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 10A80BA55 for ; Fri, 3 May 2024 17:46:03 +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=1714758364; cv=none; b=SsTFEZb+VdTb6j65XAMOl/ypiUrcVCs9cYC6wxBbsQV+yf/rUGNG46fKT1u+c2b1AFomeLVKy42sU7KoBp1vCCJWQmErgdYCMiBXuoC0khDG+AzWkR3RkTFerz0Osky8125Tk6Uo7kA1mAOXR+d2L57Qg+O37ShuKAf9KdSzJbM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1714758364; c=relaxed/simple; bh=LTPY0uyGozQqg34rS7xQcRzVmhQfFw/y6s2hQBZQIao=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=NC/OefJJBPiBi8nOTXZ5nK5dc0tgO/LsRRR6Tfloyvyn+yHx2rV19OVjGyTd53ujrsZbUQfOaGmFXGM1XM6TINy/zktBzYYhMNfX4pF2yE7znZseq0/GSkKDFtSiqzfmE1M2mcZwTnpSj+K2qHjxogWhDLahnHHErIugheyHenM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=uH6rSZi7; 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="uH6rSZi7" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 33240C116B1; Fri, 3 May 2024 17:46:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1714758363; bh=LTPY0uyGozQqg34rS7xQcRzVmhQfFw/y6s2hQBZQIao=; h=From:To:Cc:Subject:Date:Reply-to:From; b=uH6rSZi7wxGEXyv3SjVaWOqBPelTl/CwluubZ5CFiHthMzVHXgBLlNF/F//y5CdcD 9W4mFuz5HgBDWwRGUF6Ykqn75ZS+Zc0mEQh2RRl+RdevdGEp2KIktRGdjncQSf38F+ 5v4e2TTrJfDorNJPWB1zBCZxkl4Wno80eKvia7dg= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2022-48696: regmap: spi: Reserve space for register address/padding Date: Fri, 3 May 2024 19:45:52 +0200 Message-ID: <2024050348-CVE-2022-48696-b671@gregkh> X-Mailer: git-send-email 2.45.0 Precedence: bulk X-Mailing-List: linux-cve-announce@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Reply-to: , X-Developer-Signature: v=1; a=openpgp-sha256; l=2123; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=LTPY0uyGozQqg34rS7xQcRzVmhQfFw/y6s2hQBZQIao=; b=owGbwMvMwCRo6H6F97bub03G02pJDGmmSmdSTDs62R7aH2+ceElM9vs7N7PuRvb6627a2/69l 4tdfGBvRywLgyATg6yYIsuXbTxH91ccUvQytD0NM4eVCWQIAxenAEwkIIVhvu+GM7eiJjMsffUx o+H3bBPGgqtOMgzzHXLERVlvXnXtbLAzmRqXzjtl0xRjAA== X-Developer-Key: i=gregkh@linuxfoundation.org; a=openpgp; fpr=F4B60CC5BF78C2214A313DCB3147D40DDB2DFB29 Content-Transfer-Encoding: 8bit Description =========== In the Linux kernel, the following vulnerability has been resolved: regmap: spi: Reserve space for register address/padding Currently the max_raw_read and max_raw_write limits in regmap_spi struct do not take into account the additional size of the transmitted register address and padding. This may result in exceeding the maximum permitted SPI message size, which could cause undefined behaviour, e.g. data corruption. Fix regmap_get_spi_bus() to properly adjust the above mentioned limits by reserving space for the register address/padding as set in the regmap configuration. The Linux kernel CVE team has assigned CVE-2022-48696 to this issue. Affected and fixed versions =========================== Issue introduced in 5.16 with commit f231ff38b7b2 and fixed in 5.19.9 with commit 15ff1f17847c Issue introduced in 5.16 with commit f231ff38b7b2 and fixed in 6.0 with commit f5723cfc0193 Please see https://www.kernel.org for a full list of currently supported kernel versions by the kernel community. Unaffected versions might change over time as fixes are backported to older supported kernel versions. The official CVE entry at https://cve.org/CVERecord/?id=CVE-2022-48696 will be updated if fixes are backported, please check that for the most up to date information about this issue. Affected files ============== The file(s) affected by this issue are: drivers/base/regmap/regmap-spi.c Mitigation ========== The Linux kernel CVE team recommends that you update to the latest stable kernel version for this, and many other bugfixes. Individual changes are never tested alone, but rather are part of a larger kernel release. Cherry-picking individual commits is not recommended or supported by the Linux kernel community at all. If however, updating to the latest release is impossible, the individual changes to resolve this issue can be found at these commits: https://git.kernel.org/stable/c/15ff1f17847c19174b260bd7dd0de33edcebd45e https://git.kernel.org/stable/c/f5723cfc01932c7a8d5c78dbf7e067e537c91439