Changeset 58990 in vbox for trunk/src/VBox/ExtPacks/VBoxDTrace/onnv

Timestamp:

Dec 4, 2015 3:21:52 PM (9 years ago)

Author:

vboxsync

Message:

ctf_lookup.c: Fixed read beyond end of string.

File:

• trunk/src/VBox/ExtPacks/VBoxDTrace/onnv/common/ctf/ctf_lookup.c (modified) (1 diff)

trunk/src/VBox/ExtPacks/VBoxDTrace/onnv/common/ctf/ctf_lookup.c

@@ -136 +136 @@
                 for (lp = fp->ctf_lookups; lp->ctl_prefix != NULL; lp++) {
                         if (lp->ctl_prefix[0] == '\0' ||
+#ifdef VBOX
+                            (   strncmp(p, lp->ctl_prefix, (size_t)(q - p)) == 0
+                             && lp->ctl_len <= (size_t)(q - p)) /* don't push 'p' to far and crash */ ) {
+#else
                             strncmp(p, lp->ctl_prefix, (size_t)(q - p)) == 0) {
+#endif
                                 for (p += lp->ctl_len; isspace(*p); p++)
                                         continue; /* skip prefix and next ws */