Messages in this thread Patch in this message | | | Date | Mon, 3 Jul 2023 11:26:05 +0400 | Subject | [PATCH 4/8] fs/ntfs3: Don't allow to change label if volume is read-only | From | Konstantin Komarov <> |
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Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com> --- 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
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