| 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-2021-46962: mmc: uniphier-sd: Fix a resource leak in the remove function |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| mmc: uniphier-sd: Fix a resource leak in the remove function |
| |
| A 'tmio_mmc_host_free()' call is missing in the remove function, in order |
| to balance a 'tmio_mmc_host_alloc()' call in the probe. |
| This is done in the error handling path of the probe, but not in the remove |
| function. |
| |
| Add the missing call. |
| |
| The Linux kernel CVE team has assigned CVE-2021-46962 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.20 with commit 3fd784f745dd1747863775a99ec749619ee6759c and fixed in 5.4.118 with commit 0d8941b9b2d3e7b3481fdf43b1a6189d162175b7 |
| Issue introduced in 4.20 with commit 3fd784f745dd1747863775a99ec749619ee6759c and fixed in 5.10.36 with commit 25ac6ce65f1ab458982d15ec1caf441acd37106a |
| Issue introduced in 4.20 with commit 3fd784f745dd1747863775a99ec749619ee6759c and fixed in 5.11.20 with commit ebe0f12cf4c044f812c6d17011531582f9ac8bb3 |
| Issue introduced in 4.20 with commit 3fd784f745dd1747863775a99ec749619ee6759c and fixed in 5.12.3 with commit d6e7fda496978f2763413b5523557b38dc2bf6c2 |
| Issue introduced in 4.20 with commit 3fd784f745dd1747863775a99ec749619ee6759c and fixed in 5.13 with commit e29c84857e2d51aa017ce04284b962742fb97d9e |
| |
| 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-2021-46962 |
| 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/mmc/host/uniphier-sd.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/0d8941b9b2d3e7b3481fdf43b1a6189d162175b7 |
| https://git.kernel.org/stable/c/25ac6ce65f1ab458982d15ec1caf441acd37106a |
| https://git.kernel.org/stable/c/ebe0f12cf4c044f812c6d17011531582f9ac8bb3 |
| https://git.kernel.org/stable/c/d6e7fda496978f2763413b5523557b38dc2bf6c2 |
| https://git.kernel.org/stable/c/e29c84857e2d51aa017ce04284b962742fb97d9e |
