Date: Wed, 22 Mar 2006 22:06:59 GMT From: Olivier Houchard <cognet@FreeBSD.org> To: Perforce Change Reviews <perforce@freebsd.org> Subject: PERFORCE change 93822 for review Message-ID: <200603222206.k2MM6xH0003341@repoman.freebsd.org>
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http://perforce.freebsd.org/chv.cgi?CH=93822 Change 93822 by cognet@cognet on 2006/03/22 22:06:17 More special casing of when vector_page == 0x00000000 : catch attempts to write to vector_page earlier in pmap_fault_fixup(), and deny it. Affected files ... .. //depot/projects/arm/src/sys/arm/arm/pmap.c#11 edit Differences ... ==== //depot/projects/arm/src/sys/arm/arm/pmap.c#11 (text+ko) ==== @@ -2021,6 +2021,8 @@ */ if (user && (pte & L2_S_PROT_U) == 0) goto out; + if (va == vector_page) + goto out; pa = l2pte_pa(pte);
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