{"id":"CVE-2023-53049","summary":"usb: ucsi: Fix NULL pointer deref in ucsi_connector_change()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: ucsi: Fix NULL pointer deref in ucsi_connector_change()\n\nWhen ucsi_init() fails, ucsi-\u003econnector is NULL, yet in case of\nucsi_acpi we may still get events which cause the ucs_acpi code to call\nucsi_connector_change(), which then derefs the NULL ucsi-\u003econnector\npointer.\n\nFix this by not setting ucsi-\u003entfy inside ucsi_init() until ucsi_init()\nhas succeeded, so that ucsi_connector_change() ignores the events\nbecause UCSI_ENABLE_NTFY_CONNECTOR_CHANGE is not set in the ntfy mask.","modified":"2026-04-11T12:46:40.136500Z","published":"2025-05-02T15:55:05.568Z","related":["SUSE-SU-2025:01918-1","SUSE-SU-2025:01966-1","SUSE-SU-2025:02173-1","SUSE-SU-2025:02262-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53049.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/1c5abcb13491da8c049f20462189c12c753ba978"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7dd27aed9c456670b3882877ef17a48195f21693"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7ef0423e43f877a328454059d46763043ce3da44"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a6adfe9bbd6ac11e398b54ccd99a0f8eea09f3c0"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f87fb985452ab2083967103ac00bfd68fb182764"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53049.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-53049"},{"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":"bdc62f2bae8fb0e8e99574de5232f0a3c54a27df"},{"fixed":"a6adfe9bbd6ac11e398b54ccd99a0f8eea09f3c0"},{"fixed":"7dd27aed9c456670b3882877ef17a48195f21693"},{"fixed":"1c5abcb13491da8c049f20462189c12c753ba978"},{"fixed":"7ef0423e43f877a328454059d46763043ce3da44"},{"fixed":"f87fb985452ab2083967103ac00bfd68fb182764"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-53049.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.5.0"},{"fixed":"5.10.177"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.105"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.22"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.2.9"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-53049.json"}}],"schema_version":"1.7.5"}