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 30CF335AAD2 for ; Thu, 11 Sep 2025 16:54:01 +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=1757609641; cv=none; b=YWfDkwaBQ605/LNkV2SqGdVsZXGD53xpdXbztni4u4IYbUflQhRi1zWce2uRrAemVAAHGo50ez6Vwrhx6Mzh+KFRddUTHKUSe/YOdjgB1TJvnyf9VKy+UjBAC3ilhCGU4Px/xF1hFyN1EWoSAVdNC5gfiDbKGSCeiobPC1hlYUQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1757609641; c=relaxed/simple; bh=ZXLDkguqsyUEIzVBH17i4AXq97NZCKSEc9Azp6e1zns=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=tBn81hSekMgkITpbE8k4bjOHqLQgSagmESvj+/MqGlFA9DTWWLHv4Iedt7rBAbpV1JgEfcU9k6JXUtzglSd6AFspawhRZEFe8Y4pTniI8/xdXhgKg2joAAoWhmOjCUAyxX7jmECtjlJW/emETsk6PxjirSj92BRvEiaqEIuAKvg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=SxiJ9w1L; 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="SxiJ9w1L" Received: by smtp.kernel.org (Postfix) with ESMTPSA id AE2C2C4CEF0; Thu, 11 Sep 2025 16:54:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1757609641; bh=ZXLDkguqsyUEIzVBH17i4AXq97NZCKSEc9Azp6e1zns=; h=From:To:Cc:Subject:Date:Reply-to:From; b=SxiJ9w1L24wzAZ1Q0Ffr2U57WLjwhXW0F+uWToRO7WiUnu/giwnbR/TkwtuorwMu5 tup8v76VX9oTlymfPsnllgtMUbyngz6e7JJqm/fTV/iEwpB4e5dk5yX0XfT3ZFaJYq VFJuZN4XBd/GuF/apmM9AZ2/hb6TLxw7EnejCoYE= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2025-39757: ALSA: usb-audio: Validate UAC3 cluster segment descriptors Date: Thu, 11 Sep 2025 18:52:57 +0200 Message-ID: <2025091144-CVE-2025-39757-e212@gregkh> X-Mailer: git-send-email 2.51.0 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=3604; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=Rkeu8OC+efzvsjhvAICqVJkeVbi4PzTSFtXkV/Vlpv0=; b=owGbwMvMwCRo6H6F97bub03G02pJDBmH/sVYbbv9Q13wLJeUlRRLx/nnGi6ZbJEsQrannVQs7 i/wsorpiGVhEGRikBVTZPmyjefo/opDil6Gtqdh5rAygQxh4OIUgIlMY2ZYsEq9tsiCyeRyII9l ammwZ360QuxqhgUbCncu09afe2Xj2zkCVheWTj2TuXQaAA== X-Developer-Key: i=gregkh@linuxfoundation.org; a=openpgp; fpr=F4B60CC5BF78C2214A313DCB3147D40DDB2DFB29 Content-Transfer-Encoding: 8bit From: Greg Kroah-Hartman Description =========== In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Validate UAC3 cluster segment descriptors UAC3 class segment descriptors need to be verified whether their sizes match with the declared lengths and whether they fit with the allocated buffer sizes, too. Otherwise malicious firmware may lead to the unexpected OOB accesses. The Linux kernel CVE team has assigned CVE-2025-39757 to this issue. Affected and fixed versions =========================== Issue introduced in 4.19 with commit 11785ef53228d23ec386f5fe4a34601536f0c891 and fixed in 5.4.297 with commit 799c06ad4c9c790c265e8b6b94947213f1fb389c Issue introduced in 4.19 with commit 11785ef53228d23ec386f5fe4a34601536f0c891 and fixed in 5.10.241 with commit 786571b10b1ae6d90e1242848ce78ee7e1d493c4 Issue introduced in 4.19 with commit 11785ef53228d23ec386f5fe4a34601536f0c891 and fixed in 5.15.190 with commit 275e37532e8ebe25e8a4069b2d9f955bfd202a46 Issue introduced in 4.19 with commit 11785ef53228d23ec386f5fe4a34601536f0c891 and fixed in 6.1.149 with commit 47ab3d820cb0a502bd0074f83bb3cf7ab5d79902 Issue introduced in 4.19 with commit 11785ef53228d23ec386f5fe4a34601536f0c891 and fixed in 6.6.103 with commit 1034719fdefd26caeec0a44a868bb5a412c2c1a5 Issue introduced in 4.19 with commit 11785ef53228d23ec386f5fe4a34601536f0c891 and fixed in 6.12.43 with commit ae17b3b5e753efc239421d186cd1ff06e5ac296e Issue introduced in 4.19 with commit 11785ef53228d23ec386f5fe4a34601536f0c891 and fixed in 6.15.11 with commit dfdcbcde5c20df878178245d4449feada7d5b201 Issue introduced in 4.19 with commit 11785ef53228d23ec386f5fe4a34601536f0c891 and fixed in 6.16.2 with commit 7ef3fd250f84494fb2f7871f357808edaa1fc6ce Issue introduced in 4.19 with commit 11785ef53228d23ec386f5fe4a34601536f0c891 and fixed in 6.17-rc2 with commit ecfd41166b72b67d3bdeb88d224ff445f6163869 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-2025-39757 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/usb/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/799c06ad4c9c790c265e8b6b94947213f1fb389c https://git.kernel.org/stable/c/786571b10b1ae6d90e1242848ce78ee7e1d493c4 https://git.kernel.org/stable/c/275e37532e8ebe25e8a4069b2d9f955bfd202a46 https://git.kernel.org/stable/c/47ab3d820cb0a502bd0074f83bb3cf7ab5d79902 https://git.kernel.org/stable/c/1034719fdefd26caeec0a44a868bb5a412c2c1a5 https://git.kernel.org/stable/c/ae17b3b5e753efc239421d186cd1ff06e5ac296e https://git.kernel.org/stable/c/dfdcbcde5c20df878178245d4449feada7d5b201 https://git.kernel.org/stable/c/7ef3fd250f84494fb2f7871f357808edaa1fc6ce https://git.kernel.org/stable/c/ecfd41166b72b67d3bdeb88d224ff445f6163869