diff options
| -rw-r--r-- | fs/reiserfs/dir.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/reiserfs/dir.c b/fs/reiserfs/dir.c index ffbfc2caaf20..e6b03d2020c1 100644 --- a/fs/reiserfs/dir.c +++ b/fs/reiserfs/dir.c @@ -121,6 +121,16 @@ static int reiserfs_readdir(struct file *filp, void *dirent, filldir_t filldir) continue; d_reclen = entry_length(bh, ih, entry_num); d_name = B_I_DEH_ENTRY_FILE_NAME(bh, ih, deh); + + if (d_reclen <= 0 || + d_name + d_reclen > bh->b_data + bh->b_size) { + /* There is corrupted data in entry, + * We'd better stop here */ + pathrelse(&path_to_entry); + ret = -EIO; + goto out; + } + if (!d_name[d_reclen - 1]) d_reclen = strlen(d_name); |