[patch] fix for crash on phdr or hdr == NULL

phdr-or-hdr-null.diff (text/plain), 755 bytes, created by Tavis Ormandy (RETIRED) on 2005-05-09 06:33:58 UTC

--- bfd/elf.c	2004-09-27 21:46:06.000000000 +0100
+++ bfd/elf.c	2005-05-09 14:28:54.000000000 +0100
@@ -796,7 +796,8 @@
       /* Look through the phdrs to see if we need to adjust the lma.
          If all the p_paddr fields are zero, we ignore them, since
          some ELF linkers produce such output.  */
-      phdr = elf_tdata (abfd)->phdr;
+	  if ((phdr = elf_tdata (abfd)->phdr) == NULL)
+		  return FALSE;
       for (i = 0; i < elf_elfheader (abfd)->e_phnum; i++, phdr++)
 	{
 	  if (phdr->p_paddr != 0)
@@ -1724,6 +1725,9 @@
   const struct elf_backend_data *bed = get_elf_backend_data (abfd);
   const char *name;
 
+  if (hdr == NULL)
+	  return FALSE;
+
   name = elf_string_from_elf_strtab (abfd, hdr->sh_name);
 
   switch (hdr->sh_type)