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 1F498219A91 for ; Wed, 26 Feb 2025 02:15:49 +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=1740536149; cv=none; b=H/Acnuvltf9P9SoecKsONFxHFbGzq1uixafzlVBsKd8QOn+5Pq7+sQT1izx2HdkCTS4VKFc5P+KfDFj6/bk/S9xJ5jJhoYuO55KPt4IcGTcFq8tWspaXhc2nttQKOam1DZv2xg64c6xZNObJ5gT3wh6guuzPHlxtCshmXAGsbyw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740536149; c=relaxed/simple; bh=RrGoS1vfBgoPq1w3HRanHck1U3YYT+gVMz2aRVyXPnY=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=QJpg0kpbed6mETEfxHmYrcH5lthZ4FDpwkKgZlkHxiQjjBBKcasyqdz7CgGZ6GXnyWo75wmhpm9+Z/NXKOvah/8VWbF9auFQbzSX456inCoxO82YKeQws+MtS+gC/PtukSdNSdQ5YfA3wd3tiprAqybwwG9EcUgsEwCChxOhf2o= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=MxP8vg77; 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="MxP8vg77" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E7D55C4CEE6; Wed, 26 Feb 2025 02:15:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1740536149; bh=RrGoS1vfBgoPq1w3HRanHck1U3YYT+gVMz2aRVyXPnY=; h=From:To:Cc:Subject:Date:Reply-to:From; b=MxP8vg77qR2SPlsBOv2PiljMf8GlJDuPj3dhlkzoyc96rWmHsYVoWbfeKiXL0t2hH uLbXRoPjaMP7BrgWd+PdcDsLK6gSNI7cN0lUgy22QvU2jZxIwjF+aAfFQbMfbfc63U 4Ams4bTAKOjhDRW+6IsYx0t+OU2Noi/IuGJ81Ni4= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2022-49555: Bluetooth: hci_qca: Use del_timer_sync() before freeing Date: Wed, 26 Feb 2025 03:13:49 +0100 Message-ID: <2025022616-CVE-2022-49555-64d2@gregkh> X-Mailer: git-send-email 2.48.1 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=2909; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=RrGoS1vfBgoPq1w3HRanHck1U3YYT+gVMz2aRVyXPnY=; b=owGbwMvMwCRo6H6F97bub03G02pJDOn7KjjcfGeuyIrd7pncsvrXit/K76c4iJ+P6px863BX3 Y8NEbv4OmJZGASZGGTFFFm+bOM5ur/ikKKXoe1pmDmsTCBDGLg4BWAiSVYM86POGsVvP3bKz+7n B4HVK3vfMxrfOcSwYCZf7Dcr75+Teb8d2sSwY5rKOt7FqQA= 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: Bluetooth: hci_qca: Use del_timer_sync() before freeing While looking at a crash report on a timer list being corrupted, which usually happens when a timer is freed while still active. This is commonly triggered by code calling del_timer() instead of del_timer_sync() just before freeing. One possible culprit is the hci_qca driver, which does exactly that. Eric mentioned that wake_retrans_timer could be rearmed via the work queue, so also move the destruction of the work queue before del_timer_sync(). The Linux kernel CVE team has assigned CVE-2022-49555 to this issue. Affected and fixed versions =========================== Issue introduced in 4.3 with commit 0ff252c1976da5d80db1377eb39b551931e61826 and fixed in 5.10.120 with commit 4989bb03342941f2b730b37dfa38bce27b543661 Issue introduced in 4.3 with commit 0ff252c1976da5d80db1377eb39b551931e61826 and fixed in 5.15.45 with commit db03727b4bbbbb36e6ef4cb655c670eefb6448e9 Issue introduced in 4.3 with commit 0ff252c1976da5d80db1377eb39b551931e61826 and fixed in 5.17.13 with commit 37d17f63d085d601011964ade7371aeebeb6ed4b Issue introduced in 4.3 with commit 0ff252c1976da5d80db1377eb39b551931e61826 and fixed in 5.18.2 with commit 2717654ae022e6ea959a4b7b762702fe1a4690c2 Issue introduced in 4.3 with commit 0ff252c1976da5d80db1377eb39b551931e61826 and fixed in 5.19 with commit 72ef98445aca568a81c2da050532500a8345ad3a 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-2022-49555 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_qca.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/4989bb03342941f2b730b37dfa38bce27b543661 https://git.kernel.org/stable/c/db03727b4bbbbb36e6ef4cb655c670eefb6448e9 https://git.kernel.org/stable/c/37d17f63d085d601011964ade7371aeebeb6ed4b https://git.kernel.org/stable/c/2717654ae022e6ea959a4b7b762702fe1a4690c2 https://git.kernel.org/stable/c/72ef98445aca568a81c2da050532500a8345ad3a