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 93B12371048 for ; Fri, 12 Jun 2026 14:41:24 +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=1781275285; cv=none; b=NXr7CX93Y6G1Wxsle7f7XgQAES1Z6QC65cBZYthMhhMF3s+T0r/BLQitegxpweMqV8Efj3C5teaqEp1HJuT2BcdSHGHdAD2R6F1kCfyWE5TDVNe/Xf6UCRGppvCLdFeSXbPQFoDz94hjmT19HbgwXlr6R1RzQKxeAHLhm7PmG5Y= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781275285; c=relaxed/simple; bh=IZHwMgvR7iqLgYv6719gt4wrdGsbCdFipyHP7Ua8eLQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=LEKOmrQdMOov3R6PX++utQaHk0saAg7qX/IWtPOBK8RGKL6LA3XAlzISEczfRcJB4JX3Elvja+nDX4FzuTAQ+fB+QOllaHbu5wJBNlRhDlR5gcxaf5FVmO9+YB1BvE8Y3OwAKbOUJnG5ei0cCPMqkIF9SMA7YTKbc7bvQBULLYE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=LOin+Qs0; 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="LOin+Qs0" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C2EA11F00A3E; Fri, 12 Jun 2026 14:41:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1781275284; bh=IZHwMgvR7iqLgYv6719gt4wrdGsbCdFipyHP7Ua8eLQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=LOin+Qs0+KK7jm7yHrrUuqTJkM4s9nQZutf2/ESsBWNX64ORiDYZ7yD5vqPCqSI8c CEXWl0lmbcpaD801tmrrqrNGwYfftOR9Eq9nZEqukhTklC/5/Ejm8ciU4VkaKMeunB Tku5hHpPoWoTsxNS+r7kEXQHcEWaBUJi+Xx1OAW1Inp8h3AGcWMOf6WxdsF5FcMnw+ xqgO6nCmLtFfaRdbm0JWLpRQfuAToyHGwIitMWziJn2Mu+M97XBWSvvhpX76j1C/pm 205pp9vVGrxmTgww11THmu48ZnwqGKt6UGVM52kQ9ZTi5YdFAxg50qDMMQZQcMWM1g 8LGtIR2UXVaEA== From: Sasha Levin To: stable@vger.kernel.org Cc: Sasha Levin , outbounddisclosures@openai.com, Kyle Zeng Subject: Re: [PATCH 6.12.y] bcachefs: validate disk group parent chains Date: Fri, 12 Jun 2026 10:41:17 -0400 Message-ID: <20260612-stable-reply-bcachefs-0004@kernel.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260611223835.73757-1-kylebot@openai.com> References: <20260611223835.73757-1-kylebot@openai.com> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit On Thu, Jun 11, 2026 at 03:38:35PM -0700, Kyle Zeng wrote: > Reject parent IDs outside the disk-group table, parents that reference > deleted groups, and cyclic parent chains before the groups are imported. > This prevents crafted superblocks from making the CPU conversion walk > past cpu_g->entries. Thanks for the fix. I can't queue this for stable, though: there's no upstream commit (bcachefs was removed from mainline after 6.12) and no maintainer Reviewed-by/Acked-by. I won't take a stable-only change for a removed subsystem without upstream presence or a maintainer ack. If you can get Kent to review and ack it, I'll reconsider. -- Thanks, Sasha