{"id":"AZL-102158","summary":"CVE-2026-90228 affecting package kernel 6.6.150.1-1","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnvmet: fix NULL pointer dereference in nvmet_execute_identify_ns_zns()\n\nWhen a host issues an Identify command with CNS 05h (I/O Command Set\nspecific Identify Namespace) and CSI 02h (ZNS) targeting a file-backed\nnamespace, nvmet_execute_identify_ns_zns() calls bdev_is_zoned() on\nreq-\u003ens-\u003ebdev. A file-backed namespace has no block device, so\nreq-\u003ens-\u003ebdev is NULL and bdev_is_zoned() dereferences it, oopsing.\n\nThe I/O command set is selected by the host-supplied CSI field and the\ncommand is routed here whenever CONFIG_BLK_DEV_ZONED is enabled,\nindependent of the namespace backing type, so any file-backed namespace\nis exposed.\n\nReject the command with Invalid Field when the namespace is not backed\nby a block device.","modified":"2026-09-18T14:15:35.538998247Z","published":"2026-09-17T17:17:18Z","upstream":["CVE-2026-90228"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90228"}],"affected":[{"package":{"name":"kernel","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/kernel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"6.6.150.1-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-102158.json"}}],"schema_version":"1.9.0"}