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Fix exclusion ids for a number of rules #324

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Aug 1, 2023
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Original file line number Diff line number Diff line change
Expand Up @@ -23,7 +23,7 @@ import semmle.code.cpp.models.interfaces.Deallocation

from Expr e, string type
where
not isExcluded(e, BannedPackage::memoryAllocDeallocFunctionsOfStdlibhUsedQuery()) and
not isExcluded(e, BannedPackage::stdLibDynamicMemoryAllocationUsedQuery()) and
(
e.(FunctionCall).getTarget().(AllocationFunction).requiresDealloc() and
type = "allocation"
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Original file line number Diff line number Diff line change
Expand Up @@ -17,11 +17,10 @@ import codingstandards.c.Pointers

from CStyleCast cast, Type typeFrom, Type typeTo
where
not isExcluded(cast, Pointers1Package::castBetweenObjectPointerAndDifferentObjectTypeQuery()) and
not isExcluded(cast, Pointers1Package::conversionBetweenPointerToObjectAndIntegerTypeQuery()) and
typeFrom = cast.getExpr().getUnderlyingType() and
typeTo = cast.getUnderlyingType() and
[typeFrom, typeTo] instanceof IntegralType and
[typeFrom, typeTo] instanceof PointerToObjectType and
not isNullPointerConstant(cast.getExpr())
select cast,
"Cast performed between a pointer to object type and a pointer to an integer type."
select cast, "Cast performed between a pointer to object type and a pointer to an integer type."
Original file line number Diff line number Diff line change
Expand Up @@ -40,7 +40,7 @@ private string wcharInputOutput() {

from FunctionCall fc, Function f
where
not isExcluded(fc, BannedPackage::standardHeaderFileUsedSignalhQuery()) and
not isExcluded(fc, BannedPackage::standardLibraryInputoutputFunctionsUsedQuery()) and
fc.getTarget() = f and
(
f.getName() = stdInputOutput() and
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Original file line number Diff line number Diff line change
Expand Up @@ -17,7 +17,7 @@ import codingstandards.c.misra

from FunctionCall fc, Function f
where
not isExcluded(fc, BannedPackage::terminationFunctionsOfStdlibhUsedQuery()) and
not isExcluded(fc, BannedPackage::bsearchAndQsortOfStdlibhUsedQuery()) and
f = fc.getTarget() and
f.getName() = ["qsort", "bsearch"] and
f.getFile().getBaseName() = "stdlib.h"
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6 changes: 6 additions & 0 deletions change_notes/2023-07-5-fix-suppression-ids.md
Original file line number Diff line number Diff line change
@@ -0,0 +1,6 @@
* A number of rules had the wrong query ids attached for deviation purposes. This means they could not be deviated against using the correct ID, but could be incidentally suppressed when deviating a different rule. We have fixed this behavior for the following rules:
- `RULE-11-4`
- `DIR-4-12`
- `RULE-21-6`
- `RULE-21-9`
- `MEM51-CPP`
Original file line number Diff line number Diff line change
Expand Up @@ -26,7 +26,7 @@ predicate matching(string allocKind, string deleteKind) {

from Expr alloc, Expr free, Expr freed, string allocKind, string deleteKind
where
not isExcluded(freed, FreedPackage::newDeleteArrayMismatchQuery()) and
not isExcluded(freed, AllocationsPackage::properlyDeallocateDynamicallyAllocatedResourcesQuery()) and
allocReaches(freed, alloc, allocKind) and
freeExprOrIndirect(free, freed, deleteKind) and
not matching(allocKind, deleteKind)
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