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fix memory leak when using mbedtls backend (#158)

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_libssh2_bn_init_from_bin/_libssh2_bn_free would leak bignum from mbedtls_calloc().
This commit is contained in:
doublex
2018-04-18 19:58:35 +02:00
committed by Will Cosgrove
parent 498a5f5b3f
commit 8abc686f0e
2 changed files with 10 additions and 1 deletions
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9
src/mbedtls.c
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@@ -247,6 +247,15 @@ _libssh2_mbedtls_bignum_init(void)
return bignum; return bignum;
} }
void
_libssh2_mbedtls_bignum_free(_libssh2_bn *bn)
{
if (bn) {
mbedtls_mpi_free(bn);
mbedtls_free(bn);
}
}
static int static int
_libssh2_mbedtls_bignum_random(_libssh2_bn *bn, int bits, int top, int bottom) _libssh2_mbedtls_bignum_random(_libssh2_bn *bn, int bits, int top, int bottom)
{ {

2
src/mbedtls.h
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@@ -307,7 +307,7 @@
#define _libssh2_bn_bits(bn) \ #define _libssh2_bn_bits(bn) \
mbedtls_mpi_bitlen(bn) mbedtls_mpi_bitlen(bn)
#define _libssh2_bn_free(bn) \ #define _libssh2_bn_free(bn) \
mbedtls_mpi_free(bn) _libssh2_mbedtls_bignum_free(bn)
/*******************************************************************/ /*******************************************************************/