[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 28.162516] kauditd_printk_skb: 8 callbacks suppressed [ 28.162529] audit: type=1800 audit(1542652080.119:29): pid=5835 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 28.188952] audit: type=1800 audit(1542652080.119:30): pid=5835 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.42' (ECDSA) to the list of known hosts. 2018/11/19 18:41:16 parsed 1 programs 2018/11/19 18:41:18 executed programs: 0 syzkaller login: [ 826.802498] IPVS: ftp: loaded support on port[0] = 21 [ 827.060748] bridge0: port 1(bridge_slave_0) entered blocking state [ 827.067674] bridge0: port 1(bridge_slave_0) entered disabled state [ 827.074733] device bridge_slave_0 entered promiscuous mode [ 827.093379] bridge0: port 2(bridge_slave_1) entered blocking state [ 827.099899] bridge0: port 2(bridge_slave_1) entered disabled state [ 827.107379] device bridge_slave_1 entered promiscuous mode [ 827.125275] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 827.144077] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 827.191981] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 827.212562] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 827.288492] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 827.296513] team0: Port device team_slave_0 added [ 827.314035] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 827.321358] team0: Port device team_slave_1 added [ 827.340452] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 827.362235] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 827.380369] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 827.400415] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 827.548639] bridge0: port 2(bridge_slave_1) entered blocking state [ 827.555088] bridge0: port 2(bridge_slave_1) entered forwarding state [ 827.562050] bridge0: port 1(bridge_slave_0) entered blocking state [ 827.568626] bridge0: port 1(bridge_slave_0) entered forwarding state [ 828.102488] 8021q: adding VLAN 0 to HW filter on device bond0 [ 828.154872] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 828.208434] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 828.214535] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 828.223008] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 828.273165] 8021q: adding VLAN 0 to HW filter on device team0 [ 908.493115] syz-execprog invoked oom-killer: gfp_mask=0x6200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=0 [ 908.505107] syz-execprog cpuset=/ mems_allowed=0 [ 908.510654] CPU: 0 PID: 5993 Comm: syz-execprog Not tainted 4.20.0-rc1-next-20181109+ #110 [ 908.519045] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 908.528432] Call Trace: [ 908.531046] dump_stack+0x244/0x39d [ 908.534676] ? dump_stack_print_info.cold.1+0x20/0x20 [ 908.539935] ? mark_held_locks+0x130/0x130 [ 908.544154] ? mark_held_locks+0x130/0x130 [ 908.548395] dump_header+0x27b/0xf72 [ 908.552100] ? pagefault_out_of_memory+0x197/0x197 [ 908.557030] ? __lock_acquire+0x62f/0x4c20 [ 908.561245] ? print_usage_bug+0xc0/0xc0 [ 908.565288] ? graph_lock+0x270/0x270 [ 908.569068] ? graph_lock+0x270/0x270 [ 908.572847] ? print_usage_bug+0xc0/0xc0 [ 908.576889] ? print_usage_bug+0xc0/0xc0 [ 908.581009] ? graph_lock+0x270/0x270 [ 908.584807] ? find_held_lock+0x36/0x1c0 [ 908.588875] ? mark_held_locks+0xc7/0x130 [ 908.593064] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 908.598162] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 908.603273] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 908.607886] ? trace_hardirqs_on+0xbd/0x310 [ 908.612249] ? kasan_check_read+0x11/0x20 [ 908.616407] ? ___ratelimit+0x3b4/0x672 [ 908.620373] ? trace_hardirqs_off_caller+0x300/0x300 [ 908.625460] ? trace_hardirqs_on+0x310/0x310 [ 908.629859] ? lock_downgrade+0x900/0x900 [ 908.634038] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 908.639131] ? ___ratelimit+0x3b9/0x672 [ 908.643085] ? idr_get_free+0xf70/0xf70 [ 908.647039] ? kasan_check_read+0x11/0x20 [ 908.651164] ? do_raw_spin_unlock+0xa7/0x330 [ 908.655556] oom_kill_process.cold.27+0x10/0x903 [ 908.660291] ? graph_lock+0x270/0x270 [ 908.664076] ? _raw_spin_unlock+0x2c/0x50 [ 908.668209] ? oom_badness+0xe6/0xaa0 [ 908.671993] ? oom_evaluate_task+0x540/0x540 [ 908.676393] ? find_held_lock+0x36/0x1c0 [ 908.680446] ? out_of_memory+0x96f/0x1430 [ 908.684577] ? lock_downgrade+0x900/0x900 [ 908.688753] ? check_preemption_disabled+0x48/0x280 [ 908.693874] ? kasan_check_read+0x11/0x20 [ 908.698054] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 908.703317] ? rcu_read_unlock_special+0x370/0x370 [ 908.708229] ? kasan_check_write+0x14/0x20 [ 908.712444] ? oom_evaluate_task+0x302/0x540 [ 908.716850] out_of_memory+0xa7f/0x1430 [ 908.720842] ? unreserve_highatomic_pageblock+0x3e0/0x5d0 [ 908.726409] ? oom_killer_disable+0x3a0/0x3a0 [ 908.730916] ? __alloc_pages_slowpath+0xf27/0x2e30 [ 908.735856] ? __ww_mutex_check_waiters+0x160/0x160 [ 908.740917] ? find_next_bit+0x104/0x130 [ 908.745011] __alloc_pages_slowpath+0x236a/0x2e30 [ 908.749890] ? warn_alloc+0x120/0x120 [ 908.753715] ? mark_held_locks+0x130/0x130 [ 908.758004] ? find_get_entry+0xaae/0x1120 [ 908.762272] ? filemap_map_pages+0x1a20/0x1a20 [ 908.766871] ? graph_lock+0x270/0x270 [ 908.770709] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 908.776256] ? check_preemption_disabled+0x48/0x280 [ 908.781280] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 908.787291] ? should_fail+0x22d/0xd01 [ 908.791242] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 908.796358] ? graph_lock+0x270/0x270 [ 908.800200] ? __lock_is_held+0xb5/0x140 [ 908.804284] ? mark_held_locks+0x130/0x130 [ 908.808562] ? lock_release+0xa10/0xa10 [ 908.812617] ? perf_trace_sched_process_exec+0x860/0x860 [ 908.818077] ? xa_load+0x2ba/0x460 [ 908.821627] ? lock_downgrade+0x900/0x900 [ 908.825817] ? __might_sleep+0x95/0x190 [ 908.829818] __alloc_pages_nodemask+0xa7b/0xdd0 [ 908.834518] ? __alloc_pages_slowpath+0x2e30/0x2e30 [ 908.839540] ? __page_cache_alloc+0x177/0x570 [ 908.844046] ? xa_load+0x2e1/0x460 [ 908.847598] ? xa_clear_mark+0x40/0x40 [ 908.851495] ? graph_lock+0x270/0x270 [ 908.855315] ? graph_lock+0x270/0x270 [ 908.859119] ? graph_lock+0x270/0x270 [ 908.862957] ? __do_page_cache_readahead+0x663/0x810 [ 908.868089] ? find_held_lock+0x36/0x1c0 [ 908.872160] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 908.877749] alloc_pages_current+0x173/0x350 [ 908.882171] __page_cache_alloc+0x3ce/0x570 [ 908.886518] ? kasan_check_read+0x11/0x20 [ 908.890671] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 908.895971] ? generic_perform_write+0x6a0/0x6a0 [ 908.900751] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 908.906298] ? check_preemption_disabled+0x48/0x280 [ 908.911334] filemap_fault+0x1595/0x25f0 [ 908.915419] ? __lock_page_or_retry+0xa00/0xa00 [ 908.920100] ? mark_held_locks+0x130/0x130 [ 908.924351] ? filemap_map_pages+0xd6b/0x1a20 [ 908.928858] ? lock_downgrade+0x900/0x900 [ 908.933009] ? check_preemption_disabled+0x48/0x280 [ 908.938068] ? kasan_check_read+0x11/0x20 [ 908.942237] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 908.947525] ? rcu_read_unlock_special+0x370/0x370 [ 908.952470] ? filemap_map_pages+0xd92/0x1a20 [ 908.956980] ? __lock_acquire+0x62f/0x4c20 [ 908.961262] ? find_get_entries_tag+0x1400/0x1400 [ 908.966129] ? lock_acquire+0x1ed/0x520 [ 908.970139] ? ext4_filemap_fault+0x7a/0xad [ 908.974478] ? lock_release+0xa10/0xa10 [ 908.978459] ? perf_trace_sched_process_exec+0x860/0x860 [ 908.983920] ? print_usage_bug+0xc0/0xc0 [ 908.987989] ? print_usage_bug+0xc0/0xc0 [ 908.992072] ? down_read+0x8d/0x120 [ 908.995705] ? ext4_filemap_fault+0x7a/0xad [ 909.000038] ? __down_interruptible+0x700/0x700 [ 909.004752] ext4_filemap_fault+0x82/0xad [ 909.008997] __do_fault+0x100/0x6b0 [ 909.012645] ? pmd_devmap_trans_unstable+0x220/0x220 [ 909.017761] ? mark_held_locks+0x130/0x130 [ 909.022007] ? mark_held_locks+0x130/0x130 [ 909.026247] ? __might_fault+0x12b/0x1e0 [ 909.030315] ? lock_downgrade+0x900/0x900 [ 909.034477] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 909.040027] __handle_mm_fault+0x3ea0/0x5be0 [ 909.044456] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 909.049329] ? kasan_check_read+0x11/0x20 [ 909.053481] ? _copy_to_user+0xc8/0x110 [ 909.057468] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 909.063025] ? graph_lock+0x270/0x270 [ 909.066843] ? graph_lock+0x270/0x270 [ 909.070687] ? find_held_lock+0x36/0x1c0 [ 909.074762] ? handle_mm_fault+0x42a/0xc70 [ 909.079050] ? lock_downgrade+0x900/0x900 [ 909.083220] ? check_preemption_disabled+0x48/0x280 [ 909.088255] ? kasan_check_read+0x11/0x20 [ 909.092413] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 909.097699] ? rcu_read_unlock_special+0x370/0x370 [ 909.102636] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 909.108184] ? check_preemption_disabled+0x48/0x280 [ 909.113249] handle_mm_fault+0x54f/0xc70 [ 909.117324] ? __handle_mm_fault+0x5be0/0x5be0 [ 909.121917] ? find_vma+0x34/0x190 [ 909.125522] __do_page_fault+0x5d6/0xe40 [ 909.129596] ? trace_hardirqs_off+0xb8/0x310 [ 909.134019] do_page_fault+0xed/0x7d1 [ 909.137829] ? vmalloc_sync_all+0x30/0x30 [ 909.141984] ? error_entry+0x70/0xd0 [ 909.145704] ? trace_hardirqs_off_caller+0xbb/0x300 [ 909.150727] ? trace_hardirqs_on_caller+0xc0/0x310 [ 909.155701] ? syscall_return_slowpath+0x5e0/0x5e0 [ 909.160638] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 909.165489] ? trace_hardirqs_on_caller+0x310/0x310 [ 909.170517] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 909.175977] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 909.181020] ? prepare_exit_to_usermode+0x291/0x3b0 [ 909.186045] ? page_fault+0x8/0x30 [ 909.189598] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 909.194454] ? page_fault+0x8/0x30 [ 909.198003] page_fault+0x1e/0x30 [ 909.201459] RIP: 0033:0x4577a1 [ 909.204692] Code: Bad RIP value. [ 909.208063] RSP: 002b:000000c420037f18 EFLAGS: 00010246 [ 909.213428] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00000000004577a1 [ 909.220698] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 909.227969] RBP: 000000c420037f28 R08: 000000c420037f18 R09: 0000000000000000 [ 909.235261] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000042d030 [ 909.242533] R13: 00000000000000f1 R14: 0000000000000011 R15: 0000000000000000 [ 909.257505] Mem-Info: [ 909.259994] active_anon:4716 inactive_anon:191 isolated_anon:0 [ 909.259994] active_file:15 inactive_file:16 isolated_file:0 [ 909.259994] unevictable:0 dirty:0 writeback:0 unstable:0 [ 909.259994] slab_reclaimable:10066 slab_unreclaimable:1543038 [ 909.259994] mapped:2 shmem:243 pagetables:285 bounce:0 [ 909.259994] free:24609 free_pcp:0 free_cma:0 [ 909.292593] Node 0 active_anon:18864kB inactive_anon:764kB active_file:60kB inactive_file:64kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:972kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 8192kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 909.319683] 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 [ 909.345880] lowmem_reserve[]: 0 2818 6321 6321 [ 909.350484] Node 0 DMA32 free:44048kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:248kB local_pcp:0kB free_cma:0kB [ 909.377885] lowmem_reserve[]: 0 0 3503 3503 [ 909.382232] Node 0 Normal free:37316kB min:37364kB low:46704kB high:56044kB active_anon:18864kB inactive_anon:764kB active_file:40kB inactive_file:240kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6016kB pagetables:1140kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 909.410864] lowmem_reserve[]: 0 0 0 0 [ 909.414682] 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 [ 909.428386] Node 0 DMA32: 4*4kB (UM) 1*8kB (M) 3*16kB (M) 2*32kB (M) 4*64kB (UM) 5*128kB (UM) 3*256kB (M) 3*512kB (M) 2*1024kB (M) 3*2048kB (UM) 8*4096kB (M) = 44296kB [ 909.443583] Node 0 Normal: 1344*4kB (UME) 723*8kB (ME) 337*16kB (ME) 171*32kB (ME) 83*64kB (UME) 29*128kB (UME) 8*256kB (ME) 3*512kB (UM) 3*1024kB (UM) 0*2048kB 0*4096kB = 37704kB [ 