kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
cgroup: fork rejected by pids controller in /syz5
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 925 Comm: syz-executor4 Not tainted 4.20.0-rc7-next-20181224 #1
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
kobject: 'tunl0' (000000008c544bca): kobject_add_internal: parent: 'net', set: 'devices'
RIP: 0010:transparent_hugepage_enabled+0x8c/0x5e0 mm/huge_memory.c:69
Code: 80 3c 02 00 0f 85 b2 04 00 00 4c 8b a3 a0 00 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d bc 24 b8 01 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 95 04 00 00 49 8b bc 24 b8 01 00 00 e8 bd 82 e6
RSP: 0018:ffff8880984f7288 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff88808bfcfb98 RCX: ffffc9000e22d000
RDX: 0000000000000037 RSI: ffffffff81c8242a RDI: 00000000000001b8
RBP: ffff8880984f72b0 R08: 1ffff1100b27845c R09: ffffed100b27845d
R10: ffffed100b27845c R11: ffff8880593c22e3 R12: 0000000000000000
R13: ffff88808bfcfc38 R14: dffffc0000000000 R15: 0000000000000f5c
FS:  00007ff1b896d700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa64e461518 CR3: 000000008ebb0000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 show_smap+0x179/0x590 fs/proc/task_mmu.c:805
 seq_read+0x4db/0x1130 fs/seq_file.c:229
 do_loop_readv_writev fs/read_write.c:700 [inline]
 do_loop_readv_writev fs/read_write.c:687 [inline]
 do_iter_read+0x4a9/0x660 fs/read_write.c:924
 vfs_readv+0x175/0x1c0 fs/read_write.c:986
 kernel_readv fs/splice.c:362 [inline]
 default_file_splice_read+0x50c/0xac0 fs/splice.c:417
 do_splice_to+0x12a/0x190 fs/splice.c:880
 splice_direct_to_actor+0x31b/0x9d0 fs/splice.c:957
 do_splice_direct+0x2c7/0x420 fs/splice.c:1066
 do_sendfile+0x61a/0xe60 fs/read_write.c:1439
 __do_sys_sendfile64 fs/read_write.c:1494 [inline]
 __se_sys_sendfile64 fs/read_write.c:1486 [inline]
 __x64_sys_sendfile64+0x15a/0x240 fs/read_write.c:1486
 do_syscall_64+0x1a3/0x800 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x457ec9
Code: 6d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 3b b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007ff1b896cc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000457ec9
RDX: 0000000020000180 RSI: 0000000000000009 RDI: 000000000000000a
RBP: 000000000073c040 R08: 0000000000000000 R09: 0000000000000000
R10: 000000010013c93a R11: 0000000000000246 R12: 00007ff1b896d6d4
R13: 00000000004c4b6b R14: 00000000004d8278 R15: 00000000ffffffff
Modules linked in:
protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_1
protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_1
kobject: 'loop0' (000000009fd99138): kobject_uevent_env
kobject: 'bluetooth' (00000000c9c148c1): kobject_add_internal: parent: 'virtual', set: '(null)'
kobject: 'tunl0' (000000008c544bca): kobject_uevent_env
kobject: 'hci0' (00000000b9c3cba2): kobject_add_internal: parent: 'bluetooth', set: 'devices'
kobject: 'kvm' (0000000087c1a52c): kobject_uevent_env
kobject: 'loop0' (000000009fd99138): fill_kobj_path: path = '/devices/virtual/block/loop0'
kobject: 'kvm' (0000000087c1a52c): fill_kobj_path: path = '/devices/virtual/misc/kvm'
kobject: 'hci0' (00000000b9c3cba2): kobject_uevent_env
kobject: 'kvm' (0000000087c1a52c): kobject_uevent_env
kobject: 'kvm' (0000000087c1a52c): fill_kobj_path: path = '/devices/virtual/misc/kvm'
kobject: 'tunl0' (000000008c544bca): fill_kobj_path: path = '/devices/virtual/net/tunl0'
kobject: 'queues' (0000000020804988): kobject_add_internal: parent: 'tunl0', set: '<NULL>'
kobject: 'hci0' (00000000b9c3cba2): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0'
kobject: 'queues' (0000000020804988): kobject_uevent_env
kobject: 'rfkill8' (000000005e291709): kobject_add_internal: parent: 'hci0', set: 'devices'
kobject: 'queues' (0000000020804988): kobject_uevent_env: filter function caused the event to drop!
