Signed-off-by: Konstantin Komarov <[email protected]>
---
fs/ntfs3/super.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/fs/ntfs3/super.c b/fs/ntfs3/super.c
index d24f2da36bb2..da739e509269 100644
--- a/fs/ntfs3/super.c
+++ b/fs/ntfs3/super.c
@@ -489,7 +489,12 @@ static ssize_t ntfs3_label_write(struct file *file,
const char __user *buffer,
int err;
struct super_block *sb = pde_data(file_inode(file));
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;
--
2.34.1