{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "0fc8011f89feb8b2c3008583b777d097e1974660"
            },
            {
              "fixed": "3e04bc310d80b46eaf481f1fefcbcb37a187412d"
            },
            {
              "fixed": "de8d7a25cd2eb5875b1d8d4fbc7fe4b4138b781f"
            },
            {
              "fixed": "b4034442cb090e4a980bdcc1540948606cbc951b"
            },
            {
              "fixed": "4857c37c7ba9aa38b9a4c694e8bd8d0091c87940"
            },
            {
              "fixed": "75fb57efdd7863fffbc39db23e9cad7aafda26ed"
            },
            {
              "fixed": "bfcd6b53e1f4feb182952f4ff9a137c36ceaf20b"
            },
            {
              "fixed": "4e72f419e4ed44cb3b60506752d8688c20a60a9b"
            },
            {
              "fixed": "8a70a26c9f34baea6c3199a9862ddaff4554a96d"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.17.0"
            },
            {
              "fixed": "5.10.252"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.202"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.165"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.128"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.75"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.16"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "6.19.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43206.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdkfd: Fix out-of-bounds write in kfd_event_page_set()\n\nThe kfd_event_page_set() function writes KFD_SIGNAL_EVENT_LIMIT * 8\nbytes via memset without checking the buffer size parameter. This allows\nunprivileged userspace to trigger an out-of bounds kernel memory write\nby passing a small buffer, leading to  potential privilege\nescalation.",
  "id": "CVE-2026-43206",
  "modified": "2026-07-08T05:38:19.745486177Z",
  "published": "2026-05-06T11:28:10.937Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3e04bc310d80b46eaf481f1fefcbcb37a187412d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4857c37c7ba9aa38b9a4c694e8bd8d0091c87940"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4e72f419e4ed44cb3b60506752d8688c20a60a9b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/75fb57efdd7863fffbc39db23e9cad7aafda26ed"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8a70a26c9f34baea6c3199a9862ddaff4554a96d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b4034442cb090e4a980bdcc1540948606cbc951b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bfcd6b53e1f4feb182952f4ff9a137c36ceaf20b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/de8d7a25cd2eb5875b1d8d4fbc7fe4b4138b781f"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43206.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43206"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "drm/amdkfd: Fix out-of-bounds write in kfd_event_page_set()"
}