public inbox for binutils@sourceware.org
 help / color / mirror / Atom feed
From: Alan Modra <amodra@gmail.com>
To: binutils@sourceware.org
Subject: Re: Sanity check read_section_stabs_debugging_info
Date: Thu, 16 Mar 2023 11:25:53 +1030	[thread overview]
Message-ID: <ZBJpGdU0OfWCD9/5@squeak.grove.modra.org> (raw)

	* rddbg.c (read_section_stabs_debugging_info): Don't segfault on
	zero size string section.

diff --git a/binutils/rddbg.c b/binutils/rddbg.c
index f2ed6bcb3dd..1a888778312 100644
--- a/binutils/rddbg.c
+++ b/binutils/rddbg.c
@@ -147,7 +147,8 @@ read_section_stabs_debugging_info (bfd *abfd, asymbol **syms, long symcount,
 	    }
 	  /* Zero terminate the strings table, just in case.  */
 	  strsize = bfd_section_size (strsec);
-	  strings [strsize - 1] = 0;
+	  if (strsize != 0)
+	    strings [strsize - 1] = 0;
 	  if (shandle == NULL)
 	    {
 	      shandle = start_stab (dhandle, abfd, true, syms, symcount);

-- 
Alan Modra
Australia Development Lab, IBM

             reply	other threads:[~2023-03-16  0:55 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-03-16  0:55 Alan Modra [this message]
  -- strict thread matches above, loose matches on Subject: below --
2023-03-14  2:05 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=ZBJpGdU0OfWCD9/5@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).