netdev - [PATCH net] rxrpc: Fix error when reading rxrpc tokens

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: Windows password security audit tool. GUI, reports in PDF.

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

Message-ID: <212125.1682093777@warthog.procyon.org.uk>
Date:   Fri, 21 Apr 2023 17:16:17 +0100
From:   David Howells <dhowells@...hat.com>
To:     netdev@...r.kernel.org
cc:     dhowells@...hat.com, Marc Dionne <marc.dionne@...istor.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, linux-afs@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH net] rxrpc: Fix error when reading rxrpc tokens

From: Marc Dionne <marc.dionne@...istor.com>

When converting from ASSERTCMP to WARN_ON, the tested condition must
be inverted, which was missed for this case.

This would cause an EIO error when trying to read an rxrpc token, for
instance when trying to display tokens with AuriStor's "tokens" command.

Fixes: 84924aac08a4 ("rxrpc: Fix checker warning")
Signed-off-by: Marc Dionne <marc.dionne@...istor.com>
Signed-off-by: David Howells <dhowells@...hat.com>
cc: "David S. Miller" <davem@...emloft.net>
cc: Eric Dumazet <edumazet@...gle.com>
cc: Jakub Kicinski <kuba@...nel.org>
cc: Paolo Abeni <pabeni@...hat.com>
cc: linux-afs@...ts.infradead.org
cc: netdev@...r.kernel.org
---
 net/rxrpc/key.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/rxrpc/key.c b/net/rxrpc/key.c
index 8d53aded09c4..33e8302a79e3 100644
--- a/net/rxrpc/key.c
+++ b/net/rxrpc/key.c
@@ -680,7 +680,7 @@ static long rxrpc_read(const struct key *key,
 			return -ENOPKG;
 		}
 
-		if (WARN_ON((unsigned long)xdr - (unsigned long)oldxdr ==
+		if (WARN_ON((unsigned long)xdr - (unsigned long)oldxdr !=
 			    toksize))
 			return -EIO;
 	}