| 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-2021-4453: drm/amd/pm: fix a potential gpu_metrics_table memory leak |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| drm/amd/pm: fix a potential gpu_metrics_table memory leak |
| |
| Memory is allocated for gpu_metrics_table in renoir_init_smc_tables(), |
| but not freed in int smu_v12_0_fini_smc_tables(). Free it! |
| |
| The Linux kernel CVE team has assigned CVE-2021-4453 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.10 with commit 95868b85764aff2dcbf78d3054076df75446ad15 and fixed in 5.10.88 with commit 222cebd995cdf11fe0d502749560f65e64990e55 |
| Issue introduced in 5.10 with commit 95868b85764aff2dcbf78d3054076df75446ad15 and fixed in 5.15.11 with commit 257b3bb16634fd936129fe2f57a91594a75b8751 |
| Issue introduced in 5.10 with commit 95868b85764aff2dcbf78d3054076df75446ad15 and fixed in 5.16 with commit aa464957f7e660abd554f2546a588f6533720e21 |
| |
| 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-2021-4453 |
| 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/gpu/drm/amd/pm/swsmu/smu12/smu_v12_0.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/222cebd995cdf11fe0d502749560f65e64990e55 |
| https://git.kernel.org/stable/c/257b3bb16634fd936129fe2f57a91594a75b8751 |
| https://git.kernel.org/stable/c/aa464957f7e660abd554f2546a588f6533720e21 |
