From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7A7E91F55E5; Tue, 21 Jan 2025 18:12:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737483148; cv=none; b=n/1zfIenMAKiFrDsj1HnDebv5rlWyfEyKbHKj4Rxl7jWVXSnp2juFiEJJDoV9is0OfVfE0cf/ltYMF5MN1No1suUl1qHXZwJUE41bxcnLWkTuWViT75uHqgIwbpQm2vjpYiqY6QYCK3CEDofuf5pxQNyF4R1XeA+Wi+IzDca9H4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737483148; c=relaxed/simple; bh=Vm5AL1ED9/HrExBBCcpxiSZEWSKuzYUoKfKpvtXww1Q=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=fzYIbWZ0Ln/cEbFz6dmRl5TzOdOmfabzL1GNT89H88w1KUBDCCRJPV+HRVT7NwCqdgV7Rr93Ls6aHOF7YQ+uBcsE2IQVINf/CO+IyMBZ4OIK3BIdx/k9YmDLs2j68KWXtsXlyn+37Co+URcwtPYuhFALgP0MyJ3z6/z7MrWOSno= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=0FM8BEJ8; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="0FM8BEJ8" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 97736C4CEDF; Tue, 21 Jan 2025 18:12:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1737483148; bh=Vm5AL1ED9/HrExBBCcpxiSZEWSKuzYUoKfKpvtXww1Q=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=0FM8BEJ8ZUWrZ0yt0OZS729CwejWbm7PU2Rae9Yob+jQKTsVebVZxvLZx1YHSeYqr 0ScMIZToqDBgRlKYnDL37umHA+Sz7WY1Kr6eFt1FSsgCiLI2PigLJUp8p640eyo2Iy +MX2ayQ1Wvhy7/rB5lUZdpsWPZusWgLy1UyQbnS4= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Stefano Garzarella , Luigi Leonardi , Paolo Abeni Subject: [PATCH 5.15 107/127] vsock: reset socket state when de-assigning the transport Date: Tue, 21 Jan 2025 18:52:59 +0100 Message-ID: <20250121174533.779137083@linuxfoundation.org> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20250121174529.674452028@linuxfoundation.org> References: <20250121174529.674452028@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Stefano Garzarella commit a24009bc9be60242651a21702609381b5092459e upstream. Transport's release() and destruct() are called when de-assigning the vsock transport. These callbacks can touch some socket state like sock flags, sk_state, and peer_shutdown. Since we are reassigning the socket to a new transport during vsock_connect(), let's reset these fields to have a clean state with the new transport. Fixes: c0cfa2d8a788 ("vsock: add multi-transports support") Cc: stable@vger.kernel.org Signed-off-by: Stefano Garzarella Reviewed-by: Luigi Leonardi Signed-off-by: Paolo Abeni Signed-off-by: Greg Kroah-Hartman --- net/vmw_vsock/af_vsock.c | 9 +++++++++ 1 file changed, 9 insertions(+) --- a/net/vmw_vsock/af_vsock.c +++ b/net/vmw_vsock/af_vsock.c @@ -482,6 +482,15 @@ int vsock_assign_transport(struct vsock_ */ vsk->transport->release(vsk); vsock_deassign_transport(vsk); + + /* transport's release() and destruct() can touch some socket + * state, since we are reassigning the socket to a new transport + * during vsock_connect(), let's reset these fields to have a + * clean state. + */ + sock_reset_flag(sk, SOCK_DONE); + sk->sk_state = TCP_CLOSE; + vsk->peer_shutdown = 0; } /* We increase the module refcnt to prevent the transport unloading