diff mbox series

[5.10,037/103] nexthop: Fix off-by-one error in error path

Message ID 20210115122007.852948035@linuxfoundation.org
State New
Headers show
Series None | expand

Commit Message

Greg KH Jan. 15, 2021, 12:27 p.m. UTC
From: Ido Schimmel <idosch@nvidia.com>

[ Upstream commit 07e61a979ca4dddb3661f59328b3cd109f6b0070 ]

A reference was not taken for the current nexthop entry, so do not try
to put it in the error path.

Fixes: 430a049190de ("nexthop: Add support for nexthop groups")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/ipv4/nexthop.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

--- a/net/ipv4/nexthop.c
+++ b/net/ipv4/nexthop.c
@@ -1277,7 +1277,7 @@  static struct nexthop *nexthop_create_gr
 	return nh;
 
 out_no_nh:
-	for (; i >= 0; --i)
+	for (i--; i >= 0; --i)
 		nexthop_put(nhg->nh_entries[i].nh);
 
 	kfree(nhg->spare);