BUG: unable to handle page fault for address: ffffea0003ffff88
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 13fff8067 P4D 13fff8067 
PUD 13fff7067 PMD 0 

Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 8451 Comm: ifupdown-hotplu Not tainted 5.12.0-rc8-next-20210423-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:compound_head include/linux/page-flags.h:184 [inline]
RIP: 0010:virt_to_head_page include/linux/mm.h:899 [inline]
RIP: 0010:qlink_to_cache mm/kasan/quarantine.c:120 [inline]
RIP: 0010:qlist_free_all+0x85/0xc0 mm/kasan/quarantine.c:162
Code: 85 ff 74 3b 4c 89 fe 48 85 ed 48 89 ef 75 cb 48 89 f7 48 89 34 24 e8 4a 2e 7a ff 48 8b 34 24 48 c1 e8 0c 48 c1 e0 06 4c 01 f0 <48> 8b 50 08 48 8d 4a ff 83 e2 01 48 0f 45 c1 48 8b 78 18 eb 9b 49
RSP: 0018:ffffc900016df980 EFLAGS: 00010282

RAX: ffffea0003ffff80 RBX: ffff88801a398000 RCX: 0000000000000000
RDX: ffff888023ff1c80 RSI: ffff8880ffffea00 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000002e
R10: ffffffff81342fea R11: 000000000000003f R12: dffffc0000000000
R13: ffffc900016df9b8 R14: ffffea0000000000 R15: ffff8880ffffea00
FS:  00007f2268bd9480(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffea0003ffff88 CR3: 00000000151cb000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 kasan_quarantine_reduce+0x180/0x200 mm/kasan/quarantine.c:272
 __kasan_slab_alloc+0x8e/0xa0 mm/kasan/common.c:438
 kasan_slab_alloc include/linux/kasan.h:236 [inline]
 slab_post_alloc_hook mm/slab.h:527 [inline]
 slab_alloc_node mm/slub.c:2924 [inline]
 slab_alloc mm/slub.c:2932 [inline]
 __kmalloc+0x1f7/0x330 mm/slub.c:4083
 kmalloc include/linux/slab.h:563 [inline]
 tomoyo_realpath_from_path+0xc3/0x620 security/tomoyo/realpath.c:254
 tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
 tomoyo_path_perm+0x21b/0x400 security/tomoyo/file.c:822
 security_inode_getattr+0xcf/0x140 security/security.c:1332
 vfs_getattr fs/stat.c:139 [inline]
 vfs_statx+0x164/0x390 fs/stat.c:207
 vfs_fstatat fs/stat.c:225 [inline]
 vfs_stat include/linux/fs.h:3380 [inline]
 __do_sys_newstat+0x91/0x110 fs/stat.c:367
 do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f22686f6295
Code: 00 00 00 e8 5d 01 00 00 48 83 c4 18 c3 0f 1f 84 00 00 00 00 00 83 ff 01 48 89 f0 77 30 48 89 c7 48 89 d6 b8 04 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 03 f3 c3 90 48 8b 15 d1 db 2b 00 f7 d8 64 89
RSP: 002b:00007ffea4914d48 EFLAGS: 00000246
 ORIG_RAX: 0000000000000004
RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f22686f6295
RDX: 00007ffea4914d50 RSI: 00007ffea4914d50 RDI: 00005576d61d6480
RBP: 00005576d61d6480 R08: 00005576d4c15320 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00005576d61d64d0 R15: 00005576d4c15ce4
Modules linked in:

CR2: ffffea0003ffff88
---[ end trace 27ceb2ce26dbfe4a ]---
RIP: 0010:compound_head include/linux/page-flags.h:184 [inline]
RIP: 0010:virt_to_head_page include/linux/mm.h:899 [inline]
RIP: 0010:qlink_to_cache mm/kasan/quarantine.c:120 [inline]
RIP: 0010:qlist_free_all+0x85/0xc0 mm/kasan/quarantine.c:162
Code: 85 ff 74 3b 4c 89 fe 48 85 ed 48 89 ef 75 cb 48 89 f7 48 89 34 24 e8 4a 2e 7a ff 48 8b 34 24 48 c1 e8 0c 48 c1 e0 06 4c 01 f0 <48> 8b 50 08 48 8d 4a ff 83 e2 01 48 0f 45 c1 48 8b 78 18 eb 9b 49
RSP: 0018:ffffc900016df980 EFLAGS: 00010282

RAX: ffffea0003ffff80 RBX: ffff88801a398000 RCX: 0000000000000000
RDX: ffff888023ff1c80 RSI: ffff8880ffffea00 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000002e
R10: ffffffff81342fea R11: 000000000000003f R12: dffffc0000000000
R13: ffffc900016df9b8 R14: ffffea0000000000 R15: ffff8880ffffea00
FS:  00007f2268bd9480(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffea0003ffff88 CR3: 00000000151cb000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400