commit 9ac3e23f5dff2787bb82c504166b60d03f0a94c1
author Troy-Butler <squintik@outlook.com> Fri Mar 22 14:46:04 2024 -0400
committer Troy-Butler <squintik@outlook.com> Fri Mar 22 14:46:04 2024 -0400
tree e3e86a6129c7e6fbc2abcf62bf81532feba977cd
parent 611f899c0c9d397baedfaec34ea0861ad2543991

Fix NULL argument handling in mbedtls_xxx_free() functions

Signed-off-by: Troy-Butler <squintik@outlook.com>

library/pem.c

diff --git a/library/pem.c b/library/pem.c
index 0fee5df..0207601 100644
--- a/library/pem.c
+++ b/library/pem.c
@@ -481,6 +481,10 @@
 
 void mbedtls_pem_free(mbedtls_pem_context *ctx)
 {
+    if (ctx == NULL) {
+        return;
+    }
+
     if (ctx->buf != NULL) {
         mbedtls_zeroize_and_free(ctx->buf, ctx->buflen);
     }