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 90F263C871B for ; Mon, 13 Apr 2026 12:50:59 +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=1776084659; cv=none; b=e6GDeNsbfszGm4Qg5/6kmlPjwqMm0c+N5lIsXxekPV+Mkuo6NNuIRaHEVFaI3mgf+KmG+KThcXYHNeQJIKzWspt9UAuUl+XJlbYm6LY6oOBgNBnSVyJezPGjq/rTLW61IhzNoMRTYz1fGIlAygA+DYC3p/SgfyUjkVUq0IXOq4g= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776084659; c=relaxed/simple; bh=gqJJLCT2tTTlSQtO0ipu1I2L9+6W8QdwO4DYJvQm57s=; h=Subject:To:Cc:From:Date:Message-ID:MIME-Version:Content-Type; b=u+AUKbf0clIHXIU8dZ9X+TBxQpsKSg/4dwLJFZw1JzvM14oKjDGIMc1bYFHNLAJbe4agPPI89gLWZ9bEbbZxF83Mx1whQYQ7wKoaFhvFk3gTWDWvkgft71k3WZubiHTy2qMsSG5ReZetnobX6CwaU3gWQWYX5kgHZMRSa5u6fv8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=C4E/iWXt; 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="C4E/iWXt" Received: by smtp.kernel.org (Postfix) with ESMTPSA id DF407C2BCAF; Mon, 13 Apr 2026 12:50:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1776084659; bh=gqJJLCT2tTTlSQtO0ipu1I2L9+6W8QdwO4DYJvQm57s=; h=Subject:To:Cc:From:Date:From; b=C4E/iWXtdIkm74f2k9BNv3wvpiLrtsVCRb9PVizrxqAwZFPhx44mFMfNBeqLTZrmd zRc9J9KSO1t0cO9/V0YHMUh2euXmHgGnwE1lgDmFttfUozzOl4zhFU0m3cyQw5SKox mNxlYuf1bxwuZGaxz5cAy+y7hFaqNjylVsnV7CyU= Subject: FAILED: patch "[PATCH] rxrpc: fix reference count leak in rxrpc_server_keyring()" failed to apply to 5.10-stable tree To: rakukuip@gmail.com,bird@lzu.edu.cn,dhowells@redhat.com,enjou1224z@gmail.com,horms@kernel.org,kuba@kernel.org,marc.dionne@auristor.com,n05ec@lzu.edu.cn,tomapufckgml@gmail.com,yifanwucs@gmail.com,yuantan098@gmail.com Cc: From: Date: Mon, 13 Apr 2026 14:34:55 +0200 Message-ID: <2026041355-flap-narrow-9fea@gregkh> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit The patch below does not apply to the 5.10-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to . To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.10.y git checkout FETCH_HEAD git cherry-pick -x f125846ee79fcae537a964ce66494e96fa54a6de # git commit -s git send-email --to '' --in-reply-to '2026041355-flap-narrow-9fea@gregkh' --subject-prefix 'PATCH 5.10.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From f125846ee79fcae537a964ce66494e96fa54a6de Mon Sep 17 00:00:00 2001 From: Luxiao Xu Date: Wed, 8 Apr 2026 13:12:42 +0100 Subject: [PATCH] rxrpc: fix reference count leak in rxrpc_server_keyring() This patch fixes a reference count leak in rxrpc_server_keyring() by checking if rx->securities is already set. Fixes: 17926a79320a ("[AF_RXRPC]: Provide secure RxRPC sockets for use by userspace and kernel both") Reported-by: Yifan Wu Reported-by: Juefei Pu Co-developed-by: Yuan Tan Signed-off-by: Yuan Tan Suggested-by: Xin Liu Tested-by: Ren Wei Signed-off-by: Luxiao Xu Signed-off-by: Ren Wei Signed-off-by: David Howells cc: Marc Dionne cc: Simon Horman cc: linux-afs@lists.infradead.org cc: stable@kernel.org Link: https://patch.msgid.link/20260408121252.2249051-15-dhowells@redhat.com Signed-off-by: Jakub Kicinski diff --git a/net/rxrpc/server_key.c b/net/rxrpc/server_key.c index 36b05fd842a7..27491f1e1273 100644 --- a/net/rxrpc/server_key.c +++ b/net/rxrpc/server_key.c @@ -125,6 +125,9 @@ int rxrpc_server_keyring(struct rxrpc_sock *rx, sockptr_t optval, int optlen) _enter(""); + if (rx->securities) + return -EINVAL; + if (optlen <= 0 || optlen > PAGE_SIZE - 1) return -EINVAL;