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Fix #2774 (out of bounds access to trim array when the source of an input is not a stick)

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This commit is contained in:
Andre Bernet
2015-08-27 12:01:01 +02:00
parent dbca85c0e8
commit ed2ae75c8a
1 changed files with 8 additions and 5 deletions
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radio/src/mixer.cpp
+8 -5
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@@ -511,13 +511,16 @@ void evalInputs(uint8_t mode)
}
#if defined(VIRTUALINPUTS)
int getStickTrimValue(int stick, int value)
int getStickTrimValue(int stick, int stickValue)
{
if (stick < 0)
return 0;
int trim = trims[stick];
if (stick == THR_STICK) {
if (g_model.thrTrim) {
int trimMin = g_model.extendedTrims ? 2*TRIM_EXTENDED_MIN : 2*TRIM_MIN;
trim = ((g_model.throttleReversed ? (trim+trimMin) : (trim-trimMin)) * (RESX-value)) >> (RESX_SHIFT+1);
trim = ((g_model.throttleReversed ? (trim+trimMin) : (trim-trimMin)) * (RESX-stickValue)) >> (RESX_SHIFT+1);
}
if (g_model.throttleReversed) {
trim = -trim;
@@ -526,12 +529,12 @@ int getStickTrimValue(int stick, int value)
return trim;
}
int getSourceTrimValue(int source, int value=0)
int getSourceTrimValue(int source, int stickValue=0)
{
if (source >= MIXSRC_Rud && source <= MIXSRC_Ail)
return getStickTrimValue(source - MIXSRC_Rud, value);
return getStickTrimValue(source - MIXSRC_Rud, stickValue);
else if (source >= MIXSRC_FIRST_INPUT && source <= MIXSRC_LAST_INPUT)
return getStickTrimValue(virtualInputsTrims[source - MIXSRC_FIRST_INPUT], value);
return getStickTrimValue(virtualInputsTrims[source - MIXSRC_FIRST_INPUT], stickValue);
else
return 0;
}