909.459866] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 909.468752] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 909.477370] 286 total pagecache pages [ 909.481184] 0 pages in swap cache [ 909.484656] Swap cache stats: add 0, delete 0, find 0/0 [ 909.490089] Free swap = 0kB [ 909.493114] Total swap = 0kB [ 909.496167] 1965979 pages RAM [ 909.499304] 0 pages HighMem/MovableOnly [ 909.503276] 342854 pages reserved [ 909.507240] 0 pages cma reserved [ 909.510669] Unreclaimable slab info: [ 909.514718] Name Used Total [ 909.520370] pid_2 37KB 44KB [ 909.525849] TIPC 2KB 7KB [ 909.531239] SCTPv6 6KB 6KB [ 909.536654] sctp_chunk 1359686KB 1359686KB [ 909.542025] sctp_bind_bucket 3KB 7KB [ 909.547440] DCCPv6 4KB 7KB [ 909.552813] DCCP 4KB 6KB [ 909.558257] bridge_fdb_cache 2KB 7KB [ 909.563628] fib6_nodes 13KB 20KB [ 909.569070] ip6_dst_cache 109KB 112KB [ 909.574437] RAWv6 19KB 19KB [ 909.579848] UDPv6 14KB 14KB [ 909.585235] TCPv6 8KB 11KB [ 909.590705] nf_conntrack 0KB 3KB [ 909.602024] sd_ext_cdb 0KB 3KB [ 909.607441] scsi_sense_cache 1056KB 1060KB [ 909.612809] virtio_scsi_cmd 16KB 16KB [ 909.636583] sgpool-128 8KB 8KB [ 909.641952] sgpool-64 4KB 6KB [ 909.655649] sgpool-32 2KB 7KB [ 909.676572] sgpool-16 1KB 3KB [ 909.681973] sgpool-8 0KB 3KB [ 909.705797] mqueue_inode_cache 2KB 7KB [ 909.711288] bio_post_read_ctx 14KB 15KB [ 909.731261] bio-2 14KB 15KB [ 909.736700] jfs_mp 7KB 7KB [ 909.742092] nfs_commit_data 3KB 7KB [ 909.763858] nfs_write_data 32KB 32KB [ 909.769295] ext4_system_zone 0KB 3KB [ 909.774681] bio-1 1KB 3KB [ 909.797263] pid_namespace 0KB 3KB [ 909.802644] rpc_buffers 17KB 19KB [ 909.820829] rpc_tasks 2KB 3KB [ 909.826256] UNIX 433KB 438KB [ 909.831633] tcp_bind_bucket 0KB 4KB [ 909.838024] ip_fib_trie 2KB 3KB [ 909.843401] ip_fib_alias 9KB 11KB [ 909.848818] ip_dst_cache 694KB 700KB [ 909.854186] RAW 11KB 14KB [ 909.865819] UDP 34KB 39KB [ 909.871207] TCP 5KB 5KB [ 909.887769] hugetlbfs_inode_cache 2KB 7KB [ 909.893505] fscache_cookie_jar 1KB 3KB [ 909.910910] eventpoll_pwq 12KB 19KB [ 909.916324] eventpoll_epi 22KB 31KB [ 909.922167] inotify_inode_mark 8KB 11KB [ 909.947965] request_queue 142KB 151KB [ 909.953338] blkdev_ioc 29KB 30KB [ 909.965319] bio-0 326KB 326KB [ 909.970739] biovec-max 1377KB 1377KB [ 909.985842] biovec-64 283KB 283KB [ 909.991229] biovec-16 30KB 30KB [ 910.005271] bio_integrity_payload 1KB 3KB [ 910.011095] khugepaged_mm_slot 0KB 3KB [ 910.037831] uid_cache 1KB 8KB [ 910.043213] dmaengine-unmap-256 2KB 6KB [ 910.073047] dmaengine-unmap-128 1KB 3KB [ 910.089562] dmaengine-unmap-16 0KB 4KB [ 910.095056] dmaengine-unmap-2 0KB 3KB [ 910.123600] audit_buffer 0KB 3KB [ 910.129032] skbuff_fclone_cache 108KB 112KB [ 910.134589] skbuff_head_cache 1361692KB 1361692KB [ 910.146709] configfs_dir_cache 0KB 4KB [ 910.152178] file_lock_cache 174KB 176KB [ 910.169398] file_lock_ctx 1KB 3KB [ 910.174775] fsnotify_mark_connector 5KB 11KB [ 910.193059] net_namespace 8KB 8KB [ 910.205566] shmem_inode_cache 4602KB 4604KB [ 910.210980] task_delay_info 330KB 460KB [ 910.229345] taskstats 7KB 11KB [ 910.234721] proc_dir_entry 320KB 322KB [ 910.246771] pde_opener 14KB 27KB [ 910.252146] seq_file 141KB 633KB [ 910.269567] sigqueue 161KB 208KB [ 910.274943] kernfs_node_cache 8043KB 8048KB [ 910.295762] mnt_cache 30KB 32KB [ 910.301142] filp 6653KB 7586KB [ 910.314054] names_cache 93211KB 93249KB [ 910.319475] iint_cache 73KB 79KB [ 910.324857] key_jar 3KB 7KB [ 910.355817] uts_namespace 0KB 3KB [ 910.361199] nsproxy 0KB 3KB [ 910.374976] vm_area_struct 16946KB 17700KB [ 910.380409] mm_struct 4304KB 4920KB [ 910.410108] fs_cache 377KB 480KB [ 910.415516] files_cache 1414KB 1706KB [ 910.444446] signal_cache 2416KB 2918KB [ 910.449923] sighand_cache 413KB 464KB [ 910.455291] task_struct 10450KB 10463KB [ 910.466125] cred_jar 2169KB 2552KB [ 910.471495] anon_vma_chain 7867KB 9040KB [ 910.477324] anon_vma 111KB 362KB [ 910.482671] pid 179KB 332KB [ 910.488083] Acpi-Operand 106KB 162KB [ 910.493451] Acpi-Namespace 19KB 23KB [ 910.498831] numa_policy 0KB 3KB [ 910.504176] debug_objects_cache 960KB 1040KB [ 910.509728] trace_event_file 260KB 262KB [ 910.515074] ftrace_event_field 376KB 381KB [ 910.520526] pool_workqueue 71KB 76KB [ 910.525958] task_group 0KB 3KB [ 910.531315] page->ptl 2828KB 3360KB [ 910.536701] kmalloc-2M 2050KB 2050KB [ 910.542052] kmalloc-512k 2056KB 2056KB [ 910.547417] kmalloc-256k 1290KB 1290KB [ 910.552760] kmalloc-128k 650KB 650KB [ 910.558220] kmalloc-64k 330KB 330KB [ 910.563566] kmalloc-32k 16599KB 16599KB [ 910.568964] kmalloc-16k 1485KB 1485KB [ 910.574307] kmalloc-8k 1179KB 1179KB [ 910.579688] kmalloc-4k 9362KB 9362KB [ 910.585064] kmalloc-2k 8098KB 8102KB [ 910.591725] kmalloc-1k 8866KB 8867KB [ 910.597146] kmalloc-512 2723103KB 2723103KB [ 910.602489] kmalloc-256 2121KB 2171KB [ 910.607862] kmalloc-128 698KB 704KB [ 910.613210] kmalloc-96 1969KB 2528KB [ 910.618583] kmalloc-64 1717KB 1720KB [ 910.623925] kmalloc-32 1097KB 1708KB [ 910.629407] kmalloc-192 462KB 976KB [ 910.634801] kmem_cache 170KB 176KB [ 910.640199] Out of memory: Kill process 6329 (syz-executor0) score 1000 or sacrifice child [ 910.649285] Killed process 6332 (syz-executor0) total-vm:37836kB, anon-rss:4216kB, file-rss:0kB, shmem-rss:0kB [ 910.662113] oom_reaper: reaped process 6332 (syz-executor0), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 910.968356] syz-executor0 invoked oom-killer: gfp_mask=0x6142c0(GFP_KERNEL|__GFP_NOWARN|__GFP_COMP|__GFP_NOMEMALLOC), nodemask=(null), order=0, oom_score_adj=1000 [ 910.983321] syz-executor0 cpuset=syz0 mems_allowed=0 [ 910.988772] CPU: 0 PID: 6332 Comm: syz-executor0 Not tainted 4.20.0-rc1-next-20181109+ #110 [ 910.997267] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 911.006632] Call Trace: [ 911.009279] dump_stack+0x244/0x39d [ 911.012918] ? dump_stack_print_info.cold.1+0x20/0x20 [ 911.018163] dump_header+0x27b/0xf72 [ 911.021936] ? mark_held_locks+0x130/0x130 [ 911.026183] ? pagefault_out_of_memory+0x197/0x197 [ 911.031148] ? __lock_acquire+0x62f/0x4c20 [ 