linux-kernel - [PATCH 5.10 0/1] xfrm: fix rcu lock in xfrm_notify

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Message-Id: <20230114205850.176370-1-pchelkin@ispras.ru>
Date:   Sat, 14 Jan 2023 23:58:48 +0300
From:   Fedor Pchelkin <pchelkin@...ras.ru>
To:     stable@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Fedor Pchelkin <pchelkin@...ras.ru>,
        Steffen Klassert <steffen.klassert@...unet.com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Sasha Levin <sashal@...nel.org>,
        Nicolas Dichtel <nicolas.dichtel@...nd.com>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        Alexey Khoroshilov <khoroshilov@...ras.ru>,
        lvc-project@...uxtesting.org
Subject: [PATCH 5.10 0/1] xfrm: fix rcu lock in xfrm_notify_userpolicy()

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.