Re: [PATCH v2] sctp: fix auth_chunk_list capacity check in sctp_auth_ep_add_chunkid

[email protected] Tue, 21 Jul 2026 19:40:14 +0000

Newsgroups	org.kernel.vger.linux-sctp,org.kernel.vger.linux-kernel,org.kernel.vger.netdev
Message-ID	<178466281438.1001510.4994731581512846995.git-patchwork-notify@kernel.org>

Hello:

This patch was applied to netdev/net.git (main)
by Jakub Kicinski <[email protected]>:

On Mon, 13 Jul 2026 03:20:21 +0000 you wrote:
> From: HanQuan <[email protected]>
> 
> sctp_auth_ep_add_chunkid() uses SCTP_NUM_CHUNK_TYPES (20) as the
> capacity limit for ep->auth_chunk_list, allowing it to hold up to
> 20 chunk entries (param_hdr.length up to 24). However, the copy
> destination asoc->c.auth_chunks in struct sctp_cookie is only
> SCTP_AUTH_MAX_CHUNKS (16) entries (20 bytes). When more than 16
> chunks are added, sctp_association_init() memcpy overflows the
> destination by up to 4 bytes.
> 
> [...]

Here is the summary with links:
  - [v2] sctp: fix auth_chunk_list capacity check in sctp_auth_ep_add_chunkid
    https://git.kernel.org/netdev/net/c/ff04b26794a1

You are awesome, thank you!
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