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-rw-r--r--thirdparty/mbedtls/library/x509write_csr.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/thirdparty/mbedtls/library/x509write_csr.c b/thirdparty/mbedtls/library/x509write_csr.c
index d3ddbcc03d..0d6f6bb1d3 100644
--- a/thirdparty/mbedtls/library/x509write_csr.c
+++ b/thirdparty/mbedtls/library/x509write_csr.c
@@ -43,6 +43,10 @@ void mbedtls_x509write_csr_init(mbedtls_x509write_csr *ctx)
void mbedtls_x509write_csr_free(mbedtls_x509write_csr *ctx)
{
+ if (ctx == NULL) {
+ return;
+ }
+
mbedtls_asn1_free_named_data_list(&ctx->subject);
mbedtls_asn1_free_named_data_list(&ctx->extensions);