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[NTOS:KE/X64] Enable interrupts when accessing user mode memory

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This commit is contained in:
Timo Kreuzer 2022-07-23 16:19:52 +02:00
parent 902c6eee1e
commit e45af60560
1 changed files with 11 additions and 0 deletions
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11
ntoskrnl/ke/amd64/except.c
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@ -119,6 +119,9 @@ KiDispatchExceptionToUser(
/* Get pointer to the usermode context, exception record and machine frame */
UserStack = (PKUSER_EXCEPTION_STACK)UserRsp;
/* Enable interrupts */
_enable();
/* Set up the user-stack */
_SEH2_TRY
{
@ -143,6 +146,7 @@ KiDispatchExceptionToUser(
// FIXME: handle stack overflow
/* Nothing we can do here */
_disable();
_SEH2_YIELD(return);
}
_SEH2_END;
@ -165,6 +169,8 @@ KiDispatchExceptionToUser(
/* Set RIP to the User-mode Dispatcher */
TrapFrame->Rip = (ULONG64)KeUserExceptionDispatcher;
_disable();
/* Exit to usermode */
KiServiceExit2(TrapFrame);
}
@ -202,6 +208,9 @@ KiPrepareUserDebugData(void)
Teb = KeGetCurrentThread()->Teb;
if (!Teb) return;
/* Enable interrupts */
_enable();
_SEH2_TRY
{
/* Get a pointer to the loader data */
@ -230,6 +239,8 @@ KiPrepareUserDebugData(void)
{
}
_SEH2_END;
_disable();
}
VOID