GHSA-VQPV-2JR8-2HMP

Vulnerability from github – Published: 2026-05-08 15:31 – Updated: 2026-05-15 15:30
VLAI?
Details

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

drm/panel: Fix a possible null-pointer dereference in jdi_panel_dsi_remove()

In jdi_panel_dsi_remove(), jdi is explicitly checked, indicating that it may be NULL:

if (!jdi) mipi_dsi_detach(dsi);

However, when jdi is NULL, the function does not return and continues by calling jdi_panel_disable():

err = jdi_panel_disable(&jdi->base);

Inside jdi_panel_disable(), jdi is dereferenced unconditionally, which can lead to a NULL-pointer dereference:

struct jdi_panel *jdi = to_panel_jdi(panel); backlight_disable(jdi->backlight);

To prevent such a potential NULL-pointer dereference, return early from jdi_panel_dsi_remove() when jdi is NULL.

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-2026-43300"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-08T14:16:37Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/panel: Fix a possible null-pointer dereference in jdi_panel_dsi_remove()\n\nIn jdi_panel_dsi_remove(), jdi is explicitly checked, indicating that it\nmay be NULL:\n\n  if (!jdi)\n    mipi_dsi_detach(dsi);\n\nHowever, when jdi is NULL, the function does not return and continues by\ncalling jdi_panel_disable():\n\n  err = jdi_panel_disable(\u0026jdi-\u003ebase);\n\nInside jdi_panel_disable(), jdi is dereferenced unconditionally, which can\nlead to a NULL-pointer dereference:\n\n  struct jdi_panel *jdi = to_panel_jdi(panel);\n  backlight_disable(jdi-\u003ebacklight);\n\nTo prevent such a potential NULL-pointer dereference, return early from\njdi_panel_dsi_remove() when jdi is NULL.",
  "id": "GHSA-vqpv-2jr8-2hmp",
  "modified": "2026-05-15T15:30:33Z",
  "published": "2026-05-08T15:31:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43300"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2f5427d8726b22b807beec248d7d6bf88e291e0b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/83ce0085fabf757b039322928188ad78e962d609"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/95eed73b871111123a8b1d31cb1fce7e902e49ea"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ec2f37bbb733cdd7ed7d04171fca728a532414d5"
    }
  ],
  "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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