| 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-2021-47422: drm/nouveau/kms/nv50-: fix file release memory leak |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| drm/nouveau/kms/nv50-: fix file release memory leak |
| |
| When using single_open() for opening, single_release() should be |
| called, otherwise the 'op' allocated in single_open() will be leaked. |
| |
| The Linux kernel CVE team has assigned CVE-2021-47422 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.9 with commit 12885ecbfe62df4358d452080d3b8feef54ec8cb and fixed in 5.10.73 with commit 65fff0a8efcdca8d84ffe3e23057c3b32403482d |
| Issue introduced in 5.9 with commit 12885ecbfe62df4358d452080d3b8feef54ec8cb and fixed in 5.14.12 with commit 0b4e9fc14973a94ac0520f19b3633493ae13c912 |
| Issue introduced in 5.9 with commit 12885ecbfe62df4358d452080d3b8feef54ec8cb and fixed in 5.15 with commit 0b3d4945cc7e7ea1acd52cb06dfa83bfe265b6d5 |
| |
| 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-2021-47422 |
| 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/nouveau/dispnv50/crc.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/65fff0a8efcdca8d84ffe3e23057c3b32403482d |
| https://git.kernel.org/stable/c/0b4e9fc14973a94ac0520f19b3633493ae13c912 |
| https://git.kernel.org/stable/c/0b3d4945cc7e7ea1acd52cb06dfa83bfe265b6d5 |
