From: Qi Tang <tpluszz77@gmail.com>
To: casey@schaufler-ca.com
Cc: davem@davemloft.net, kuba@kernel.org, pabeni@redhat.com,
edumazet@google.com, netdev@vger.kernel.org, lyutoon@gmail.com,
paul@paul-moore.com, horms@kernel.org, huw@codeweavers.com,
linux-security-module@vger.kernel.org,
Qi Tang <tpluszz77@gmail.com>
Subject: Re: [PATCH net 3/4] netlabel: validate CALIPSO option against skb tail in netlbl_skbuff_getattr
Date: Fri, 15 May 2026 09:54:14 +0800 [thread overview]
Message-ID: <20260515015414.186955-1-tpluszz77@gmail.com> (raw)
In-Reply-To: <7e165421-a688-4025-a33a-8eefbb84c4b5@schaufler-ca.com>
Hi Casey,
You're right. "SELinux/Smack peer-label consume path" was wrong
in the CALIPSO patch. Our reasoning was that both LSMs call
netlbl_skbuff_getattr() in their socket-rcv path, but we only
actually verified the OOB read via SELinux's compat path
(selinux=1 enforcing=0, with a CALIPSO DOI installed via
netlabelctl). We never tested with Smack and shouldn't have
included it.
v2 will say "SELinux" only on the CALIPSO patch. The companion
CIPSO patch keeps the Smack mention since Smack does use CIPSO.
Sorry for the noise.
Qi
next prev parent reply other threads:[~2026-05-15 1:54 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-14 16:51 [PATCH net 3/4] netlabel: validate CALIPSO option against skb tail in netlbl_skbuff_getattr Qi Tang
2026-05-14 17:11 ` Casey Schaufler
2026-05-15 1:54 ` Qi Tang [this message]
2026-05-15 2:18 ` Paul Moore
2026-05-15 2:42 ` Qi Tang
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20260515015414.186955-1-tpluszz77@gmail.com \
--to=tpluszz77@gmail.com \
--cc=casey@schaufler-ca.com \
--cc=davem@davemloft.net \
--cc=edumazet@google.com \
--cc=horms@kernel.org \
--cc=huw@codeweavers.com \
--cc=kuba@kernel.org \
--cc=linux-security-module@vger.kernel.org \
--cc=lyutoon@gmail.com \
--cc=netdev@vger.kernel.org \
--cc=pabeni@redhat.com \
--cc=paul@paul-moore.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.