From b5ed3112b5f74c8ec1c7aa03a76c596635e85197 Mon Sep 17 00:00:00 2001 From: Duane Griffin Date: Fri, 19 Dec 2008 20:47:14 +0000 Subject: ext3: ensure fast symlinks are NUL-terminated Ensure fast symlink targets are NUL-terminated, even if corrupted on-disk. Cc: Andrew Morton Cc: Stephen Tweedie Cc: linux-ext4@vger.kernel.org Signed-off-by: Duane Griffin Signed-off-by: Al Viro --- fs/ext3/inode.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/fs/ext3/inode.c b/fs/ext3/inode.c index f8424ad8997..c4bdccf976b 100644 --- a/fs/ext3/inode.c +++ b/fs/ext3/inode.c @@ -37,6 +37,7 @@ #include #include #include +#include #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); } -- cgit v1.2.3