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[binutils-gdb] Fix an illegal memory access parsing corrupt STABD debug information.
- From: Nick Clifton <nickc at sourceware dot org>
- To: bfd-cvs at sourceware dot org
- Date: 14 Feb 2017 14:17:43 -0000
- Subject: [binutils-gdb] Fix an illegal memory access parsing corrupt STABD debug information.
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=92134dc19b4bf6407a88a306b771c9c6c88658d6
commit 92134dc19b4bf6407a88a306b771c9c6c88658d6
Author: Nick Clifton <nickc@redhat.com>
Date: Tue Feb 14 14:17:09 2017 +0000
Fix an illegal memory access parsing corrupt STABD debug information.
PR binutils/21158
* rddbg.c (read_symbol_stabs_debugging_info): Check for a null or
empty symbol name.
Diff:
---
binutils/ChangeLog | 6 ++++++
binutils/rddbg.c | 3 +++
2 files changed, 9 insertions(+)
diff --git a/binutils/ChangeLog b/binutils/ChangeLog
index 99774b6..4f9bdfa 100644
--- a/binutils/ChangeLog
+++ b/binutils/ChangeLog
@@ -1,5 +1,11 @@
2017-02-14 Nick Clifton <nickc@redhat.com>
+ PR binutils/21158
+ * rddbg.c (read_symbol_stabs_debugging_info): Check for a null or
+ empty symbol name.
+
+2017-02-14 Nick Clifton <nickc@redhat.com>
+
PR binutils/21157
* stabs.c (parse_stab_enum_type): Check for corrupt NAME:VALUE
pairs.
diff --git a/binutils/rddbg.c b/binutils/rddbg.c
index ae25dec..1d8c447 100644
--- a/binutils/rddbg.c
+++ b/binutils/rddbg.c
@@ -299,7 +299,10 @@ read_symbol_stabs_debugging_info (bfd *abfd, asymbol **syms, long symcount,
*pfound = TRUE;
s = i.name;
+ if (s == NULL || strlen (s) < 1)
+ return FALSE;
f = NULL;
+
while (s[strlen (s) - 1] == '\\'
&& ps + 1 < symend)
{