From: Donald Sharp <sharpd@cumulusnetworks.com>
Date: Wed, 1 Aug 2018 19:07:07 +0000 (-0400)
Subject: lib: Ensure read/write fd's are in range
X-Git-Tag: frr-6.1-dev~111^2
X-Git-Url: https://git.puffer.fish/?a=commitdiff_plain;h=9b864cd3cddb6593909bd1367025e2d3448ae6b6;p=matthieu%2Ffrr.git

lib: Ensure read/write fd's are in range

Ensure that we can properly handle a passed in read/write
fd for using in poll.

Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
---

diff --git a/lib/thread.c b/lib/thread.c
index 1c5e838772..898e9e9fce 100644
--- a/lib/thread.c
+++ b/lib/thread.c
@@ -782,6 +782,7 @@ struct thread *funcname_thread_add_read_write(int dir, struct thread_master *m,
 {
 	struct thread *thread = NULL;
 
+	assert(fd >= 0 && fd < m->fd_limit);
 	pthread_mutex_lock(&m->mtx);
 	{
 		if (t_ptr