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 A33FD145355 for ; Tue, 21 May 2024 15:37:16 +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=1716305836; cv=none; b=HH5d6jUQyf3qN77wgohl0shdJp+G4DiqCkem4fUbdDWjC/kxYFfiDVrGuO1istH0hwhOIa58t53JuovI7FecHfn5tx/Ovvt/sJOKdiPoGy7Z3jOAiRMjrgWXuhqKHp7LzbqUcg7dqoJSYLxGX20521j8KeP7oJAAz9ab7th+b7g= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716305836; c=relaxed/simple; bh=vTd+JobSRBobDfwQ4BRm3tK50mvPIqGXk77l0ZlufJY=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=ZKw2UvpXG4ksPA9TGGwfFmHq+dleGTeEeYbrPMkYGIvo1Fq1fl7IWERvWxiVBwfZUXuGw+cgN7r8lKDnHAZotyGgDINcr0QxJn55Rzjun/mr5eYUBgYK2pBdjRtRwIsr7HeTScrOZFbY3bsDUJp/PrbpbAgoVyY+i3yo0dbfiWA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=e8ZQuO0u; 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="e8ZQuO0u" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E13ACC32789; Tue, 21 May 2024 15:37:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1716305836; bh=vTd+JobSRBobDfwQ4BRm3tK50mvPIqGXk77l0ZlufJY=; h=From:To:Cc:Subject:Date:Reply-to:From; b=e8ZQuO0uv6l1AEn907K5zk/d3yJMEjH55LHMbcf/BAS6jc8NU2UdGZlt0vs+ivydt vRQvNN9XaQ/05JUO9BvARyrH4fmhFwMxacWj+BFvAKhiUrucaHcSvshgfAKElGfpzK AOB4LYu30pHb2qeuD0l+D7UW1wj7l39zR21LPDTI= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2023-52806: ALSA: hda: Fix possible null-ptr-deref when assigning a stream Date: Tue, 21 May 2024 17:31:42 +0200 Message-ID: <2024052101-CVE-2023-52806-e9ee@gregkh> X-Mailer: git-send-email 2.45.1 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=2639; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=vTd+JobSRBobDfwQ4BRm3tK50mvPIqGXk77l0ZlufJY=; b=owGbwMvMwCRo6H6F97bub03G02pJDGk++0zNbj8PTzj33knMd8pdgcvWTsd/HJk5d+LcacF8o rX/ltzO6YhlYRBkYpAVU2T5so3n6P6KQ4pehranYeawMoEMYeDiFICJTD3LME/jym82jv93mO0+ xGjFBeoz/LH0FGeYp/pm+tGXCjMZP4mtrWLb87G/yNDvMgA= 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: ALSA: hda: Fix possible null-ptr-deref when assigning a stream While AudioDSP drivers assign streams exclusively of HOST or LINK type, nothing blocks a user to attempt to assign a COUPLED stream. As supplied substream instance may be a stub, what is the case when code-loading, such scenario ends with null-ptr-deref. The Linux kernel CVE team has assigned CVE-2023-52806 to this issue. Affected and fixed versions =========================== Fixed in 4.14.331 with commit 7de25112de82 Fixed in 4.19.300 with commit 758c7733cb82 Fixed in 5.4.262 with commit 2527775616f3 Fixed in 5.10.202 with commit 25354bae4fc3 Fixed in 5.15.140 with commit 631a96e9eb42 Fixed in 6.1.64 with commit 43b91df291c8 Fixed in 6.5.13 with commit fe7c1a0c2b25 Fixed in 6.6.3 with commit 4a320da7f7cb Fixed in 6.7 with commit f93dc90c2e8e 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-2023-52806 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: sound/hda/hdac_stream.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/7de25112de8222fd20564769e6c99dc9f9738a0b https://git.kernel.org/stable/c/758c7733cb821041f5fd403b7b97c0b95d319323 https://git.kernel.org/stable/c/2527775616f3638f4fd54649eba8c7b84d5e4250 https://git.kernel.org/stable/c/25354bae4fc310c3928e8a42fda2d486f67745d7 https://git.kernel.org/stable/c/631a96e9eb4228ff75fce7e72d133ca81194797e https://git.kernel.org/stable/c/43b91df291c8802268ab3cfd8fccfdf135800ed4 https://git.kernel.org/stable/c/fe7c1a0c2b25c82807cb46fc3aadbf2664a682b0 https://git.kernel.org/stable/c/4a320da7f7cbdab2098b103c47f45d5061f42edd https://git.kernel.org/stable/c/f93dc90c2e8ed664985e366aa6459ac83cdab236