Module Name: src
Committed By: yamaguchi
Date: Thu Apr 4 07:35:01 UTC 2024
Modified Files:
src/sys/net/lagg: if_laggproto.c
Log Message:
lagg(4): Added 0 length check
To generate a diff of this commit:
cvs rdiff -u -r1.10 -r1.11 src/sys/net/lagg/if_laggproto.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/lagg/if_laggproto.c
diff -u src/sys/net/lagg/if_laggproto.c:1.10 src/sys/net/lagg/if_laggproto.c:1.11
--- src/sys/net/lagg/if_laggproto.c:1.10 Thu Apr 4 07:31:10 2024
+++ src/sys/net/lagg/if_laggproto.c Thu Apr 4 07:35:01 2024
@@ -1,4 +1,4 @@
-/* $NetBSD: if_laggproto.c,v 1.10 2024/04/04 07:31:10 yamaguchi Exp $ */
+/* $NetBSD: if_laggproto.c,v 1.11 2024/04/04 07:35:01 yamaguchi Exp $ */
/*-
* SPDX-License-Identifier: BSD-2-Clause-NetBSD
@@ -29,7 +29,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: if_laggproto.c,v 1.10 2024/04/04 07:31:10 yamaguchi Exp $");
+__KERNEL_RCSID(0, "$NetBSD: if_laggproto.c,v 1.11 2024/04/04 07:35:01 yamaguchi Exp $");
#include <sys/param.h>
#include <sys/types.h>
@@ -695,14 +695,18 @@ lagg_lb_transmit(struct lagg_proto_softc
int s;
lb = psc->psc_ctx;
- hash = lagg_hashmbuf(psc->psc_softc, m);
+ hash = lagg_hashmbuf(psc->psc_softc, m);
s = pserialize_read_enter();
pm = lagg_portmap_active(&lb->lb_pmaps);
- hash %= pm->pm_nports;
- lp0 = pm->pm_ports[hash];
- lp = lagg_link_active(psc, lp0->lp_proto_ctx, &psref);
+ if (__predict_true(pm->pm_nports != 0)) {
+ hash %= pm->pm_nports;
+ lp0 = pm->pm_ports[hash];
+ lp = lagg_link_active(psc, lp0->lp_proto_ctx, &psref);
+ } else {
+ lp = NULL;
+ }
pserialize_read_exit(s);
