[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 12.262056] audit: type=1400 audit(1513768447.684:6): avc: denied { map } for pid=3128 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 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added 'ci-upstream-kasan-gce-6,10.128.0.28' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 40.649367] audit: type=1400 audit(1513768476.072:7): avc: denied { map } for pid=3147 comm="syzkaller480650" path="/root/syzkaller480650094" 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 [ 44.561329] syzkaller480650 invoked oom-killer: gfp_mask=0x14000c0(GFP_KERNEL), nodemask=(null), order=0, oom_score_adj=0 [ 44.572492] syzkaller480650 cpuset=/ mems_allowed=0 [ 44.577749] CPU: 0 PID: 3147 Comm: syzkaller480650 Not tainted 4.15.0-rc4+ #229 [ 44.585178] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.594508] Call Trace: [ 44.597078] dump_stack+0x194/0x257 [ 44.600686] ? arch_local_irq_restore+0x53/0x53 [ 44.605340] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 44.610511] dump_header+0x28c/0xe1e [ 44.614198] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 44.619370] ? pagefault_out_of_memory+0x152/0x152 [ 44.624280] ? print_irqtrace_events+0x270/0x270 [ 44.629013] ? __lock_acquire+0x664/0x3e00 [ 44.633237] ? check_noncircular+0x20/0x20 [ 44.637465] ? find_held_lock+0x35/0x1d0 [ 44.641519] ? check_noncircular+0x20/0x20 [ 44.645728] ? task_will_free_mem+0x252/0xaa0 [ 44.650196] ? print_irqtrace_events+0x270/0x270 [ 44.654925] ? ___ratelimit+0x30d/0x630 [ 44.658917] ? lock_downgrade+0x980/0x980 [ 44.663048] ? lock_release+0xa40/0xa40 [ 44.667020] ? mark_held_locks+0xaf/0x100 [ 44.671152] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 44.676240] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 44.681234] ? trace_hardirqs_on+0xd/0x10 [ 44.685375] ? ___ratelimit+0x95/0x630 [ 44.689250] ? idr_get_free_cmn+0xfd0/0xfd0 [ 44.693554] ? check_noncircular+0x20/0x20 [ 44.697761] ? find_held_lock+0x138/0x1d0 [ 44.701890] oom_kill_process+0x8b5/0x14a0 [ 44.706100] ? has_ns_capability_noaudit+0x163/0x2a0 [ 44.711212] ? lock_downgrade+0x980/0x980 [ 44.715350] ? oom_evaluate_task+0x480/0x480 [ 44.719746] ? security_capable_noaudit+0x8b/0xc0 [ 44.724563] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 44.729641] ? has_capability+0x30/0x30 [ 44.733594] ? do_raw_spin_trylock+0x190/0x190 [ 44.738153] ? check_noncircular+0x20/0x20 [ 44.742361] ? has_capability_noaudit+0x24/0x30 [ 44.747000] ? oom_badness+0xd1/0x980 [ 44.750772] ? lock_release+0xa40/0xa40 [ 44.754715] ? do_try_to_free_pages+0xc53/0x1020 [ 44.759454] ? find_lock_task_mm+0x460/0x460 [ 44.763841] ? find_held_lock+0x35/0x1d0 [ 44.767892] ? out_of_memory+0xb3a/0x1220 [ 44.772015] ? lock_downgrade+0x980/0x980 [ 44.776134] ? lock_release+0xa40/0xa40 [ 44.780079] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 44.784983] ? oom_evaluate_task+0x284/0x480 [ 44.789374] out_of_memory+0x86d/0x1220 [ 44.793346] ? oom_killer_disable+0x310/0x310 [ 44.797817] ? mutex_trylock+0x23a/0x2d0 [ 44.801848] ? __lock_is_held+0xb6/0x140 [ 44.805881] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 44.811329] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 44.816174] ? warn_alloc+0x2b0/0x2b0 [ 44.819946] ? print_irqtrace_events+0x270/0x270 [ 44.824683] ? print_irqtrace_events+0x270/0x270 [ 44.829414] ? mark_held_locks+0xaf/0x100 [ 44.833548] ? _raw_spin_unlock_irq+0x27/0x70 [ 44.838022] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 44.843012] ? trace_hardirqs_on+0xd/0x10 [ 44.847145] ? _raw_spin_unlock_irq+0x27/0x70 [ 44.851628] ? mark_held_locks+0xaf/0x100 [ 44.855757] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 44.860750] ? retint_kernel+0x10/0x10 [ 44.864621] ? __lock_is_held+0xb6/0x140 [ 44.868672] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 44.874535] ? __might_sleep+0x95/0x190 [ 44.878483] __alloc_pages_nodemask+0x9fb/0xd80 [ 44.883139] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 44.888130] ? retint_kernel+0x10/0x10 [ 44.891987] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 44.896974] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 44.901710] ? retint_kernel+0x10/0x10 [ 44.905595] ? __sanitizer_cov_trace_pc+0x1/0x50 [ 44.910335] alloc_pages_current+0xb6/0x1e0 [ 44.914632] relay_open_buf.part.10+0x22e/0x9b0 [ 44.919295] relay_open+0x57a/0xa40 [ 44.922902] ? relay_open_buf.part.10+0x9b0/0x9b0 [ 44.927721] ? __debugfs_create_file+0x2cf/0x3d0 [ 44.932453] ? debugfs_create_file+0x57/0x70 [ 44.936833] do_blk_trace_setup+0x4a4/0xcd0 [ 44.941144] ? blk_tracer_print_line+0x40/0x40 [ 44.945715] ? __might_sleep+0x95/0x190 [ 44.949689] ? kasan_check_write+0x14/0x20 [ 44.953897] ? _copy_from_user+0x99/0x110 [ 44.958017] __blk_trace_setup+0xb6/0x140 [ 44.962135] ? do_blk_trace_setup+0xcd0/0xcd0 [ 44.966615] blk_trace_setup+0x4d/0x70 [ 44.970477] sg_ioctl+0xc71/0x2d90 [ 44.973986] ? lock_release+0xa40/0xa40 [ 44.977929] ? __handle_mm_fault+0x80e/0x3ce0 [ 44.982397] ? sg_new_write.isra.19+0x830/0x830 [ 44.987042] ? __pmd_alloc+0x4e0/0x4e0 [ 44.990907] ? is_bpf_text_address+0xa4/0x120 [ 44.995389] ? avc_has_extended_perms+0x7fa/0x12c0 [ 45.000303] ? avc_ss_reset+0x110/0x110 [ 45.004255] ? __do_page_fault+0x5f7/0xc90 [ 45.008481] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 45.014335] ? up_read+0x1a/0x40 [ 45.017684] ? rcu_note_context_switch+0x710/0x710 [ 45.022596] ? sg_new_write.isra.19+0x830/0x830 [ 45.027244] do_vfs_ioctl+0x1b1/0x1520 [ 45.031115] ? _cond_resched+0x14/0x30 [ 45.034984] ? ioctl_preallocate+0x2b0/0x2b0 [ 45.039371] ? selinux_capable+0x40/0x40 [ 45.043426] ? putname+0xf3/0x130 [ 45.046860] ? do_sys_open+0x320/0x6d0 [ 45.050725] ? security_file_ioctl+0x89/0xb0 [ 45.055118] SyS_ioctl+0x8f/0xc0 [ 45.058467] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 45.063194] RIP: 0033:0x443eb9 [ 45.066358] RSP: 002b:00007ffebe60ab78 EFLAGS: 00000206 ORIG_RAX: 0000000000000010 [ 45.074040] RAX: ffffffffffffffda