unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
ptrace attach of "/root/syz-executor.4 exec"[10632] was attempted by "/root/syz-executor.4 exec"[10626]
oom_reaper: reaped process 10742 (syz-executor.2), now anon-rss:0kB, file-rss:0kB, shmem-rss:4kB
in:imklog invoked oom-killer: gfp_mask=0x14201ca(GFP_HIGHUSER_MOVABLE|__GFP_COLD), nodemask=(null),  order=0, oom_score_adj=0
in:imklog cpuset=/ mems_allowed=0-1
CPU: 0 PID: 7739 Comm: in:imklog Not tainted 4.14.305-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
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+0xe3e/0x1190 mm/oom_kill.c:1075
syz-executor.2: 
vmalloc: allocation failure, allocated 662151168 of 1143017472 bytes
 __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
, mode:0x14080c0(GFP_KERNEL|__GFP_ZERO), nodemask=
 alloc_pages_current+0x155/0x260 mm/mempolicy.c:2107
 alloc_pages include/linux/gfp.h:520 [inline]
 __page_cache_alloc mm/filemap.c:871 [inline]
 page_cache_read mm/filemap.c:2296 [inline]
 filemap_fault+0x11a1/0x1ad0 mm/filemap.c:2480
 ext4_filemap_fault+0x84/0xb0 fs/ext4/inode.c:6310
(null)
 __do_fault+0xfa/0x380 mm/memory.c:3344
 do_read_fault mm/memory.c:3759 [inline]
 do_fault mm/memory.c:3885 [inline]
 handle_pte_fault mm/memory.c:4115 [inline]
 __handle_mm_fault+0x2497/0x4620 mm/memory.c:4239
 handle_mm_fault+0x455/0x9c0 mm/memory.c:4276
 __do_page_fault+0x549/0xad0 arch/x86/mm/fault.c:1442
syz-executor.2 cpuset=
/
 page_fault+0x45/0x50 arch/x86/entry/entry_64.S:1126
RIP: 1fa0:0x1f9f
RSP: 0000:0000559317cef9d0 EFLAGS: 7f9e48033da0
Mem-Info:
 mems_allowed=0-1
active_anon:230695 inactive_anon:5726 isolated_anon:0
 active_file:15 inactive_file:0 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:18823 slab_unreclaimable:115224
 mapped:22216 shmem:5957 pagetables:982 bounce:0
 free:13759 free_pcp:124 free_cma:0
CPU: 1 PID: 10742 Comm: syz-executor.2 Not tainted 4.14.305-syzkaller #0
Node 0 active_anon:922592kB inactive_anon:22884kB active_file:52kB inactive_file:4kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:88864kB dirty:0kB writeback:0kB shmem:23808kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 843776kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
Node 1 active_anon:188kB inactive_anon:20kB active_file:8kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:20kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Call Trace:
Node 0 
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x1b2/0x281 lib/dump_stack.c:58
 warn_alloc.cold+0x96/0x1cc mm/page_alloc.c:3255
DMA free:10968kB min:204kB low:252kB high:300kB active_anon:12kB inactive_anon:0kB active_file:8kB 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[]:
 __vmalloc_area_node+0x48a/0x680 mm/vmalloc.c:1726
 0
 __vmalloc_node_range+0xbe/0x150 mm/vmalloc.c:1767
 2717
 __vmalloc_node mm/vmalloc.c:1818 [inline]
 vmalloc_user+0x47/0xa0 mm/vmalloc.c:1888
 2718
 vb2_vmalloc_alloc+0xa6/0x2d0 drivers/media/v4l2-core/videobuf2-vmalloc.c:48
 __vb2_buf_mem_alloc drivers/media/v4l2-core/videobuf2-core.c:208 [inline]
 __vb2_queue_alloc+0x47a/0xd90 drivers/media/v4l2-core/videobuf2-core.c:361
 2718
 vb2_core_create_bufs+0x279/0x5a0 drivers/media/v4l2-core/videobuf2-core.c:818
 2718
Node 0 
 vb2_create_bufs+0x2e1/0x5b0 drivers/media/v4l2-core/videobuf2-v4l2.c:555
DMA32 free:17704kB min:36196kB low:45244kB high:54292kB active_anon:922580kB inactive_anon:22884kB active_file:48kB inactive_file:40kB unevictable:0kB writepending:0kB present:3129332kB managed:2787976kB mlocked:0kB kernel_stack:7520kB pagetables:3928kB bounce:0kB free_pcp:376kB local_pcp:96kB free_cma:0kB
lowmem_reserve[]:
 0
 vb2_ioctl_create_bufs+0x1f7/0x330 drivers/media/v4l2-core/videobuf2-v4l2.c:746
 0
 v4l_create_bufs drivers/media/v4l2-core/v4l2-ioctl.c:1906 [inline]
 v4l_create_bufs+0xa4/0x150 drivers/media/v4l2-core/v4l2-ioctl.c:1893
 0
 __video_do_ioctl+0x65b/0x6a0 drivers/media/v4l2-core/v4l2-ioctl.c:2738
 0
