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Subject: [PATCH 6/8] fs/ntfs3: Do not allow to change label if volume is
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From: Konstantin Komarovc <almaz.alexandrovich@paragon-software.com>
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| Series |
fs/ntfs3: Bugfix and refactoring
|
|
Commit Message
Konstantin Komarov
Sept. 26, 2023, 9:56 a.m. UTC
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
---
fs/ntfs3/super.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
return -ENOMEM;
diff --git a/fs/ntfs3/super.c b/fs/ntfs3/super.c index 5811da7e9d45..cf0a720523f0 100644 --- a/fs/ntfs3/super.c +++ b/fs/ntfs3/super.c @@ -497,7 +497,12 @@ 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)