{"id":"CVE-2026-90228","title":"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…","summary":"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…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","vendor":"Linux","product":"Linux","affected":["Linux >= aaf2e048af2704da5869f27b508b288f36d5c7b7 < 1ce8faf90eb0bf5599b90db38500aefea9426485","Linux >= aaf2e048af2704da5869f27b508b288f36d5c7b7 < b873099944dae5702b4b6db6814d1f1e8d4cfb00","Linux >= aaf2e048af2704da5869f27b508b288f36d5c7b7 < ff28a93a895912010a7827a0e1445ebe8be53b4d","Linux >= aaf2e048af2704da5869f27b508b288f36d5c7b7 < cc29f7082b7ab5e0337f27d1fef16359f05fcffa","Linux >= aaf2e048af2704da5869f27b508b288f36d5c7b7 < 1fb1236312ee1a600de6b3ca560f0b3fd5a50471","Linux >= aaf2e048af2704da5869f27b508b288f36d5c7b7 < 0b4cf43f9ca7118590a338de900edbd6047cd89f","Linux >= aaf2e048af2704da5869f27b508b288f36d5c7b7 < f594863967d87b7fcbff6e724d51135fd701a13d","Linux 5.14"],"published":"2026-09-17","updated":"2026-09-18","sourceUpdated":"2026-09-18T18:17:47.650","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-90228","references":[{"url":"https://git.kernel.org/stable/c/0b4cf43f9ca7118590a338de900edbd6047cd89f","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/1ce8faf90eb0bf5599b90db38500aefea9426485","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/1fb1236312ee1a600de6b3ca560f0b3fd5a50471","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b873099944dae5702b4b6db6814d1f1e8d4cfb00","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/cc29f7082b7ab5e0337f27d1fef16359f05fcffa","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f594863967d87b7fcbff6e724d51135fd701a13d","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ff28a93a895912010a7827a0e1445ebe8be53b4d","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"epss":0.0067,"epssPercentile":0.5055,"ingestedAt":"2026-09-17T16:21:47.853Z","slug":"CVE-2026-90228","body":"## Overview\n\nIn 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->ns->bdev. A file-backed namespace has no block device, so\nreq->ns->bdev 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":207193,"id":"CVE-2026-90228","ts":1789757339527,"field":"cvss","old":null,"new":"7.5"},{"seq":207192,"id":"CVE-2026-90228","ts":1789757339527,"field":"severity","old":"none","new":"high"}]}