From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 C4A393F20FA for ; Fri, 4 Sep 2026 15:13:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788534805; cv=none; b=ruyoPCccSbBPYh0v8YC8NtOMPeMwoymKWPEen2yKNsmYV4R0NYVDlWLTEHXv1JXXCq0DX3bsnf+v62I+WZNz+DxNgonJx05zXw0smHEPY3VeeNn2f6lbrRDf9pv38xtn8211BNRZvX6Jz+a7nYl/VW9AxNwpqp28QYSC7TBKhrM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788534805; c=relaxed/simple; bh=UgzpTh9Fx+3zD549uWJyyxHd9oLcYb8oynLJrSP+vDA=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=dnJMu6sLrwdJRYIkZFgplIBptL5ejaEG3v/08Um10vioRa1IXGpBi+SaeEIpjwl7prEs2Qju3vt5po2a4QmfAEBPOgfCWBTeUVRnTMWY813Xro1fqXciqFGBLku7Kud/cJCgfVsCSQnJdhj5Kf7Mi/mlwV/o5wLv5DUW7blVa+Y= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=RFWlCcdl; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="RFWlCcdl" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 73E091F00A3D; Fri, 4 Sep 2026 15:13:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1788534803; bh=bNcW3340FoU+kgM51aTvm2nMuKKN/Z+gZo68y1iyNfI=; h=From:To:Cc:Subject:Date:Reply-To; b=RFWlCcdl0LFVQgxQMvtBjZa1rG8KJSCrxo6j0vbaOM09Wq764zBKmvmJp2Vld3fzW JKeoO/lmxiJenSAWV5PuHVtEgC37UJKKow4+iK0uULKlzrC9R01H6ATOxfMgbqIdrT 9/+wHOdePOr9Vem0CV1wagSKB53R1t9rN7F65WK4= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-80759: Bluetooth: hci_aml: validate firmware segment lengths Date: Fri, 4 Sep 2026 17:10:58 +0200 Message-ID: <2026090459-CVE-2026-80759-2dfb@gregkh> X-Mailer: git-send-email 2.55.0 Reply-To: , Precedence: bulk X-Mailing-List: linux-cve-announce@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=2886; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=0fYG2VzZQJ2zq/96io1AbmHAH6rRFORd/RNKf4Cbtkg=; b=owGbwMvMwCRo6H6F97bub03G02pJDFmz7jdfUl967fpp4V3F0lVq1j/uiXQ+4PAx3yq5rGaT0 4ZV0t//dcSyMAgyMciKKbJ82cZzdH/FIUUvQ9vTMHNYmUCGMHBxCsBEEn4yzHe4n+/57WmXq4jX xYX3/maFpqw+tJdhQSuPnekVw74iBsslHvs9XLZ+D38mAQA= 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: Bluetooth: hci_aml: validate firmware segment lengths aml_download_firmware() reads two lengths from the firmware header and uses them to build pointers before checking that the header and segment data are present. A truncated or inconsistent firmware image can make the driver read past firmware->data while constructing TCI commands. Reject images shorter than the header and ensure that the ICCM and DCCM ranges fit within the loaded firmware before downloading either segment. The Linux kernel CVE team has assigned CVE-2026-80759 to this issue. Affected and fixed versions =========================== Issue introduced in 6.12 with commit 37bac77e4649e8158698a60addc22ec4faf5649a and fixed in 6.12.106 with commit 7733b01ed13685773ccda91035a46f87d4cfef7c Issue introduced in 6.12 with commit 37bac77e4649e8158698a60addc22ec4faf5649a and fixed in 6.18.47 with commit e1534d49a7b8ba728e84b020f6d802aa1cb759d9 Issue introduced in 6.12 with commit 37bac77e4649e8158698a60addc22ec4faf5649a and fixed in 7.1.11 with commit 6c70253462902d835e843b470f74aa816d60af80 Issue introduced in 6.12 with commit 37bac77e4649e8158698a60addc22ec4faf5649a and fixed in 7.2.1 with commit 2763b8bcb504e30ec955474f51b99ce42fc62f3b Issue introduced in 6.12 with commit 37bac77e4649e8158698a60addc22ec4faf5649a and fixed in 7.3-rc1 with commit 2bf6b9baca9372ea51b6d0f2820dc9bf29a83ef4 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-2026-80759 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/bluetooth/hci_aml.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/7733b01ed13685773ccda91035a46f87d4cfef7c https://git.kernel.org/stable/c/e1534d49a7b8ba728e84b020f6d802aa1cb759d9 https://git.kernel.org/stable/c/6c70253462902d835e843b470f74aa816d60af80 https://git.kernel.org/stable/c/2763b8bcb504e30ec955474f51b99ce42fc62f3b https://git.kernel.org/stable/c/2bf6b9baca9372ea51b6d0f2820dc9bf29a83ef4