commit 54d449473b21e93805070264791e80f84f601b4d
Author: Hans Zandbelt <hans.zandbelt@zmartzone.eu>
Date:   Tue Apr 5 20:51:20 2022 +0200

    check result of cek = cjose_get_alloc()(cek_len) in jwe.c
    
    see: https://github.com/cisco/cjose/issues/110
    
    Signed-off-by: Hans Zandbelt <hans.zandbelt@zmartzone.eu>

diff --git a/src/jwe.c b/src/jwe.c
index 4285097..157ddec 100644
--- a/src/jwe.c
+++ b/src/jwe.c
@@ -2064,6 +2064,10 @@ uint8_t *cjose_jwe_decrypt_multi(cjose_jwe_t *jwe, cjose_key_locator key_locator
         {
             cek_len = jwe->cek_len;
             cek = cjose_get_alloc()(cek_len);
+            if (!cek) {
+               CJOSE_ERROR(err, CJOSE_ERR_NO_MEMORY);
+               return NULL;
+            }
             memcpy(cek, jwe->cek, cek_len);
         }
         else