Fix potential illegal memory access failures in the BFD library by ensuring that...

[deliverable/binutils-gdb.git] / bfd / mach-o.c

diff --git a/bfd/mach-o.c b/bfd/mach-o.c
index b494a77690886e517f255bb9ca2ef6a2f4e122b5..3b6fbb57888eec0228af39dc00c9b633d0af3a3e 100644 (file)
--- a/bfd/mach-o.c
+++ b/bfd/mach-o.c
@@ -5752,6 +5752,8 @@ bfd_mach_o_core_fetch_environment (bfd *abfd,
          unsigned char *buf = bfd_malloc (1024);
          unsigned long size = 1024;
 
+         if (buf == NULL)
+           return -1;
          for (;;)
            {
              bfd_size_type nread = 0;
@@ -5797,6 +5799,8 @@ bfd_mach_o_core_fetch_environment (bfd *abfd,
                      bottom = seg->fileoff + seg->filesize - offset;
                      top = seg->fileoff + seg->filesize - 4;
                      *rbuf = bfd_malloc (top - bottom);
+                     if (*rbuf == NULL)
+                       return -1;
                      *rlen = top - bottom;
 
                      memcpy (*rbuf, buf + size - *rlen, *rlen);
@@ -5941,6 +5945,9 @@ bfd_mach_o_follow_dsym (bfd *abfd)
   dsym_filename = (char *)bfd_malloc (strlen (base_bfd->filename)
                                       + strlen (dsym_subdir) + 1
                                       + strlen (base_basename) + 1);
+  if (dsym_filename == NULL)
+    return NULL;
+
   sprintf (dsym_filename, "%s%s/%s",
           base_bfd->filename, dsym_subdir, base_basename);