diff options
Diffstat (limited to 'src/VBox/Runtime/common/misc/sg.cpp')
| -rw-r--r-- | src/VBox/Runtime/common/misc/sg.cpp | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/src/VBox/Runtime/common/misc/sg.cpp b/src/VBox/Runtime/common/misc/sg.cpp index 4d3192d86..08ef8b632 100644 --- a/src/VBox/Runtime/common/misc/sg.cpp +++ b/src/VBox/Runtime/common/misc/sg.cpp @@ -1,4 +1,4 @@ -/* $Id: sg.cpp $ */ +/* $Id: sg.cpp 36312 2011-03-18 12:59:15Z vboxsync $ */ /** @file * IPRT - S/G buffer handling. */ @@ -38,6 +38,13 @@ static void *sgBufGet(PRTSGBUF pSgBuf, size_t *pcbData) size_t cbData = RT_MIN(*pcbData, pSgBuf->cbSegLeft); void *pvBuf = pSgBuf->pvSegCur; + AssertReleaseMsg( pSgBuf->cbSegLeft <= 5 * _1M + && (uintptr_t)pSgBuf->pvSegCur >= (uintptr_t)pSgBuf->paSegs[pSgBuf->idxSeg].pvSeg + && (uintptr_t)pSgBuf->pvSegCur + pSgBuf->cbSegLeft <= (uintptr_t)pSgBuf->paSegs[pSgBuf->idxSeg].pvSeg + pSgBuf->paSegs[pSgBuf->idxSeg].cbSeg, + ("pSgBuf->idxSeg=%d pSgBuf->cSegs=%d pSgBuf->pvSegCur=%p pSgBuf->cbSegLeft=%zd pSgBuf->paSegs[%d].pvSeg=%p pSgBuf->paSegs[%d].cbSeg=%zd\n", + pSgBuf->idxSeg, pSgBuf->cSegs, pSgBuf->pvSegCur, pSgBuf->cbSegLeft, + pSgBuf->idxSeg, pSgBuf->paSegs[pSgBuf->idxSeg].pvSeg, pSgBuf->idxSeg, pSgBuf->paSegs[pSgBuf->idxSeg].cbSeg)); + pSgBuf->cbSegLeft -= cbData; /* Advance to the next segment if required. */ |