On Thu, 11 Dec 2008 22:26:05 +0000 "Duane Griffin" <duaneg@xxxxxxxxx> wrote:
> Ensure link targets are NUL-terminated, even if corrupted on-disk.
>
> Signed-off-by: Duane Griffin <duaneg@xxxxxxxxx>
> ---
>
> V2: terminate when the link is read instead of every time it is
> followed, as suggested by Dave Kleikamp.
>
> diff --git a/fs/ext3/inode.c b/fs/ext3/inode.c
> index f8424ad..c168781 100644
> --- a/fs/ext3/inode.c
> +++ b/fs/ext3/inode.c
> @@ -2817,9 +2817,10 @@ struct inode *ext3_iget(struct super_block *sb, unsigned long ino)
> inode->i_op = &ext3_dir_inode_operations;
> inode->i_fop = &ext3_dir_operations;
> } else if (S_ISLNK(inode->i_mode)) {
> - if (ext3_inode_is_fast_symlink(inode))
> + if (ext3_inode_is_fast_symlink(inode)) {
> inode->i_op = &ext3_fast_symlink_inode_operations;
> - else {
> + ((char *) ei->i_data)[inode->i_size] = '\0';
> + } else {
> inode->i_op = &ext3_symlink_inode_operations;
> ext3_set_aops(inode);
> }
Really? The ext2 on-disk format requires that the fast symlink be
null-terminated on disk? Even though the length is already in i_size?
It seems that's true. How un-ext2-like.
ext2 and ext4 need the same fix, yes?
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