Messages in this thread | | | Subject | Re: atyfb in 2.5.51 | From | Alan Cox <> | Date | 13 Dec 2002 10:26:55 +0000 |
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On Fri, 2002-12-13 at 08:53, Geert Uytterhoeven wrote: > (At first I thought you meant an instruction where the opcode crosses those > two memory types, but we don't put code in video RAM...)
I did. The frame buffer drivers support mmap(). x86 has no "non-exec" bit. So any user able to open /dev/fb can bring down such a box. Similar things apply with early athlon and prefetching /dev/fb
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