911.035454] ? mem_cgroup_css_online+0x3d0/0x3d0 [ 911.040285] ? print_usage_bug+0xc0/0xc0 [ 911.044357] ? graph_lock+0x270/0x270 [ 911.048183] ? print_usage_bug+0xc0/0xc0 [ 911.052299] ? print_usage_bug+0xc0/0xc0 [ 911.056387] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 911.061937] ? find_held_lock+0x36/0x1c0 [ 911.066011] ? mark_held_locks+0xc7/0x130 [ 911.070183] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 911.075315] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 911.080427] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 911.085018] ? trace_hardirqs_on+0xbd/0x310 [ 911.089351] ? kasan_check_read+0x11/0x20 [ 911.093501] ? ___ratelimit+0x3b4/0x672 [ 911.097504] ? trace_hardirqs_off_caller+0x300/0x300 [ 911.102660] ? trace_hardirqs_on+0x310/0x310 [ 911.107095] ? lock_downgrade+0x900/0x900 [ 911.111264] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 911.116388] ? ___ratelimit+0x3b9/0x672 [ 911.120371] ? idr_get_free+0xf70/0xf70 [ 911.124366] ? find_held_lock+0x36/0x1c0 [ 911.128441] oom_kill_process.cold.27+0x10/0x903 [ 911.133233] ? graph_lock+0x270/0x270 [ 911.137043] ? check_preemption_disabled+0x48/0x280 [ 911.142072] ? kasan_check_read+0x11/0x20 [ 911.146253] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 911.151556] ? oom_evaluate_task+0x540/0x540 [ 911.155971] ? find_held_lock+0x36/0x1c0 [ 911.160046] ? out_of_memory+0x96f/0x1430 [ 911.164234] ? lock_downgrade+0x900/0x900 [ 911.168390] ? check_preemption_disabled+0x48/0x280 [ 911.173420] ? kasan_check_read+0x11/0x20 [ 911.177576] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 911.182858] ? rcu_read_unlock_special+0x370/0x370 [ 911.187797] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 911.193338] ? oom_evaluate_task+0x302/0x540 [ 911.197766] out_of_memory+0xa7f/0x1430 [ 911.201753] ? unreserve_highatomic_pageblock+0x3e0/0x5d0 [ 911.207302] ? oom_killer_disable+0x3a0/0x3a0 [ 911.211809] ? __alloc_pages_slowpath+0xf27/0x2e30 [ 911.216744] ? __ww_mutex_check_waiters+0x160/0x160 [ 911.221769] ? find_next_bit+0x104/0x130 [ 911.225847] __alloc_pages_slowpath+0x236a/0x2e30 [ 911.230722] ? warn_alloc+0x120/0x120 [ 911.234550] ? warn_alloc+0x120/0x120 [ 911.238366] ? warn_alloc+0x120/0x120 [ 911.242170] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 911.246954] ? print_usage_bug+0xc0/0xc0 [ 911.251026] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 911.255619] ? print_usage_bug+0xc0/0xc0 [ 911.259704] ? warn_alloc+0x120/0x120 [ 911.263515] ? print_usage_bug+0xc0/0xc0 [ 911.267638] ? graph_lock+0x270/0x270 [ 911.271448] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 911.276992] ? should_fail+0x22d/0xd01 [ 911.280884] ? print_usage_bug+0xc0/0xc0 [ 911.284955] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 911.290090] ? graph_lock+0x270/0x270 [ 911.293920] ? __lock_is_held+0xb5/0x140 [ 911.297995] ? graph_lock+0x270/0x270 [ 911.301806] ? lock_release+0xa10/0xa10 [ 911.305784] ? perf_trace_sched_process_exec+0x860/0x860 [ 911.311242] ? check_preemption_disabled+0x48/0x280 [ 911.316272] ? __might_sleep+0x95/0x190 [ 911.320291] __alloc_pages_nodemask+0xa7b/0xdd0 [ 911.324968] ? graph_lock+0x270/0x270 [ 911.328778] ? __alloc_pages_slowpath+0x2e30/0x2e30 [ 911.333855] ? mark_held_locks+0xc7/0x130 [ 911.338011] ? cache_grow_begin+0x65/0x8c0 [ 911.342272] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 911.346864] ? trace_hardirqs_on+0xbd/0x310 [ 911.351207] ? fallback_alloc+0x204/0x2e0 [ 911.355421] ? trace_hardirqs_off_caller+0x300/0x300 [ 911.360537] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 911.366086] cache_grow_begin+0xa5/0x8c0 [ 911.370150] ? do_raw_spin_unlock+0xa7/0x330 [ 911.374576] fallback_alloc+0x204/0x2e0 [ 911.378566] ____cache_alloc_node+0x1c7/0x1e0 [ 911.383072] kmem_cache_alloc_node_trace+0xe7/0x740 [ 911.388102] __kmalloc_node_track_caller+0x3c/0x70 [ 911.393057] __kmalloc_reserve.isra.38+0x41/0xe0 [ 911.397841] __alloc_skb+0x150/0x770 [ 911.401565] ? __might_fault+0x12b/0x1e0 [ 911.405636] ? netdev_alloc_frag+0x1f0/0x1f0 [ 911.410049] ? lock_release+0xa10/0xa10 [ 911.414031] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 911.418801] ? _copy_to_iter_mcsafe+0x1680/0x1680 [ 911.423722] _sctp_make_chunk+0x58/0x280 [ 911.427796] sctp_make_datafrag_empty+0x1d2/0x2e0 [ 911.432647] ? sctp_make_ecne+0x150/0x150 [ 911.436820] sctp_datamsg_from_user+0x7ca/0x1310 [ 911.441602] ? sctp_datamsg_free+0x90/0x90 [ 911.445858] ? lockdep_hardirqs_on+0x296/0x5b0 [ 911.450452] ? trace_hardirqs_on+0xbd/0x310 [ 911.454784] ? kasan_check_read+0x11/0x20 [ 911.458941] ? prepare_to_wait_exclusive+0x1a6/0x480 [ 911.464050] ? trace_hardirqs_off_caller+0x300/0x300 [ 911.469168] ? find_held_lock+0x36/0x1c0 [ 911.473250] ? graph_lock+0x270/0x270 [ 911.477064] ? graph_lock+0x270/0x270 [ 911.480905] ? __lock_sock+0x203/0x350 [ 911.484837] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 911.490398] ? flex_array_get+0x1da/0x260 [ 911.494557] sctp_sendmsg_to_asoc+0x5ca/0x1a20 [ 911.499157] ? trace_hardirqs_on+0xbd/0x310 [ 911.503494] ? lock_sock_nested+0xd8/0x120 [ 911.507736] ? sctp_init_sock+0x1460/0x1460 [ 911.512119] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 911.517668] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 911.523234] ? sctp_id2assoc+0x231/0x3f0 [ 911.527301] ? lock_sock_nested+0x9a/0x120 [ 911.531555] ? sctp_wfree+0xb40/0xb40 [ 911.535361] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 911.540902] ? sctp_sendmsg_check_sflags+0x1bd/0x270 [ 911.546013] sctp_sendmsg+0x13c2/0x1da0 [ 911.550003] ? sctp_id2assoc+0x3f0/0x3f0 [ 911.554072] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 911.559645] ? aa_label_sk_perm+0x91/0x100 [ 911.563914] ? rcu_read_unlock_special+0x370/0x370 [ 911.568918] inet_sendmsg+0x19c/0x690 [ 911.572727] ? ipip_gro_receive+0x100/0x100 [ 911.577103] ? apparmor_socket_sendmsg+0x29/0x30 [ 911.581896] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 911.587469] ? security_socket_sendmsg+0x94/0xc0 [ 911.592242] ? ipip_gro_receive+0x100/0x100 [ 