| 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-2024-46694: drm/amd/display: avoid using null object of framebuffer |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| drm/amd/display: avoid using null object of framebuffer |
| |
| Instead of using state->fb->obj[0] directly, get object from framebuffer |
| by calling drm_gem_fb_get_obj() and return error code when object is |
| null to avoid using null object of framebuffer. |
| |
| (cherry picked from commit 73dd0ad9e5dad53766ea3e631303430116f834b3) |
| |
| The Linux kernel CVE team has assigned CVE-2024-46694 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.0 with commit 5d945cbcd4b16a29d6470a80dfb19738f9a4319f and fixed in 6.1.108 with commit 093ee72ed35c2338c87c26b6ba6f0b7789c9e14e |
| Issue introduced in 6.0 with commit 5d945cbcd4b16a29d6470a80dfb19738f9a4319f and fixed in 6.6.49 with commit f6f5e39a3fe7cbdba190f42b28b40bdff03c8cf0 |
| Issue introduced in 6.0 with commit 5d945cbcd4b16a29d6470a80dfb19738f9a4319f and fixed in 6.10.8 with commit 49e1b214f3239b78967c6ddb8f8ec47ae047b051 |
| Issue introduced in 6.0 with commit 5d945cbcd4b16a29d6470a80dfb19738f9a4319f and fixed in 6.11 with commit 3b9a33235c773c7a3768060cf1d2cf8a9153bc37 |
| |
| 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-2024-46694 |
| 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/display/amdgpu_dm/amdgpu_dm_plane.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/093ee72ed35c2338c87c26b6ba6f0b7789c9e14e |
| https://git.kernel.org/stable/c/f6f5e39a3fe7cbdba190f42b28b40bdff03c8cf0 |
| https://git.kernel.org/stable/c/49e1b214f3239b78967c6ddb8f8ec47ae047b051 |
| https://git.kernel.org/stable/c/3b9a33235c773c7a3768060cf1d2cf8a9153bc37 |