RBX: 00000000004002e0 RCX: 0000000000443eb9 [ 45.081290] RDX: 000000002098f000 RSI: 00000000c0481273 RDI: 0000000000000003 [ 45.088537] RBP: 00000000006ce018 R08: 0000000000000000 R09: 0000000000000000 [ 45.095774] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000401ba0 [ 45.103017] R13: 0000000000401c30 R14: 0000000000000000 R15: 0000000000000000 [ 45.110324] Mem-Info: [ 45.112810] active_anon:4283 inactive_anon:33 isolated_anon:0 [ 45.112810] active_file:13 inactive_file:13 isolated_file:0 [ 45.112810] unevictable:0 dirty:0 writeback:0 unstable:0 [ 45.112810] slab_reclaimable:7183 slab_unreclaimable:84222 [ 45.112810] mapped:2 shmem:40 pagetables:309 bounce:0 [ 45.112810] free:24177 free_pcp:32 free_cma:0 [ 45.144835] Node 0 active_anon:17132kB inactive_anon:132kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:160kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 2048kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 45.171631] Node 0 DMA free:15908kB min:160kB low:200kB high:240kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 45.197746] lowmem_reserve[]: 0 2882 6395 6395 [ 45.202346] Node 0 DMA32 free:44024kB min:30384kB low:37980kB high:45576kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2954056kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 45.229517] lowmem_reserve[]: 0 0 3512 3512 [ 45.233840] Node 0 Normal free:36776kB min:37032kB low:46288kB high:55544kB active_anon:17132kB inactive_anon:132kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3597124kB mlocked:0kB kernel_stack:2752kB pagetables:1236kB bounce:0kB free_pcp:128kB local_pcp:120kB free_cma:0kB [ 45.263196] lowmem_reserve[]: 0 0 0 0 [ 45.267020] Node 0 DMA: 1*4kB (U) 0*8kB 0*16kB 1*32kB (U) 2*64kB (U) 1*128kB (U) 1*256kB (U) 0*512kB 1*1024kB (U) 1*2048kB (M) 3*4096kB (M) = 15908kB [ 45.280662] Node 0 DMA32: 2*4kB (M) 2*8kB (UE) 4*16kB (UME) 3*32kB (UME) 3*64kB (ME) 5*128kB (UME) 4*256kB (ME) 4*512kB (ME) 3*1024kB (ME) 4*2048kB (UME) 7*4096kB (M) = 44024kB [ 45.296653] Node 0 Normal: 564*4kB (ME) 435*8kB (UME) 270*16kB (M) 145*32kB (M) 83*64kB (M) 39*128kB (M) 20*256kB (M) 11*512kB (M) 1*1024kB (M) 0*2048kB 0*4096kB = 36776kB [ 45.312173] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 45.320737] 66 total pagecache pages [ 45.324452] 0 pages in swap cache [ 45.327895] Swap cache stats: add 0, delete 0, find 0/0 [ 45.333240] Free swap = 0kB [ 45.336251] Total swap = 0kB [ 45.339260] 1965979 pages RAM [ 45.342356] 0 pages HighMem/MovableOnly [ 45.346331] 324207 pages reserved [ 45.349823] Unreclaimable slab info: [ 45.353565] Name Used Total [ 45.359120] hashtab_node 118KB 119KB [ 45.364491] ebitmap_node 383KB 385KB [ 45.369848] avtab_node 1012KB 1013KB [ 45.375201] TIPC 1KB 7KB [ 45.380567] SCTPv6 2KB 4KB [ 45.385925] DCCPv6 2KB 7KB [ 45.391279] DCCP 2KB 6KB [ 45.396656] fib6_nodes 0KB 4KB [ 45.402033] ip6_dst_cache 6KB 11KB [ 45.407392] RAWv6 9KB 13KB [ 45.412741] UDPv6 12KB 14KB [ 45.418104] TCPv6 2KB 5KB [ 45.423465] sd_ext_cdb 0KB 3KB [ 45.428813] scsi_sense_cache 81KB 128KB [ 45.434176] virtio_scsi_cmd 16KB 16KB [ 45.439533] sgpool-128 8KB 8KB [ 45.444879] sgpool-64 4KB 6KB [ 45.450239] sgpool-32 55KB 55KB [ 45.455594] sgpool-16 22KB 22KB [ 45.460940] sgpool-8 164KB 183KB [ 45.466304] cfq_io_cq 15KB 19KB [ 45.471659] cfq_queue 29KB 30KB [ 45.477021] mqueue_inode_cache 1KB 7KB [ 45.482469] nfs_commit_data 3KB 7KB [ 45.487825] nfs_write_data 34KB 37KB [ 45.493176] jbd2_inode 1KB 3KB [ 45.498539] ext4_system_zone 0KB 3KB [ 45.503902] bio-1 1KB 3KB [ 45.509256] rpc_buffers 17KB 19KB [ 45.514614] rpc_tasks 2KB 3KB [ 45.519973] UNIX 1597KB 1599KB [ 45.525324] tcp_bind_bucket 0KB 4KB [ 45.530687] ip_fib_trie 0KB 3KB [ 45.536055] ip_fib_alias 0KB 3KB [ 45.541413] ip_dst_cache 4KB 7KB [ 45.546761] RAW 5KB 7KB [ 45.552127] UDP 31KB 39KB [ 45.557481] request_sock_TCP 1KB 3KB [ 45.562826] TCP 7KB 7KB [ 45.568189] hugetlbfs_inode_cache 1KB 7KB [ 45.573893] eventpoll_pwq 10KB 15KB [ 45.579240] eventpoll_epi 19KB 23KB [ 45.584598] inotify_inode_mark 4KB 7KB [ 45.590058] request_queue 36KB 90KB [ 45.595413] blkdev_ioc 20KB 27KB [ 45.600757] bio-0 278KB 300KB [ 45.606119] biovec-(1<<(21-12)) 445KB 445KB [ 45.611650] biovec-64 94KB 102KB [ 45.616995] biovec-16 10KB 15KB [ 45.622357] bio_integrity_payload 0KB 4KB [ 45.628078] khugepaged_mm_slot 0KB 3KB [ 45.633524] uid_cache 2KB 3KB [ 45.638870] dmaengine-unmap-2 0KB 3KB [ 45.644235] audit_buffer 0KB 3KB [ 45.649604] skbuff_fclone_cache 125KB 127KB [ 45.655126] skbuff_head_cache 1828KB 1833KB [ 45.660487] configfs_dir_cache 0KB 4KB [ 45.665928] file_lock_cache 150KB 150KB [ 45.671278] file_lock_ctx 1KB 3KB [ 45.676641] fsnotify_mark_connector 2KB 3KB [ 45.682534] shmem_inode_cache 876KB 879KB [ 45.687890] task_delay_info 275KB 395KB [ 45.693240] sigqueue 312KB 318KB [ 45.698599] kernfs_node_cache 1835KB 1838KB [ 45.703956] mnt_cache 14KB 16KB [ 45.709300] filp 8287KB 8295KB [ 45.714648] names_cache 116161KB 116199KB [ 45.719996] avc_node 38KB 39KB [ 45.725358] selinux_file_security 415KB 418KB [ 45.731170] selinux_inode_security 1895KB 1896KB [ 45.736963] key_jar 3KB 7KB [ 45.742310] nsproxy 0KB 3KB [ 45.747675] vm_area_struct 16936KB 16942KB [ 45.753045] mm_struct 3621KB 3658KB [ 45.758400] fs_cache 365KB 496KB [ 45.763747] files_cache 1361KB 1620KB [ 45.769111] signal_cache 2192KB 2609KB [ 45.774465] sighand_cache 205KB 263KB [ 45.779814] task_struct 9328KB 9352KB [ 45.785195] cred_jar 2214KB 2220KB [ 45.790552] anon_vma_chain 6911KB 6914KB [ 45.795901] anon_vma 165KB 277KB [ 45.801269] pid 191KB 292KB [ 45.806626] Acpi-Operand 106KB 170KB [ 45.811977] Acpi-Namespace 19KB 23KB [ 45.817338] numa_policy 0KB 3KB [ 45.822694] trace_event_file 144KB 147KB [ 45.828048] ftrace_event_field 254KB 255KB [ 45.833499] pool_workqueue 10KB 12KB [ 45.838855] page->ptl 2697KB 2699KB [ 45.844217] kmalloc-1048576 2052KB 2052KB [ 45.849577] kmalloc-262144 1032KB 1032KB [ 45.854932] kmalloc-131072 650KB 650KB [ 45.860280] kmalloc-65536 