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[binutils-gdb/binutils-2_26-branch] PowerPC64 ld segfault with code in non-executable sections


https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=d45d94d9484e5f22e1e414a17f8d4317f4f1ee37

commit d45d94d9484e5f22e1e414a17f8d4317f4f1ee37
Author: Alan Modra <amodra@gmail.com>
Date:   Tue Aug 2 23:28:47 2016 +0930

    PowerPC64 ld segfault with code in non-executable sections
    
    	PR ld/20428
    	* elf64-ppc.c (ppc_get_stub_entry): Don't segfault on NULL group.

Diff:
---
 bfd/ChangeLog   | 5 +++++
 bfd/elf64-ppc.c | 2 ++
 2 files changed, 7 insertions(+)

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 7619ab9..5b84a0b 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,8 @@
+2016-08-02  Alan Modra  <amodra@gmail.com>
+
+	PR ld/20428
+	* elf64-ppc.c (ppc_get_stub_entry): Don't segfault on NULL group.
+
 2016-06-29  Tristan Gingold  <gingold@adacore.com>
 
 	* version.m4: Bump version to 2.26.2
diff --git a/bfd/elf64-ppc.c b/bfd/elf64-ppc.c
index aa6fe08..2b2b9d1 100644
--- a/bfd/elf64-ppc.c
+++ b/bfd/elf64-ppc.c
@@ -4504,6 +4504,8 @@ ppc_get_stub_entry (const asection *input_section,
      more than one stub used to reach say, printf, and we need to
      distinguish between them.  */
   group = htab->sec_info[input_section->id].u.group;
+  if (group == NULL)
+    return NULL;
 
   if (h != NULL && h->u.stub_cache != NULL
       && h->u.stub_cache->h == h


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