510 3510 [ 32.769174] Node 0 Normal free:37524kB min:37084kB low:46352kB high:55620kB active_anon:26604kB inactive_anon:252kB active_file:116kB inactive_file:136kB unevictable:0kB writepending:4kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3072kB pagetables:1224kB bounce:0kB free_pcp:372kB local_pcp:0kB free_cma:0kB [ 32.798194] lowmem_reserve[]: 0 0 0 0 [ 32.802049] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 32.815659] Node 0 DMA32: 7*4kB (UME) 4*8kB (UME) 6*16kB (UME) 3*32kB (ME) 5*64kB (UME) 5*128kB (ME) 5*256kB (ME) 5*512kB (UME) 4*1024kB (UME) 3*2048kB (ME) 7*4096kB (M) = 43964kB [ 32.832119] Node 0 Normal: 417*4kB (MEH) 414*8kB (UMH) 251*16kB (MEH) 170*32kB (MH) 58*64kB (MEH) 52*128kB (MH) 31*256kB (MH) 7*512kB (ME) 1*1024kB (H) 0*2048kB 0*4096kB = 37348kB [ 32.848472] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 32.857154] 160 total pagecache pages [ 32.861080] 0 pages in swap cache [ 32.864751] Swap cache stats: add 0, delete 0, find 0/0 [ 32.870569] Free swap = 0kB [ 32.873828] Total swap = 0kB [ 32.876997] 1965979 pages RAM [ 32.880266] 0 pages HighMem/MovableOnly [ 32.884372] 327760 pages reserved [ 32.887975] Unreclaimable slab info: [ 32.891828] Name Used Total [ 32.897495] hashtab_node 118KB 119KB [ 32.903004] ebitmap_node 382KB 385KB [ 32.908513] avtab_node 1012KB 1013KB [ 32.914140] TIPC 1KB 7KB [ 32.919651] SCTPv6 2KB 4KB [ 32.925181] DCCPv6 2KB 7KB [ 32.930688] DCCP 2KB 6KB [ 32.936203] fib6_nodes 0KB 4KB [ 32.941761] ip6_dst_cache 7KB 11KB [ 32.947274] RAWv6 9KB 19KB [ 32.952805] UDPv6 12KB 14KB [ 32.958307] TCPv6 2KB 5KB [ 32.963821] sd_ext_cdb 0KB 3KB [ 32.969334] scsi_sense_cache 70KB 136KB [ 32.974865] virtio_scsi_cmd 16KB 16KB [ 32.980364] sgpool-128 8KB 8KB [ 32.985905] sgpool-64 4KB 6KB [ 32.991396] sgpool-32 94KB 94KB [ 32.996867] sgpool-16 37KB 37KB [ 33.002402] sgpool-8 158KB 161KB [ 33.007894] cfq_io_cq 17KB 19KB [ 33.013368] cfq_queue 27KB 27KB [ 33.018965] mqueue_inode_cache 1KB 7KB [ 33.024716] nfs_commit_data 3KB 7KB [ 33.030244] nfs_write_data 34KB 37KB [ 33.035779] jbd2_inode 1KB 3KB [ 33.041302] ext4_system_zone 0KB 3KB [ 33.046854] bio-1 1KB 3KB [ 33.055126] rpc_buffers 17KB 19KB [ 33.061441] rpc_tasks 2KB 3KB [ 33.066843] UNIX 773KB 777KB [ 33.072231] tcp_bind_bucket 0KB 4KB [ 33.077602] ip_fib_trie 0KB 3KB [ 33.082961] ip_fib_alias 0KB 3KB [ 33.088332] ip_dst_cache 4KB 7KB [ 33.093698] RAW 5KB 7KB [ 33.099061] UDP 29KB 31KB [ 33.104426] TCP 7KB 7KB [ 33.109801] hugetlbfs_inode_cache 1KB 7KB [ 33.115509] eventpoll_pwq 10KB 15KB [ 33.120869] eventpoll_epi 19KB 27KB [ 33.126228] inotify_inode_mark 3KB 7KB [ 33.131680] request_queue 42KB 113KB [ 33.137063] blkdev_ioc 24KB 27KB [ 33.142429] bio-0 296KB 296KB [ 33.148502] biovec-(1<<(21-12)) 404KB 404KB [ 33.154048] biovec-64 94KB 94KB [ 33.159410] biovec-16 18KB 18KB [ 33.164768] bio_integrity_payload 0KB 4KB [ 33.170476] khugepaged_mm_slot 0KB 3KB [ 33.176148] uid_cache 0KB 3KB [ 33.181688] dmaengine-unmap-2 0KB 3KB [ 33.187220] audit_buffer 0KB 3KB [ 33.192616] skbuff_fclone_cache 134KB 135KB [ 33.198167] skbuff_head_cache 1720KB 1721KB [ 33.203526] configfs_dir_cache 0KB 4KB [ 33.208972] file_lock_cache 161KB 162KB [ 33.214340] file_lock_ctx 1KB 3KB [ 33.219704] fsnotify_mark_connector 2KB 3KB [ 33.225583] shmem_inode_cache 1045KB 1050KB [ 33.230939] task_delay_info 324KB 347KB [ 33.236309] sigqueue 364KB 370KB [ 33.241677] kernfs_node_cache 2285KB 2291KB [ 33.247036] mnt_cache 15KB 16KB [ 33.252409] filp 8451KB 8895KB [ 33.257779] names_cache 110993KB 111031KB [ 33.263186] avc_node 37KB 43KB [ 33.268557] selinux_file_security 431KB 492KB [ 33.274494] selinux_inode_security 1950KB 1952KB [ 33.280490] key_jar 3KB 7KB [ 33.286094] nsproxy 0KB 3KB [ 33.291614] vm_area_struct 18662KB 18670KB [ 33.297195] mm_struct 4520KB 4523KB [ 33.302722] fs_cache 426KB 432KB [ 33.308228] files_cache 1593KB 1597KB [ 33.313601] signal_cache 2541KB 2551KB [ 33.318967] sighand_cache 235KB 346KB [ 33.324326] task_struct 10841KB 10847KB [ 33.329684] cred_jar 2355KB 2360KB [ 33.335052] anon_vma_chain 7830KB 7835KB [ 33.340410] anon_vma 154KB 346KB [ 33.345764] pid 221KB 248KB [ 33.351123] Acpi-Operand 106KB 166KB [ 33.356483] Acpi-ParseExt 0KB 3KB [ 33.361839] Acpi-Parse 0KB 7KB [ 33.367203] Acpi-State 0KB 11KB [ 33.372573] Acpi-Namespace 19KB 23KB [ 33.377931] numa_policy 0KB 3KB [ 33.383289] debug_objects_cache 546KB 547KB [ 33.388822] trace_event_file 144KB 147KB [ 33.394185] ftrace_event_field 254KB 255KB [ 33.399626] pool_workqueue 24KB 28KB [ 33.404985] page->ptl 3100KB 3103KB [ 33.410356] kmalloc-262144 1032KB 1032KB [ 33.415863] kmalloc-131072 650KB 650KB [ 33.421369] kmalloc-65536 264KB 264KB [ 33.426909] kmalloc-32768 825KB 825KB [ 33.432415] kmalloc-16384 181KB 181KB [ 33.437901] kmalloc-8192 470KB 470KB [ 33.443395] kmalloc-4096 6931KB 6961KB [ 33.448876] kmalloc-2048 3247KB 3251KB [ 33.454242] kmalloc-1024 3535KB 3535KB [ 33.459605] kmalloc-512 2758KB 2763KB [ 33.464960] kmalloc-256 1978KB 2475KB [ 33.470317] kmalloc-128 408KB 527KB [ 33.475680] kmalloc-96 2052KB 2052KB [ 33.481044] kmalloc-64 2456KB 2456KB [ 33.486402] kmalloc-32 2405KB 2405KB [ 33.491760] kmalloc-192 908KB 908KB [ 33.497128] kmem_cache 101KB 105KB [ 33.502489] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 33.511083] [ 1814] 0 1814 5366 167 86016 0 -1000 udevd [ 33.519237] [ 3351] 0 3351 2493 574 57344 0 0 dhclient [ 33.527641] [ 3502] 0 3502 14298 188 118784 0 0 rsyslogd [ 33.536048] [ 3554] 0 3554 4725 50 86016 0 0 cron [ 33.544103] [ 3575] 0 3575 3735 44 65536 0 0 mcstransd [ 33.552592] [ 3599] 0 3599 12490 152 131072 0 -1000 sshd [ 33.560783] [ 3627] 0 3627 3694 41 73728 0 0 getty [ 33.568963] [ 3628] 0 3628 3694 39 77824 0 0 getty [ 33.577110] [ 3629] 0 3629 3694 42 77824 0 0 getty [ 33.585260] [ 3630] 0 3630 3694 42 77824 0 0 getty [ 33.593402] [ 3631] 0 3631 3694 40 77824 0 0 getty [ 33.601545] [ 3632] 0 3632 3694 40 77824 0 0 getty [ 33.609699] [ 3633] 0 3633 3649 39 77824 0 0 getty [ 33.617849] [ 3635] 0 3635 5679 455 86016 0 -1000 udevd [ 33.625997] [ 3636] 0 3636 5679 455 86016 0 -1000 udevd [ 33.634153] [ 3652] 0 3652 17821 196 180224 0 0 sshd [ 33.642211] [ 3655] 0 3655 237 1 24576 0 0 syzkaller224616 [ 33.651220] [ 3656] 0 3656 4332 521 28672 0 0 syzkaller224616 [ 33.660227] [ 3657] 0 3657 4332 521 28672 0 0 syzkaller224616 [ 33.669244] [ 3658] 0 3658 4332 521 28672 0 0 syzkaller224616 [ 33.678257] [ 3659] 0 3659 4332 521 28672 0 0 syzkaller224616 [ 33.687267] [ 3660] 0 3660 4332 521 28672 0 0 syzkaller224616 [ 33.696280] [ 3661] 0 3661 4332 521 28672 0 0 syzkaller224616 [ 33.705303] [ 3662] 0 3662 4332 521 28672 0 0 syzkaller224616 [ 33.714313] [ 3663] 0 3663 4332 521 28672 0 0 syzkaller224616 [ 33.723321] Out of memory: Kill process 3351 (dhclient) score 0 or sacrifice child [ 33.731272] Killed process 3351 (dhclient) total-vm:9972kB, anon-rss:2296kB, file-rss:0kB, shmem-rss:0kB [ 33.747821] syzkaller224616 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 33.760620] syzkaller224616 cpuset=/ mems_allowed=0 [ 33.765708] CPU: 0 PID: 3658 Comm: syzkaller224616 Not tainted 4.15.0-rc8+ #173 [ 33.773140] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.782464] Call Trace: [ 33.785034] dump_stack+0x194/0x257 [ 33.788644] ? arch_local_irq_restore+0x53/0x53 [ 33.793286] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 33.798455] dump_header+0x28c/0xe1e [ 33.802145] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 33.807305] ? print_irqtrace_events+0x270/0x270 [ 33.812035] ? pagefault_out_of_memory+0x152/0x152 [ 33.816935] ? check_noncircular+0x20/0x20 [ 33.821150] ? print_irqtrace_events+0x270/0x270 [ 33.825880] ? __lock_acquire+0x664/0x3e00 [ 33.830090] ? check_noncircular+0x20/0x20 [ 33.834303] ? find_held_lock+0x35/0x1d0 [ 33.838348] ? check_noncircular+0x20/0x20 [ 33.842561] ? task_will_free_mem+0x252/0xaa0 [ 33.847038] ? print_irqtrace_events+0x270/0x270 [ 33.851770] ? ___ratelimit+0x30d/0x630 [ 33.855718] ? lock_downgrade+0x980/0x980 [ 33.859842] ? lock_release+0xa40/0xa40 [ 33.863791] ? mark_held_locks+0xaf/0x100 [ 33.867912] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 33.872987] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 33.877978] ? trace_hardirqs_on+0xd/0x10 [ 33.882113] ? ___ratelimit+0x95/0x630 [ 33.885971] ? idr_get_free_cmn+0xfd0/0xfd0 [ 33.890268] ? check_noncircular+0x20/0x20 [ 33.894471] ? find_held_lock+0x138/0x1d0 [ 33.898598] oom_kill_process+0x8b5/0x14a0 [ 33.902814] ? has_ns_capability_noaudit+0x163/0x2a0 [ 33.907888] ? lock_downgrade+0x980/0x980 [ 33.912016] ? oom_evaluate_task+0x480/0x480 [ 33.916412] ? security_capable_noaudit+0x8b/0xc0 [ 33.921232] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 33.926305] ? has_capability+0x30/0x30 [ 33.930248] ? do_raw_spin_trylock+0x190/0x190 [ 33.934807] ? check_noncircular+0x20/0x20 [ 33.939026] ? has_capability_noaudit+0x24/0x30 [ 33.943676] ? oom_badness+0xd1/0x980 [ 33.947455] ? lock_release+0xa40/0xa40 [ 33.951401] ? do_try_to_free_pages+0xc53/0x1020 [ 33.956129] ? find_lock_task_mm+0x460/0x460 [ 33.960528] ? find_held_lock+0x35/0x1d0 [ 33.964569] ? out_of_memory+0xb3a/0x1220 [ 33.968692] ? lock_downgrade+0x980/0x980 [ 33.972821] ? lock_release+0xa40/0xa40 [ 33.976775] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 33.981686] ? oom_evaluate_task+0x284/0x480 [ 33.986077] out_of_memory+0x86d/0x1220 [ 33.990039] ? oom_killer_disable+0x310/0x310 [ 33.994769] ? mutex_trylock+0x23a/0x2d0 [ 33.998801] ? __lock_is_held+0xb6/0x140 [ 34.002836] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 34.008269] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 34.013105] ? lock_downgrade+0x8a7/0x980 [ 34.017231] ? warn_alloc+0x2b0/0x2b0 [ 34.021007] ? lock_release+0xa40/0xa40 [ 34.025047] ? print_irqtrace_events+0x270/0x270 [ 34.029775] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 34.034940] ? mutex_spin_on_owner+0x446/0xb50 [ 34.039501] ? __lock_acquire+0x664/0x3e00 [ 34.043712] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 34.049582] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 34.054767] ? __lock_is_held+0xb6/0x140 [ 34.058812] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 34.064680] ? __might_sleep+0x95/0x190 [ 34.068635] __alloc_pages_nodemask+0x9fb/0xd80 [ 34.073273] ? lock_release+0xa40/0xa40 [ 34.077220] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 34.082222] ? pcpu_chunk_refresh_hint+0x425/0x570 [ 34.087133] ? print_irqtrace_events+0x270/0x270 [ 34.091869] ? __lock_is_held+0xb6/0x140 [ 34.095905] ? find_next_bit+0x27/0x30 [ 34.099771] pcpu_populate_chunk+0x1b3/0x880 [ 34.104161] pcpu_alloc+0x978/0x10e0 [ 34.107858] ? pcpu_free_area+0xa00/0xa00 [ 34.111980] ? vmap_page_range_noflush+0x523/0x720 [ 34.116892] ? retint_kernel+0x10/0x10 [ 34.120751] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 34.125741] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 34.130479] ? retint_kernel+0x10/0x10 [ 34.134347] __alloc_percpu_gfp+0x27/0x30 [ 34.138467] array_map_alloc+0x778/0xa00 [ 34.142509] SyS_bpf+0x7f8/0x4400 [ 34.145952] ? bpf_prog_get+0x20/0x20 [ 34.149729] ? __lock_acquire+0x664/0x3e00 [ 34.153941] ? perf_event_fork+0x30/0x30 [ 34.157980] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 34.163139] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 34.168309] ? vma_wants_writenotify+0x51/0x3b0 [ 34.172965] ? vma_wants_writenotify+0x3b0/0x3b0 [ 34.177705] ? vma_link+0xe9/0x170 [ 34.181231] ? mmap_region+0x52e/0x15a0 [ 34.185191] ? find_held_lock+0x35/0x1d0 [ 34.189233] ? check_noncircular+0x20/0x20 [ 34.193451] ? __handle_mm_fault+0x80e/0x3ce0 [ 34.197930] ? check_noncircular+0x20/0x20 [ 34.202232] ? __pmd_alloc+0x4e0/0x4e0 [ 34.206097] ? find_held_lock+0x35/0x1d0 [ 34.210146] ? handle_mm_fault+0x248/0x8d0 [ 34.214356] ? find_held_lock+0x35/0x1d0 [ 34.218398] ? __do_page_fault+0x5f7/0xc90 [ 34.222613] ? lock_downgrade+0x980/0x980 [ 34.226738] ? handle_mm_fault+0x410/0x8d0 [ 34.230940] ? down_read_trylock+0xdb/0x170 [ 34.235237] ? __do_page_fault+0x32d/0xc90 [ 34.239442] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 34.244004] ? vmacache_find+0x5f/0x280 [ 34.247958] ? vmacache_update+0xfe/0x130 [ 34.252084] ? up_read+0x1a/0x40 [ 34.255430] ? do_fast_syscall_32+0x156/0xf9d [ 34.259899] ? bpf_prog_get+0x20/0x20 [ 34.263678] do_fast_syscall_32+0x3ee/0xf9d [ 34.267977] ? do_int80_syscall_32+0x9d0/0x9d0 [ 34.272529] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 34.277261] ? syscall_return_slowpath+0x2ad/0x550 [ 34.282163] ? prepare_exit_to_usermode+0x340/0x340 [ 34.287149] ? retint_user+0x18/0x18 [ 34.290839] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 34.295660] entry_SYSENTER_compat+0x54/0x63 [ 34.300041] RIP: 0023:0xf7f5ac79 [ 34.303376] RSP: 002b:00000000ffbe874c EFLAGS: 00000282 ORIG_RAX: 0000000000000165 [ 34.311058] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000020c47fec [ 34.318309] RDX: 000000000000002c RSI: 00000000080ea00c RDI: 000000000000003f [ 34.325552] RBP: 00000000ffbe8798 R08: 0000000000000000 R09: 0000000000000000 [ 34.332802] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 34.340058] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 34.347406] Mem-Info: [ 34.350018] active_anon:6083 inactive_anon:63 isolated_anon:0 [ 34.350018] active_file:22 inactive_file:22 isolated_file:0 [ 34.350018] unevictable:0 dirty:1 writeback:0 unstable:0 [ 34.350018] slab_reclaimable:7281 slab_unreclaimable:83114 [ 34.350018] mapped:3 shmem:70 pagetables:297 bounce:0 [ 34.350018] free:24054 free_pcp:177 free_cma:0 [ 34.382237] Node 0 active_anon:24332kB inactive_anon:252kB active_file:88kB inactive_file:88kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:12kB dirty:4kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 16384kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 34.409173] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 34.435314] lowmem_reserve[]: 0 2870 6381 6381 [ 34.439922] Node 0 DMA32 free:43964kB min:30332kB low:37912kB high:45492kB active_anon:24kB inactive_anon:0kB 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 [ 34.467175] lowmem_reserve[]: 0 0 3510 3510 [ 34.471509] Node 0 Normal free:36344kB min:37084kB low:46352kB high:55620kB active_anon:24308kB inactive_anon:252kB active_file:80kB inactive_file:88kB unevictable:0kB writepending:4kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3040kB pagetables:1188kB bounce:0kB free_pcp:712kB local_pcp:324kB free_cma:0kB [ 34.500350] lowmem_reserve[]: 0 0 0 0 [ 34.504179] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 34.517822] Node 0 DMA32: 7*4kB (UME) 4*8kB (UME) 6*16kB (UME) 3*32kB (ME) 5*64kB (UME) 5*128kB (ME) 5*256kB (ME) 5*512kB (UME) 4*1024kB (UME) 3*2048kB (ME) 7*4096kB (M) = 43964kB [ 34.534040] Node 0 Normal: 338*4kB (UMEH) 318*8kB (UMH) 232*16kB (UMH) 184*32kB (UMEH) 74*64kB (UMEH) 50*128kB (MEH) 34*256kB (UMEH) 4*512kB (UM) 1*1024kB (H) 0*2048kB 0*4096kB = 36408kB [ 34.550893] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 34.559466] 114 total pagecache pages [ 34.563269] 0 pages in swap cache [ 34.566712] Swap cache stats: add 0, delete 0, find 0/0 [ 34.572073] Free swap = 0kB [ 34.575079] Total swap = 0kB [ 34.578085] 1965979 pages RAM [ 34.581194] 0 pages HighMem/MovableOnly [ 34.585173] 327760 pages reserved [ 34.588620] Unreclaimable slab info: [ 34.592325] Name Used Total [ 34.597858] hashtab_node 118KB 119KB [ 34.603213] ebitmap_node 382KB 385KB [ 34.608573] avtab_node 1012KB 1013KB [ 34.613933] TIPC 1KB 7KB [ 34.619295] SCTPv6 2KB 4KB [ 34.624651] DCCPv6 2KB 7KB [ 34.630046] DCCP 2KB 6KB [ 34.635419] fib6_nodes 0KB 4KB [ 34.640774] ip6_dst_cache 6KB 11KB [ 34.646131] RAWv6 9KB 19KB [ 34.651486] UDPv6 12KB 14KB [ 34.656843] TCPv6 2KB 5KB [ 34.662209] sd_ext_cdb 0KB 3KB [ 34.667577] scsi_sense_cache 77KB 136KB [ 34.672934] virtio_scsi_cmd 16KB 16KB [ 34.678293] sgpool-128 8KB 8KB [ 34.683648] sgpool-64 4KB 6KB [ 34.689030] sgpool-32 126KB 126KB [ 34.694393] sgpool-16 45KB 45KB [ 34.699753] sgpool-8 158KB 161KB [ 34.705109] cfq_io_cq 17KB 19KB [ 34.710463] cfq_queue 27KB 27KB [ 34.715820] mqueue_inode_cache 1KB 7KB [ 34.721314] nfs_commit_data 3KB 7KB [ 34.726696] nfs_write_data 34KB 37KB [ 34.732084] jbd2_inode 1KB 3KB [ 34.737470] ext4_system_zone 0KB 3KB [ 34.742838] bio-1 1KB 3KB [ 34.748197] rpc_buffers 17KB 19KB [ 34.753555] rpc_tasks 2KB 3KB [ 34.758914] UNIX 773KB 777KB [ 34.764269] tcp_bind_bucket 0KB 4KB [ 34.769622] ip_fib_trie 0KB 3KB [ 34.774978] ip_fib_alias 0KB 3KB [ 34.780331] ip_dst_cache 4KB 7KB [ 34.785702] RAW 5KB 7KB [ 34.791067] UDP 29KB 31KB [ 34.796425] TCP 7KB 7KB [ 34.801780] hugetlbfs_inode_cache 1KB 7KB [ 34.807481] eventpoll_pwq 10KB 15KB [ 34.812834] eventpoll_epi 19KB 27KB [ 34.818186] inotify_inode_mark 3KB 7KB [ 34.823627] request_queue 42KB 113KB [ 34.828983] blkdev_ioc 24KB 27KB [ 34.834343] bio-0 303KB 303KB [ 34.839717] biovec-(1<<(21-12)) 404KB 404KB [ 34.845267] biovec-64 102KB 102KB [ 34.850643] biovec-16 18KB 18KB [ 34.856028] bio_integrity_payload 0KB 4KB [ 34.861755] khugepaged_mm_slot 0KB 3KB [ 34.867207] uid_cache 0KB 3KB [ 34.872576] dmaengine-unmap-2 0KB 3KB [ 34.877953] audit_buffer 0KB 3KB [ 34.883318] skbuff_fclone_cache 134KB 135KB [ 34.888874] skbuff_head_cache 1720KB 1721KB [ 34.894250] configfs_dir_cache 0KB 4KB [ 34.899710] file_lock_cache 161KB 162KB [ 34.905075] file_lock_ctx 1KB 3KB [ 34.910432] fsnotify_mark_connector 2KB 3KB [ 34.916309] shmem_inode_cache 1045KB 1050KB [ 34.921665] task_delay_info 320KB 347KB [ 34.927045] sigqueue 370KB 370KB [ 34.932407] kernfs_node_cache 2285KB 2291KB [ 34.937761] mnt_cache 15KB 16KB [ 34.943117] filp 8416KB 8876KB [ 34.948471] names_cache 110984KB 111022KB [ 34.953832] avc_node 37KB 43KB [ 34.959191] selinux_file_security 428KB 492KB [ 34.964894] selinux_inode_security 1950KB 1952KB [ 34.970772] key_jar 3KB 7KB [ 34.976134] nsproxy 0KB 3KB [ 34.981491] vm_area_struct 18662KB 18670KB [ 34.987643] mm_struct 4518KB 4523KB [ 34.992997] fs_cache 426KB 432KB [ 34.998358] files_cache 1593KB 1597KB [ 35.003711] signal_cache 2540KB 2551KB [ 35.009067] sighand_cache 226KB 339KB [ 35.014441] task_struct 10841KB 10841KB [ 35.019805] cred_jar 2354KB 2360KB [ 35.025158] anon_vma_chain 7830KB 7835KB [ 35.030532] anon_vma 149KB 342KB [ 35.035941] pid 221KB 248KB [ 35.041319] Acpi-Operand 106KB 166KB [ 35.046699] Acpi-Parse 0KB 3KB [ 35.052079] Acpi-State 0KB 7KB [ 35.057456] Acpi-Namespace 19KB 23KB [ 35.062819] numa_policy 0KB 3KB [ 35.068194] debug_objects_cache 546KB 547KB [ 35.073731] trace_event_file 144KB 147KB [ 35.079100] ftrace_event_field 254KB 255KB [ 35.084552] pool_workqueue 24KB 28KB [ 35.089923] page->ptl 3100KB 3103KB [ 35.095324] kmalloc-262144 1032KB 1032KB [ 35.100720] kmalloc-131072 650KB 650KB [ 35.106092] kmalloc-65536 264KB 264KB [ 35.111459] kmalloc-32768 825KB 825KB [ 35.116836] kmalloc-16384 181KB 181KB [ 35.122197] kmalloc-8192 470KB 470KB [ 35.127569] kmalloc-4096 6931KB 6961KB [ 35.132946] kmalloc-2048 3247KB 3251KB [ 35.138306] kmalloc-1024 3543KB 3543KB [ 35.144466] kmalloc-512 2758KB 2763KB [ 35.149830] kmalloc-256 1975KB 2475KB [ 35.155203] kmalloc-128 408KB 527KB [ 35.160582] kmalloc-96 2052KB 2052KB [ 35.165943] kmalloc-64 2456KB 2456KB [ 35.171312] kmalloc-32 2405KB 2405KB [ 35.176674] kmalloc-192 908KB 908KB [ 35.182040] kmem_cache 101KB 105KB [ 35.187401] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 35.196012] [ 1814] 0 1814 5366 167 86016 0 -1000 udevd [ 35.204201] [ 3502] 0 3502 14298 188 118784 0 0 rsyslogd [ 35.212633] [ 3554] 0 3554 4725 50 86016 0 0 cron [ 35.220714] [ 3575] 0 3575 3735 44 65536 0 0 mcstransd [ 35.229223] [ 3599] 0 3599 12490 152 131072 0 -1000 sshd [ 35.237300] [ 3627] 0 3627 3694 41 73728 0 0 getty [ 35.245464] [ 3628] 0 3628 3694 39 77824 0 0 getty [ 35.253638] [ 3629] 0 3629 3694 42 77824 0 0 getty [ 35.261809] [ 3630] 0 3630 3694 42 77824 0 0 getty [ 35.269979] [ 3631] 0 3631 3694 40 77824 0 0 getty [ 35.278154] [ 3632] 0 3632 3694 40 77824 0 0 getty [ 35.286304] [ 3633] 0 3633 3649 39 77824 0 0 getty [ 35.294459] [ 3635] 0 3635 5679 455 86016 0 -1000 udevd [ 35.302606] [ 3636] 0 3636 5679 455 86016 0 -1000 udevd [ 35.310772] [ 