[5.10,0/1] xfrm: fix rcu lock in xfrm_notify_userpolicy()

Message ID	20230114205850.176370-1-pchelkin@ispras.ru (mailing list archive)
Headers	show Return-Path: <netdev-owner@vger.kernel.org> From: Fedor Pchelkin <pchelkin@ispras.ru> To: stable@vger.kernel.org, Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Fedor Pchelkin <pchelkin@ispras.ru>, Steffen Klassert <steffen.klassert@secunet.com>, Herbert Xu <herbert@gondor.apana.org.au>, "David S. Miller" <davem@davemloft.net>, Jakub Kicinski <kuba@kernel.org>, Sasha Levin <sashal@kernel.org>, Nicolas Dichtel <nicolas.dichtel@6wind.com>, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Alexey Khoroshilov <khoroshilov@ispras.ru>, lvc-project@linuxtesting.org Subject: [PATCH 5.10 0/1] xfrm: fix rcu lock in xfrm_notify_userpolicy() Date: Sat, 14 Jan 2023 23:58:48 +0300 Message-Id: <20230114205850.176370-1-pchelkin@ispras.ru> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk
Series	xfrm: fix rcu lock in xfrm_notify_userpolicy() \| expand [5.10,0/1] xfrm: fix rcu lock in xfrm_notify_userpolicy() [5.10,1/1] xfrm: fix rcu lock in xfrm_notify_userpolicy()

Message ID

20230114205850.176370-1-pchelkin@ispras.ru (mailing list archive)

Headers

From: Fedor Pchelkin <pchelkin@ispras.ru>
To: stable@vger.kernel.org,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Fedor Pchelkin <pchelkin@ispras.ru>,
        Steffen Klassert <steffen.klassert@secunet.com>,
        Herbert Xu <herbert@gondor.apana.org.au>,
        "David S. Miller" <davem@davemloft.net>,
        Jakub Kicinski <kuba@kernel.org>,
        Sasha Levin <sashal@kernel.org>,
        Nicolas Dichtel <nicolas.dichtel@6wind.com>,
        netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
        Alexey Khoroshilov <khoroshilov@ispras.ru>,
        lvc-project@linuxtesting.org
Subject: [PATCH 5.10 0/1] xfrm: fix rcu lock in xfrm_notify_userpolicy()
Date: Sat, 14 Jan 2023 23:58:48 +0300
Message-Id: <20230114205850.176370-1-pchelkin@ispras.ru>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

Series

xfrm: fix rcu lock in xfrm_notify_userpolicy() | expand

Message

Fedor Pchelkin Jan. 14, 2023, 8:58 p.m. UTC

Syzkaller reports suspicious RCU usage in xfrm_set_default in 5.10 stable
releases. The problem has been fixed by the following patch which can be
cleanly applied to 5.10 branch.

Found by Linux Verification Center (linuxtesting.org) with Syzkaller.