File efivar-fix-efidp_ipv4_addr-fields-assignment.patch of Package efivar.15770

Overview Repositories Revisions Requests Users Attributes Meta

File efivar-fix-efidp_ipv4_addr-fields-assignment.patch of Package efivar.15770

From 836461e480e2249de134efeaef79588cab045d5c Mon Sep 17 00:00:00 2001
From: Javier Martinez Canillas <javierm@redhat.com>
Date: Tue, 5 Mar 2019 17:23:36 +0100
Subject: [PATCH] dp-message: fix efidp_ipv4_addr fields assignment

The efidp_ipv4_addr structure has some 4-byte array fields to store IPv4
addresses and network mask. But the efidp_make_ipv4() function wrongly
casts these as a char * before dereferencing them to store a value.

Instead, cast it to a uint32_t * so the 32-bit value is correctly stored.

Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
---
 src/dp-message.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/src/dp-message.c b/src/dp-message.c
index 6b8e907..55fa781 100644
--- a/src/dp-message.c
+++ b/src/dp-message.c
@@ -678,16 +678,16 @@ efidp_make_ipv4(uint8_t *buf, ssize_t size, uint32_t local, uint32_t remote,
 					EFIDP_MSG_IPv4, sizeof (*ipv4));
 	ssize_t req = sizeof (*ipv4);
 	if (size && sz == req) {
-		*((char *)ipv4->local_ipv4_addr) = htonl(local);
-		*((char *)ipv4->remote_ipv4_addr) = htonl(remote);
+		*((uint32_t *)ipv4->local_ipv4_addr) = htonl(local);
+		*((uint32_t *)ipv4->remote_ipv4_addr) = htonl(remote);
 		ipv4->local_port = htons(local_port);
 		ipv4->remote_port = htons(remote_port);
 		ipv4->protocol = htons(protocol);
 		ipv4->static_ip_addr = 0;
 		if (is_static)
 			ipv4->static_ip_addr = 1;
-		*((char *)ipv4->gateway) = htonl(gateway);
-		*((char *)ipv4->netmask) = htonl(netmask);
+		*((uint32_t *)ipv4->gateway) = htonl(gateway);
+		*((uint32_t *)ipv4->netmask) = htonl(netmask);
 	}
 
 	if (sz < 0)
-- 
2.20.1

Places

File efivar-fix-efidp_ipv4_addr-fields-assignment.patch of Package efivar.15770

Places