Aric Stewart : coreaudio: Verify valid lineId in MIXER_GETLINECONTROLSF_ONEBYTYPE.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: b314f1321939eee9187f092d13bb089e5b7d787a
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=b314f1321939eee9187f092d13bb089e5b7d787a

Author: Aric Stewart <aric at codeweavers.com>
Date:   Thu Nov 29 13:42:39 2007 +0900

coreaudio: Verify valid lineId in MIXER_GETLINECONTROLSF_ONEBYTYPE.

---

 dlls/winecoreaudio.drv/mixer.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/dlls/winecoreaudio.drv/mixer.c b/dlls/winecoreaudio.drv/mixer.c
index 25f3d55..66db8cb 100644
--- a/dlls/winecoreaudio.drv/mixer.c
+++ b/dlls/winecoreaudio.drv/mixer.c
@@ -760,6 +760,11 @@ static DWORD MIX_GetLineControls(WORD wDevID, LPMIXERLINECONTROLSW lpMlc, DWORD_
             break;
         case MIXER_GETLINECONTROLSF_ONEBYTYPE:
             TRACE("dwLineID=%d MIXER_GETLINECONTROLSF_ONEBYTYPE (%s)\n", lpMlc->dwLineID, getControlType(lpMlc->u.dwControlType));
+            if ( (lpMlc->dwLineID < 0) || (lpMlc->dwLineID >= mixer.caps.cDestinations) )
+            {
+                ret = MIXERR_INVALLINE;
+                break;
+            }
             if (lpMlc->u.dwControlType == MIXERCONTROL_CONTROLTYPE_VOLUME)
             {
                 ctrl = (lpMlc->dwLineID * ControlsPerLine) + IDControlVolume;