264KB 264KB [ 45.865638] kmalloc-32768 462KB 462KB [ 45.870992] kmalloc-16384 148KB 148KB [ 45.876347] kmalloc-8192 371KB 371KB [ 45.881704] kmalloc-4096 8580KB 8619KB [ 45.887070] kmalloc-2048 3000KB 3002KB [ 45.892427] kmalloc-1024 3472KB 3472KB [ 45.897773] kmalloc-512 3089KB 3288KB [ 45.903133] kmalloc-256 1553KB 1837KB [ 45.908490] kmalloc-128 405KB 507KB [ 45.913835] kmalloc-96 327KB 388KB [ 45.919196] kmalloc-64 710KB 804KB [ 45.924549] kmalloc-32 1837KB 2177KB [ 45.929951] kmalloc-192 152KB 200KB [ 45.935310] kmem_cache 96KB 101KB [ 45.940664] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 45.949312] [ 1602] 0 1602 5381 183 90112 0 -1000 udevd [ 45.957530] [ 2855] 0 2855 2493 572 61440 0 0 dhclient [ 45.965925] [ 2988] 0 2988 14265 175 118784 0 0 rsyslogd [ 45.974318] [ 3040] 0 3040 3736 45 69632 0 0 mcstransd [ 45.982795] [ 3042] 0 3042 4725 51 81920 0 0 cron [ 45.990836] [ 3064] 0 3064 12927 1228 131072 0 0 restorecond [ 45.999501] [ 3090] 0 3090 12490 153 135168 0 -1000 sshd [ 46.007568] [ 3114] 0 3114 3694 42 73728 0 0 getty [ 46.015715] [ 3115] 0 3115 3694 41 73728 0 0 getty [ 46.023843] [ 3116] 0 3116 3694 40 77824 0 0 getty [ 46.031969] [ 3117] 0 3117 3694 41 77824 0 0 getty [ 46.040105] [ 3118] 0 3118 3694 40 73728 0 0 getty [ 46.048272] [ 3119] 0 3119 3694 40 77824 0 0 getty [ 46.056424] [ 3120] 0 3120 3649 40 77824 0 0 getty [ 46.064575] [ 3124] 0 3124 5670 456 86016 0 -1000 udevd [ 46.072726] [ 3125] 0 3125 5670 456 86016 0 -1000 udevd [ 46.080880] [ 3145] 0 3145 17821 199 188416 0 0 sshd [ 46.088944] [ 3147] 0 3147 4383 513 40960 0 0 syzkaller480650 [ 46.097957] Out of memory: Kill process 3064 (restorecond) score 0 or sacrifice child [ 46.106317] Killed process 3064 (restorecond) total-vm:51708kB, anon-rss:4912kB, file-rss:0kB, shmem-rss:0kB [ 46.128331] rsyslogd invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=0 [ 46.140949] rsyslogd cpuset=/ mems_allowed=0 [ 46.145552] CPU: 1 PID: 2991 Comm: rsyslogd Not tainted 4.15.0-rc4+ #229 [ 46.152367] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.161695] Call Trace: [ 46.164266] dump_stack+0x194/0x257 [ 46.167878] ? arch_local_irq_restore+0x53/0x53 [ 46.172532] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 46.177718] dump_header+0x28c/0xe1e [ 46.181424] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 46.186603] ? pagefault_out_of_memory+0x152/0x152 [ 46.191510] ? check_noncircular+0x20/0x20 [ 46.195732] ? print_irqtrace_events+0x270/0x270 [ 46.200475] ? __lock_acquire+0x664/0x3e00 [ 46.204696] ? check_noncircular+0x20/0x20 [ 46.208922] ? find_held_lock+0x35/0x1d0 [ 46.212974] ? check_noncircular+0x20/0x20 [ 46.217191] ? task_will_free_mem+0x252/0xaa0 [ 46.221674] ? print_irqtrace_events+0x270/0x270 [ 46.226425] ? ___ratelimit+0x30d/0x630 [ 46.230380] ? lock_downgrade+0x980/0x980 [ 46.234515] ? lock_release+0xa40/0xa40 [ 46.238484] ? mark_held_locks+0xaf/0x100 [ 46.242613] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 46.247702] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 46.252701] ? trace_hardirqs_on+0xd/0x10 [ 46.256834] ? ___ratelimit+0x95/0x630 [ 46.260702] ? idr_get_free_cmn+0xfd0/0xfd0 [ 46.265008] ? check_noncircular+0x20/0x20 [ 46.269218] ? find_held_lock+0x138/0x1d0 [ 46.273358] oom_kill_process+0x8b5/0x14a0 [ 46.277582] ? has_ns_capability_noaudit+0x163/0x2a0 [ 46.282669] ? lock_downgrade+0x980/0x980 [ 46.286806] ? oom_evaluate_task+0x480/0x480 [ 46.291214] ? security_capable_noaudit+0x8b/0xc0 [ 46.296046] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 46.301128] ? has_capability+0x30/0x30 [ 46.305080] ? do_raw_spin_trylock+0x190/0x190 [ 46.309642] ? check_noncircular+0x20/0x20 [ 46.313869] ? has_capability_noaudit+0x24/0x30 [ 46.318520] ? oom_badness+0xd1/0x980 [ 46.322298] ? lock_release+0xa40/0xa40 [ 46.326249] ? do_try_to_free_pages+0xc53/0x1020 [ 46.330990] ? find_lock_task_mm+0x460/0x460 [ 46.335385] ? find_held_lock+0x35/0x1d0 [ 46.339437] ? out_of_memory+0xb3a/0x1220 [ 46.343569] ? lock_downgrade+0x980/0x980 [ 46.347700] ? lock_release+0xa40/0xa40 [ 46.351653] ? lock_acquire+0x1d5/0x580 [ 46.355610] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 46.360538] ? oom_evaluate_task+0x284/0x480 [ 46.364935] out_of_memory+0x86d/0x1220 [ 46.368905] ? oom_killer_disable+0x310/0x310 [ 46.373382] ? mutex_trylock+0x23a/0x2d0 [ 46.377427] ? __lock_is_held+0xb6/0x140 [ 46.381477] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 46.386927] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 46.391762] ? lock_downgrade+0x980/0x980 [ 46.395920] ? warn_alloc+0x2b0/0x2b0 [ 46.399700] ? lock_downgrade+0x980/0x980 [ 46.403846] ? radix_tree_lookup_slot+0x99/0xe0 [ 46.408523] ? find_get_entry+0x53c/0x9e0 [ 46.412679] ? blk_init_request_from_bio+0x3d0/0x3d0 [ 46.417773] ? __lock_acquire+0x664/0x3e00 [ 46.422010] ? __lock_is_held+0xb6/0x140 [ 46.426077] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 46.431959] ? __might_sleep+0x95/0x190 [ 46.435920] __alloc_pages_nodemask+0x9fb/0xd80 [ 46.440577] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 46.445579] ? add_to_page_cache_lru+0x510/0x510 [ 46.450327] ? check_noncircular+0x20/0x20 [ 46.454539] ? check_noncircular+0x20/0x20 [ 46.458764] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 46.463531] alloc_pages_current+0xb6/0x1e0 [ 46.467841] __page_cache_alloc+0x334/0x500 [ 46.472143] ? rcu_read_lock_held+0xa9/0xc0 [ 46.476447] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 46.483809] filemap_fault+0xefc/0x1c20 [ 46.487763] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 46.492953] ? __lock_page_or_retry+0x4f0/0x4f0 [ 46.497613] ? filemap_map_pages+0x942/0x15d0 [ 46.502110] ? find_get_entries_tag+0xeb0/0xeb0 [ 46.506762] ? lock_downgrade+0x980/0x980 [ 46.510895] ? check_noncircular+0x20/0x20 [ 46.515113] ? find_held_lock+0x35/0x1d0 [ 46.519156] ? print_irqtrace_events+0x270/0x270 [ 46.523891] ? print_irqtrace_events+0x270/0x270 [ 46.528631] ? is_bpf_text_address+0x7b/0x120 [ 46.533125] ? lock_acquire+0x1d5/0x580 [ 46.537076] ? lock_acquire+0x1d5/0x580 [ 46.541027] ? ext4_filemap_fault+0x7a/0xad [ 46.545331] ? __lock_acquire+0x664/0x3e00 [ 46.549551] ? lock_release+0xa40/0xa40 [ 46.553503] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 46.559373] ? rcu_note_context_switch+0x710/0x710 [ 46.564291] ? __might_sleep+0x95/0x190 [ 46.568254] ? down_read+0x96/0x150 [ 46.571859] ? ext4_filemap_fault+0x7a/0xad [ 46.576159] ? __down_interruptible+0x6b0/0x6b0 [ 46.580830] ext4_filemap_fault+0x82/0xad [ 46.584965] __do_fault+0xeb/0x30f [ 46.588485] ? vfs_read+0x11e/0x350 [ 46.592096] ? pte_offset_kernel+0xc7/0xc7 [ 46.596317] ? do_raw_spin_trylock+0x190/0x190 [ 46.600879] ? check_noncircular+0x20/0x20 [ 46.605104] ? check_noncircular+0x20/0x20 [ 46.609328] __handle_mm_fault+0x1d8f/0x3ce0 [ 46.613724] ? __pmd_alloc+0x4e0/0x4e0 [ 46.617607] ? find_held_lock+0x35/0x1d0 [ 46.621659] ? handle_mm_fault+0x248/0x8d0 [ 46.625874] ? lock_downgrade+0x980/0x980 [ 46.630037] handle_mm_fault+0x334/0x8d0 [ 46.634076] ? down_read_trylock+0xdb/0x170 [ 46.638374] ? __do_page_fault+0x32d/0xc90 [ 46.642589] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 46.647149] ? vmacache_find+0x5f/0x280 [ 46.651100] ? vmacache_update+0xfe/0x130 [ 46.655234] ? find_vma+0x30/0x150 [ 46.658763] __do_page_fault+0x5c9/0xc90 [ 46.662804] ? vfs_copy_file_range+0x940/0x940 [ 46.667377] ? mm_fault_error+0x2c0/0x2c0 [ 46.671506] ? avc_policy_seqno+0x9/0x20 [ 46.675561] do_page_fault+0xee/0x720 [ 46.679348] ? __do_page_fault+0xc90/0xc90 [ 46.683563] ? __fdget_raw+0x20/0x20 [ 46.687275] ? fput+0xd2/0x140 [ 46.690454] ? SyS_read+0x184/0x220 [ 46.694062] ? retint_user+0x18/0x18 [ 46.697758] ? page_fault+0x36/0x60 [ 46.701366] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 46.706191] ? page_fault+0x36/0x60 [ 46.709800] page_fault+0x4c/0x60 [ 46.713229] RIP: 0033:0x7f0d327f8db4 [ 46.716917] RSP: 002b:00007f0d311c7e40 EFLAGS: 00010217 [ 46.722260] RAX: 0000000000000110 RBX: 00000000008cc4b0 RCX: 00007f0d33c281fd [ 46.729504] RDX: 0000000000000110 RSI: 00007f0d329fc5a0 RDI: 0000000000000000 [ 46.736749] RBP: 0000000000000000 R08: 00000000008b7260 R09: 0000000004000001 [ 46.743996] R10: 0000000000000001 R11: 0000000000000000 R12: 000000000065e420 [ 46.751244] R13: 00007f0d311c89c0 R14: 00007f0d3426d040 R15: 0000000000000003 [ 46.758651] Mem-Info: [ 46.762168] active_anon:3053 inactive_anon:33 isolated_anon:0 [ 46.762168] active_file:13 inactive_file:13 isolated_file:0 [ 46.762168] unevictable:0 dirty:0 writeback:0 unstable:0 [ 46.762168] slab_reclaimable:7183 slab_unreclaimable:84225 [ 46.762168] mapped:2 shmem:40 pagetables:282 bounce:0 [ 46.762168] free:24234 free_pcp:1 free_cma:0 [ 46.794154] Node 0 active_anon:12212kB inactive_anon:132kB active_file:52kB inactive_file:52kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:8kB dirty:0kB writeback:0kB shmem:160kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 2048kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 46.820964] Node 0 DMA free:15908kB min:160kB low:200kB high:240kB 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 [ 46.847100] lowmem_reserve[]: 0 2882 6395 6395 [ 46.851711] Node 0 DMA32 free:44024kB min:30384kB low:37980kB high:45576kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2954056kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 46.878880] lowmem_reserve[]: 0 0 3512 3512 [ 46.883228] Node 0 Normal free:37004kB min:37032kB low:46288kB high:55544kB active_anon:12212kB inactive_anon:132kB active_file:52kB inactive_file:52kB unevictable:0kB writepending:0kB present:4718592kB managed:3597124kB mlocked:0kB kernel_stack:2720kB pagetables:1128kB bounce:0kB free_pcp:4kB local_pcp:4kB free_cma:0kB [ 46.912513] lowmem_reserve[]: 0 0 0 0 [ 46.916353] 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 [ 46.930031] Node 0 DMA32: 2*4kB (M) 2*8kB (UE) 4*16kB (UME) 3*32kB (UME) 3*64kB (ME) 5*128kB (UME) 4*256kB (ME) 4*512kB (ME) 3*1024kB (ME) 4*2048kB (UME) 7*4096kB (M) = 44024kB [ 46.946039] Node 0 Normal: 537*4kB (UME) 411*8kB (UME) 280*16kB (UM) 181*32kB (M) 98*64kB (M) 40*128kB (M) 19*256kB (M) 10*512kB (M) 0*1024kB 0*2048kB 0*4096kB = 37084kB [ 46.961416] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 46.969992] 66 total pagecache pages [ 46.973715] 0 pages in swap cache [ 46.977182] Swap cache stats: add 0, delete 0, find 0/0 [ 46.982544] Free swap = 0kB [ 46.985562] Total swap = 0kB [ 46.988579] 1965979 pages RAM [ 46.991687] 0 pages HighMem/MovableOnly [ 46.995664] 324207 pages reserved [ 46.999181] Unreclaimable slab info: [ 47.002973] Name Used Total [ 47.008546] hashtab_node 118KB 119KB [ 47.013918] ebitmap_node 382KB 385KB [ 47.019290] avtab_node 1012KB 1013KB [ 47.024667] TIPC 1KB 7KB [ 47.030040] SCTPv6 2KB 4KB [ 47.035413] DCCPv6 2KB 7KB [ 47.041635] DCCP 2KB 6KB [ 47.047048] fib6_nodes 0KB 4KB [ 47.052418] ip6_dst_cache 6KB 11KB [ 47.057787] RAWv6 9KB 13KB [ 47.063156] UDPv6 12KB 14KB [ 47.068525] TCPv6 2KB 5KB [ 47.074459] sd_ext_cdb 0KB 3KB [ 47.079831] scsi_sense_cache 81KB 128KB [ 47.085200] virtio_scsi_cmd 16KB 16KB [ 47.090571] sgpool-128 8KB 8KB [ 47.095941] sgpool-64 4KB 6KB [ 47.101309] sgpool-32 63KB 63KB [ 47.106677] sgpool-16 23KB 26KB [ 47.112042] sgpool-8 164KB 183KB [ 47.117418] cfq_io_cq 18KB 19KB [ 47.122789] cfq_queue 27KB 30KB [ 47.128157] mqueue_inode_cache 1KB 7KB [ 47.133611] nfs_commit_data 3KB 7KB [ 47.138980] nfs_write_data 34KB 37KB [ 47.144350] jbd2_inode 1KB 3KB [ 47.149721] ext4_system_zone 0KB 3KB [ 47.155100] bio-1 1KB 3KB [ 47.160474] rpc_buffers 17KB 19KB [ 47.165842] rpc_tasks 2KB 3KB [ 47.171996] UNIX 1594KB 1599KB [ 47.177380] tcp_bind_bucket 0KB 4KB [ 47.182753] ip_fib_trie 0KB 3KB [ 47.188123] ip_fib_alias 0KB 3KB [ 47.193491] ip_dst_cache 4KB 7KB [ 47.198861] RAW 5KB 7KB [ 47.204231] UDP 31KB 39KB [ 47.209601] request_sock_TCP 0KB 3KB [ 47.214969] TCP 7KB 7KB [ 47.220335] hugetlbfs_inode_cache 1KB 7KB [ 