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 458D32E090C for ; Tue, 16 Sep 2025 08:13:44 +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=1758010425; cv=none; b=Z9H0XB38nlNWwcwrMRbY4IwwQU2iNspkGP69wyjnoJXhlKqLCol3Qf23oNQdKzWPD/vJUerhCcS3YRSjao4RBzg3AjMSTdCRIkOrz8+jvHX7FBlbverl1CTY/DN61CkekdMsDyc5b6l+WcqUa9leEB/VPaq4qttbPYPLJHYSKlM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758010425; c=relaxed/simple; bh=qiuCM06JV1dU9W/Q/krmw7N0yYGNse+611hNu/pSNWQ=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=VrCaitC0Ob1ikm/EoLtImKa1Px8JHqV6ZmS3JQ5g3puvPzhed4mcWxsNTJvUWwW7CD6lcKvJs0mcSWsxgewEq/Id2Jo81VXcjGa8t0tRMhs2nxF0VPC01GkB07TgqVLOnu6horg4O7Jijh99mUn1+QlHQUggyHaWjXBSZCq8ulM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=Jvx0Io/w; 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="Jvx0Io/w" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5EB03C4CEEB; Tue, 16 Sep 2025 08:13:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1758010424; bh=qiuCM06JV1dU9W/Q/krmw7N0yYGNse+611hNu/pSNWQ=; h=From:To:Cc:Subject:Date:Reply-to:From; b=Jvx0Io/wZPMxbwGXSXEAZW7p+y59lroevgtC0ro0nnKCZ8gKzOUiFyaNi8FHvqMUl sJo+EDKjSW/2RbeABxyJZC7EM1lFhPSl539jcR81OW+zlCS9MWe+XqJsikk0gN6ZJH NOtaIIFaUeJOj4Eg7LYeMFJodKru3+8YQkS8JYWY= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2023-53293: Bluetooth: btrtl: check for NULL in btrtl_set_quirks() Date: Tue, 16 Sep 2025 10:11:43 +0200 Message-ID: <2025091626-CVE-2023-53293-73cb@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=2002; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=F8Y3KvptcecWaxOaCXZg1DCoCFjOeri2sJeCsMFXbak=; b=owGbwMvMwCRo6H6F97bub03G02pJDBknpde7+T6Yp6/399evuUteX3XacegqL3M7Q5vpb14Lh ujX63fs6IhlYRBkYpAVU2T5so3n6P6KQ4pehranYeawMoEMYeDiFICJaNYxLGi/m8bCdNVo3pUF tfNezdeV/2xu8IphnuKx7vQdy86xdFVM22uR2xXVs1GiGQA= 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: btrtl: check for NULL in btrtl_set_quirks() The btrtl_set_quirks() has accessed btrtl_dev->ic_info->lmp_subver since b8e482d02513. However, if installing a Realtek Bluetooth controller without the driver supported, it will hit the NULL point accessed. Add a check for NULL to avoid the Kernel Oops. The Linux kernel CVE team has assigned CVE-2023-53293 to this issue. Affected and fixed versions =========================== Fixed in 6.1.30 with commit ea160ece08668a30ce69f92cc08e87da54a64a9c Fixed in 6.3.4 with commit c34722f0bb9f7efb0e7e7a75a9cb57601132b51f Fixed in 6.4 with commit 253cf30e8d3d001850a95c4729d668f916b037ab 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-2023-53293 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/btrtl.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/ea160ece08668a30ce69f92cc08e87da54a64a9c https://git.kernel.org/stable/c/c34722f0bb9f7efb0e7e7a75a9cb57601132b51f https://git.kernel.org/stable/c/253cf30e8d3d001850a95c4729d668f916b037ab