| 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-2024-43894: drm/client: fix null pointer dereference in drm_client_modeset_probe |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| drm/client: fix null pointer dereference in drm_client_modeset_probe |
| |
| In drm_client_modeset_probe(), the return value of drm_mode_duplicate() is |
| assigned to modeset->mode, which will lead to a possible NULL pointer |
| dereference on failure of drm_mode_duplicate(). Add a check to avoid npd. |
| |
| The Linux kernel CVE team has assigned CVE-2024-43894 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.3 with commit cf13909aee054f5aa667d4b9da0ac7df4f6c1327 and fixed in 5.4.282 with commit 24ddda932c43ffe156c7f3c568bed85131c63ae6 |
| Issue introduced in 5.3 with commit cf13909aee054f5aa667d4b9da0ac7df4f6c1327 and fixed in 5.10.224 with commit 5291d4f73452c91e8a11f71207617e3e234d418e |
| Issue introduced in 5.3 with commit cf13909aee054f5aa667d4b9da0ac7df4f6c1327 and fixed in 5.15.165 with commit c763dfe09425152b6bb0e348900a637c62c2ce52 |
| Issue introduced in 5.3 with commit cf13909aee054f5aa667d4b9da0ac7df4f6c1327 and fixed in 6.1.105 with commit d64847c383100423aecb6ac5f18be5f4316d9d62 |
| Issue introduced in 5.3 with commit cf13909aee054f5aa667d4b9da0ac7df4f6c1327 and fixed in 6.6.46 with commit d64fc94f7bb24fc2be0d6bd5df8df926da461a6d |
| Issue introduced in 5.3 with commit cf13909aee054f5aa667d4b9da0ac7df4f6c1327 and fixed in 6.10.5 with commit 612cae53e99ce32a58cb821b3b67199eb6e92dff |
| Issue introduced in 5.3 with commit cf13909aee054f5aa667d4b9da0ac7df4f6c1327 and fixed in 6.11 with commit 113fd6372a5bb3689aba8ef5b8a265ed1529a78f |
| |
| 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-2024-43894 |
| 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/drm_client_modeset.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/24ddda932c43ffe156c7f3c568bed85131c63ae6 |
| https://git.kernel.org/stable/c/5291d4f73452c91e8a11f71207617e3e234d418e |
| https://git.kernel.org/stable/c/c763dfe09425152b6bb0e348900a637c62c2ce52 |
| https://git.kernel.org/stable/c/d64847c383100423aecb6ac5f18be5f4316d9d62 |
| https://git.kernel.org/stable/c/d64fc94f7bb24fc2be0d6bd5df8df926da461a6d |
| https://git.kernel.org/stable/c/612cae53e99ce32a58cb821b3b67199eb6e92dff |
| https://git.kernel.org/stable/c/113fd6372a5bb3689aba8ef5b8a265ed1529a78f |
