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Re: [PATCH]: Bug in ppc32 ld.so
- From: Geoff Keating <geoffk at geoffk dot org>
- To: anton at samba dot org
- Cc: libc-alpha at sources dot redhat dot com
- Date: Fri, 10 May 2002 10:21:58 -0700
- Subject: Re: [PATCH]: Bug in ppc32 ld.so
- References: <20020510061250.GC10468@krispykreme> <20020510142516.GL17965@krispykreme>
- Reply-to: Geoff Keating <geoffk at redhat dot com>
> 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>