3652] 0 3652 17821 196 180224 0 0 sshd [ 35.318852] [ 3655] 0 3655 237 1 24576 0 0 syzkaller224616 [ 35.327872] [ 3656] 0 3656 4332 521 28672 0 0 syzkaller224616 [ 35.336900] [ 3657] 0 3657 4332 521 28672 0 0 syzkaller224616 [ 35.345927] [ 3658] 0 3658 4332 521 28672 0 0 syzkaller224616 [ 35.354961] [ 3659] 0 3659 4332 521 28672 0 0 syzkaller224616 [ 35.364038] [ 3660] 0 3660 4332 521 28672 0 0 syzkaller224616 [ 35.373082] [ 3661] 0 3661 4332 521 28672 0 0 syzkaller224616 [ 35.382101] [ 3662] 0 3662 4332 521 28672 0 0 syzkaller224616 [ 35.391131] [ 3663] 0 3663 4332 521 28672 0 0 syzkaller224616 [ 35.400172] Out of memory: Kill process 3656 (syzkaller224616) score 0 or sacrifice child [ 35.408527] Killed process 3656 (syzkaller224616) total-vm:17328kB, anon-rss:2084kB, file-rss:0kB, shmem-rss:0kB [ 35.420513] oom_reaper: reaped process 3656 (syzkaller224616), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 35.434018] udevd invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=-1000 [ 35.445572] udevd cpuset=/ mems_allowed=0 [ 35.449840] CPU: 1 PID: 1814 Comm: udevd Not tainted 4.15.0-rc8+ #173 [ 35.456394] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.465729] Call Trace: [ 35.468301] dump_stack+0x194/0x257 [ 35.471910] ? arch_local_irq_restore+0x53/0x53 [ 35.476560] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 35.481739] dump_header+0x28c/0xe1e [ 35.485434] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 35.490610] ? pagefault_out_of_memory+0x152/0x152 [ 35.495516] ? check_noncircular+0x20/0x20 [ 35.499726] ? print_irqtrace_events+0x270/0x270 [ 35.504472] ? __lock_acquire+0x664/0x3e00 [ 35.508691] ? check_noncircular+0x20/0x20 [ 35.512905] ? find_held_lock+0x35/0x1d0 [ 35.516945] ? check_noncircular+0x20/0x20 [ 35.521153] ? task_will_free_mem+0x252/0xaa0 [ 35.525627] ? print_irqtrace_events+0x270/0x270 [ 35.530372] ? ___ratelimit+0x30d/0x630 [ 35.534332] ? lock_downgrade+0x980/0x980 [ 35.538474] ? lock_release+0xa40/0xa40 [ 35.542437] ? mark_held_locks+0xaf/0x100 [ 35.546574] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 35.551669] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 35.556679] ? trace_hardirqs_on+0xd/0x10 [ 35.560825] ? ___ratelimit+0x95/0x630 [ 35.564691] ? idr_get_free_cmn+0xfd0/0xfd0 [ 35.568994] ? check_noncircular+0x20/0x20 [ 35.573212] ? find_held_lock+0x138/0x1d0 [ 35.577364] oom_kill_process+0x8b5/0x14a0 [ 35.581594] ? has_ns_capability_noaudit+0x163/0x2a0 [ 35.586679] ? lock_downgrade+0x980/0x980 [ 35.590807] ? oom_evaluate_task+0x480/0x480 [ 35.595217] ? security_capable_noaudit+0x8b/0xc0 [ 35.600057] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 35.605148] ? has_capability+0x30/0x30 [ 35.609108] ? do_raw_spin_trylock+0x190/0x190 [ 35.613679] ? check_noncircular+0x20/0x20 [ 35.617897] ? has_capability_noaudit+0x24/0x30 [ 35.622548] ? oom_badness+0xd1/0x980 [ 35.626333] ? lock_release+0xa40/0xa40 [ 35.630302] ? find_lock_task_mm+0x460/0x460 [ 35.634696] ? find_held_lock+0x35/0x1d0 [ 35.638739] ? out_of_memory+0xb3a/0x1220 [ 35.642878] ? lock_downgrade+0x980/0x980 [ 35.647007] ? lock_release+0xa40/0xa40 [ 35.650964] ? lock_acquire+0x1d5/0x580 [ 35.655001] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 35.659919] ? oom_evaluate_task+0x284/0x480 [ 35.664320] out_of_memory+0x86d/0x1220 [ 35.668284] ? find_next_bit+0x27/0x30 [ 35.672175] ? oom_killer_disable+0x310/0x310 [ 35.676654] ? mutex_trylock+0x23a/0x2d0 [ 35.680704] ? __lock_is_held+0xb6/0x140 [ 35.684742] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 35.690199] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 35.695045] ? trace_hardirqs_on+0xd/0x10 [ 35.699212] ? warn_alloc+0x2b0/0x2b0 [ 35.702995] ? lock_downgrade+0x980/0x980 [ 35.707149] ? __lock_is_held+0xb6/0x140 [ 35.711226] ? find_get_entry+0x53c/0x9e0 [ 35.715396] ? __lock_acquire+0x664/0x3e00 [ 35.719641] ? __lock_is_held+0xb6/0x140 [ 35.723696] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 35.729580] ? __might_sleep+0x95/0x190 [ 35.733555] __alloc_pages_nodemask+0x9fb/0xd80 [ 35.738226] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 35.743233] ? add_to_page_cache_lru+0x510/0x510 [ 35.747981] ? check_noncircular+0x20/0x20 [ 35.752201] ? check_noncircular+0x20/0x20 [ 35.756438] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 35.761217] alloc_pages_current+0xb6/0x1e0 [ 35.765541] __page_cache_alloc+0x334/0x500 [ 35.769846] ? rcu_read_lock_held+0xa9/0xc0 [ 35.774158] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 35.781528] filemap_fault+0xefc/0x1c20 [ 35.785495] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 35.790690] ? __lock_page_or_retry+0x4f0/0x4f0 [ 35.795360] ? filemap_map_pages+0x942/0x15d0 [ 35.799836] ? free_obj_work+0x690/0x690 [ 35.803883] ? find_get_entries_tag+0xeb0/0xeb0 [ 35.808548] ? check_noncircular+0x20/0x20 [ 35.812768] ? print_irqtrace_events+0x270/0x270 [ 35.817502] ? print_irqtrace_events+0x270/0x270 [ 35.822248] ? print_irqtrace_events+0x270/0x270 [ 35.826989] ? do_raw_spin_trylock+0x190/0x190 [ 35.831577] ? lock_acquire+0x1d5/0x580 [ 35.835542] ? lock_acquire+0x1d5/0x580 [ 35.839507] ? ext4_filemap_fault+0x7a/0xad [ 35.843819] ? __lock_acquire+0x664/0x3e00 [ 35.848041] ? lock_release+0xa40/0xa40 [ 35.852000] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 35.857870] ? rcu_note_context_switch+0x710/0x710 [ 35.862778] ? __might_sleep+0x95/0x190 [ 35.866730] ? down_read+0x96/0x150 [ 35.870334] ? ext4_filemap_fault+0x7a/0xad [ 35.874644] ? __down_interruptible+0x6b0/0x6b0 [ 35.879320] ext4_filemap_fault+0x82/0xad [ 35.883463] __do_fault+0xeb/0x30f [ 35.886988] ? pte_offset_kernel+0xc7/0xc7 [ 35.891213] ? do_raw_spin_trylock+0x190/0x190 [ 35.895782] ? check_noncircular+0x20/0x20 [ 35.899997] __handle_mm_fault+0x1d8f/0x3ce0 [ 35.904404] ? __pmd_alloc+0x4e0/0x4e0 [ 35.908293] ? find_held_lock+0x35/0x1d0 [ 35.912353] ? handle_mm_fault+0x248/0x8d0 [ 35.916576] ? lock_downgrade+0x980/0x980 [ 35.920725] handle_mm_fault+0x334/0x8d0 [ 35.924759] ? down_read_trylock+0xdb/0x170 [ 35.929060] ? __do_page_fault+0x32d/0xc90 [ 35.933286] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 35.937850] ? vmacache_find+0x5f/0x280 [ 35.941802] ? find_vma+0x30/0x150 [ 35.945333] __do_page_fault+0x5c9/0xc90 [ 35.949395] ? mm_fault_error+0x2c0/0x2c0 [ 35.953614] ? __fdget+0x18/0x20 [ 35.956972] do_page_fault+0xee/0x720 [ 35.960751] ? __do_page_fault+0xc90/0xc90 [ 35.964970] ? __sb_end_write+0xa0/0xd0 [ 35.968920] ? vfs_write+0x224/0x510 [ 35.972630] ? retint_user+0x18/0x18 [ 35.976998] ? page_fault+0x36/0x60 [ 35.980613] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 35.985447] ? page_fault+0x36/0x60 [ 35.989062] page_fault+0x4c/0x60 [ 35.992498] RIP: 0033:0x7fa5163ada60 [ 35.996196] RSP: 002b:00007ffd36aa31f8 EFLAGS: 00010202 [ 36.001545] RAX: 000000000115a1c0 RBX: 0000000001146bf0 RCX: 00474f4c5f564544 [ 36.008795] RDX: 0000000000000000 RSI: 000000000113c359 RDI: 000000000113c370 [ 36.016133] RBP: 0000000001151a30 R08: 000000000115a1b0 R09: 0000000000000000 [ 36.023388] R10: 000000000113c030 R11: 00007fa5163b0c81 R12: 000000000113c370 [ 36.030643] R13: 000000000113c350 R14: ffffffffffffffff R15: 000000000113c030 [ 36.038080] Mem-Info: [ 36.041406] active_anon:5566 inactive_anon:63 isolated_anon:0 [ 36.041406] active_file:3 inactive_file:25 isolated_file:0 [ 36.041406] unevictable:0 dirty:1 writeback:0 unstable:0 [ 36.041406] slab_reclaimable:7281 slab_unreclaimable:83102 [ 36.041406] mapped:3 shmem:70 pagetables:296 bounce:0 [ 36.041406] free:24109 free_pcp:32 free_cma:0 [ 36.073387] Node 0 active_anon:22264kB inactive_anon:252kB active_file:12kB inactive_file:100kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:12kB dirty:4kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 14336kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 36.100477] 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 [ 36.126628] lowmem_reserve[]: 0 2870 6381 6381 [ 36.131245] Node 0 DMA32 free:43964kB min:30332kB low:37912kB high:45492kB active_anon:24kB inactive_anon:0kB 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:0kB local_pcp:0kB free_cma:0kB [ 36.158516] lowmem_reserve[]: 0 0 3510 3510 [ 36.162869] Node 0 Normal free:36564kB min:37084kB low:46352kB high:55620kB active_anon:22240kB inactive_anon:252kB active_file:12kB inactive_file:100kB unevictable:0kB writepending:4kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3040kB pagetables:1184kB bounce:0kB free_pcp:132kB local_pcp:0kB free_cma:0kB [ 36.192180] lowmem_reserve[]: 0 0 0 0 [ 36.196041] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 36.209716] Node 0 DMA32: 7*4kB (UME) 4*8kB (UME) 6*16kB (UME) 3*32kB (ME) 5*64kB (UME) 5*128kB (ME) 5*256kB (ME) 5*512kB (UME) 4*1024kB (UME) 3*2048kB (ME) 7*4096kB (M) = 43964kB [ 36.225984] Node 0 Normal: 387*4kB (MEH) 309*8kB (UMEH) 213*16kB (UMEH) 173*32kB (UMEH) 75*64kB (UMH) 51*128kB (MH) 32*256kB (MH) 4*512kB (ME) 2*1024kB (UH) 0*2048kB 0*4096kB = 36580kB [ 36.242684] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 36.251272] 114 total pagecache pages [ 36.255094] 0 pages in swap cache [ 36.258557] Swap cache stats: add 0, delete 0, find 0/0 [ 36.263938] Free swap = 0kB [ 36.266944] Total swap = 0kB [ 36.269951] 1965979 pages RAM [ 36.273054] 0 pages HighMem/MovableOnly [ 36.277031] 327760 pages reserved [ 36.280566] Unreclaimable slab info: [ 36.284373] Name Used Total [ 36.289975] hashtab_node 118KB 119KB [ 36.295359] ebitmap_node 382KB 385KB [ 36.300723] avtab_node 1012KB 1013KB [ 36.306104] TIPC 1KB 7KB [ 36.311484] SCTPv6 2KB 4KB [ 36.316850] DCCPv6 2KB 7KB [ 36.322891] DCCP 2KB 6KB [ 36.328292] fib6_nodes 0KB 4KB [ 36.333678] ip6_dst_cache 6KB 11KB [ 36.339059] RAWv6 9KB 19KB [ 36.344438] UDPv6 12KB 14KB [ 36.349888] TCPv6 2KB 5KB [ 36.355272] sd_ext_cdb 0KB 3KB [ 36.360651] scsi_sense_cache 77KB 136KB [ 36.366043] virtio_scsi_cmd 16KB 16KB [ 36.371412] sgpool-128 8KB 8KB [ 36.376769] sgpool-64 4KB 6KB [ 36.382135] sgpool-32 133KB 133KB [ 36.387497] sgpool-16 45KB 45KB [ 36.392849] sgpool-8 158KB 161KB [ 36.398221] cfq_io_cq 16KB 19KB [ 36.403585] cfq_queue 23KB 27KB [ 36.408955] mqueue_inode_cache 1KB 7KB [ 36.414422] nfs_commit_data 3KB 7KB [ 36.419789] nfs_write_data 34KB 37KB [ 36.425163] jbd2_inode 1KB 3KB [ 36.430523] ext4_system_zone 0KB 3KB [ 36.435908] bio-1 1KB 3KB [ 36.441289] rpc_buffers 17KB 19KB [ 36.446652] rpc_tasks 2KB 3KB [ 36.452827] UNIX 773KB 777KB [ 36.458225] tcp_bind_bucket 0KB 4KB [ 36.463595] ip_fib_trie 0KB 3KB [ 36.468966] ip_fib_alias 0KB 3KB [ 36.474347] ip_dst_cache 4KB 7KB [ 36.479731] RAW 5KB 7KB [ 36.485106] UDP 29KB 31KB [ 36.490476] TCP 7KB 7KB [ 36.495851] hugetlbfs_inode_cache 1KB 7KB [ 36.501581] eventpoll_pwq 10KB 15KB [ 36.506946] eventpoll_epi 19KB 27KB [ 36.512313] inotify_inode_mark 3KB 7KB [ 36.517764] request_queue 42KB 113KB [ 36.523134] blkdev_ioc 22KB 27KB [ 36.528498] bio-0 307KB 307KB [ 36.533858] biovec-(1<<(21-12)) 404KB 404KB [ 36.539400] biovec-64 102KB 102KB [ 36.544763] biovec-16 22KB 22KB [ 36.550118] bio_integrity_payload 0KB 4KB [ 36.555826] khugepaged_mm_slot 0KB 3KB [ 36.561285] uid_cache 0KB 3KB [ 36.566648] dmaengine-unmap-2 0KB 3KB [ 36.572005] audit_buffer 0KB 3KB [ 36.577387] skbuff_fclone_cache 134KB 135KB [ 36.582927] skbuff_head_cache 1720KB 1721KB [ 36.588697] configfs_dir_cache 0KB 4KB [ 36.594148] file_lock_cache 161KB 162KB [ 36.599518] file_lock_ctx 1KB 3KB [ 36.604885] fsnotify_mark_connector 2KB 3KB [ 36.610806] shmem_inode_cache 1045KB 1050KB [ 36.616174] task_delay_info 319KB 347KB [ 36.621554] sigqueue 369KB 370KB [ 36.626925] kernfs_node_cache 2285KB 2291KB [ 36.632284] mnt_cache 15KB 16KB [ 36.637656] filp 8410KB 8872KB [ 36.643046] names_cache 110976KB 111014KB [ 36.648414] avc_node 37KB 43KB [ 36.653771] selinux_file_security 427KB 492KB [ 36.659490] selinux_inode_security 1950KB 1952KB [ 36.665304] key_jar 3KB 7KB [ 36.670666] nsproxy 0KB 3KB [ 36.676027] vm_area_struct 18662KB 18670KB [ 36.681392] mm_struct 4518KB 4523KB [ 36.686759] fs_cache 425KB 432KB [ 36.692116] files_cache 1593KB 1597KB [ 36.697487] signal_cache 2540KB 2551KB [ 36.702852] sighand_cache 224KB 339KB [ 36.708259] task_struct 10841KB 10841KB [ 36.713644] cred_jar 2353KB 2360KB [ 36.719039] anon_vma_chain 7829KB 7835KB [ 36.724814] anon_vma 143KB 338KB [ 36.730172] pid 221KB 248KB [ 36.735546] Acpi-Operand 106KB 166KB [ 36.740940] Acpi-Parse 0KB 3KB [ 36.746320] Acpi-State 0KB 7KB [ 36.751682] Acpi-Namespace 19KB 23KB [ 36.757054] numa_policy 0KB 3KB [ 36.762434] debug_objects_cache 545KB 547KB [ 36.767987] trace_event_file 144KB 147KB [ 36.773369] ftrace_event_field 254KB 255KB [ 36.778827] pool_workqueue 24KB 28KB [ 36.784197] page->ptl 3099KB 3103KB [ 36.789680] kmalloc-262144 1032KB 1032KB [ 36.795058] kmalloc-131072 650KB 650KB [ 36.800439] kmalloc-65536 264KB 264KB [ 36.805814] kmalloc-32768 825KB 825KB [ 36.811188] kmalloc-16384 181KB 181KB [ 36.816566] kmalloc-8192 470KB 470KB [ 36.821940] kmalloc-4096 6931KB 6961KB [ 36.827321] kmalloc-2048 3247KB 3251KB [ 36.832685] kmalloc-1024 3543KB 3543KB [ 36.838053] kmalloc-512 2758KB 2763KB [ 36.843436] kmalloc-256 1971KB 2471KB [ 36.848813] kmalloc-128 408KB 527KB [ 36.854194] kmalloc-96 2052KB 2052KB [ 36.860193] kmalloc-64 2460KB 2460KB [ 36.865564] kmalloc-32 2405KB 2405KB [ 36.871061] kmalloc-192 908KB 908KB [ 36.876436] kmem_cache 101KB 105KB [ 36.881808] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 36.890487] [ 1814] 0 1814 5366 167 86016 0 -1000 udevd [ 36.898724] [ 3502] 0 3502 14298 188 118784 0 0 rsyslogd [ 36.907143] [ 3554] 0 3554 4725 50 86016 0 0 cron [ 36.915219] [ 3575] 0 3575 3735 44 65536 0 0 mcstransd [ 36.923729] [ 3599] 0 3599 12490 152 131072 0 -1000 sshd [ 36.931803] [ 3627] 0 3627 3694 41 73728 0 0 getty [ 36.939965] [ 3628] 0 3628 3694 39 77824 0 0 getty [ 36.948126] [ 3629] 0 3629 3694 42 77824 0 0 getty [ 36.956272] [ 3630] 0 3630 3694 42 77824 0 0 getty [ 36.964427] [ 3631] 0 3631 3694 40 77824 0 0 getty [ 36.972576] [ 3632] 0 3632 3694 40 77824 0 0 getty [ 36.980739] [ 3633] 0 3633 3649 39 77824 0 0 getty [ 36.988895] [ 3635] 0 3635 5679 455 86016 0 -1000 udevd [ 36.997072] [ 3636] 0 3636 5679 455 86016 0 -1000 udevd [ 37.005234] [ 3652] 0 3652 17821 196 180224 0 0 sshd [ 37.013310] [ 3655] 0 3655 237 1 24576 0 0 syzkaller224616 [ 37.022339] [ 3656] 0 3656 4332 0 24576 0 0 syzkaller224616 [ 37.031378] [ 3657] 0 3657 4332 521 28672 0 0 syzkaller224616 [ 37.040391] [ 3658] 0 3658 4332 521 28672 0 0 syzkaller224616 [ 37.049413] [ 3659] 0 3659 4332 521 28672 0 0 syzkaller224616 [ 37.058425] [ 3660] 0 3660 4332 521 28672 0 0 syzkaller224616 [ 37.067447] [ 3661] 0 3661 4332 521 28672 0 0 syzkaller224616 [ 37.076473] [ 3662] 0 3662 4332 521 28672 0 0 syzkaller224616 [ 37.085503] [ 3663] 0 3663 4332 521 28672 0 0 syzkaller224616 [ 37.094540] Out of memory: Kill process 3657 (syzkaller224616) score 0 or sacrifice child [ 37.103713] Killed process 3657 (syzkaller224616) total-vm:17328kB, anon-rss:2084kB, file-rss:0kB, shmem-rss:0kB [ 37.116901] oom_reaper: reaped process 3657 (syzkaller224616), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 37.217923] syzkaller224616 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 37.230962] syzkaller224616 cpuset=/ mems_allowed=0 [ 37.236060] CPU: 1 PID: 3660 Comm: syzkaller224616 Not tainted 4.15.0-rc8+ #173 [ 37.243490] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.252817] Call Trace: [ 37.255390] dump_stack+0x194/0x257 [ 37.259004] ? arch_local_irq_restore+0x53/0x53 [ 37.263658] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 37.268833] dump_header+0x28c/0xe1e [ 37.272525] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 37.277695] ? pagefault_out_of_memory+0x152/0x152 [ 37.282610] ? check_noncircular+0x20/0x20 [ 37.286837] ? print_irqtrace_events+0x270/0x270 [ 37.291590] ? __lock_acquire+0x664/0x3e00 [ 37.295983] ? check_noncircular+0x20/0x20 [ 37.300293] ? find_held_lock+0x35/0x1d0 [ 37.304336] ? check_noncircular+0x20/0x20 [ 37.308542] ? task_will_free_mem+0x252/0xaa0 [ 37.313011] ? print_irqtrace_events+0x270/0x270 [ 37.317744] ? ___ratelimit+0x30d/0x630 [ 37.321687] ? lock_downgrade+0x980/0x980 [ 37.325810] ? lock_release+0xa40/0xa40 [ 37.329761] ? mark_held_locks+0xaf/0x100 [ 37.333878] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 37.338952] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 37.343937] ? trace_hardirqs_on+0xd/0x10 [ 37.348058] ? ___ratelimit+0x95/0x630 [ 37.351915] ? idr_get_free_cmn+0xfd0/0xfd0 [ 37.356207] ? check_noncircular+0x20/0x20 [ 37.360411] ? find_held_lock+0x138/0x1d0 [ 37.364535] oom_kill_process+0x8b5/0x14a0 [ 37.368747] ? has_ns_capability_noaudit+0x163/0x2a0 [ 37.373821] ? lock_downgrade+0x980/0x980 [ 37.377941] ? oom_evaluate_task+0x480/0x480 [ 37.382336] ? security_capable_noaudit+0x8b/0xc0 [ 37.387164] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 37.392238] ? has_capability+0x30/0x30 [ 37.396182] ? do_raw_spin_trylock+0x190/0x190 [ 37.400741] ? check_noncircular+0x20/0x20 [ 37.404965] ? has_capability_noaudit+0x24/0x30 [ 37.409607] ? oom_badness+0xd1/0x980 [ 37.413377] ? lock_release+0xa40/0xa40 [ 37.417324] ? find_lock_task_mm+0x460/0x460 [ 37.421707] ? find_held_lock+0x35/0x1d0 [ 37.425746] ? out_of_memory+0xb3a/0x1220 [ 37.429865] ? lock_downgrade+0x980/0x980 [ 37.433992] ? lock_release+0xa40/0xa40 [ 37.437938] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 37.442844] ? oom_evaluate_task+0x284/0x480 [ 37.447226] out_of_memory+0x86d/0x1220 [ 37.451169] ? find_next_bit+0x27/0x30 [ 37.455033] ? oom_killer_disable+0x310/0x310 [ 37.459497] ? mutex_trylock+0x23a/0x2d0 [ 37.463526] ? __lock_is_held+0xb6/0x140 [ 37.467555] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 37.472991] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 37.477828] ? lock_downgrade+0x8a7/0x980 [ 37.481944] ? warn_alloc+0x2b0/0x2b0 [ 37.485717] ? lock_release+0xa40/0xa40 [ 37.489666] ? print_irqtrace_events+0x270/0x270 [ 37.494394] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 37.499558] ? mutex_spin_on_owner+0x446/0xb50 [ 37.504117] ? __lock_acquire+0x664/0x3e00 [ 37.508326] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 37.514193] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 37.519361] ? __lock_is_held+0xb6/0x140 [ 37.523406] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 37.529269] ? __might_sleep+0x95/0x190 [ 37.533218] __alloc_pages_nodemask+0x9fb/0xd80 [ 37.537858] ? lock_release+0xa40/0xa40 [ 37.541811] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 37.546808] ? pcpu_chunk_refresh_hint+0x425/0x570 [ 37.551712] ? print_irqtrace_events+0x270/0x270 [ 37.556445] ? __lock_is_held+0xb6/0x140 [ 37.560501] ? find_next_bit+0x27/0x30 [ 37.564367] pcpu_populate_chunk+0x1b3/0x880 [ 37.568756] pcpu_alloc+0x978/0x10e0 [ 37.572466] ? pcpu_free_area+0xa00/0xa00 [ 37.576592] ? vmap_page_range_noflush+0x523/0x720 [ 37.581512] ? map_vm_area+0x9e/0xd0 [ 37.585201] ? __vmalloc_node_range+0x37a/0x650 [ 37.589849] ? array_map_alloc+0x351/0xa00 [ 37.594056] ? __vmalloc_node_flags_caller+0x50/0x60 [ 37.599137] __alloc_percpu_gfp+0x27/0x30 [ 37.603259] array_map_alloc+0x778/0xa00 [ 37.607309] SyS_bpf+0x7f8/0x4400 [ 37.610743] ? bpf_prog_get+0x20/0x20 [ 37.614514] ? __lock_acquire+0x664/0x3e00 [ 37.618728] ? perf_event_fork+0x30/0x30 [ 37.622767] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 37.627926] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 37.633087] ? vma_wants_writenotify+0x51/0x3b0 [ 37.637735] ? vma_wants_writenotify+0x3b0/0x3b0 [ 37.642463] ? vma_link+0xe9/0x170 [ 37.645979] ? mmap_region+0x52e/0x15a0 [ 37.649933] ? find_held_lock+0x35/0x1d0 [ 37.653966] ? check_noncircular+0x20/0x20 [ 37.658178] ? __handle_mm_fault+0x80e/0x3ce0 [ 37.662653] ? check_noncircular+0x20/0x20 [ 37.666856] ? __pmd_alloc+0x4e0/0x4e0 [ 37.670723] ? find_held_lock+0x35/0x1d0 [ 37.674762] ? handle_mm_fault+0x248/0x8d0 [ 37.678972] ? find_held_lock+0x35/0x1d0 [ 37.683019] ? __do_page_fault+0x5f7/0xc90 [ 37.687231] ? lock_downgrade+0x980/0x980 [ 37.691357] ? handle_mm_fault+0x410/0x8d0 [ 37.695566] ? down_read_trylock+0xdb/0x170 [ 37.699856] ? __do_page_fault+0x32d/0xc90 [ 37.704060] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 37.708614] ? vmacache_find+0x5f/0x280 [ 37.712557] ? vmacache_update+0xfe/0x130 [ 37.716680] ? up_read+0x1a/0x40 [ 37.720038] ? do_fast_syscall_32+0x156/0xf9d [ 37.724510] ? bpf_prog_get+0x20/0x20 [ 37.728283] do_fast_syscall_32+0x3ee/0xf9d [ 37.732582] ? do_int80_syscall_32+0x9d0/0x9d0 [ 37.737133] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 37.741866] ? syscall_return_slowpath+0x2ad/0x550 [ 37.746765] ? prepare_exit_to_usermode+0x340/0x340 [ 37.751757] ? retint_user+0x18/0x18 [ 37.755445] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 37.760275] entry_SYSENTER_compat+0x54/0x63 [ 37.764653] RIP: 0023:0xf7f5ac79 [ 37.767985] RSP: 002b:00000000ffbe874c EFLAGS: 00000282 ORIG_RAX: 0000000000000165 [ 37.775679] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000020c47fec [ 37.782920] RDX: 000000000000002c RSI: 00000000080ea00c RDI: 000000000000003f [ 37.790229] RBP: 00000000ffbe8798 R08: 0000000000000000 R09: 0000000000000000 [ 37.797470] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 37.804707] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 37.811998] Mem-Info: [ 37.814455] active_anon:5049 inactive_anon:63 isolated_anon:0 [ 37.814455] active_file:19 inactive_file:25 isolated_file:0 [ 37.814455] unevictable:0 dirty:7 writeback:0 unstable:0 [ 37.814455] slab_reclaimable:7283 slab_unreclaimable:83076 [ 37.814455] mapped:3 shmem:70 pagetables:295 bounce:0 [ 37.814455] free:24276 free_pcp:10 free_cma:0 [ 37.846598] Node 0 active_anon:20196kB inactive_anon:252kB active_file:108kB inactive_file:144kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:12kB dirty:8kB writeback:20kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 12288kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 37.874490] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 37.900739] lowmem_reserve[]: 0 2870 6381 6381 [ 37.905370] Node 0 DMA32 free:43964kB min:30332kB low:37912kB high:45492kB active_anon:24kB inactive_anon:0kB 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 [ 37.932673] lowmem_reserve[]: 0 0 3510 3510 [ 37.937040] Node 0 Normal free:37268kB min:37084kB low:46352kB high:55620kB active_anon:20172kB inactive_anon:252kB active_file:100kB inactive_file:200kB unevictable:0kB writepending:28kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3040kB pagetables:1180kB bounce:0kB free_pcp:216kB local_pcp:0kB free_cma:0kB [ 37.965967] lowmem_reserve[]: 0 0 0 0 [ 37.969814] 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 [ 37.984965] Node 0 DMA32: 7*4kB (UME) 4*8kB (UME) 6*16kB (UME) 3*32kB (ME) 5*64kB (UME) 5*128kB (ME) 5*256kB (ME) 5*512kB (UME) 4*1024kB (UME) 3*2048kB (ME) 7*4096kB (M) = 43964kB [ 38.001384] Node 0 Normal: 267*4kB (UMEH) 306*8kB (MEH) 212*16kB (MH) 172*32kB (MEH) 74*64kB (MH) 52*128kB (UMH) 33*256kB (UMH) 5*512kB (UME) 2*1024kB (UH) 0*2048kB 0*4096kB = 36860kB [ 38.018037] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 38.026620] 169 total pagecache pages [ 38.030410] 0 pages in swap cache [ 38.033847] Swap cache stats: add 0, delete 0, find 0/0 [ 38.039192] Free swap = 0kB [ 38.042195] Total swap = 0kB [ 38.045204] 1965979 pages RAM [ 38.048292] 0 pages HighMem/MovableOnly [ 38.052253] 327760 pages reserved [ 38.055690] Unreclaimable slab info: [ 38.059386] Name Used Total [ 38.064910] hashtab_node 118KB 119KB [ 38.070263] ebitmap_node 382KB 385KB [ 38.075619] avtab_node 1012KB 1013KB [ 38.080979] TIPC 1KB 7KB [ 38.086334] SCTPv6 2KB 4KB [ 38.091690] DCCPv6 2KB 7KB [ 38.097057] DCCP 2KB 6KB [ 38.102517] fib6_nodes 0KB 4KB [ 38.107876] ip6_dst_cache 6KB 11KB [ 38.113900] RAWv6 9KB 19KB [ 38.119295] UDPv6 12KB 14KB [ 38.124659] TCPv6 2KB 5KB [ 38.130063] sd_ext_cdb 0KB 3KB [ 38.135437] scsi_sense_cache 74KB 136KB [ 38.140799] virtio_scsi_cmd 16KB 16KB [ 38.146157] sgpool-128 8KB 8KB [ 38.151522] sgpool-64 4KB 6KB [ 38.156882] sgpool-32 220KB 220KB [ 38.162237] sgpool-16 60KB 60KB [ 38.167606] sgpool-8 191KB 191KB [ 38.172966] cfq_io_cq 19KB 19KB [ 38.178318] cfq_queue 23KB 27KB [ 38.183685] mqueue_inode_cache 1KB 7KB [ 38.189139] nfs_commit_data 3KB 7KB [ 38.194496] nfs_write_data 34KB 37KB [ 38.199849] jbd2_inode 1KB 3KB [ 38.205214] ext4_system_zone 0KB 3KB [ 38.210577] bio-1 1KB 3KB [ 38.215932] rpc_buffers 17KB 19KB [ 38.221303] rpc_tasks 2KB 3KB [ 38.226660] UNIX 773KB 777KB [ 38.232038] tcp_bind_bucket 0KB 4KB [ 38.237415] ip_fib_trie 0KB 3KB [ 38.243458] ip_fib_alias 0KB 3KB [ 38.248841] ip_dst_cache 4KB 7KB [ 38.254214] RAW 5KB 7KB [ 38.259600] UDP 29KB 31KB [ 38.264966] TCP 7KB 7KB [ 38.270341] hugetlbfs_inode_cache 1KB 7KB [ 38.276074] eventpoll_pwq 10KB 15KB [ 38.281464] eventpoll_epi 19KB 27KB [ 38.286851] inotify_inode_mark 3KB 7KB [ 38.292327] request_queue 36KB 90KB [ 38.297700] blkdev_ioc 25KB 27KB [ 38.303163] bio-0 378KB 378KB [ 38.308551] biovec-(1<<(21-12)) 404KB 404KB [ 38.314102] biovec-64 102KB 102KB [ 38.319461] biovec-16 41KB 41KB [ 38.324819] bio_integrity_payload 0KB 4KB [ 38.330529] khugepaged_mm_slot 0KB 3KB [ 38.335974] uid_cache 0KB 3KB [ 38.341328] dmaengine-unmap-2 0KB 3KB [ 38.346680] audit_buffer 0KB 3KB [ 38.352043] skbuff_fclone_cache 134KB 135KB [ 38.357574] skbuff_head_cache 1720KB 1721KB [ 38.362933] configfs_dir_cache 0KB 4KB [ 38.368373] file_lock_cache 161KB 162KB [ 38.373725] file_lock_ctx 1KB 3KB [ 38.379506] fsnotify_mark_connector 2KB 3KB [ 38.385399] shmem_inode_cache 1045KB 1050KB [ 38.390782] task_delay_info 318KB 347KB [ 38.396140] sigqueue 369KB 370KB [ 38.401494] kernfs_node_cache 2285KB 2291KB [ 38.406846] mnt_cache 15KB 16KB [ 38.412212] filp 8380KB 8857KB [ 38.417596] names_cache 110967KB 110997KB [ 38.422983] avc_node 37KB 43KB [ 38.428370] selinux_file_security 423KB 492KB [ 38.434100] selinux_inode_security 1950KB 1952KB [ 38.439917] key_jar 3KB 7KB [ 38.445299] nsproxy 0KB 3KB [ 38.450683] vm_area_struct 18662KB 18670KB [ 38.456055] mm_struct 4518KB 4523KB [ 38.461408] fs_cache 425KB 432KB [ 38.466776] files_cache 1593KB 1597KB [ 38.472129] signal_cache 2540KB 2551KB [ 38.477568] sighand_cache 219KB 333KB [ 38.482918] task_struct 10841KB 10841KB [ 38.488271] cred_jar 2353KB 2360KB [ 38.493624] anon_vma_chain 7829KB 7835KB [ 38.498978] anon_vma 138KB 335KB [ 38.504360] pid 221KB 248KB [ 38.509728] Acpi-Operand 106KB 166KB [ 38.515499] Acpi-State 0KB 3KB [ 38.520869] Acpi-Namespace 19KB 23KB [ 38.526232] numa_policy 0KB 3KB [ 38.531588] debug_objects_cache 544KB 547KB [ 38.537121] trace_event_file 144KB 147KB [ 38.542481] ftrace_event_field 254KB 255KB [ 38.547931] pool_workqueue 24KB 28KB [ 38.553303] page->ptl 3099KB 3103KB [ 38.558717] kmalloc-262144 1032KB 1032KB [ 38.564105] kmalloc-131072 650KB 650KB [ 38.569495] kmalloc-65536 264KB 264KB [ 38.574884] kmalloc-32768 825KB 825KB [ 38.580270] kmalloc-16384 181KB 181KB [ 38.585654] kmalloc-8192 470KB 470KB [ 38.591038] kmalloc-4096 6923KB 6953KB [ 38.596427] kmalloc-2048 3247KB 3251KB [ 38.601815] kmalloc-1024 3543KB 3543KB [ 38.607185] kmalloc-512 2758KB 2763KB [ 38.612547] kmalloc-256 1954KB 2463KB [ 38.617904] kmalloc-128 407KB 527KB [ 38.623260] kmalloc-96 2060KB 2060KB [ 38.628612] kmalloc-64 2460KB 2460KB [ 38.633970] kmalloc-32 2398KB 2405KB [ 38.639325] kmalloc-192 906KB 908KB [ 38.644700] kmem_cache 101KB 105KB [ 38.650878] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 38.659516] [ 1814] 0 1814 5366 168 86016 0 -1000 udevd [ 38.667678] [ 3502] 0 3502 14298 188 118784 0 0 rsyslogd [ 38.676084] [ 3554] 0 3554 4725 50 86016 0 0 cron [ 38.684139] [ 3575] 0 3575 3735 44 65536 0 0 mcstransd [ 38.692634] [ 3599] 0 3599 12490 152 131072 0 -1000 sshd [ 38.700688] [ 3627] 0 3627 3694 41 73728 0 0 getty [ 38.708835] [ 3628] 0 3628 3694 39 77824 0 0 getty [ 38.716993] [ 3629] 0 3629 3694 42 77824 0 0 getty [ 38.725144] [ 3630] 0 3630 3694 42 77824 0 0 getty [ 38.733286] [ 3631] 0 3631 3694 40 77824 0 0 getty [ 38.741427] [ 3632] 0 3632 3694 40 77824 0 0 getty [ 38.749569] [ 3633] 0 3633 3649 39 77824 0 0 getty [ 38.757753] [ 3635] 0 3635 5679 455 86016 0 -1000 udevd [ 38.765924] [ 3636] 0 3636 5679 455 86016 0 -1000 udevd [ 38.774091] [ 3652] 0 3652 17821 196 180224 0 0 sshd [ 38.782164] [ 3655] 0 3655 237 1 24576 0 0 syzkaller224616 [ 38.791179] [ 3656] 0 3656 4332 0 24576 0 0 syzkaller224616 [ 38.800192] [ 3657] 0 3657 4332 0 24576 0 0 syzkaller224616 [ 38.809204] [ 3658] 0 3658 4332 521 28672 0 0 syzkaller224616 [ 38.818216] [ 3659] 0 3659 4332 521 28672 0 0 syzkaller224616 [ 38.827225] [ 3660] 0 3660 4332 521 28672 0 0 syzkaller224616 [ 38.836235] [ 3661] 0 3661 4332 521 28672 0 0 syzkaller224616 [ 38.845245] [ 3662] 0 3662 4332 521 28672 0 0 syzkaller224616 [ 38.854265] [ 3663] 0 3663 4332 521 28672 0 0 syzkaller224616 [ 38.863274] Out of memory: Kill process 3658 (syzkaller224616) score 0 or sacrifice child [ 38.871645] Killed process 3658 (syzkaller224616) total-vm:17328kB, anon-rss:2084kB, file-rss:0kB, shmem-rss:0kB [ 38.884517] oom_reaper: reaped process 3658 (syzkaller224616), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 38.896202] syzkaller224616 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 38.909339] syzkaller224616 cpuset=/ mems_allowed=0 [ 38.914384] CPU: 0 PID: 3662 Comm: syzkaller224616 Not tainted 4.15.0-rc8+ #173 [ 38.921810] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.931149] Call Trace: [ 38.933735] dump_stack+0x194/0x257 [ 38.937361] ? arch_local_irq_restore+0x53/0x53 [ 38.942019] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 38.947293] dump_header+0x28c/0xe1e [ 38.950997] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 38.956165] ? print_irqtrace_events+0x270/0x270 [ 38.960986] ? pagefault_out_of_memory+0x152/0x152 [ 38.965890] ? check_noncircular+0x20/0x20 [ 38.970098] ? print_irqtrace_events+0x270/0x270 [ 38.974831] ? __lock_acquire+0x664/0x3e00 [ 38.979050] ? check_noncircular+0x20/0x20 [ 38.983282] ? find_held_lock+0x35/0x1d0 [ 38.987343] ? check_noncircular+0x20/0x20 [ 38.991567] ? task_will_free_mem+0x252/0xaa0 [ 38.996049] ? print_irqtrace_events+0x270/0x270 [ 39.000787] ? ___ratelimit+0x30d/0x630 [ 39.004735] ? lock_downgrade+0x980/0x980 [ 39.008860] ? lock_release+0xa40/0xa40 [ 39.012813] ? mark_held_locks+0xaf/0x100 [ 39.016938] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 39.022016] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 39.027016] ? trace_hardirqs_on+0xd/0x10 [ 39.031161] ? ___ratelimit+0x95/0x630 [ 39.035050] ? idr_get_free_cmn+0xfd0/0xfd0 [ 39.039367] ? check_noncircular+0x20/0x20 [ 39.043582] ? find_held_lock+0x138/0x1d0 [ 39.047710] oom_kill_process+0x8b5/0x14a0 [ 39.051918] ? has_ns_capability_noaudit+0x163/0x2a0 [ 39.057002] ? lock_downgrade+0x980/0x980 [ 39.061154] ? oom_evaluate_task+0x480/0x480 [ 39.065557] ? security_capable_noaudit+0x8b/0xc0 [ 39.070379] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 39.075456] ? has_capability+0x30/0x30 [ 39.079404] ? do_raw_spin_trylock+0x190/0x190 [ 39.083956] ? check_noncircular+0x20/0x20 [ 39.088172] ? has_capability_noaudit+0x24/0x30 [ 39.092812] ? oom_badness+0xd1/0x980 [ 39.096580] ? lock_release+0xa40/0xa40 [ 39.100527] ? do_try_to_free_pages+0xc53/0x1020 [ 39.105277] ? find_lock_task_mm+0x460/0x460 [ 39.109660] ? find_held_lock+0x35/0x1d0 [ 39.113697] ? out_of_memory+0xb3a/0x1220 [ 39.117816] ? lock_downgrade+0x980/0x980 [ 39.121938] ? lock_release+0xa40/0xa40 [ 39.125884] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 39.130790] ? oom_evaluate_task+0x284/0x480 [ 39.135179] out_of_memory+0x86d/0x1220 [ 39.139135] ? oom_killer_disable+0x310/0x310 [ 39.144181] ? mutex_trylock+0x23a/0x2d0 [ 39.148222] ? __lock_is_held+0xb6/0x140 [ 39.152254] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 39.157689] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 39.162527] ? warn_alloc+0x2b0/0x2b0 [ 39.166300] ? lock_release+0xa40/0xa40 [ 39.170249] ? print_irqtrace_events+0x270/0x270 [ 39.174980] ? find_held_lock+0x35/0x1d0 [ 39.179029] ? __mutex_lock+0x5bd/0x1a80 [ 39.183075] ? __lock_acquire+0x664/0x3e00 [ 39.187298] ? lock_release+0xa40/0xa40 [ 39.191251] ? do_raw_spin_trylock+0x190/0x190 [ 39.195809] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 39.200981] ? __lock_is_held+0xb6/0x140 [ 39.205039] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 39.210892] ? find_held_lock+0x35/0x1d0 [ 39.214932] ? __might_sleep+0x95/0x190 [ 39.218881] __alloc_pages_nodemask+0x9fb/0xd80 [ 39.223519] ? lock_release+0xa40/0xa40 [ 39.227466] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 39.232464] ? pcpu_chunk_refresh_hint+0x425/0x570 [ 39.237367] ? print_irqtrace_events+0x270/0x270 [ 39.242100] ? __lock_is_held+0xb6/0x140 [ 39.246139] ? find_next_bit+0x27/0x30 [ 39.250006] pcpu_populate_chunk+0x1b3/0x880 [ 39.254401] pcpu_alloc+0x978/0x10e0 [ 39.258096] ? pcpu_free_area+0xa00/0xa00 [ 39.262218] ? vmap_page_range_noflush+0x523/0x720 [ 39.267134] ? retint_kernel+0x10/0x10 [ 39.270995] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 39.275996] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 39.280739] ? retint_kernel+0x10/0x10 [ 39.284611] __alloc_percpu_gfp+0x27/0x30 [ 39.288740] array_map_alloc+0x778/0xa00 [ 39.292785] SyS_bpf+0x7f8/0x4400 [ 39.296216] ? bpf_prog_get+0x20/0x20 [ 39.299992] ? __lock_acquire+0x664/0x3e00 [ 39.304214] ? perf_event_fork+0x30/0x30 [ 39.308266] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 39.313427] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 39.318592] ? vma_wants_writenotify+0x51/0x3b0 [ 39.323238] ? vma_wants_writenotify+0x3b0/0x3b0 [ 39.327966] ? vma_link+0xe9/0x170 [ 39.331482] ? mmap_region+0x52e/0x15a0 [ 39.335449] ? find_held_lock+0x35/0x1d0 [ 39.339483] ? check_noncircular+0x20/0x20 [ 39.343694] ? __handle_mm_fault+0x80e/0x3ce0 [ 39.348166] ? check_noncircular+0x20/0x20 [ 39.352368] ? __pmd_alloc+0x4e0/0x4e0 [ 39.356233] ? find_held_lock+0x35/0x1d0 [ 39.360271] ? handle_mm_fault+0x248/0x8d0 [ 39.364480] ? find_held_lock+0x35/0x1d0 [ 39.368603] ? __do_page_fault+0x5f7/0xc90 [ 39.372810] ? lock_downgrade+0x980/0x980 [ 39.376936] ? handle_mm_fault+0x410/0x8d0 [ 39.381141] ? down_read_trylock+0xdb/0x170 [ 39.385435] ? __do_page_fault+0x32d/0xc90 [ 39.389642] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 39.394194] ? vmacache_find+0x5f/0x280 [ 39.398138] ? vmacache_update+0xfe/0x130 [ 39.402265] ? up_read+0x1a/0x40 [ 39.405610] ? do_fast_syscall_32+0x156/0xf9d [ 39.410077] ? bpf_prog_get+0x20/0x20 [ 39.413847] do_fast_syscall_32+0x3ee/0xf9d [ 39.418151] ? do_int80_syscall_32+0x9d0/0x9d0 [ 39.422704] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 39.427442] ? syscall_return_slowpath+0x2ad/0x550 [ 39.432350] ? prepare_exit_to_usermode+0x340/0x340 [ 39.437340] ? retint_user+0x18/0x18 [ 39.441036] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 39.445870] entry_SYSENTER_compat+0x54/0x63 [ 39.450250] RIP: 0023:0xf7f5ac79 [ 39.453585] RSP: 002b:00000000ffbe874c EFLAGS: 00000282 ORIG_RAX: 0000000000000165 [ 39.461263] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000020c47fec [ 39.468502] RDX: 000000000000002c RSI: 00000000080ea00c RDI: 000000000000003f [ 39.475742] RBP: 00000000ffbe8798 R08: 0000000000000000 R09: 0000000000000000 [ 39.482983] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 39.490225] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 39.497565] Mem-Info: [ 39.500251] active_anon:4537 inactive_anon:63 isolated_anon:0 [ 39.500251] active_file:20 inactive_file:52 isolated_file:0 [ 39.500251] unevictable:0 dirty:0 writeback:0 unstable:0 [ 39.500251] slab_reclaimable:7290 slab_unreclaimable:83152 [ 39.500251] mapped:28 shmem:70 pagetables:295 bounce:0 [ 39.500251] free:24172 free_pcp:0 free_cma:0 [ 39.532402] Node 0 active_anon:18148kB inactive_anon:252kB active_file:80kB inactive_file:104kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:112kB dirty:0kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 12288kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 39.559475] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 39.585601] lowmem_reserve[]: 0 2870 6381 6381 [ 39.590210] Node 0 DMA32 free:43964kB min:30332kB low:37912kB high:45492kB active_anon:24kB inactive_anon:0kB 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 [ 39.617462] lowmem_reserve[]: 0 0 3510 3510 [ 39.621795] Node 0 Normal free:36816kB min:37084kB low:46352kB high:55620kB active_anon:18124kB inactive_anon:252kB active_file:112kB inactive_file:0kB unevictable:0kB writepending:0kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3040kB pagetables:1180kB bounce:0kB free_pcp:44kB local_pcp:0kB free_cma:0kB [ 39.650366] lowmem_reserve[]: 0 0 0 0 [ 39.654193] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 39.667823] Node 0 DMA32: 7*4kB (UME) 4*8kB (UME) 6*16kB (UME) 3*32kB (ME) 5*64kB (UME) 5*128kB (ME) 5*256kB (ME) 5*512kB (UME) 4*1024kB (UME) 3*2048kB (ME) 7*4096kB (M) = 43964kB [ 39.684032] Node 0 Normal: 389*4kB (UMH) 303*8kB (UMEH) 213*16kB (UMEH) 173*32kB (UMEH) 77*64kB (MH) 52*128kB (UMH) 32*256kB (MH) 4*512kB (ME) 2*1024kB (UH) 0*2048kB 0*4096kB = 36796kB [ 39.700727] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 39.709330] 131 total pagecache pages [ 39.713393] 0 pages in swap cache [ 39.716863] Swap cache stats: add 0, delete 0, find 0/0 [ 39.722230] Free swap = 0kB [ 39.725239] Total swap = 0kB [ 39.728945] 1965979 pages RAM [ 39.732053] 0 pages HighMem/MovableOnly [ 39.736034] 327760 pages reserved [ 39.739487] Unreclaimable slab info: [ 39.743192] Name Used Total [ 39.748809] hashtab_node 118KB 119KB [ 39.754170] ebitmap_node 382KB 385KB [ 39.759526] avtab_node 1012KB 1013KB [ 39.764887] TIPC 1KB 7KB [ 39.770251] SCTPv6 2KB 4KB [ 39.775610] DCCPv6 2KB 7KB [ 39.780971] DCCP 2KB 6KB [ 39.786342] fib6_nodes 0KB 4KB [ 39.791698] ip6_dst_cache 6KB 11KB [ 39.797064] RAWv6 9KB 19KB [ 39.802423] UDPv6 12KB 14KB [ 39.807783] TCPv6 2KB 5KB [ 39.813153] sd_ext_cdb 0KB 3KB [ 39.818508] scsi_sense_cache 71KB 136KB [ 39.823866] virtio_scsi_cmd 16KB 16KB [ 39.829225] sgpool-128 8KB 8KB [ 39.834579] sgpool-64 4KB 6KB [ 39.839936] sgpool-32 291KB 291KB [ 39.845291] sgpool-16 71KB 71KB [ 39.850648] sgpool-8 198KB 198KB [ 39.856041] cfq_io_cq 18KB 19KB [ 39.861428] cfq_queue 27KB 27KB [ 39.866794] mqueue_inode_cache 1KB 7KB [ 39.872241] nfs_commit_data 3KB 7KB [ 39.877603] nfs_write_data 34KB 37KB [ 39.882965] jbd2_inode 1KB 3KB [ 39.888329] ext4_system_zone 0KB 3KB [ 39.893709] bio-1 1KB 3KB [ 39.899084] rpc_buffers 17KB 19KB [ 39.904461] rpc_tasks 2KB 3KB [ 39.909823] UNIX 773KB 777KB [ 39.915185] tcp_bind_bucket 0KB 4KB [ 39.920549] ip_fib_trie 0KB 3KB [ 39.925908] ip_fib_alias 0KB 3KB [ 39.931268] ip_dst_cache 4KB 7KB [ 39.936649] RAW 5KB 7KB [ 39.942047] UDP 29KB 31KB [ 39.947432] TCP 7KB 7KB [ 39.952797] hugetlbfs_inode_cache 1KB 7KB [ 39.958523] eventpoll_pwq 10KB 15KB [ 39.963893] eventpoll_epi 19KB 27KB [ 39.969268] inotify_inode_mark 3KB 7KB [ 39.974734] request_queue 36KB 90KB [ 39.980120] blkdev_ioc 25KB 27KB [ 39.985503] bio-0 405KB 405KB [ 39.990870] biovec-(1<<(21-12)) 404KB 404KB [ 39.996417] biovec-64 102KB 102KB [ 40.001780] biovec-16 48KB 48KB [ 40.007154] bio_integrity_payload 0KB 4KB [ 40.012865] khugepaged_mm_slot 0KB 3KB [ 40.018333] uid_cache 0KB 3KB [ 40.023703] dmaengine-unmap-2 0KB 3KB [ 40.029077] audit_buffer 0KB 3KB [ 40.034454] skbuff_fclone_cache 134KB 135KB [ 40.040004] skbuff_head_cache 1720KB 1721KB [ 40.045398] configfs_dir_cache 0KB 4KB [ 40.050854] file_lock_cache 161KB 162KB [ 40.056249] file_lock_ctx 1KB 3KB [ 40.061645] fsnotify_mark_connector 2KB 3KB [ 40.067534] shmem_inode_cache 1045KB 1050KB [ 40.072902] task_delay_info 318KB 347KB [ 40.078277] sigqueue 369KB 370KB [ 40.083662] kernfs_node_cache 2285KB 2291KB [ 40.089035] mnt_cache 15KB 16KB [ 40.095196] filp 8371KB 8853KB [ 40.100576] names_cache 110959KB 110997KB [ 40.105942] avc_node 37KB 43KB [ 40.111314] selinux_file_security 422KB 492KB [ 40.117033] selinux_inode_security 1950KB 1952KB [ 40.122847] key_jar 3KB 7KB [ 40.128212] nsproxy 0KB 3KB [ 40.133586] vm_area_struct 18659KB 18670KB [ 40.138967] mm_struct 4517KB 4523KB [ 40.144328] fs_cache 425KB 432KB [ 40.149699] files_cache 1593KB 1597KB [ 40.155076] signal_cache 