GNU bug report logs - #23498
grub2 gzio suffers from output buffer overrun when unzipping fdubcd.img.gz

Previous Next

Package: debbugs.gnu.org;

Reported by: Elmar Stellnberger <estellnb <at> elstel.org>

Date: Mon, 9 May 2016 21:00:02 UTC

Severity: normal

Tags: notabug, wontfix

Done: Glenn Morris <rgm <at> gnu.org>

Bug is archived. No further changes may be made.

To add a comment to this bug, you must first unarchive it, by sending
a message to control AT debbugs.gnu.org, with unarchive 23498 in the body.
You can then email your comments to 23498 AT debbugs.gnu.org in the normal way.

Toggle the display of automated, internal messages from the tracker.

View this report as an mbox folder, status mbox, maintainer mbox

Report forwarded to help-debbugs <at> gnu.org:
bug#23498; Package debbugs.gnu.org. (Mon, 09 May 2016 21:00:02 GMT) Full text and rfc822 format available.
Acknowledgement sent to Elmar Stellnberger <estellnb <at> elstel.org>:
New bug report received and forwarded. Copy sent to help-debbugs <at> gnu.org. (Mon, 09 May 2016 21:00:02 GMT) Full text and rfc822 format available.

Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Elmar Stellnberger <estellnb <at> elstel.org>
To: submit <at> debbugs.gnu.org
Subject: grub2 gzio suffers from output buffer overrun when unzipping
 fdubcd.img.gz
Date: Mon, 9 May 2016 22:59:45 +0200

   Package: grub
   Version: 1:2.02.beta2

See for the buffer overrun message at:
http://elstel.rivido.de/uploads/grub-gzio/screenshot.jpeg

The respective .gz file which can not be unpacked is:
http://elstel.rivido.de/uploads/grub-gzio/fdubcd.img.gz

The following menuentry produces the gzip buffer overrun:

  menuentry 'FreeDOS' {
    insmod gzio
    insmod memdisk
    linux16 (hd0,msdos18)/boot/syslinux/memdisk
    initrd16 (hd0,msdos18)/ubcd/images/fdubcd.img.gz
  }

A similar syslinux entry works fine:

LABEL -
MENU LABEL UBCD FreeDOS R1.52 (Based on NwDsk V3.40)
TEXT HELP
 FreeDOS boot disk used to run many of the other DOS apps on the UBCD. 
Revised
 version of Eric Veermans' FreeDOS NwDsk 3.40. Addresses many bug fixes,
 performance enhancements and compatibility issues.
ENDTEXT
COM32 linux.c32 memdisk
INITRD /ubcd/images/fdubcd.img.gz
Added tag(s) wontfix and notabug. Request was from Glenn Morris <rgm <at> gnu.org> to control <at> debbugs.gnu.org. (Tue, 10 May 2016 03:52:02 GMT) Full text and rfc822 format available.
bug closed, send any further explanations to 23498 <at> debbugs.gnu.org and Elmar Stellnberger <estellnb <at> elstel.org> Request was from Glenn Morris <rgm <at> gnu.org> to control <at> debbugs.gnu.org. (Tue, 10 May 2016 03:52:03 GMT) Full text and rfc822 format available.
bug archived. Request was from Debbugs Internal Request <help-debbugs <at> gnu.org> to internal_control <at> debbugs.gnu.org. (Tue, 07 Jun 2016 11:24:05 GMT) Full text and rfc822 format available.
This bug report was last modified 9 years and 73 days ago.

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.