From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id F321941BA77; Wed, 16 Sep 2026 19:28:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789586943; cv=none; b=PyWjSGOMNm/DsjrhFsYzSaw5dNt81+D5AyfGFNKdCHdOqBBCjazL2ZORZlLxfsplXSzdtiyjrZA35ACFDcYsfbAiKhKySpnHR04SbRlIMFe1wKhKUm7cayz5+mBld9RoGFLCLXRx72bxaZO/TytgiU7mGqwZ5dtr3aX7oKStU7k= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789586943; c=relaxed/simple; bh=k2WRkj8SWVykjQdgedUIsiIX+XkVRn9Yqh+BEsejjDA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Irb5POEhPhbK+ai8V/KTGL3x72+xzue7MVFhcbryLywzdtmHAqAuYMNuFDkg2EV7jW1ct7lSXf2Aj1e3xbVP0AcWSZkzc5lvcdiW/KU9JhH8sSCKUNCMB4Axg6TEmOwN/7FoqF3Hf9Ga0nOwrD6vxuOa/Md0l0E+6PkY40alDFM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=VlB7w5nr; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="VlB7w5nr" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 65FE41F008A1; Wed, 16 Sep 2026 19:28:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1789586915; bh=GvhbdK8ZcVLJK5U74dIkP1qNpkB1t+1sjVogZhS9BUk=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=VlB7w5nr1V8O8g29xLMR3G/j8JFEobjFVvI9dg1u0TmPu0/ewiv+Pr31Eq981Okbz EQIgG4PTx5rYKyaBKAZ89Pyj9pZ4Z3E1RImLU5W23cHsDaMtdjH9ulXB8oVUuU64fe CLkKYjigZFHttwPz18TaQHuU8A74qX58CVdrHRElKY18tk4KpuIjlQcdRfJ8/XAcWa OCfZo9lCR+wy/dgC4fWD+xGsU9ssHeRvT4Ldhk7UAsIJ4JsP2Lje3OeZ8dBZLxEOEq zl7rBTLupqct0SPo8SNNH5LHSz8HajNmYyEelVh6Fjk6ClZTpDMHY7a1oUEqB/uQsP 2GX+1R9cSaRJw== From: Sasha Levin To: stable@vger.kernel.org Cc: Sasha Levin , netdev@vger.kernel.org, Eric Dumazet , David Ahern , Kuniyuki Iwashima , Jakub Kicinski , Shun Ota Subject: Re: [PATCH 5.10.y 5.15.y 6.1.y] ipv6: mcast: extend RCU protection in igmp6_send() Date: Wed, 16 Sep 2026 15:27:58 -0400 Message-ID: X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260916081232.326250-1-shun.ota@miraclelinux.com> References: <20260916081232.326250-1-shun.ota@miraclelinux.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit > [ Upstream commit 087c1faa594fa07a66933d750c0b2610aa1a2946 ] > > igmp6_send() can be called without RTNL or RCU being held. > > Extend RCU protection so that we can safely fetch the net pointer > and avoid a potential UAF. Queued for 6.1, 5.15 and 5.10, thanks. -- Thanks, Sasha