linux-kernel - Re: [syzbot] kernel BUG in rxrpc_put

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Message-ID: <2265390.1673430114@warthog.procyon.org.uk>
Date:   Wed, 11 Jan 2023 09:41:54 +0000
From:   David Howells <dhowells@...hat.com>
To:     syzbot <syzbot+4bb6356bb29d6299360e@...kaller.appspotmail.com>
Cc:     dhowells@...hat.com, davem@...emloft.net, edumazet@...gle.com,
        kuba@...nel.org, linux-afs@...ts.infradead.org,
        linux-kernel@...r.kernel.org, marc.dionne@...istor.com,
        netdev@...r.kernel.org, pabeni@...hat.com,
        syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] kernel BUG in rxrpc_put_call

#syz test: https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git master

diff --git a/net/rxrpc/call_object.c b/net/rxrpc/call_object.c
index 3ded5a24627c..f3c9f0201c15 100644
--- a/net/rxrpc/call_object.c
+++ b/net/rxrpc/call_object.c
@@ -294,7 +294,7 @@ static void rxrpc_put_call_slot(struct rxrpc_call *call)
 static int rxrpc_connect_call(struct rxrpc_call *call, gfp_t gfp)
 {
 	struct rxrpc_local *local = call->local;
-	int ret = 0;
+	int ret = -ENOMEM;
 
 	_enter("{%d,%lx},", call->debug_id, call->user_call_ID);