| 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-2024-49913: drm/amd/display: Add null check for top_pipe_to_program in commit_planes_for_stream |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| drm/amd/display: Add null check for top_pipe_to_program in commit_planes_for_stream |
| |
| This commit addresses a null pointer dereference issue in the |
| `commit_planes_for_stream` function at line 4140. The issue could occur |
| when `top_pipe_to_program` is null. |
| |
| The fix adds a check to ensure `top_pipe_to_program` is not null before |
| accessing its stream_res. This prevents a null pointer dereference. |
| |
| Reported by smatch: |
| drivers/gpu/drm/amd/amdgpu/../display/dc/core/dc.c:4140 commit_planes_for_stream() error: we previously assumed 'top_pipe_to_program' could be null (see line 3906) |
| |
| The Linux kernel CVE team has assigned CVE-2024-49913 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Fixed in 5.10.227 with commit 1ebfa6663807c144be8c8b6727375012409d2356 |
| Fixed in 5.15.168 with commit 8ab59527852a6f7780aad6185729550ca0569122 |
| Fixed in 6.1.113 with commit 40193ff73630adf76bc0d82398f7d90fb576dba4 |
| Fixed in 6.6.55 with commit e47e563c6f0db7d792a559301862c19ead0dfc2f |
| Fixed in 6.10.14 with commit 3929e382e4758aff42da0102a60d13337c99d3b8 |
| Fixed in 6.11.3 with commit 73efd2a611b62fee71a7b7f27d9d08bb60da8a72 |
| Fixed in 6.12 with commit 66d71a72539e173a9b00ca0b1852cbaa5f5bf1ad |
| |
| 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-2024-49913 |
| 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/dc/core/dc.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/1ebfa6663807c144be8c8b6727375012409d2356 |
| https://git.kernel.org/stable/c/8ab59527852a6f7780aad6185729550ca0569122 |
| https://git.kernel.org/stable/c/40193ff73630adf76bc0d82398f7d90fb576dba4 |
| https://git.kernel.org/stable/c/e47e563c6f0db7d792a559301862c19ead0dfc2f |
| https://git.kernel.org/stable/c/3929e382e4758aff42da0102a60d13337c99d3b8 |
| https://git.kernel.org/stable/c/73efd2a611b62fee71a7b7f27d9d08bb60da8a72 |
| https://git.kernel.org/stable/c/66d71a72539e173a9b00ca0b1852cbaa5f5bf1ad |
