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[Win32k] - Lock thread when removing hooks.

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svn path=/trunk/; revision=49386
This commit is contained in:
James Tabor 2010-10-31 23:42:37 +00:00
parent bafe662783
commit 93b73bb489
1 changed files with 13 additions and 4 deletions
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17
reactos/subsystems/win32/win32k/ntuser/hook.c
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@ -801,12 +801,20 @@ FASTCALL
HOOK_DestroyThreadHooks(PETHREAD Thread)
{
PTHREADINFO pti;
PDESKTOP pdo;
int HookId;
PHOOK HookObj;
PLIST_ENTRY pElem;
pti = Thread->Tcb.Win32Thread;
if (!pti || !pti->pDeskInfo) return;
pdo = IntGetActiveDesktop();
if (!pti || !pdo)
{
DPRINT1("Kill Thread Hooks pti 0x%x pdo 0x%x\n",pti,pdo);
return;
}
ObReferenceObject(pti->pEThread);
// Local Thread cleanup.
if (pti->fsHooks)
@ -831,11 +839,11 @@ HOOK_DestroyThreadHooks(PETHREAD Thread)
pti->fsHooks = 0;
}
// Global search based on Thread and cleanup.
if (pti->rpdesk->pDeskInfo->fsHooks)
if (pdo->pDeskInfo->fsHooks)
{
for (HookId = WH_MINHOOK; HookId <= WH_MAXHOOK; HookId++)
{
PLIST_ENTRY pGLE = &pti->pDeskInfo->aphkStart[HOOKID_TO_INDEX(HookId)];
PLIST_ENTRY pGLE = &pdo->pDeskInfo->aphkStart[HOOKID_TO_INDEX(HookId)];
if (IsListEmpty(pGLE)) continue;
@ -845,7 +853,7 @@ HOOK_DestroyThreadHooks(PETHREAD Thread)
{
if (!HookObj) break;
if (HookObj->head.pti == pti)
{
{ DPRINT1("Global Hook Removed\n");
if (IntRemoveHook(HookObj)) break;
}
pElem = HookObj->Chain.Flink;
@ -854,6 +862,7 @@ HOOK_DestroyThreadHooks(PETHREAD Thread)
while (pElem != pGLE);
}
}
ObDereferenceObject(pti->pEThread);
return;
}