Merge branch 'efi-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...

[linux-2.6-block.git] / fs / isofs / rock.c

diff --git a/fs/isofs/rock.c b/fs/isofs/rock.c
index 5384ceb35b1cc829442d6aa440db19c553a6eed8..98b3eb7d8eaf64d5eb006801aeb130ff8503f593 100644 (file)
--- a/fs/isofs/rock.c
+++ b/fs/isofs/rock.c
@@ -203,6 +203,8 @@ int get_rock_ridge_filename(struct iso_directory_record *de,
        int retnamlen = 0;
        int truncate = 0;
        int ret = 0;
+       char *p;
+       int len;
 
        if (!ISOFS_SB(inode->i_sb)->s_rock)
                return 0;
@@ -267,12 +269,17 @@ repeat:
                                        rr->u.NM.flags);
                                break;
                        }
-                       if ((strlen(retname) + rr->len - 5) >= 254) {
+                       len = rr->len - 5;
+                       if (retnamlen + len >= 254) {
                                truncate = 1;
                                break;
                        }
-                       strncat(retname, rr->u.NM.name, rr->len - 5);
-                       retnamlen += rr->len - 5;
+                       p = memchr(rr->u.NM.name, '\0', len);
+                       if (unlikely(p))
+                               len = p - rr->u.NM.name;
+                       memcpy(retname + retnamlen, rr->u.NM.name, len);
+                       retnamlen += len;
+                       retname[retnamlen] = '\0';
                        break;
                case SIG('R', 'E'):
                        kfree(rs.buffer);