| 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-2022-49645: drm/panfrost: Fix shrinker list corruption by madvise IOCTL |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| drm/panfrost: Fix shrinker list corruption by madvise IOCTL |
| |
| Calling madvise IOCTL twice on BO causes memory shrinker list corruption |
| and crashes kernel because BO is already on the list and it's added to |
| the list again, while BO should be removed from the list before it's |
| re-added. Fix it. |
| |
| The Linux kernel CVE team has assigned CVE-2022-49645 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.4 with commit 013b6510131568ce4e01856d5360bfdfe9c3632f and fixed in 5.4.207 with commit 393594aad55179eb761af41533d8d1d6eb4543b0 |
| Issue introduced in 5.4 with commit 013b6510131568ce4e01856d5360bfdfe9c3632f and fixed in 5.10.132 with commit 0581613df7f9a4c5fac096ce1d5fb15b7b994240 |
| Issue introduced in 5.4 with commit 013b6510131568ce4e01856d5360bfdfe9c3632f and fixed in 5.15.56 with commit 1807d8867402a58b831a7fc16832747ff559a0d1 |
| Issue introduced in 5.4 with commit 013b6510131568ce4e01856d5360bfdfe9c3632f and fixed in 5.18.13 with commit f036392edd9c49090781d8cca26ad6557a63bae4 |
| Issue introduced in 5.4 with commit 013b6510131568ce4e01856d5360bfdfe9c3632f and fixed in 5.19 with commit 9fc33eaaa979d112d10fea729edcd2a2e21aa912 |
| |
| 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-2022-49645 |
| 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/panfrost/panfrost_drv.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/393594aad55179eb761af41533d8d1d6eb4543b0 |
| https://git.kernel.org/stable/c/0581613df7f9a4c5fac096ce1d5fb15b7b994240 |
| https://git.kernel.org/stable/c/1807d8867402a58b831a7fc16832747ff559a0d1 |
| https://git.kernel.org/stable/c/f036392edd9c49090781d8cca26ad6557a63bae4 |
| https://git.kernel.org/stable/c/9fc33eaaa979d112d10fea729edcd2a2e21aa912 |
