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CPP: Add support for Microsoft functions in Alloc.qll.

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Geoffrey White
2019-02-26 17:05:40 +00:00
parent 89216208be
commit e32042d69c
1 changed files with 41 additions and 2 deletions
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43
cpp/ql/src/semmle/code/cpp/commons/Alloc.qll
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@@ -15,7 +15,31 @@ predicate allocationFunction(Function f)
name = "wcsdup" or
name = "_strdup" or
name = "_wcsdup" or
name = "_mbsdup"
name = "_mbsdup" or
name = "ExAllocatePool" or
name = "ExAllocatePoolWithTag" or
name = "ExAllocatePoolWithTagPriority" or
name = "ExAllocatePoolWithQuota" or
name = "ExAllocatePoolWithQuotaTag" or
name = "ExAllocateFromLookasideListEx" or
name = "ExAllocateFromPagedLookasideList" or
name = "ExAllocateFromNPagedLookasideList" or
name = "ExAllocateTimer" or
name = "IoAllocateMdl" or
name = "IoAllocateWorkItem" or
name = "IoAllocateErrorLogEntry" or
name = "MmAllocateContiguousMemory" or
name = "MmAllocateContiguousNodeMemory" or
name = "MmAllocateContiguousMemorySpecifyCache" or
name = "MmAllocateContiguousMemorySpecifyCacheNode" or
name = "MmAllocateNonCachedMemory" or
name = "MmAllocateMappingAddress" or
name = "MmAllocatePagesForMdl" or
name = "MmAllocatePagesForMdlEx" or
name = "MmAllocateNodePagesForMdlEx" or
name = "MmMapLockedPagesWithReservedMapping" or
name = "MmMapLockedPages" or
name = "MmMapLockedPagesSpecifyCache"
)
)
}
@@ -42,7 +66,22 @@ predicate freeFunction(Function f, int argNum)
f.hasQualifiedName(name) and
(
(name = "free" and argNum = 0) or
(name = "realloc" and argNum = 0)
(name = "realloc" and argNum = 0) or
(name = "ExFreePoolWithTag" and argNum = 0) or
(name = "ExFreeToLookasideListEx" and argNum = 1) or
(name = "ExFreeToPagedLookasideList" and argNum = 1) or
(name = "ExFreeToNPagedLookasideList" and argNum = 1) or
(name = "ExDeleteTimer" and argNum = 0) or
(name = "IoFreeMdl" and argNum = 0) or
(name = "IoFreeWorkItem" and argNum = 0) or
(name = "IoFreeErrorLogEntry" and argNum = 0) or
(name = "MmFreeContiguousMemory" and argNum = 0) or
(name = "MmFreeContiguousMemorySpecifyCache" and argNum = 0) or
(name = "MmFreeNonCachedMemory" and argNum = 0) or
(name = "MmFreeMappingAddress" and argNum = 0) or
(name = "MmFreePagesFromMdl" and argNum = 0) or
(name = "MmUnmapReservedMapping" and argNum = 0) or
(name = "MmUnmapLockedPages" and argNum = 0)
)
)
}