From: Julian Seward <jseward@acm.org>
Date: Wed, 4 May 2011 09:03:41 +0000 (+0000)
Subject: handle_maybe_load_notifier: assert when symbol == NULL rather than
X-Git-Tag: svn/VALGRIND_3_7_0~515
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a31f76b8fc4c9aee6faa3a7ae1ea31a013b7cd46;p=thirdparty%2Fvalgrind.git

handle_maybe_load_notifier: assert when symbol == NULL rather than
segfaulting.  Potential segfault was found by IBM's BEAM checker.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@11722
---

diff --git a/coregrind/m_redir.c b/coregrind/m_redir.c
index b45b03ece0..76186908c9 100644
--- a/coregrind/m_redir.c
+++ b/coregrind/m_redir.c
@@ -1187,6 +1187,7 @@ void handle_maybe_load_notifier( const UChar* soname,
 
    /* Normal load-notifier handling after here.  First, ignore all
       symbols lacking the right prefix. */
+   vg_assert(symbol); // assert rather than segfault if it is NULL
    if (0 != VG_(strncmp)(symbol, VG_NOTIFY_ON_LOAD_PREFIX, 
                                  VG_NOTIFY_ON_LOAD_PREFIX_LEN))
       /* Doesn't have the right prefix */