911.596570] sock_sendmsg+0xd5/0x120 [ 911.600290] sock_write_iter+0x35e/0x5c0 [ 911.604364] ? sock_sendmsg+0x120/0x120 [ 911.608373] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 911.613914] ? iov_iter_init+0xe5/0x210 [ 911.617924] __vfs_write+0x6b8/0x9f0 [ 911.621658] ? kernel_read+0x120/0x120 [ 911.625568] ? apparmor_path_rmdir+0x30/0x30 [ 911.629995] ? trace_hardirqs_off_caller+0x300/0x300 [ 911.635116] ? apparmor_file_permission+0x24/0x30 [ 911.639970] ? rw_verify_area+0x118/0x360 [ 911.644130] vfs_write+0x1fc/0x560 [ 911.647684] ksys_write+0x101/0x260 [ 911.651339] ? __ia32_sys_read+0xb0/0xb0 [ 911.655409] ? trace_hardirqs_off_caller+0x300/0x300 [ 911.660518] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 911.666066] __x64_sys_write+0x73/0xb0 [ 911.669965] do_syscall_64+0x1b9/0x820 [ 911.673863] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 911.679243] ? syscall_return_slowpath+0x5e0/0x5e0 [ 911.684185] ? trace_hardirqs_on_caller+0x310/0x310 [ 911.689236] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 911.694323] ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250 [ 911.700998] ? __switch_to_asm+0x40/0x70 [ 911.705065] ? __switch_to_asm+0x34/0x70 [ 911.709141] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 911.714003] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 911.719203] RIP: 0033:0x457569 [ 911.722416] Code: Bad RIP value. [ 911.725782] RSP: 002b:00007f413344dc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 911.733491] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457569 [ 911.740773] RDX: 0000000000000044 RSI: 00000000200002c0 RDI: 0000000000000008 [ 911.748057] RBP: 000000000072c040 R08: 0000000000000000 R09: 0000000000000000 [ 911.755349] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f413344e6d4 [ 911.762619] R13: 00000000004c58a6 R14: 00000000004d95b8 R15: 00000000ffffffff [ 911.770821] Mem-Info: [ 911.773277] active_anon:3662 inactive_anon:191 isolated_anon:0 [ 911.773277] active_file:15 inactive_file:16 isolated_file:0 [ 911.773277] unevictable:0 dirty:0 writeback:0 unstable:0 [ 911.773277] slab_reclaimable:10031 slab_unreclaimable:1544363 [ 911.773277] mapped:2 shmem:243 pagetables:283 bounce:0 [ 911.773277] free:24347 free_pcp:28 free_cma:0 [ 911.805958] Node 0 active_anon:14648kB inactive_anon:764kB active_file:60kB inactive_file:64kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:972kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 4096kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 911.832985] 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 [ 911.859434] lowmem_reserve[]: 0 2818 6321 6321 [ 911.864137] Node 0 DMA32 free:44036kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 911.891608] lowmem_reserve[]: 0 0 3503 3503 [ 911.896023] Node 0 Normal free:36688kB min:37364kB low:46704kB high:56044kB active_anon:14648kB inactive_anon:764kB active_file:60kB inactive_file:64kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:6016kB pagetables:1132kB bounce:0kB free_pcp:620kB local_pcp:0kB free_cma:0kB [ 911.924863] lowmem_reserve[]: 0 0 0 0 [ 911.928678] 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 [ 911.942278] Node 0 DMA32: 3*4kB (M) 1*8kB (M) 3*16kB (M) 2*32kB (M) 4*64kB (UM) 5*128kB (UM) 4*256kB (UM) 4*512kB (UM) 3*1024kB (UM) 2*2048kB (M) 8*4096kB (M) = 44036kB [ 911.957522] Node 0 Normal: 1202*4kB (ME) 717*8kB (ME) 335*16kB (ME) 173*32kB (UME) 84*64kB (UME) 30*128kB (ME) 8*256kB (ME) 2*512kB (M) 3*1024kB (UM) 0*2048kB 0*4096kB = 36800kB [ 911.973564] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 911.982412] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 911.991008] 323 total pagecache pages [ 911.994794] 0 pages in swap cache [ 911.998257] Swap cache stats: add 0, delete 0, find 0/0 [ 912.003600] Free swap = 0kB [ 912.006623] Total swap = 0kB [ 912.009624] 1965979 pages RAM [ 912.012704] 0 pages HighMem/MovableOnly [ 912.016684] 342854 pages reserved [ 912.020116] 0 pages cma reserved [ 912.023520] Unreclaimable slab info: [ 912.027403] Name Used Total [ 912.032954] pid_2 37KB 44KB [ 912.038354] TIPC 2KB 7KB [ 912.043704] SCTPv6 6KB 6KB [ 912.049073] sctp_chunk 1360815KB 1360815KB [ 912.054419] sctp_bind_bucket 3KB 7KB [ 912.059786] DCCPv6 4KB 7KB [ 912.065130] DCCP 4KB 6KB [ 912.070509] bridge_fdb_cache 2KB 7KB [ 912.075898] fib6_nodes 13KB 20KB [ 912.081264] ip6_dst_cache 109KB 112KB [ 912.086636] RAWv6 19KB 19KB [ 912.091980] UDPv6 14KB 14KB [ 912.097350] TCPv6 8KB 11KB [ 912.102712] nf_conntrack 0KB 3KB [ 912.108101] sd_ext_cdb 0KB 3KB [ 912.113453] scsi_sense_cache 1056KB 1060KB [ 912.118832] virtio_scsi_cmd 16KB 16KB [ 912.124178] sgpool-128 8KB 8KB [ 912.129549] sgpool-64 4KB 6KB [ 912.134893] sgpool-32 2KB 7KB [ 912.140278] sgpool-16 1KB 3KB [ 912.145621] sgpool-8 0KB 3KB [ 912.150992] mqueue_inode_cache 2KB 7KB [ 912.156455] bio_post_read_ctx 14KB 15KB [ 912.161864] bio-2 14KB 15KB [ 912.167241] jfs_mp 7KB 7KB [ 912.172608] nfs_commit_data 3KB 7KB [ 912.178016] nfs_write_data 32KB 32KB [ 912.183381] ext4_system_zone 0KB 3KB [ 912.188776] bio-1 1KB 3KB [ 912.194129] pid_namespace 0KB 3KB [ 912.199501] rpc_buffers 17KB 19KB [ 912.204846] rpc_tasks 2KB 3KB [ 912.210225] UNIX 433KB 438KB [ 912.215573] tcp_bind_bucket 0KB 4KB [ 912.220945] ip_fib_trie 2KB 3KB [ 912.226319] ip_fib_alias 9KB 11KB [ 912.231664] ip_dst_cache 694KB 700KB [ 912.237067] RAW 11KB 14KB [ 912.242414] UDP 34KB 39KB [ 912.247796] TCP 5KB 5KB [ 912.253155] hugetlbfs_inode_cache 2KB 7KB [ 912.258873] fscache_cookie_jar 1KB 3KB [ 912.264307] eventpoll_pwq 12KB 19KB [ 912.269679] eventpoll_epi 22KB 31KB [ 912.275026] inotify_inode_mark 8KB 11KB [ 912.280486] request_queue 142KB 151KB [ 912.285856] blkdev_ioc 26KB 30KB [ 912.291203] bio-0 341KB 341KB [ 912.296589] biovec-max 1377KB 1377KB [ 912.301941] biovec-64 291KB 291KB [ 912.307326] biovec-16 30KB 30KB [ 912.312683] bio_integrity_payload 1KB 3KB [ 912.318417] khugepaged_mm_slot 0KB 3KB [ 912.323848] uid_cache 1KB 8KB [ 912.329224] dmaengine-unmap-256 2KB 6KB [ 