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nvmet: fix NULL pointer dereference in nvmet_execute_identify_ns_zns()

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: nvmet: fix NULL pointer dereference in nvmet_execute_identify_ns_zns() When a host issues an Identify command with CNS 05h (I/O Command Set specific Identify Namespace) and CSI 02h (ZNS) targeting a file-backed namespace, nvmet_execute_identify_ns_zns() calls bdev_is_zoned() on req->ns->bdev. A file-backed namespace has no block device, so req->ns->bdev is NULL and bdev_is_zoned() dereferences it, oopsing. The I/O command set is selected by the host-supplied CSI field and the command is routed here whenever CONFIG_BLK_DEV_ZONED is enabled, independent of the namespace backing type, so any file-backed namespace is exposed. Reject the command with Invalid Field when the namespace is not backed by a block device.

Announced Source revision 1
Original source ↗

CVE-2026-90228

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-90228

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "aaf2e048af2704da5869f27b508b288f36d5c7b7",
        "lessThan": "1ce8faf90eb0bf5599b90db38500aefea9426485",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "aaf2e048af2704da5869f27b508b288f36d5c7b7",
        "lessThan": "b873099944dae5702b4b6db6814d1f1e8d4cfb00",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "aaf2e048af2704da5869f27b508b288f36d5c7b7",
        "lessThan": "ff28a93a895912010a7827a0e1445ebe8be53b4d",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "aaf2e048af2704da5869f27b508b288f36d5c7b7",
        "lessThan": "cc29f7082b7ab5e0337f27d1fef16359f05fcffa",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "aaf2e048af2704da5869f27b508b288f36d5c7b7",
        "lessThan": "1fb1236312ee1a600de6b3ca560f0b3fd5a50471",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "aaf2e048af2704da5869f27b508b288f36d5c7b7",
        "lessThan": "0b4cf43f9ca7118590a338de900edbd6047cd89f",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "aaf2e048af2704da5869f27b508b288f36d5c7b7",
        "lessThan": "f594863967d87b7fcbff6e724d51135fd701a13d",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/nvme/target/zns.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "5.14"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "5.14",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.15.221",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.188",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.157",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.110",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.52",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.2.6",
        "versionType": "semver",
        "lessThanOrEqual": "7.2.*"
      },
      {
        "status": "unaffected",
        "version": "7.3",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/nvme/target/zns.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-90228

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#36599 · Revision 1
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Publisher date
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