 video_usercopy+0xfd/0xe70 drivers/media/v4l2-core/v4l2-ioctl.c:2908
 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[]:
 v4l2_ioctl+0x1bb/0x2f0 drivers/media/v4l2-core/v4l2-dev.c:360
 0
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:500 [inline]
 do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684
 0
 0
 0
 SYSC_ioctl fs/ioctl.c:701 [inline]
 SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692
 0
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
Node 1 
 entry_SYSCALL_64_after_hwframe+0x5e/0xd3
RIP: 0033:0x7f9143e130f9
Normal free:26364kB min:53696kB low:67120kB high:80544kB active_anon:188kB inactive_anon:20kB active_file:8kB inactive_file:0kB unevictable:0kB writepending:0kB present:4194304kB managed:4128256kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:120kB local_pcp:0kB free_cma:0kB
RSP: 002b:00007f9142385168 EFLAGS: 00000246
lowmem_reserve[]:
 ORIG_RAX: 0000000000000010
 0
RAX: ffffffffffffffda RBX: 00007f9143f32f80 RCX: 00007f9143e130f9
RDX: 00000000200001c0 RSI: 00000000c100565c RDI: 0000000000000003
RBP: 00007f9143e6eae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
 0
R13: 00007ffe13203d0f R14: 00007f9142385300 R15: 0000000000022000
 0
Mem-Info:
 0
active_anon:230695 inactive_anon:5726 isolated_anon:0
 active_file:15 inactive_file:0 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:18823 slab_unreclaimable:115224
 mapped:22216 shmem:5957 pagetables:982 bounce:0
 free:13759 free_pcp:124 free_cma:0
 0
Node 0 active_anon:922592kB inactive_anon:22884kB active_file:52kB inactive_file:4kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:88864kB dirty:0kB writeback:0kB shmem:23808kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 843776kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Node 1 active_anon:188kB inactive_anon:20kB active_file:8kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:20kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Node 0 
Node 0 
DMA: 
DMA free:10968kB min:204kB low:252kB high:300kB active_anon:12kB inactive_anon:0kB active_file:8kB 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:17704kB min:36196kB low:45244kB high:54292kB active_anon:922580kB inactive_anon:22884kB active_file:48kB inactive_file:40kB unevictable:0kB writepending:0kB present:3129332kB managed:2787976kB mlocked:0kB kernel_stack:7520kB pagetables:3928kB bounce:0kB free_pcp:376kB local_pcp:280kB free_cma:0kB
lowmem_reserve[]: 0 0 0 0 0
Node 0 
2*4kB 
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:26364kB min:53696kB low:67120kB high:80544kB active_anon:188kB inactive_anon:20kB active_file:8kB inactive_file:0kB unevictable:0kB writepending:0kB present:4194304kB managed:4128256kB mlocked:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:120kB local_pcp:120kB free_cma:0kB
lowmem_reserve[]:
(M) 
 0
2*8kB 
 0
(UM) 
 0
2*16kB 
 0
(M) 
 0
1*32kB 
(U) 
Node 0 
2*64kB 
DMA: 
(UM) 2*128kB (UM) 1*256kB (M) 2*512kB (UM) 1*1024kB (M) 0*2048kB 2*4096kB (M) = 10968kB
Node 0 DMA32: 
2*4kB 
1482*4kB 
(M) 
(ME) 
2*8kB 
430*8kB 
(UM) 
(UME) 
2*16kB 
213*16kB 
(M) 
(UME) 62*32kB (UM) 20*64kB (UM) 13*128kB (UM) 
1*32kB 
0*256kB 
(U) 2*64kB (UM) 2*128kB (UM) 1*256kB (M) 2*512kB (UM) 1*1024kB (M) 0*2048kB 2*4096kB (M) = 10968kB
0*512kB 0*1024kB 0*2048kB 0*4096kB = 17704kB
Node 0 DMA32: 1482*4kB (ME) 430*8kB (UME) 213*16kB (UME) 62*32kB (UM) 20*64kB (UM) 13*128kB (UM) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 17704kB
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 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: 11*4kB (UME) 8*8kB (UME) 11*16kB (UME) 7*32kB (UME) 2*64kB (M) 3*128kB (M) 1*256kB (E) 3*512kB (UME) 1*1024kB (E) 3*2048kB (M) 4*4096kB (M) = 26364kB
Node 1 Normal: 11*4kB (UME) 8*8kB (UME) 11*16kB (UME) 7*32kB (UME) 2*64kB (M) 3*128kB (M) 1*256kB (E) 3*512kB (UME) 1*1024kB (E) 3*2048kB (M) 4*4096kB (M) = 26364kB
