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[NTOS:IO]

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- Add missing SEH around user buffer access in IopCompleteRequest
- Remove a redundant condition
CORE-9624

svn path=/trunk/; revision=67485
This commit is contained in:
Thomas Faber 2015-05-01 10:49:50 +00:00
parent fd81042a22
commit 6a200446dc
1 changed files with 15 additions and 8 deletions
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23
reactos/ntoskrnl/io/iomgr/irp.c
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@ -284,10 +284,18 @@ IopCompleteRequest(IN PKAPC Apc,
(Irp->IoStatus.Status != STATUS_VERIFY_REQUIRED) && (Irp->IoStatus.Status != STATUS_VERIFY_REQUIRED) &&
!(NT_ERROR(Irp->IoStatus.Status))) !(NT_ERROR(Irp->IoStatus.Status)))
{ {
/* Copy the buffer back to the user */ _SEH2_TRY
RtlCopyMemory(Irp->UserBuffer, {
Irp->AssociatedIrp.SystemBuffer, /* Copy the buffer back to the user */
Irp->IoStatus.Information); RtlCopyMemory(Irp->UserBuffer,
Irp->AssociatedIrp.SystemBuffer,
Irp->IoStatus.Information);
}
_SEH2_EXCEPT(EXCEPTION_EXECUTE_HANDLER)
{
/* Do nothing */
}
_SEH2_END;
} }
/* Also check if we should de-allocate it */ /* Also check if we should de-allocate it */
@ -317,10 +325,9 @@ IopCompleteRequest(IN PKAPC Apc,
* (but warnings are OK!), or if it was completed with an error, but * (but warnings are OK!), or if it was completed with an error, but
* did return from a pending I/O Operation and is not synchronous. * did return from a pending I/O Operation and is not synchronous.
*/ */
if (!(NT_ERROR(Irp->IoStatus.Status)) || if (!NT_ERROR(Irp->IoStatus.Status) ||
(NT_ERROR(Irp->IoStatus.Status) && (Irp->PendingReturned &&
(Irp->PendingReturned) && !IsIrpSynchronous(Irp, FileObject)))
!(IsIrpSynchronous(Irp, FileObject))))
{ {
/* Get any information we need from the FO before we kill it */ /* Get any information we need from the FO before we kill it */
if ((FileObject) && (FileObject->CompletionContext)) if ((FileObject) && (FileObject->CompletionContext))