2540KB 2551KB [ 40.160457] sighand_cache 217KB 326KB [ 40.165836] task_struct 10841KB 10841KB [ 40.171208] cred_jar 2352KB 2360KB [ 40.176576] anon_vma_chain 7828KB 7835KB [ 40.181953] anon_vma 127KB 331KB [ 40.187328] pid 221KB 248KB [ 40.192699] Acpi-Operand 106KB 166KB [ 40.198081] Acpi-State 0KB 3KB [ 40.203463] Acpi-Namespace 19KB 23KB [ 40.208842] numa_policy 0KB 3KB [ 40.214204] debug_objects_cache 543KB 547KB [ 40.219748] trace_event_file 144KB 147KB [ 40.225129] ftrace_event_field 254KB 255KB [ 40.230594] pool_workqueue 24KB 28KB [ 40.235972] page->ptl 3098KB 3103KB [ 40.241346] kmalloc-262144 1032KB 1032KB [ 40.246712] kmalloc-131072 650KB 650KB [ 40.252091] kmalloc-65536 264KB 264KB [ 40.257469] kmalloc-32768 825KB 825KB [ 40.262848] kmalloc-16384 181KB 181KB [ 40.268213] kmalloc-8192 470KB 470KB [ 40.273588] kmalloc-4096 6906KB 6944KB [ 40.278962] kmalloc-2048 3247KB 3251KB [ 40.284337] kmalloc-1024 3551KB 3551KB [ 40.289719] kmalloc-512 2758KB 2763KB [ 40.295092] kmalloc-256 1950KB 2463KB [ 40.301299] kmalloc-128 407KB 527KB [ 40.306691] kmalloc-96 2060KB 2060KB [ 40.312074] kmalloc-64 2458KB 2460KB [ 40.317452] kmalloc-32 2397KB 2405KB [ 40.322822] kmalloc-192 906KB 908KB [ 40.328194] kmem_cache 101KB 105KB [ 40.333556] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 40.342168] [ 1814] 0 1814 5366 168 86016 0 -1000 udevd [ 40.350337] [ 3502] 0 3502 14298 188 118784 0 0 rsyslogd [ 40.358776] [ 3554] 0 3554 4725 50 86016 0 0 cron [ 40.366867] [ 3575] 0 3575 3735 44 65536 0 0 mcstransd [ 40.375364] [ 3599] 0 3599 12490 152 131072 0 -1000 sshd [ 40.383443] [ 3627] 0 3627 3694 41 73728 0 0 getty [ 40.391592] [ 3628] 0 3628 3694 39 77824 0 0 getty [ 40.399764] [ 3629] 0 3629 3694 42 77824 0 0 getty [ 40.407917] [ 3630] 0 3630 3694 42 77824 0 0 getty [ 40.416086] [ 3631] 0 3631 3694 40 77824 0 0 getty [ 40.424260] [ 3632] 0 3632 3694 40 77824 0 0 getty [ 40.432439] [ 3633] 0 3633 3649 39 77824 0 0 getty [ 40.440616] [ 3635] 0 3635 5679 455 86016 0 -1000 udevd [ 40.448784] [ 3636] 0 3636 5679 455 86016 0 -1000 udevd [ 40.456956] [ 3652] 0 3652 17821 196 180224 0 0 sshd [ 40.465044] [ 3655] 0 3655 237 1 24576 0 0 syzkaller224616 [ 40.474083] [ 3656] 0 3656 4332 0 24576 0 0 syzkaller224616 [ 40.483138] [ 3657] 0 3657 4332 0 24576 0 0 syzkaller224616 [ 40.492152] [ 3658] 0 3658 4332 0 24576 0 0 syzkaller224616 [ 40.501186] [ 3659] 0 3659 4332 521 28672 0 0 syzkaller224616 [ 40.510226] [ 3660] 0 3660 4332 521 28672 0 0 syzkaller224616 [ 40.519261] [ 3661] 0 3661 4332 521 28672 0 0 syzkaller224616 [ 40.528296] [ 3662] 0 3662 4332 521 28672 0 0 syzkaller224616 [ 40.537328] [ 3663] 0 3663 4332 521 28672 0 0 syzkaller224616 [ 40.546340] Out of memory: Kill process 3659 (syzkaller224616) score 0 or sacrifice child [ 40.554686] Killed process 3659 (syzkaller224616) total-vm:17328kB, anon-rss:2084kB, file-rss:0kB, shmem-rss:0kB [ 40.567661] oom_reaper: reaped process 3659 (syzkaller224616), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 40.578366] syzkaller224616 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 40.590769] syzkaller224616 cpuset=/ mems_allowed=0 [ 40.595833] CPU: 1 PID: 3662 Comm: syzkaller224616 Not tainted 4.15.0-rc8+ #173 [ 40.603262] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.612596] Call Trace: [ 40.615181] dump_stack+0x194/0x257 [ 40.618806] ? arch_local_irq_restore+0x53/0x53 [ 40.623471] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 40.628668] dump_header+0x28c/0xe1e [ 40.632383] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 40.637569] ? print_irqtrace_events+0x270/0x270 [ 40.642320] ? pagefault_out_of_memory+0x152/0x152 [ 40.647237] ? check_noncircular+0x20/0x20 [ 40.651458] ? print_irqtrace_events+0x270/0x270 [ 40.656204] ? __lock_acquire+0x664/0x3e00 [ 40.660436] ? check_noncircular+0x20/0x20 [ 40.664678] ? find_held_lock+0x35/0x1d0 [ 40.668734] ? check_noncircular+0x20/0x20 [ 40.672952] ? task_will_free_mem+0x252/0xaa0 [ 40.677425] ? print_irqtrace_events+0x270/0x270 [ 40.682163] ? ___ratelimit+0x30d/0x630 [ 40.686112] ? lock_downgrade+0x980/0x980 [ 40.690235] ? lock_release+0xa40/0xa40 [ 40.694196] ? mark_held_locks+0xaf/0x100 [ 40.698315] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 40.703390] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 40.708386] ? trace_hardirqs_on+0xd/0x10 [ 40.712529] ? ___ratelimit+0x95/0x630 [ 40.716433] ? idr_get_free_cmn+0xfd0/0xfd0 [ 40.720749] ? check_noncircular+0x20/0x20 [ 40.724966] ? find_held_lock+0x138/0x1d0 [ 40.729109] oom_kill_process+0x8b5/0x14a0 [ 40.733345] ? has_ns_capability_noaudit+0x163/0x2a0 [ 40.738439] ? lock_downgrade+0x980/0x980 [ 40.742587] ? oom_evaluate_task+0x480/0x480 [ 40.747004] ? security_capable_noaudit+0x8b/0xc0 [ 40.751850] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 40.756937] ? has_capability+0x30/0x30 [ 40.760895] ? do_raw_spin_trylock+0x190/0x190 [ 40.765461] ? check_noncircular+0x20/0x20 [ 40.769691] ? has_capability_noaudit+0x24/0x30 [ 40.774344] ? oom_badness+0xd1/0x980 [ 40.778126] ? lock_release+0xa40/0xa40 [ 40.782092] ? do_try_to_free_pages+0xc53/0x1020 [ 40.786841] ? find_lock_task_mm+0x460/0x460 [ 40.791247] ? find_held_lock+0x35/0x1d0 [ 40.795309] ? out_of_memory+0xb3a/0x1220 [ 40.799448] ? lock_downgrade+0x980/0x980 [ 40.803590] ? lock_release+0xa40/0xa40 [ 40.807556] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 40.812487] ? oom_evaluate_task+0x284/0x480 [ 40.816893] out_of_memory+0x86d/0x1220 [ 40.820855] ? oom_killer_disable+0x310/0x310 [ 40.825326] ? mutex_trylock+0x23a/0x2d0 [ 40.829373] ? __lock_is_held+0xb6/0x140 [ 40.833421] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 40.838856] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 40.843693] ? warn_alloc+0x2b0/0x2b0 [ 40.847465] ? lock_release+0xa40/0xa40 [ 40.851413] ? print_irqtrace_events+0x270/0x270 [ 40.856161] ? find_held_lock+0x35/0x1d0 [ 40.860224] ? __mutex_lock+0x5bd/0x1a80 [ 40.864295] ? __lock_acquire+0x664/0x3e00 [ 40.868519] ? lock_release+0xa40/0xa40 [ 40.872499] ? do_raw_spin_trylock+0x190/0x190 [ 40.877089] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 40.882291] ? __lock_is_held+0xb6/0x140 [ 40.886370] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 40.892238] ? find_held_lock+0x35/0x1d0 [ 40.896280] ? __might_sleep+0x95/0x190 [ 40.900232] __alloc_pages_nodemask+0x9fb/0xd80 [ 40.904871] ? lock_release+0xa40/0xa40 [ 40.908823] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 40.913818] ? pcpu_chunk_refresh_hint+0x425/0x570 [ 40.918722] ? print_irqtrace_events+0x270/0x270 [ 40.923467] ? __lock_is_held+0xb6/0x140 [ 40.927507] ? find_next_bit+0x27/0x30 [ 40.931381] pcpu_populate_chunk+0x1b3/0x880 [ 40.935774] pcpu_alloc+0x978/0x10e0 [ 40.939471] ? pcpu_free_area+0xa00/0xa00 [ 40.943594] ? vmap_page_range_noflush+0x523/0x720 [ 40.948508] ? retint_kernel+0x10/0x10 [ 40.952372] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 40.957360] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 40.962094] ? retint_kernel+0x10/0x10 [ 40.965963] __alloc_percpu_gfp+0x27/0x30 [ 40.970087] array_map_alloc+0x778/0xa00 [ 40.974126] SyS_bpf+0x7f8/0x4400 [ 40.977557] ? bpf_prog_get+0x20/0x20 [ 40.981327] ? __lock_acquire+0x664/0x3e00 [ 40.985540] ? perf_event_fork+0x30/0x30 [ 40.989578] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 40.994742] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 40.999903] ? vma_wants_writenotify+0x51/0x3b0 [ 41.004549] ? vma_wants_writenotify+0x3b0/0x3b0 [ 41.009280] ? vma_link+0xe9/0x170 [ 41.012794] ? mmap_region+0x52e/0x15a0 [ 41.016748] ? find_held_lock+0x35/0x1d0 [ 41.020788] ? check_noncircular+0x20/0x20 [ 41.025002] ? __handle_mm_fault+0x80e/0x3ce0 [ 41.029480] ? check_noncircular+0x20/0x20 [ 41.033684] ? __pmd_alloc+0x4e0/0x4e0 [ 41.037555] ? find_held_lock+0x35/0x1d0 [ 41.041594] ? handle_mm_fault+0x248/0x8d0 [ 41.045802] ? find_held_lock+0x35/0x1d0 [ 41.049842] ? __do_page_fault+0x5f7/0xc90 [ 41.054049] ? lock_downgrade+0x980/0x980 [ 41.058187] ? handle_mm_fault+0x410/0x8d0 [ 41.062389] ? down_read_trylock+0xdb/0x170 [ 41.066680] ? __do_page_fault+0x32d/0xc90 [ 41.070886] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 41.075440] ? vmacache_find+0x5f/0x280 [ 41.079385] ? vmacache_update+0xfe/0x130 [ 41.083512] ? up_read+0x1a/0x40 [ 41.086861] ? do_fast_syscall_32+0x156/0xf9d [ 41.091330] ? bpf_prog_get+0x20/0x20 [ 41.095105] do_fast_syscall_32+0x3ee/0xf9d [ 41.099412] ? do_int80_syscall_32+0x9d0/0x9d0 [ 41.103966] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 41.108704] ? syscall_return_slowpath+0x2ad/0x550 [ 41.113606] ? prepare_exit_to_usermode+0x340/0x340 [ 41.118595] ? retint_user+0x18/0x18 [ 41.122285] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 41.127110] entry_SYSENTER_compat+0x54/0x63 [ 41.131487] RIP: 0023:0xf7f5ac79 [ 41.134826] RSP: 002b:00000000ffbe874c EFLAGS: 00000282 ORIG_RAX: 0000000000000165 [ 41.142506] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000020c47fec [ 41.149747] RDX: 000000000000002c RSI: 00000000080ea00c RDI: 000000000000003f [ 41.156988] RBP: 00000000ffbe8798 R08: 0000000000000000 R09: 0000000000000000 [ 41.164230] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 41.171474] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 41.178832] Mem-Info: [ 41.181813] active_anon:4015 inactive_anon:63 isolated_anon:0 [ 41.181813] active_file:35 inactive_file:43 isolated_file:0 [ 41.181813] unevictable:0 dirty:3 writeback:0 unstable:0 [ 41.181813] slab_reclaimable:7293 slab_unreclaimable:82856 [ 41.181813] mapped:49 shmem:70 pagetables:293 bounce:0 [ 41.181813] free:24709 free_pcp:174 free_cma:0 [ 41.214062] Node 0 active_anon:16060kB inactive_anon:252kB active_file:140kB inactive_file:172kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:196kB dirty:12kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 8192kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 41.241216] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 41.267414] lowmem_reserve[]: 0 2870 6381 6381 [ 41.272004] Node 0 DMA32 free:43964kB min:30332kB low:37912kB high:45492kB active_anon:24kB inactive_anon:0kB 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 [ 41.299278] lowmem_reserve[]: 0 0 3510 3510 [ 41.303630] Node 0 Normal free:39648kB min:37084kB low:46352kB high:55620kB active_anon:16036kB inactive_anon:252kB active_file:132kB inactive_file:272kB unevictable:0kB writepending:12kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3040kB pagetables:1172kB bounce:0kB free_pcp:152kB local_pcp:0kB free_cma:0kB [ 41.333459] lowmem_reserve[]: 0 0 0 0 [ 41.337326] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 41.350981] Node 0 DMA32: 7*4kB (UME) 4*8kB (UME) 6*16kB (UME) 3*32kB (ME) 5*64kB (UME) 5*128kB (ME) 5*256kB (ME) 5*512kB (UME) 4*1024kB (UME) 3*2048kB (ME) 7*4096kB (M) = 43964kB [ 41.367275] Node 0 Normal: 245*4kB (UMH) 386*8kB (UMEH) 230*16kB (UMH) 168*32kB (UMEH) 82*64kB (UMH) 52*128kB (MEH) 33*256kB (MEH) 3*512kB (M) 2*1024kB (UH) 1*2048kB (M) 0*4096kB = 39108kB [ 41.384334] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 41.392936] 146 total pagecache pages [ 41.396769] 0 pages in swap cache [ 41.400244] Swap cache stats: add 0, delete 0, find 0/0 [ 41.405623] Free swap = 0kB [ 41.408654] Total swap = 0kB [ 41.411690] 1965979 pages RAM [ 41.414807] 0 pages HighMem/MovableOnly [ 41.418799] 327760 pages reserved [ 41.422265] Unreclaimable slab info: [ 41.425998] Name Used Total [ 41.431565] hashtab_node 118KB 119KB [ 41.436952] ebitmap_node 382KB 385KB [ 41.442345] avtab_node 1012KB 1013KB [ 41.447741] TIPC 1KB 7KB [ 41.453140] SCTPv6 2KB 4KB [ 41.458538] DCCPv6 2KB 7KB [ 41.466262] DCCP 2KB 6KB [ 41.471664] fib6_nodes 0KB 4KB [ 41.477052] ip6_dst_cache 6KB 11KB [ 41.482420] RAWv6 9KB 19KB [ 41.487778] UDPv6 12KB 14KB [ 41.493133] TCPv6 2KB 5KB [ 41.498497] sd_ext_cdb 0KB 3KB [ 41.503849] scsi_sense_cache 101KB 136KB [ 41.509203] virtio_scsi_cmd 16KB 16KB [ 41.514558] sgpool-128 8KB 8KB [ 41.519916] sgpool-64 4KB 6KB [ 41.525267] sgpool-32 480KB 480KB [ 41.530622] sgpool-16 112KB 112KB [ 41.535979] sgpool-8 258KB 258KB [ 41.541332] cfq_io_cq 17KB 19KB [ 41.546683] cfq_queue 27KB 27KB [ 41.552042] mqueue_inode_cache 1KB 7KB [ 41.557488] nfs_commit_data 3KB 7KB [ 41.562840] nfs_write_data 34KB 37KB [ 41.568528] jbd2_inode 1KB 3KB [ 41.573916] ext4_system_zone 0KB 3KB [ 41.579289] bio-1 1KB 3KB [ 41.584645] rpc_buffers 17KB 19KB [ 41.589999] rpc_tasks 2KB 3KB [ 41.595793] UNIX 773KB 777KB [ 41.601167] tcp_bind_bucket 0KB 4KB [ 41.606532] ip_fib_trie 0KB 3KB [ 41.611885] ip_fib_alias 0KB 3KB [ 41.617245] ip_dst_cache 4KB 7KB [ 41.622597] RAW 5KB 7KB [ 41.627949] UDP 29KB 31KB [ 41.633300] TCP 7KB 7KB [ 41.638652] hugetlbfs_inode_cache 1KB 7KB [ 41.644364] eventpoll_pwq 10KB 15KB [ 41.649717] eventpoll_epi 19KB 27KB [ 41.655067] inotify_inode_mark 3KB 7KB [ 41.660510] request_queue 36KB 90KB [ 41.665866] blkdev_ioc 23KB 27KB [ 41.671221] bio-0 543KB 543KB [ 41.676574] biovec-(1<<(21-12)) 429KB 429KB [ 41.682108] biovec-64 228KB 228KB [ 41.687472] biovec-16 90KB 90KB [ 41.692833] bio_integrity_payload 0KB 4KB [ 41.698537] khugepaged_mm_slot 0KB 3KB [ 41.703978] uid_cache 0KB 3KB [ 41.709342] dmaengine-unmap-2 0KB 3KB [ 41.714700] audit_buffer 0KB 3KB [ 41.720052] skbuff_fclone_cache 134KB 135KB [ 41.725579] skbuff_head_cache 1720KB 1721KB [ 41.731411] configfs_dir_cache 0KB 4KB [ 41.736857] file_lock_cache 161KB 162KB [ 41.742209] file_lock_ctx 1KB 3KB [ 41.747558] fsnotify_mark_connector 2KB 3KB [ 41.753427] shmem_inode_cache 1045KB 1050KB [ 41.758780] task_delay_info 318KB 347KB [ 41.764135] sigqueue 364KB 370KB [ 41.769486] kernfs_node_cache 2285KB 2291KB [ 41.774835] mnt_cache 15KB 16KB [ 41.780183] filp 8371KB 8853KB [ 41.785537] names_cache 110364KB 110402KB [ 41.790897] avc_node 37KB 43KB [ 41.796247] selinux_file_security 421KB 492KB [ 41.801943] selinux_inode_security 1950KB 1952KB [ 41.807725] key_jar 3KB 7KB [ 41.813075] nsproxy 0KB 3KB [ 41.818449] vm_area_struct 18658KB 18670KB [ 41.823834] mm_struct 4517KB 4523KB [ 41.829223] fs_cache 425KB 432KB [ 41.834611] files_cache 1593KB 1597KB [ 41.840039] signal_cache 2540KB 2551KB [ 41.845430] sighand_cache 215KB 326KB [ 41.850822] task_struct 10841KB 10841KB [ 41.856209] cred_jar 2352KB 2360KB [ 41.861600] anon_vma_chain 7828KB 7835KB [ 41.867848] anon_vma 125KB 331KB [ 41.873301] pid 221KB 248KB [ 41.878735] Acpi-Operand 106KB 166KB [ 41.884130] Acpi-State 0KB 3KB [ 41.889608] Acpi-Namespace 19KB 23KB [ 41.894996] numa_policy 0KB 3KB [ 41.900459] debug_objects_cache 543KB 547KB [ 41.906049] trace_event_file 144KB 147KB [ 41.911473] ftrace_event_field 254KB 255KB [ 41.916959] pool_workqueue 24KB 28KB [ 41.922361] page->ptl 3098KB 3103KB [ 41.927859] kmalloc-262144 1032KB 1032KB [ 41.933253] kmalloc-131072 650KB 650KB [ 41.938648] kmalloc-65536 264KB 264KB [ 41.944050] kmalloc-32768 825KB 825KB [ 41.949441] kmalloc-16384 181KB 181KB [ 41.954878] kmalloc-8192 470KB 470KB [ 41.960292] kmalloc-4096 6617KB 6655KB [ 41.965683] kmalloc-2048 3247KB 3251KB [ 41.971074] kmalloc-1024 3787KB 3787KB [ 41.977325] kmalloc-512 2758KB 2763KB [ 41.982716] kmalloc-256 1946KB 2463KB [ 41.988106] kmalloc-128 407KB 527KB [ 41.993494] kmalloc-96 2060KB 2060KB [ 41.998884] kmalloc-64 2458KB 2460KB [ 42.004673] kmalloc-32 2397KB 2405KB [ 42.010050] kmalloc-192 906KB 908KB [ 42.015421] kmem_cache 101KB 105KB [ 42.020775] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 42.029371] [ 1814] 0 1814 5366 168 86016 0 -1000 udevd [ 42.037507] [ 3502] 0 3502 14298 190 118784 0 0 rsyslogd [ 42.045900] [ 3554] 0 3554 4725 50 86016 0 0 cron [ 42.053951] [ 3575] 0 3575 3735 44 65536 0 0 mcstransd [ 42.062439] [ 3599] 0 3599 12490 152 131072 0 -1000 sshd [ 42.070481] [ 3627] 0 3627 3694 41 73728 0 0 getty [ 42.078615] [ 3628] 0 3628 3694 39 77824 0 0 getty [ 42.086745] [ 3629] 0 3629 3694 42 77824 0 0 getty [ 42.094876] [ 3630] 0 3630 3694 42 77824 0 0 getty [ 42.103031] [ 3631] 0 3631 3694 40 77824 0 0 getty [ 42.111175] [ 3632] 0 3632 3694 40 77824 0 0 getty [ 42.119313] [ 3633] 0 3633 3649 39 77824 0 0 getty [ 42.127452] [ 3635] 0 3635 5679 455 86016 0 -1000 udevd [ 42.135607] [ 3636] 0 3636 5679 455 86016 0 -1000 udevd [ 42.143778] [ 3652] 0 3652 17821 196 180224 0 0 sshd [ 42.151863] [ 3655] 0 3655 237 1 24576 0 0 syzkaller224616 [ 42.160891] [ 3656] 0 3656 4332 0 24576 0 0 syzkaller224616 [ 42.169916] [ 3657] 0 3657 4332 0 24576 0 0 syzkaller224616 [ 42.178959] [ 3658] 0 3658 4332 0 24576 0 0 syzkaller224616 [ 42.188011] [ 3659] 0 3659 4332 0 24576 0 0 syzkaller224616 [ 42.197064] [ 3660] 0 3660 4332 521 28672 0 0 syzkaller224616 [ 42.206080] [ 3661] 0 3661 4332 521 28672 0 0 syzkaller224616 [ 42.215113] [ 3662] 0 3662 4332 521 28672 0 0 syzkaller224616 [ 42.224151] [ 3663] 0 3663 4332 521 28672 0 0 syzkaller224616 [ 42.233199] Out of memory: Kill process 3660 (syzkaller224616) score 0 or sacrifice child [ 42.242405] Killed process 3660 (syzkaller224616) total-vm:17328kB, anon-rss:2084kB, file-rss:0kB, shmem-rss:0kB [ 42.258087] oom_reaper: reaped process 3660 (syzkaller224616), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 42.276878] udevd invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=-1000 [ 42.288435] udevd cpuset=/ mems_allowed=0 [ 42.292624] CPU: 1 PID: 1814 Comm: udevd Not tainted 4.15.0-rc8+ #173 [ 42.299182] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.308516] Call Trace: [ 42.311096] dump_stack+0x194/0x257 [ 42.314714] ? arch_local_irq_restore+0x53/0x53 [ 42.319378] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 42.324588] dump_header+0x28c/0xe1e [ 42.328304] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 42.333493] ? pagefault_out_of_memory+0x152/0x152 [ 42.338421] ? check_noncircular+0x20/0x20 [ 42.342656] ? print_irqtrace_events+0x270/0x270 [ 42.347411] ? __lock_acquire+0x664/0x3e00 [ 42.351639] ? check_noncircular+0x20/0x20 [ 42.355864] ? find_held_lock+0x35/0x1d0 [ 42.359918] ? check_noncircular+0x20/0x20 [ 42.364141] ? task_will_free_mem+0x252/0xaa0 [ 42.368631] ? print_irqtrace_events+0x270/0x270 [ 42.373390] ? ___ratelimit+0x30d/0x630 [ 42.377362] ? lock_downgrade+0x980/0x980 [ 42.381509] ? lock_release+0xa40/0xa40 [ 42.385480] ? mark_held_locks+0xaf/0x100 [ 42.389620] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 42.394717] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 42.399724] ? trace_hardirqs_on+0xd/0x10 [ 42.403855] ? ___ratelimit+0x95/0x630 [ 42.407735] ? idr_get_free_cmn+0xfd0/0xfd0 [ 42.412046] ? check_noncircular+0x20/0x20 [ 42.416271] ? find_held_lock+0x138/0x1d0 [ 42.420426] oom_kill_process+0x8b5/0x14a0 [ 42.424664] ? has_ns_capability_noaudit+0x163/0x2a0 [ 42.429753] ? lock_downgrade+0x980/0x980 [ 42.433883] ? oom_evaluate_task+0x480/0x480 [ 42.438298] ? security_capable_noaudit+0x8b/0xc0 [ 42.443139] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 42.448236] ? has_capability+0x30/0x30 [ 42.452198] ? do_raw_spin_trylock+0x190/0x190 [ 42.456769] ? check_noncircular+0x20/0x20 [ 42.460986] ? has_capability_noaudit+0x24/0x30 [ 42.465640] ? oom_badness+0xd1/0x980 [ 42.469425] ? lock_release+0xa40/0xa40 [ 42.473385] ? do_try_to_free_pages+0xc53/0x1020 [ 42.478144] ? find_lock_task_mm+0x460/0x460 [ 42.482553] ? find_held_lock+0x35/0x1d0 [ 42.486616] ? out_of_memory+0xb3a/0x1220 [ 42.490754] ? lock_downgrade+0x980/0x980 [ 42.494884] ? lock_release+0xa40/0xa40 [ 42.498834] ? lock_acquire+0x1d5/0x580 [ 42.502789] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 42.507708] ? oom_evaluate_task+0x284/0x480 [ 42.512108] out_of_memory+0x86d/0x1220 [ 42.516088] ? oom_killer_disable+0x310/0x310 [ 42.520568] ? mutex_trylock+0x23a/0x2d0 [ 42.524625] ? __lock_is_held+0xb6/0x140 [ 42.528674] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 42.534135] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 42.538971] ? trace_hardirqs_on+0xd/0x10 [ 42.543131] ? warn_alloc+0x2b0/0x2b0 [ 42.546915] ? lock_downgrade+0x980/0x980 [ 42.551059] ? __lock_is_held+0xb6/0x140 [ 42.555132] ? find_get_entry+0x53c/0x9e0 [ 42.559303] ? __lock_acquire+0x664/0x3e00 [ 42.563552] ? __lock_is_held+0xb6/0x140 [ 