commit d36f457870a807f6f29880a2f2bde5e9b761f00c

Author: Martin Sebor <msebor@redhat.com>

Date:   Tue Jan 25 17:38:31 2022 -0700

    intl: Avoid -Wuse-after-free [BZ #26779]

    Reviewed-by: Carlos O'Donell <carlos@redhat.com>

    (cherry picked from commit 7845064d2d5a50e347ee9f4b78ec5e6316190154)

diff --git a/intl/localealias.c b/intl/localealias.c

index 375af2b03153acce..28041f2a48f643fa 100644

--- a/intl/localealias.c

+++ b/intl/localealias.c

@@ -318,7 +318,15 @@ read_alias_file (const char *fname, int fname_len)

 		  if (string_space_act + alias_len + value_len > string_space_max)

 		    {

-		      /* Increase size of memory pool.  */

+#pragma GCC diagnostic push

+

+#if defined __GNUC__ && __GNUC__ >= 12

+  /* Suppress the valid GCC 12 warning until the code below is changed

+     to avoid using pointers to the reallocated block.  */

+#  pragma GCC diagnostic ignored "-Wuse-after-free"

+#endif

+

+		    /* Increase size of memory pool.  */

 		      size_t new_size = (string_space_max

 					 + (alias_len + value_len > 1024

 					    ? alias_len + value_len : 1024));

@@ -351,6 +359,8 @@ read_alias_file (const char *fname, int fname_len)

 					   value, value_len);

 		  string_space_act += value_len;

+#pragma GCC diagnostic pop

+

 		  ++nmap;

 		  ++added;

 		}