| From bippy-5f407fcff5a0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2023-53012: thermal: core: call put_device() only after device_register() fails |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| thermal: core: call put_device() only after device_register() fails |
| |
| put_device() shouldn't be called before a prior call to |
| device_register(). __thermal_cooling_device_register() doesn't follow |
| that properly and needs fixing. Also |
| thermal_cooling_device_destroy_sysfs() is getting called unnecessarily |
| on few error paths. |
| |
| Fix all this by placing the calls at the right place. |
| |
| Based on initial work done by Caleb Connolly. |
| |
| The Linux kernel CVE team has assigned CVE-2023-53012 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.15.86 with commit 5139cbc0c6e4bf2fcffc9a7ed4350bf6985bc561 |
| Issue introduced in 6.0.16 with commit c4c435d3637b5d0abaa6447c7366c3674364968a |
| Issue introduced in 6.1.2 with commit e0d8b51bbe84d6a98c162e06344de2d773d9e722 |
| |
| 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-2023-53012 |
| 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/thermal/thermal_core.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/a7d736cc3c6cb0d7498bbfb56515d414e35e9510 |
| https://git.kernel.org/stable/c/2846a7412f6246fd5171f51011bf76dfebcec0ee |
| https://git.kernel.org/stable/c/6c54b7bc8a31ce0f7cc7f8deef05067df414f1d8 |
