From: Xin Long <lucien.xin@gmail.com>
To: Alexandr Sapozhnkiov <alsp705@gmail.com>
Cc: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
linux-sctp@vger.kernel.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org, lvc-project@linuxtesting.org
Subject: Re: [PATCH] net/sctp: fix a null dereference in sctp_disposition sctp_sf_do_5_1D_ce()
Date: Thu, 2 Oct 2025 15:27:25 -0400 [thread overview]
Message-ID: <CADvbK_frvOEC4-UbuYixCu2RbQuAOQLmTsi5-sGnO8_+ZSpT8A@mail.gmail.com> (raw)
In-Reply-To: <20251002091448.11-1-alsp705@gmail.com>
On Thu, Oct 2, 2025 at 5:14 AM Alexandr Sapozhnkiov <alsp705@gmail.com> wrote:
>
> From: Alexandr Sapozhnikov <alsp705@gmail.com>
>
> If new_asoc->peer.adaptation_ind=0 and sctp_ulpevent_make_authkey=0
> and sctp_ulpevent_make_authkey() returns 0, then the variable
> ai_ev remains zero and the zero will be dereferenced
> in the sctp_ulpevent_free() function.
>
> Found by Linux Verification Center (linuxtesting.org) with SVACE.
>
> Signed-off-by: Alexandr Sapozhnikov <alsp705@gmail.com>
Fixes: 30f6ebf65bc4 ("sctp: add SCTP_AUTH_NO_AUTH type for
AUTHENTICATION_EVENT")
Acked-by: Xin Long <lucien.xin@gmail.com>
next prev parent reply other threads:[~2025-10-02 19:27 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-02 9:14 [PATCH] net/sctp: fix a null dereference in sctp_disposition sctp_sf_do_5_1D_ce() Alexandr Sapozhnkiov
2025-10-02 19:27 ` Xin Long [this message]
2025-10-03 15:36 ` Markus Elfring
2025-10-03 15:30 ` Markus Elfring
2025-10-06 18:10 ` patchwork-bot+netdevbpf
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