| Message ID | a1aa84a5-29d4-a4f0-0b2d-200fb49b12d5@paragon-software.com |
|---|---|
| State | New |
| Headers |
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Date: Mon, 3 Jul 2023 11:26:05 +0400
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Subject: [PATCH 4/8] fs/ntfs3: Don't allow to change label if volume is
read-only
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From: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
To: <ntfs3@lists.linux.dev>
CC: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
<linux-fsdevel@vger.kernel.org>
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|
| Series |
fs/ntfs3: Bugfix and refactoring
|
|
Commit Message
Konstantin Komarov
July 3, 2023, 7:26 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 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)