kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 6680 Comm: syz-executor5 Not tainted 4.20.0-rc7-next-20181224 #1
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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:ffff88808971f208 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff8880a0167148 RCX: ffffc90005aeb000
RDX: 0000000000000037 RSI: ffffffff81c8242a RDI: 00000000000001b8
RBP: ffff88808971f230 R08: 1ffff11010b39934 R09: ffffed1010b39935
R10: ffffed1010b39934 R11: ffff8880859cc9a3 R12: 0000000000000000
R13: ffff8880a01671e8 R14: 00000000000050a3 R15: 0000000002000000
FS:  00007f54bcae4700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000008ce47000 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
 traverse fs/seq_file.c:113 [inline]
 traverse+0x1d6/0x760 fs/seq_file.c:91
 seq_read+0x8f8/0x1130 fs/seq_file.c:188
 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:00007f54bcae3c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000457ec9
RDX: 0000000020b58000 RSI: 0000000000000003 RDI: 0000000000000003
RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000ffff R11: 0000000000000246 R12: 00007f54bcae46d4
R13: 00000000004c4b6b R14: 00000000004d8278 R15: 00000000ffffffff
Modules linked in:
kobject: 'kvm' (00000000b72683c1): kobject_uevent_env
kobject: 'kvm' (00000000b72683c1): fill_kobj_path: path = '/devices/virtual/misc/kvm'
kobject: 'kvm' (00000000b72683c1): kobject_uevent_env
---[ end trace 5ea85da2dfe468b8 ]---
kobject: 'kvm' (00000000b72683c1): fill_kobj_path: path = '/devices/virtual/misc/kvm'
RIP: 0010:transparent_hugepage_enabled+0x8c/0x5e0 mm/huge_memory.c:69
kobject: 'batman_adv' (000000009245548c): 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: 'kvm' (00000000b72683c1): kobject_uevent_env
kobject: 'batman_adv' (000000009245548c): kobject_uevent_env: filter function caused the event to drop!
kobject: 'kvm' (00000000b72683c1): fill_kobj_path: path = '/devices/virtual/misc/kvm'
kobject: 'batman_adv' (000000009245548c): kobject_cleanup, parent           (null)
RSP: 0018:ffff88808971f208 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff8880a0167148 RCX: ffffc90005aeb000
kobject: 'batman_adv' (000000009245548c): calling ktype release
kobject: 'loop3' (0000000090ee25e4): kobject_uevent_env
kobject: 'loop3' (0000000090ee25e4): fill_kobj_path: path = '/devices/virtual/block/loop3'
kobject: 'kvm' (00000000b72683c1): kobject_uevent_env
kobject: (000000009245548c): dynamic_kobj_release
RDX: 0000000000000037 RSI: ffffffff81c8242a RDI: 00000000000001b8
kobject: 'kvm' (00000000b72683c1): fill_kobj_path: path = '/devices/virtual/misc/kvm'
kobject: 'batman_adv': free name
RBP: ffff88808971f230 R08: 1ffff11010b39934 R09: ffffed1010b39935
kobject: 'rx-0' (0000000050b00dc3): kobject_cleanup, parent 0000000020f205f7
R10: ffffed1010b39934 R11: ffff8880859cc9a3 R12: 0000000000000000
kobject: 'rx-0' (0000000050b00dc3): auto cleanup 'remove' event
kobject: 'kvm' (00000000b72683c1): kobject_uevent_env
kobject: 'rx-0' (0000000050b00dc3): kobject_uevent_env
kobject: 'kvm' (00000000b72683c1): fill_kobj_path: path = '/devices/virtual/misc/kvm'
kobject: 'rx-0' (0000000050b00dc3): kobject_uevent_env: uevent_suppress caused the event to drop!
R13: ffff8880a01671e8 R14: 00000000000050a3 R15: 0000000002000000
kobject: 'rx-0' (0000000050b00dc3): auto cleanup kobject_del
FS:  00007f54bcae4700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
kobject: 'rx-0' (0000000050b00dc3): calling ktype release
kobject: 'kvm' (00000000b72683c1): kobject_uevent_env
kobject: 'rx-0': free name
kobject: 'kvm' (00000000b72683c1): fill_kobj_path: path = '/devices/virtual/misc/kvm'
kobject: 'tx-0' (000000001d618b22): kobject_cleanup, parent 0000000020f205f7
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
kobject: 'tx-0' (000000001d618b22): auto cleanup 'remove' event
CR2: 00007f456ca56000 CR3: 000000008ce47000 CR4: 00000000001426e0
kobject: 'tx-0' (000000001d618b22): kobject_uevent_env
kobject: 'tx-0' (000000001d618b22): kobject_uevent_env: uevent_suppress caused the event to drop!
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
kobject: 'tx-0' (000000001d618b22): auto cleanup kobject_del
kobject: 'kvm' (00000000b72683c1): kobject_uevent_env
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
kobject: 'kvm' (00000000b72683c1): fill_kobj_path: path = '/devices/virtual/misc/kvm'
kobject: 'tx-0' (000000001d618b22): calling ktype release
kobject: 'tx-0': free name