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Merge pull request #3345 from Cornelius-Riemenschneider/openssl-allocators

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C++: Allocation.qll: Add support for openssl allocation/deallocation functions.
This commit is contained in:
Robert Marsh
2020-04-24 14:48:05 -07:00
committed by GitHub
parent 5917ce60b7 c25eb19b18
commit 4eea62cbde
2 changed files with 19 additions and 0 deletions
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15
cpp/ql/src/semmle/code/cpp/models/implementations/Allocation.qll
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@@ -89,6 +89,18 @@ class MallocAllocationFunction extends AllocationFunction {
or
// kmem_zalloc(size, flags)
name = "kmem_zalloc" and sizeArg = 0
or
// CRYPTO_malloc(size_t num, const char *file, int line)
name = "CRYPTO_malloc" and sizeArg = 0
or
// CRYPTO_zalloc(size_t num, const char *file, int line)
name = "CRYPTO_zalloc" and sizeArg = 0
or
// CRYPTO_secure_malloc(size_t num, const char *file, int line)
name = "CRYPTO_secure_malloc" and sizeArg = 0
or
// CRYPTO_secure_zalloc(size_t num, const char *file, int line)
name = "CRYPTO_secure_zalloc" and sizeArg = 0
)
)
}
@@ -169,6 +181,9 @@ class ReallocAllocationFunction extends AllocationFunction {
or
// CoTaskMemRealloc(ptr, size)
name = "CoTaskMemRealloc" and sizeArg = 1 and reallocArg = 0
or
// CRYPTO_realloc(void *addr, size_t num, const char *file, int line);
name = "CRYPTO_realloc" and sizeArg = 1 and reallocArg = 0
)
)
}

4
cpp/ql/src/semmle/code/cpp/models/implementations/Deallocation.qll
View File

@@ -19,6 +19,10 @@ class StandardDeallocationFunction extends DeallocationFunction {
name = "free" and freedArg = 0
or
name = "realloc" and freedArg = 0
or
name = "CRYPTO_free" and freedArg = 0
or
name = "CRYPTO_secure_free" and freedArg = 0
)
or
hasGlobalOrStdName(name) and