47.226049] eventpoll_pwq 10KB 15KB [ 47.231420] eventpoll_epi 19KB 23KB [ 47.236799] inotify_inode_mark 4KB 7KB [ 47.242261] request_queue 33KB 67KB [ 47.247633] blkdev_ioc 24KB 27KB [ 47.253003] bio-0 278KB 300KB [ 47.258395] biovec-(1<<(21-12)) 445KB 445KB [ 47.263942] biovec-64 102KB 102KB [ 47.269308] biovec-16 15KB 15KB [ 47.274677] bio_integrity_payload 0KB 4KB [ 47.280398] khugepaged_mm_slot 0KB 3KB [ 47.285858] uid_cache 1KB 3KB [ 47.291226] dmaengine-unmap-2 0KB 3KB [ 47.296592] audit_buffer 0KB 3KB [ 47.301992] skbuff_fclone_cache 125KB 127KB [ 47.308324] skbuff_head_cache 1825KB 1833KB [ 47.313700] configfs_dir_cache 0KB 4KB [ 47.319158] file_lock_cache 150KB 150KB [ 47.324528] file_lock_ctx 1KB 3KB [ 47.329893] fsnotify_mark_connector 2KB 3KB [ 47.335782] shmem_inode_cache 876KB 879KB [ 47.341148] task_delay_info 274KB 395KB [ 47.346520] sigqueue 312KB 318KB [ 47.351889] kernfs_node_cache 1835KB 1838KB [ 47.357257] mnt_cache 14KB 16KB [ 47.362628] filp 8280KB 8295KB [ 47.367998] names_cache 116152KB 116190KB [ 47.373396] avc_node 38KB 39KB [ 47.378765] selinux_file_security 414KB 418KB [ 47.384478] selinux_inode_security 1894KB 1896KB [ 47.390280] key_jar 3KB 7KB [ 47.395650] nsproxy 0KB 3KB [ 47.401033] vm_area_struct 16933KB 16942KB [ 47.406406] mm_struct 3613KB 3658KB [ 47.411776] fs_cache 364KB 496KB [ 47.417147] files_cache 1360KB 1620KB [ 47.422519] signal_cache 2185KB 2609KB [ 47.427886] sighand_cache 205KB 263KB [ 47.433268] task_struct 9316KB 9352KB [ 47.438634] cred_jar 2208KB 2220KB [ 47.444821] anon_vma_chain 6909KB 6914KB [ 47.450269] anon_vma 138KB 269KB [ 47.455638] pid 191KB 292KB [ 47.461029] Acpi-Operand 106KB 170KB [ 47.466402] Acpi-Namespace 19KB 23KB [ 47.471770] numa_policy 0KB 3KB [ 47.477140] trace_event_file 144KB 147KB [ 47.482511] ftrace_event_field 254KB 255KB [ 47.487968] pool_workqueue 10KB 12KB [ 47.493336] page->ptl 2695KB 2699KB [ 47.498727] kmalloc-1048576 2052KB 2052KB [ 47.504098] kmalloc-262144 1032KB 1032KB [ 47.509465] kmalloc-131072 650KB 650KB [ 47.514831] kmalloc-65536 264KB 264KB [ 47.520196] kmalloc-32768 462KB 462KB [ 47.525562] kmalloc-16384 148KB 148KB [ 47.530933] kmalloc-8192 371KB 371KB [ 47.536300] kmalloc-4096 8572KB 8602KB [ 47.541668] kmalloc-2048 2998KB 3002KB [ 47.547034] kmalloc-1024 3472KB 3472KB [ 47.552405] kmalloc-512 3082KB 3285KB [ 47.557771] kmalloc-256 1549KB 1837KB [ 47.563147] kmalloc-128 401KB 507KB [ 47.568518] kmalloc-96 327KB 388KB [ 47.573885] kmalloc-64 710KB 804KB [ 47.580046] kmalloc-32 1836KB 2177KB [ 47.585530] kmalloc-192 152KB 200KB [ 47.590904] kmem_cache 96KB 101KB [ 47.596270] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 47.604912] [ 1602] 0 1602 5381 183 90112 0 -1000 udevd [ 47.613117] [ 2855] 0 2855 2493 572 61440 0 0 dhclient [ 47.621529] [ 2988] 0 2988 14265 174 118784 0 0 rsyslogd [ 47.629945] [ 3040] 0 3040 3736 45 69632 0 0 mcstransd [ 47.638444] [ 3042] 0 3042 4725 51 81920 0 0 cron [ 47.646514] [ 3090] 0 3090 12490 153 135168 0 -1000 sshd [ 47.654585] [ 3114] 0 3114 3694 42 73728 0 0 getty [ 47.662736] [ 3115] 0 3115 3694 41 73728 0 0 getty [ 47.670888] [ 3116] 0 3116 3694 40 77824 0 0 getty [ 47.679040] [ 3117] 0 3117 3694 41 77824 0 0 getty [ 47.687189] [ 3118] 0 3118 3694 40 73728 0 0 getty [ 47.695362] [ 3119] 0 3119 3694 40 77824 0 0 getty [ 47.703525] [ 3120] 0 3120 3649 40 77824 0 0 getty [ 47.711702] [ 3124] 0 3124 5670 456 86016 0 -1000 udevd [ 47.719848] [ 3125] 0 3125 5670 456 86016 0 -1000 udevd [ 47.727989] [ 3145] 0 3145 17821 199 188416 0 0 sshd [ 47.736039] [ 3147] 0 3147 4383 513 40960 0 0 syzkaller480650 [ 47.745040] Out of memory: Kill process 2855 (dhclient) score 0 or sacrifice child [ 47.753204] Killed process 2855 (dhclient) total-vm:9972kB, anon-rss:2288kB, file-rss:0kB, shmem-rss:0kB [ 48.045802] syzkaller480650 invoked oom-killer: gfp_mask=0x14000c0(GFP_KERNEL), nodemask=(null), order=0, oom_score_adj=0 [ 48.057762] syzkaller480650 cpuset=/ mems_allowed=0 [ 48.062805] CPU: 1 PID: 3147 Comm: syzkaller480650 Not tainted 4.15.0-rc4+ #229 [ 48.070228] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.079562] Call Trace: [ 48.082137] dump_stack+0x194/0x257 [ 48.085748] ? arch_local_irq_restore+0x53/0x53 [ 48.090489] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 48.095672] dump_header+0x28c/0xe1e [ 48.099377] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 48.104548] ? print_irqtrace_events+0x270/0x270 [ 48.109288] ? pagefault_out_of_memory+0x152/0x152 [ 48.114201] ? check_noncircular+0x20/0x20 [ 48.118421] ? print_irqtrace_events+0x270/0x270 [ 48.123167] ? __lock_acquire+0x664/0x3e00 [ 48.127387] ? check_noncircular+0x20/0x20 [ 48.131613] ? find_held_lock+0x35/0x1d0 [ 48.135666] ? check_noncircular+0x20/0x20 [ 48.139879] ? task_will_free_mem+0x252/0xaa0 [ 48.144364] ? print_irqtrace_events+0x270/0x270 [ 48.149112] ? ___ratelimit+0x30d/0x630 [ 48.153070] ? lock_downgrade+0x980/0x980 [ 48.157203] ? lock_release+0xa40/0xa40 [ 48.161167] ? mark_held_locks+0xaf/0x100 [ 48.165297] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 48.170388] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 48.175388] ? trace_hardirqs_on+0xd/0x10 [ 48.179518] ? ___ratelimit+0x95/0x630 [ 48.183388] ? idr_get_free_cmn+0xfd0/0xfd0 [ 48.187690] ? check_noncircular+0x20/0x20 [ 48.191900] ? find_held_lock+0x138/0x1d0 [ 48.196040] oom_kill_process+0x8b5/0x14a0 [ 48.200260] ? has_ns_capability_noaudit+0x163/0x2a0 [ 48.205344] ? lock_downgrade+0x980/0x980 [ 48.209479] ? oom_evaluate_task+0x480/0x480 [ 48.213887] ? security_capable_noaudit+0x8b/0xc0 [ 48.218719] ? has_ns_capability_noaudit+0x18c/0x2a0 [ 48.223800] ? has_capability+0x30/0x30 [ 48.227752] ? do_raw_spin_trylock+0x190/0x190 [ 48.232318] ? check_noncircular+0x20/0x20 [ 48.236546] ? has_capability_noaudit+0x24/0x30 [ 48.241195] ? oom_badness+0xd1/0x980 [ 48.244972] ? lock_release+0xa40/0xa40 [ 48.248925] ? do_try_to_free_pages+0xc53/0x1020 [ 48.253666] ? find_lock_task_mm+0x460/0x460 [ 