[binutils-gdb] PR26499 UBSAN: eelf32_spu.c:537 member access null pointer

[Alan Modra]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=32168ca6c361175af68b1858ddf889b5dc44512b

commit 32168ca6c361175af68b1858ddf889b5dc44512b
Author: Alan Modra <amodra@gmail.com>
Date:   Wed Aug 26 20:12:42 2020 +0930

    PR26499 UBSAN: eelf32_spu.c:537 member access null pointer
    
    Another &p->field.
    
            PR 26499
            * emultempl/spuelf.em (spu_elf_relink): Check for NULL tmp_file_list.

Diff:
---
 ld/ChangeLog           | 5 +++++
 ld/emultempl/spuelf.em | 2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/ld/ChangeLog b/ld/ChangeLog
index 882e1c920e3..66246080332 100644
--- a/ld/ChangeLog
+++ b/ld/ChangeLog
@@ -1,3 +1,8 @@
+2020-08-26  Alan Modra  <amodra@gmail.com>
+
+	PR 26499
+	* emultempl/spuelf.em (spu_elf_relink): Check for NULL tmp_file_list.
+
 2020-08-26  Alan Modra  <amodra@gmail.com>
 
 	PR 26431
diff --git a/ld/emultempl/spuelf.em b/ld/emultempl/spuelf.em
index 56beb84f99c..fc80a401727 100644
--- a/ld/emultempl/spuelf.em
+++ b/ld/emultempl/spuelf.em
@@ -395,7 +395,7 @@ spu_elf_relink (void)
 
   memcpy (argv, my_argv, my_argc * sizeof (*argv));
   argv[my_argc++] = "--no-auto-overlay";
-  if (tmp_file_list->name == auto_overlay_file)
+  if (tmp_file_list != NULL && tmp_file_list->name == auto_overlay_file)
     argv[my_argc - 1] = concat (argv[my_argc - 1], "=",
 				auto_overlay_file, (const char *) NULL);
   argv[my_argc++] = "-T";