0 pages cma reserved Out of memory (oom_kill_allocating_task): Kill process 31824 (in:imklog) score 0 or sacrifice child Killed process 31820 (rsyslogd) total-vm:254332kB, anon-rss:540kB, file-rss:4kB, shmem-rss:0kB oom_reaper: reaped process 31820 (rsyslogd), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1 kworker/u4:5 invoked oom-killer: gfp_mask=0x15080c0(GFP_KERNEL_ACCOUNT|__GFP_ZERO), nodemask=(null), order=3, oom_score_adj=0 kworker/u4:5 cpuset=/ mems_allowed=0-1 CPU: 0 PID: 8937 Comm: kworker/u4:5 Not tainted 4.14.307-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 Workqueue: events_unbound call_usermodehelper_exec_work Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 dump_header+0x178/0x82f mm/oom_kill.c:424 oom_kill_process.cold+0x10/0xa40 mm/oom_kill.c:863 out_of_memory+0x2dc/0x1190 mm/oom_kill.c:1086 __alloc_pages_may_oom mm/page_alloc.c:3351 [inline] __alloc_pages_slowpath mm/page_alloc.c:4070 [inline] __alloc_pages_nodemask+0x25a9/0x2900 mm/page_alloc.c:4239 __alloc_pages include/linux/gfp.h:484 [inline] __alloc_pages_node include/linux/gfp.h:497 [inline] alloc_pages_node include/linux/gfp.h:511 [inline] alloc_thread_stack_node kernel/fork.c:236 [inline] dup_task_struct kernel/fork.c:519 [inline] copy_process.part.0+0x265/0x71c0 kernel/fork.c:1631 copy_process kernel/fork.c:1606 [inline] _do_fork+0x17a/0xcb0 kernel/fork.c:2092 kernel_thread+0x2f/0x40 kernel/fork.c:2154 call_usermodehelper_exec_work kernel/umh.c:192 [inline] call_usermodehelper_exec_work+0x1ac/0x2a0 kernel/umh.c:178 process_one_work+0x793/0x14a0 kernel/workqueue.c:2117 worker_thread+0x5cc/0xff0 kernel/workqueue.c:2251 kthread+0x30d/0x420 kernel/kthread.c:232 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:406 Mem-Info: active_anon:26332 inactive_anon:4798 isolated_anon:0 active_file:0 inactive_file:10 isolated_file:0 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:21652 slab_unreclaimable:106681 mapped:19737 shmem:5473 pagetables:609 bounce:0 free:18482 free_pcp:37 free_cma:0 Node 0 active_anon:105324kB inactive_anon:19192kB active_file:32kB inactive_file:56kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:78948kB dirty:0kB writeback:0kB shmem:21892kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 14336kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes Node 1 active_anon:4kB inactive_anon:0kB active_file:0kB inactive_file:0kB 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? yes Node 0 DMA free:10956kB min:204kB low:252kB high:300kB 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 lowmem_reserve[]: 0 2717 2718 2718 2718 Node 0 DMA32 free:36184kB min:36196kB low:45244kB high:54292kB active_anon:105260kB inactive_anon:19192kB active_file:76kB inactive_file:40kB unevictable:0kB writepending:0kB present:3129332kB managed:2787976kB mlocked:0kB kernel_stack:7360kB pagetables:2312kB bounce:0kB free_pcp:160kB local_pcp:152kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 0 Node 0 Normal free:0kB min:4kB low:4kB high:4kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:1048576kB managed:468kB 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:26912kB min:53696kB low:67120kB high:80544kB active_anon:4kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:4194304kB managed:4128256kB 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 0 DMA: 1*4kB (U) 1*8kB (U) 0*16kB 0*32kB 1*64kB (U) 1*128kB (U) 0*256kB 1*512kB (U) 0*1024kB 1*2048kB (M) 2*4096kB (M) = 10956kB Node 0 DMA32: 1358*4kB (UMEH) 1418*8kB (UMEH) 370*16kB (UMH) 148*32kB (UM) 53*64kB (UM) 16*128kB (U) 5*256kB (UM) 2*512kB (U) 1*1024kB (U) 0*2048kB 0*4096kB = 36200kB Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB Bluetooth: hci5 command 0x040f tx timeout Node 1 Normal: 2*4kB (ME) 3*8kB (UME) 2*16kB (ME) 3*32kB (UME) 2*64kB (ME) 2*128kB (ME) 3*256kB (UME) 2*512kB (UE) 2*1024kB (ME) 3*2048kB (M) 4*4096kB (M) = 26912kB 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 5502 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 2097051 pages RAM 0 pages HighMem/MovableOnly 363899 pages reserved 0 pages cma reserved Out of memory: Kill process 7981 (syz-fuzzer) score 12 or sacrifice child Killed process 7996 (syz-executor.2) total-vm:48512kB, anon-rss:2288kB, file-rss:0kB, shmem-rss:0kB oom_reaper: reaped process 7996 (syz-executor.2), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB kworker/u4:2 invoked