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: 8388 Comm: ifupdown-hotplu Not tainted 5.12.0-rc7-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:880 [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 2a 52 7b 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:ffffc9000167fd90 EFLAGS: 00010282

RAX: ffffea0003ffff80 RBX: ffff888011ff4e00 RCX: 0000000000000000
RDX: ffff88801fcdb880 RSI: ffff8880ffffea00 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000002e
R10: ffffffff813371ca R11: 000000000000003f R12: dffffc0000000000
R13: ffffc9000167fdc8 R14: ffffea0000000000 R15: ffff8880ffffea00
FS:  00007fc886f5f480(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffea0003ffff88 CR3: 000000001d331000 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+0x7f/0x90 mm/kasan/common.c:437
 kasan_slab_alloc include/linux/kasan.h:223 [inline]
 slab_post_alloc_hook mm/slab.h:516 [inline]
 slab_alloc_node mm/slub.c:2907 [inline]
 slab_alloc mm/slub.c:2915 [inline]
 kmem_cache_alloc+0x155/0x370 mm/slub.c:2920
 prepare_creds+0x3b/0x730 kernel/cred.c:258
 access_override_creds fs/open.c:355 [inline]
 do_faccessat+0x3f4/0x850 fs/open.c:419
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fc886a7cb3a
Code: 41 55 41 54 55 53 48 81 ec 98 00 00 00 f7 c1 ff fc ff ff 0f 85 4f 01 00 00 85 c9 75 33 48 63 ff 48 63 d2 b8 0d 01 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 ea 00 00 00 89 c3 48 81 c4 98 00 00 00 89
RSP: 002b:00007ffc26ba8c70 EFLAGS: 00000246
 ORIG_RAX: 000000000000010d
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc886a7cb3a
RDX: 0000000000000001 RSI: 00005627a4d74238 RDI: ffffffffffffff9c
RBP: 00005627a4d74238 R08: 00005627a3215320 R09: 0000000000000001
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00005627a4d74280 R15: 00005627a3215ce4
Modules linked in:

CR2: ffffea0003ffff88
---[ end trace d5498e3531afad6a ]---
RIP: 0010:compound_head include/linux/page-flags.h:184 [inline]
RIP: 0010:virt_to_head_page include/linux/mm.h:880 [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 2a 52 7b 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:ffffc9000167fd90 EFLAGS: 00010282

RAX: ffffea0003ffff80 RBX: ffff888011ff4e00 RCX: 0000000000000000
RDX: ffff88801fcdb880 RSI: ffff8880ffffea00 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000002e
R10: ffffffff813371ca R11: 000000000000003f R12: dffffc0000000000
R13: ffffc9000167fdc8 R14: ffffea0000000000 R15: ffff8880ffffea00
FS:  00007fc886f5f480(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffea0003ffff88 CR3: 000000001d331000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400