anon_vma 3855KB 3863KB pid 374KB 752KB Acpi-Operand 156KB 198KB Acpi-ParseExt 7KB 11KB Acpi-Parse 41KB 47KB unregister_netdevice: waiting for gretap0 to become free. Usage count = 2 Acpi-State 52KB 63KB Acpi-Namespace 21KB 27KB numa_policy 0KB 3KB debug_objects_cache 46851KB 47218KB trace_event_file 305KB 306KB ftrace_event_field 416KB 417KB pool_workqueue 6827KB 6836KB page->ptl 2382KB 2391KB kmalloc-2097152 2050KB 2050KB kmalloc-524288 2056KB 2056KB kmalloc-262144 1290KB 1290KB kmalloc-131072 1690KB 1690KB kmalloc-65536 594KB 924KB kmalloc-32768 225258KB 225423KB kmalloc-16384 112134KB 112249KB kmalloc-8192 141306KB 141347KB kmalloc-4096 790967KB 791027KB kmalloc-2048 567621KB 568114KB kmalloc-1024 201926KB 201938KB kmalloc-512 186178KB 191617KB kmalloc-256 123263KB 123982KB kmalloc-128 53242KB 53317KB kmalloc-96 27132KB 27784KB kmalloc-64 47416KB 49232KB kmalloc-32 50568KB 52132KB kmalloc-192 78310KB 78380KB kmem_cache 168KB 172KB Out of memory: Kill process 11043 (syz-executor663) score 999 or sacrifice child Killed process 11043 (syz-executor663) total-vm:17904kB, anon-rss:96kB, file-rss:0kB, shmem-rss:0kB kworker/u4:1 invoked oom-killer: gfp_mask=0x7080c0(GFP_KERNEL_ACCOUNT|__GFP_ZERO), nodemask=(null), order=3, oom_score_adj=0 kworker/u4:1 cpuset=/ mems_allowed=0-1 CPU: 0 PID: 23 Comm: kworker/u4:1 Not tainted 4.19.132-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events_unbound call_usermodehelper_exec_work Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2fe lib/dump_stack.c:118 dump_header+0x15d/0xc3f mm/oom_kill.c:441 oom_kill_process.cold+0x10/0x692 mm/oom_kill.c:954 out_of_memory mm/oom_kill.c:1130 [inline] out_of_memory+0x34d/0x1390 mm/oom_kill.c:1062 __alloc_pages_may_oom mm/page_alloc.c:3547 [inline] __alloc_pages_slowpath mm/page_alloc.c:4249 [inline] __alloc_pages_nodemask+0x23a2/0x2890 mm/page_alloc.c:4413 __alloc_pages include/linux/gfp.h:496 [inline] __alloc_pages_node include/linux/gfp.h:509 [inline] alloc_pages_node include/linux/gfp.h:523 [inline] alloc_thread_stack_node kernel/fork.c:240 [inline] dup_task_struct kernel/fork.c:811 [inline] copy_process.part.0+0x3d6/0x7f40 kernel/fork.c:1737 copy_process kernel/fork.c:1694 [inline] _do_fork+0x22f/0xf30 kernel/fork.c:2207 kernel_thread+0x2f/0x40 kernel/fork.c:2266 call_usermodehelper_exec_work kernel/umh.c:190 [inline] call_usermodehelper_exec_work+0x16d/0x260 kernel/umh.c:176 process_one_work+0x864/0x1570 kernel/workqueue.c:2155 worker_thread+0x64c/0x1130 kernel/workqueue.c:2298 kthread+0x30b/0x410 kernel/kthread.c:246 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 Mem-Info: active_anon:55625 inactive_anon:4054 isolated_anon:0 active_file:25 inactive_file:7 isolated_file:0 unevictable:0 dirty:3 writeback:0 unstable:0 slab_reclaimable:60113 slab_unreclaimable:1328458 mapped:893 shmem:4233 pagetables:16834 bounce:0 free:28137 free_pcp:315 free_cma:0 Node 0 active_anon:86160kB inactive_anon:16216kB active_file:400kB inactive_file:1172kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:4472kB dirty:12kB writeback:0kB shmem:16932kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no Node 1 active_anon:136340kB inactive_anon:0kB active_file:0kB inactive_file:12kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:0kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no Node 0 DMA free:10228kB min:220kB low:272kB high:324kB active_anon:200kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB kernel_stack:96kB pagetables:60kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 2531 2533 2533 2533 