From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 899B1326D44; Tue, 21 Jul 2026 17:38:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784655534; cv=none; b=iTwOzJ4vQA9LGIhyNSbrt6TEvWhPnWjAsJ+afQbG5RQbjC3XY+gvO2URzC3pwRL6J6EDLGXxu2OGFT1nitlNmIcO0gnV78EtnyDg/Tt3sps5MHCcN89nppk3sgc9jU5oJjcf1OLb00Tgnuf2HesvX2WvfNVz9cs9JUFEGelLd2w= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784655534; c=relaxed/simple; bh=KBp6MJH9r2R1Ta+asF+6IWe3h0ecmw7oLITXCXcQi6g=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=I19GCjYaJx14htKqONegPHcfVFbTkldH2Zfrgb507OAM+uoCJ2k1Oe7UKMgnIXqMky7xdzPhayCwYO5LvtphtnfH0xD2JlHf5ApOSDdK0f8lTbJsZgsOFEGGw3ar0fzLlYaU7zVkpkOYLC6bT9RoB0SSO60cwEwsilRUVIm+JmM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=N2zx12u8; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="N2zx12u8" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 02BA91F000E9; Tue, 21 Jul 2026 17:38:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1784655533; bh=m95GW2XTyIkNjgzrES8XlW6z4yNO+t3RvyVlpuCU5PY=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=N2zx12u8kxAxkJjHMN9AySdTv8dafAUUZzzPmK/aqy8UYnQ2kyESTVHixREUcwtV7 X2s/lOrZbVUBGBd0sJjrZKmpqWyWQh4cHdZmmoJSY7U25UBI2ryDcAStlIC/MMzLwT t6DCuMH4WkYiy3r65GCcXVQLbL7cN7U7wN5SegbU= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, David Howells , Marc Dionne , Jeffrey Altman , Simon Horman , linux-afs@lists.infradead.org, stable@kernel.org, Jakub Kicinski Subject: [PATCH 6.18 0043/1611] rxrpc: Fix potential infinite loop in rxrpc_recvmsg() Date: Tue, 21 Jul 2026 17:02:39 +0200 Message-ID: <20260721152515.792563071@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260721152514.750365251@linuxfoundation.org> References: <20260721152514.750365251@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: David Howells commit 67a0332f442ef07713cd2d9c13d59db0f1c23648 upstream. Fix the wait in rxrpc_recvmsg() also take check the oob queue. Fixes: 5800b1cf3fd8 ("rxrpc: Allow CHALLENGEs to the passed to the app for a RESPONSE") Link: https://sashiko.dev/#/patchset/20260616155749.2125907-1-dhowells%40redhat.com Signed-off-by: David Howells cc: Marc Dionne cc: Jeffrey Altman cc: Simon Horman cc: linux-afs@lists.infradead.org cc: stable@kernel.org Link: https://patch.msgid.link/20260624163819.3017002-9-dhowells@redhat.com Signed-off-by: Jakub Kicinski Signed-off-by: Greg Kroah-Hartman --- net/rxrpc/recvmsg.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/net/rxrpc/recvmsg.c +++ b/net/rxrpc/recvmsg.c @@ -436,7 +436,8 @@ try_again: return -EAGAIN; } - if (list_empty(&rx->recvmsg_q)) { + if (list_empty(&rx->recvmsg_q) && + skb_queue_empty_lockless(&rx->recvmsg_oobq)) { ret = -EWOULDBLOCK; if (timeo == 0) { call = NULL;