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BUG: KCSAN: data-race in selinux_inode_permission / selinux_inode_permission

read-write to 0xffff888119a27aa0 of 4 bytes by task 25366 on cpu 0:
 task_avdcache_update security/selinux/hooks.c:3179 [inline]
 selinux_inode_permission+0x493/0x620 security/selinux/hooks.c:3233
 security_inode_permission+0x6d/0xb0 security/security.c:2324
 inode_permission+0x106/0x310 fs/namei.c:601
 may_lookup fs/namei.c:1860 [inline]
 link_path_walk+0x63c/0x900 fs/namei.c:2454
 path_lookupat+0x63/0x2a0 fs/namei.c:2662
 do_o_path+0x45/0x130 fs/namei.c:4026
 path_openat+0x1df9/0x2170 fs/namei.c:4048
 do_filp_open+0x109/0x230 fs/namei.c:4082
 do_sys_openat2+0xa6/0x110 fs/open.c:1437
 do_sys_open fs/open.c:1452 [inline]
 __do_sys_openat fs/open.c:1468 [inline]
 __se_sys_openat fs/open.c:1463 [inline]
 __x64_sys_openat+0xf2/0x120 fs/open.c:1463
 x64_sys_call+0x1af/0x2fb0 arch/x86/include/generated/asm/syscalls_64.h:258
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd2/0x200 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

write to 0xffff888119a27aa0 of 4 bytes by task 25365 on cpu 1:
 task_avdcache_search security/selinux/hooks.c:3146 [inline]
 selinux_inode_permission+0x31b/0x620 security/selinux/hooks.c:3216
 security_inode_permission+0x6d/0xb0 security/security.c:2324
 inode_permission+0x106/0x310 fs/namei.c:601
 may_create+0x196/0x1f0 fs/namei.c:3239
 vfs_mkdir+0x5a/0x340 fs/namei.c:4358
 do_mkdirat+0x132/0x3f0 fs/namei.c:4408
 __do_sys_mkdirat fs/namei.c:4425 [inline]
 __se_sys_mkdirat fs/namei.c:4423 [inline]
 __x64_sys_mkdirat+0x4c/0x60 fs/namei.c:4423
 x64_sys_call+0x2be0/0x2fb0 arch/x86/include/generated/asm/syscalls_64.h:259
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd2/0x200 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

value changed: 0x00000001 -> 0x00000002

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 UID: 0 PID: 25365 Comm: syz.4.7454 Tainted: G        W           6.16.0-rc6-syzkaller-00279-gbf61759db409 #0 PREEMPT(voluntary) 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
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