{"id":"CVE-2022-49187","summary":"clk: Fix clk_hw_get_clk() when dev is NULL","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nclk: Fix clk_hw_get_clk() when dev is NULL\n\nAny registered clk_core structure can have a NULL pointer in its dev\nfield. While never actually documented, this is evidenced by the wide\nusage of clk_register and clk_hw_register with a NULL device pointer,\nand the fact that the core of_clk_hw_register() function also passes a\nNULL device pointer.\n\nA call to clk_hw_get_clk() on a clk_hw struct whose clk_core is in that\ncase will result in a NULL pointer derefence when it calls dev_name() on\nthat NULL device pointer.\n\nAdd a test for this case and use NULL as the dev_id if the device\npointer is NULL.","modified":"2026-04-02T08:27:22.265376Z","published":"2025-02-26T01:55:36.094Z","related":["SUSE-SU-2025:1027-1","SUSE-SU-2025:1176-1","SUSE-SU-2025:1183-1","SUSE-SU-2025:1241-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49187.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/0c1b56df451716ba207bbf59f303473643eee4fd"},{"type":"WEB","url":"https://git.kernel.org/stable/c/23f89fe005b105f0dcc55034c13eb89f9b570fac"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4be3e4c05d8dd1b83b75652cad88c9e752ec7054"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d183f20cf5a7b546d4108e796b98210ceb317579"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49187.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-49187"},{"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":"30d6f8c15d2cd877c1f3d47d8a1064649ebe58e2"},{"fixed":"4be3e4c05d8dd1b83b75652cad88c9e752ec7054"},{"fixed":"d183f20cf5a7b546d4108e796b98210ceb317579"},{"fixed":"23f89fe005b105f0dcc55034c13eb89f9b570fac"},{"fixed":"0c1b56df451716ba207bbf59f303473643eee4fd"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49187.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}