912.334745] dmaengine-unmap-128 1KB 3KB [ 912.340309] dmaengine-unmap-16 0KB 4KB [ 912.345792] dmaengine-unmap-2 0KB 3KB [ 912.351149] audit_buffer 0KB 3KB [ 912.356523] skbuff_fclone_cache 108KB 112KB [ 912.362043] skbuff_head_cache 1362825KB 1362825KB [ 912.367412] configfs_dir_cache 0KB 4KB [ 912.372843] file_lock_cache 174KB 176KB [ 912.378229] file_lock_ctx 1KB 3KB [ 912.383574] fsnotify_mark_connector 5KB 11KB [ 912.389478] net_namespace 8KB 8KB [ 912.394828] shmem_inode_cache 4602KB 4604KB [ 912.400205] task_delay_info 330KB 460KB [ 912.405554] taskstats 7KB 11KB [ 912.410922] proc_dir_entry 320KB 322KB [ 912.416306] pde_opener 14KB 27KB [ 912.421659] seq_file 141KB 633KB [ 912.427028] sigqueue 161KB 208KB [ 912.432372] kernfs_node_cache 8043KB 8048KB [ 912.437757] mnt_cache 30KB 32KB [ 912.443099] filp 6652KB 7586KB [ 912.448466] names_cache 93211KB 93240KB [ 912.453831] iint_cache 73KB 79KB [ 912.459240] key_jar 3KB 7KB [ 912.464585] uts_namespace 0KB 3KB [ 912.469955] nsproxy 0KB 3KB [ 912.475298] vm_area_struct 16943KB 17700KB [ 912.480667] mm_struct 4296KB 4920KB [ 912.486053] fs_cache 377KB 480KB [ 912.491417] files_cache 1413KB 1706KB [ 912.496788] signal_cache 2415KB 2918KB [ 912.502129] sighand_cache 413KB 464KB [ 912.507504] task_struct 10450KB 10450KB [ 912.512851] cred_jar 2169KB 2552KB [ 912.518227] anon_vma_chain 7864KB 9040KB [ 912.523570] anon_vma 111KB 362KB [ 912.528940] pid 179KB 332KB [ 912.534285] Acpi-Operand 106KB 162KB [ 912.539670] Acpi-Namespace 19KB 23KB [ 912.545024] numa_policy 0KB 3KB [ 912.550390] debug_objects_cache 954KB 1040KB [ 912.555935] trace_event_file 260KB 262KB [ 912.561277] ftrace_event_field 376KB 381KB [ 912.566772] pool_workqueue 71KB 76KB [ 912.572116] task_group 0KB 3KB [ 912.577487] page->ptl 2826KB 3360KB [ 912.582846] kmalloc-2M 2050KB 2050KB [ 912.588227] kmalloc-512k 2056KB 2056KB [ 912.593573] kmalloc-256k 1290KB 1290KB [ 912.598960] kmalloc-128k 650KB 650KB [ 912.604319] kmalloc-64k 330KB 330KB [ 912.609714] kmalloc-32k 16599KB 16599KB [ 912.615062] kmalloc-16k 1485KB 1485KB [ 912.620435] kmalloc-8k 1179KB 1179KB [ 912.625828] kmalloc-4k 9354KB 9354KB [ 912.631180] kmalloc-2k 8098KB 8102KB [ 912.636561] kmalloc-1k 8865KB 8867KB [ 912.641903] kmalloc-512 2725357KB 2725357KB [ 912.647308] kmalloc-256 2121KB 2171KB [ 912.652653] kmalloc-128 698KB 704KB [ 912.658035] kmalloc-96 1976KB 2528KB [ 912.663389] kmalloc-64 1717KB 1720KB [ 912.668760] kmalloc-32 1097KB 1708KB [ 912.674183] kmalloc-192 462KB 976KB [ 912.679592] kmem_cache 170KB 176KB [ 912.684956] Out of memory: Kill process 5992 (syz-execprog) score 1 or sacrifice child [ 912.693660] Killed process 5992 (syz-execprog) total-vm:39212kB, anon-rss:7280kB, file-rss:0kB, shmem-rss:0kB [ 912.704087] syz-execprog (5993) used greatest stack depth: 8552 bytes left [ 912.718016] oom_reaper: reaped process 5992 (syz-execprog), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 913.147863] rsyslogd invoked oom-killer: gfp_mask=0x6200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=0 [ 913.159271] rsyslogd cpuset=/ mems_allowed=0 [ 913.163739] CPU: 0 PID: 5874 Comm: rsyslogd Not tainted 4.20.0-rc1-next-20181109+ #110 [ 913.171803] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 913.181151] Call Trace: [ 913.183736] dump_stack+0x244/0x39d [ 913.187349] ? dump_stack_print_info.cold.1+0x20/0x20 [ 913.192525] ? mark_held_locks+0x130/0x130 [ 913.196777] ? mark_held_locks+0x130/0x130 [ 913.201021] dump_header+0x27b/0xf72 [ 913.204772] ? pagefault_out_of_memory+0x197/0x197 [ 913.209715] ? __lock_acquire+0x62f/0x4c20 [ 913.213962] ? mem_cgroup_css_online+0x3d0/0x3d0 [ 913.218732] ? print_usage_bug+0xc0/0xc0 [ 913.222802] ? print_usage_bug+0xc0/0xc0 [ 913.226875] ? graph_lock+0x270/0x270 [ 913.230686] ? print_usage_bug+0xc0/0xc0 [ 913.234752] ? print_usage_bug+0xc0/0xc0 [ 913.238821] ? graph_lock+0x270/0x270 [ 913.242649] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 913.248206] ? find_held_lock+0x36/0x1c0 [ 913.252289] ? mark_held_locks+0xc7/0x130 [ 913.256459] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 913.261572] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 913.266685] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 913.271280] ? trace_hardirqs_on+0xbd/0x310 [ 913.275613] ? kasan_check_read+0x11/0x20 [ 913.279804] ? ___ratelimit+0x3b4/0x672 [ 913.283833] ? trace_hardirqs_off_caller+0x300/0x300 [ 913.288943] ? trace_hardirqs_on+0x310/0x310 [ 913.293358] ? lock_downgrade+0x900/0x900 [ 913.297518] ? _raw_spin_unlock_irqrestore+0x6d/0xd0 [ 913.302628] ? ___ratelimit+0x3b9/0x672 [ 913.306613] ? idr_get_free+0xf70/0xf70 [ 913.310593] ? find_held_lock+0x36/0x1c0 [ 913.314671] oom_kill_process.cold.27+0x10/0x903 [ 913.319436] ? graph_lock+0x270/0x270 [ 913.323249] ? check_preemption_disabled+0x48/0x280 [ 913.328282] ? kasan_check_read+0x11/0x20 [ 913.332437] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 913.337744] ? oom_evaluate_task+0x540/0x540 [ 913.342166] ? find_held_lock+0x36/0x1c0 [ 913.346270] ? out_of_memory+0x96f/0x1430 [ 913.350426] ? lock_downgrade+0x900/0x900 [ 913.354572] ? check_preemption_disabled+0x48/0x280 [ 913.359572] ? kasan_check_read+0x11/0x20 [ 913.363734] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 913.369015] ? rcu_read_unlock_special+0x370/0x370 [ 913.373957] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 913.379499] ? oom_evaluate_task+0x302/0x540 [ 913.383934] out_of_memory+0xa7f/0x1430 [ 913.387919] ? unreserve_highatomic_pageblock+0x3e0/0x5d0 [ 913.393463] ? oom_killer_disable+0x3a0/0x3a0 [ 913.397982] ? __alloc_pages_slowpath+0xf27/0x2e30 [ 913.402920] ? __ww_mutex_check_waiters+0x160/0x160 [ 913.407943] ? find_next_bit+0x104/0x130 [ 913.412038] __alloc_pages_slowpath+0x236a/0x2e30 [ 913.416918] ? warn_alloc+0x120/0x120 [ 913.420727] ? mark_held_locks+0x130/0x130 [ 913.424977] ? find_get_entry+0xaae/0x1120 [ 913.429240] ? filemap_map_pages+0x1a20/0x1a20 [ 913.433836] ? graph_lock+0x270/0x270 [ 913.437664] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 