{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "be93e87e780253780df9bb6ecc9bc1199b0d94c3"
            },
            {
              "fixed": "351d1c47e45b2b35780d0548b1012d7242ba298d"
            },
            {
              "fixed": "72ece656abd4de8645a421fb482d7a11e6533a45"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.9.0"
            },
            {
              "fixed": "7.2.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98814.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvme: fix command effects log lifetime for multipath heads\n\nKASAN reported a use-after-free when an I/O passthrough command was sent\nthrough a multipath namespace head after the controller path that first\ncreated the head had been removed:\n\n  BUG: KASAN: slab-use-after-free in nvme_command_effects+0x192/0x200 [nvme_core]\n  Read of size 4 at addr ffff888141b14400 by task nvme/19811\n  nvme_command_effects+0x192/0x200 [nvme_core]\n  nvme_cmd_allowed+0x7e/0x1b0 [nvme_core]\n  nvme_user_cmd.constprop.0+0x1b5/0x450 [nvme_core]\n  nvme_ns_head_chr_ioctl+0xf4/0x2a0 [nvme_core]\n\nMove the log cache to the subsystem, with one entry per command set. Both\ncontrollers and namespace heads hold subsystem references, keeping their\nlog pointers valid until subsystem release.",
  "id": "CVE-2026-98814",
  "modified": "2026-10-19T02:30:41.274124806Z",
  "published": "2026-10-18T15:49:01.538Z",
  "references": [
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/351d1c47e45b2b35780d0548b1012d7242ba298d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/72ece656abd4de8645a421fb482d7a11e6533a45"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98814.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98814"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "nvme: fix command effects log lifetime for multipath heads"
}