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selinux: annotate intentional data race in inode_doinit_with_dentry()

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Like other `isec->initialized == LABEL_INITIALIZED` checks annotate the
check in inode_doinit_with_dentry() with data_race to please KCSAN.

The value is rechecked next with lock held.

Reported-by: syzbot+9ab96b38b76bec93939a@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=9ab96b38b76bec93939a
Signed-off-by: Christian Göttsche <cgzones@googlemail.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
This commit is contained in:
Christian Göttsche
2026-02-02 14:48:03 +01:00
committed by Paul Moore
parent 6de23f81a5
commit 8dc51459ef
1 changed files with 2 additions and 1 deletions
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3
security/selinux/hooks.c
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@@ -1436,7 +1436,8 @@ static int inode_doinit_with_dentry(struct inode *inode, struct dentry *opt_dent
struct dentry *dentry;
int rc = 0;
if (isec->initialized == LABEL_INITIALIZED)
/* check below is racy, but we will recheck with lock held */
if (data_race(isec->initialized == LABEL_INITIALIZED))
return 0;
spin_lock(&isec->lock);