public inbox for binutils@sourceware.org
 help / color / mirror / Atom feed
From: Alan Modra <amodra@gmail.com>
To: binutils@sourceware.org
Subject: PR29613, use of uninitialized value in objcopy
Date: Mon, 26 Sep 2022 19:25:42 +0930	[thread overview]
Message-ID: <YzF3HqJS+AbuNc+3@squeak.grove.modra.org> (raw)

	PR 29613
	* elf.c (_bfd_elf_write_secondary_reloc_section): Trim sh_size
	back to relocs written.  Use better types for vars.

diff --git a/bfd/elf.c b/bfd/elf.c
index 9a0bc1d2740..396b56db024 100644
--- a/bfd/elf.c
+++ b/bfd/elf.c
@@ -13482,9 +13482,9 @@ _bfd_elf_write_secondary_reloc_section (bfd *abfd, asection *sec)
 	{
 	  asymbol *    last_sym;
 	  int          last_sym_idx;
-	  unsigned int reloc_count;
-	  unsigned int idx;
-	  unsigned int entsize;
+	  size_t       reloc_count;
+	  size_t       idx;
+	  bfd_size_type entsize;
 	  arelent *    src_irel;
 	  bfd_byte *   dst_rela;
 
@@ -13525,7 +13525,8 @@ _bfd_elf_write_secondary_reloc_section (bfd *abfd, asection *sec)
 	    }
 
 	  reloc_count = hdr->sh_size / entsize;
-	  if (reloc_count <= 0)
+	  hdr->sh_size = entsize * reloc_count;
+	  if (reloc_count == 0)
 	    {
 	      _bfd_error_handler
 		/* xgettext:c-format */
@@ -13572,7 +13573,7 @@ _bfd_elf_write_secondary_reloc_section (bfd *abfd, asection *sec)
 		{
 		  _bfd_error_handler
 		    /* xgettext:c-format */
-		    (_("%pB(%pA): error: reloc table entry %u is empty"),
+		    (_("%pB(%pA): error: reloc table entry %zu is empty"),
 		     abfd, relsec, idx);
 		  bfd_set_error (bfd_error_bad_value);
 		  result = false;
@@ -13597,7 +13598,7 @@ _bfd_elf_write_secondary_reloc_section (bfd *abfd, asection *sec)
 			{
 			  _bfd_error_handler
 			    /* xgettext:c-format */
-			    (_("%pB(%pA): error: secondary reloc %u"
+			    (_("%pB(%pA): error: secondary reloc %zu"
 			       " references a missing symbol"),
 			     abfd, relsec, idx);
 			  bfd_set_error (bfd_error_bad_value);
@@ -13615,7 +13616,7 @@ _bfd_elf_write_secondary_reloc_section (bfd *abfd, asection *sec)
 		    {
 		      _bfd_error_handler
 			/* xgettext:c-format */
-			(_("%pB(%pA): error: secondary reloc %u"
+			(_("%pB(%pA): error: secondary reloc %zu"
 			   " references a deleted symbol"),
 			 abfd, relsec, idx);
 		      bfd_set_error (bfd_error_bad_value);
@@ -13629,7 +13630,7 @@ _bfd_elf_write_secondary_reloc_section (bfd *abfd, asection *sec)
 		{
 		  _bfd_error_handler
 		    /* xgettext:c-format */
-		    (_("%pB(%pA): error: secondary reloc %u"
+		    (_("%pB(%pA): error: secondary reloc %zu"
 		       " is of an unknown type"),
 		     abfd, relsec, idx);
 		  bfd_set_error (bfd_error_bad_value);

-- 
Alan Modra
Australia Development Lab, IBM

             reply	other threads:[~2022-09-26  9:55 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-26  9:55 Alan Modra [this message]
2024-04-18 21:12 ` Andrew Pinski
2024-04-19  0:25   ` Alan Modra

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=YzF3HqJS+AbuNc+3@squeak.grove.modra.org \
    --to=amodra@gmail.com \
    --cc=binutils@sourceware.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).