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Message-ID: <2025022606-CVE-2022-49491-b27f@gregkh> Date: Wed, 26 Feb 2025 03:12:45 +0100 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-cve-announce@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org> Subject: CVE-2022-49491: drm/rockchip: vop: fix possible null-ptr-deref in vop_bind() Description =========== In the Linux kernel, the following vulnerability has been resolved: drm/rockchip: vop: fix possible null-ptr-deref in vop_bind() It will cause null-ptr-deref in resource_size(), if platform_get_resource() returns NULL, move calling resource_size() after devm_ioremap_resource() that will check 'res' to avoid null-ptr-deref. The Linux kernel CVE team has assigned CVE-2022-49491 to this issue. Affected and fixed versions =========================== Issue introduced in 3.19 with commit 2048e3286f347db5667708e47448176b5329e8d8 and fixed in 4.9.318 with commit 452922955df215a417c80d09dab72bbc667a1861 Issue introduced in 3.19 with commit 2048e3286f347db5667708e47448176b5329e8d8 and fixed in 4.14.283 with commit fcd6a886443730c39170b8383411e52118aec0a3 Issue introduced in 3.19 with commit 2048e3286f347db5667708e47448176b5329e8d8 and fixed in 4.19.247 with commit 6ff986e057bf28e2f7690dad410768b2270f9453 Issue introduced in 3.19 with commit 2048e3286f347db5667708e47448176b5329e8d8 and fixed in 5.4.198 with commit a9b4599665e437de8a1152799c34841b799a2e1c Issue introduced in 3.19 with commit 2048e3286f347db5667708e47448176b5329e8d8 and fixed in 5.10.121 with commit 3451852312303d54a003c73bd0ae39cebb960bd5 Issue introduced in 3.19 with commit 2048e3286f347db5667708e47448176b5329e8d8 and fixed in 5.15.46 with commit b54926bd558d97c888c3d2d87886f3c159d3254a Issue introduced in 3.19 with commit 2048e3286f347db5667708e47448176b5329e8d8 and fixed in 5.17.14 with commit 769c53bb6116d0eaec0f1fe4ec4b27a74465cad1 Issue introduced in 3.19 with commit 2048e3286f347db5667708e47448176b5329e8d8 and fixed in 5.18.3 with commit ecfa52654d0c9c333c1fe1611f47105f6bce9591 Issue introduced in 3.19 with commit 2048e3286f347db5667708e47448176b5329e8d8 and fixed in 5.19 with commit f8c242908ad15bbd604d3bcb54961b7d454c43f8 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-2022-49491 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/rockchip/rockchip_drm_vop.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/452922955df215a417c80d09dab72bbc667a1861 https://git.kernel.org/stable/c/fcd6a886443730c39170b8383411e52118aec0a3 https://git.kernel.org/stable/c/6ff986e057bf28e2f7690dad410768b2270f9453 https://git.kernel.org/stable/c/a9b4599665e437de8a1152799c34841b799a2e1c https://git.kernel.org/stable/c/3451852312303d54a003c73bd0ae39cebb960bd5 https://git.kernel.org/stable/c/b54926bd558d97c888c3d2d87886f3c159d3254a https://git.kernel.org/stable/c/769c53bb6116d0eaec0f1fe4ec4b27a74465cad1 https://git.kernel.org/stable/c/ecfa52654d0c9c333c1fe1611f47105f6bce9591 https://git.kernel.org/stable/c/f8c242908ad15bbd604d3bcb54961b7d454c43f8
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