| 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-2024-38549: drm/mediatek: Add 0 size check to mtk_drm_gem_obj |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| drm/mediatek: Add 0 size check to mtk_drm_gem_obj |
| |
| Add a check to mtk_drm_gem_init if we attempt to allocate a GEM object |
| of 0 bytes. Currently, no such check exists and the kernel will panic if |
| a userspace application attempts to allocate a 0x0 GBM buffer. |
| |
| Tested by attempting to allocate a 0x0 GBM buffer on an MT8188 and |
| verifying that we now return EINVAL. |
| |
| The Linux kernel CVE team has assigned CVE-2024-38549 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.7 with commit 119f5173628aa7a0c3cf9db83460d40709e8241d and fixed in 4.19.316 with commit 79078880795478d551a05acc41f957700030d364 |
| Issue introduced in 4.7 with commit 119f5173628aa7a0c3cf9db83460d40709e8241d and fixed in 5.4.278 with commit be34a1b351ea7faeb15dde8c44fe89de3980ae67 |
| Issue introduced in 4.7 with commit 119f5173628aa7a0c3cf9db83460d40709e8241d and fixed in 5.10.219 with commit d17b75ee9c2e44d3a3682c4ea5ab713ea6073350 |
| Issue introduced in 4.7 with commit 119f5173628aa7a0c3cf9db83460d40709e8241d and fixed in 5.15.161 with commit 0e3b6f9123726858cac299e1654e3d20424cabe4 |
| Issue introduced in 4.7 with commit 119f5173628aa7a0c3cf9db83460d40709e8241d and fixed in 6.1.93 with commit 13562c2d48c9ee330de1077d00146742be368f05 |
| Issue introduced in 4.7 with commit 119f5173628aa7a0c3cf9db83460d40709e8241d and fixed in 6.6.33 with commit af26ea99019caee1500bf7e60c861136c0bf8594 |
| Issue introduced in 4.7 with commit 119f5173628aa7a0c3cf9db83460d40709e8241d and fixed in 6.8.12 with commit 9489951e3ae505534c4013db4e76b1b5a3151ac7 |
| Issue introduced in 4.7 with commit 119f5173628aa7a0c3cf9db83460d40709e8241d and fixed in 6.9.3 with commit fb4aabdb1b48c25d9e1ee28f89440fd2ce556405 |
| Issue introduced in 4.7 with commit 119f5173628aa7a0c3cf9db83460d40709e8241d and fixed in 6.10 with commit 1e4350095e8ab2577ee05f8c3b044e661b5af9a0 |
| |
| 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-2024-38549 |
| 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/mediatek/mtk_drm_gem.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/79078880795478d551a05acc41f957700030d364 |
| https://git.kernel.org/stable/c/be34a1b351ea7faeb15dde8c44fe89de3980ae67 |
| https://git.kernel.org/stable/c/d17b75ee9c2e44d3a3682c4ea5ab713ea6073350 |
| https://git.kernel.org/stable/c/0e3b6f9123726858cac299e1654e3d20424cabe4 |
| https://git.kernel.org/stable/c/13562c2d48c9ee330de1077d00146742be368f05 |
| https://git.kernel.org/stable/c/af26ea99019caee1500bf7e60c861136c0bf8594 |
| https://git.kernel.org/stable/c/9489951e3ae505534c4013db4e76b1b5a3151ac7 |
| https://git.kernel.org/stable/c/fb4aabdb1b48c25d9e1ee28f89440fd2ce556405 |
| https://git.kernel.org/stable/c/1e4350095e8ab2577ee05f8c3b044e661b5af9a0 |