42.567630] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 42.573611] ? __might_sleep+0x95/0x190 [ 42.577684] __alloc_pages_nodemask+0x9fb/0xd80 [ 42.582352] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 42.587367] ? add_to_page_cache_lru+0x510/0x510 [ 42.592131] ? check_noncircular+0x20/0x20 [ 42.596355] ? check_noncircular+0x20/0x20 [ 42.600591] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 42.605367] alloc_pages_current+0xb6/0x1e0 [ 42.609694] __page_cache_alloc+0x334/0x500 [ 42.613995] ? rcu_read_lock_held+0xa9/0xc0 [ 42.618309] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 42.625679] filemap_fault+0xefc/0x1c20 [ 42.629642] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 42.634824] ? __lock_page_or_retry+0x4f0/0x4f0 [ 42.639494] ? filemap_map_pages+0x942/0x15d0 [ 42.643986] ? find_get_entries_tag+0xeb0/0xeb0 [ 42.648644] ? check_noncircular+0x20/0x20 [ 42.652864] ? check_noncircular+0x20/0x20 [ 42.657087] ? print_irqtrace_events+0x270/0x270 [ 42.661824] ? print_irqtrace_events+0x270/0x270 [ 42.666655] ? find_held_lock+0x35/0x1d0 [ 42.670728] ? lock_acquire+0x1d5/0x580 [ 42.674692] ? lock_acquire+0x1d5/0x580 [ 42.678659] ? ext4_filemap_fault+0x7a/0xad [ 42.683000] ? lock_release+0xa40/0xa40 [ 42.686957] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 42.692822] ? rcu_note_context_switch+0x710/0x710 [ 42.697734] ? __might_sleep+0x95/0x190 [ 42.701700] ? down_read+0x96/0x150 [ 42.705313] ? ext4_filemap_fault+0x7a/0xad [ 42.709633] ? __down_interruptible+0x6b0/0x6b0 [ 42.714314] ext4_filemap_fault+0x82/0xad [ 42.718452] __do_fault+0xeb/0x30f [ 42.721979] ? pte_offset_kernel+0xc7/0xc7 [ 42.726202] ? do_raw_spin_trylock+0x190/0x190 [ 42.730780] ? check_noncircular+0x20/0x20 [ 42.734994] __handle_mm_fault+0x1d8f/0x3ce0 [ 42.739398] ? __pmd_alloc+0x4e0/0x4e0 [ 42.743294] ? find_held_lock+0x35/0x1d0 [ 42.747356] ? handle_mm_fault+0x248/0x8d0 [ 42.751583] ? lock_downgrade+0x980/0x980 [ 42.755732] handle_mm_fault+0x334/0x8d0 [ 42.759856] ? down_read_trylock+0xdb/0x170 [ 42.764164] ? __do_page_fault+0x32d/0xc90 [ 42.768394] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 42.772974] ? vmacache_find+0x5f/0x280 [ 42.776931] ? find_vma+0x30/0x150 [ 42.780462] __do_page_fault+0x5c9/0xc90 [ 42.784530] ? mm_fault_error+0x2c0/0x2c0 [ 42.788689] do_page_fault+0xee/0x720 [ 42.792481] ? vfs_statx_fd+0x6f/0x90 [ 42.796276] ? __do_page_fault+0xc90/0xc90 [ 42.800500] ? SYSC_newfstat+0xa1/0xe0 [ 42.804383] ? SYSC_newfstatat+0x100/0x100 [ 42.808615] ? SyS_mmap_pgoff+0x243/0x5f0 [ 42.812761] ? entry_SYSCALL_64_fastpath+0x55/0xa0 [ 42.817677] ? page_fault+0x36/0x60 [ 42.821291] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 42.826128] ? page_fault+0x36/0x60 [ 42.829738] page_fault+0x4c/0x60 [ 42.833173] RIP: 0033:0x7fa5163a2130 [ 42.836864] RSP: 002b:00007ffd36aa0528 EFLAGS: 00010246 [ 42.842208] RAX: ffffffffffffffff RBX: 000000000118bc70 RCX: 0000000000000000 [ 42.849462] RDX: 000000000118bcf4 RSI: 000000000118bcf3 RDI: 000000000118bc70 [ 42.856719] RBP: 0000000000003fff R08: 00000000ffffffff R09: 0000000000000000 [ 42.863969] R10: 0000000000000022 R11: 0000000000000246 R12: 000000000000000a [ 42.871220] R13: 0000000000000000 R14: 0000000000000000 R15: 00007ffd36aa0a00 [ 42.878603] Mem-Info: [ 42.881906] active_anon:3499 inactive_anon:62 isolated_anon:0 [ 42.881906] active_file:14 inactive_file:13 isolated_file:0 [ 42.881906] unevictable:0 dirty:0 writeback:0 unstable:0 [ 42.881906] slab_reclaimable:7303 slab_unreclaimable:82652 [ 42.881906] mapped:3 shmem:70 pagetables:292 bounce:0 [ 42.881906] free:21230 free_pcp:33 free_cma:0 [ 42.913999] Node 0 active_anon:13996kB inactive_anon:248kB active_file:56kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:12kB dirty:0kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 6144kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 42.940934] 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 [ 42.967092] lowmem_reserve[]: 0 2870 6381 6381 [ 42.971706] Node 0 DMA32 free:43964kB min:30332kB low:37912kB high:45492kB active_anon:24kB inactive_anon:0kB 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 [ 42.999066] lowmem_reserve[]: 0 0 3510 3510 [ 43.003446] Node 0 Normal free:25048kB min:37084kB low:46352kB high:55620kB active_anon:13972kB inactive_anon:248kB active_file:52kB inactive_file:48kB unevictable:0kB writepending:0kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3040kB pagetables:1168kB bounce:0kB free_pcp:132kB local_pcp:0kB free_cma:0kB [ 43.032953] lowmem_reserve[]: 0 0 0 0 [ 43.036803] 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 [ 43.050421] Node 0 DMA32: 7*4kB (UME) 4*8kB (UME) 6*16kB (UME) 3*32kB (ME) 5*64kB (UME) 5*128kB (ME) 5*256kB (ME) 5*512kB (UME) 4*1024kB (UME) 3*2048kB (ME) 7*4096kB (M) = 43964kB [ 43.066761] Node 0 Normal: 316*4kB (UMEH) 245*8kB (MEH) 178*16kB (UMH) 133*32kB (MEH) 66*64kB (UMEH) 34*128kB (UMH) 20*256kB (UMH) 0*512kB 1*1024kB (H) 0*2048kB 0*4096kB = 25048kB [ 43.082964] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 43.091558] 97 total pagecache pages [ 43.095300] 0 pages in swap cache [ 43.098761] Swap cache stats: add 0, delete 0, find 0/0 [ 43.104130] Free swap = 0kB [ 43.107153] Total swap = 0kB [ 43.110176] 1965979 pages RAM [ 43.113285] 0 pages HighMem/MovableOnly [ 43.117252] 327760 pages reserved [ 43.120707] Unreclaimable slab info: [ 43.124423] Name Used Total [ 43.129959] hashtab_node 118KB 119KB [ 43.135313] ebitmap_node 382KB 385KB [ 43.140686] avtab_node 1012KB 1013KB [ 43.146072] TIPC 1KB 7KB [ 43.151456] SCTPv6 2KB 4KB [ 43.156818] DCCPv6 2KB 7KB [ 43.162594] DCCP 2KB 6KB [ 43.167984] fib6_nodes 0KB 4KB [ 43.173373] ip6_dst_cache 6KB 11KB [ 43.178750] RAWv6 9KB 19KB [ 43.184128] UDPv6 12KB 14KB [ 43.189492] TCPv6 2KB 5KB [ 43.194873] sd_ext_cdb 0KB 3KB [ 43.200250] scsi_sense_cache 109KB 136KB [ 43.205629] virtio_scsi_cmd 16KB 16KB [ 43.210997] sgpool-128 8KB 8KB [ 43.216363] sgpool-64 4KB 6KB [ 43.221733] sgpool-32 614KB 614KB [ 43.227109] sgpool-16 142KB 142KB [ 43.232505] sgpool-8 300KB 300KB [ 43.237866] cfq_io_cq 17KB 19KB [ 43.243215] cfq_queue 27KB 27KB [ 43.248589] mqueue_inode_cache 1KB 7KB [ 43.254050] nfs_commit_data 3KB 7KB [ 43.259427] nfs_write_data 34KB 37KB [ 43.264788] jbd2_inode 1KB 3KB [ 43.270139] ext4_system_zone 0KB 3KB [ 43.275514] bio-1 1KB 3KB [ 43.280894] rpc_buffers 17KB 19KB [ 43.286275] rpc_tasks 2KB 3KB [ 43.292133] UNIX 773KB 777KB [ 43.297505] tcp_bind_bucket 0KB 4KB [ 43.302873] ip_fib_trie 0KB 3KB [ 43.308245] ip_fib_alias 0KB 3KB [ 43.313620] ip_dst_cache 4KB 7KB [ 43.318982] RAW 5KB 7KB [ 43.324341] UDP 29KB 31KB [ 43.337699] TCP 7KB 7KB [ 43.343078] hugetlbfs_inode_cache 1KB 7KB [ 43.348788] eventpoll_pwq 10KB 15KB [ 43.354140] eventpoll_epi 19KB 27KB [ 43.359507] inotify_inode_mark 3KB 7KB [ 43.364974] request_queue 36KB 90KB [ 43.370358] blkdev_ioc 23KB 27KB [ 43.375719] bio-0 630KB 630KB [ 43.381085] biovec-(1<<(21-12)) 453KB 453KB [ 43.386632] biovec-64 259KB 259KB [ 43.392036] biovec-16 123KB 123KB [ 43.397409] bio_integrity_payload 0KB 4KB [ 43.403133] khugepaged_mm_slot 0KB 3KB [ 43.408582] uid_cache 0KB 3KB [ 43.413947] dmaengine-unmap-2 0KB 3KB [ 43.419329] audit_buffer 0KB 3KB [ 43.425498] skbuff_fclone_cache 134KB 135KB [ 43.431047] skbuff_head_cache 1720KB 1721KB [ 43.436429] configfs_dir_cache 0KB 4KB [ 43.441890] file_lock_cache 161KB 162KB [ 43.447261] file_lock_ctx 1KB 3KB [ 43.452636] fsnotify_mark_connector 2KB 3KB [ 43.458540] shmem_inode_cache 1045KB 1050KB [ 43.463901] task_delay_info 318KB 347KB [ 43.469257] sigqueue 364KB 370KB [ 43.474625] kernfs_node_cache 2285KB 2291KB [ 43.480523] mnt_cache 15KB 16KB [ 43.485898] filp 8303KB 8790KB [ 43.491272] names_cache 109769KB 109807KB [ 43.496638] avc_node 37KB 43KB [ 43.502033] selinux_file_security 421KB 492KB [ 43.507757] selinux_inode_security 1952KB 1952KB [ 43.513566] key_jar 3KB 7KB [ 43.518945] nsproxy 0KB 3KB [ 43.524331] vm_area_struct 18658KB 18670KB [ 43.529693] mm_struct 4517KB 4523KB [ 43.535063] fs_cache 425KB 432KB [ 43.540441] files_cache 1593KB 1597KB [ 43.545818] signal_cache 2540KB 2551KB [ 43.551209] sighand_cache 215KB 326KB [ 43.556986] task_struct 10841KB 10841KB [ 43.562344] cred_jar 2352KB 2360KB [ 43.567720] anon_vma_chain 7828KB 7835KB [ 43.573098] anon_vma 125KB 331KB [ 43.578477] pid 221KB 248KB [ 43.583840] Acpi-Operand 106KB 166KB [ 43.589195] Acpi-State 0KB 3KB [ 43.594566] Acpi-Namespace 19KB 23KB [ 43.599944] numa_policy 0KB 3KB [ 43.605325] debug_objects_cache 543KB 547KB [ 43.610858] trace_event_file 144KB 147KB [ 43.616212] ftrace_event_field 254KB 255KB [ 43.621667] pool_workqueue 24KB 28KB [ 43.627048] page->ptl 3098KB 3103KB [ 43.632457] kmalloc-262144 1032KB 1032KB [ 43.637818] kmalloc-131072 650KB 650KB [ 43.643172] kmalloc-65536 264KB 264KB [ 43.648538] kmalloc-32768 825KB 825KB [ 43.653911] kmalloc-16384 181KB 181KB [ 43.659284] kmalloc-8192 470KB 470KB [ 43.664652] kmalloc-4096 6328KB 6366KB [ 43.670032] kmalloc-2048 3247KB 3251KB [ 43.675413] kmalloc-1024 3850KB 3850KB [ 43.680796] kmalloc-512 2763KB 2763KB [ 43.686173] kmalloc-256 1938KB 2460KB [ 43.691949] kmalloc-128 407KB 527KB [ 43.697310] kmalloc-96 2064KB 2064KB [ 43.702680] kmalloc-64 2468KB 2468KB [ 43.708081] kmalloc-32 2397KB 2405KB [ 43.713460] kmalloc-192 912KB 912KB [ 43.718824] kmem_cache 101KB 105KB [ 43.724198] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 43.732807] [ 1814] 0 1814 5366 168 86016 0 -1000 udevd [ 43.740977] [ 3502] 0 3502 14298 190 118784 0 0 rsyslogd [ 43.749421] [ 3554] 0 3554 4725 50 86016 0 0 cron [ 43.757480] [ 3575] 0 3575 3735 44 65536 0 0 mcstransd [ 43.765978] [ 3599] 0 3599 12490 152 131072 0 -1000 sshd [ 43.774039] [ 3627] 0 3627 3694 41 73728 0 0 getty [ 43.782187] [ 3628] 0 3628 3694 39 77824 0 0 getty [ 43.790333] [ 3629] 0 3629 3694 42 77824 0 0 getty [ 43.798566] [ 3630] 0 3630 3694 42 77824 0 0 getty [ 43.806715] [ 3631] 0 3631 3694 40 77824 0 0 getty [ 43.814877] [ 3632] 0 3632 3694 40 77824 0 0 getty [ 43.823042] [ 3633] 0 3633 3649 39 77824 0 0 getty [ 43.831206] [ 3635] 0 3635 5679 455 86016 0 -1000 udevd [ 43.839351] [ 3636] 0 3636 5679 455 86016 0 -1000 udevd [ 43.847497] [ 3652] 0 3652 17821 196 180224 0 0 sshd [ 43.855581] [ 3655] 0 3655 237 1 24576 0 0 syzkaller224616 [ 43.864610] [ 3656] 0 3656 4332 0 24576 0 0 syzkaller224616 [ 43.873637] [ 3657] 0 3657 4332 0 24576 0 0 syzkaller224616 [ 43.882679] [ 3658] 0 3658 4332 0 24576 0 0 syzkaller224616 [ 43.891719] [ 3659] 0 3659 4332 0 24576 0 0 syzkaller224616 [ 43.900750] [ 3660] 0 3660 4332 0 24576 0 0 syzkaller224616 [ 43.909779] [ 3661] 0 3661 4332 521 28672 0 0 syzkaller224616 [ 43.918843] [ 3662] 0 3662 4332 521 28672 0 0 syzkaller224616 [ 43.927866] [ 3663] 0 3663 4332 521 28672 0 0 syzkaller224616 [ 43.936908] Out of memory: Kill process 3661 (syzkaller224616) score 0 or sacrifice child [ 43.946330] Killed process 3661 (syzkaller224616) total-vm:17328kB, anon-rss:2084kB, file-rss:0kB, shmem-rss:0kB [ 43.959179] oom_reaper: reaped process 3661 (syzkaller224616), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 43.969417] udevd invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=-1000 [ 43.981912] udevd cpuset=/ mems_allowed=0 [ 43.986104] CPU: 1 PID: 1814 Comm: udevd Not tainted 4.15.0-rc8+ #173 [ 43.992668] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.002080] Call Trace: [ 44.004654] dump_stack+0x194/0x257 [ 44.008258] ? arch_local_irq_restore+0x53/0x53 [ 44.012904] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 44.018072] dump_header+0x28c/0xe1e [ 44.021762] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 44.026926] ? pagefault_out_of_memory+0x152/0x152 [ 44.031825] ? check_noncircular+0x20/0x20 [ 44.036031] ? print_irqtrace_events+0x270/0x270 [ 44.040764] ? __lock_acquire+0x664/0x3e00 [ 44.044989] ? check_noncircular+0x20/0x20 [ 44.049201] ? find_held_lock+0x35/0x1d0 [ 44.053240] ? check_noncircular+0x20/0x20 [ 44.057449] ? task_will_free_mem+0x252/0xaa0 [ 44.061921] ? print_irqtrace_events+0x270/0x270 [ 44.066656] ? ___ratelimit+0x30d/0x630 [ 44.070601] ? lock_downgrade+0x980/0x980 [ 44.074726] ? lock_release+0xa40/0xa40 [ 44.078677] ? mark_held_locks+0xaf/0x100 [ 44.082799] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 44.087874] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 44.092864] ? trace_hardirqs_on+0xd/0x10 [ 44.096995] ? ___ratelimit+0x95/0x630 [ 44.100857] ? idr_get_free_cmn+0xfd0/0xfd0 [ 44.105150] ? check_noncircular+0x20/0x20 [ 44.109356] ? find_held_lock+0x138/0x1d0 [ 44.113484] oom_kill_process+0x8b5/0x14a0 [ 44.117696] ? has_ns_capability_noaudit+0x163/0x2a0 [ 44.122780] ? lock_downgrade+0x980/0x980 [ 44.126904] ? oom_evaluate_task+0x480/0x480 [ 44.131294] ? security_capable_noaudit+0x8b/0xc0 [ 44.136111] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 44.141197] ? has_capability+0x30/0x30 [ 44.145142] ? do_raw_spin_trylock+0x190/0x190 [ 44.149697] ? check_noncircular+0x20/0x20 [ 44.153910] ? has_capability_noaudit+0x24/0x30 [ 44.158557] ? oom_badness+0xd1/0x980 [ 44.162343] ? lock_release+0xa40/0xa40 [ 44.166287] ? do_try_to_free_pages+0xc53/0x1020 [ 44.171024] ? find_lock_task_mm+0x460/0x460 [ 44.175405] ? find_held_lock+0x35/0x1d0 [ 44.179444] ? out_of_memory+0xb3a/0x1220 [ 44.183563] ? lock_downgrade+0x980/0x980 [ 44.187687] ? lock_release+0xa40/0xa40 [ 44.191631] ? lock_acquire+0x1d5/0x580 [ 44.195579] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 44.200486] ? oom_evaluate_task+0x284/0x480 [ 44.204872] out_of_memory+0x86d/0x1220 [ 44.208827] ? oom_killer_disable+0x310/0x310 [ 44.213295] ? mutex_trylock+0x23a/0x2d0 [ 44.217327] ? __lock_is_held+0xb6/0x140 [ 44.221358] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 44.226792] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 44.231613] ? trace_hardirqs_on+0xd/0x10 [ 44.235747] ? warn_alloc+0x2b0/0x2b0 [ 44.239520] ? lock_downgrade+0x980/0x980 [ 44.243650] ? __lock_is_held+0xb6/0x140 [ 44.247696] ? find_get_entry+0x53c/0x9e0 [ 44.251835] ? __lock_acquire+0x664/0x3e00 [ 44.256053] ? __lock_is_held+0xb6/0x140 [ 44.260099] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 44.265964] ? __might_sleep+0x95/0x190 [ 44.269913] __alloc_pages_nodemask+0x9fb/0xd80 [ 44.274558] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 44.279544] ? add_to_page_cache_lru+0x510/0x510 [ 44.284275] ? check_noncircular+0x20/0x20 [ 44.288479] ? check_noncircular+0x20/0x20 [ 44.292691] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 44.297436] alloc_pages_current+0xb6/0x1e0 [ 44.301737] __page_cache_alloc+0x334/0x500 [ 44.306030] ? rcu_read_lock_held+0xa9/0xc0 [ 44.310324] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 44.317665] filemap_fault+0xefc/0x1c20 [ 44.321613] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 44.326784] ? __lock_page_or_retry+0x4f0/0x4f0 [ 44.331438] ? filemap_map_pages+0x942/0x15d0 [ 44.335915] ? find_get_entries_tag+0xeb0/0xeb0 [ 44.340559] ? check_noncircular+0x20/0x20 [ 44.344768] ? check_noncircular+0x20/0x20 [ 44.348978] ? print_irqtrace_events+0x270/0x270 [ 44.353704] ? print_irqtrace_events+0x270/0x270 [ 44.358433] ? find_held_lock+0x35/0x1d0 [ 44.362477] ? lock_acquire+0x1d5/0x580 [ 44.366420] ? lock_acquire+0x1d5/0x580 [ 44.370367] ? ext4_filemap_fault+0x7a/0xad [ 44.374665] ? lock_release+0xa40/0xa40 [ 44.378608] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 44.384474] ? rcu_note_context_switch+0x710/0x710 [ 44.389379] ? __might_sleep+0x95/0x190 [ 44.393331] ? down_read+0x96/0x150 [ 44.396929] ? ext4_filemap_fault+0x7a/0xad [ 44.401225] ? __down_interruptible+0x6b0/0x6b0 [ 44.405882] ext4_filemap_fault+0x82/0xad [ 44.410006] __do_fault+0xeb/0x30f [ 44.413519] ? pte_offset_kernel+0xc7/0xc7 [ 44.417729] ? do_raw_spin_trylock+0x190/0x190 [ 44.422286] ? check_noncircular+0x20/0x20 [ 44.426497] __handle_mm_fault+0x1d8f/0x3ce0 [ 44.430881] ? __pmd_alloc+0x4e0/0x4e0 [ 44.434745] ? find_held_lock+0x35/0x1d0 [ 44.438786] ? handle_mm_fault+0x248/0x8d0 [ 44.443002] ? lock_downgrade+0x980/0x980 [ 44.447143] handle_mm_fault+0x334/0x8d0 [ 44.451172] ? down_read_trylock+0xdb/0x170 [ 44.455463] ? __do_page_fault+0x32d/0xc90 [ 44.459667] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 44.464217] ? vmacache_find+0x5f/0x280 [ 44.468170] ? find_vma+0x30/0x150 [ 44.471687] __do_page_fault+0x5c9/0xc90 [ 44.475728] ? mm_fault_error+0x2c0/0x2c0 [ 44.479857] do_page_fault+0xee/0x720 [ 44.483627] ? vfs_statx_fd+0x6f/0x90 [ 44.487400] ? __do_page_fault+0xc90/0xc90 [ 44.491606] ? SYSC_newfstat+0xa1/0xe0 [ 44.495472] ? SYSC_newfstatat+0x100/0x100 [ 44.499682] ? SyS_mmap_pgoff+0x243/0x5f0 [ 44.503804] ? entry_SYSCALL_64_fastpath+0x55/0xa0 [ 44.508712] ? page_fault+0x36/0x60 [ 44.512322] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 44.517142] ? page_fault+0x36/0x60 [ 44.520743] page_fault+0x4c/0x60 [ 44.524176] RIP: 0033:0x7fa5163a2130 [ 44.527861] RSP: 002b:00007ffd36aa0528 EFLAGS: 00010246 [ 44.533196] RAX: ffffffffffffffff RBX: 000000000118bc70 RCX: 0000000000000000 [ 44.540446] RDX: 000000000118bcf4 RSI: 000000000118bcf3 RDI: 000000000118bc70 [ 44.547689] RBP: 0000000000003fff R08: 00000000ffffffff R09: 0000000000000000 [ 44.554930] R10: 0000000000000022 R11: 0000000000000246 R12: 000000000000000a [ 44.562172] R13: 0000000000000000 R14: 0000000000000000 R15: 00007ffd36aa0a00 [ 44.569520] Mem-Info: [ 44.571978] active_anon:2982 inactive_anon:62 isolated_anon:0 [ 44.571978] active_file:27 inactive_file:11 isolated_file:13 [ 44.571978] unevictable:0 dirty:0 writeback:0 unstable:0 [ 44.571978] slab_reclaimable:7303 slab_unreclaimable:82621 [ 44.571978] mapped:3 shmem:70 pagetables:291 bounce:0 [ 44.571978] free:21762 free_pcp:51 free_cma:0 [ 44.604149] Node 0 active_anon:11928kB inactive_anon:248kB active_file:108kB inactive_file:44kB unevictable:0kB isolated(anon):0kB isolated(file):52kB mapped:12kB dirty:0kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 4096kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 44.631353] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 44.657513] lowmem_reserve[]: 0 2870 6381 6381 [ 44.662124] Node 0 DMA32 free:43964kB min:30332kB low:37912kB high:45492kB active_anon:24kB inactive_anon:0kB active_file:0kB 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 [ 44.689409] lowmem_reserve[]: 0 0 3510 3510 [ 44.693754] Node 0 Normal free:27176kB min:37084kB low:46352kB high:55620kB active_anon:11904kB inactive_anon:248kB active_file:8kB inactive_file:44kB unevictable:0kB writepending:0kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3040kB pagetables:1164kB bounce:0kB free_pcp:204kB local_pcp:200kB free_cma:0kB [ 44.722488] lowmem_reserve[]: 0 0 0 0 [ 44.726293] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 44.739897] Node 0 DMA32: 7*4kB (UME) 4*8kB (UME) 6*16kB (UME) 3*32kB (ME) 5*64kB (UME) 5*128kB (ME) 5*256kB (ME) 5*512kB (UME) 4*1024kB (UME) 3*2048kB (ME) 7*4096kB (M) = 43964kB [ 44.756166] Node 0 Normal: 316*4kB (UMEH) 255*8kB (UMEH) 178*16kB (UMH) 133*32kB (MEH) 66*64kB (UMEH) 34*128kB (UMH) 20*256kB (UMH) 0*512kB 1*1024kB (H) 1*2048kB (M) 0*4096kB = 27176kB [ 44.772860] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 44.781437] 97 total pagecache pages [ 44.785146] 0 pages in swap cache [ 44.788584] Swap cache stats: add 0, delete 0, find 0/0 [ 44.793941] Free swap = 0kB [ 44.796947] Total swap = 0kB [ 44.799957] 1965979 pages RAM [ 44.803050] 0 pages HighMem/MovableOnly [ 44.807027] 327760 pages reserved [ 44.810481] Unreclaimable slab info: [ 44.814209] Name Used Total [ 44.819753] hashtab_node 118KB 119KB [ 44.825111] ebitmap_node 382KB 385KB [ 44.830487] avtab_node 1012KB 1013KB [ 44.835858] TIPC 1KB 7KB [ 44.841218] SCTPv6 2KB 4KB [ 44.846593] DCCPv6 2KB 7KB [ 44.851962] DCCP 2KB 6KB [ 44.857359] fib6_nodes 0KB 4KB [ 44.862723] ip6_dst_cache 11KB 11KB [ 44.868101] RAWv6 9KB 19KB [ 44.873467] UDPv6 12KB 14KB [ 44.878852] TCPv6 2KB 5KB [ 44.884226] sd_ext_cdb 0KB 3KB [ 44.889595] scsi_sense_cache 109KB 136KB [ 44.894979] virtio_scsi_cmd 16KB 16KB [ 44.900344] sgpool-128 8KB 8KB [ 44.905718] sgpool-64 4KB 6KB [ 44.911099] sgpool-32 614KB 614KB [ 44.916486] sgpool-16 142KB 142KB [ 44.921848] sgpool-8 