| From bippy-1.2.0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@kernel.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2024-50049: drm/amd/display: Check null pointer before dereferencing se |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| drm/amd/display: Check null pointer before dereferencing se |
| |
| [WHAT & HOW] |
| se is null checked previously in the same function, indicating |
| it might be null; therefore, it must be checked when used again. |
| |
| This fixes 1 FORWARD_NULL issue reported by Coverity. |
| |
| The Linux kernel CVE team has assigned CVE-2024-50049 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.5 with commit 93c2340bdc24b6067a7621e71d4aacac1f85b5f2 and fixed in 5.10.227 with commit f4149eec960110ffd5bcb161075dd9f1d7773075 |
| Issue introduced in 5.5 with commit 93c2340bdc24b6067a7621e71d4aacac1f85b5f2 and fixed in 5.15.168 with commit c643ef59390e49f1dfab35e8ea65f5db5e527d64 |
| Issue introduced in 5.5 with commit 93c2340bdc24b6067a7621e71d4aacac1f85b5f2 and fixed in 6.1.113 with commit 97a79933fb08a002ba9400d1a7a5df707ecdb896 |
| Issue introduced in 5.5 with commit 93c2340bdc24b6067a7621e71d4aacac1f85b5f2 and fixed in 6.6.57 with commit 65b2d49e55fe13ae56da3a7685bdccadca31134a |
| Issue introduced in 5.5 with commit 93c2340bdc24b6067a7621e71d4aacac1f85b5f2 and fixed in 6.11.4 with commit a9b4fd1946678fa0e069e442f3c5a7d3fa446fac |
| Issue introduced in 5.5 with commit 93c2340bdc24b6067a7621e71d4aacac1f85b5f2 and fixed in 6.12 with commit ff599ef6970ee000fa5bc38d02fa5ff5f3fc7575 |
| |
| 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-2024-50049 |
| 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/f4149eec960110ffd5bcb161075dd9f1d7773075 |
| https://git.kernel.org/stable/c/c643ef59390e49f1dfab35e8ea65f5db5e527d64 |
| https://git.kernel.org/stable/c/97a79933fb08a002ba9400d1a7a5df707ecdb896 |
| https://git.kernel.org/stable/c/65b2d49e55fe13ae56da3a7685bdccadca31134a |
| https://git.kernel.org/stable/c/a9b4fd1946678fa0e069e442f3c5a7d3fa446fac |
| https://git.kernel.org/stable/c/ff599ef6970ee000fa5bc38d02fa5ff5f3fc7575 |
