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sys: FspEaBufferFromOriginatingProcessValidate, FspEaBufferFromFileSystemValidate

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This commit is contained in:
Bill Zissimopoulos
2019-03-20 19:06:24 -07:00
parent 8c6d037332
commit 2d0c8e14be
4 changed files with 45 additions and 10 deletions
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13
src/sys/ea.c
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@ -440,8 +440,9 @@ NTSTATUS FspFsvolQueryEaComplete(
Result = STATUS_EA_LIST_INCONSISTENT;
FSP_RETURN();
}
Irp->IoStatus.Information = 0;
Result = IoCheckEaBufferValidity((PVOID)Response->Buffer, Response->Rsp.QueryEa.Ea.Size,
Result = FspEaBufferFromFileSystemValidate(
(PVOID)Response->Buffer, /* FspEaBufferFromFileSystemValidate may alter the buffer! */
Response->Rsp.QueryEa.Ea.Size,
(PULONG)&Irp->IoStatus.Information);
if (!NT_SUCCESS(Result))
FSP_RETURN();
@ -534,7 +535,8 @@ static NTSTATUS FspFsvolSetEa(
return Result;
Buffer = Irp->AssociatedIrp.SystemBuffer;
Result = FspEaBufferAndNamesValid(Buffer, Length, (PULONG)&Irp->IoStatus.Information);
Result = FspEaBufferFromOriginatingProcessValidate(
Buffer, Length, (PULONG)&Irp->IoStatus.Information);
if (!NT_SUCCESS(Result))
return Result;
@ -583,8 +585,9 @@ NTSTATUS FspFsvolSetEaComplete(
Response->Buffer + Response->Rsp.SetEa.Ea.Size <=
(PUINT8)Response + Response->Size)
{
Irp->IoStatus.Information = 0;
Result = IoCheckEaBufferValidity((PVOID)Response->Buffer, Response->Rsp.QueryEa.Ea.Size,
Result = FspEaBufferFromFileSystemValidate(
(PVOID)Response->Buffer, /* FspEaBufferFromFileSystemValidate may alter the buffer! */
Response->Rsp.SetEa.Ea.Size,
(PULONG)&Irp->IoStatus.Information);
Valid = NT_SUCCESS(Result);
}