From: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Date: Fri, 30 Jun 2023 11:52:19 +0000 (+0400)
Subject: fs/ntfs3: Add ckeck in ni_update_parent()
X-Git-Tag: v6.6-rc7~33^2~18
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=87d1888aa40f25773fa0b948bcb2545f97e2cb15;p=thirdparty%2Fkernel%2Flinux.git

fs/ntfs3: Add ckeck in ni_update_parent()

Check simple case when parent inode equals current inode.

Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
---

diff --git a/fs/ntfs3/frecord.c b/fs/ntfs3/frecord.c
index 2b85cb10f0be4..d49fbb22bd5e8 100644
--- a/fs/ntfs3/frecord.c
+++ b/fs/ntfs3/frecord.c
@@ -3208,6 +3208,12 @@ static bool ni_update_parent(struct ntfs_inode *ni, struct NTFS_DUP_INFO *dup,
 		if (!fname || !memcmp(&fname->dup, dup, sizeof(fname->dup)))
 			continue;
 
+		/* Check simple case when parent inode equals current inode. */
+		if (ino_get(&fname->home) == ni->vfs_inode.i_ino) {
+			ntfs_set_state(sbi, NTFS_DIRTY_ERROR);
+			continue;
+		}
+
 		/* ntfs_iget5 may sleep. */
 		dir = ntfs_iget5(sb, &fname->home, NULL);
 		if (IS_ERR(dir)) {