300KB 300KB [ 44.927221] cfq_io_cq 16KB 19KB [ 44.932598] cfq_queue 25KB 27KB [ 44.937966] mqueue_inode_cache 1KB 7KB [ 44.943427] nfs_commit_data 3KB 7KB [ 44.948808] nfs_write_data 34KB 37KB [ 44.954178] jbd2_inode 1KB 3KB [ 44.959549] ext4_system_zone 0KB 3KB [ 44.964927] bio-1 1KB 3KB [ 44.970310] rpc_buffers 17KB 19KB [ 44.975676] rpc_tasks 2KB 3KB [ 44.981068] UNIX 773KB 777KB [ 44.986438] tcp_bind_bucket 0KB 4KB [ 44.991814] ip_fib_trie 0KB 3KB [ 44.997188] ip_fib_alias 0KB 3KB [ 45.002571] ip_dst_cache 4KB 7KB [ 45.007936] RAW 5KB 7KB [ 45.013308] UDP 29KB 31KB [ 45.018675] TCP 7KB 7KB [ 45.024053] hugetlbfs_inode_cache 1KB 7KB [ 45.029778] eventpoll_pwq 10KB 15KB [ 45.035151] eventpoll_epi 19KB 27KB [ 45.040515] inotify_inode_mark 3KB 7KB [ 45.045980] request_queue 33KB 67KB [ 45.051359] blkdev_ioc 22KB 27KB [ 45.056737] bio-0 630KB 630KB [ 45.062722] biovec-(1<<(21-12)) 453KB 453KB [ 45.068274] biovec-64 259KB 259KB [ 45.073639] biovec-16 123KB 123KB [ 45.079040] bio_integrity_payload 0KB 4KB [ 45.084753] khugepaged_mm_slot 0KB 3KB [ 45.090218] uid_cache 0KB 3KB [ 45.095585] dmaengine-unmap-2 0KB 3KB [ 45.100957] audit_buffer 0KB 3KB [ 45.106338] skbuff_fclone_cache 134KB 135KB [ 45.111896] skbuff_head_cache 1721KB 1721KB [ 45.117269] configfs_dir_cache 0KB 4KB [ 45.122728] file_lock_cache 161KB 162KB [ 45.128109] file_lock_ctx 1KB 3KB [ 45.133490] fsnotify_mark_connector 2KB 3KB [ 45.139388] shmem_inode_cache 1045KB 1050KB [ 45.145407] task_delay_info 318KB 347KB [ 45.150773] sigqueue 363KB 370KB [ 45.156144] kernfs_node_cache 2285KB 2291KB [ 45.161505] mnt_cache 15KB 16KB [ 45.166879] filp 8276KB 8771KB [ 45.172254] names_cache 109769KB 109798KB [ 45.177648] avc_node 37KB 43KB [ 45.183037] selinux_file_security 418KB 492KB [ 45.188766] selinux_inode_security 1952KB 1952KB [ 45.194564] key_jar 3KB 7KB [ 45.199934] nsproxy 0KB 3KB [ 45.205313] vm_area_struct 18654KB 18666KB [ 45.210695] mm_struct 4515KB 4523KB [ 45.216063] fs_cache 424KB 432KB [ 45.221433] files_cache 1592KB 1597KB [ 45.226812] signal_cache 2538KB 2551KB [ 45.232187] sighand_cache 212KB 326KB [ 45.237555] task_struct 10841KB 10841KB [ 45.242936] cred_jar 2352KB 2360KB [ 45.248300] anon_vma_chain 7827KB 7835KB [ 45.253674] anon_vma 122KB 331KB [ 45.259054] pid 221KB 248KB [ 45.264437] Acpi-Operand 106KB 166KB [ 45.269804] Acpi-Namespace 19KB 23KB [ 45.275180] numa_policy 0KB 3KB [ 45.280545] debug_objects_cache 543KB 547KB [ 45.286089] trace_event_file 144KB 147KB [ 45.291452] ftrace_event_field 254KB 255KB [ 45.296912] pool_workqueue 24KB 28KB [ 45.302291] page->ptl 3097KB 3103KB [ 45.307709] kmalloc-262144 1032KB 1032KB [ 45.313072] kmalloc-131072 650KB 650KB [ 45.318439] kmalloc-65536 264KB 264KB [ 45.323823] kmalloc-32768 825KB 825KB [ 45.329187] kmalloc-16384 181KB 181KB [ 45.334556] kmalloc-8192 470KB 470KB [ 45.339935] kmalloc-4096 6319KB 6349KB [ 45.345296] kmalloc-2048 3247KB 3251KB [ 45.350674] kmalloc-1024 3850KB 3850KB [ 45.356053] kmalloc-512 2763KB 2763KB [ 45.361433] kmalloc-256 1923KB 2441KB [ 45.366795] kmalloc-128 407KB 527KB [ 45.372690] kmalloc-96 2064KB 2064KB [ 45.378058] kmalloc-64 2468KB 2468KB [ 45.383428] kmalloc-32 2394KB 2405KB [ 45.388807] kmalloc-192 912KB 912KB [ 45.394181] kmem_cache 101KB 105KB [ 45.399551] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 45.408168] [ 1814] 0 1814 5366 168 86016 0 -1000 udevd [ 45.416407] [ 3502] 0 3502 14298 190 118784 0 0 rsyslogd [ 45.424825] [ 3554] 0 3554 4725 50 86016 0 0 cron [ 45.432886] [ 3575] 0 3575 3735 44 65536 0 0 mcstransd [ 45.441405] [ 3599] 0 3599 12490 152 131072 0 -1000 sshd [ 45.449486] [ 3627] 0 3627 3694 41 73728 0 0 getty [ 45.457657] [ 3628] 0 3628 3694 39 77824 0 0 getty [ 45.465823] [ 3629] 0 3629 3694 42 77824 0 0 getty [ 45.473987] [ 3630] 0 3630 3694 42 77824 0 0 getty [ 45.482157] [ 3631] 0 3631 3694 40 77824 0 0 getty [ 45.490306] [ 3632] 0 3632 3694 40 77824 0 0 getty [ 45.498555] [ 3633] 0 3633 3649 39 77824 0 0 getty [ 45.506711] [ 3635] 0 3635 5679 455 86016 0 -1000 udevd [ 45.514877] [ 3636] 0 3636 5679 455 86016 0 -1000 udevd [ 45.523054] [ 3652] 0 3652 17821 196 180224 0 0 sshd [ 45.531130] [ 3655] 0 3655 237 1 24576 0 0 syzkaller224616 [ 45.540159] [ 3656] 0 3656 4332 0 24576 0 0 syzkaller224616 [ 45.549196] [ 3657] 0 3657 4332 0 24576 0 0 syzkaller224616 [ 45.558215] [ 3658] 0 3658 4332 0 24576 0 0 syzkaller224616 [ 45.567258] [ 3659] 0 3659 4332 0 24576 0 0 syzkaller224616 [ 45.576294] [ 3660] 0 3660 4332 0 24576 0 0 syzkaller224616 [ 45.585312] [ 3661] 0 3661 4332 0 24576 0 0 syzkaller224616 [ 45.594336] [ 3662] 0 3662 4332 521 28672 0 0 syzkaller224616 [ 45.603368] [ 3663] 0 3663 4332 521 28672 0 0 syzkaller224616 [ 45.612389] Out of memory: Kill process 3662 (syzkaller224616) score 0 or sacrifice child [ 45.620734] Killed process 3662 (syzkaller224616) total-vm:17328kB, anon-rss:2084kB, file-rss:0kB, shmem-rss:0kB [ 45.633659] oom_reaper: reaped process 3662 (syzkaller224616), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 45.644685] rsyslogd invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=0 [ 45.656066] rsyslogd cpuset=/ mems_allowed=0 [ 45.660491] CPU: 1 PID: 3506 Comm: rsyslogd Not tainted 4.15.0-rc8+ #173 [ 45.667299] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.676626] Call Trace: [ 45.679195] dump_stack+0x194/0x257 [ 45.682796] ? arch_local_irq_restore+0x53/0x53 [ 45.687447] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 45.692615] dump_header+0x28c/0xe1e [ 45.696307] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 45.701471] ? pagefault_out_of_memory+0x152/0x152 [ 45.706369] ? check_noncircular+0x20/0x20 [ 45.710578] ? print_irqtrace_events+0x270/0x270 [ 45.715308] ? __lock_acquire+0x664/0x3e00 [ 45.719516] ? check_noncircular+0x20/0x20 [ 45.723725] ? find_held_lock+0x35/0x1d0 [ 45.727763] ? check_noncircular+0x20/0x20 [ 45.731966] ? task_will_free_mem+0x252/0xaa0 [ 45.736435] ? print_irqtrace_events+0x270/0x270 [ 45.741167] ? ___ratelimit+0x30d/0x630 [ 45.745120] ? lock_downgrade+0x980/0x980 [ 45.749242] ? lock_release+0xa40/0xa40 [ 45.753197] ? mark_held_locks+0xaf/0x100 [ 45.757320] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 45.762395] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 45.767385] ? trace_hardirqs_on+0xd/0x10 [ 45.771506] ? ___ratelimit+0x95/0x630 [ 45.775365] ? idr_get_free_cmn+0xfd0/0xfd0 [ 45.779656] ? check_noncircular+0x20/0x20 [ 45.783858] ? find_held_lock+0x138/0x1d0 [ 45.787984] oom_kill_process+0x8b5/0x14a0 [ 45.792196] ? has_ns_capability_noaudit+0x163/0x2a0 [ 45.797270] ? lock_downgrade+0x980/0x980 [ 45.801392] ? oom_evaluate_task+0x480/0x480 [ 45.805781] ? security_capable_noaudit+0x8b/0xc0 [ 45.810599] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 45.815672] ? has_capability+0x30/0x30 [ 45.819616] ? do_raw_spin_trylock+0x190/0x190 [ 45.824169] ? check_noncircular+0x20/0x20 [ 45.828390] ? has_capability_noaudit+0x24/0x30 [ 45.833029] ? oom_badness+0xd1/0x980 [ 45.836796] ? lock_release+0xa40/0xa40 [ 45.840740] ? do_try_to_free_pages+0xc53/0x1020 [ 45.845469] ? find_lock_task_mm+0x460/0x460 [ 45.849854] ? find_held_lock+0x35/0x1d0 [ 45.853892] ? out_of_memory+0xb3a/0x1220 [ 45.858013] ? lock_downgrade+0x980/0x980 [ 45.862136] ? lock_release+0xa40/0xa40 [ 45.866079] ? lock_acquire+0x1d5/0x580 [ 45.870026] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 45.874932] ? oom_evaluate_task+0x284/0x480 [ 45.879318] out_of_memory+0x86d/0x1220 [ 45.883271] ? oom_killer_disable+0x310/0x310 [ 45.887737] ? mutex_trylock+0x23a/0x2d0 [ 45.891768] ? __lock_is_held+0xb6/0x140 [ 45.895800] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 45.901229] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 45.906050] ? trace_hardirqs_on+0xd/0x10 [ 45.910183] ? warn_alloc+0x2b0/0x2b0 [ 45.913954] ? lock_downgrade+0x980/0x980 [ 45.918097] ? find_get_entry+0x53c/0x9e0 [ 45.922236] ? __lock_acquire+0x664/0x3e00 [ 45.926452] ? __lock_is_held+0xb6/0x140 [ 45.930497] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 45.936358] ? __might_sleep+0x95/0x190 [ 45.940306] __alloc_pages_nodemask+0x9fb/0xd80 [ 45.944960] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 45.949950] ? add_to_page_cache_lru+0x510/0x510 [ 45.954683] ? check_noncircular+0x20/0x20 [ 45.958889] ? check_noncircular+0x20/0x20 [ 45.963096] ? __schedule+0x8f3/0x2060 [ 45.966964] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 45.971708] alloc_pages_current+0xb6/0x1e0 [ 45.976008] __page_cache_alloc+0x334/0x500 [ 45.980303] ? rcu_read_lock_held+0xa9/0xc0 [ 45.984599] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 45.991940] filemap_fault+0xefc/0x1c20 [ 45.995889] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 46.001058] ? __lock_page_or_retry+0x4f0/0x4f0 [ 46.005708] ? filemap_map_pages+0x942/0x15d0 [ 46.010187] ? find_get_entries_tag+0xeb0/0xeb0 [ 46.014833] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 46.019997] ? check_noncircular+0x20/0x20 [ 46.024207] ? print_irqtrace_events+0x270/0x270 [ 46.028934] ? print_irqtrace_events+0x270/0x270 [ 46.033663] ? print_irqtrace_events+0x270/0x270 [ 46.038405] ? lock_acquire+0x1d5/0x580 [ 46.042349] ? lock_acquire+0x1d5/0x580 [ 46.046297] ? ext4_filemap_fault+0x7a/0xad [ 46.050606] ? __lock_acquire+0x664/0x3e00 [ 46.054828] ? lock_release+0xa40/0xa40 [ 46.058786] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 46.064658] ? rcu_note_context_switch+0x710/0x710 [ 46.069574] ? __might_sleep+0x95/0x190 [ 46.073528] ? down_read+0x96/0x150 [ 46.077130] ? ext4_filemap_fault+0x7a/0xad [ 46.081427] ? __down_interruptible+0x6b0/0x6b0 [ 46.086101] ext4_filemap_fault+0x82/0xad [ 46.090241] __do_fault+0xeb/0x30f [ 46.093776] ? pte_offset_kernel+0xc7/0xc7 [ 46.097984] ? lock_release+0xa40/0xa40 [ 46.101935] ? compat_start_thread+0x80/0x80 [ 46.106330] ? do_raw_spin_trylock+0x190/0x190 [ 46.110900] ? _raw_spin_unlock_irq+0x27/0x70 [ 46.115370] ? check_noncircular+0x20/0x20 [ 46.119585] __handle_mm_fault+0x1d8f/0x3ce0 [ 46.123974] ? __pmd_alloc+0x4e0/0x4e0 [ 46.127842] ? find_held_lock+0x35/0x1d0 [ 46.131886] ? handle_mm_fault+0x248/0x8d0 [ 46.136106] ? lock_downgrade+0x980/0x980 [ 46.140285] handle_mm_fault+0x334/0x8d0 [ 46.144332] ? down_read_trylock+0xdb/0x170 [ 46.148640] ? __do_page_fault+0x32d/0xc90 [ 46.152858] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 46.157413] ? vmacache_find+0x5f/0x280 [ 46.161367] ? find_vma+0x30/0x150 [ 46.164885] __do_page_fault+0x5c9/0xc90 [ 46.168928] ? mm_fault_error+0x2c0/0x2c0 [ 46.173053] ? avc_policy_seqno+0x9/0x20 [ 46.177095] ? exit_to_usermode_loop+0x8c/0x310 [ 46.181741] do_page_fault+0xee/0x720 [ 46.185516] ? trace_hardirqs_off+0xd/0x10 [ 46.189726] ? __do_page_fault+0xc90/0xc90 [ 46.193940] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 46.199462] ? retint_user+0x18/0x18 [ 46.203161] ? page_fault+0x36/0x60 [ 46.206764] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 46.211583] ? page_fault+0x36/0x60 [ 46.215186] page_fault+0x4c/0x60 [ 46.218620] RIP: 0033:0x41ca08 [ 46.221789] RSP: 002b:00007f1f35549d60 EFLAGS: 00010207 [ 46.227133] RAX: 0000000001a825ed RBX: 0000000001a82460 RCX: 656c6c616b7a7973 [ 46.234381] RDX: 0000000072656c6c RSI: 0000000001a4e1d9 RDI: 0000000001a825f6 [ 46.241639] RBP: 0000000000000009 R08: 0000000001a4e1d0 R09: 00007f1f37928250 [ 46.248883] R10: 20205d3932393637 R11: 00007f1f3795aa50 R12: 0000000001a4e1d0 [ 46.256133] R13: 0000000000000009 R14: 0000000000000e15 R15: 00007f1f36d7e772 [ 46.263480] Mem-Info: [ 46.266812] active_anon:2465 inactive_anon:62 isolated_anon:0 [ 46.266812] active_file:13 inactive_file:14 isolated_file:0 [ 46.266812] unevictable:0 dirty:0 writeback:0 unstable:0 [ 46.266812] slab_reclaimable:7303 slab_unreclaimable:82616 [ 46.266812] mapped:3 shmem:70 pagetables:290 bounce:0 [ 46.266812] free:22274 free_pcp:61 free_cma:0 [ 46.299617] Node 0 active_anon:9860kB inactive_anon:248kB active_file:0kB inactive_file:156kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:12kB dirty:0kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 2048kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 46.327134] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 46.354103] lowmem_reserve[]: 0 2870 6381 6381 [ 46.358734] Node 0 DMA32 free:43964kB min:30332kB low:37912kB high:45492kB active_anon:24kB inactive_anon:0kB active_file:12kB 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 [ 46.386099] lowmem_reserve[]: 0 0 3510 3510 [ 46.390462] Node 0 Normal free:29224kB min:37084kB low:46352kB high:55620kB active_anon:9836kB inactive_anon:248kB active_file:72kB inactive_file:28kB unevictable:0kB writepending:0kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3040kB pagetables:1160kB bounce:0kB free_pcp:244kB local_pcp:216kB free_cma:0kB [ 46.419222] lowmem_reserve[]: 0 0 0 0 [ 46.423062] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 46.436705] Node 0 DMA32: 7*4kB (UME) 4*8kB (UME) 6*16kB (UME) 3*32kB (ME) 5*64kB (UME) 5*128kB (ME) 5*256kB (ME) 5*512kB (UME) 4*1024kB (UME) 3*2048kB (ME) 7*4096kB (M) = 43964kB [ 46.452970] Node 0 Normal: 316*4kB (UMEH) 255*8kB (UMEH) 178*16kB (UMH) 133*32kB (MEH) 66*64kB (UMEH) 34*128kB (UMH) 20*256kB (UMH) 0*512kB 1*1024kB (H) 2*2048kB (M) 0*4096kB = 29224kB [ 46.469689] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 46.478279] 97 total pagecache pages [ 46.482033] 0 pages in swap cache [ 46.485498] Swap cache stats: add 0, delete 0, find 0/0 [ 46.490874] Free swap = 0kB [ 46.493903] Total swap = 0kB [ 46.496931] 1965979 pages RAM [ 46.500041] 0 pages HighMem/MovableOnly [ 46.504032] 327760 pages reserved [ 46.507495] Unreclaimable slab info: [ 46.511224] Name Used Total [ 46.516805] hashtab_node 118KB 119KB [ 46.522961] ebitmap_node 382KB 385KB [ 46.529061] avtab_node 1012KB 1013KB [ 46.535136] TIPC 1KB 7KB [ 46.541174] SCTPv6 2KB 4KB [ 46.546574] DCCPv6 2KB 7KB [ 46.551959] DCCP 2KB 6KB [ 46.557358] fib6_nodes 0KB 4KB [ 46.562736] ip6_dst_cache 11KB 11KB [ 46.568115] RAWv6 9KB 19KB [ 46.573517] UDPv6 12KB 14KB [ 46.578896] TCPv6 2KB 5KB [ 46.584323] sd_ext_cdb 0KB 3KB [ 46.589705] scsi_sense_cache 105KB 136KB [ 46.595070] virtio_scsi_cmd 16KB 16KB [ 46.600450] sgpool-128 8KB 8KB [ 46.605835] sgpool-64 4KB 6KB [ 46.611200] sgpool-32 612KB 614KB [ 46.616577] sgpool-16 141KB 142KB [ 46.621954] sgpool-8 297KB 300KB [ 46.627337] cfq_io_cq 15KB 19KB [ 46.632718] cfq_queue 24KB 27KB [ 46.638095] mqueue_inode_cache 1KB 7KB [ 46.643570] nfs_commit_data 3KB 7KB [ 46.648975] nfs_write_data 34KB 37KB [ 46.654366] jbd2_inode 1KB 3KB [ 46.659730] ext4_system_zone 0KB 3KB [ 46.665112] bio-1 1KB 3KB [ 46.670498] rpc_buffers 17KB 19KB [ 46.675876] rpc_tasks 2KB 3KB [ 46.681252] UNIX 773KB 777KB [ 46.686633] tcp_bind_bucket 0KB 4KB [ 46.692040] ip_fib_trie 0KB 3KB [ 46.697417] ip_fib_alias 0KB 3KB [ 46.702794] ip_dst_cache 4KB 7KB [ 46.708175] RAW 5KB 7KB [ 46.713550] UDP 29KB 31KB [ 46.718924] TCP 7KB 7KB [ 46.724303] hugetlbfs_inode_cache 1KB 7KB [ 46.730048] eventpoll_pwq 10KB 15KB [ 46.735430] eventpoll_epi 19KB 27KB [ 46.740806] inotify_inode_mark 3KB 7KB [ 46.746270] request_queue 33KB 67KB [ 46.751654] blkdev_ioc 21KB 27KB [ 46.757118] bio-0 628KB 630KB [ 46.762498] biovec-(1<<(21-12)) 453KB 453KB [ 46.768051] biovec-64 253KB 259KB [ 46.773433] biovec-16 119KB 123KB [ 46.778813] bio_integrity_payload 0KB 4KB [ 46.784544] khugepaged_mm_slot 0KB 3KB [ 46.790039] uid_cache 0KB 3KB [ 46.795419] dmaengine-unmap-2 0KB 3KB [ 46.800798] audit_buffer 0KB 3KB [ 46.806175] skbuff_fclone_cache 134KB 135KB [ 46.811731] skbuff_head_cache 1721KB 1721KB [ 46.817111] configfs_dir_cache 0KB 4KB [ 46.822582] file_lock_cache 161KB 162KB [ 46.827958] file_lock_ctx 1KB 3KB [ 46.833337] fsnotify_mark_connector 2KB 3KB [ 46.839239] shmem_inode_cache 1045KB 1050KB [ 46.844649] task_delay_info 318KB 347KB [ 46.850800] sigqueue 363KB 370KB [ 46.856914] kernfs_node_cache 2285KB 2291KB [ 46.863050] mnt_cache 15KB 16KB [ 46.869174] filp 8269KB 8760KB [ 46.874578] names_cache 109760KB 109798KB [ 46.879965] avc_node 37KB 43KB [ 46.885341] selinux_file_security 417KB 492KB [ 46.891070] selinux_inode_security 1951KB 1952KB [ 46.896886] key_jar 3KB 7KB [ 46.902249] nsproxy 0KB 3KB [ 46.907626] vm_area_struct 18651KB 18666KB [ 46.913064] mm_struct 4515KB 4523KB [ 46.918432] fs_cache 424KB 432KB [ 46.923805] files_cache 1592KB 1597KB [ 46.929183] signal_cache 2538KB 2551KB [ 46.934565] sighand_cache 212KB 326KB [ 46.939950] task_struct 10835KB 10841KB [ 46.945328] cred_jar 2351KB 2360KB [ 46.950701] anon_vma_chain 7826KB 7835KB [ 46.956072] anon_vma 121KB 331KB [ 46.961452] pid 221KB 248KB [ 46.966830] Acpi-Operand 106KB 166KB [ 46.972210] Acpi-Namespace 19KB 23KB [ 46.977585] numa_policy 0KB 3KB [ 46.982960] debug_objects_cache 543KB 547KB [ 46.988517] trace_event_file 144KB 147KB [ 46.993895] ftrace_event_field 254KB 255KB [ 46.999346] pool_workqueue 24KB 28KB [ 47.004720] page->ptl 3097KB 3103KB [ 47.010124] kmalloc-262144 1032KB 1032KB [ 47.015505] kmalloc-131072 650KB 650KB [ 47.020871] kmalloc-65536 264KB 264KB [ 47.026242] kmalloc-32768 825KB 825KB [ 47.031624] kmalloc-16384 181KB 181KB [ 47.037005] kmalloc-8192 470KB 470KB [ 47.042407] kmalloc-4096 6311KB 6349KB [ 47.047789] kmalloc-2048 3247KB 3251KB [ 47.053166] kmalloc-1024 3849KB 3850KB [ 47.058553] kmalloc-512 2763KB 2763KB [ 47.063939] kmalloc-256 1920KB 2437KB [ 47.069318] kmalloc-128 407KB 527KB [ 47.074698] kmalloc-96 2061KB 2064KB [ 47.080075] kmalloc-64 2463KB 2468KB [ 47.085456] kmalloc-32 2391KB 2405KB [ 47.090836] kmalloc-192 909KB 912KB [ 47.096214] kmem_cache 101KB 105KB [ 47.101593] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 47.110236] [ 1814] 0 1814 5366 168 86016 0 -1000 udevd [ 47.118404] [ 3502] 0 3502 14298 190 118784 0 0 rsyslogd [ 47.126830] [ 3554] 0 3554 4725 50 86016 0 0 cron [ 47.134907] [ 3575] 0 3575 3735 44 65536 0 0 mcstransd [ 47.144011] [ 3599] 0 3599 12490 152 131072 0 -1000 sshd [ 47.152104] [ 3627] 0 3627 3694 41 73728 0 0 getty [ 47.160263] [ 3628] 0 3628 3694 39 77824 0 0 getty [ 47.168427] [ 3629] 0 3629 3694 42 77824 0 0 getty [ 47.176621] [ 3630] 0 3630 3694 42 77824 0 0 getty [ 47.184781] [ 3631] 0 3631 3694 40 77824 0 0 getty [ 47.192959] [ 3632] 0 3632 3694 40 77824 0 0 getty [ 47.201120] [ 3633] 0 3633 3649 39 77824 0 0 getty [ 47.209283] [ 3635] 0 3635 5679 455 86016 0 -1000 udevd [ 47.217445] [ 3636] 0 3636 5679 455 86016 0 -1000 udevd [ 47.225615] [ 3652] 0 3652 17821 196 180224 0 0 sshd [ 47.233696] [ 3655] 0 3655 237 1 24576 0 0 syzkaller224616 [ 47.242736] [ 3656] 0 3656 4332 0 24576 0 0 syzkaller224616 [ 47.251769] [ 3657] 0 3657 4332 0 24576 0 0 syzkaller224616 [ 47.260802] [ 3658] 0 3658 4332 0 24576 0 0 syzkaller224616 [ 47.269835] [ 3659] 0 3659 4332 0 24576 0 0 syzkaller224616 [ 47.278869] [ 3660] 0 3660 4332 0 24576 0 0 syzkaller224616 [ 47.287884] [ 3661] 0 3661 4332 0 24576 0 0 syzkaller224616 [ 47.296912] [ 3662] 0 3662 4332 0 24576 0 0 syzkaller224616 [ 47.305926] [ 3663] 0 3663 4332 521 28672 0 0 syzkaller224616 [ 47.314949] Out of memory: Kill process 3663 (syzkaller224616) score 0 or sacrifice child [ 47.323302] Killed process 3663 (syzkaller224616) total-vm:17328kB, anon-rss:2084kB, file-rss:0kB, shmem-rss:0kB [ 47.335310] oom_reaper: reaped process 3663 (syzkaller224616), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 47.347750] rs:main Q:Reg invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=0 [ 47.360150] rs:main Q:Reg cpuset=/ mems_allowed=0 [ 47.365044] CPU: 1 PID: 3503 Comm: rs:main Q:Reg Not tainted 4.15.0-rc8+ #173 [ 47.372301] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.381641] Call Trace: [ 47.384223] dump_stack+0x194/0x257 [ 47.387848] ? arch_local_irq_restore+0x53/0x53 [ 47.392506] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 47.397699] dump_header+0x28c/0xe1e [ 47.401418] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 47.406598] ? pagefault_out_of_memory+0x152/0x152 [ 47.411500] ? check_noncircular+0x20/0x20 [ 47.415709] ? print_irqtrace_events+0x270/0x270 [ 47.420439] ? __lock_acquire+0x664/0x3e00 [ 47.424649] ? check_noncircular+0x20/0x20 [ 47.428862] ? print_irqtrace_events+0x270/0x270 [ 