GHSA-Q8P5-JH8J-WW29

Vulnerability from github – Published: 2025-04-16 15:34 – Updated: 2025-11-03 21:33
VLAI?
Details

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

LoongArch: Increase ARCH_DMA_MINALIGN up to 16

ARCH_DMA_MINALIGN is 1 by default, but some LoongArch-specific devices (such as APBDMA) require 16 bytes alignment. When the data buffer length is too small, the hardware may make an error writing cacheline. Thus, it is dangerous to allocate a small memory buffer for DMA. It's always safe to define ARCH_DMA_MINALIGN as L1_CACHE_BYTES but unnecessary (kmalloc() need small memory objects). Therefore, just increase it to 16.

Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2025-22049"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-04-16T15:15:58Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nLoongArch: Increase ARCH_DMA_MINALIGN up to 16\n\nARCH_DMA_MINALIGN is 1 by default, but some LoongArch-specific devices\n(such as APBDMA) require 16 bytes alignment. When the data buffer length\nis too small, the hardware may make an error writing cacheline. Thus, it\nis dangerous to allocate a small memory buffer for DMA. It\u0027s always safe\nto define ARCH_DMA_MINALIGN as L1_CACHE_BYTES but unnecessary (kmalloc()\nneed small memory objects). Therefore, just increase it to 16.",
  "id": "GHSA-q8p5-jh8j-ww29",
  "modified": "2025-11-03T21:33:35Z",
  "published": "2025-04-16T15:34:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-22049"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1d0def2d1658666ec1f32c9495df60e7411e3c82"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/279ec25c2df49fba1cd9488f2ddd045d9cb2112e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4103cfe9dcb88010ae4911d3ff417457d1b6a720"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8b82aea3666f8f2c78f86148d78aea99c46e0f82"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bfff341cac7c650e6ca8d10503725992f5564d0f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f39af67f03b564b763b06e44cb960c10a382d54a"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.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"
    }
  ]
}


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 observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • 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.



Detection rules are retrieved from Rulezet.