CVS commit: src/sys/net

[Kengo NAKAHARA]

Module Name:    src
Committed By:   knakahara
Date:           Tue May 10 09:05:03 UTC 2022

Modified Files:
        src/sys/net: if_pppoe.c

Log Message:
Zeroize the length explicitly when malloc failed.  Pointed out by yamaguchi@n.o.


To generate a diff of this commit:
cvs rdiff -u -r1.179 -r1.180 src/sys/net/if_pppoe.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.


Modified files:

Index: src/sys/net/if_pppoe.c
diff -u src/sys/net/if_pppoe.c:1.179 src/sys/net/if_pppoe.c:1.180
--- src/sys/net/if_pppoe.c:1.179	Wed May  4 14:30:04 2022
+++ src/sys/net/if_pppoe.c	Tue May 10 09:05:03 2022
@@ -1,4 +1,4 @@
-/* $NetBSD: if_pppoe.c,v 1.179 2022/05/04 14:30:04 martin Exp $ */
+/* $NetBSD: if_pppoe.c,v 1.180 2022/05/10 09:05:03 knakahara Exp $ */
 
 /*
  * Copyright (c) 2002, 2008 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_pppoe.c,v 1.179 2022/05/04 14:30:04 martin Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_pppoe.c,v 1.180 2022/05/10 09:05:03 knakahara Exp $");
 
 #ifdef _KERNEL_OPT
 #include "pppoe.h"
@@ -953,6 +953,7 @@ breakbreak:;
 			if (sc->sc_ac_cookie == NULL) {
 				pppoe_printf(sc, "FATAL: could not allocate memory "
 				    "for AC cookie\n");
+				sc->sc_ac_cookie_len = 0;
 				PPPOE_UNLOCK(sc);
 				goto done;
 			}
@@ -971,6 +972,7 @@ breakbreak:;
 			if (sc->sc_relay_sid == NULL) {
 				pppoe_printf(sc, "FATAL: could not allocate memory "
 				    "for relay SID\n");
+				sc->sc_relay_sid_len = 0;
 				PPPOE_UNLOCK(sc);
 				goto done;
 			}