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=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 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=2048kB
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=1048576kB
5981 total pagecache pages
Node 1 hugepages_total=0 hugepages_free=0 hugepages_surp=0 hugepages_size=2048kB
0 pages in swap cache
Swap cache stats: add 0, delete 0, find 0/0
Free swap  = 0kB
Total swap = 0kB
2097051 pages RAM
5981 total pagecache pages
0 pages HighMem/MovableOnly
0 pages in swap cache
363899 pages reserved
0 pages cma reserved
Out of memory (oom_kill_allocating_task): Kill process 7739 (in:imklog) score 0 or sacrifice child
Killed process 7684 (rsyslogd) total-vm:254332kB, anon-rss:704kB, file-rss:0kB, shmem-rss:0kB
Swap cache stats: add 0, delete 0, find 0/0
oom_reaper: reaped process 7684 (rsyslogd), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB
Free swap  = 0kB
kworker/u4:0 invoked oom-killer: gfp_mask=0x15080c0(GFP_KERNEL_ACCOUNT|__GFP_ZERO), nodemask=(null),  order=3, oom_score_adj=0
kworker/u4:0 cpuset=/ mems_allowed=0-1
CPU: 1 PID: 5 Comm: kworker/u4:0 Not tainted 4.14.305-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023
Workqueue: events_unbound call_usermodehelper_exec_work
Call Trace:
Total swap = 0kB
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x1b2/0x281 lib/dump_stack.c:58
2097051 pages RAM
 dump_header+0x178/0x82f mm/oom_kill.c:424
0 pages HighMem/MovableOnly
363899 pages reserved
 oom_kill_process.cold+0x10/0xa40 mm/oom_kill.c:863
0 pages cma reserved
 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+0x184/0xc80 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:230447 inactive_anon:5726 isolated_anon:0
 active_file:12 inactive_file:12 isolated_file:0
 unevictable:0 dirty:0 writeback:0 unstable:0
 slab_reclaimable:18798 slab_unreclaimable:114444
 mapped:22217 shmem:5957 pagetables:944 bounce:0
 free:14839 free_pcp:0 free_cma:0
Node 0 active_anon:921600kB inactive_anon:22884kB active_file:44kB inactive_file:48kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:88868kB dirty:0kB writeback:0kB shmem:23808kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 841728kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Node 1 active_anon:188kB inactive_anon:20kB active_file:4kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:20kB shmem_thp: 0kB shmem_pmdmapped: 0kB anon_thp: 0kB writeback_tmp:0kB unstable:0kB all_unreclaimable? yes
Node 0 DMA free:10968kB min:204kB low:252kB high:300kB active_anon:12kB inactive_anon:0kB active_file:0kB inactive_file:4kB 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:22028kB min:36196kB low:45244kB high:54292kB active_anon:921588kB inactive_anon:22884kB active_file:44kB inactive_file:44kB unevictable:0kB writepending:0kB present:3129332kB managed:2787976kB mlocked:0kB kernel_stack:7392kB pagetables:3776kB bounce:0kB free_pcp:64kB local_pcp:0kB 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:26464kB min:53696kB low:67120kB high:80544kB active_anon:188kB inactive_anon:20kB active_file:4kB 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: 2*4kB (M) 2*8kB (UM) 2*16kB (M) 1*32kB (U) 2*64kB (UM) 2*128kB (UM) 1*256kB (M) 2*512kB (UM) 1*1024kB (M) 0*2048kB 2*4096kB (M) = 10968kB
Node 0 DMA32: 1557*4kB (UME) 682*8kB (UME) 273*16kB (UME) 96*32kB (UME) 23*64kB (UM) 14*128kB (UM) 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 22388kB
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: 11*4kB (UME) 7*8kB (ME) 11*16kB (UME) 7*32kB (UME) 2*64kB (M) 4*128kB (UM) 1*256kB (E) 3*512kB (UME) 1*1024kB (E) 3*2048kB (M) 4*4096kB (M) = 26484kB
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
6054 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 7968 (syz-fuzzer) score 126 or sacrifice child
Killed process 7983 (syz-executor.3) total-vm:48512kB, anon-rss:444kB, file-rss:12292kB, shmem-rss:0kB
oom_reaper: reaped process 7983 (syz-executor.3), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB