Update.

	* sysdeps/unix/sysv/linux/ifreq.c (__ifreq): Fix memory handling.
	* sysdeps/generic/ifreq.c (__ifreq): Fix memory handling.

	* resolv/res_hconf.c (_res_hconf_reorder_addrs): Make clear that
	realloc cannot fail.

	* nss/nss_files/files-netgrp.c (EXPAND): Free buffer which cannot
	be expanded.

	* nis/nis_table.c: Clean up memory handling.
	* nis/nis_subr.c (nis_getnames): Clean up memory handling.
	* nis/nis_removemember.c (nis_removemember): Add comment
	explaining use of realloc.

1 files changed, 7 insertions, 3 deletions

diff --git a/libidn/stringprep.c b/libidn/stringprep.c
index 1841b36178..6041e3937a 100644
--- a/libidn/stringprep.c
+++ b/libidn/stringprep.c
@@ -370,9 +370,13 @@ stringprep (char *in,
 	free (ucs4);
       ucs4 = stringprep_utf8_to_ucs4 (in, -1, &ucs4len);
       maxucs4len = ucs4len + adducs4len;
-      ucs4 = realloc (ucs4, maxucs4len * sizeof (uint32_t));
-      if (!ucs4)
-	return STRINGPREP_MALLOC_ERROR;
+      uint32_t *newp = realloc (ucs4, maxucs4len * sizeof (uint32_t));
+      if (!newp)
+	{
+	  free (ucs4);
+	  return STRINGPREP_MALLOC_ERROR;
+	}
+      ucs4 = newp;
 
       rc = stringprep_4i (ucs4, &ucs4len, maxucs4len, flags, profile);
       adducs4len += 50;