diff options
Diffstat (limited to 'fs/efs/dir.c')
| -rw-r--r-- | fs/efs/dir.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/efs/dir.c b/fs/efs/dir.c index ea8efd2dd..ea484dab4 100644 --- a/fs/efs/dir.c +++ b/fs/efs/dir.c @@ -109,6 +109,13 @@ static int efs_readdir(struct file *filp, void *dirent, filldir_t filldir) { /* copy filename and data in dirslot */ filldir(dirent, nameptr, namelen, filp->f_pos, inodenum); + /* sanity check */ + if (nameptr - (char *) dirblock + namelen > EFS_DIRBSIZE) { + printk(KERN_WARNING "EFS: directory entry %d exceeds directory block\n", slot); + slot++; + continue; + } + /* store position of next slot */ if (++slot == dirblock->slots) { slot = 0; |