| 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-2021-47423: drm/nouveau/debugfs: fix file release memory leak |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| drm/nouveau/debugfs: 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-2021-47423 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.5 with commit 6e9fc177399f08446293fec7607913fdbc95e191 and fixed in 4.9.287 with commit df0c9418923679bc6d0060bdb1b5bf2c755159e0 |
| Issue introduced in 4.5 with commit 6e9fc177399f08446293fec7607913fdbc95e191 and fixed in 4.14.251 with commit 9f9d4c88b2edc7924e19c44909cfc3fa4e4d3d43 |
| Issue introduced in 4.5 with commit 6e9fc177399f08446293fec7607913fdbc95e191 and fixed in 4.19.211 with commit 1508b09945bde393326a9dab73b1fc35f672d771 |
| Issue introduced in 4.5 with commit 6e9fc177399f08446293fec7607913fdbc95e191 and fixed in 5.4.153 with commit 11cd944bb87d9e575b94c07c952105eda745b459 |
| Issue introduced in 4.5 with commit 6e9fc177399f08446293fec7607913fdbc95e191 and fixed in 5.10.73 with commit f69556a42043b5444ca712ee889829ba89fdcba8 |
| Issue introduced in 4.5 with commit 6e9fc177399f08446293fec7607913fdbc95e191 and fixed in 5.14.12 with commit 88c3610045ca6e699331b6bb5c095c5565f30721 |
| Issue introduced in 4.5 with commit 6e9fc177399f08446293fec7607913fdbc95e191 and fixed in 5.15 with commit f5a8703a9c418c6fc54eb772712dfe7641e3991c |
| |
| 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-2021-47423 |
| 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/nouveau_debugfs.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/df0c9418923679bc6d0060bdb1b5bf2c755159e0 |
| https://git.kernel.org/stable/c/9f9d4c88b2edc7924e19c44909cfc3fa4e4d3d43 |
| https://git.kernel.org/stable/c/1508b09945bde393326a9dab73b1fc35f672d771 |
| https://git.kernel.org/stable/c/11cd944bb87d9e575b94c07c952105eda745b459 |
| https://git.kernel.org/stable/c/f69556a42043b5444ca712ee889829ba89fdcba8 |
| https://git.kernel.org/stable/c/88c3610045ca6e699331b6bb5c095c5565f30721 |
| https://git.kernel.org/stable/c/f5a8703a9c418c6fc54eb772712dfe7641e3991c |
