{"id":"CVE-2023-52776","summary":"wifi: ath12k: fix dfs-radar and temperature event locking","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath12k: fix dfs-radar and temperature event locking\n\nThe ath12k active pdevs are protected by RCU but the DFS-radar and\ntemperature event handling code calling ath12k_mac_get_ar_by_pdev_id()\nwas not marked as a read-side critical section.\n\nMark the code in question as RCU read-side critical sections to avoid\nany potential use-after-free issues.\n\nNote that the temperature event handler looks like a place holder\ncurrently but would still trigger an RCU lockdep splat.\n\nCompile tested only.","modified":"2026-05-28T03:55:50.884421225Z","published":"2024-05-21T15:30:56.906Z","related":["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-2023-52776.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/69bd216e049349886405b1c87a55dce3d35d1ba7"},{"type":"WEB","url":"https://git.kernel.org/stable/c/774de37c147fea81f2c2e4be5082304f4f71d535"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d7a5f7f76568e48869916d769e28b9f3ca70c78e"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52776.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-52776"},{"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":"d889913205cf7ebda905b1e62c5867ed4e39f6c2"},{"fixed":"774de37c147fea81f2c2e4be5082304f4f71d535"},{"fixed":"d7a5f7f76568e48869916d769e28b9f3ca70c78e"},{"fixed":"69bd216e049349886405b1c87a55dce3d35d1ba7"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-52776.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.3.0"},{"fixed":"6.5.13"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.6.0"},{"fixed":"6.6.3"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-52776.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N"}]}