From: Mark Wielaard <mark@klomp.org>
To: elfutils-devel@sourceware.org
Subject: Re: [PATCH] libdwfl: Make sure dwfl_elf_phdr_memory_callback returns at least minread
Date: Tue, 4 Jan 2022 00:38:05 +0100 [thread overview]
Message-ID: <YdOI3TlKynFrigGy@wildebeest.org> (raw)
In-Reply-To: <20211223221931.1183675-1-mark@klomp.org>
On Thu, Dec 23, 2021 at 11:19:31PM +0100, Mark Wielaard wrote:
> The callers of dwfl_elf_phdr_memory_callback assume at least minread
> bytes are read and available. Make sure to check start is smaller than
> elf->maximum_size before reading more. Return false if end - start is
> smaller than minread.
>
> Found by afl-fuzz.
Pushed to master.
prev parent reply other threads:[~2022-01-03 23:38 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-23 22:19 Mark Wielaard
2022-01-03 23:38 ` Mark Wielaard [this message]
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=YdOI3TlKynFrigGy@wildebeest.org \
--to=mark@klomp.org \
--cc=elfutils-devel@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).