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 C567112CDA8 for ; Fri, 24 May 2024 15:10:11 +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=1716563411; cv=none; b=prR0nTvcijnBKI36pFbFLAraPHUHie8hPSlSurBBdmq4voL7+Z2cMF8pfVk3qNtcvnMJDMO8/GpKdkokGKqotJYjT5Juypd1fXLPw6dqmDQSWanIapa9VPo92YoOXZJ5nyWOolPp73OlKcBUqSrPsrIcdZliE++LJqZhnS5i8PI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716563411; c=relaxed/simple; bh=6/o/Jj9aDtxkba+X2YD0RtzOqzp/C3Lfac/7vPmy0e4=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=SA5d1A+sQziKwa0sIsexjRigySBkp6RRdGBJcBTzLi+3OO1ojc/rExUWmAqxu8rBA+rDqw+/bPc+mUC4UuglPTkCVUPJCqkZrNp6A+AZCdCBAUm3etB+NJPyRNrG9qzyw5m60LUNeqkDSUrqj86q0ihXKF/0KCW/PqDsw7UQH40= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=nUco9rh8; 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="nUco9rh8" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4B9CEC2BBFC; Fri, 24 May 2024 15:10:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1716563411; bh=6/o/Jj9aDtxkba+X2YD0RtzOqzp/C3Lfac/7vPmy0e4=; h=From:To:Cc:Subject:Date:Reply-to:From; b=nUco9rh8eLQHUFA+S4ElZywAXm8fek0oMH6FbgZsr76yvzVusuY03iqSzWMQJWHYX JUsm6mrQ3MXi8PbpOjQz6izuplcvmLdcVDqpZ3JQhZVGbFa2PBfupnVLN5Jp9VAq8i +gZl+Uqma7KW65PJO4idIY8+abSwFVQH4/a32fJQ= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2021-47524: serial: liteuart: fix minor-number leak on probe errors Date: Fri, 24 May 2024 17:09:44 +0200 Message-ID: <2024052434-CVE-2021-47524-7fd0@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=1738; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=6/o/Jj9aDtxkba+X2YD0RtzOqzp/C3Lfac/7vPmy0e4=; b=owGbwMvMwCRo6H6F97bub03G02pJDGkBa9dt2/eLLyllP6cB58TdE1dm/FXKUzHVCW2ps54lw fzee2p2RywLgyATg6yYIsuXbTxH91ccUvQytD0NM4eVCWQIAxenAExEuphhwdwdE846nPbtlWdu XD3nhNgGg/UlYQwLFvTvEHwlfu1+wclpz5a8DmStYXjOAQA= 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: serial: liteuart: fix minor-number leak on probe errors Make sure to release the allocated minor number before returning on probe errors. The Linux kernel CVE team has assigned CVE-2021-47524 to this issue. Affected and fixed versions =========================== Issue introduced in 5.11 with commit 1da81e5562fa and fixed in 5.15.7 with commit 888fc81107ca Issue introduced in 5.11 with commit 1da81e5562fa and fixed in 5.16 with commit dd5e90b16cca 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-2021-47524 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/tty/serial/liteuart.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/888fc81107cacd2a4f681bac7bb785cef868214f https://git.kernel.org/stable/c/dd5e90b16cca8a697cbe17b72e2a5f49291cabb2