From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj2-f13.google.com (mail-pj2-f13.google.com [74.125.227.141]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 27AFF282F34 for ; Fri, 18 Sep 2026 22:35:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.227.141 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789770911; cv=none; b=WL0NXtyVMNuck7Qz7r3foVmG6OGJcVwcnw8DnYv0pwV1122KTpztPX6Ymh8QQnbPdN95aDy6ZnKYDm+tXpH5upq4dI4znNum+cKp+y043Ar8pg10oiGSFgSbml3guOIR4XUsiI1gs/HitvR/E9MjNaN25JtQ5T6r/83OdrOoJF4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789770911; c=relaxed/simple; bh=xb3is1fg4psSzmWQVGNvDz1BjKNyE4uEP1bxnTlEH8A=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=alp64TKsqoL4wtZ8sN52oAzwp+mrd7KjfuJY3zJqNx3ZNN4hnHia6/mYFQNuI0WjA9e+E/E/p7L4cEgySLqtI+k1sVmejhbAoJo1x8+oKmhNKn1VHhJ77SleeqiUtJxqpXNwzfj+5XKyvE6WNt2uUMt+AWDhHQWe3CP1cMkrgDw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=o728Ieje; arc=none smtp.client-ip=74.125.227.141 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="o728Ieje" Received: by mail-pj2-f13.google.com with SMTP id 98e67ed59e1d1-396ccb1a98fso1177524a91.1 for ; Fri, 18 Sep 2026 15:35:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1789770909; x=1790375709; darn=vger.kernel.org; h=in-reply-to:content-disposition:content-type:mime-version :references:message-id:subject:cc:to:from:date:from:to:cc:subject :date:message-id:reply-to:content-type; bh=D06tmXj1uCfo6BIbxIXyOm4hxr/YiUTBkFpE3eRGCw0=; b=o728Ieje85fiV2UpC+/ha0mSSzmSr50+AW4ZUZErNf8FkinKLRZfwibZUmlMw7KUMH 2rnZN0e0XHnZjgl3kr/Q9CF0ec0EqgYdTJfo3fZz97bF9Rfpp/QWtl3JKgdRZtKDSX/y TOkJy0PBUAG+ef9FnN8Ww/NB+hHL/BeY7DJP3LjWTzE1I2x6wAGd2PAGEqwPF853Xa6L 8rqw+0RmaCIxDu2Oj5cYb/a+QiQlZEY75/y7kIDy5JpP92QF5J5+seI/Sp1B3P8QMANB fZJwD1PsDUBARBND45bqZYwtDr31Luo4J4QtApXNuDzsrfakuC+zCB93XeeB6DWvAmye QCdQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1789770909; x=1790375709; h=in-reply-to:content-disposition:content-type:mime-version :references:message-id:subject:cc:to:from:date:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=D06tmXj1uCfo6BIbxIXyOm4hxr/YiUTBkFpE3eRGCw0=; b=W2iT/ROloONNEX8tFtmS/tHjFXKzrJtHLGwea6xSnhIMoJ/fLj5TnkbuLTAoa0zppa pQ9eY7HFGjzUm6UiX54nSFuKlcUagTstmGfnTparmhGnnZXhZu0z78A9WJoMDM+XehQb 49alK2aPuuzUld3liHDXt3H0y6YzdTdMAAgl4eN227RuhOduuUYB2WR3J2RdfvIM8X7q 3kWVhG5GfwYd2Db3G7YU+pfU0g0qt+ydk/4fVNeE0VvH4Nc3X9ccgvG74faEfuhIhYHv +WPmD3eChLZwxOWF3ORCI5BSM73jDKs5R0LHBn7GOZX5mOOXQ8IfDdOHzYbonEWY/d8Q U39Q== X-Forwarded-Encrypted: i=1; AKwUvByEsnqD6aZtRTRpiOhoUg0fJTLi8AInehorycAPc8rkD0mUivsDiWsSj/wRCZ+8bBydE3vC5vE=@vger.kernel.org X-Gm-Message-State: AFuF++mAxYrItc06Nzdhwk4HZzxMt9sMBMTy1FcfZzfHqQjEYL3uRgGA b5+rbiE7c+Jei0mg55X2En3g357+y7xG6XeL0d3pY5JdmtjelgXWXNvkwoM51w== X-Gm-Gg: AYBFou19U/Tl+6NHl3WgdkCoqdvtE6edHbfF9hPp16g17ydewc3E0ujLQ2rTUIdMWJh