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: 0 PID: 8433 Comm: systemd-udevd 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:ffffc9000168f9f0 EFLAGS: 00010282

RAX: ffffea0003ffff80 RBX: ffff88802b358000 RCX: 0000000000000000
RDX: ffff888025055580 RSI: ffff8880ffffea00 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000002e
R10: ffffffff81342fea R11: 000000000000003f R12: dffffc0000000000
R13: ffffc9000168fa28 R14: ffffea0000000000 R15: ffff8880ffffea00
FS:  00007f08b80558c0(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffea0003ffff88 CR3: 000000001655f000 CR4: 00000000001506f0
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_realpath_nofollow+0xc8/0xe0 security/tomoyo/realpath.c:309
 tomoyo_find_next_domain+0x280/0x1f80 security/tomoyo/domain.c:727
 tomoyo_bprm_check_security security/tomoyo/tomoyo.c:101 [inline]
 tomoyo_bprm_check_security+0x121/0x1a0 security/tomoyo/tomoyo.c:91
 security_bprm_check+0x45/0xa0 security/security.c:865
 search_binary_handler fs/exec.c:1708 [inline]
 exec_binprm fs/exec.c:1761 [inline]
 bprm_execve fs/exec.c:1830 [inline]
 bprm_execve+0x732/0x19b0 fs/exec.c:1792
 do_execveat_common+0x621/0x7c0 fs/exec.c:1919
 do_execve fs/exec.c:1987 [inline]
 __do_sys_execve fs/exec.c:2063 [inline]
 __se_sys_execve fs/exec.c:2058 [inline]
 __x64_sys_execve+0x8f/0xc0 fs/exec.c:2058
 do_syscall_64+0x3a/0xb0 arch/x86/entry/common.c:47
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f08b6ea4647
Code: ff 76 e0 f7 d8 64 41 89 01 eb d8 0f 1f 84 00 00 00 00 00 f7 d8 64 41 89 01 eb d7 0f 1f 84 00 00 00 00 00 b8 3b 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 21 08 2e 00 f7 d8 64 89 01 48
RSP: 002b:00007ffcb5a3afd8 EFLAGS: 00000207
 ORIG_RAX: 000000000000003b
RAX: ffffffffffffffda RBX: 00007ffcb5a3b520 RCX: 00007f08b6ea4647
RDX: 0000559f86f50f30 RSI: 00007ffcb5a3b520 RDI: 00007ffcb5a3b920
RBP: 000000000000000f R08: 000000000000fefc R09: 0000000000000070
R10: 0000000000000008 R11: 0000000000000207 R12: 00007ffcb5a3b0a0
R13: 0000000000000012 R14: 0000559f86f50f30 R15: 00007ffcb5a3caf0
Modules linked in:

CR2: ffffea0003ffff88
---[ end trace 62a7d19a3414bab7 ]---
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:ffffc9000168f9f0 EFLAGS: 00010282

RAX: ffffea0003ffff80 RBX: ffff88802b358000 RCX: 0000000000000000
RDX: ffff888025055580 RSI: ffff8880ffffea00 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: 000000000000002e
R10: ffffffff81342fea R11: 000000000000003f R12: dffffc0000000000
R13: ffffc9000168fa28 R14: ffffea0000000000 R15: ffff8880ffffea00
FS:  00007f08b80558c0(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffea0003ffff88 CR3: 000000001655f000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400