From: David Howells <dhowells@redhat.com>
To: netdev@vger.kernel.org
Cc: dhowells@redhat.com, linux-afs@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: [PATCH net-next 02/23] rxrpc: Fix bundle counting for exclusive connections
Date: Thu, 01 Oct 2020 15:56:57 +0100 [thread overview]
Message-ID: <160156421754.1728886.8795264390611254169.stgit@warthog.procyon.org.uk> (raw)
In-Reply-To: <160156420377.1728886.5309670328610130816.stgit@warthog.procyon.org.uk>
Fix rxrpc_unbundle_conn() to not drop the bundle usage count when cleaning
up an exclusive connection.
Based on the suggested fix from Hillf Danton.
Fixes: 245500d853e9 ("rxrpc: Rewrite the client connection manager")
Reported-by: syzbot+d57aaf84dd8a550e6d91@syzkaller.appspotmail.com
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Hillf Danton <hdanton@sina.com>
---
net/rxrpc/conn_client.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/net/rxrpc/conn_client.c b/net/rxrpc/conn_client.c
index 78c845a4f1ad..5d9adfd4c84f 100644
--- a/net/rxrpc/conn_client.c
+++ b/net/rxrpc/conn_client.c
@@ -901,7 +901,7 @@ static void rxrpc_unbundle_conn(struct rxrpc_connection *conn)
struct rxrpc_bundle *bundle = conn->bundle;
struct rxrpc_local *local = bundle->params.local;
unsigned int bindex;
- bool need_drop = false;
+ bool need_drop = false, need_put = false;
int i;
_enter("C=%x", conn->debug_id);
@@ -928,10 +928,11 @@ static void rxrpc_unbundle_conn(struct rxrpc_connection *conn)
if (i == ARRAY_SIZE(bundle->conns) && !bundle->params.exclusive) {
_debug("erase bundle");
rb_erase(&bundle->local_node, &local->client_bundles);
+ need_put = true;
}
spin_unlock(&local->client_bundles_lock);
- if (i == ARRAY_SIZE(bundle->conns))
+ if (need_put)
rxrpc_put_bundle(bundle);
}
next prev parent reply other threads:[~2020-10-01 14:57 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-01 14:56 [PATCH net-next 00/23] rxrpc: Fixes and preparation for RxGK David Howells
2020-10-01 14:56 ` [PATCH net-next 01/23] keys: Provide the original description to the key preparser David Howells
2020-10-01 14:56 ` David Howells [this message]
2020-10-01 14:57 ` [PATCH net-next 03/23] rxrpc: Fix rxkad token xdr encoding David Howells
2020-10-01 14:57 ` [PATCH net-next 04/23] rxrpc: Downgrade the BUG() for unsupported token type in rxrpc_read() David Howells
2020-10-01 14:57 ` [PATCH net-next 05/23] rxrpc: Fix some missing _bh annotations on locking conn->state_lock David Howells
2020-10-01 14:57 ` [PATCH net-next 06/23] rxrpc: Fix loss of final ack on shutdown David Howells
2020-10-01 14:57 ` [PATCH net-next 07/23] rxrpc: Fix accept on a connection that need securing David Howells
2020-10-01 14:57 ` [PATCH net-next 08/23] rxrpc: The server keyring isn't network-namespaced David Howells
2020-10-01 14:57 ` [PATCH net-next 09/23] rxrpc: Change basic data packet size alignment to 1 David Howells
2020-10-01 14:57 ` [PATCH net-next 10/23] rxrpc: Remove the rxk5 security class as it's now defunct David Howells
2020-10-01 14:57 ` [PATCH net-next 11/23] rxrpc: List the held token types in the key description in /proc/keys David Howells
2020-10-01 14:58 ` [PATCH net-next 12/23] rxrpc: Allow for a security trailer in a packet David Howells
2020-10-01 14:58 ` [PATCH net-next 13/23] rxrpc: Merge prime_packet_security into init_connection_security David Howells
2020-10-01 14:58 ` [PATCH net-next 14/23] rxrpc: Support keys with multiple authentication tokens David Howells
2020-10-01 14:58 ` [PATCH net-next 15/23] rxrpc: Don't retain the server key in the connection David Howells
2020-10-01 14:58 ` [PATCH net-next 16/23] rxrpc: Split the server key type (rxrpc_s) into its own file David Howells
2020-10-01 14:58 ` [PATCH net-next 17/23] rxrpc: Hand server key parsing off to the security class David Howells
2020-10-01 14:58 ` [PATCH net-next 18/23] rxrpc: Don't reserve security header in Tx DATA skbuff David Howells
2020-10-01 14:58 ` [PATCH net-next 19/23] rxrpc: Organise connection security to use a union David Howells
2020-10-01 14:59 ` [PATCH net-next 20/23] rxrpc: Don't leak the service-side session key to userspace David Howells
2020-10-01 14:59 ` [PATCH net-next 21/23] rxrpc: Allow security classes to give more info on server keys David Howells
2020-10-01 14:59 ` [PATCH net-next 22/23] rxrpc: Make the parsing of xdr payloads more coherent David Howells
2020-10-01 14:59 ` [PATCH net-next 23/23] rxrpc: rxkad: Don't use pskb_pull() to advance through the response packet David Howells
2020-10-02 23:03 ` [PATCH net-next 00/23] rxrpc: Fixes and preparation for RxGK David Miller
2020-10-03 20:01 ` David Howells
2020-10-03 21:17 ` David Miller
2020-10-03 21:24 ` David Howells
2020-10-03 21:32 ` David Miller
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