| 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-2022-49370: firmware: dmi-sysfs: Fix memory leak in dmi_sysfs_register_handle |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| firmware: dmi-sysfs: Fix memory leak in dmi_sysfs_register_handle |
| |
| kobject_init_and_add() takes reference even when it fails. |
| According to the doc of kobject_init_and_add() |
| |
| If this function returns an error, kobject_put() must be called to |
| properly clean up the memory associated with the object. |
| |
| Fix this issue by calling kobject_put(). |
| |
| The Linux kernel CVE team has assigned CVE-2022-49370 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 2.6.39 with commit 948af1f0bbc8526448e8cbe3f8d3bf211bdf5181 and fixed in 4.9.318 with commit a9bfb37d6ba7c376b0d53337a4c5f5ff324bd725 |
| Issue introduced in 2.6.39 with commit 948af1f0bbc8526448e8cbe3f8d3bf211bdf5181 and fixed in 4.14.283 with commit ed38d04342dfbe9e5aca745c8b5eb4188a74f0ef |
| Issue introduced in 2.6.39 with commit 948af1f0bbc8526448e8cbe3f8d3bf211bdf5181 and fixed in 4.19.247 with commit c66cc3c62870a27ea8f060a7e4c1ad8d26dd3f0d |
| Issue introduced in 2.6.39 with commit 948af1f0bbc8526448e8cbe3f8d3bf211bdf5181 and fixed in 5.4.198 with commit a724634b2a49f6ff0177a9e19a5a92fc1545e1b7 |
| Issue introduced in 2.6.39 with commit 948af1f0bbc8526448e8cbe3f8d3bf211bdf5181 and fixed in 5.10.122 with commit 985706bd3bbeffc8737bc05965ca8d24837bc7db |
| Issue introduced in 2.6.39 with commit 948af1f0bbc8526448e8cbe3f8d3bf211bdf5181 and fixed in 5.15.47 with commit fdffa4ad8f6bf1ece877edfb807f2b2c729d8578 |
| Issue introduced in 2.6.39 with commit 948af1f0bbc8526448e8cbe3f8d3bf211bdf5181 and fixed in 5.17.15 with commit 3ba359ebe914ac3f8c6c832b28007c14c39d3766 |
| Issue introduced in 2.6.39 with commit 948af1f0bbc8526448e8cbe3f8d3bf211bdf5181 and fixed in 5.18.4 with commit ec752973aa721ee281d5441e497364637c626c7b |
| Issue introduced in 2.6.39 with commit 948af1f0bbc8526448e8cbe3f8d3bf211bdf5181 and fixed in 5.19 with commit 660ba678f9998aca6db74f2dd912fa5124f0fa31 |
| |
| 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-2022-49370 |
| 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/firmware/dmi-sysfs.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/a9bfb37d6ba7c376b0d53337a4c5f5ff324bd725 |
| https://git.kernel.org/stable/c/ed38d04342dfbe9e5aca745c8b5eb4188a74f0ef |
| https://git.kernel.org/stable/c/c66cc3c62870a27ea8f060a7e4c1ad8d26dd3f0d |
| https://git.kernel.org/stable/c/a724634b2a49f6ff0177a9e19a5a92fc1545e1b7 |
| https://git.kernel.org/stable/c/985706bd3bbeffc8737bc05965ca8d24837bc7db |
| https://git.kernel.org/stable/c/fdffa4ad8f6bf1ece877edfb807f2b2c729d8578 |
| https://git.kernel.org/stable/c/3ba359ebe914ac3f8c6c832b28007c14c39d3766 |
| https://git.kernel.org/stable/c/ec752973aa721ee281d5441e497364637c626c7b |
| https://git.kernel.org/stable/c/660ba678f9998aca6db74f2dd912fa5124f0fa31 |
