Messages in this thread | | | Subject | Re: 2.5.63 accesses below %esp (was: Re: ntfs OOPS (2.5.63)) | Date | Mon, 17 Mar 2003 17:43:21 -0400 | From | Horst von Brand <> |
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Denis Vlasenko <vda@port.imtp.ilyichevsk.odessa.ua> said: > On 15 March 2003 20:34, Horst von Brand wrote: > > Denis Vlasenko <vda@port.imtp.ilyichevsk.odessa.ua> said:
[...]
> > > Why not? Disassemble from, say, EIP-16 and check whether you > > > have an instruction starting exactly at EIP. If no, repeat from > > > EIP-15, -14... You are guaranteed to succeed at EIP-0 ;)
> > But your previous success (if any) doesn't mean anything, and might > > even screw up the decoding after EIP
> How come? If I started to decode at EIP-n and got a sequence of > instructions at EIP-n, EIP-n+k1, EIP-n+k2, EIP-n+k3..., EIP, > instructions prior to EIP can be wrong. Instruction at EIP > and all subsequent ones ought to be right.
Iff you exactly hit EIP that way (sure, should check). But wrong previous instructions _will_ confuse people or start them on all kind of wild goose chases. Too much work for a dubious gain. -- Dr. Horst H. von Brand User #22616 counter.li.org Departamento de Informatica Fono: +56 32 654431 Universidad Tecnica Federico Santa Maria +56 32 654239 Casilla 110-V, Valparaiso, Chile Fax: +56 32 797513 - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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