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 07B391AB36B for ; Thu, 20 Jun 2024 11:17:23 +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=1718882243; cv=none; b=c0Hyh4aHtWPmzniYZtlAR8/8M4u4BJRcL14PHUCk5lDUk+1lX2H+HyvGXAxBwHxU3O0i9jnT8XRRKX/6RXcMDdhbU4aEeoAOxBosDa9pQAZQqBc5bWHVQZka4HE95H6Z8O/VVXyDf+JqLX5CCM+ThKgkwNvwEf6jzbBuXQbA3bI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718882243; c=relaxed/simple; bh=6xMXDWBQBJVhOv651G7CtiTZelOU1dXh9WZx0mmI8XA=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=W21A1tsdJRBAgfLDn8LH1dCWSv1oYfY4iiXnR68xdJGav3xrmaNLDudYWz7W5IZVgINSIm5S2tWKY1L62Sqwc99fQLzGtweoL20+7A3tM7H+AK+0RxQCGL+pxQCQZteYGRPe++t7PqjusMUJw8WQREmB2eybYa8D9fJcCcf4Z6o= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=TtYm+fqR; 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="TtYm+fqR" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 81251C2BD10; Thu, 20 Jun 2024 11:17:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1718882242; bh=6xMXDWBQBJVhOv651G7CtiTZelOU1dXh9WZx0mmI8XA=; h=From:To:Cc:Subject:Date:Reply-to:From; b=TtYm+fqR7H53EIRFCFv3UVDNDRnUPUjDDTC9rR5p3bYN90F8syA6C4s9vtkG0rDa4 Tmifr2vY25hGEDdzYxNMCY6prNaKZUmQ+wv5QWgfG2Xb1cy0CgHXcdcCjoIVFbFieH uIvaWzR3yIn8QdnEYHM1OfvTqfXElEQDEjchWjCk= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2022-48741: ovl: fix NULL pointer dereference in copy up warning Date: Thu, 20 Jun 2024 13:16:21 +0200 Message-ID: <2024062002-CVE-2022-48741-cdd7@gregkh> X-Mailer: git-send-email 2.45.2 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=1923; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=6xMXDWBQBJVhOv651G7CtiTZelOU1dXh9WZx0mmI8XA=; b=owGbwMvMwCRo6H6F97bub03G02pJDGkl/EW/BWZrKx8w/n1yXWBJvHSFd1acqh3DVRW9Qz7Nr BOv+c/uiGVhEGRikBVTZPmyjefo/opDil6Gtqdh5rAygQxh4OIUgIm8ZmGYn3EthWPy0+ufkiRS Ny7yOMbru+aDLcM861cC3BZ8tho7Km7czG342/647sY3AA== 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: ovl: fix NULL pointer dereference in copy up warning This patch is fixing a NULL pointer dereference to get a recently introduced warning message working. The Linux kernel CVE team has assigned CVE-2022-48741 to this issue. Affected and fixed versions =========================== Issue introduced in 5.15.3 with commit 5cffa333a2b2 and fixed in 5.15.20 with commit e6b678c1a367 Issue introduced in 5.16 with commit 5b0a414d06c3 and fixed in 5.16.6 with commit 9c7f8a35c5a8 Issue introduced in 5.16 with commit 5b0a414d06c3 and fixed in 5.17 with commit 4ee7e4a6c9b2 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-2022-48741 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: fs/overlayfs/copy_up.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/e6b678c1a3673de6a5d2f4e22bb725a086a0701a https://git.kernel.org/stable/c/9c7f8a35c5a83740c0e3ea540b6ad145c50d79aa https://git.kernel.org/stable/c/4ee7e4a6c9b298da44029ed9ec8ed23ae49cc209