how to use it with diffirent glibc version about libheap HOT 13 CLOSED

All of the structures need to match in size and members (struct malloc_state, struct malloc_par):
http://code.metager.de/source/xref/gnu/glibc/malloc/malloc.c#1686

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Hi @3xp10it

If you try the latest git checkout it should work on glibc 2.23/2.24/2.25 on Ubuntu now.

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Hi cloudburst,

In the It is currently tested and known working on section of the README, the latest compatible libc on Ubuntu seems to be v2.23 on 16.04. Does it need to be updated?

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@HolmesSherlock

The code supports up to glibc 2.25 which is the latest released. The reason why I have not updated the README is I have not personally tested anything newer than 16.04 on Ubuntu.

If you want to use a different glibc just set the version in the config:
https://github.com/cloudburst/libheap/blob/master/libheap/libheap.cfg#L2

So it should work fine on Ubuntu 16.10 and 17.04, if not please let me know.

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@cloudburst

I don't think libc-2.24 on Ubuntu 16.10 works

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I'll take a look then, but 2.24 on Fedora 25 worked fine for me so I'm not aware of any differences on 16.10

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@cloudburst

Can you please give the Ubuntu 64 bit version a try?

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Sure, let me setup a VM and try

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@HolmesSherlock

It is working fine on my setup. Are you getting any specific errors?

bash$ apt-cache policy libc6
libc6:
  Installed: 2.24-3ubuntu2

bash$ apt-cache policy gdb
gdb:
  Installed: 7.11.90.20161005-0ubuntu1

bash$ cat .local/lib/python3.5/site-packages/libheap/libheap.cfg 
[Glibc]
version = 2.24

bash$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 16.10
Release:        16.10
Codename:       yakkety

bash$ cat .gdbinit 
source /opt/pwndbg/gdbinit.py

python import sys
python sys.path.append('~/.local/lib/python3.5/site-packages/')
python from libheap import *

bash$ sudo gdb -q -p `pidof gnome-calculator`
pwndbg>

pwndbg> heap
Arena(s) found:
  arena @ 0x7f6dbb49cb00
  arena @ 0x7f6d88000020
  arena @ 0x7f6d94000020
  arena @ 0x7f6d90000020
  arena @ 0x7f6d98000020
  arena @ 0x7f6da4000020
  arena @ 0x7f6da0000020
  arena @ 0x7f6da8000020

pwndbg> heapls 0x7f6d90000020
           ADDR             SIZE            STATUS
sbrk_base  0x7f6d900008b0
chunk      0x7f6d900008b0   0xd20           (F) FD 0x7f6d90000078 BK 0x7f6d90000078 (LC)
chunk      0x7f6d900015d0   0x1060          (inuse)
chunk      0x7f6d90002630   0x1f9d0         (top)
sbrk_end   0x7f6d900228b0

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@cloudburst

Extremely sorry. I changed the libheap.cfg in the cloned repository and reinstalled libheap. However, I incorrectly assumed that it would change the copy of libheap.cfg used by the module residing at .local/lib/python3.5/site-packages/libheap/libheap.cfg . It's working now.

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Ah ok. I think if you use the --upgrade pip flag maybe it would copy over the .cfg from the cloned repository like you were expecting. But I'm not sure.

Sorry, I want to add autodetection of glibc version to automatically set that config file properly but I just have not had time to.

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@cloudburst

Does libheap support libc-2.24, 32 bit at the moment?

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Yes it should, I've only tested 32bit support on 2.23 but it should work fine on 2.24. There are basically no major differences.

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