48.258061] ? find_held_lock+0x35/0x1d0 [ 48.262141] ? out_of_memory+0xb3a/0x1220 [ 48.266271] ? lock_downgrade+0x980/0x980 [ 48.270407] ? lock_release+0xa40/0xa40 [ 48.274366] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 48.279287] ? oom_evaluate_task+0x284/0x480 [ 48.283686] out_of_memory+0x86d/0x1220 [ 48.287639] ? trace_hardirqs_on+0xd/0x10 [ 48.291780] ? oom_killer_disable+0x310/0x310 [ 48.296251] ? mutex_trylock+0x23a/0x2d0 [ 48.300305] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 48.305735] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 48.311614] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 48.316484] ? warn_alloc+0x2b0/0x2b0 [ 48.320259] ? trace_hardirqs_off+0xd/0x10 [ 48.324471] ? switch_mm_irqs_off+0x821/0x1640 [ 48.329043] ? mark_held_locks+0xaf/0x100 [ 48.333172] ? _raw_spin_unlock_irq+0x27/0x70 [ 48.337648] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 48.342645] ? trace_hardirqs_on+0xd/0x10 [ 48.346772] ? _raw_spin_unlock_irq+0x27/0x70 [ 48.351248] ? finish_task_switch+0x1d3/0x740 [ 48.355724] ? finish_task_switch+0x1aa/0x740 [ 48.360231] ? __schedule+0x8f3/0x2060 [ 48.364157] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 48.370037] ? __might_sleep+0x95/0x190 [ 48.374002] __alloc_pages_nodemask+0x9fb/0xd80 [ 48.378660] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 48.383656] ? mark_held_locks+0xaf/0x100 [ 48.387782] ? retint_kernel+0x10/0x10 [ 48.391653] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 48.396650] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 48.401399] ? retint_kernel+0x10/0x10 [ 48.405283] ? alloc_pages_current+0x48/0x1e0 [ 48.409776] alloc_pages_current+0xb6/0x1e0 [ 48.414085] relay_open_buf.part.10+0x22e/0x9b0 [ 48.418754] relay_open+0x57a/0xa40 [ 48.422370] ? relay_open_buf.part.10+0x9b0/0x9b0 [ 48.427200] ? __debugfs_create_file+0x2cf/0x3d0 [ 48.431947] ? debugfs_create_file+0x57/0x70 [ 48.436347] do_blk_trace_setup+0x4a4/0xcd0 [ 48.440657] ? blk_tracer_print_line+0x40/0x40 [ 48.445221] ? __might_sleep+0x95/0x190 [ 48.449187] ? kasan_check_write+0x14/0x20 [ 48.453401] ? _copy_from_user+0x99/0x110 [ 48.457534] __blk_trace_setup+0xb6/0x140 [ 48.461662] ? do_blk_trace_setup+0xcd0/0xcd0 [ 48.466177] blk_trace_setup+0x4d/0x70 [ 48.470055] sg_ioctl+0xc71/0x2d90 [ 48.473581] ? lock_release+0xa40/0xa40 [ 48.477533] ? __handle_mm_fault+0x80e/0x3ce0 [ 48.482016] ? sg_new_write.isra.19+0x830/0x830 [ 48.486667] ? __pmd_alloc+0x4e0/0x4e0 [ 48.490541] ? is_bpf_text_address+0xa4/0x120 [ 48.495028] ? avc_has_extended_perms+0x7fa/0x12c0 [ 48.499955] ? avc_ss_reset+0x110/0x110 [ 48.503927] ? __do_page_fault+0x5f7/0xc90 [ 48.508187] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 48.514051] ? up_read+0x1a/0x40 [ 48.517401] ? rcu_note_context_switch+0x710/0x710 [ 48.522324] ? sg_new_write.isra.19+0x830/0x830 [ 48.526977] do_vfs_ioctl+0x1b1/0x1520 [ 48.530845] ? _cond_resched+0x14/0x30 [ 48.534721] ? ioctl_preallocate+0x2b0/0x2b0 [ 48.539115] ? selinux_capable+0x40/0x40 [ 48.543161] ? putname+0xf3/0x130 [ 48.546603] ? do_sys_open+0x320/0x6d0 [ 48.550487] ? security_file_ioctl+0x89/0xb0 [ 48.554882] SyS_ioctl+0x8f/0xc0 [ 48.558241] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 48.562975] RIP: 0033:0x443eb9 [ 48.566140] RSP: 002b:00007ffebe60ab78 EFLAGS: 00000206 ORIG_RAX: 0000000000000010 [ 48.573830] RAX: ffffffffffffffda RBX: 00000000004002e0 RCX: 0000000000443eb9 [ 48.581076] RDX: 000000002098f000 RSI: 00000000c0481273 RDI: 0000000000000003 [ 48.588323] RBP: 00000000006ce018 R08: 0000000000000000 R09: 0000000000000000 [ 48.595568] R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000401ba0 [ 48.602818] R13: 0000000000401c30 R14: 0000000000000000 R15: 0000000000000000 [ 48.610155] Mem-Info: [ 48.613348] active_anon:2487 inactive_anon:33 isolated_anon:0 [ 48.613348] active_file:8 inactive_file:11 isolated_file:0 [ 48.613348] unevictable:0 dirty:0 writeback:3 unstable:0 [ 48.613348] slab_reclaimable:7184 slab_unreclaimable:83958 [ 48.613348] mapped:20 shmem:40 pagetables:274 bounce:0 [ 48.613348] free:24191 free_pcp:3 free_cma:0 [ 48.645301] Node 0 active_anon:9948kB inactive_anon:132kB active_file:32kB inactive_file:44kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:80kB dirty:0kB writeback:12kB shmem:160kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 2048kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes [ 48.672190] Node 0 DMA free:15908kB min:160kB low:200kB high:240kB 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 [ 48.698333] lowmem_reserve[]: 0 2882 6395 6395 [ 48.702941] Node 0 DMA32 free:44024kB min:30384kB low:37980kB high:45576kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:3129332kB managed:2954056kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB [ 48.730105] lowmem_reserve[]: 0 0 3512 3512 [ 48.734449] Node 0 Normal free:36832kB min:37032kB low:46288kB high:55544kB active_anon:9948kB inactive_anon:132kB active_file:0kB inactive_file:248kB unevictable:0kB writepending:12kB present:4718592kB managed:3597124kB mlocked:0kB kernel_stack:2688kB pagetables:1096kB bounce:0kB free_pcp:12kB local_pcp:0kB free_cma:0kB [ 48.764312] lowmem_reserve[]: 0 0 0 0 [ 48.768197] 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 [ 48.781854] Node 0 DMA32: 2*4kB (M) 2*8kB (UE) 4*16kB (UME) 3*32kB (UME) 3*64kB (ME) 5*128kB (UME) 4*256kB (ME) 4*512kB (ME) 3*1024kB (ME) 4*2048kB (UME) 7*4096kB (M) = 44024kB [ 48.797891] Node 0 Normal: 457*4kB (UME) 373*8kB (UME) 276*16kB (UME) 174*32kB (UM) 92*64kB (UM) 38*128kB (UM) 22*256kB (UM) 10*512kB (M) 1*1024kB (U) 0*2048kB 0*4096kB = 37324kB [ 48.814110] Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB [ 48.822691] 73 total pagecache pages [ 48.826417] 0 pages in swap cache [ 48.829881] Swap cache stats: add 0, delete 0, find 0/0 [ 48.835252] Free swap = 0kB [ 48.838278] Total swap = 0kB [ 48.841304] 1965979 pages RAM [ 48.844410] 0 pages HighMem/MovableOnly [ 48.848385] 324207 pages reserved [ 