RAX: ffffffffffffffda RBX: 0000000000000014 RCX: 00000000200002c0
RDX: 0000000000001000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000296 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
BUG: unable to handle kernel paging request at fffffffffffffff4
PGD 8e6d067 P4D 8e6d067 PUD 8e6f067 PMD 0 
Oops: 0000 [#1] SMP KASAN
CPU: 1 PID: 32200 Comm: syz-executor6 Not tainted 4.17.0+ #114
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:fast_dput fs/dcache.c:716 [inline]
RIP: 0010:dput.part.26+0x117/0x780 fs/dcache.c:835
Code: 3f 48 b2 ff 45 84 ff 0f 84 e2 03 00 00 e8 61 47 b2 ff 48 89 d8 48 c1 e8 03 42 0f b6 04 28 84 c0 74 08 3c 03 0f 8e 04 05 00 00 <44> 8b 3b 48 8d 83 80 00 00 00 31 ff 48 89 85 70 ff ff ff 41 83 e7 
RSP: 0018:ffff8801b535f8d8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: fffffffffffffff4 RCX: ffffc90006cc3000
RDX: 0000000000040000 RSI: ffffffff81c7f38f RDI: 0000000000000001
RBP: ffff8801b535f970 R08: ffff8801c584e640 R09: ffffed003b5e46d6
R10: ffffed003b5e46d6 R11: ffff8801daf236b3 R12: 1ffff10036a6bf1d
R13: dffffc0000000000 R14: ffffed0036a6bf21 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8801daf00000(0063) knlGS:00000000f5fb0b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: fffffffffffffff4 CR3: 00000001667ab000 CR4: 00000000001406e0
DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 dput+0x15/0x20 fs/dcache.c:830
 proc_fill_cache+0x230/0x660 fs/proc/base.c:1909
 proc_pid_readdir+0x35b/0x7bf fs/proc/base.c:3262
 proc_root_readdir+0xa4/0xd0 fs/proc/root.c:172
 iterate_dir+0x4b0/0x5d0 fs/readdir.c:51
 ksys_getdents64+0x21c/0x430 fs/readdir.c:314
 __do_sys_getdents64 fs/readdir.c:333 [inline]
 __se_sys_getdents64 fs/readdir.c:330 [inline]
 __ia32_sys_getdents64+0x72/0xb0 fs/readdir.c:330
 do_syscall_32_irqs_on arch/x86/entry/common.c:323 [inline]
 do_fast_syscall_32+0x345/0xf9b arch/x86/entry/common.c:394
 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139
RIP: 0023:0xf7fb4cb9
Code: 55 08 8b 88 64 cd ff ff 8b 98 68 cd ff ff 89 c8 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 1c 24 c3 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 
RSP: 002b:00000000f5fb00ac EFLAGS: 00000282 ORIG_RAX: 00000000000000dc
RAX: ffffffffffffffda RBX: 0000000000000014 RCX: 00000000200002c0
RDX: 0000000000001000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000296 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
Dumping ftrace buffer:
   (ftrace buffer empty)
CR2: fffffffffffffff4
---[ end trace 156d7647b3f7d016 ]---
RIP: 0010:fast_dput fs/dcache.c:716 [inline]
RIP: 0010:dput.part.26+0x117/0x780 fs/dcache.c:835
Code: 3f 48 b2 ff 45 84 ff 0f 84 e2 03 00 00 e8 61 47 b2 ff 48 89 d8 48 c1 e8 03 42 0f b6 04 28 84 c0 74 08 3c 03 0f 8e 04 05 00 00 <44> 8b 3b 48 8d 83 80 00 00 00 31 ff 48 89 85 70 ff ff ff 41 83 e7 
RSP: 0018:ffff8801b535f8d8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: fffffffffffffff4 RCX: ffffc90006cc3000
RDX: 0000000000040000 RSI: ffffffff81c7f38f RDI: 0000000000000001
RBP: ffff8801b535f970 R08: ffff8801c584e640 R09: ffffed003b5e46d6
R10: ffffed003b5e46d6 R11: ffff8801daf236b3 R12: 1ffff10036a6bf1d
R13: dffffc0000000000 R14: ffffed0036a6bf21 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8801daf00000(0063) knlGS:00000000f5fb0b40
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: fffffffffffffff4 CR3: 00000001667ab000 CR4: 00000000001406e0
DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600