{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "de85488138247d034eb3241840424a54d660926b"
            },
            {
              "fixed": "4487cf79bf173f2b426a02d102076f8a20d23b96"
            },
            {
              "fixed": "fdee3570b282a6c8699aea63fa5694355e010ec9"
            },
            {
              "fixed": "9be126be5f78bc331a930295af97c9b1f9158f06"
            },
            {
              "fixed": "ec86c43dcfff68eab4db9bdafcd3e2b16e342e18"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.10.0"
            },
            {
              "fixed": "6.12.113"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.57"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.11"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/99xxx/CVE-2026-99003.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/panthor: validate userspace queue count against initialized firmware slot count\n\nIn panthor_drv.c:panthor_ioctl_group_create(),\nthe queue count is validated against the hardcoded maximum:\n\n\tif (!args-\u003equeues.count || args-\u003equeues.count \u003e MAX_CS_PER_CSG)\n\t\treturn -EINVAL;\n\nHowever, if the firmware reports fewer slots than MAX_CS_PER_CSG,\npanthor_fw_init_ifaces() will only initialize that smaller number of\nstream interfaces.\n\nIf unprivileged userspace requests more queues than the firmware reported\n(but no more than MAX_CS_PER_CSG), cs_slot_prog_locked() fetches an\nuninitialized stream interface and may crash when dereferencing\ncs_iface-\u003einput-\u003eringbuf_base.",
  "id": "CVE-2026-99003",
  "modified": "2026-10-28T02:30:25.168531958Z",
  "published": "2026-10-23T12:20:24.476Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4487cf79bf173f2b426a02d102076f8a20d23b96"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9be126be5f78bc331a930295af97c9b1f9158f06"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ec86c43dcfff68eab4db9bdafcd3e2b16e342e18"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fdee3570b282a6c8699aea63fa5694355e010ec9"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/99xxx/CVE-2026-99003.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-99003"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.2",
  "summary": "drm/panthor: validate userspace queue count against initialized firmware slot count"
}