[binutils-gdb] PR 33697, fuzzer segfault

[Alan Modra]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=66a3492ce68e1ae45b2489bd9a815c39ea5d7f66

commit 66a3492ce68e1ae45b2489bd9a815c39ea5d7f66
Author: Alan Modra <amodra@gmail.com>
Date:   Mon Dec 8 15:58:33 2025 +1030

    PR 33697, fuzzer segfault
    
            PR 33697
            * readelf.c (process_relocs): Don't segfault on no sections.

Diff:
---
 binutils/readelf.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/binutils/readelf.c b/binutils/readelf.c
index 1bd9afa1ec1..b3f59aa2128 100644
--- a/binutils/readelf.c
+++ b/binutils/readelf.c
@@ -10048,13 +10048,11 @@ process_relocs (Filedata * filedata)
       size_t i;
       bool found = false;
 
-      for (i = 0, section = filedata->section_headers;
-	   i < filedata->file_header.e_shnum;
-	   i++, section++)
-	{
+      section = filedata->section_headers;
+      if (section != NULL)
+	for (i = 0; i < filedata->file_header.e_shnum; i++, section++)
 	  if (display_relocations (section, filedata, do_reloc))
 	    found = true;
-	}
 
       if (do_reloc && ! found)
 	{