Bug 246613

Summary:	sys-apps/grep-2.5.3-r1: TEXTREL makes grep unusable
Product:	Gentoo Linux	Reporter:	Hugo Mildenberger <Hugo.Mildenberger>
Component:	Hardened	Assignee:	The Gentoo Linux Hardened Team <hardened>
Status:	RESOLVED INVALID
Severity:	critical	CC:	zorry
Priority:	High
Version:	unspecified
Hardware:	x86
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---

Description Hugo Mildenberger 2008-11-13 13:59:28 UTC

The above mentioned ebuild results in grep being unusable. Once installed, all subsequent builds will fail on a hardened, pax enabled system, since grep is
called by any configure script

Reproducible: Always

Steps to Reproduce:
1. emerge sys-apps/grep-2.5.3-r1
2. run grep
Actual Results:  
"grep: error while loading shared libraries: cannot make segment writable for relocation: Permission denied"


paxctl -m /usr/bin/grep makes grep usable again. 

/bin/fgrep and /bin/egrep are not affected by this bug.

Comment 1 Hugo Mildenberger 2008-11-13 14:01:12 UTC

Sorry, should read:

paxctl -m /bin/grep makes grep usable again

Comment 2 Gordon Malm (RETIRED) gentoo-dev

2008-11-13 16:17:42 UTC

emerge --info please.

Comment 3 Magnus Granberg gentoo-dev

2008-11-15 02:23:51 UTC

Can you try to use the stable version of grep?

Comment 4 Hugo Mildenberger 2008-11-16 16:11:40 UTC

(In reply to comment #3)
> Can you try to use the stable version of grep?
> 

I have difficulties to reproduce the situation at all, after I somehow lost the gcc-4.3.2 p1.1 from xake toolchain. When I re-emerged this version, and then re-emerged grep, the problem was gone. However, if you look at the grep makefile and sources, you would not wonder that it could trigger such instabilities (egrep and fgrep ok, but grep shows textrels). egrep and fgrep are one-line programs : #include "grep.c"

Comment 5 Gordon Malm (RETIRED) gentoo-dev

2008-11-16 17:31:14 UTC

Soo uhh, yeah.