{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "969325a2597ebc4cb001a92992f06f698ab2b467"
            },
            {
              "fixed": "195ab348af4b2bdf5988f9397059317bb68fd797"
            },
            {
              "fixed": "3cc50e7f73fcf79f28660b9d91566b13cb62e520"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "7.0.0"
            },
            {
              "fixed": "7.1.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74422.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/rockchip: inno-hdmi: Switch to drmm_kzalloc()\n\nDriver makes use of drmm_encoder_init() to initialize the encoder and\nautomatically handle the cleanup by registering drm_encoder_cleanup()\nwith drmm_add_action().\n\nHowever, the internal structure containing the encoder part gets\nallocated with devm_kzalloc(), which happens while component_bind_all()\nis being called from Rockchip DRM driver.  The component framework\nfurther ensures it is deallocated as part of releasing all the resources\nclaimed during bind, which is triggered from component_unbind_all().\n\nWhen the reference to the DRM device gets eventually dropped via\ndrm_dev_put() in rockchip_drm_unbind(), drmm_encoder_alloc_release()\nattempts to access the now released encoder structure, leading to\nuse-after-free.\n\nEnsure driver's internal structure is still reachable on encoder cleanup\nby switching from a device-managed allocation to a drm-managed one.",
  "id": "CVE-2026-74422",
  "modified": "2026-08-16T03:31:07.614028670Z",
  "published": "2026-08-15T05:59:25.955Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/195ab348af4b2bdf5988f9397059317bb68fd797"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3cc50e7f73fcf79f28660b9d91566b13cb62e520"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74422.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-74422"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "drm/rockchip: inno-hdmi: Switch to drmm_kzalloc()"
}