diff --git a/dbe/dbe.c b/dbe/dbe.c index 5b43dd1..6a2ed6a 100644 --- a/dbe/dbe.c +++ b/dbe/dbe.c @@ -42,6 +42,11 @@ #include #endif +#if HAVE_STDINT_H +#include +#elif !defined(UINT32_MAX) +#define UINT32_MAX 0xffffffffU +#endif #include #include #include "scrnintstr.h" @@ -713,11 +718,14 @@ ProcDbeSwapBuffers(ClientPtr client) return(Success); } + if (nStuff > UINT32_MAX / sizeof(DbeSwapInfoRec)) + return BadAlloc; + /* Get to the swap info appended to the end of the request. */ dbeSwapInfo = (xDbeSwapInfo *)&stuff[1]; /* Allocate array to record swap information. */ - swapInfo = (DbeSwapInfoPtr)ALLOCATE_LOCAL(nStuff * sizeof(DbeSwapInfoRec)); + swapInfo = (DbeSwapInfoPtr)Xalloc(nStuff * sizeof(DbeSwapInfoRec)); if (swapInfo == NULL) { return(BadAlloc); @@ -732,14 +740,14 @@ ProcDbeSwapBuffers(ClientPtr client) if (!(pWin = SecurityLookupWindow(dbeSwapInfo[i].window, client, SecurityWriteAccess))) { - DEALLOCATE_LOCAL(swapInfo); + Xfree(swapInfo); return(BadWindow); } /* Each window must be double-buffered - BadMatch. */ if (DBE_WINDOW_PRIV(pWin) == NULL) { - DEALLOCATE_LOCAL(swapInfo); + Xfree(swapInfo); return(BadMatch); } @@ -748,7 +756,7 @@ ProcDbeSwapBuffers(ClientPtr client) { if (dbeSwapInfo[i].window == dbeSwapInfo[j].window) { - DEALLOCATE_LOCAL(swapInfo); + Xfree(swapInfo); return(BadMatch); } } @@ -759,7 +767,7 @@ ProcDbeSwapBuffers(ClientPtr client) (dbeSwapInfo[i].swapAction != XdbeUntouched ) && (dbeSwapInfo[i].swapAction != XdbeCopied )) { - DEALLOCATE_LOCAL(swapInfo); + Xfree(swapInfo); return(BadValue); } @@ -789,12 +797,12 @@ ProcDbeSwapBuffers(ClientPtr client) error = (*pDbeScreenPriv->SwapBuffers)(client, &nStuff, swapInfo); if (error != Success) { - DEALLOCATE_LOCAL(swapInfo); + Xfree(swapInfo); return(error); } } - DEALLOCATE_LOCAL(swapInfo); + Xfree(swapInfo); return(Success); } /* ProcDbeSwapBuffers() */ @@ -876,10 +884,12 @@ ProcDbeGetVisualInfo(ClientPtr client) REQUEST_AT_LEAST_SIZE(xDbeGetVisualInfoReq); + if (stuff->n > UINT32_MAX / sizeof(DrawablePtr)) + return BadAlloc; /* Make sure any specified drawables are valid. */ if (stuff->n != 0) { - if (!(pDrawables = (DrawablePtr *)ALLOCATE_LOCAL(stuff->n * + if (!(pDrawables = (DrawablePtr *)Xalloc(stuff->n * sizeof(DrawablePtr)))) { return(BadAlloc); @@ -892,7 +902,7 @@ ProcDbeGetVisualInfo(ClientPtr client) if (!(pDrawables[i] = (DrawablePtr)SecurityLookupDrawable( drawables[i], client, SecurityReadAccess))) { - DEALLOCATE_LOCAL(pDrawables); + Xfree(pDrawables); return(BadDrawable); } } @@ -904,7 +914,7 @@ ProcDbeGetVisualInfo(ClientPtr client) { if (pDrawables) { - DEALLOCATE_LOCAL(pDrawables); + Xfree(pDrawables); } return(BadAlloc); @@ -931,7 +941,7 @@ ProcDbeGetVisualInfo(ClientPtr client) /* Free pDrawables if we needed to allocate it above. */ if (pDrawables) { - DEALLOCATE_LOCAL(pDrawables); + Xfree(pDrawables); } return(BadAlloc); @@ -1012,7 +1022,7 @@ ProcDbeGetVisualInfo(ClientPtr client) if (pDrawables) { - DEALLOCATE_LOCAL(pDrawables); + Xfree(pDrawables); } return(client->noClientException); diff --git a/render/render.c b/render/render.c index e4d8d6b..55f360a 100644 --- a/render/render.c +++ b/render/render.c @@ -47,6 +47,12 @@ #include #include "cursorstr.h" +#if HAVE_STDINT_H +#include +#elif !defined(UINT32_MAX) +#define UINT32_MAX 0xffffffffU +#endif + static int ProcRenderQueryVersion (ClientPtr pClient); static int ProcRenderQueryPictFormats (ClientPtr pClient); static int ProcRenderQueryPictIndexValues (ClientPtr pClient); @@ -1103,11 +1109,14 @@ ProcRenderAddGlyphs (ClientPtr client) } nglyphs = stuff->nglyphs; + if (nglyphs > UINT32_MAX / sizeof(GlyphNewRec)) + return BadAlloc; + if (nglyphs <= NLOCALGLYPH) glyphsBase = glyphsLocal; else { - glyphsBase = (GlyphNewPtr) ALLOCATE_LOCAL (nglyphs * sizeof (GlyphNewRec)); + glyphsBase = (GlyphNewPtr) Xalloc (nglyphs * sizeof (GlyphNewRec)); if (!glyphsBase) return BadAlloc; } @@ -1164,7 +1173,7 @@ ProcRenderAddGlyphs (ClientPtr client) } if (glyphsBase != glyphsLocal) - DEALLOCATE_LOCAL (glyphsBase); + Xfree (glyphsBase); return client->noClientException; bail: while (glyphs != glyphsBase) @@ -1173,7 +1182,7 @@ bail: xfree (glyphs->glyph); } if (glyphsBase != glyphsLocal) - DEALLOCATE_LOCAL (glyphsBase); + Xfree (glyphsBase); return err; }