Messages in this thread | | | Date | Mon, 23 Jun 2008 23:13:35 +0200 | From | Ingo Molnar <> | Subject | Re: [PATCH] SGI UV: uv_ptc_proc_write security hole |
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* Cliff Wickman <cpw@sgi.com> wrote:
> From: Cliff Wickman <cpw@sgi.com> > > Someone could write 0 bytes to /proc/sgi_uv/ptc_statistics, > causing > optstr[count - 1] = '\0'; > to write to who-knows-where. > > (Andi Kleen noticed this need from a patch I sent for > similar code in the ia64 world (sn2_ptc_proc_write()).) > > (count less than zero is not possible here, as count is unsigned) > > Diffed against 2.6.26-rc6
applied to tip/x86/uv - thanks Cliff.
Ingo
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