48.851844] Unreclaimable slab info: [ 48.855565] Name Used Total [ 48.861109] hashtab_node 118KB 119KB [ 48.866472] ebitmap_node 382KB 385KB [ 48.871842] avtab_node 1012KB 1013KB [ 48.877213] TIPC 1KB 7KB [ 48.882584] SCTPv6 2KB 4KB [ 48.887956] DCCPv6 2KB 7KB [ 48.893329] DCCP 2KB 6KB [ 48.899416] fib6_nodes 0KB 4KB [ 48.904800] ip6_dst_cache 6KB 11KB [ 48.910171] RAWv6 9KB 13KB [ 48.915542] UDPv6 12KB 14KB [ 48.920914] TCPv6 2KB 5KB [ 48.926291] sd_ext_cdb 0KB 3KB [ 48.931662] scsi_sense_cache 111KB 128KB [ 48.937044] virtio_scsi_cmd 16KB 16KB [ 48.942421] sgpool-128 8KB 8KB [ 48.947837] sgpool-64 4KB 6KB [ 48.953209] sgpool-32 157KB 157KB [ 48.958600] sgpool-16 45KB 45KB [ 48.963973] sgpool-8 198KB 198KB [ 48.969350] cfq_io_cq 19KB 19KB [ 48.974722] cfq_queue 27KB 30KB [ 48.980091] mqueue_inode_cache 1KB 7KB [ 48.985546] nfs_commit_data 3KB 7KB [ 48.990901] nfs_write_data 34KB 37KB [ 48.996257] jbd2_inode 1KB 3KB [ 49.001604] ext4_system_zone 0KB 3KB [ 49.006981] bio-1 1KB 3KB [ 49.012360] rpc_buffers 17KB 19KB [ 49.017731] rpc_tasks 2KB 3KB [ 49.023103] UNIX 1590KB 1592KB [ 49.028472] tcp_bind_bucket 0KB 4KB [ 49.034641] ip_fib_trie 0KB 3KB [ 49.040034] ip_fib_alias 0KB 3KB [ 49.045415] ip_dst_cache 4KB 7KB [ 49.050786] RAW 5KB 7KB [ 49.056164] UDP 29KB 39KB [ 49.061532] request_sock_TCP 0KB 3KB [ 49.066887] TCP 7KB 7KB [ 49.072252] hugetlbfs_inode_cache 1KB 7KB [ 49.078648] eventpoll_pwq 10KB 15KB [ 49.084032] eventpoll_epi 19KB 23KB [ 49.089390] inotify_inode_mark 4KB 7KB [ 49.094842] request_queue 33KB 67KB [ 49.100211] blkdev_ioc 27KB 27KB [ 49.105586] bio-0 352KB 352KB [ 49.110939] biovec-(1<<(21-12)) 470KB 470KB [ 49.116478] biovec-64 252KB 252KB [ 49.121846] biovec-16 45KB 45KB [ 49.127218] bio_integrity_payload 0KB 4KB [ 49.132918] khugepaged_mm_slot 0KB 3KB [ 49.138371] uid_cache 1KB 3KB [ 49.143738] dmaengine-unmap-2 0KB 3KB [ 49.149107] audit_buffer 0KB 3KB [ 49.154466] skbuff_fclone_cache 125KB 127KB [ 49.160005] skbuff_head_cache 1820KB 1833KB [ 49.165390] configfs_dir_cache 0KB 4KB [ 49.171646] file_lock_cache 150KB 150KB [ 49.177040] file_lock_ctx 1KB 3KB [ 49.182764] fsnotify_mark_connector 2KB 3KB [ 49.188655] shmem_inode_cache 876KB 879KB [ 49.194031] task_delay_info 273KB 395KB [ 49.199406] sigqueue 312KB 318KB [ 49.204787] kernfs_node_cache 1835KB 1838KB [ 49.210145] mnt_cache 14KB 16KB [ 49.215512] filp 8246KB 8280KB [ 49.220889] names_cache 115481KB 115519KB [ 49.226263] avc_node 37KB 39KB [ 49.231631] selinux_file_security 410KB 418KB [ 49.237331] selinux_inode_security 1894KB 1896KB [ 49.243131] key_jar 3KB 7KB [ 49.248503] nsproxy 0KB 3KB [ 49.253857] vm_area_struct 16930KB 16942KB [ 49.259225] mm_struct 3605KB 3658KB [ 49.264593] fs_cache 363KB 496KB [ 49.269951] files_cache 1359KB 1616KB [ 49.275314] signal_cache 2177KB 2601KB [ 49.280685] sighand_cache 194KB 263KB [ 49.286047] task_struct 9303KB 9340KB [ 49.291410] cred_jar 2202KB 2220KB [ 49.296781] anon_vma_chain 6907KB 6914KB [ 49.302135] anon_vma 132KB 265KB [ 49.308296] pid 190KB 292KB [ 49.313670] Acpi-Operand 106KB 170KB [ 49.319045] Acpi-Namespace 19KB 23KB [ 49.324418] numa_policy 0KB 3KB [ 49.329791] trace_event_file 144KB 147KB [ 49.335161] ftrace_event_field 254KB 255KB [ 49.340618] pool_workqueue 10KB 12KB [ 49.345987] page->ptl 2695KB 2699KB [ 49.351395] kmalloc-1048576 2052KB 2052KB [ 49.356752] kmalloc-262144 1032KB 1032KB [ 49.362116] kmalloc-131072 650KB 650KB [ 49.367485] kmalloc-65536 264KB 264KB [ 49.372853] kmalloc-32768 462KB 462KB [ 49.378217] kmalloc-16384 148KB 148KB [ 49.383579] kmalloc-8192 371KB 371KB [ 49.388954] kmalloc-4096 8372KB 8410KB [ 49.394324] kmalloc-2048 2998KB 3002KB [ 49.399694] kmalloc-1024 3756KB 3756KB [ 49.405063] kmalloc-512 3068KB 3281KB [ 49.410428] kmalloc-256 1544KB 1833KB [ 49.415810] kmalloc-128 398KB 507KB [ 49.421168] kmalloc-96 334KB 388KB [ 49.426542] kmalloc-64 706KB 804KB [ 49.431912] kmalloc-32 1828KB 2177KB [ 49.437282] kmalloc-192 152KB 200KB [ 49.443431] kmem_cache 96KB 101KB [ 49.455412] [ pid ] uid tgid total_vm rss pgtables_bytes swapents oom_score_adj name [ 49.464048] [ 1602] 0 1602 5381 183 90112 0 -1000 udevd [ 49.472208] [ 2988] 0 2988 30649 190 122880 0 0 rsyslogd [ 49.480623] [ 3040] 0 3040 3736 45 69632 0 0 mcstransd [ 49.489128] [ 3042] 0 3042 4725 51 81920 0 0 cron [ 49.497194] [ 3090] 0 3090 12490 153 135168 0 -1000 sshd [ 49.505260] [ 3114] 0 3114 3694 42 73728 0 0 getty [ 49.513412] [ 3115] 0 3115 3694 41 73728 0 0 getty [ 49.521563] [ 3116] 0 3116 3694 40 77824 0 0 getty [ 49.529719] [ 3117] 0 3117 3694 41 77824 0 0 getty [ 49.537873] [ 3118] 0 3118 3694 40 73728 0 0 getty [ 49.546043] [ 3119] 0 3119 3694 40 77824 0 0 getty [ 49.554195] [ 3120] 0 3120 3649 40 77824 0 0 getty [ 49.562347] [ 3124] 0 3124 5670 456 86016 0 -1000 udevd [ 49.570500] [ 3125] 0 3125 5670 456 86016 0 -1000 udevd [ 49.578652] [ 3145] 0 3145 17821 199 188416 0 0 sshd [ 49.586727] [ 3147] 0 3147 4383 513 40960 0 0 syzkaller480650 [ 49.595741] Out of memory: Kill process 3147 (syzkaller480650) score 0 or sacrifice child [ 49.604076] Killed process 3147 (syzkaller480650) total-vm:17532kB, anon-rss:2052kB, file-rss:0kB, shmem-rss:0kB [ 49.614941] oom_reaper: reaped process 3147 (syzkaller480650), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB [ 49.627780] rs:main Q:Reg invoked oom-killer: gfp_mask=0x14200ca(GFP_HIGHUSER_MOVABLE), nodemask=(null), order=0, oom_score_adj=0 [ 49.640270] rs:main Q:Reg cpuset=/ mems_allowed=0 [ 49.645148] CPU: 1 PID: 2989 Comm: rs:main Q:Reg Not tainted 4.15.0-rc4+ #229 [ 49.649195] syzkaller480650: page allocation failure: order:0, mode:0x14000c0(GFP_KERNEL), nodemask=(null) [ 49.649210] syzkaller480650 cpuset=/ mems_allowed=0 [ 49.667139] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.676465] Call Trace: [ 49.679034] dump_stack+0x194/0x257 [ 49.682644] ? arch_local_irq_restore+0x53/0x53 [ 49.687291] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 49.692467] dump_header+0x28c/0xe1e [ 