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Message-ID: <2025022606-CVE-2022-49495-7aba@gregkh> Date: Wed, 26 Feb 2025 03:12:49 +0100 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-cve-announce@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org> Subject: CVE-2022-49495: drm/msm/hdmi: check return value after calling platform_get_resource_byname() Description =========== In the Linux kernel, the following vulnerability has been resolved: drm/msm/hdmi: check return value after calling platform_get_resource_byname() It will cause null-ptr-deref if platform_get_resource_byname() returns NULL, we need check the return value. Patchwork: https://patchwork.freedesktop.org/patch/482992/ The Linux kernel CVE team has assigned CVE-2022-49495 to this issue. Affected and fixed versions =========================== Issue introduced in 4.3 with commit c6a57a50ad562a2e6fc6ac3218b710caea73a58b and fixed in 4.9.318 with commit 9cb1ee33efccb8b107ee04b7b3441820de3fd2da Issue introduced in 4.3 with commit c6a57a50ad562a2e6fc6ac3218b710caea73a58b and fixed in 4.14.283 with commit c1bfacf0daf25a5fc7d667399d6ff2dffda84cd8 Issue introduced in 4.3 with commit c6a57a50ad562a2e6fc6ac3218b710caea73a58b and fixed in 4.19.247 with commit 0978fcce91b90b561b8c82e7c492ba9fc8440eef Issue introduced in 4.3 with commit c6a57a50ad562a2e6fc6ac3218b710caea73a58b and fixed in 5.4.198 with commit 2b3ed7547b1a052209da6c4ab886ffe0eed88c42 Issue introduced in 4.3 with commit c6a57a50ad562a2e6fc6ac3218b710caea73a58b and fixed in 5.10.121 with commit d9cb951d11a4ace4de5c50b1178ad211de17079e Issue introduced in 4.3 with commit c6a57a50ad562a2e6fc6ac3218b710caea73a58b and fixed in 5.15.46 with commit 4cd66a8016b872a153bf892fe4258cbc0dacf5b1 Issue introduced in 4.3 with commit c6a57a50ad562a2e6fc6ac3218b710caea73a58b and fixed in 5.17.14 with commit 6369dda4a2209142ab819f01d3d2076d81e3ebdd Issue introduced in 4.3 with commit c6a57a50ad562a2e6fc6ac3218b710caea73a58b and fixed in 5.18.3 with commit 9f5495a5c51c1d11c6ffc13aa2befffec0c2651a Issue introduced in 4.3 with commit c6a57a50ad562a2e6fc6ac3218b710caea73a58b and fixed in 5.19 with commit a36e506711548df923ceb7ec9f6001375be799a5 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-2022-49495 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/msm/hdmi/hdmi.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/9cb1ee33efccb8b107ee04b7b3441820de3fd2da https://git.kernel.org/stable/c/c1bfacf0daf25a5fc7d667399d6ff2dffda84cd8 https://git.kernel.org/stable/c/0978fcce91b90b561b8c82e7c492ba9fc8440eef https://git.kernel.org/stable/c/2b3ed7547b1a052209da6c4ab886ffe0eed88c42 https://git.kernel.org/stable/c/d9cb951d11a4ace4de5c50b1178ad211de17079e https://git.kernel.org/stable/c/4cd66a8016b872a153bf892fe4258cbc0dacf5b1 https://git.kernel.org/stable/c/6369dda4a2209142ab819f01d3d2076d81e3ebdd https://git.kernel.org/stable/c/9f5495a5c51c1d11c6ffc13aa2befffec0c2651a https://git.kernel.org/stable/c/a36e506711548df923ceb7ec9f6001375be799a5
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