Re: how to determine if the noexec stack is defined by an application

On Fri, 2007-06-29 at 18:21 -0700, Florin Andrei wrote:
Arjan van de Ven wrote:
But it's running a Web service which is a combination of C code and
Tomcat/Java. I have no clue how to determine which portions specify a
noexec stack and which don't.

like this:

$ eu-readelf -l /bin/true | grep STACK
GNU_STACK 0x000000 0x00000000 0x00000000 0x000000 0x000000 RW 0x4

Is Sun Java 1.5 a known exception - as an application that doesn't set a
noexec stack and reverts to default?

# eu-readelf -l ./java | grep STACK | wc -l
0

But then, this bug report seems to indicate otherwise, if I'm reading it
correctly:

http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=5051381


that's not a mainline kernel; and I don't rule out that early RHEL3
versions had a 64/32 bug in this area

--
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Test the interaction between Linux and your BIOS via http://www.linuxfirmwarekit.org

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