49.696169] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 49.701340] ? pagefault_out_of_memory+0x152/0x152 [ 49.706245] ? check_noncircular+0x20/0x20 [ 49.710460] ? print_irqtrace_events+0x270/0x270 [ 49.715198] ? __lock_acquire+0x664/0x3e00 [ 49.719415] ? check_noncircular+0x20/0x20 [ 49.723634] ? print_irqtrace_events+0x270/0x270 [ 49.728377] ? check_noncircular+0x20/0x20 [ 49.732587] ? task_will_free_mem+0x252/0xaa0 [ 49.737065] ? print_irqtrace_events+0x270/0x270 [ 49.741808] ? ___ratelimit+0x30d/0x630 [ 49.745759] ? lock_downgrade+0x980/0x980 [ 49.749890] ? lock_release+0xa40/0xa40 [ 49.753847] ? mark_held_locks+0xaf/0x100 [ 49.757971] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 49.763052] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 49.768047] ? trace_hardirqs_on+0xd/0x10 [ 49.772177] ? ___ratelimit+0x95/0x630 [ 49.776043] ? idr_get_free_cmn+0xfd0/0xfd0 [ 49.780337] ? check_noncircular+0x20/0x20 [ 49.784543] ? find_held_lock+0x138/0x1d0 [ 49.788682] oom_kill_process+0x8b5/0x14a0 [ 49.792899] ? has_ns_capability_noaudit+0x163/0x2a0 [ 49.797979] ? check_noncircular+0x20/0x20 [ 49.802194] ? oom_evaluate_task+0x480/0x480 [ 49.806595] ? security_capable_noaudit+0x8b/0xc0 [ 49.811419] ? find_held_lock+0x35/0x1d0 [ 49.815459] ? check_noncircular+0x20/0x20 [ 49.819673] ? oom_unkillable_task+0x394/0x4c0 [ 49.824231] ? lock_downgrade+0x980/0x980 [ 49.828359] ? lock_release+0xa40/0xa40 [ 49.832306] ? do_try_to_free_pages+0xc53/0x1020 [ 49.837043] ? find_lock_task_mm+0x460/0x460 [ 49.841433] ? find_held_lock+0x35/0x1d0 [ 49.845483] ? out_of_memory+0xb3a/0x1220 [ 49.849606] ? lock_downgrade+0x980/0x980 [ 49.853735] ? lock_release+0xa40/0xa40 [ 49.857683] ? lock_acquire+0x1d5/0x580 [ 49.861632] ? __alloc_pages_slowpath+0xf8b/0x2d00 [ 49.866546] ? oom_evaluate_task+0x284/0x480 [ 49.870939] out_of_memory+0x86d/0x1220 [ 49.874902] ? oom_killer_disable+0x310/0x310 [ 49.879370] ? mutex_trylock+0x23a/0x2d0 [ 49.883406] ? __lock_is_held+0xb6/0x140 [ 49.887445] ? __ww_mutex_wakeup_for_backoff+0x240/0x240 [ 49.892886] __alloc_pages_slowpath+0x1d1b/0x2d00 [ 49.897715] ? trace_hardirqs_on+0xd/0x10 [ 49.901863] ? warn_alloc+0x2b0/0x2b0 [ 49.905638] ? lock_downgrade+0x980/0x980 [ 49.909774] ? __lock_is_held+0xb6/0x140 [ 49.913831] ? find_get_entry+0x53c/0x9e0 [ 49.917984] ? __lock_acquire+0x664/0x3e00 [ 49.922239] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 49.928114] ? __might_sleep+0x95/0x190 [ 49.932070] __alloc_pages_nodemask+0x9fb/0xd80 [ 49.936722] ? __alloc_pages_slowpath+0x2d00/0x2d00 [ 49.941716] ? add_to_page_cache_lru+0x510/0x510 [ 49.946456] ? check_noncircular+0x20/0x20 [ 49.950663] ? check_noncircular+0x20/0x20 [ 49.954880] ? radix_tree_next_chunk+0x5e8/0xdf0 [ 49.959641] alloc_pages_current+0xb6/0x1e0 [ 49.963945] __page_cache_alloc+0x334/0x500 [ 49.968243] ? rcu_read_lock_held+0xa9/0xc0 [ 49.972544] ? trace_event_raw_event_file_check_and_advance_wb_err+0x490/0x490 [ 49.979894] filemap_fault+0xefc/0x1c20 [ 49.983848] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 49.989032] ? __lock_page_or_retry+0x4f0/0x4f0 [ 49.993690] ? filemap_map_pages+0x942/0x15d0 [ 49.998179] ? find_get_entries_tag+0xeb0/0xeb0 [ 50.002829] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 50.007993] ? check_noncircular+0x20/0x20 [ 50.012204] ? page_add_file_rmap+0x5b7/0xa90 [ 50.016680] ? print_irqtrace_events+0x270/0x270 [ 50.021411] ? print_irqtrace_events+0x270/0x270 [ 50.026171] ? lock_acquire+0x1d5/0x580 [ 50.030119] ? lock_acquire+0x1d5/0x580 [ 50.034074] ? ext4_filemap_fault+0x7a/0xad [ 50.038373] ? __lock_acquire+0x664/0x3e00 [ 50.042588] ? lock_release+0xa40/0xa40 [ 50.046536] ? trace_event_raw_event_sched_switch+0x800/0x800 [ 50.052400] ? rcu_note_context_switch+0x710/0x710 [ 50.057311] ? __might_sleep+0x95/0x190 [ 50.061352] ? down_read+0x96/0x150 [ 50.064955] ? ext4_filemap_fault+0x7a/0xad [ 50.069253] ? __down_interruptible+0x6b0/0x6b0 [ 50.073913] ext4_filemap_fault+0x82/0xad [ 50.078040] __do_fault+0xeb/0x30f [ 50.081558] ? pte_offset_kernel+0xc7/0xc7 [ 50.085764] ? lock_release+0xa40/0xa40 [ 50.089713] ? compat_start_thread+0x80/0x80 [ 50.094101] ? do_raw_spin_trylock+0x190/0x190 [ 50.098661] ? _raw_spin_unlock_irq+0x27/0x70 [ 50.103137] ? check_noncircular+0x20/0x20 [ 50.107355] __handle_mm_fault+0x1d8f/0x3ce0 [ 50.111746] ? __pmd_alloc+0x4e0/0x4e0 [ 50.115618] ? find_held_lock+0x35/0x1d0 [ 50.119663] ? handle_mm_fault+0x248/0x8d0 [ 50.123877] ? lock_downgrade+0x980/0x980 [ 50.128038] handle_mm_fault+0x334/0x8d0 [ 50.132074] ? down_read_trylock+0xdb/0x170 [ 50.136367] ? __do_page_fault+0x32d/0xc90 [ 50.140577] ? __handle_mm_fault+0x3ce0/0x3ce0 [ 50.145135] ? vmacache_find+0x5f/0x280 [ 50.149093] ? find_vma+0x30/0x150 [ 50.152611] __do_page_fault+0x5c9/0xc90 [ 50.156645] ? kernel_read+0x120/0x120 [ 50.160518] ? mm_fault_error+0x2c0/0x2c0 [ 50.164643] ? avc_policy_seqno+0x9/0x20 [ 50.168689] ? exit_to_usermode_loop+0x8c/0x310 [ 50.173338] do_page_fault+0xee/0x720 [ 50.177111] ? trace_hardirqs_off+0xd/0x10 [ 50.181325] ? __do_page_fault+0xc90/0xc90 [ 50.185537] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 50.191048] ? vfs_write+0x224/0x510 [ 50.194750] ? retint_user+0x18/0x18 [ 50.198440] ? page_fault+0x36/0x60 [ 50.202040] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 50.206863] ? page_fault+0x36/0x60 [ 50.210468] page_fault+0x4c/0x60 [ 50.213893] RIP: 0033:0x4397b5 [ 50.217054] RSP: 002b:00007f0d321c9580 EFLAGS: 00010246 [ 50.222391] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 383178302b746964 [ 50.229635] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007f0d321c95c0 [ 50.236877] RBP: 0000000000000008 R08: 00000000008abf50 R09: 0000000000000bad [ 50.244121] R10: 6c6962617061635f R11: 75616f6e5f797469 R12: 00000000008e5b80 [ 50.251362] R13: 000000000000001f R14: 0000000000000000 R15: 00000000008cb400 Connection to ci-upstream-kasan-gce-6 closed by remote host. 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