Commit b5ed3112 authored by Duane Griffin's avatar Duane Griffin Committed by Al Viro
Browse files

ext3: ensure fast symlinks are NUL-terminated



Ensure fast symlink targets are NUL-terminated, even if corrupted
on-disk.

Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Stephen Tweedie <sct@redhat.com>
Cc: linux-ext4@vger.kernel.org
Signed-off-by: default avatarDuane Griffin <duaneg@dghda.com>
Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent 8d6d0c4d
......@@ -37,6 +37,7 @@
#include <linux/uio.h>
#include <linux/bio.h>
#include <linux/fiemap.h>
#include <linux/namei.h>
#include "xattr.h"
#include "acl.h"
......@@ -2817,9 +2818,11 @@ 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 {
nd_terminate_link(ei->i_data, inode->i_size,
sizeof(ei->i_data) - 1);
} else {
inode->i_op = &ext3_symlink_inode_operations;
ext3_set_aops(inode);
}
......
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