[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Gcl-devel] Re: unexec and fedora core 4
From: |
Juho Snellman |
Subject: |
[Gcl-devel] Re: unexec and fedora core 4 |
Date: |
Fri, 9 Dec 2005 10:09:33 +0000 (UTC) |
User-agent: |
slrn/0.9.7.4 (Linux) |
<address@hidden> wrote:
> Greetings! I am a developer of GCL, which shares unexec with emacs.
> I have noticed on certain recent Fedora Core 4 machines, binaries
> produced with unexec cannot mprotect memory (allocated with brk)
> PROT_EXEC (returning EACCESS, i.e. permission denied), whereas
> binaries output by ld can do so just fine. This does not vary with
> exec-shield or randomize_va_space settings, and appears quite machine
> specific. The same binary which functions perfectly normally on one
> fc4 machine shows this failure only on another machine. I have as yet
> been unable to correlate this with dynamic library placement, or other
> settings in /proc/sys.
Just a guess, but this might be related to SELinux. Do the machines
have differences in /etc/selinux/config?
--
Juho Snellman
[Gcl-devel] Re: unexec and fedora core 4, Richard M. Stallman, 2005/12/09