bugGNU GRUB - Bugs: bug #47977, grub2 gzio suffers from output...


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bug #47977: grub2 gzio suffers from output buffer overrun when unzipping fdubcd.img.gz

Submitted by:  Elmar Stellnberger <estellnb>
Submitted on:  Sun 22 May 2016 03:53:01 PM UTC  
Category:  Booting Severity:  Major
Priority:  6 Item Group:  Software Error
Status:  None Privacy:  Public
Assigned to:  None Originator Name:  Elmar Stellnberger
Open/Closed:  Open Release: 
Release:  other Reproducibility:  Every Time
Planned Release:  2.02

Sun 22 May 2016 03:53:01 PM UTC, original submission:

Package: grub
Version: 1:2.02.beta2

See for the buffer overrun message at:

The respective .gz file which can not be unpacked is:

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:

MENU LABEL UBCD FreeDOS R1.52 (Based on NwDsk V3.40)
FreeDOS boot disk used to run many of the other DOS apps on the UBCD.
version of Eric Veermans' FreeDOS NwDsk 3.40. Addresses many bug fixes,
performance enhancements and compatibility issues.
COM32 linux.c32 memdisk
INITRD /ubcd/images/fdubcd.img.gz

Elmar Stellnberger <estellnb>


Attached Files
file #37228:  P1040001.JPG added by estellnb (508KiB - image/jpeg)


Depends on the following items: None found

Items that depend on this one: None found


Carbon-Copy List
  • -email is unavailable- added by phcoder (Updated the item)
  • -email is unavailable- added by estellnb (Submitted the item)

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    Follow 3 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2016-10-11 phcoder Priority5 - Normal => 6
        Planned ReleaseNone => 2.02
    2016-05-22 estellnb Attached File- => Added P1040001.JPG, #37228

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