{"id":"AZL-57929","summary":"CVE-2025-21773 affecting package kernel for versions less than 6.6.79.1-1","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":"2026-04-01T05:19:14.547797Z","published":"2025-02-27T03:15:17Z","upstream":["CVE-2025-21773"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-21773"}],"affected":[{"package":{"name":"kernel","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/kernel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.6.79.1-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-57929.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"}]}