From efe8d69daa1a68be0a7f0f73220947c848e7ed1d Mon Sep 17 00:00:00 2001 From: Pauli Date: Mon, 19 Apr 2021 08:57:18 +1000 Subject: [PATCH] engine: fix double free on error path. In function try_decode_PKCS8Encrypted, p8 is freed via X509_SIG_free() at line 481. If function new_EMBEDDED() returns a null pointer at line 483, the execution will goto nop8. In the nop8 branch, p8 is freed again at line 491. Bug reported by @Yunlongs Fixes #14915 Reviewed-by: Tomas Mraz (Merged from https://github.com/openssl/openssl/pull/14921) --- engines/e_loader_attic.c | 1 + 1 file changed, 1 insertion(+) diff --git a/engines/e_loader_attic.c b/engines/e_loader_attic.c index 3ec31f8fc7..802b3d9067 100644 --- a/engines/e_loader_attic.c +++ b/engines/e_loader_attic.c @@ -479,6 +479,7 @@ static OSSL_STORE_INFO *try_decode_PKCS8Encrypted(const char *pem_name, mem->data = (char *)new_data; mem->max = mem->length = (size_t)new_data_len; X509_SIG_free(p8); + p8 = NULL; store_info = new_EMBEDDED(PEM_STRING_PKCS8INF, mem); if (store_info == NULL) { -- 2.34.1