if the directory had been removed, should not set policy for it.
Signed-off-by: hongjiefang <hongjiefang@xxxxxxxxxxxx>
---
fs/crypto/policy.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/fs/crypto/policy.c b/fs/crypto/policy.c
index bd7eaf9..82900a4 100644
--- a/fs/crypto/policy.c
+++ b/fs/crypto/policy.c
@@ -77,6 +77,12 @@ int fscrypt_ioctl_set_policy(struct file *filp, const void __user *arg)
inode_lock(inode);
+ /* don't set policy for a dead directory */
+ if (IS_DEADDIR(inode)) {
+ ret = -ENOENT;
+ goto deaddir_out;
+ }
+
ret = inode->i_sb->s_cop->get_context(inode, &ctx, sizeof(ctx));
if (ret == -ENODATA) {
if (!S_ISDIR(inode->i_mode))
@@ -96,6 +102,7 @@ int fscrypt_ioctl_set_policy(struct file *filp, const void __user *arg)
ret = -EEXIST;
}
+deaddir_out:
inode_unlock(inode);
mnt_drop_write_file(filp);
--
1.9.1
|