https://www.theiphonewiki.com/w/index.php?action=history&feed=atom&title=Vm_map_enter_Patch 2026-04-21T02:55:01Z Revision history for this page on the wiki MediaWiki 1.31.14 https://www.theiphonewiki.com/w/index.php?title=Vm_map_enter_Patch&diff=21311&oldid=prev 2011-10-03T07:13:32Z

<p>switch to subcategories</p> <table class="diff diff-contentalign-left" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #222; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #222; text-align: center;">Revision as of 07:13, 3 October 2011</td> </tr><tr> <td colspan="2" class="diff-lineno">Line 27:</td> <td colspan="2" class="diff-lineno">Line 27:</td> </tr> <tr> <td class="diff-marker">&#160;</td> <td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> __text:800419C4 B loc_8004194A</div></td> <td class="diff-marker">&#160;</td> <td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> __text:800419C4 B loc_8004194A</div></td> </tr> <tr> <td class="diff-marker">&#160;</td> <td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> __text:800419C6 ; ---------------------------------------------------------------------------</div></td> <td class="diff-marker">&#160;</td> <td style="background-color: #f8f9fa; color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> __text:800419C6 ; ---------------------------------------------------------------------------</div></td> </tr> <tr> <td class="diff-marker">−</td> <td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Patches]]</div></td> <td class="diff-marker">+</td> <td style="color: #222; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>[[Category:<ins class="diffchange diffchange-inline">Kernel </ins>Patches]]</div></td> </tr> </table>

Http https://www.theiphonewiki.com/w/index.php?title=Vm_map_enter_Patch&diff=21185&oldid=prev 2011-09-25T21:12:48Z

<p>another page for category Patches - also from Stefan Esser&#039;s BlackHat presentation</p> <p><b>New page</b></p><div>{{DISPLAYTITLE:vm_map_enter Patch}}<br /> *vm_map_enter disallows pages with both VM_PROT_WRITE and VM_PROT_EXECUTE<br /> *when found VM_PROT_EXECUTE is cleared<br /> *patch just NOPs out the check<br /> <br /> __text:8004193E LDR R6, [SP,#0xCC+arg_14]<br /> __text:80041940 STR R3, [SP,#0xCC+arg_54]<br /> __text:80041942 BNE loc_8004199E<br /> __text:80041944 TST.W R6, #2<br /> __text:80041948 BNE loc_800419AC &lt;== replaced with NOP<br /> __text:8004194A <br /> __text:8004194A loc_8004194A ; CODE XREF: _vm_map_enter+90↓j<br /> __text:8004194A ; _vm_map_enter+96↓j ...<br /> __text:8004194A LSRS R3, R4, #1<br /> __text:8004194C AND.W R5, R3, #1<br /> <br /> __text:800419AC ; ---------------------------------------------------------------------------<br /> __text:800419AC <br /> __text:800419AC loc_800419AC ; CODE XREF: _vm_map_enter+28↑j<br /> __text:800419AC TST.W R6, #4<br /> __text:800419B0 BEQ loc_8004194A<br /> __text:800419B2 ANDS.W R0, R4, #0x80000<br /> __text:800419B6 BNE loc_8004194A<br /> __text:800419B8 LDR.W R1, =aVm_map_enter ; &quot;vm_map_enter&quot;<br /> __text:800419BC BL sub_8001A9E0<br /> __text:800419C0 BIC.W R6, R6, #4<br /> __text:800419C4 B loc_8004194A<br /> __text:800419C6 ; ---------------------------------------------------------------------------<br /> [[Category:Patches]]</div>

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