ghsa-v57w-fx8g-p4v2
Vulnerability from github
Published
2025-07-25 18:30
Modified
2025-07-25 18:30
Details

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

drm/exynos: exynos7_drm_decon: add vblank check in IRQ handling

If there's support for another console device (such as a TTY serial), the kernel occasionally panics during boot. The panic message and a relevant snippet of the call stack is as follows:

Unable to handle kernel NULL pointer dereference at virtual address 000000000000000 Call trace: drm_crtc_handle_vblank+0x10/0x30 (P) decon_irq_handler+0x88/0xb4 [...]

Otherwise, the panics don't happen. This indicates that it's some sort of race condition.

Add a check to validate if the drm device can handle vblanks before calling drm_crtc_handle_vblank() to avoid this.

Show details on source website

To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2025-38467"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-07-25T16:15:33Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/exynos: exynos7_drm_decon: add vblank check in IRQ handling\n\nIf there\u0027s support for another console device (such as a TTY serial),\nthe kernel occasionally panics during boot. The panic message and a\nrelevant snippet of the call stack is as follows:\n\n  Unable to handle kernel NULL pointer dereference at virtual address 000000000000000\n  Call trace:\n    drm_crtc_handle_vblank+0x10/0x30 (P)\n    decon_irq_handler+0x88/0xb4\n    [...]\n\nOtherwise, the panics don\u0027t happen. This indicates that it\u0027s some sort\nof race condition.\n\nAdd a check to validate if the drm device can handle vblanks before\ncalling drm_crtc_handle_vblank() to avoid this.",
  "id": "GHSA-v57w-fx8g-p4v2",
  "modified": "2025-07-25T18:30:40Z",
  "published": "2025-07-25T18:30:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38467"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/391e5ea5b877230b844c9bd8bbcd91b681b1ce2d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/87825fbd1e176cd5b896940f3959e7c9a916945d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/996740652e620ef8ee1e5c65832cf2ffa498577d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a2130463fc9451005660b0eda7b61d5f746f7d74"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a40a35166f7e4f6dcd4b087d620c8228922dcb0a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b4e72c0bf878f02faa00a7dc7c9ffc4ff7c116a7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b846350aa272de99bf6fecfa6b08e64ebfb13173"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e9d9b25f376737b81f06de9c5aa422b488f47184"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.