[gnunet] branch master updated: check for integer overflow in buffer lib (fixes #6217)

[gnunet]

This is an automated email from the git hooks/post-receive script.

dold pushed a commit to branch master
in repository gnunet.

The following commit(s) were added to refs/heads/master by this push:
     new 892bd3c60 check for integer overflow in buffer lib (fixes #6217)
892bd3c60 is described below

commit 892bd3c6013f0a8c44106f16299a34d9a1c99e48
Author: Florian Dold <address@hidden>
AuthorDate: Fri Apr 24 13:50:05 2020 +0530

    check for integer overflow in buffer lib (fixes #6217)
---
 src/util/buffer.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/util/buffer.c b/src/util/buffer.c
index 8efb3e284..dabf630c7 100644
--- a/src/util/buffer.c
+++ b/src/util/buffer.c
@@ -56,6 +56,8 @@ GNUNET_buffer_ensure_remaining (struct GNUNET_Buffer *buf,
 {
   size_t new_capacity = buf->position + n;
 
+  /* guard against overflow */
+  GNUNET_assert (new_capacity >= buf->position);
   if (new_capacity <= buf->capacity)
     return;
   /* warn if calculation of expected size was wrong */

-- 
To stop receiving notification emails like this one, please contact
address@hidden.