commit a6672c0ccd312f0b2db462c2c99390a43bd11f5b
author Kazuho Oku <kazuhooku@gmail.com> Mon Nov 28 13:30:34 2022 +0900
committer Kazuho Oku <kazuhooku@gmail.com> Mon Nov 28 13:30:34 2022 +0900
tree 117c5faa2ddaa8cbd06c8fc76c503140f4c7135f
parent 054db85881dc6f72da432fabe738b8a69fccd954

public_name is at least one byte

lib/picotls.c

diff --git a/lib/picotls.c b/lib/picotls.c
index 8754b06..a3f657d 100644
--- a/lib/picotls.c
+++ b/lib/picotls.c
@@ -1038,6 +1038,10 @@
     }
     decoded->max_name_length = *(*src)++;
     ptls_decode_open_block(*src, end, 1, {
+        if (*src == end) {
+            ret = PTLS_ALERT_DECODE_ERROR;
+            goto Exit;
+        }
         decoded->public_name = ptls_iovec_init(*src, end - *src);
         *src = end;
     });