JG1VbexUZfiSWWXDWO9Q6EknC7C66B2JC5VEYjpQeN5yy1tF0ZtWqGAp/CiaY+YiqNtPmwF7DSq NMzars6/rjQDBHRNT/x708WRVmFSOfWNi4FmZVbc5IkiQfuVTucceIMD3ClBHFRY+OswfCM646S KXo94xid7s19MxXD0t4DUvB3EuzSsXgrGRd94nJXFNbcZKI8fn309QR93HGarWrJVkk/VNbQ/P1 vsnfeCMsZZbBE0XILtxEyNotyuuATQZ8OVfsmuhT+JSzkZVT0+FKipzVBTkYEXhykDAIAkpnXJ3 vgoIjr4cKOuK8vTzn11iOy6ku/rbvlvxqcrZutAH40WUCzU9aZlJ7bKs69ikASTdKY5I5NVvds/ NOKeVhJ8kEz5pMSpglE0AsqmdhJKfTDFlGMITAD4SvbbPWvy+z7boLSjqOwEhnnsjDy5czNlB7k pkwBgg/UQVRxdrtEw== X-Received: by 2002:a17:90b:134f:b0:39d:febe:7460 with SMTP id 98e67ed59e1d1-39e54d3651cmr7716214a91.22.1789770909387; Fri, 18 Sep 2026 15:35:09 -0700 (PDT) Received: from v4bel ([58.123.110.97]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-39e6c379c4bsm1375753a91.7.2026.09.18.15.35.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 18 Sep 2026 15:35:09 -0700 (PDT) Date: Sat, 19 Sep 2026 07:35:05 +0900 From: Hyunwoo Kim To: Kuniyuki Iwashima Cc: "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Neal Cardwell , Willem de Bruijn , David Ahern , Ido Schimmel , Simon Horman , Kuniyuki Iwashima , netdev@vger.kernel.org, imv4bel@gmail.com Subject: Re: [PATCH v1 net-next 0/2] net: Disallow buggy TCP transitions and IPV6_ADDRFORM. Message-ID: References: <20260904033543.2635540-1-kuniyu@google.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260904033543.2635540-1-kuniyu@google.com> On Fri, Sep 04, 2026 at 03:35:27AM +0000, Kuniyuki Iwashima wrote: > The following operations have recently received a lot of AI-driven > bug reports: > > * listen() + shutdown() + connect() > * connect() + connect(AF_UNSPEC) + listen() > > * setsockopt(IPV6_ADDRFORM) > > They are not worth fixing by churning the fast path, so this series > disallows the transitions and removes IPV6_ADDRFORM. > > https://lore.kernel.org/netdev/CANn89i+px52TtJy3S9=uHxGj3s-WueguRo1Z_4FxO=02KLmwmQ@mail.gmail.com/ > https://lore.kernel.org/netdev/5832ba17-c096-4f07-aa73-2e2bb6f79856@redhat.com/ > > I did not add Fixes tags, but if we want to backport, the tag > would be: > > Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Hi netdev maintainers, What is the plan for stable backports here? Does the uapi change rule this series out for stable? > > > Kuniyuki Iwashima (2): > tcp: Do not allow buggy transitions between ehash and lhash2. > ipv6: Remove IPV6_ADDRFORM. > > include/linux/net.h | 2 +- > include/net/inet_connection_sock.h | 1 + > net/core/sock.c | 4 +- > net/ipv4/af_inet.c | 3 -- > net/ipv4/inet_connection_sock.c | 1 + > net/ipv4/inet_hashtables.c | 11 ++++ > net/ipv6/af_inet6.c | 4 -- > net/ipv6/ipv6_sockglue.c | 87 ------------------------------ > 8 files changed, 15 insertions(+), 98 deletions(-) > > -- > 2.55.0.1003.g10538fe699-goog > Best regards, Hyunwoo Kim