oom-killer: gfp_mask=0x14040c0(GFP_KERNEL|__GFP_COMP), nodemask=(null), order=1, oom_score_adj=0 kworker/u4:2 cpuset=/ mems_allowed=0-1 CPU: 1 PID: 34 Comm: kworker/u4:2 Not tainted 4.14.307-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 Workqueue: events_unbound call_usermodehelper_exec_work Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 dump_header+0x178/0x82f mm/oom_kill.c:424 oom_kill_process.cold+0x10/0xa40 mm/oom_kill.c:863 out_of_memory+0x2dc/0x1190 mm/oom_kill.c:1086 __alloc_pages_may_oom mm/page_alloc.c:3351 [inline] __alloc_pages_slowpath mm/page_alloc.c:4070 [inline] __alloc_pages_nodemask+0x25a9/0x2900 mm/page_alloc.c:4239 __alloc_pages include/linux/gfp.h:484 [inline] __alloc_pages_node include/linux/gfp.h:497 [inline] kmem_getpages mm/slab.c:1419 [inline] cache_grow_begin+0x91/0x700 mm/slab.c:2676 fallback_alloc+0x207/0x2c0 mm/slab.c:3217 slab_alloc_node mm/slab.c:3325 [inline] kmem_cache_alloc_node+0xe3/0x410 mm/slab.c:3640 alloc_task_struct_node kernel/fork.c:156 [inline] dup_task_struct kernel/fork.c:515 [inline] copy_process.part.0+0x17d3/0x71c0 kernel/fork.c:1631 copy_process kernel/fork.c:1606 [inline] _do_fork+0x17a/0xcb0 kernel/fork.c:2092 kernel_thread+0x2f/0x40 kernel/fork.c:2154 call_usermodehelper_exec_work kernel/umh.c:192 [inline] call_usermodehelper_exec_work+0x1ac/0x2a0 kernel/umh.c:178 process_one_work+0x793/0x14a0 kernel/workqueue.c:2117 worker_thread+0x5cc/0xff0 kernel/workqueue.c:2251 kthread+0x30d/0x420 kernel/kthread.c:232 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:406 Mem-Info: active_anon:25191 inactive_anon:4798 isolated_anon:0 active_file:901 inactive_file:1248 isolated_file:32 unevictable:0 dirty:0 writeback:0 unstable:0 slab_reclaimable:21662 slab_unreclaimable:106425 mapped:17868 shmem:5473 pagetables:552 bounce:0 free:219568 free_pcp:387 free_cma:0 Node 0 active_anon:101060kB inactive_anon:19192kB active_file:3616kB inactive_file:3244kB unevictable:0kB isolated(anon):0kB isolated(file):128kB mapped:70172kB dirty:0kB writeback:0kB shmem:21892kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 10240kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no Node 1 active_anon:104kB inactive_anon:0kB active_file:0kB inactive_file:0kB 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? yes Node 0 DMA free:10956kB min:204kB low:252kB high:300kB 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 lowmem_reserve[]: 0 2717 2718 2718 2718 Node 0 DMA32 free:53308kB min:36196kB low:45244kB high:54292kB active_anon:100660kB inactive_anon:19192kB active_file:1020kB inactive_file:428kB unevictable:0kB writepending:0kB present:3129332kB managed:2787976kB mlocked:0kB kernel_stack:7424kB pagetables:2208kB bounce:0kB free_pcp:1088kB local_pcp:428kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 0 Node 0 Normal free:0kB min:4kB low:4kB high:4kB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:1048576kB managed:468kB 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:1101072kB min:53696kB low:67120kB high:80544kB active_anon:104kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:4194304kB managed:4128256kB mlocked:0kB kernel_stack:32kB pagetables:0kB bounce:0kB free_pcp:744kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 0 Node 0 DMA: 1*4kB (U) 1*8kB (U) 0*16kB 0*32kB 1*64kB (U) 1*128kB (U) 0*256kB 1*512kB (U) 0*1024kB 1*2048kB (M) 2*4096kB (M) = 10956kB Node 0 DMA32: 1047*4kB (UMEH) 1107*8kB (UMEH) 466*16kB (UMH) 182*32kB (UMH) 82*64kB (UM) 38*128kB (UM) 18*256kB (UM) 7*512kB (U) 3*1024kB (U) 2*2048kB (M) 0*4096kB = 51796kB Node 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB Node 1 Normal: 3*4kB (UME) 4*8kB (UME) 2*16kB (ME) 4*32kB (UE) 4*64kB (UME) 2*128kB (UE) 5*256kB (UME) 4*512kB (UE) 3*1024kB (UME) 4*2048kB (UM) 289*4096kB (UM) = 1199052kB 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 5969 total pagecache pages 0 pages in swap cache Swap cache stats: add 0, delete 0, find 0/0 Free swap = 0kB Total swap = 0kB 2097051 pages RAM 0 pages HighMem/MovableOnly 363899 pages reserved 0 pages cma reserved Out of memory: Kill process 7981 (syz-fuzzer) score 12 or sacrifice child Killed process 7995 (syz-executor.1) total-vm:48512kB, anon-rss:440kB, file-rss:0kB, shmem-rss:0kB oom_reaper: reaped process 7995 (syz-executor.1), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB Bluetooth: hci5 command 0x0419 tx timeout