GHSA-72V5-9FV6-XVR9

Vulnerability from github – Published: 2026-05-06 12:30 – Updated: 2026-05-08 21:31
VLAI?
Details

In the Linux kernel, the following vulnerability has been resolved:

fbdev: of: display_timing: fix refcount leak in of_get_display_timings()

of_parse_phandle() returns a device_node with refcount incremented, which is stored in 'entry' and then copied to 'native_mode'. When the error paths at lines 184 or 192 jump to 'entryfail', native_mode's refcount is not decremented, causing a refcount leak.

Fix this by changing the goto target from 'entryfail' to 'timingfail', which properly calls of_node_put(native_mode) before cleanup.

Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2026-43264"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-06T12:16:47Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nfbdev: of: display_timing: fix refcount leak in of_get_display_timings()\n\nof_parse_phandle() returns a device_node with refcount incremented,\nwhich is stored in \u0027entry\u0027 and then copied to \u0027native_mode\u0027. When the\nerror paths at lines 184 or 192 jump to \u0027entryfail\u0027, native_mode\u0027s\nrefcount is not decremented, causing a refcount leak.\n\nFix this by changing the goto target from \u0027entryfail\u0027 to \u0027timingfail\u0027,\nwhich properly calls of_node_put(native_mode) before cleanup.",
  "id": "GHSA-72v5-9fv6-xvr9",
  "modified": "2026-05-08T21:31:21Z",
  "published": "2026-05-06T12:30:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43264"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/20881ad42e651c69d89eb38a2042838187900fd6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2b22e4fe1273c24f405ed7903349c4bbd82b6368"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3ed019654234edb8625c05d05e15d40f74e64f70"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/69290f2d3999c5fa1a7f5d5593cfc5461fa3ee64"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b5bdcc5afbff845834d04d651773cb6b47db5dd3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c5734f9030a8b1e13868d1641b5163d8e659306e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d6f34bbff07476c6abb8672c89d217824871c5ed"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/eacf9840ae1285a1ef47eb0ce16d786e542bd4d7"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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