From: Jakub Kicinski <kuba@kernel.org>
To: luoqing <l1138897701@163.com>
Cc: marcelo.leitner@gmail.com, lucien.xin@gmail.com,
davem@davemloft.net, edumazet@google.com, pabeni@redhat.com,
horms@kernel.org, linux-sctp@vger.kernel.org,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
luoqing@kylinos.cn
Subject: Re: [PATCH 2/2] sctp: auth: Fix safety issue when skb_clone fails in auth_chunk handling
Date: Wed, 22 Jul 2026 11:38:42 -0700 [thread overview]
Message-ID: <20260722113842.631d51fa@kernel.org> (raw)
In-Reply-To: <20260716065259.872235-2-l1138897701@163.com>
On Thu, 16 Jul 2026 14:52:59 +0800 luoqing wrote:
> When processing AUTH + COOKIE-ECHO packets, if skb_clone fails due to
> memory pressure, chunk->auth_chunk is set to NULL but chunk->auth is
> still set to 1. This causes sctp_auth_chunk_verify to skip the AUTH
> validation (since auth_chunk is NULL), allowing unauthenticated
> COOKIE-ECHO packets to be accepted.
Fixes need Fixes tags; do not send patches in replies to existing
threads.
next prev parent reply other threads:[~2026-07-22 18:38 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-16 6:52 [PATCH 1/2] sctp: socket: Fix uninitialized error on socket shutdown luoqing
2026-07-16 6:52 ` [PATCH 2/2] sctp: auth: Fix safety issue when skb_clone fails in auth_chunk handling luoqing
2026-07-22 18:38 ` Jakub Kicinski [this message]
2026-07-16 7:42 ` [PATCH 1/2] sctp: socket: Fix uninitialized error on socket shutdown Jagielski, Jedrzej
2026-07-17 8:20 ` [PATCH net v3] sctp: socket: remove unused 'err' parameter from sctp_skb_recv_datagram luoqing
2026-07-17 15:10 ` Xin Long
2026-07-17 18:19 ` David Laight
2026-07-20 15:25 ` Xin Long
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