{"id":"CVE-2023-52773","summary":"drm/amd/display: fix a NULL pointer dereference in amdgpu_dm_i2c_xfer()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: fix a NULL pointer dereference in amdgpu_dm_i2c_xfer()\n\nWhen ddc_service_construct() is called, it explicitly checks both the\nlink type and whether there is something on the link which will\ndictate whether the pin is marked as hw_supported.\n\nIf the pin isn't set or the link is not set (such as from\nunloading/reloading amdgpu in an IGT test) then fail the\namdgpu_dm_i2c_xfer() call.","modified":"2026-04-02T09:43:19.786547Z","published":"2024-05-21T15:30:54.932Z","related":["SUSE-SU-2024:2008-1","SUSE-SU-2024:2019-1","SUSE-SU-2024:2190-1","SUSE-SU-2024:2571-1","SUSE-SU-2024:2896-1","SUSE-SU-2024:2973-1","SUSE-SU-2025:20008-1","SUSE-SU-2025:20028-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52773.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/1d07b7e84276777dad3c8cfebdf8e739606f90c9"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5b14cf37b9f01de0b28c6f8960019d4c7883ce42"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b71f4ade1b8900d30c661d6c27f87c35214c398c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/fb5c134ca589fe670430acc9e7ebf2691ca2476d"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52773.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-52773"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"22676bc500c27d987a0b42cbe162aebf783f1c38"},{"fixed":"fb5c134ca589fe670430acc9e7ebf2691ca2476d"},{"fixed":"5b14cf37b9f01de0b28c6f8960019d4c7883ce42"},{"fixed":"1d07b7e84276777dad3c8cfebdf8e739606f90c9"},{"fixed":"b71f4ade1b8900d30c661d6c27f87c35214c398c"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-52773.json"}}],"schema_version":"1.7.5"}