Node 0 DMA32 free:48404kB min:36048kB low:45060kB high:54072kB active_anon:85960kB inactive_anon:16216kB active_file:564kB inactive_file:480kB unevictable:0kB writepending:12kB present:3129332kB managed:2595392kB mlocked:0kB kernel_stack:41504kB pagetables:24868kB bounce:0kB free_pcp:528kB local_pcp:412kB free_cma:0kB lowmem_reserve[]: 0 0 1 1 1 Node 0 Normal free:4kB min:20kB low:24kB high:28kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:786432kB managed:1652kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 0 Node 1 Normal free:53768kB min:53816kB low:67268kB high:80720kB active_anon:136340kB inactive_anon:0kB active_file:4kB inactive_file:8kB unevictable:0kB writepending:0kB present:3932160kB managed:3870168kB mlocked:0kB kernel_stack:70112kB pagetables:42408kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 0 Node 0 DMA: 3*4kB (ME) 5*8kB (UEH) 2*16kB (UM) 3*32kB (UME) 1*64kB (E) 0*128kB 3*256kB (UME) 2*512kB (ME) 2*1024kB (ME) 1*2048kB (E) 1*4096kB (M) = 10228kB Node 0 DMA32: 3354*4kB (UME) 1103*8kB (UME) 428*16kB (UME) 170*32kB (UME) 80*64kB (UME) 35*128kB (ME) 20*256kB (UME) 1*512kB (U) 0*1024kB 0*2048kB 0*4096kB = 49760kB Node 0 Normal: 1*4kB (H) 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 4kB Node 1 Normal: 2502*4kB (UME) 118*8kB (UME) 4*16kB (ME) 6*32kB (UME) 7*64kB (UM) 3*128kB (UME) 3*256kB (UME) 2*512kB (ME) 3*1024kB (UME) 2*2048kB (UE) 8*4096kB (M) = 53768kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 0 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB 4374 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 1965979 pages RAM 0 pages HighMem/MovableOnly 345199 pages reserved 0 pages cma reserved Unreclaimable slab info: Name Used Total pid_3 632KB 637KB pid_2 517KB 580KB batadv_tl_cache 0KB 4KB TIPC 4865KB 4873KB SCTPv6 7039KB 7041KB DCCPv6 8204KB 8211KB DCCP 7816KB 7818KB RXRPC 5546KB 5551KB rxrpc_call_jar 38391KB 38398KB bridge_fdb_cache 1KB 3KB fib6_nodes 26KB 28KB ip6_dst_cache 14KB 41KB RAWv6 33276KB 33280KB UDPv6 6175KB 6180KB TCPv6 9981KB 10028KB nf_conntrack 0KB 3KB sd_ext_cdb 0KB 7KB scsi_sense_cache 1056KB 1064KB virtio_scsi_cmd 16KB 16KB sgpool-128 8KB 8KB sgpool-64 4KB 12KB sgpool-32 2KB 15KB sgpool-16 1KB 7KB sgpool-8 0KB 7KB mqueue_inode_cache 5116KB 5122KB bio_post_read_ctx 14KB 15KB bio-2 14KB 15KB jfs_mp 7KB 7KB cifs_small_rq 15KB 16KB cifs_request 67KB 67KB cifs_mpx_ids 0KB 7KB nfs_commit_data 3KB 14KB nfs_write_data 34KB 44KB ext4_system_zone 1KB 7KB bio-1 1KB 7KB pid_namespace 1195KB 1202KB rpc_buffers 17KB 25KB rpc_tasks 2KB 7KB UNIX 83KB 105KB tcp_bind_bucket 422KB 432KB ip_fib_trie 4KB 7KB ip_fib_alias 19KB 23KB ip_dst_cache 1KB 8KB RAW 19624KB 19629KB UDP 5551KB 5551KB TCP 269KB 308KB hugetlbfs_inode_cache 3KB 7KB fscache_cookie_jar 1KB 11KB eventpoll_pwq 5KB 27KB eventpoll_epi 10KB 39KB inotify_inode_mark 5KB 11KB request_queue 164KB 164KB blkdev_requests 1KB 3KB blkdev_ioc 16KB 19KB bio-0 1145KB 1147KB biovec-max 2169KB 2169KB biovec-64 820KB 826KB biovec-16 152KB 153KB bio_integrity_payload 1KB 8KB khugepaged_mm_slot 0KB 3KB user_namespace 2525KB 2530KB uid_cache 0KB 4KB dmaengine-unmap-256 2KB 6KB dmaengine-unmap-128 1KB 3KB dmaengine-unmap-16 0KB 4KB dmaengine-unmap-2 0KB 3KB audit_buffer 0KB 3KB skbuff_fclone_cache 127KB 225KB skbuff_head_cache 4482KB 6112KB configfs_dir_cache 1KB 7KB file_lock_cache 12KB 15KB file_lock_ctx 8KB 11KB fsnotify_mark_connector 1KB 3KB net_namespace 29554KB 29615KB shmem_inode_cache 6815KB 6835KB task_delay_info 1312KB 1846KB taskstats 53KB 137KB proc_dir_entry 161991KB 162112KB