From: Karel Zak <kzak@redhat.com>
Date: Thu, 25 Jun 2026 10:17:02 +0000 (+0200)
Subject: libmount: copy uniq_id in mnt_copy_fs()
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=aca09c233df931dd9468bf0d74ed7a67ae953858;p=thirdparty%2Futil-linux.git

libmount: copy uniq_id in mnt_copy_fs()

The mnt_copy_fs() function copies all filesystem entry fields but
missed uniq_id, causing the unique mount ID to be lost when fs entries
are duplicated (e.g., for utab updates).

Signed-off-by: Karel Zak <kzak@redhat.com>
---

diff --git a/libmount/src/fs.c b/libmount/src/fs.c
index 3b7252486..a0d18a4f9 100644
--- a/libmount/src/fs.c
+++ b/libmount/src/fs.c
@@ -276,6 +276,7 @@ struct libmnt_fs *mnt_copy_fs(struct libmnt_fs *dest,
 	dest->parent     = src->parent;
 	dest->devno      = src->devno;
 	dest->tid        = src->tid;
+	dest->uniq_id    = src->uniq_id;
 
 	if (cpy_str_at_offset(dest, src, offsetof(struct libmnt_fs, source)))
 		goto err;