diff options
| author | Duane Griffin <duaneg@dghda.com> | 2008-12-19 20:47:18 +0000 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2008-12-31 18:07:40 -0500 |
| commit | 7df5fa06de89a4ac311957e0cb9c1d87552b4325 (patch) | |
| tree | 2b724c54d644eb4649502577743e549966e4816f /fs/befs | |
| parent | a63d0ff31a136bdf52350c4e6c2929eaf47ea2b2 (diff) | |
| download | lwn-7df5fa06de89a4ac311957e0cb9c1d87552b4325.tar.gz lwn-7df5fa06de89a4ac311957e0cb9c1d87552b4325.zip | |
befs: ensure fast symlinks are NUL-terminated
Ensure fast symlink targets are NUL-terminated, even if corrupted
on-disk.
Cc: Sergey S. Kostyliov <rathamahata@php4.ru>
Signed-off-by: Duane Griffin <duaneg@dghda.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/befs')
| -rw-r--r-- | fs/befs/linuxvfs.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c index b6dfee37c7b7..d06cb023ad02 100644 --- a/fs/befs/linuxvfs.c +++ b/fs/befs/linuxvfs.c @@ -378,7 +378,8 @@ static struct inode *befs_iget(struct super_block *sb, unsigned long ino) inode->i_size = 0; inode->i_blocks = befs_sb->block_size / VFS_BLOCK_SIZE; strncpy(befs_ino->i_data.symlink, raw_inode->data.symlink, - BEFS_SYMLINK_LEN); + BEFS_SYMLINK_LEN - 1); + befs_ino->i_data.symlink[BEFS_SYMLINK_LEN - 1] = '\0'; } else { int num_blks; @@ -477,6 +478,8 @@ befs_follow_link(struct dentry *dentry, struct nameidata *nd) kfree(link); befs_error(sb, "Failed to read entire long symlink"); link = ERR_PTR(-EIO); + } else { + link[len - 1] = '\0'; } } else { link = befs_ino->i_data.symlink; |