blkid: Corrupted page table at address 401300
PGD 18c4b6067 P4D 18c4b6067 
==================================================================
BUG: KASAN: stack-out-of-bounds in pud_val arch/x86/include/asm/paravirt.h:534 [inline]
BUG: KASAN: stack-out-of-bounds in dump_pagetable+0x8f8/0x970 arch/x86/mm/fault.c:543
Read of size 8 at addr ffff88018c4b6000 by task blkid/3056
PANIC: double fault, error_code: 0x0

CPU: 1 PID: 3049 Comm: syz-executor7 Not tainted 4.18.0-rc3+ #48
CPU: 0 PID: 3056 Comm: blkid Not tainted 4.18.0-rc3+ #48
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__lock_acquire+0x2e/0x5020 kernel/locking/lockdep.c:3294
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Code: 
Call Trace:
41 
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1c9/0x2b4 lib/dump_stack.c:113
57 
41 
89 
cf 41 
56 41 
 print_address_description+0x6c/0x20b mm/kasan/report.c:256
55 
49 
 kasan_report_error mm/kasan/report.c:354 [inline]
 kasan_report.cold.7+0x242/0x2fe mm/kasan/report.c:412
89 
 __asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:433
fd 
 pud_val arch/x86/include/asm/paravirt.h:534 [inline]
 dump_pagetable+0x8f8/0x970 arch/x86/mm/fault.c:543
41 54 
45 89 
cc 53 
65 4c 
8b 34 
25 40 
ee 
01 
00 
48 
83 
 pgtable_bad+0x4a/0x130 arch/x86/mm/fault.c:692
e4 f0 
 __do_page_fault+0x87b/0xe50 arch/x86/mm/fault.c:1270
48 
81 ec 
60 03 
 do_page_fault+0xf6/0x8c0 arch/x86/mm/fault.c:1471
00 
00 
48 8b 
45 10 
<89> 
94 
24 80 
00 00 
00 
48 
ba 00 
00 
 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1160
00 
RIP: 0033:0x7fe102a3582a
00 
Code: 
00 
a9 
fc 
20 
ff 
00 
df 
16 
48 
00 
89 
00 
84 
00 
24 98 
83 
RSP: 0018:ffff880189ffff10 EFLAGS: 00010082
c8 
ff 
RAX: 0000000000000000 RBX: 1ffff1003140005f RCX: 0000000000000002
c3 
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff88f92620
RBP: ffff88018a0002a0 R08: 0000000000000000 R09: 0000000000000000
90 
R10: ffff88018db0f1b8 R11: ffff8801daf236b3 R12: 0000000000000000
90 
R13: ffffffff88f92620 R14: ffff8801ca3f0340 R15: 0000000000000002
90 
FS:  00007fe5ad6d6700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000
90 
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
90 
CR2: ffff880189ffff08 CR3: 00000001a9f3e000 CR4: 00000000001406e0
66 
DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000
0f 
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
6e