{"id":"CVE-2025-21773","summary":"can: etas_es58x: fix potential NULL pointer dereference on udev-\u003eserial","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ncan: etas_es58x: fix potential NULL pointer dereference on udev-\u003eserial\n\nThe driver assumed that es58x_dev-\u003eudev-\u003eserial could never be NULL.\nWhile this is true on commercially available devices, an attacker\ncould spoof the device identity providing a NULL USB serial number.\nThat would trigger a NULL pointer dereference.\n\nAdd a check on es58x_dev-\u003eudev-\u003eserial before accessing it.","modified":"2026-05-18T05:58:04.389567459Z","published":"2025-02-27T02:18:20.013Z","related":["SUSE-SU-2025:01919-1","SUSE-SU-2025:1177-1","SUSE-SU-2025:1178-1","SUSE-SU-2025:1180-1","SUSE-SU-2025:20190-1","SUSE-SU-2025:20192-1","SUSE-SU-2025:20260-1","SUSE-SU-2025:20270-1","USN-7521-2"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21773.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/1590667a60753ee5a54871f2840ceefd4a7831fa"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5059ea98d7bc133903d3e47ab36df6ed11d0c95f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/722e8e1219c8b6ac2865011fe339315d6a8d0721"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a1ad2109ce41c9e3912dadd07ad8a9c640064ffb"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21773.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-21773"},{"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":"9f06631c3f1f0f298536443df85a6837ba4c5f5c"},{"fixed":"1590667a60753ee5a54871f2840ceefd4a7831fa"},{"fixed":"722e8e1219c8b6ac2865011fe339315d6a8d0721"},{"fixed":"5059ea98d7bc133903d3e47ab36df6ed11d0c95f"},{"fixed":"a1ad2109ce41c9e3912dadd07ad8a9c640064ffb"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-21773.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.79"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.16"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.13.4"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-21773.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"}]}