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BUG: KCSAN: data-race in tomoyo_supervisor / tomoyo_supervisor

read to 0xffffffff86146f24 of 4 bytes by task 13550 on cpu 0:
 tomoyo_update_stat security/tomoyo/common.c:2340 [inline]
 tomoyo_supervisor+0x1b0/0xd20 security/tomoyo/common.c:2077
 tomoyo_audit_path_number_log security/tomoyo/file.c:235 [inline]
 tomoyo_path_number_perm+0x323/0x3c0 security/tomoyo/file.c:734
 tomoyo_path_mkdir+0x6e/0xa0 security/tomoyo/tomoyo.c:173
 security_path_mkdir+0xb8/0xf0 security/security.c:1029
 do_mkdirat+0xef/0x1f0 fs/namei.c:3828
 __do_sys_mkdir fs/namei.c:3846 [inline]
 __se_sys_mkdir fs/namei.c:3844 [inline]
 __x64_sys_mkdir+0x40/0x50 fs/namei.c:3844
 do_syscall_64+0xcc/0x370 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

write to 0xffffffff86146f24 of 4 bytes by task 13547 on cpu 1:
 tomoyo_update_stat security/tomoyo/common.c:2340 [inline]
 tomoyo_supervisor+0x1c9/0xd20 security/tomoyo/common.c:2077
 tomoyo_audit_path_number_log security/tomoyo/file.c:235 [inline]
 tomoyo_path_number_perm+0x323/0x3c0 security/tomoyo/file.c:734
 tomoyo_path_mkdir+0x6e/0xa0 security/tomoyo/tomoyo.c:173
 security_path_mkdir+0xb8/0xf0 security/security.c:1029
 do_mkdirat+0xef/0x1f0 fs/namei.c:3828
 __do_sys_mkdir fs/namei.c:3846 [inline]
 __se_sys_mkdir fs/namei.c:3844 [inline]
 __x64_sys_mkdir+0x40/0x50 fs/namei.c:3844
 do_syscall_64+0xcc/0x370 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 13547 Comm: syz-executor.0 Not tainted 5.4.0-rc3+ #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
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