linux-kernel - [PATCH] cxgb4: add forgotten u64 ivlan cast before shift

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20240816082239.4188902-1-kniv@yandex-team.ru>
Date: Fri, 16 Aug 2024 11:22:39 +0300
From: Nikolay Kuratov <kniv@...dex-team.ru>
To: linux-kernel@...r.kernel.org
Cc: netdev@...r.kernel.org,
	stable@...r.kernel.org,
	lvc-project@...uxtesting.org,
	Kumar Sanghvi <kumaras@...lsio.com>,
	Potnuri Bharat Teja <bharat@...lsio.com>,
	Rahul Lakkireddy <rahul.lakkireddy@...lsio.com>,
	Ganesh Goudar <ganeshgr@...lsio.com>,
	"David S. Miller" <davem@...emloft.net>,
	Nikolay Kuratov <kniv@...dex-team.ru>
Subject: [PATCH] cxgb4: add forgotten u64 ivlan cast before shift

It is done everywhere in cxgb4 code, e.g. in is_filter_exact_match()
There is no reason it should not be done here

Found by Linux Verification Center (linuxtesting.org) with SVACE

Signed-off-by: Nikolay Kuratov <kniv@...dex-team.ru>
Cc: stable@...r.kernel.org
Fixes: 12b276fbf6e0 ("cxgb4: add support to create hash filters")
---
 drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.c
index 786ceae34488..e417ff0ea06c 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_filter.c
@@ -1244,7 +1244,7 @@ static u64 hash_filter_ntuple(struct ch_filter_specification *fs,
 	 * in the Compressed Filter Tuple.
 	 */
 	if (tp->vlan_shift >= 0 && fs->mask.ivlan)
-		ntuple |= (FT_VLAN_VLD_F | fs->val.ivlan) << tp->vlan_shift;
+		ntuple |= (u64)(FT_VLAN_VLD_F | fs->val.ivlan) << tp->vlan_shift;
 
 	if (tp->port_shift >= 0 && fs->mask.iport)
 		ntuple |= (u64)fs->val.iport << tp->port_shift;
-- 
2.34.1