913.443222] ? check_preemption_disabled+0x48/0x280 [ 913.448251] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 913.453813] ? should_fail+0x22d/0xd01 [ 913.457705] ? fault_create_debugfs_attr+0x1f0/0x1f0 [ 913.462817] ? graph_lock+0x270/0x270 [ 913.466663] ? __lock_is_held+0xb5/0x140 [ 913.470739] ? mark_held_locks+0x130/0x130 [ 913.474984] ? lock_release+0xa10/0xa10 [ 913.478969] ? perf_trace_sched_process_exec+0x860/0x860 [ 913.484426] ? xa_load+0x2ba/0x460 [ 913.487976] ? lock_downgrade+0x900/0x900 [ 913.492133] ? __might_sleep+0x95/0x190 [ 913.496120] __alloc_pages_nodemask+0xa7b/0xdd0 [ 913.500784] ? __alloc_pages_slowpath+0x2e30/0x2e30 [ 913.505796] ? __page_cache_alloc+0x177/0x570 [ 913.510298] ? xa_load+0x2e1/0x460 [ 913.513846] ? xa_clear_mark+0x40/0x40 [ 913.517747] ? graph_lock+0x270/0x270 [ 913.521559] ? graph_lock+0x270/0x270 [ 913.525371] ? graph_lock+0x270/0x270 [ 913.529177] ? __do_page_cache_readahead+0x663/0x810 [ 913.534303] ? find_held_lock+0x36/0x1c0 [ 913.538372] ? __sanitizer_cov_trace_const_cmp2+0x18/0x20 [ 913.543939] alloc_pages_current+0x173/0x350 [ 913.548374] __page_cache_alloc+0x3ce/0x570 [ 913.552705] ? kasan_check_read+0x11/0x20 [ 913.556856] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 913.562145] ? generic_perform_write+0x6a0/0x6a0 [ 913.566905] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 913.572452] ? check_preemption_disabled+0x48/0x280 [ 913.577483] filemap_fault+0x1595/0x25f0 [ 913.581561] ? __lock_page_or_retry+0xa00/0xa00 [ 913.586245] ? mark_held_locks+0x130/0x130 [ 913.590496] ? filemap_map_pages+0xd6b/0x1a20 [ 913.595012] ? lock_downgrade+0x900/0x900 [ 913.599164] ? check_preemption_disabled+0x48/0x280 [ 913.604210] ? kasan_check_read+0x11/0x20 [ 913.608376] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 913.613661] ? rcu_read_unlock_special+0x370/0x370 [ 913.618613] ? filemap_map_pages+0xd92/0x1a20 [ 913.623126] ? find_get_entries_tag+0x1400/0x1400 [ 913.628002] ? trace_hardirqs_off_caller+0x300/0x300 [ 913.633144] ? lock_acquire+0x1ed/0x520 [ 913.637123] ? ext4_filemap_fault+0x7a/0xad [ 913.641446] ? lock_release+0xa10/0xa10 [ 913.645405] ? perf_trace_sched_process_exec+0x860/0x860 [ 913.650854] ? print_usage_bug+0xc0/0xc0 [ 913.654921] ? print_usage_bug+0xc0/0xc0 [ 913.659002] ? down_read+0x8d/0x120 [ 913.662634] ? ext4_filemap_fault+0x7a/0xad [ 913.666966] ? __down_interruptible+0x700/0x700 [ 913.671681] ext4_filemap_fault+0x82/0xad [ 913.675868] __do_fault+0x100/0x6b0 [ 913.679543] ? pmd_devmap_trans_unstable+0x220/0x220 [ 913.684660] ? mark_held_locks+0x130/0x130 [ 913.688906] ? mark_held_locks+0x130/0x130 [ 913.693149] ? do_raw_spin_trylock+0x270/0x270 [ 913.697744] ? pgd_free+0x380/0x380 [ 913.701391] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 913.706941] __handle_mm_fault+0x3ea0/0x5be0 [ 913.711366] ? vmf_insert_mixed_mkwrite+0x40/0x40 [ 913.716235] ? find_held_lock+0x36/0x1c0 [ 913.720321] ? graph_lock+0x270/0x270 [ 913.724158] ? graph_lock+0x270/0x270 [ 913.727981] ? find_held_lock+0x36/0x1c0 [ 913.732060] ? handle_mm_fault+0x42a/0xc70 [ 913.736302] ? lock_downgrade+0x900/0x900 [ 913.740459] ? check_preemption_disabled+0x48/0x280 [ 913.745503] ? kasan_check_read+0x11/0x20 [ 913.749655] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 913.754937] ? rcu_read_unlock_special+0x370/0x370 [ 913.759873] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 913.765431] ? check_preemption_disabled+0x48/0x280 [ 913.770482] handle_mm_fault+0x54f/0xc70 [ 913.774559] ? __handle_mm_fault+0x5be0/0x5be0 [ 913.779151] ? find_vma+0x34/0x190 [ 913.782707] __do_page_fault+0x5d6/0xe40 [ 913.786766] ? trace_hardirqs_off+0xb8/0x310 [ 913.791202] do_page_fault+0xed/0x7d1 [ 913.795039] ? vmalloc_sync_all+0x30/0x30 [ 913.799226] ? error_entry+0x70/0xd0 [ 913.802961] ? trace_hardirqs_off_caller+0xbb/0x300 [ 913.807986] ? trace_hardirqs_on_caller+0xc0/0x310 [ 913.812922] ? syscall_return_slowpath+0x5e0/0x5e0 [ 913.817855] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 913.822710] ? trace_hardirqs_on_caller+0x310/0x310 [ 913.827732] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 913.833189] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 913.838245] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 913.843808] ? prepare_exit_to_usermode+0x291/0x3b0 [ 913.848830] ? page_fault+0x8/0x30 [ 913.852392] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 913.857273] ? page_fault+0x8/0x30 [ 913.860826] page_fault+0x1e/0x30 [ 913.864283] RIP: 0033:0x41a83f [ 913.867487] Code: Bad RIP value. [ 913.870864] RSP: 002b:00007fc963a9cd70 EFLAGS: 00010202 [ 913.876246] RAX: 0000000000000000 RBX: 00007fc963a9cd88 RCX: 0000000000000000 [ 913.883517] RDX: 0000000000000000 RSI: 000000000000000a RDI: 0000000000000002 [ 913.890790] RBP: 0000000000000006 R08: 0000000000000000 R09: 00000000000007e2 [ 913.898059] R10: 0000000000000011 R11: a3d70a3d70a3d70b R12: 0000000000000000 [ 913.905332] R13: 00007fc9652d25a3 R14: 0000000000000001 R15: 00007fc9652d165d [ 913.914027] Mem-Info: [ 913.916501] active_anon:1820 inactive_anon:191 isolated_anon:0 [ 913.916501] active_file:16 inactive_file:40 isolated_file:0 [ 913.916501] unevictable:0 dirty:0 writeback:0 unstable:0 [ 913.916501] slab_reclaimable:10031 slab_unreclaimable:1546199 [ 913.916501] mapped:2 shmem:243 pagetables:266 bounce:0 [ 913.916501] free:24389 free_pcp:40 free_cma:0 [ 913.951969] Node 0 active_anon:7280kB inactive_anon:764kB active_file:164kB inactive_file:64kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:972kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no [ 913.985615] 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 [ 914.039163] lowmem_reserve[]: 0 2818 6321 6321 [ 914.043784] Node 0 DMA32 free:44036kB min:30052kB low:37564kB high:45076kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2888772kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 914.101262] lowmem_reserve[]: 0 0 3503 3503 [ 914.105617] Node 0 Normal free:36812kB min:37364kB low:46704kB high:56044kB