From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 455FD32D7DD; Mon, 27 Oct 2025 18:49:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761590949; cv=none; b=NMyAms8MNcmuY8DCeWelaah1OxO6dP48C7moyGXfJKNqnZwnbFQinN1PEArZbzSiDfRBN88y4WbJgLe8hd2RqvdAJLp8OHSQZnU75lgVBlSNF11IKsgFPkaY/eLABvEw1wi8CKgt3bxURfZJvIgDgx0bKAG35dGSP9H0El5Nux4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761590949; c=relaxed/simple; bh=w109jyVgLvnPcMArRNbn8RI9q/Z38ivVZL+rOK7AiFg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=AF3gxosN8MyGvNo2CQokA30hYZQdnnimkFt4+8w4SfjPZtAwXsXC0rhXAF3e7CUMbepp60z3KVpTYsRvJZRJWIzTNZLD3UsHvhXniq5+cNxAhavHSVbcQvA9D2M13v6VBpWPl8Q+MQwqPDNBrHtLzKCn4Vjywr0J0bqssVkVNgM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=l73HaiEF; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="l73HaiEF" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6ADC7C4CEF1; Mon, 27 Oct 2025 18:49:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1761590948; bh=w109jyVgLvnPcMArRNbn8RI9q/Z38ivVZL+rOK7AiFg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=l73HaiEFE4yxK5SIkABx5EQD9HZjryXWW77mECfcPFdXYFz6mqu7OqTyP3+MyiGrM I/5gppIk9FmHFxtC9vglv6iWoDqygcSc23gm5WuK0PsASl4x9CFEWHJdONtXzimyw4 Mwo0vvDhepsizSnoYfHfNP4A1UD45UTQCqAvgGuQ= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Mikulas Patocka , Sasha Levin Subject: [PATCH 5.10 010/332] dm-integrity: limit MAX_TAG_SIZE to 255 Date: Mon, 27 Oct 2025 19:31:03 +0100 Message-ID: <20251027183524.894529620@linuxfoundation.org> X-Mailer: git-send-email 2.51.1 In-Reply-To: <20251027183524.611456697@linuxfoundation.org> References: <20251027183524.611456697@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.10-stable review patch. If anyone has any objections, please let me know. ------------------ From: Mikulas Patocka [ Upstream commit 77b8e6fbf9848d651f5cb7508f18ad0971f3ffdb ] MAX_TAG_SIZE was 0x1a8 and it may be truncated in the "bi->metadata_size = ic->tag_size" assignment. We need to limit it to 255. Signed-off-by: Mikulas Patocka Signed-off-by: Sasha Levin --- drivers/md/dm-integrity.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/md/dm-integrity.c b/drivers/md/dm-integrity.c index 07a7b4e51f0ef..6e5627975cdf5 100644 --- a/drivers/md/dm-integrity.c +++ b/drivers/md/dm-integrity.c @@ -119,7 +119,7 @@ struct journal_sector { commit_id_t commit_id; }; -#define MAX_TAG_SIZE (JOURNAL_SECTOR_DATA - JOURNAL_MAC_PER_SECTOR - offsetof(struct journal_entry, last_bytes[MAX_SECTORS_PER_BLOCK])) +#define MAX_TAG_SIZE 255 #define METADATA_PADDING_SECTORS 8 -- 2.51.0