fkie_cve-2025-39869
Vulnerability from fkie_nvd
Published
2025-09-23 06:15
Modified
2025-10-02 14:15
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: dmaengine: ti: edma: Fix memory allocation size for queue_priority_map Fix a critical memory allocation bug in edma_setup_from_hw() where queue_priority_map was allocated with insufficient memory. The code declared queue_priority_map as s8 (*)[2] (pointer to array of 2 s8), but allocated memory using sizeof(s8) instead of the correct size. This caused out-of-bounds memory writes when accessing: queue_priority_map[i][0] = i; queue_priority_map[i][1] = i; The bug manifested as kernel crashes with "Oops - undefined instruction" on ARM platforms (BeagleBoard-X15) during EDMA driver probe, as the memory corruption triggered kernel hardening features on Clang. Change the allocation to use sizeof(*queue_priority_map) which automatically gets the correct size for the 2D array structure.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/069fd1688c57c0cc8a3de64d108579b31676f74b
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1baed10553fc8b388351d8fc803e3ae6f1a863bc
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/301a96cc4dc006c9a285913d301e681cfbf7edb6
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5e462fa0dfdb52b3983cf41532d3d4c7d63e2f93
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7d4de60d6db02d9b01d5890d5156b04fad65d07a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d5e82f3f2c918d446df46e8d65f8083fd97cdec5
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d722de80ce037dccf6931e778f4a46499d51bdf9
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e63419dbf2ceb083c1651852209c7f048089ac0f
Impacted products
Vendor Product Version


To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndmaengine: ti: edma: Fix memory allocation size for queue_priority_map\n\nFix a critical memory allocation bug in edma_setup_from_hw() where\nqueue_priority_map was allocated with insufficient memory. The code\ndeclared queue_priority_map as s8 (*)[2] (pointer to array of 2 s8),\nbut allocated memory using sizeof(s8) instead of the correct size.\n\nThis caused out-of-bounds memory writes when accessing:\n  queue_priority_map[i][0] = i;\n  queue_priority_map[i][1] = i;\n\nThe bug manifested as kernel crashes with \"Oops - undefined instruction\"\non ARM platforms (BeagleBoard-X15) during EDMA driver probe, as the\nmemory corruption triggered kernel hardening features on Clang.\n\nChange the allocation to use sizeof(*queue_priority_map) which\nautomatically gets the correct size for the 2D array structure."
    }
  ],
  "id": "CVE-2025-39869",
  "lastModified": "2025-10-02T14:15:43.823",
  "metrics": {},
  "published": "2025-09-23T06:15:46.097",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/069fd1688c57c0cc8a3de64d108579b31676f74b"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/1baed10553fc8b388351d8fc803e3ae6f1a863bc"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/301a96cc4dc006c9a285913d301e681cfbf7edb6"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/5e462fa0dfdb52b3983cf41532d3d4c7d63e2f93"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/7d4de60d6db02d9b01d5890d5156b04fad65d07a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d5e82f3f2c918d446df46e8d65f8083fd97cdec5"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d722de80ce037dccf6931e778f4a46499d51bdf9"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/e63419dbf2ceb083c1651852209c7f048089ac0f"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}


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.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • 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.