This is a note to let you know that I've just added the patch titled
fs/ntfs3: Do not allow to change label if volume is read-only
to the 6.5-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
fs-ntfs3-do-not-allow-to-change-label-if-volume-is-r.patch
and it can be found in the queue-6.5 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 1fa262012ef0df005e1082fbd81e7104432ed736
Author: Konstantin Komarov <almaz.alexandrovich@xxxxxxxxxxxxxxxxxxxx>
Date: Mon Sep 25 10:56:15 2023 +0300
fs/ntfs3: Do not allow to change label if volume is read-only
[ Upstream commit e52dce610a2d53bf2b5e94a8843c71cb73a91ea5 ]
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/fs/ntfs3/super.c b/fs/ntfs3/super.c
index d699819c70a14..32c5de5699929 100644
--- a/fs/ntfs3/super.c
+++ b/fs/ntfs3/super.c
@@ -498,7 +498,12 @@ static ssize_t ntfs3_label_write(struct file *file, const char __user *buffer,
struct super_block *sb = pde_data(file_inode(file));
struct ntfs_sb_info *sbi = sb->s_fs_info;
ssize_t ret = count;
- u8 *label = kmalloc(count, GFP_NOFS);
+ u8 *label;
+
+ if (sb_rdonly(sb))
+ return -EROFS;
+
+ label = kmalloc(count, GFP_NOFS);
if (!label)
return -ENOMEM;
