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 CBDC23033EB for ; Thu, 27 Aug 2026 05:18:07 +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=1787807888; cv=none; b=H/YTnevFeyCKKVa5vi389wCmpmTCbxOGvHEWLhVdGD/ADBd/OgG6A942BlPDFiMMNcZ0nSJcgT8WMCghhMaXAAzdQwDMoAExZGwUjDn8Ew88WLBR0nBypZ6XALrSsMHrTKT22vH5OH1GrthXM0/Uu4OynNj6ZQwW1rPEvRsfTow= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787807888; c=relaxed/simple; bh=q2ycZS+3qsPzKlpJa5pTchjHgU2fFM6zDIAm2NjEb4s=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=DBlJbSpsChVxA3jyaSa6ojrdBK2WJ9DgsvWkEpUR0bgDm332lsDycifckP2F/nVB3+63Qhmfc/A4Zh8XYmHJ1CYreaOLOUeoJNuPxdsKJUOhaVFoJ3p05O/sjAF5FVKoOSHbP9ElTaTAjVbvTlSrPG522K11CIP1zVAZ0k2PScc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=c9PM4Bna; 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="c9PM4Bna" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4EEE41F00A3A; Thu, 27 Aug 2026 05:18:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1787807887; bh=8kdaO6JMaHGdH/9FU5AxYt4B1ujmxHXLjx6HBknWj34=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=c9PM4BnawZ5/L1KXHkSDZ6eq/dyQRINqqLuq0k3wEqR63NRkuRHO8X6R91QhZOvjg wgSyc1Ddgh2ISHEt4h/FVM8Fw0wEWutI7zlzkH5b1qHQScnN4ZICmKbauBavakR/rO LAMbSZybStcNHWXGpnO/e4Ay5Bo1t5hQLviC8FYdN9v1CzcKhZwwwYFHBw+rOdfuEM Wm0jfMPoUh4ZFpXqr+aX2kjrIWGvyXj4XQNcT+Y7HK7Y6bIDZw+IkY/QzeuQUCDGyT 3cUSJbLxbtGK1tuiFok5ptzEkLoKRS13ZN+ylTorXFz9XBIaolzNIpdYw0lqLblhmC bywLIKYZAlJhw== From: Sasha Levin To: stable@vger.kernel.org Cc: Sasha Levin , Roman Demidov Subject: Re: [PATCH 5.10] ipv6: mcast: Fix use-after-free when processing MLD queries Date: Thu, 27 Aug 2026 01:17:57 -0400 Message-ID: <20260827050834.10007.stable-daily@kernel.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260826074010.9256-1-roman.demidov.nn@gmail.com> References: <20260826074010.9256-1-roman.demidov.nn@gmail.com> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit > commit 791c91dc7a9dfb2457d5e29b8216a6484b9c4b40 upstream. > > When processing an MLD query, a pointer to the multicast group address > is retrieved when initially parsing the packet. This pointer is later > dereferenced without being reloaded despite the fact that the skb header > might have been reallocated following the pskb_may_pull() calls, leading > to a use-after-free [1]. Queued for 5.10, thanks. -- Thanks, Sasha