GHSA-V57W-FX8G-P4V2
Vulnerability from github – Published: 2025-07-25 18:30 – Updated: 2025-12-22 21:30
VLAI
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.
Severity
5.5 (Medium)
{
"affected": [],
"aliases": [
"CVE-2025-38467"
],
"database_specific": {
"cwe_ids": [
"CWE-476"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-07-25T16:15:33Z",
"severity": "MODERATE"
},
"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": "2025-12-22T21:30:30Z",
"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"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
}
],
"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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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
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- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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