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BUG: KCSAN: data-race in tomoyo_domain_quota_is_ok / tomoyo_merge_path_acl

read to 0xffff888092eb619a of 2 bytes by task 7888 on cpu 0:
 tomoyo_domain_quota_is_ok+0x29c/0x2b0 security/tomoyo/util.c:1039
 tomoyo_supervisor+0x22b/0xd20 security/tomoyo/common.c:2087
 tomoyo_audit_path_log security/tomoyo/file.c:168 [inline]
 tomoyo_path_permission security/tomoyo/file.c:587 [inline]
 tomoyo_path_permission+0x121/0x160 security/tomoyo/file.c:573
 tomoyo_path_perm+0x352/0x390 security/tomoyo/file.c:838
 tomoyo_path_rmdir+0x63/0x90 security/tomoyo/tomoyo.c:189
 security_path_rmdir+0xa3/0xd0 security/security.c:1037
 do_rmdir+0x227/0x300 fs/namei.c:3941
 __do_sys_unlinkat fs/namei.c:4107 [inline]
 __se_sys_unlinkat fs/namei.c:4101 [inline]
 __x64_sys_unlinkat+0xb6/0xd0 fs/namei.c:4101
 do_syscall_64+0xcc/0x3a0 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

write to 0xffff888092eb619a of 2 bytes by task 7893 on cpu 1:
 tomoyo_merge_path_acl+0x6c/0xa0 security/tomoyo/file.c:372
 tomoyo_update_domain+0x323/0x450 security/tomoyo/domain.c:129
 tomoyo_update_path_acl security/tomoyo/file.c:398 [inline]
 tomoyo_write_file+0x34e/0x580 security/tomoyo/file.c:1022
 tomoyo_write_domain2+0xad/0x120 security/tomoyo/common.c:1150
 tomoyo_add_entry security/tomoyo/common.c:2040 [inline]
 tomoyo_supervisor+0xad7/0xd20 security/tomoyo/common.c:2101
 tomoyo_audit_path_log security/tomoyo/file.c:168 [inline]
 tomoyo_path_permission security/tomoyo/file.c:587 [inline]
 tomoyo_path_permission+0x121/0x160 security/tomoyo/file.c:573
 tomoyo_path_perm+0x352/0x390 security/tomoyo/file.c:838
 tomoyo_path_rmdir+0x63/0x90 security/tomoyo/tomoyo.c:189
 security_path_rmdir+0xa3/0xd0 security/security.c:1037
 do_rmdir+0x227/0x300 fs/namei.c:3941
 __do_sys_unlinkat fs/namei.c:4107 [inline]
 __se_sys_unlinkat fs/namei.c:4101 [inline]
 __x64_sys_unlinkat+0xb6/0xd0 fs/namei.c:4101
 do_syscall_64+0xcc/0x3a0 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 7893 Comm: syz-fuzzer Not tainted 5.5.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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