47.433594] ? check_noncircular+0x20/0x20 [ 47.437801] ? task_will_free_mem+0x252/0xaa0 [ 47.442273] ? print_irqtrace_events+0x270/0x270 [ 47.447005] ? ___ratelimit+0x30d/0x630 [ 47.450986] ? lock_downgrade+0x980/0x980 [ 47.455111] ? lock_release+0xa40/0xa40 [ 47.459061] ? mark_held_locks+0xaf/0x100 [ 47.463183] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 47.468259] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 47.473255] ? trace_hardirqs_on+0xd/0x10 [ 47.477378] ? ___ratelimit+0x95/0x630 [ 47.481239] ? idr_get_free_cmn+0xfd0/0xfd0 [ 47.485532] ? check_noncircular+0x20/0x20 [ 47.489743] ? find_held_lock+0x138/0x1d0 [ 47.493881] oom_kill_process+0x8b5/0x14a0 [ 47.498091] ? has_ns_capability_noaudit+0x163/0x2a0 [ 47.503168] ? check_noncircular+0x20/0x20 [ 47.507382] ? oom_evaluate_task+0x480/0x480 [ 47.511777] ? security_capable_noaudit+0x8b/0xc0 [ 47.516613] ? find_held_lock+0x35/0x1d0 [ 47.520671] ? check_noncircular+0x20/0x20 [ 47.524896] ? oom_unkillable_task+0x394/0x4c0 [ 47.529463] ? lock_downgrade+0x980/0x980 [ 47.533592] ? lock_release+0xa40/0xa40 [ 47.537541] ? do_try_to_free_pages+0xc53/0x1020 [ 47.542284] ? find_lock_task_mm+0x460/0x460 [ 47.546692] ? find_held_lock+0x35/0x1d0 [ 47.550743] ? out_of_memory+0xb3a/0x1220 [ 47.554869] ? lock_downgrade+0x980/0x980 [ 47.559001] ? lock_release+0xa40/0xa40 [ 47.562951] ? lock_acquire+0x1d5/0x580 [ 47.566914] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 47.571833] ? oom_evaluate_task+0x284/0x480 [ 47.576234] out_of_memory+0x86d/0x1220 [ 47.580211] ? oom_killer_disable+0x310/0x310 [ 47.584693] ? mutex_trylock+0x23a/0x2d0 [ 47.588733] ? __lock_is_held+0xb6/0x140 [ 47.592770] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 47.598222] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 47.603056] ? trace_hardirqs_on+0xd/0x10 [ 47.607192] ? warn_alloc+0x2b0/0x2b0 [ 47.610972] ? lock_downgrade+0x980/0x980 [ 47.615117] ? find_get_entry+0x53c/0x9e0 [ 47.619258] ? __lock_acquire+0x664/0x3e00 [ 47.623478] ? __lock_is_held+0xb6/0x140 [ 47.627531] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 47.633410] ? __might_sleep+0x95/0x190 [ 47.637365] __alloc_pages_nodemask+0x9fb/0xd80 [ 47.642024] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 47.647024] ? add_to_page_cache_lru+0x510/0x510 [ 47.651760] ? check_noncircular+0x20/0x20 [ 47.655989] ? check_noncircular+0x20/0x20 [ 47.660220] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 47.664977] alloc_pages_current+0xb6/0x1e0 [ 47.669278] __page_cache_alloc+0x334/0x500 [ 47.673578] ? rcu_read_lock_held+0xa9/0xc0 [ 47.677876] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 47.685222] filemap_fault+0xefc/0x1c20 [ 47.689178] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 47.694367] ? __lock_page_or_retry+0x4f0/0x4f0 [ 47.699025] ? filemap_map_pages+0x942/0x15d0 [ 47.703506] ? find_get_entries_tag+0xeb0/0xeb0 [ 47.708164] ? __unlock_page_memcg+0x72/0x100 [ 47.712654] ? check_noncircular+0x20/0x20 [ 47.716869] ? page_add_file_rmap+0x5b7/0xa90 [ 47.721345] ? balance_dirty_pages+0x3440/0x3440 [ 47.726085] ? print_irqtrace_events+0x270/0x270 [ 47.730814] ? print_irqtrace_events+0x270/0x270 [ 47.735549] ? print_irqtrace_events+0x270/0x270 [ 47.740288] ? check_noncircular+0x20/0x20 [ 47.744496] ? up_write+0x6b/0x120 [ 47.748023] ? lock_acquire+0x1d5/0x580 [ 47.751970] ? lock_acquire+0x1d5/0x580 [ 47.755920] ? ext4_filemap_fault+0x7a/0xad [ 47.760218] ? __lock_acquire+0x664/0x3e00 [ 47.764427] ? lock_release+0xa40/0xa40 [ 47.768552] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 47.774415] ? rcu_note_context_switch+0x710/0x710 [ 47.779334] ? __might_sleep+0x95/0x190 [ 47.783307] ? down_read+0x96/0x150 [ 47.786916] ? ext4_filemap_fault+0x7a/0xad [ 47.791221] ? __down_interruptible+0x6b0/0x6b0 [ 47.795883] ext4_filemap_fault+0x82/0xad [ 47.800011] __do_fault+0xeb/0x30f [ 47.803537] ? pte_offset_kernel+0xc7/0xc7 [ 47.807767] ? do_raw_spin_trylock+0x190/0x190 [ 47.812329] ? check_noncircular+0x20/0x20 [ 47.816544] __handle_mm_fault+0x1d8f/0x3ce0 [ 47.820934] ? __pmd_alloc+0x4e0/0x4e0 [ 47.824807] ? find_held_lock+0x35/0x1d0 [ 47.828857] ? handle_mm_fault+0x248/0x8d0 [ 47.833086] ? lock_downgrade+0x980/0x980 [ 47.837268] handle_mm_fault+0x334/0x8d0 [ 47.841323] ? down_read_trylock+0xdb/0x170 [ 47.845632] ? __do_page_fault+0x32d/0xc90 [ 47.849850] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 47.854413] ? vmacache_find+0x5f/0x280 [ 47.858366] ? find_vma+0x30/0x150 [ 47.861886] __do_page_fault+0x5c9/0xc90 [ 47.865921] ? vfs_write+0x374/0x510 [ 47.869631] ? mm_fault_error+0x2c0/0x2c0 [ 47.873763] ? __lock_is_held+0xb6/0x140 [ 47.877808] do_page_fault+0xee/0x720 [ 47.881594] ? __do_page_fault+0xc90/0xc90 [ 47.885813] ? __sb_end_write+0xa0/0xd0 [ 47.889767] ? fput+0xd2/0x140 [ 47.892933] ? SyS_write+0x184/0x220 [ 47.896621] ? retint_user+0x18/0x18 [ 47.900308] ? page_fault+0x36/0x60 [ 47.903909] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 47.908751] ? page_fault+0x36/0x60 [ 47.912355] page_fault+0x4c/0x60 [ 47.915783] RIP: 0033:0x437a29 [ 47.918947] RSP: 002b:00007f1f3654b500 EFLAGS: 00010293 [ 47.924283] RAX: 000000000044b250 RBX: 0000000001a5aa38 RCX: 0000000000b40000 [ 47.931530] RDX: 0000000000000002 RSI: 0000000001a61774 RDI: 0000000000000002 [ 47.938781] RBP: 0000000000000000 R08: 0000000001a61389 R09: 0000000000000000 [ 47.946035] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000001 [ 47.953470] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 47.960811] Mem-Info: [ 47.963748] active_anon:1948 inactive_anon:62 isolated_anon:0 [ 47.963748] active_file:3 inactive_file:21 isolated_file:3 [ 47.963748] unevictable:0 dirty:0 writeback:0 unstable:0 [ 47.963748] slab_reclaimable:7303 slab_unreclaimable:82616 [ 47.963748] mapped:3 shmem:70 pagetables:289 bounce:0 [ 47.963748] free:21143 free_pcp:67 free_cma:0 [ 47.995737] Node 0 active_anon:7792kB inactive_anon:248kB active_file:48kB inactive_file:60kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:12kB dirty:0kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 48.022294] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 48.049146] lowmem_reserve[]: 0 2870 6381 6381 [ 48.054492] Node 0 DMA32 free:43964kB min:30332kB low:37912kB high:45492kB active_anon:24kB inactive_anon:0kB 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 [ 48.081794] lowmem_reserve[]: 0 0 3510 3510 [ 48.086162] Node 0 Normal free:24700kB min:37084kB low:46352kB high:55620kB active_anon:7768kB inactive_anon:248kB active_file:104kB inactive_file:0kB unevictable:0kB writepending:0kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3040kB pagetables:1156kB bounce:0kB free_pcp:268kB local_pcp:244kB free_cma:0kB [ 48.115000] lowmem_reserve[]: 0 0 0 0 [ 48.118865] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 48.132591] Node 0 DMA32: 7*4kB (UME) 4*8kB (UME) 6*16kB (UME) 3*32kB (ME) 5*64kB (UME) 5*128kB (ME) 5*256kB (ME) 5*512kB (UME) 4*1024kB (UME) 3*2048kB (ME) 7*4096kB (M) = 43964kB [ 48.148800] Node 0 Normal: 295*4kB (MEH) 236*8kB (UMEH) 172*16kB (UMH) 125*32kB (MEH) 59*64kB (MEH) 31*128kB (UMH) 16*256kB (UMH) 0*512kB 1*1024kB (H) 1*2048kB (M) 0*4096kB = 24732kB [ 48.165270] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 48.173861] 97 total pagecache pages [ 48.179114] 0 pages in swap cache [ 48.183300] Swap cache stats: add 0, delete 0, find 0/0 [ 48.189409] Free swap = 0kB [ 48.193205] Total swap = 0kB [ 48.196942] 1965979 pages RAM [ 48.200069] 0 pages HighMem/MovableOnly [ 48.204053] 327760 pages reserved [ 48.207520] Unreclaimable slab info: [ 48.211232] Name Used Total [ 48.216776] hashtab_node 118KB 119KB [ 48.222150] ebitmap_node 382KB 385KB [ 48.227523] avtab_node 1012KB 1013KB [ 48.232901] TIPC 1KB 7KB [ 48.238279] SCTPv6 2KB 4KB [ 48.243675] DCCPv6 2KB 7KB [ 48.249055] DCCP 2KB 6KB [ 48.254458] fib6_nodes 0KB 4KB [ 48.259837] ip6_dst_cache 7KB 11KB [ 48.265229] RAWv6 9KB 19KB [ 48.270612] UDPv6 12KB 14KB [ 48.275995] TCPv6 2KB 5KB [ 48.281390] sd_ext_cdb 0KB 3KB [ 48.286772] scsi_sense_cache 104KB 136KB [ 48.292149] virtio_scsi_cmd 16KB 16KB [ 48.297532] sgpool-128 8KB 8KB [ 48.302912] sgpool-64 4KB 6KB [ 48.308299] sgpool-32 610KB 614KB [ 48.313681] sgpool-16 140KB 142KB [ 48.319063] sgpool-8 297KB 300KB [ 48.324450] cfq_io_cq 15KB 19KB [ 48.329826] cfq_queue 24KB 27KB [ 48.335204] mqueue_inode_cache 1KB 7KB [ 48.340674] nfs_commit_data 3KB 7KB [ 48.346056] nfs_write_data 34KB 37KB [ 48.351441] jbd2_inode 1KB 3KB [ 48.356805] ext4_system_zone 0KB 3KB [ 48.362189] bio-1 1KB 3KB [ 48.367576] rpc_buffers 17KB 19KB [ 48.372984] rpc_tasks 2KB 3KB [ 48.378698] UNIX 773KB 777KB [ 48.384084] tcp_bind_bucket 0KB 4KB [ 48.389470] ip_fib_trie 0KB 3KB [ 48.394859] ip_fib_alias 0KB 3KB [ 48.400239] ip_dst_cache 4KB 7KB [ 48.405622] RAW 5KB 7KB [ 48.411004] UDP 29KB 31KB [ 48.416393] TCP 7KB 7KB [ 48.421768] hugetlbfs_inode_cache 1KB 7KB [ 48.427482] eventpoll_pwq 10KB 15KB [ 48.432854] eventpoll_epi 19KB 27KB [ 48.438222] inotify_inode_mark 3KB 7KB [ 48.443684] request_queue 33KB 67KB [ 48.449053] blkdev_ioc 21KB 27KB [ 48.454434] bio-0 628KB 630KB [ 48.459803] biovec-(1<<(21-12)) 453KB 453KB [ 48.465352] biovec-64 252KB 259KB [ 48.470730] biovec-16 119KB 123KB [ 48.476106] bio_integrity_payload 0KB 4KB [ 48.481830] khugepaged_mm_slot 0KB 3KB [ 48.487300] uid_cache 0KB 3KB [ 48.492680] dmaengine-unmap-2 0KB 3KB [ 48.498059] audit_buffer 0KB 3KB [ 48.503444] skbuff_fclone_cache 134KB 135KB [ 48.508997] skbuff_head_cache 1720KB 1721KB [ 48.514378] configfs_dir_cache 0KB 4KB [ 48.519851] file_lock_cache 161KB 162KB [ 48.525227] file_lock_ctx 1KB 3KB [ 48.530609] fsnotify_mark_connector 2KB 3KB [ 48.536513] shmem_inode_cache 1045KB 1050KB [ 48.541897] task_delay_info 318KB 347KB [ 48.547277] sigqueue 363KB 370KB [ 48.552670] kernfs_node_cache 2285KB 2291KB [ 48.558047] mnt_cache 15KB 16KB [ 48.563427] filp 8262KB 8756KB [ 48.568810] names_cache 109752KB 109790KB [ 48.574193] avc_node 37KB 43KB [ 48.579574] selinux_file_security 417KB 492KB [ 48.585301] selinux_inode_security 1951KB 1952KB [ 48.591108] key_jar 3KB 7KB [ 48.596481] nsproxy 0KB 3KB [ 48.601841] vm_area_struct 18651KB 18666KB [ 48.607214] mm_struct 4515KB 4523KB [ 48.612594] fs_cache 424KB 432KB [ 48.617975] files_cache 1592KB 1597KB [ 48.623358] signal_cache 2538KB 2551KB [ 48.628750] sighand_cache 212KB 326KB [ 48.634130] task_struct 10835KB 10841KB [ 48.639510] cred_jar 2351KB 2360KB [ 48.644888] anon_vma_chain 7826KB 7835KB [ 48.650262] anon_vma 120KB 331KB [ 48.655640] pid 221KB 248KB [ 48.661034] Acpi-Operand 106KB 166KB [ 48.666425] Acpi-Namespace 19KB 23KB [ 48.671803] numa_policy 0KB 3KB [ 48.677186] debug_objects_cache 543KB 547KB [ 48.682737] trace_event_file 144KB 147KB [ 48.688115] ftrace_event_field 254KB 255KB [ 48.693583] pool_workqueue 24KB 28KB [ 48.698993] page->ptl 3097KB 3103KB [ 48.704400] kmalloc-262144 1032KB 1032KB [ 48.709765] kmalloc-131072 650KB 650KB [ 48.715120] kmalloc-65536 264KB 264KB [ 48.720488] kmalloc-32768 825KB 825KB [ 48.725852] kmalloc-16384 181KB 181KB [ 48.731205] kmalloc-8192 470KB 470KB [ 48.736639] kmalloc-4096 6302KB 6341KB [ 48.742007] kmalloc-2048 3247KB 3251KB [ 48.747398] kmalloc-1024 3848KB 3850KB [ 48.752768] kmalloc-512 2761KB 2763KB [ 48.758146] kmalloc-256 1916KB 2437KB [ 48.763512] kmalloc-128 407KB 527KB [ 48.768863] kmalloc-96 2064KB 2064KB [ 48.774229] kmalloc-64 2467KB 2468KB [ 48.779595] kmalloc-32 2390KB 2405KB [ 48.784950] kmalloc-192 911KB 912KB [ 48.790317] kmem_cache 101KB 105KB [ 48.795687] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 48.804293] [ 1814] 0 1814 5366 168 86016 0 -1000 udevd [ 48.812464] [ 3502] 0 3502 14298 190 118784 0 0 rsyslogd [ 48.820894] [ 3554] 0 3554 4725 50 86016 0 0 cron [ 48.828976] [ 3575] 0 3575 3735 44 65536 0 0 mcstransd [ 48.837493] [ 3599] 0 3599 12490 152 131072 0 -1000 sshd [ 48.845572] [ 3627] 0 3627 3694 41 73728 0 0 getty [ 48.853746] [ 3628] 0 3628 3694 39 77824 0 0 getty [ 48.861912] [ 3629] 0 3629 3694 42 77824 0 0 getty [ 48.870062] [ 3630] 0 3630 3694 42 77824 0 0 getty [ 48.878223] [ 3631] 0 3631 3694 40 77824 0 0 getty [ 48.886398] [ 3632] 0 3632 3694 40 77824 0 0 getty [ 48.894601] [ 3633] 0 3633 3649 39 77824 0 0 getty [ 48.902766] [ 3635] 0 3635 5679 455 86016 0 -1000 udevd [ 48.910934] [ 3636] 0 3636 5679 455 86016 0 -1000 udevd [ 48.919104] [ 3652] 0 3652 17821 196 180224 0 0 sshd [ 48.927183] [ 3655] 0 3655 237 1 24576 0 0 syzkaller224616 [ 48.936220] [ 3656] 0 3656 4332 0 24576 0 0 syzkaller224616 [ 48.945412] [ 3657] 0 3657 4332 0 24576 0 0 syzkaller224616 [ 48.954440] [ 3658] 0 3658 4332 0 24576 0 0 syzkaller224616 [ 48.963507] [ 3659] 0 3659 4332 0 24576 0 0 syzkaller224616 [ 48.972546] [ 3660] 0 3660 4332 0 24576 0 0 syzkaller224616 [ 48.981588] [ 3661] 0 3661 4332 0 24576 0 0 syzkaller224616 [ 48.990606] [ 3662] 0 3662 4332 0 24576 0 0 syzkaller224616 [ 48.999648] [ 3663] 0 3663 4332 0 24576 0 0 syzkaller224616 [ 49.008676] Out of memory: Kill process 3652 (sshd) score 0 or sacrifice child [ 49.016422] Killed process 3655 (syzkaller224616) total-vm:948kB, anon-rss:4kB, file-rss:0kB, shmem-rss:0kB [ 49.029070] udevd invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=-1000 [ 49.042130] udevd cpuset=/ mems_allowed=0 [ 49.046356] CPU: 0 PID: 1814 Comm: udevd Not tainted 4.15.0-rc8+ #173 [ 49.052945] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.062282] Call Trace: [ 49.064865] dump_stack+0x194/0x257 [ 49.068487] ? arch_local_irq_restore+0x53/0x53 [ 49.073146] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 49.078336] dump_header+0x28c/0xe1e [ 49.082075] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 49.087260] ? pagefault_out_of_memory+0x152/0x152 [ 49.092192] ? check_noncircular+0x20/0x20 [ 49.096422] ? print_irqtrace_events+0x270/0x270 [ 49.101173] ? __lock_acquire+0x664/0x3e00 [ 49.105400] ? check_noncircular+0x20/0x20 [ 49.109632] ? print_irqtrace_events+0x270/0x270 [ 49.114387] ? check_noncircular+0x20/0x20 [ 49.118607] ? task_will_free_mem+0x252/0xaa0 [ 49.123097] ? print_irqtrace_events+0x270/0x270 [ 49.127854] ? ___ratelimit+0x30d/0x630 [ 49.131818] ? lock_downgrade+0x980/0x980 [ 49.135963] ? lock_release+0xa40/0xa40 [ 49.139937] ? mark_held_locks+0xaf/0x100 [ 49.144643] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 49.149736] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 49.154739] ? trace_hardirqs_on+0xd/0x10 [ 49.158877] ? ___ratelimit+0x95/0x630 [ 49.162752] ? idr_get_free_cmn+0xfd0/0xfd0 [ 49.167062] ? check_noncircular+0x20/0x20 [ 49.171280] ? find_held_lock+0x138/0x1d0 [ 49.175432] oom_kill_process+0x8b5/0x14a0 [ 49.179670] ? has_ns_capability_noaudit+0x163/0x2a0 [ 49.184766] ? check_noncircular+0x20/0x20 [ 49.188993] ? oom_evaluate_task+0x480/0x480 [ 49.193408] ? security_capable_noaudit+0x8b/0xc0 [ 49.198246] ? find_held_lock+0x35/0x1d0 [ 49.202300] ? check_noncircular+0x20/0x20 [ 49.206526] ? oom_unkillable_task+0x394/0x4c0 [ 49.211099] ? lock_downgrade+0x980/0x980 [ 49.215239] ? lock_release+0xa40/0xa40 [ 49.219196] ? do_try_to_free_pages+0xc53/0x1020 [ 49.223944] ? find_lock_task_mm+0x460/0x460 [ 49.228355] ? find_held_lock+0x35/0x1d0 [ 49.232421] ? out_of_memory+0xb3a/0x1220 [ 49.236556] ? lock_downgrade+0x980/0x980 [ 49.240696] ? lock_release+0xa40/0xa40 [ 49.244655] ? lock_acquire+0x1d5/0x580 [ 49.248621] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 49.253553] ? oom_evaluate_task+0x284/0x480 [ 49.257958] out_of_memory+0x86d/0x1220 [ 49.261936] ? oom_killer_disable+0x310/0x310 [ 49.266418] ? mutex_trylock+0x23a/0x2d0 [ 49.270488] ? __lock_is_held+0xb6/0x140 [ 49.274540] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 49.279998] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 49.284844] ? trace_hardirqs_on+0xd/0x10 [ 49.289012] ? warn_alloc+0x2b0/0x2b0 [ 49.292804] ? lock_downgrade+0x980/0x980 [ 49.296953] ? __lock_is_held+0xb6/0x140 [ 49.301024] ? find_get_entry+0x53c/0x9e0 [ 49.305195] ? __lock_acquire+0x664/0x3e00 [ 49.309442] ? __lock_is_held+0xb6/0x140 [ 49.313529] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 49.319420] ? __might_sleep+0x95/0x190 [ 49.323392] __alloc_pages_nodemask+0x9fb/0xd80 [ 49.328059] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 49.333069] ? add_to_page_cache_lru+0x510/0x510 [ 49.337825] ? check_noncircular+0x20/0x20 [ 49.342048] ? check_noncircular+0x20/0x20 [ 49.346280] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 49.351059] alloc_pages_current+0xb6/0x1e0 [ 49.355379] __page_cache_alloc+0x334/0x500 [ 49.359692] ? rcu_read_lock_held+0xa9/0xc0 [ 49.364023] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 49.371394] filemap_fault+0xefc/0x1c20 [ 49.375360] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 49.380554] ? __lock_page_or_retry+0x4f0/0x4f0 [ 49.385226] ? filemap_map_pages+0x942/0x15d0 [ 49.389736] ? find_get_entries_tag+0xeb0/0xeb0 [ 49.394398] ? check_noncircular+0x20/0x20 [ 49.398626] ? check_noncircular+0x20/0x20 [ 49.402862] ? print_irqtrace_events+0x270/0x270 [ 49.407606] ? print_irqtrace_events+0x270/0x270 [ 49.412355] ? find_held_lock+0x35/0x1d0 [ 49.416438] ? lock_acquire+0x1d5/0x580 [ 49.420395] ? lock_acquire+0x1d5/0x580 [ 49.424365] ? ext4_filemap_fault+0x7a/0xad [ 49.428684] ? lock_release+0xa40/0xa40 [ 49.432648] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 49.438529] ? rcu_note_context_switch+0x710/0x710 [ 49.443454] ? __might_sleep+0x95/0x190 [ 49.447421] ? down_read+0x96/0x150 [ 49.451033] ? ext4_filemap_fault+0x7a/0xad [ 49.455348] ? __down_interruptible+0x6b0/0x6b0 [ 49.460027] ext4_filemap_fault+0x82/0xad [ 49.464168] __do_fault+0xeb/0x30f [ 49.467703] ? pte_offset_kernel+0xc7/0xc7 [ 49.471930] ? do_raw_spin_trylock+0x190/0x190 [ 49.476509] ? check_noncircular+0x20/0x20 [ 49.480742] __handle_mm_fault+0x1d8f/0x3ce0 [ 49.485153] ? __pmd_alloc+0x4e0/0x4e0 [ 49.489046] ? find_held_lock+0x35/0x1d0 [ 49.493108] ? handle_mm_fault+0x248/0x8d0 [ 49.497334] ? lock_downgrade+0x980/0x980 [ 49.501515] handle_mm_fault+0x334/0x8d0 [ 49.505562] ? down_read_trylock+0xdb/0x170 [ 49.509869] ? __do_page_fault+0x32d/0xc90 [ 49.514092] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 49.518662] ? vmacache_find+0x5f/0x280 [ 49.522635] ? find_vma+0x30/0x150 [ 49.526183] __do_page_fault+0x5c9/0xc90 [ 49.530336] ? mm_fault_error+0x2c0/0x2c0 [ 49.534491] do_page_fault+0xee/0x720 [ 49.538376] ? vfs_statx_fd+0x6f/0x90 [ 49.542174] ? __do_page_fault+0xc90/0xc90 [ 49.546400] ? SYSC_newfstat+0xa1/0xe0 [ 49.550291] ? SYSC_newfstatat+0x100/0x100 [ 49.554542] ? SyS_mmap_pgoff+0x243/0x5f0 [ 49.558685] ? entry_SYSCALL_64_fastpath+0x55/0xa0 [ 49.563606] ? page_fault+0x36/0x60 [ 49.567221] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 49.572056] ? page_fault+0x36/0x60 [ 49.575699] page_fault+0x4c/0x60 [ 49.579138] RIP: 0033:0x7fa5163a2130 [ 49.582836] RSP: 002b:00007ffd36aa0528 EFLAGS: 00010246 [ 49.588186] RAX: ffffffffffffffff RBX: 000000000118bc70 RCX: 0000000000000000 [ 49.595442] RDX: 000000000118bcf4 RSI: 000000000118bcf3 RDI: 000000000118bc70 [ 49.602699] RBP: 0000000000003fff R08: 00000000ffffffff R09: 0000000000000000 [ 49.609955] R10: 0000000000000022 R11: 0000000000000246 R12: 000000000000000a [ 49.617209] R13: 0000000000000000 R14: 0000000000000000 R15: 00007ffd36aa0a00 [ 49.624572] Mem-Info: [ 49.627762] active_anon:1948 inactive_anon:62 isolated_anon:0 [ 49.627762] active_file:14 inactive_file:13 isolated_file:0 [ 49.627762] unevictable:0 dirty:0 writeback:0 unstable:0 [ 49.627762] slab_reclaimable:7303 slab_unreclaimable:82607 [ 49.627762] mapped:3 shmem:70 pagetables:289 bounce:0 [ 49.627762] free:21151 free_pcp:82 free_cma:0 [ 49.660572] Node 0 active_anon:7792kB inactive_anon:248kB active_file:32kB inactive_file:76kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:12kB dirty:0kB writeback:0kB shmem:280kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 49.687761] 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 [ 49.714763] lowmem_reserve[]: 0 2870 6381 6381 [ 49.719398] Node 0 DMA32 free:43964kB min:30332kB low:37912kB high:45492kB active_anon:24kB inactive_anon:0kB active_file:0kB inactive_file:20kB 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 [ 49.746761] lowmem_reserve[]: 0 0 3510 3510 [ 49.751129] Node 0 Normal free:24732kB min:37084kB low:46352kB high:55620kB active_anon:7768kB inactive_anon:248kB active_file:28kB inactive_file:72kB unevictable:0kB writepending:0kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3008kB pagetables:1156kB bounce:0kB free_pcp:328kB local_pcp:304kB free_cma:0kB [ 49.780300] lowmem_reserve[]: 0 0 0 0 [ 49.784151] 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 [ 49.797799] Node 0 DMA32: 7*4kB (UME) 4*8kB (UME) 6*16kB (UME) 3*32kB (ME) 5*64kB (UME) 5*128kB (ME) 5*256kB (ME) 5*512kB (UME) 4*1024kB (UME) 3*2048kB (ME) 7*4096kB (M) = 43964kB [ 49.813987] Node 0 Normal: 295*4kB (MEH) 248*8kB (UMEH) 172*16kB (UMH) 126*32kB (UMEH) 59*64kB (MEH) 31*128kB (UMH) 16*256kB (UMH) 0*512kB 1*1024kB (H) 1*2048kB (M) 0*4096kB = 24860kB [ 49.830595] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 49.839176] 97 total pagecache pages [ 49.842893] 0 pages in swap cache [ 49.846350] Swap cache stats: add 0, delete 0, find 0/0 [ 49.851812] Free swap = 0kB [ 49.854826] Total swap = 0kB [ 49.857847] 1965979 pages RAM [ 49.860961] 0 pages HighMem/MovableOnly [ 49.864943] 327760 pages reserved [ 49.868410] Unreclaimable slab info: [ 49.872133] Name Used Total [ 49.877672] hashtab_node 118KB 119KB [ 49.883044] ebitmap_node 382KB 385KB [ 49.888444] avtab_node 1012KB 1013KB [ 49.893837] TIPC 1KB 7KB [ 49.899219] SCTPv6 2KB 4KB [ 49.904602] DCCPv6 2KB 7KB [ 49.909980] DCCP 2KB 6KB [ 49.915382] fib6_nodes 0KB 4KB [ 49.920760] ip6_dst_cache 6KB 11KB [ 49.926141] RAWv6 9KB 19KB [ 49.931505] UDPv6 12KB 14KB [ 49.936896] TCPv6 2KB 5KB [ 49.942293] sd_ext_cdb 0KB 3KB [ 49.947671] scsi_sense_cache 103KB 136KB [ 49.953050] virtio_scsi_cmd 16KB 16KB [ 49.958430] sgpool-128 8KB 8KB [ 49.963809] sgpool-64 4KB 6KB [ 49.969188] sgpool-32 610KB 614KB [ 49.974606] sgpool-16 140KB 142KB [ 49.981474] sgpool-8 297KB 300KB [ 49.986883] cfq_io_cq 15KB 19KB [ 49.992271] cfq_queue 24KB 27KB [ 49.997657] mqueue_inode_cache 1KB 7KB [ 50.003129] nfs_commit_data 3KB 7KB [ 50.008933] nfs_write_data 34KB 37KB [ 50.014312] jbd2_inode 1KB 3KB [ 50.019688] ext4_system_zone 0KB 3KB [ 50.025075] bio-1 1KB 3KB [ 50.030460] rpc_buffers 17KB 19KB [ 50.035836] rpc_tasks 2KB 3KB [ 50.041201] UNIX 773KB 777KB [ 50.046572] tcp_bind_bucket 0KB 4KB [ 50.051935] ip_fib_trie 0KB 3KB [ 50.057313] ip_fib_alias 0KB 3KB [ 50.062689] ip_dst_cache 4KB 7KB [ 50.068053] RAW 5KB 7KB [ 50.073425] UDP 29KB 31KB [ 50.078807] TCP 7KB 7KB [ 50.084166] hugetlbfs_inode_cache 1KB 7KB [ 50.089883] eventpoll_pwq 10KB 15KB [ 50.095242] eventpoll_epi 19KB 27KB [ 50.100611] inotify_inode_mark 3KB 7KB [ 50.106059] request_queue 31KB 45KB [ 50.111432] blkdev_ioc 21KB 27KB [ 50.116793] bio-0 628KB 630KB [ 50.122161] biovec-(1<<(21-12)) 453KB 453KB [ 50.127711] biovec-64 252KB 259KB [ 50.133091] biovec-16 119KB 123KB [ 50.138468] bio_integrity_payload 0KB 4KB [ 50.144509] khugepaged_mm_slot 0KB 3KB [ 50.149983] uid_cache 0KB 3KB [ 50.155364] dmaengine-unmap-2 0KB 3KB [ 50.160742] audit_buffer 0KB 3KB [ 50.166118] skbuff_fclone_cache 134KB 135KB [ 50.171698] skbuff_head_cache 1720KB 1721KB [ 50.177792] configfs_dir_cache 0KB 4KB [ 50.183965] file_lock_cache 161KB 162KB [ 50.189344] file_lock_ctx 1KB 3KB [ 50.194723] fsnotify_mark_connector 2KB 3KB [ 50.200609] shmem_inode_cache 1045KB 1050KB [ 50.205976] task_delay_info 318KB 347KB [ 50.211357] sigqueue 367KB 370KB [ 50.216732] kernfs_node_cache 2285KB 2291KB [ 50.222093] mnt_cache 15KB 16KB [ 50.227463] filp 8233KB 8722KB [ 50.232824] names_cache 109743KB 109773KB [ 50.238229] avc_node 37KB 43KB [ 50.243611] selinux_file_security 413KB 492KB [ 50.249338] selinux_inode_security 1951KB 1952KB [ 50.255151] key_jar 3KB 7KB [ 50.260528] nsproxy 0KB 3KB [ 50.265902] vm_area_struct 18651KB 18663KB [ 50.271263] mm_struct 4515KB 4523KB [ 50.276637] fs_cache 424KB 432KB [ 50.281996] files_cache 1592KB 1597KB [ 50.287375] signal_cache 2538KB 2551KB [ 50.292755] sighand_cache 212KB 326KB [ 50.298132] task_struct 10835KB 10835KB [ 50.303537] cred_jar 2351KB 2360KB [ 50.308913] anon_vma_chain 7826KB 7835KB [ 50.314275] anon_vma 120KB 327KB [ 50.319646] pid 221KB 248KB [ 50.325037] Acpi-Operand 106KB 166KB [ 50.330420] Acpi-Namespace 19KB 23KB [ 50.335822] numa_policy 0KB 3KB [ 50.341198] debug_objects_cache 543KB 547KB [ 50.346739] trace_event_file 144KB 147KB [ 50.352100] ftrace_event_field 254KB 255KB [ 50.357557] pool_workqueue 24KB 28KB [ 50.362935] page->ptl 3097KB 3103KB [ 50.368360] kmalloc-262144 1032KB 1032KB [ 50.373737] kmalloc-131072 650KB 650KB [ 50.379096] kmalloc-65536 264KB 264KB [ 50.384468] kmalloc-32768 825KB 825KB [ 50.389826] kmalloc-16384 181KB 181KB [ 50.395208] kmalloc-8192 470KB 470KB [ 50.400589] kmalloc-4096 6298KB 6328KB [ 50.405972] kmalloc-2048 3247KB 3251KB [ 50.411331] kmalloc-1024 3848KB 3850KB [ 50.416699] kmalloc-512 2760KB 2763KB [ 50.422061] kmalloc-256 1901KB 2415KB [ 50.427432] kmalloc-128 407KB 527KB [ 50.432838] kmalloc-96 2063KB 2064KB [ 50.438219] kmalloc-64 2467KB 2468KB [ 50.443582] kmalloc-32 2387KB 2405KB [ 50.448934] kmalloc-192 910KB 912KB [ 50.454281] kmem_cache 101KB 105KB [ 50.459629] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 50.468207] [ 1814] 0 1814 5366 168 86016 0 -1000 udevd [ 50.476343] [ 3502] 0 3502 14298 190 118784 0 0 rsyslogd [ 50.484742] [ 3554] 0 3554 4725 50 86016 0 0 cron [ 50.492784] [ 3575] 0 3575 3735 44 65536 0 0 mcstransd [ 50.501264] [ 3599] 0 3599 12490 152 131072 0 -1000 sshd [ 50.509312] [ 3627] 0 3627 3694 41 73728 0 0 getty [ 50.517442] [ 3628] 0 3628 3694 39 77824 0 0 getty [ 50.525574] [ 3629] 0 3629 3694 42 77824 0 0 getty [ 50.533705] [ 3630] 0 3630 3694 42 77824 0 0 getty [ 50.541837] [ 3631] 0 3631 3694 40 77824 0 0 getty [ 50.549972] [ 3632] 0 3632 3694 40 77824 0 0 getty [ 50.558103] [ 3633] 0 3633 3649 39 77824 0 0 getty [ 50.566244] [ 3635] 0 3635 5679 455 86016 0 -1000 udevd [ 50.574375] [ 3636] 0 3636 5679 455 86016 0 -1000 udevd [ 50.582503] [ 3652] 0 3652 17821 196 180224 0 0 sshd [ 50.590555] [ 3656] 0 3656 4332 0 24576 0 0 syzkaller224616 [ 50.599554] [ 3657] 0 3657 4332 0 24576 0 0 syzkaller224616 [ 50.608554] [ 3658] 0 3658 4332 0 24576 0 0 syzkaller224616 [ 50.617551] [ 3659] 0 3659 4332 0 24576 0 0 syzkaller224616 [ 50.626551] [ 3660] 0 3660 4332 0 24576 0 0 syzkaller224616 [ 50.635557] [ 3661] 0 3661 4332 0 24576 0 0 syzkaller224616 [ 50.644558] [ 3662] 0 3662 4332 0 24576 0 0 syzkaller224616 [ 50.653564] [ 3663] 0 3663 4332 0 24576 0 0 syzkaller224616 [ 50.662560] Out of memory: Kill process 3652 (sshd) score 0 or sacrifice child [ 50.669922] Killed process 3652 (sshd) total-vm:71284kB, anon-rss:780kB, file-rss:0kB, shmem-rss:4kB [ 50.682397] oom_reaper: reaped process 3652 (sshd), now anon-rss:0kB, file-rss:0kB, shmem-rss:4kB [ 50.752963] kworker/1:2 invoked oom-killer: gfp_mask=0x14000c2(GFP_KERNEL|__GFP_HIGHMEM), nodemask=(null), order=0, oom_score_adj=0 [ 50.765117] kworker/1:2 cpuset=/ mems_allowed=0 [ 50.769964] CPU: 1 PID: 1547 Comm: kworker/1:2 Not tainted 4.15.0-rc8+ #173 [ 50.777044] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.786385] Workqueue: events pcpu_balance_workfn [ 50.791202] Call Trace: [ 50.793772] dump_stack+0x194/0x257 [ 50.797373] ? arch_local_irq_restore+0x53/0x53 [ 50.802019] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 50.807191] dump_header+0x28c/0xe1e [ 50.810879] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 50.816042] ? pagefault_out_of_memory+0x152/0x152 [ 50.820951] ? __lock_acquire+0x664/0x3e00 [ 50.825160] ? check_noncircular+0x20/0x20 [ 50.829377] ? print_irqtrace_events+0x270/0x270 [ 50.834107] ? check_noncircular+0x20/0x20 [ 50.838320] ? task_will_free_mem+0x252/0xaa0 [ 50.842789] ? print_irqtrace_events+0x270/0x270 [ 50.847526] ? ___ratelimit+0x30d/0x630 [ 50.851477] ? lock_downgrade+0x980/0x980 [ 50.855598] ? lock_release+0xa40/0xa40 [ 50.859548] ? mark_held_locks+0xaf/0x100 [ 50.863667] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 50.868741] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 50.873726] ? trace_hardirqs_on+0xd/0x10 [ 50.877852] ? ___ratelimit+0x95/0x630 [ 50.881710] ? idr_get_free_cmn+0xfd0/0xfd0 [ 50.886005] ? find_held_lock+0x138/0x1d0 [ 50.890140] oom_kill_process+0x8b5/0x14a0 [ 50.894348] ? lock_downgrade+0x980/0x980 [ 50.898469] ? lock_release+0xa40/0xa40 [ 50.902424] ? check_noncircular+0x20/0x20 [ 50.906626] ? find_held_lock+0x35/0x1d0 [ 50.910665] ? oom_evaluate_task+0x480/0x480 [ 50.915047] ? oom_badness+0x21b/0x980 [ 50.918905] ? lock_downgrade+0x980/0x980 [ 50.923030] ? find_lock_task_mm+0x23b/0x460 [ 50.927420] ? find_held_lock+0x35/0x1d0 [ 50.931453] ? check_noncircular+0x20/0x20 [ 50.935660] ? oom_unkillable_task+0x394/0x4c0 [ 50.940213] ? lock_downgrade+0x980/0x980 [ 50.944333] ? lock_release+0xa40/0xa40 [ 50.948277] ? do_try_to_free_pages+0xc53/0x1020 [ 50.953014] ? find_lock_task_mm+0x460/0x460 [ 50.957410] ? find_held_lock+0x35/0x1d0 [ 50.961450] ? out_of_memory+0xb3a/0x1220 [ 50.965569] ? lock_downgrade+0x980/0x980 [ 50.969692] ? lock_release+0xa40/0xa40 [ 50.973637] ? lock_acquire+0x1d5/0x580 [ 50.977591] ? blocking_notifier_call_chain+0x112/0x190 [ 50.982923] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 50.987838] ? oom_evaluate_task+0x284/0x480 [ 50.992222] out_of_memory+0x86d/0x1220 [ 50.996181] ? oom_killer_disable+0x310/0x310 [ 51.000643] ? mutex_trylock+0x23a/0x2d0 [ 51.004676] ? __lock_is_held+0xb6/0x140 [ 51.008712] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 51.014141] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 51.018979] ? warn_alloc+0x2b0/0x2b0 [ 51.022748] ? check_noncircular+0x20/0x20 [ 51.026960] ? print_irqtrace_events+0x270/0x270 [ 51.031773] ? put_prev_task_fair+0x80/0x80 [ 51.036072] ? find_held_lock+0x35/0x1d0 [ 51.040112] ? __mutex_lock+0x5bd/0x1a80 [ 51.044151] ? __lock_acquire+0x664/0x3e00 [ 51.048356] ? lock_release+0xa40/0xa40 [ 51.052309] ? memset+0x31/0x40 [ 51.055563] ? do_raw_spin_trylock+0x190/0x190 [ 51.060134] ? __lock_is_held+0xb6/0x140 [ 51.064180] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 51.070047] ? __might_sleep+0x95/0x190 [ 51.073996] __alloc_pages_nodemask+0x9fb/0xd80 [ 51.078644] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 51.083632] ? __lock_acquire+0x664/0x3e00 [ 51.087847] ? print_irqtrace_events+0x270/0x270 [ 51.092579] ? __lock_is_held+0xb6/0x140 [ 51.096623] ? find_next_bit+0x27/0x30 [ 51.100486] pcpu_populate_chunk+0x1b3/0x880 [ 51.104875] pcpu_balance_workfn+0xf3e/0x1520 [ 51.109341] ? check_noncircular+0x20/0x20 [ 51.113545] ? find_held_lock+0x35/0x1d0 [ 51.117587] ? pcpu_create_chunk+0x900/0x900 [ 51.121969] ? lock_release+0xa40/0xa40 [ 51.125916] ? check_noncircular+0x20/0x20 [ 51.130128] ? lock_acquire+0x1d5/0x580 [ 51.134071] ? lock_acquire+0x1d5/0x580 [ 51.138020] ? process_one_work+0xb01/0x1b10 [ 51.142415] ? __lock_is_held+0xb6/0x140 [ 51.146460] process_one_work+0xbbf/0x1b10 [ 51.150666] ? trace_hardirqs_on+0xd/0x10 [ 51.154803] ? pwq_dec_nr_in_flight+0x450/0x450 [ 51.159451] ? __schedule+0x8f3/0x2060 [ 51.163305] ? update_curr+0x47b/0xa60 [ 51.167171] ? check_noncircular+0x20/0x20 [ 51.171376] ? __lock_is_held+0xb6/0x140 [ 51.175431] ? lock_acquire+0x1d5/0x580 [ 51.179382] ? lock_acquire+0x1d5/0x580 [ 51.183325] ? worker_thread+0x4a3/0x1990 [ 51.187531] ? lock_downgrade+0x980/0x980 [ 51.191652] ? lock_release+0xa40/0xa40 [ 51.195601] ? worker_pool_assign_id+0x1b0/0x1b0 [ 51.200330] ? do_raw_spin_trylock+0x190/0x190 [ 51.204883] ? __update_idle_core+0x305/0x600 [ 51.209361] worker_thread+0x223/0x1990 [ 51.213327] ? process_one_work+0x1b10/0x1b10 [ 51.217800] ? _raw_spin_unlock_irq+0x27/0x70 [ 51.222270] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 51.227256] ? trace_hardirqs_on+0xd/0x10 [ 51.231373] ? _raw_spin_unlock_irq+0x27/0x70 [ 51.235838] ? finish_task_switch+0x1d3/0x740 [ 51.240309] ? finish_task_switch+0x1aa/0x740 [ 51.244778] ? copy_overflow+0x20/0x20 [ 51.248648] ? __schedule+0x8f3/0x2060 [ 51.252606] ? lock_downgrade+0x980/0x980 [ 51.256734] ? find_held_lock+0x35/0x1d0 [ 51.260780] ? find_held_lock+0x35/0x1d0 [ 51.264826] ? complete+0x62/0x80 [ 51.268259] ? __schedule+0x2060/0x2060 [ 51.272201] ? do_wait_intr_irq+0x3e0/0x3e0 [ 51.276494] ? __lockdep_init_map+0xe4/0x650 [ 51.280873] ? do_raw_spin_trylock+0x190/0x190 [ 51.285428] ? lockdep_init_map+0x9/0x10 [ 51.289458] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 51.294534] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 51.299523] ? trace_hardirqs_on+0xd/0x10 [ 51.303670] ? __kthread_parkme+0x175/0x240 [ 51.307964] kthread+0x33c/0x400 [ 51.311301] ? process_one_work+0x1b10/0x1b10 [ 51.316030] ? kthread_stop+0x7a0/0x7a0 [ 51.319981] ret_from_fork+0x37/0x50 [ 51.323775] Mem-Info: [ 51.326212] active_anon:1764 inactive_anon:62 isolated_anon:0 [ 51.326212] active_file:7 inactive_file:19 isolated_file:1 [ 51.326212] unevictable:0 dirty:0 writeback:0 unstable:0 [ 51.326212] slab_reclaimable:7301 slab_unreclaimable:82566 [ 51.326212] mapped:2 shmem:70 pagetables:286 bounce:0 [ 51.326212] free:21303 free_pcp:164 free_cma:0 [ 51.358277] Node 0 active_anon:7056kB inactive_anon:248kB active_file:28kB inactive_file:76kB unevictable:0kB isolated(anon):0kB isolated(file):4kB 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 [ 51.384758] Node 0 DMA free:15908kB min:164kB low:204kB high:244kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 51.410910] lowmem_reserve[]: 0 2870 6381 6381 [ 51.415534] Node 0 DMA32 free:43964kB min:30332kB low:37912kB high:45492kB active_anon:24kB inactive_anon:0kB active_file:0kB inactive_file:32kB 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 [ 51.442914] lowmem_reserve[]: 0 0 3510 3510 [ 51.447978] Node 0 Normal free:25340kB min:37084kB low:46352kB high:55620kB active_anon:7032kB inactive_anon:248kB active_file:52kB inactive_file:44kB unevictable:0kB writepending:0kB present:4718592kB managed:3594628kB mlocked:0kB kernel_stack:3008kB pagetables:1144kB bounce:0kB free_pcp:656kB local_pcp:656kB free_cma:0kB [ 51.477553] lowmem_reserve[]: 0 0 0 0 [ 51.481398] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 51.495703] Node 0 DMA32: 7*4kB (UME) 4*8kB (UME) 6*16kB (UME) 3*32kB (ME) 5*64kB (UME) 5*128kB (ME) 5*256kB (ME) 5*512kB (UME) 4*1024kB (UME) 3*2048kB (ME) 7*4096kB (M) = 43964kB [ 51.511918] Node 0 Normal: 391*4kB (UMEH) 252*8kB (UMEH) 169*16kB (MH) 129*32kB (UMEH) 58*64kB (MEH) 32*128kB (UMH) 16*256kB (UMH) 0*512kB 1*1024kB (H) 1*2048kB (M) 0*4096kB = 25388kB [ 51.529939] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 51.538526] 97 total pagecache pages [ 51.542257] 0 pages in swap cache [ 51.545709] Swap cache stats: add 0, delete 0, find 0/0 [ 51.551075] Free swap = 0kB [ 51.554714] Total swap = 0kB [ 51.558253] 1965979 pages RAM [ 51.561359] 0 pages HighMem/MovableOnly [ 51.565346] 327760 pages reserved [ 51.568877] Unreclaimable slab info: [ 51.572702] Name Used Total [ 51.578278] hashtab_node 118KB 119KB [ 51.583671] ebitmap_node 382KB 385KB [ 51.589045] avtab_node 1012KB 1013KB [ 51.594770] TIPC 1KB 7KB [ 51.600848] SCTPv6 2KB 4KB [ 51.606248] DCCPv6 2KB 7KB [ 51.611635] DCCP 2KB 6KB [ 51.618339] fib6_nodes 0KB 4KB [ 51.623717] ip6_dst_cache 6KB 11KB [ 51.629083] RAWv6 9KB 19KB [ 51.634455] UDPv6 12KB 14KB [ 51.639818] TCPv6 2KB 5KB [ 51.645208] sd_ext_cdb 0KB 3KB [ 51.650586] scsi_sense_cache 103KB 136KB [ 51.655964] virtio_scsi_cmd 16KB 16KB [ 51.661348] sgpool-128 8KB 8KB [ 51.666725] sgpool-64 4KB 6KB [ 51.672132] sgpool-32 610KB 614KB [ 51.678172] sgpool-16 140KB 142KB [ 51.683560] sgpool-8 296KB 300KB [ 51.688943] cfq_io_cq 15KB 19KB [ 51.695088] cfq_queue 24KB 27KB [ 51.700818] mqueue_inode_cache 1KB 7KB [ 51.706269] nfs_commit_data 3KB 7KB [ 51.711736] nfs_write_data 34KB 37KB [ 51.717104] jbd2_inode 1KB 3KB [ 51.722476] ext4_system_zone 0KB 3KB [ 51.727844] bio-1 1KB 3KB [ 51.733224] rpc_buffers 17KB 19KB [ 51.738635] rpc_tasks 2KB 3KB [ 51.744043] UNIX 773KB 777KB [ 51.749424] tcp_bind_bucket 0KB 4KB [ 51.755241] ip_fib_trie 0KB 3KB [ 51.760626] ip_fib_alias 0KB 3KB [ 51.766033] ip_dst_cache 4KB 7KB [ 51.771416] RAW 5KB 7KB [ 51.776796] UDP 29KB 31KB [ 51.782181] TCP 7KB 7KB [ 51.787562] hugetlbfs_inode_cache 1KB 7KB [ 51.793289] eventpoll_pwq 10KB 15KB [ 51.798668] eventpoll_epi 19KB 27KB [ 51.804073] inotify_inode_mark 3KB 7KB [ 51.810150] request_queue 31KB 45KB [ 51.817536] blkdev_ioc 21KB 27KB [ 51.824144] bio-0 630KB 630KB [ 51.829524] biovec-(1<<(21-12)) 453KB 453KB [ 51.835080] biovec-64 252KB 259KB [ 51.840462] biovec-16 118KB 123KB [ 51.845847] bio_integrity_payload 0KB 4KB [ 51.851573] khugepaged_mm_slot 0KB 3KB [ 51.857393] uid_cache 0KB 3KB [ 51.862772] dmaengine-unmap-2 0KB 3KB [ 51.868179] audit_buffer 0KB 3KB [ 51.874276] skbuff_fclone_cache 134KB 135KB [ 51.880193] skbuff_head_cache 1720KB 1721KB [ 51.885580] configfs_dir_cache 0KB 4KB [ 51.891066] file_lock_cache 161KB 162KB [ 51.896799] file_lock_ctx 1KB 3KB [ 51.902167] fsnotify_mark_connector 2KB 3KB [ 51.908070] shmem_inode_cache 1045KB 1050KB [ 51.913452] task_delay_info 318KB 347KB [ 51.918834] sigqueue 366KB 370KB [ 51.924215] kernfs_node_cache 2285KB 2291KB [ 51.929597] mnt_cache 15KB 16KB [ 51.935041] filp 8233KB 8722KB [ 51.940759] names_cache 109743KB 109773KB [ 51.946798] avc_node 37KB 43KB [ 51.952817] selinux_file_security 413KB 492KB [ 51.959174] selinux_inode_security 1951KB 1952KB [ 51.964992] key_jar 3KB 7KB [ 51.970357] nsproxy 0KB 3KB [ 51.976412] vm_area_struct 18651KB 18663KB [ 51.981769] mm_struct 4515KB 4523KB [ 51.988255] fs_cache 424KB 432KB [ 51.993610] files_cache 1592KB 1597KB [ 51.999231] signal_cache 2538KB 2551KB [ 52.004580] sighand_cache 212KB 326KB [ 52.009934] task_struct 10835KB 10835KB [ 52.015297] cred_jar 2351KB 2360KB [ 52.020659] anon_vma_chain 7826KB 7835KB [ 52.026022] anon_vma 120KB 327KB [ 52.031374] pid 221KB 248KB [ 52.036726] Acpi-Operand 106KB 166KB [ 52.042435] Acpi-Namespace 19KB 23KB [ 52.047789] numa_policy 0KB 3KB [ 52.053141] debug_objects_cache 543KB 547KB [ 52.058673] trace_event_file 144KB 147KB [ 52.064033] ftrace_event_field 254KB 255KB [ 52.069839] pool_workqueue 24KB 28KB [ 52.075196] page->ptl 3097KB 3103KB [ 52.080560] kmalloc-262144 1032KB 1032KB [ 52.085909] kmalloc-131072 650KB 650KB [ 52.091263] kmalloc-65536 264KB 264KB [ 52.096622] kmalloc-32768 825KB 825KB [ 52.101978] kmalloc-16384 181KB 181KB [ 52.107329] kmalloc-8192 470KB 470KB [ 52.112697] kmalloc-4096 6298KB 6328KB [ 52.118580] kmalloc-2048 3247KB 3251KB [ 52.124459] kmalloc-1024 3850KB 3850KB [ 52.129826] kmalloc-512 2760KB 2763KB [ 52.135179] kmalloc-256 1901KB 2415KB [ 52.140791] kmalloc-128 407KB 527KB [ 52.146402] kmalloc-96 2063KB 2064KB [ 52.151751] kmalloc-64 2467KB 2468KB [ 52.157100] kmalloc-32 2387KB 2405KB [ 52.162493] kmalloc-192 910KB 912KB [ 52.167845] kmem_cache 101KB 105KB [ 52.173201] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 52.181830] [ 1814] 0 1814 5366 168 86016 0 -1000 udevd [ 52.190028] [ 3502] 0 3502 14298 190 118784 0 0 rsyslogd [ 52.198423] [ 3554] 0 3554 4725 50 86016 0 0 cron [ 52.206474] [ 3575] 0 3575 3735 44 65536 0 0 mcstransd [ 52.214954] [ 3599] 0 3599 12490 152 131072 0 -1000 sshd [ 52.223023] [ 3627] 0 3627 3694 41 73728 0 0 getty [ 52.231166] [ 3628] 0 3628 3694 39 77824 0 0 getty [ 52.239304] [ 3629] 0 3629 3694 42 77824 0 0 getty [ 52.247435] [ 3630] 0 3630 3694 42 77824 0 0 getty [ 52.255568] [ 3631] 0 3631 3694 40 77824 0 0 getty [ 52.263708] [ 3632] 0 3632 3694 40 77824 0 0 getty [ 52.271842] [ 3633] 0 3633 3649 39 77824 0 0 getty [ 52.279986] [ 3635] 0 3635 5679 455 86016 0 -1000 udevd [ 52.288140] [ 3636] 0 3636 5679 455 86016 0 -1000 udevd [ 52.296543] [ 3652] 0 3652 17821 1 180224 0 0 sshd [ 52.307727] [ 3656] 0 3656 4332 0 24576 0 0 syzkaller224616 [ 52.316732] [ 3657] 0 3657 4332 0 24576 0 0 syzkaller224616 [ 52.325735] [ 3658] 0 3658 4332 0 24576 0 0 syzkaller224616 [ 52.334739] [ 3659] 0 3659 4332 0 24576 0 0 syzkaller224616 [ 52.343742] [ 3660] 0 3660 4332 0 24576 0 0 syzkaller224616 Connection to 10.128.15.234 closed by remote host. [ 52.352745] [ 3661] 0 3661 4332 0 24576 0 0 syzkaller2