{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "7692e1ee2446fd1940b5caa6e09779504a58881a"
            },
            {
              "fixed": "b7c7f07a40037514f8e890aa00f8d7b196d680cf"
            },
            {
              "fixed": "fc5f845a291fc8175e6857cd6ad042818da192e8"
            },
            {
              "fixed": "37583946d8751f8e285c467d770ac0b609b82a23"
            },
            {
              "fixed": "315c22712715491f0dfafdaf2c2b437540e68702"
            },
            {
              "fixed": "723d4dc628d764b19cf9efca14b82cca5ff020c9"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.6.0"
            },
            {
              "fixed": "6.6.158"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.112"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.54"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98270.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: check ras and obj before dereference\n\nnbio_v7_9_handle_ras_controller_intr_no_bifring() dereferences ras and obj\nwithout checking either for NULL. Both amdgpu_ras_get_context() and\namdgpu_ras_find_obj() can return NULL, e.g. during the window between\nadev-\u003enbio.ras being set (early in amdgpu_ras_init(), by design, to\nenable the fatal-error interrupt as soon as possible) and the PCIE_BIF\nras object actually being created in RAS late_init. Any interrupt in that\nwindow crashes in hard-IRQ context.\n\nThis is analogous to commit d190b459b2a4 (\"drm/amdgpu: the warning\ndereferencing obj for nbio_v7_4\"), which fixed the same issue in the\nnbio_v7_4 handler.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE.\n\n(cherry picked from commit c7071767a50a32ed727cf800ac84372429e3b4b3)",
  "id": "CVE-2026-98270",
  "modified": "2026-10-08T02:31:06.199559763Z",
  "published": "2026-10-06T08:45:32.506Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/315c22712715491f0dfafdaf2c2b437540e68702"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/37583946d8751f8e285c467d770ac0b609b82a23"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/723d4dc628d764b19cf9efca14b82cca5ff020c9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b7c7f07a40037514f8e890aa00f8d7b196d680cf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fc5f845a291fc8175e6857cd6ad042818da192e8"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/98xxx/CVE-2026-98270.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-98270"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "drm/amdgpu: check ras and obj before dereference"
}