[M57] lcms upstream patches to fix security bug

third_party/lcms2-2.6/src/cmstypes.c

Index: third_party/lcms2-2.6/src/cmstypes.c
diff --git a/third_party/lcms2-2.6/src/cmstypes.c b/third_party/lcms2-2.6/src/cmstypes.c
index e5ed06c337f10142748d97c6bebcd5559887f763..0256e247b4c60140cf2a49627e1a8edb3498415d 100644
--- a/third_party/lcms2-2.6/src/cmstypes.c
+++ b/third_party/lcms2-2.6/src/cmstypes.c
@@ -1755,8 +1755,8 @@ void *Type_LUT8_Read(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, cms
     if (!_cmsReadUInt8Number(io, NULL)) goto Error;
 
     // Do some checking
-    if (InputChannels > cmsMAXCHANNELS)  goto Error;
-    if (OutputChannels > cmsMAXCHANNELS) goto Error;
+    if (InputChannels == 0 || InputChannels > cmsMAXCHANNELS)  goto Error;
+    if (OutputChannels == 0 || OutputChannels > cmsMAXCHANNELS) goto Error;
 
    // Allocates an empty Pipeline
     NewLUT = cmsPipelineAlloc(self ->ContextID, InputChannels, OutputChannels);
@@ -2048,8 +2048,8 @@ void *Type_LUT16_Read(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, cm
     if (!_cmsReadUInt8Number(io, NULL)) return NULL;
 
     // Do some checking
-    if (InputChannels > cmsMAXCHANNELS)  goto Error;
-    if (OutputChannels > cmsMAXCHANNELS) goto Error;
+    if (InputChannels == 0 || InputChannels > cmsMAXCHANNELS)  goto Error;
+    if (OutputChannels == 0 || OutputChannels > cmsMAXCHANNELS) goto Error;
 
     // Allocates an empty LUT
     NewLUT = cmsPipelineAlloc(self ->ContextID, InputChannels, OutputChannels);
@@ -2486,7 +2486,10 @@ void* Type_LUTA2B_Read(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, c
     if (!_cmsReadUInt32Number(io, &offsetC)) return NULL;
     if (!_cmsReadUInt32Number(io, &offsetA)) return NULL;
 
-   // Allocates an empty LUT
+    if (inputChan == 0 || inputChan >= cmsMAXCHANNELS) return NULL;
+    if (outputChan == 0 || outputChan >= cmsMAXCHANNELS) return NULL;
+
+    // Allocates an empty LUT
     NewLUT = cmsPipelineAlloc(self ->ContextID, inputChan, outputChan);
     if (NewLUT == NULL) return NULL;
 
@@ -2794,6 +2797,9 @@ void* Type_LUTB2A_Read(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, c
     if (!_cmsReadUInt8Number(io, &inputChan)) return NULL;
     if (!_cmsReadUInt8Number(io, &outputChan)) return NULL;
 
+    if (inputChan == 0 || inputChan >= cmsMAXCHANNELS) return NULL;
+    if (outputChan == 0 || outputChan >= cmsMAXCHANNELS) return NULL;
+
     // Padding
     if (!_cmsReadUInt16Number(io, NULL)) return NULL;
 
@@ -4443,6 +4449,9 @@ void *Type_MPE_Read(struct _cms_typehandler_struct* self, cmsIOHANDLER* io, cmsU
     if (!_cmsReadUInt16Number(io, &InputChans)) return NULL;
     if (!_cmsReadUInt16Number(io, &OutputChans)) return NULL;
 
+    if (InputChans == 0 || InputChans >= cmsMAXCHANNELS) return NULL;
+    if (OutputChans == 0 || OutputChans >= cmsMAXCHANNELS) return NULL;
+
     // Allocates an empty LUT
     NewLUT = cmsPipelineAlloc(self ->ContextID, InputChans, OutputChans);
     if (NewLUT == NULL) return NULL;