kobject: 'rfkill8' (000000005e291709): kobject_uevent_env
kobject: 'rx-0' (00000000ffae1255): kobject_add_internal: parent: 'queues', set: 'queues'
kobject: 'loop2' (00000000ee048de2): kobject_uevent_env
kobject: 'rfkill8' (000000005e291709): fill_kobj_path: path = '/devices/virtual/bluetooth/hci0/rfkill8'
kobject: 'rx-0' (00000000ffae1255): kobject_uevent_env
kobject: 'rx-0' (00000000ffae1255): fill_kobj_path: path = '/devices/virtual/net/tunl0/queues/rx-0'
kobject: 'loop2' (00000000ee048de2): fill_kobj_path: path = '/devices/virtual/block/loop2'
kobject: 'kvm' (0000000087c1a52c): kobject_uevent_env
kobject: 'kvm' (0000000087c1a52c): fill_kobj_path: path = '/devices/virtual/misc/kvm'
kobject: 'tx-0' (00000000a0b1127f): kobject_add_internal: parent: 'queues', set: 'queues'
kobject: 'tx-0' (00000000a0b1127f): kobject_uevent_env
kobject: 'tx-0' (00000000a0b1127f): fill_kobj_path: path = '/devices/virtual/net/tunl0/queues/tx-0'
kobject: 'gre0' (000000005ef386ff): kobject_add_internal: parent: 'net', set: 'devices'
---[ end trace 1c4259434491eb20 ]---
RIP: 0010:transparent_hugepage_enabled+0x8c/0x5e0 mm/huge_memory.c:69
kobject: 'gre0' (000000005ef386ff): kobject_uevent_env
Code: 80 3c 02 00 0f 85 b2 04 00 00 4c 8b a3 a0 00 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d bc 24 b8 01 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 95 04 00 00 49 8b bc 24 b8 01 00 00 e8 bd 82 e6
kobject: 'gre0' (000000005ef386ff): fill_kobj_path: path = '/devices/virtual/net/gre0'
RSP: 0018:ffff8880984f7288 EFLAGS: 00010202
kobject: 'queues' (0000000084bb884f): kobject_add_internal: parent: 'gre0', set: '<NULL>'
RAX: dffffc0000000000 RBX: ffff88808bfcfb98 RCX: ffffc9000e22d000
kobject: 'queues' (0000000084bb884f): kobject_uevent_env
RDX: 0000000000000037 RSI: ffffffff81c8242a RDI: 00000000000001b8
kobject: 'queues' (0000000084bb884f): kobject_uevent_env: filter function caused the event to drop!
RBP: ffff8880984f72b0 R08: 1ffff1100b27845c R09: ffffed100b27845d
kobject: 'rx-0' (000000006fd93c77): kobject_add_internal: parent: 'queues', set: 'queues'
R10: ffffed100b27845c R11: ffff8880593c22e3 R12: 0000000000000000
kobject: 'rx-0' (000000006fd93c77): kobject_uevent_env
R13: ffff88808bfcfc38 R14: dffffc0000000000 R15: 0000000000000f5c
kobject: 'rx-0' (000000006fd93c77): fill_kobj_path: path = '/devices/virtual/net/gre0/queues/rx-0'
FS:  00007ff1b896d700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
kobject: 'tx-0' (00000000e63b732e): kobject_add_internal: parent: 'queues', set: 'queues'
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kobject: 'tx-0' (00000000e63b732e): kobject_uevent_env
CR2: 00007fa64eaab000 CR3: 000000008ebb0000 CR4: 00000000001426f0
kobject: 'tx-0' (00000000e63b732e): fill_kobj_path: path = '/devices/virtual/net/gre0/queues/tx-0'
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
kobject: 'gretap0' (000000008a790d09): kobject_add_internal: parent: 'net', set: 'devices'
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
kobject: 'gretap0' (000000008a790d09): kobject_uevent_env