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Fix from X.Org for CVE-2007-5760 - XFree86 Misc extension out of

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bounds array index.
This commit is contained in:
matthieu 2008-01-17 15:41:18 +00:00
parent e57147883e
commit 478587a2d7
1 changed files with 4 additions and 0 deletions
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4
xserver/hw/xfree86/common/xf86MiscExt.c
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@ -548,6 +548,10 @@ MiscExtPassMessage(int scrnIndex, const char *msgtype, const char *msgval,
{
ScrnInfoPtr pScr = xf86Screens[scrnIndex];
/* should check this in the protocol, but xf86NumScreens isn't exported */
if (scrnIndex >= xf86NumScreens)
return BadValue;
if (*pScr->HandleMessage == NULL)
return BadImplementation;
return (*pScr->HandleMessage)(scrnIndex, msgtype, msgval, retstr);