pde_opener 0KB 7KB seq_file 17KB 23KB sigqueue 0KB 7KB kernfs_node_cache 595571KB 595665KB mnt_cache 57879KB 57908KB filp 3112KB 7406KB names_cache 27841KB 27841KB iint_cache 26KB 67KB hashtab_node 420KB 421KB ebitmap_node 1158KB 1161KB avtab_node 4995KB 4996KB avc_node 53KB 162KB selinux_file_security 155KB 523KB selinux_inode_security 16649KB 17328KB key_jar 4KB 11KB uts_namespace 0KB 3KB nsproxy 292KB 296KB vm_area_struct 12467KB 12483KB mm_struct 5575KB 5577KB fs_cache 1716KB 2376KB files_cache 6034KB 7552KB signal_cache 9509KB 12154KB sighand_cache 8306KB 8331KB task_struct 41889KB 41951KB cred_jar 3285KB 5180KB anon_vma_chain 5956KB 5965KB anon_vma 3853KB 3859KB pid 379KB 752KB Acpi-Operand 156KB 198KB Acpi-ParseExt 7KB 11KB Acpi-Parse 41KB 47KB Acpi-State 52KB 63KB Acpi-Namespace 21KB 27KB numa_policy 0KB 3KB debug_objects_cache 46845KB 47218KB trace_event_file 305KB 306KB ftrace_event_field 416KB 417KB pool_workqueue 6827KB 6836KB page->ptl 2381KB 2391KB kmalloc-2097152 2050KB 2050KB kmalloc-524288 2056KB 2056KB kmalloc-262144 1290KB 1290KB kmalloc-131072 1690KB 1690KB kmalloc-65536 594KB 924KB kmalloc-32768 225258KB 225423KB kmalloc-16384 112134KB 112216KB kmalloc-8192 141306KB 141347KB kmalloc-4096 790610KB 790670KB kmalloc-2048 567517KB 568069KB kmalloc-1024 201953KB 201954KB kmalloc-512 186103KB 191583KB kmalloc-256 123240KB 123982KB kmalloc-128 53224KB 53317KB kmalloc-96 27125KB 27784KB kmalloc-64 47401KB 49232KB kmalloc-32 50562KB 52132KB kmalloc-192 78262KB 78380KB kmem_cache 168KB 172KB Out of memory: Kill process 11480 (syz-executor663) score 999 or sacrifice child Killed process 11480 (syz-executor663) total-vm:17904kB, anon-rss:96kB, file-rss:0kB, shmem-rss:0kB in:imklog invoked oom-killer: gfp_mask=0x6040c0(GFP_KERNEL|__GFP_COMP), nodemask=(null), order=1, oom_score_adj=0 in:imklog cpuset=/ mems_allowed=0-1 CPU: 1 PID: 6136 Comm: in:imklog Not tainted 4.19.132-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2fe lib/dump_stack.c:118 dump_header+0x15d/0xc3f mm/oom_kill.c:441 oom_kill_process.cold+0x10/0x692 mm/oom_kill.c:954 out_of_memory mm/oom_kill.c:1130 [inline] out_of_memory+0x34d/0x1390 mm/oom_kill.c:1062 __alloc_pages_may_oom mm/page_alloc.c:3547 [inline] __alloc_pages_slowpath mm/page_alloc.c:4249 [inline] __alloc_pages_nodemask+0x23a2/0x2890 mm/page_alloc.c:4413 __alloc_pages include/linux/gfp.h:496 [inline] __alloc_pages_node include/linux/gfp.h:509 [inline] kmem_getpages mm/slab.c:1412 [inline] cache_grow_begin+0xa4/0x8a0 mm/slab.c:2682 fallback_alloc+0x213/0x2e0 mm/slab.c:3224 __do_cache_alloc mm/slab.c:3361 [inline] slab_alloc mm/slab.c:3389 [inline] kmem_cache_alloc_trace+0x1f1/0x380 mm/slab.c:3623 kmalloc include/linux/slab.h:515 [inline] syslog_print kernel/printk/printk.c:1309 [inline] do_syslog.part.0+0x24f/0x1510 kernel/printk/printk.c:1477 do_syslog+0x49/0x60 kernel/printk/printk.c:1458 kmsg_read+0x8a/0xb0 fs/proc/kmsg.c:40 proc_reg_read+0x1bd/0x2d0 fs/proc/inode.c:231 __vfs_read+0xf7/0x750 fs/read_write.c:416 vfs_read+0x194/0x3c0 fs/read_write.c:452 ksys_read+0x12b/0x2a0 fs/read_write.c:579 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fa2d10ec22d Code: Bad RIP value. RSP: 002b:00007fa2cea88580 EFLAGS: 00000293 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa2d10ec22d RDX: 0000000000001fa0 RSI: 00007fa2cea88da0 RDI: 0000000000000004 RBP: 000056184ab269d0 R08: 0000000000000000 R09: 0000000000000000 R10: 2ce33e6c02ce33e7 R11: 0000000000000293 R12: 00007fa2cea88da0 R13: 0000000000001fa0 R14: 0000000000001f9f R15: 00007fa2cea88e69