From: Stephan Kulow <coolo@novell.com>
Date: Thu, 8 Nov 2012 02:10:56 +0000 (-0800)
Subject: elfutils-0.148-dont-crash.diff
X-Git-Tag: accepted/tizen/20130708.234036~10
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=c8a91eed1e09e9f2c5fdd3b3a36544af43238e3d;p=platform%2Fupstream%2Felfutils.git

elfutils-0.148-dont-crash.diff

Avoid crash if the header is 0
---

diff --git a/libdw/dwarf_getcfi_elf.c b/libdw/dwarf_getcfi_elf.c
index ba00e05..65d5c71 100644
--- a/libdw/dwarf_getcfi_elf.c
+++ b/libdw/dwarf_getcfi_elf.c
@@ -76,7 +76,7 @@ parse_eh_frame_hdr (const uint8_t *hdr, size_t hdr_size, GElf_Addr hdr_vaddr,
 {
   const uint8_t *h = hdr;
 
-  if (*h++ != 1)		/* version */
+  if (!h || *h++ != 1)		/* version */
     return (void *) -1l;
 
   uint8_t eh_frame_ptr_encoding = *h++;