[PATCH]: Bug in ppc32 ld.so

Geoff Keating geoffk@geoffk.org
Fri May 10 10:22:00 GMT 2002


> Date: Sat, 11 May 2002 00:25:17 +1000
> From: Anton Blanchard <anton@samba.org>

> Paul Mackerras recently changed the cache flush avoidance logic in the
> ppc32/64 kernels to not flush the icache when we hand a zero page out
> to userspace. This resulted in intermittent SEGVs on some of my machines.
> 
> ppc32 and ppc64 are both affected by this bug in recent 2.4 (and all
> 2.5) kernels.

This is a potential security hole, it'd be better to fix it in the kernel.

-- 
- Geoffrey Keating <geoffk@geoffk.org> <geoffk@redhat.com>



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