active_anon:7280kB inactive_anon:764kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:4718592kB managed:3587820kB mlocked:0kB kernel_stack:5792kB pagetables:1064kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 914.137408] lowmem_reserve[]: 0 0 0 0 [ 914.141251] 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 [ 914.154931] Node 0 DMA32: 3*4kB (M) 1*8kB (M) 3*16kB (M) 2*32kB (M) 4*64kB (UM) 5*128kB (UM) 4*256kB (UM) 4*512kB (UM) 3*1024kB (UM) 2*2048kB (M) 8*4096kB (M) = 44036kB [ 914.170211] Node 0 Normal: 1234*4kB (UME) 680*8kB (UME) 313*16kB (ME) 165*32kB (UME) 75*64kB (ME) 27*128kB (ME) 8*256kB (UME) 2*512kB (UM) 3*1024kB (UM) 1*2048kB (M) 0*4096kB = 37112kB [ 914.186926] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB [ 914.195814] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 914.204382] 265 total pagecache pages [ 914.208191] 0 pages in swap cache [ 914.211678] Swap cache stats: add 0, delete 0, find 0/0 [ 914.217101] Free swap = 0kB [ 914.220118] Total swap = 0kB [ 914.223127] 1965979 pages RAM [ 914.226277] 0 pages HighMem/MovableOnly [ 914.230251] 342854 pages reserved [ 914.233692] 0 pages cma reserved [ 914.237066] Unreclaimable slab info: [ 914.240760] Name Used Total [ 914.246328] pid_2 37KB 44KB [ 914.251742] TIPC 2KB 7KB [ 914.257165] SCTPv6 6KB 6KB [ 914.262541] sctp_chunk 1362626KB 1362626KB [ 914.267910] sctp_bind_bucket 3KB 7KB [ 914.273257] DCCPv6 4KB 7KB [ 914.278657] DCCP 4KB 6KB [ 914.284028] bridge_fdb_cache 2KB 7KB [ 914.289442] fib6_nodes 13KB 20KB [ 914.294805] ip6_dst_cache 109KB 112KB [ 914.300204] RAWv6 19KB 19KB [ 914.305591] UDPv6 14KB 14KB [ 914.310993] TCPv6 8KB 11KB [ 914.316407] nf_conntrack 0KB 3KB [ 914.321797] sd_ext_cdb 0KB 3KB [ 914.327204] scsi_sense_cache 1056KB 1060KB [ 914.332631] virtio_scsi_cmd 16KB 16KB [ 914.338056] sgpool-128 8KB 8KB [ 914.343427] sgpool-64 4KB 6KB [ 914.348837] sgpool-32 2KB 7KB [ 914.354201] sgpool-16 1KB 3KB [ 914.359578] sgpool-8 0KB 3KB [ 914.364939] mqueue_inode_cache 2KB 7KB [ 914.370429] bio_post_read_ctx 14KB 15KB [ 914.375865] bio-2 14KB 15KB [ 914.381242] jfs_mp 7KB 7KB [ 914.386657] nfs_commit_data 3KB 7KB [ 914.392019] nfs_write_data 32KB 32KB [ 914.397439] ext4_system_zone 0KB 3KB [ 914.402807] bio-1 1KB 3KB [ 914.408250] pid_namespace 0KB 3KB [ 914.413623] rpc_buffers 17KB 19KB [ 914.419005] rpc_tasks 2KB 3KB [ 914.424348] UNIX 433KB 438KB [ 914.429725] tcp_bind_bucket 0KB 4KB [ 914.435076] ip_fib_trie 2KB 3KB [ 914.440470] ip_fib_alias 9KB 11KB [ 914.445877] ip_dst_cache 694KB 700KB [ 914.451273] RAW 11KB 14KB [ 914.456644] UDP 34KB 39KB [ 914.461992] TCP 5KB 5KB [ 914.467389] hugetlbfs_inode_cache 2KB 7KB [ 914.473116] fscache_cookie_jar 1KB 3KB [ 914.478612] eventpoll_pwq 12KB 19KB [ 914.483969] eventpoll_epi 22KB 31KB [ 914.489355] inotify_inode_mark 8KB 11KB [ 914.494787] request_queue 142KB 151KB [ 914.500184] blkdev_ioc 26KB 30KB [ 914.505587] bio-0 393KB 393KB [ 914.510977] biovec-max 1386KB 1386KB [ 914.516356] biovec-64 401KB 401KB [ 914.521701] biovec-16 41KB 41KB [ 914.527093] bio_integrity_payload 1KB 3KB [ 914.532823] khugepaged_mm_slot 0KB 3KB [ 914.538299] uid_cache 1KB 8KB [ 914.543645] dmaengine-unmap-256 2KB 6KB [ 914.549280] dmaengine-unmap-128 1KB 3KB [ 914.554838] dmaengine-unmap-16 0KB 4KB [ 914.560326] dmaengine-unmap-2 0KB 3KB [ 914.565675] audit_buffer 0KB 3KB [ 914.571052] skbuff_fclone_cache 108KB 112KB [ 914.576626] skbuff_head_cache 1364655KB 1364655KB [ 914.581994] configfs_dir_cache 0KB 4KB [ 914.587488] file_lock_cache 174KB 176KB [ 914.592864] file_lock_ctx 1KB 3KB [ 914.598269] fsnotify_mark_connector 5KB 11KB [ 914.604133] net_namespace 8KB 8KB [ 914.609529] shmem_inode_cache 4602KB 4604KB [ 914.614890] task_delay_info 330KB 460KB [ 914.620278] taskstats 11KB 11KB [ 914.625661] proc_dir_entry 320KB 322KB [ 914.631034] pde_opener 14KB 27KB [ 914.636446] seq_file 141KB 633KB [ 914.641812] sigqueue 167KB 208KB [ 914.647250] kernfs_node_cache 8043KB 8048KB [ 914.652608] mnt_cache 30KB 32KB [ 914.657981] filp 6652KB 7586KB [ 914.663331] names_cache 93211KB 93240KB [ 914.668739] iint_cache 73KB 79KB [ 914.674099] key_jar 3KB 7KB [ 914.679505] uts_namespace 0KB 3KB [ 914.684875] nsproxy 0KB 3KB [ 914.690252] vm_area_struct 16943KB 17700KB [ 914.695598] mm_struct 4296KB 4920KB [ 914.701007] fs_cache 377KB 480KB [ 914.706414] files_cache 1413KB 1706KB [ 914.711776] signal_cache 2415KB 2918KB [ 914.717163] sighand_cache 413KB 464KB [ 914.722508] task_struct 10450KB 10450KB [ 914.727905] cred_jar 2169KB 2552KB [ 914.733272] anon_vma_chain 7864KB 9040KB [ 914.738678] anon_vma 111KB 362KB [ 914.744035] pid 179KB 332KB [ 914.749407] Acpi-Operand 106KB 162KB [ 914.754753] Acpi-Namespace 19KB 23KB [ 914.760149] numa_policy 0KB 3KB [ 914.765512] debug_objects_cache 954KB 1040KB [ 914.771057] trace_event_file 260KB 262KB [ 914.776438] ftrace_event_field 376KB 381KB [ 914.781869] pool_workqueue 71KB 76KB [ 914.787301] task_group 0KB 3KB [ 914.792688] page->ptl 2826KB 3360KB [ 914.798108] kmalloc-2M 2050KB 2050KB [ 914.803453] kmalloc-512k 2056KB 2056KB [ 914.809042] kmalloc-256k 1290KB 1290KB [ 914.814387] kmalloc-128k 650KB 650KB [ 914.819777] kmalloc-64k 330KB 330KB [ 914.825142] kmalloc-32k 16599KB 16599KB [ 914.830527] kmalloc-16k 1485KB 1485KB [ 914.835900] kmalloc-8k 1179KB 1179KB [ 914.841260] kmalloc-4k 9354KB 9354KB [ 914.846656] kmalloc-2k 8098KB 8102KB [ 914.852039] kmalloc-1k 8865KB 8867KB [ 914.857463] kmalloc-512 2729055KB 2729055KB [ 914.862839] kmalloc-256 2121KB 2171KB [ 914.868247] kmalloc-128 698KB 704KB [ 914.873593] kmalloc-96 1984KB 2528KB [ 914.878985] kmalloc-64 1717KB 1720KB [ 914.884343] kmalloc-32 1097KB 1708KB [ 914.889739] kmalloc-192 462KB 976KB [ 914.895102] kmem_cache 170KB 176KB [ 914.900480] Out of memory: Kill process 5727 (dhclient) score 0 or sacrifice child [ 914.908958] Killed process 5727 (dhclient) total-vm:9972kB, anon-rss:2296kB, file-rss:0kB, shmem-rss:0kB [ 914.922148] oom_reaper: reaped process 5727 (dhclient), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB