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crypto_mem_leaks_cb

API Overview​

CRYPTO_mem_leaks_cb is an API in openssl. This rule belongs to the return value check type. This rule is generated using AURC.

Rule Description​

tip

CRYPTO_mem_leaks(), CRYPTO_mem_leaks_fp(), CRYPTO_mem_leaks_cb(), CRYPTO_set_mem_debug(), and CRYPTO_mem_ctrl() are deprecated and return -1. OPENSSL_mem_debug_push(), OPENSSL_mem_debug_pop(), CRYPTO_mem_debug_push(), and CRYPTO_mem_debug_pop() are deprecated and return 0.

info
  • Tags: return value check
  • Parameter Index: N/A
  • CWE Type: CWE-253

Rule Code​

import cpp

class OpenSSLFunctionCall extends FunctionCall {
  OpenSSLFunctionCall() {
    this.getTarget().hasName("CRYPTO_mem_leaks_cb")
  }
}

from OpenSSLFunctionCall call, UnaryOperation uop
where
  uop.getOperator() = "!" and
  uop.getOperand() = call.getAnAccess()
select uop, "This negation checks the return value of CRYPTO_mem_leaks_cb."