{"id":"CVE-2026-90228","revision":"b1659d0bd09e4ae2a034aac43d486f33","records":[{"revision":"b1659d0bd09e4ae2a034aac43d486f33","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-90228","aliases":[],"title":"nvmet: fix NULL pointer dereference in nvmet_execute_identify_ns_zns()","description":"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->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.","state":0,"publishedAt":"2026-09-17T16:07:36.625+00:00","modifiedAt":"2026-10-19T09:00:04.748+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/nvme/target/zns.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"aaf2e048af2704da5869f27b508b288f36d5c7b7\",\n                            \"lessThan\": \"1ce8faf90eb0bf5599b90db38500aefea9426485\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"aaf2e048af2704da5869f27b508b288f36d5c7b7\",\n                            \"lessThan\": \"b873099944dae5702b4b6db6814d1f1e8d4cfb00\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"aaf2e048af2704da5869f27b508b288f36d5c7b7\",\n                            \"lessThan\": \"ff28a93a895912010a7827a0e1445ebe8be53b4d\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"aaf2e048af2704da5869f27b508b288f36d5c7b7\",\n                            \"lessThan\": \"cc29f7082b7ab5e0337f27d1fef16359f05fcffa\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"aaf2e048af2704da5869f27b508b288f36d5c7b7\",\n                            \"lessThan\": \"1fb1236312ee1a600de6b3ca560f0b3fd5a50471\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"aaf2e048af2704da5869f27b508b288f36d5c7b7\",\n                            \"lessThan\": \"0b4cf43f9ca7118590a338de900edbd6047cd89f\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"aaf2e048af2704da5869f27b508b288f36d5c7b7\",\n                            \"lessThan\": \"f594863967d87b7fcbff6e724d51135fd701a13d\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/nvme/target/zns.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5.14\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"5.14\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.221\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.188\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.157\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.110\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.52\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.6\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/1ce8faf90eb0bf5599b90db38500aefea9426485","https://git.kernel.org/stable/c/b873099944dae5702b4b6db6814d1f1e8d4cfb00","https://git.kernel.org/stable/c/ff28a93a895912010a7827a0e1445ebe8be53b4d","https://git.kernel.org/stable/c/cc29f7082b7ab5e0337f27d1fef16359f05fcffa","https://git.kernel.org/stable/c/1fb1236312ee1a600de6b3ca560f0b3fd5a50471","https://git.kernel.org/stable/c/0b4cf43f9ca7118590a338de900edbd6047cd89f","https://git.kernel.org/stable/c/f594863967d87b7fcbff6e724d51135fd701a13d"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-90228","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-90228","identifiers":["CVE-2026-90228"]},"retained":false,"historicalAffected":[]}],"coverage":[]}