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Wed, 01 Jul 2026 18:10:35 -0700 (PDT) Message-ID: <6a45ba8b.940a5a52.377c47.efec@mx.google.com> Date: Wed, 01 Jul 2026 18:10:35 -0700 (PDT) Content-Type: text/plain; charset="utf-8" Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: base64 From: Tristan Madani To: Paul Moore , Stephen Smalley Cc: Ondrej Mosnacek , Richard Haines , selinux@vger.kernel.org, stable@vger.kernel.org, linux-kernel@vger.kernel.org, tristan@talencesecurity.com Subject: Re: [PATCH v3] selinux: avoid sk_socket dereference in selinux_sctp_bind_connect() In-Reply-To: <0fa8e2f769f889368756a1ed1f12ea8e@paul-moore.com> References: <20260625235336.3641828-1-tristmd@gmail.com> <0fa8e2f769f889368756a1ed1f12ea8e@paul-moore.com> T24gV2VkLCAwMSBKdWwgMjAyNiwgUGF1bCBNb29yZSB3cm90ZToKPiBIb3dldmVyLCB0aGVyZSBp cyBhbm90aGVyIGlzc3VlIHJlbGF0aW5nIHRvIHRoZSBTQ1RQIHNvZnRpcnEgY29kZSBwYXRoczoK PiB0aGUgZmFjdCB0aGF0IHdlIGNhbGwgaW50byBzb2NrX2hhc19wZXJtKCkgaW4gYm90aAo+IF9f c2VsaW51eF9zb2NrZXRfYmluZCgpIGFuZCBzZWxpbnV4X3NvY2tldF9jb25uZWN0X2hlbHBlcigp LiAgVGhlCj4gc29ja19oYXNfcGVybSgpIGZ1bmN0aW9uIHVzZXMgY3VycmVudF9zaWQoKSBhcyB0 aGUgc3ViamVjdCBpbiB0aGUKPiBhdmNfaGFzX3Blcm0oKSBjYWxsLCBhbmQgaW4gdGhlIHNvZnRp cnEgY2FzZSB0aGF0IGlzIG5vdCB3aGF0IHdlIHdhbnQuCgpIYWQgYSBsb29rIGF0IHRoaXMuIFRo ZSBBU0NPTkYgc29mdGlycSBwYXRoIGlzOgoKICBzY3RwX3JjdigpICBbTkVUX1JYIHNvZnRpcnFd CiAgICAtPiBzY3RwX3Byb2Nlc3NfYXNjb25mKCkKICAgICAgLT4gc2N0cF9wcm9jZXNzX2FzY29u Zl9wYXJhbSgpCiAgICAgICAgLT4gc2VjdXJpdHlfc2N0cF9iaW5kX2Nvbm5lY3Qoc2ssIFNDVFBf UEFSQU1fQUREX0lQL1NFVF9QUklNQVJZKQogICAgICAgICAgLT4gc2VsaW51eF9zY3RwX2JpbmRf Y29ubmVjdCgpCiAgICAgICAgICAgIC0+IHNvY2tfaGFzX3Blcm0oKQogICAgICAgICAgICAgIC0+ IGF2Y19oYXNfcGVybShjdXJyZW50X3NpZCgpLCBza3NlYy0+c2lkLCAuLi4pCgpJbiBzb2Z0aXJx LCBjdXJyZW50IGlzIHdoYXRldmVyIHByb2Nlc3Mgd2FzIGludGVycnVwdGVkLCBzbyB0aGUgc3Vi amVjdApTSUQgaXMgZWZmZWN0aXZlbHkgcmFuZG9tLiBNZWFud2hpbGUgdGhlIHBvcnQvbm9kZSBi aW5kIGNoZWNrcyBmdXJ0aGVyCmRvd24gaW4gX19zZWxpbnV4X3NvY2tldF9iaW5kKCkgYW5kIHRo ZSBwb3J0IGNvbm5lY3QgY2hlY2sgaW4Kc2VsaW51eF9zb2NrZXRfY29ubmVjdF9oZWxwZXIoKSBh bHJlYWR5IHVzZSBza3NlYy0+c2lkIGFzIHRoZSBzdWJqZWN0LAp3aGljaCBpcyB0aGUgZXN0YWJs aXNoZWQgcGF0dGVybiBmb3Igc29mdGlycSBjb250ZXh0CihzZWxpbnV4X3NvY2tldF9zb2NrX3Jj dl9za2IsIHNlbGludXhfc2N0cF9hc3NvY19yZXF1ZXN0LCBldGMuKS4KClRoZSBhcHByb2FjaCBJ IHdvdWxkIHN1Z2dlc3Q6IHRocmVhZCBhbiBleHBsaWNpdCBzdWJqZWN0IFNJRCBpbnRvIHRoZSBp bm5lcgpoZWxwZXJzLiBzZWxpbnV4X3NjdHBfYmluZF9jb25uZWN0KCkgd291bGQgcGFzcyBza3Nl Yy0+c2lkLCBhbmQgdGhlCnByb2Nlc3MtY29udGV4dCB3cmFwcGVycyAoc2VsaW51eF9zb2NrZXRf YmluZCwgc2VsaW51eF9zb2NrZXRfY29ubmVjdCkKd291bGQgcGFzcyBjdXJyZW50X3NpZCgpLiBU aGF0IGtlZXBzIHNvY2tfaGFzX3Blcm0oKSBzZW1hbnRpY3MKdW5jaGFuZ2VkIGZvciB0aGUgbm9y bWFsIHBhdGggYW5kIG1ha2VzIHRoZSBTSUQgY2hvaWNlIHZpc2libGUgYXQgZWFjaApjYWxsIHNp dGUuCgpJIGNhbiBzZW5kIGEgcGF0Y2ggZm9yIHRoaXMgaWYgdGhpcyBhcHByb2FjaCB3b3JrcyBm b3IgeW91LgoKLS0KVHJpc3Rhbgo=