Mailinglist Archive: yast-devel (116 mails)

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Re: [yast-devel] LD_PRELOAD doesn't work for processes running as root any more
  • From: Andreas Jaeger <aj@xxxxxxx>
  • Date: Fri, 06 Jun 2008 12:34:47 +0200
  • Message-id: <m31w3aetrs.fsf@xxxxxxxxxxx>
Andreas Jaeger <aj@xxxxxxx> writes:

Marcus Meissner <meissner@xxxxxxx> writes:

On Fri, Jun 06, 2008 at 11:56:45AM +0200, Stefan Hundhammer wrote:
JFYI - this might affect us, too, at least for debugging or testing.

If there was an announcement anywhere else, I missed it. I read this just
accident on [opensuse]:

LD_PRELOAD does not work for setuid applications - and that's the
correct behaviour for quite some time...

Exact behaviour:
/* The LD_PRELOAD environment variable gives list of libraries
separated by white space or colons that are loaded before the
executable's dependencies and prepended to the global scope
list. If the binary is running setuid all elements
containing a '/' are ignored since it is insecure. */

The comment is from Jan 1997 and last changed Feb 1998,

Andreas Jaeger, Director Platform/openSUSE, aj@xxxxxxx
SUSE LINUX Products GmbH, GF: Markus Rex, HRB 16746 (AG Nürnberg)
Maxfeldstr. 5, 90409 Nürnberg, Germany
GPG fingerprint = 93A3 365E CE47 B889 DF7F FED1 389A 563C C272 A126
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