fkie_cve-2025-38012
Vulnerability from fkie_nvd
Published
2025-06-18 10:15
Modified
2025-06-18 13:46
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: sched_ext: bpf_iter_scx_dsq_new() should always initialize iterator BPF programs may call next() and destroy() on BPF iterators even after new() returns an error value (e.g. bpf_for_each() macro ignores error returns from new()). bpf_iter_scx_dsq_new() could leave the iterator in an uninitialized state after an error return causing bpf_iter_scx_dsq_next() to dereference garbage data. Make bpf_iter_scx_dsq_new() always clear $kit->dsq so that next() and destroy() become noops.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0102989af4c334d1d98b2a0fd4d61a5152e39b72
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/255dd31bfc4a67a19b1fc2cd130a50284dadfe3a
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/428dc9fc0873989d73918d4a9cc22745b7bbc799
Impacted products
Vendor Product Version


To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsched_ext: bpf_iter_scx_dsq_new() should always initialize iterator\n\nBPF programs may call next() and destroy() on BPF iterators even after new()\nreturns an error value (e.g. bpf_for_each() macro ignores error returns from\nnew()). bpf_iter_scx_dsq_new() could leave the iterator in an uninitialized\nstate after an error return causing bpf_iter_scx_dsq_next() to dereference\ngarbage data. Make bpf_iter_scx_dsq_new() always clear $kit-\u003edsq so that\nnext() and destroy() become noops."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: sched_ext: bpf_iter_scx_dsq_new() siempre debe inicializar el iterador. Los programas BPF pueden llamar a next() y destroy() en iteradores BPF incluso despu\u00e9s de que new() devuelva un valor de error (p. ej., la macro bpf_for_each() ignora los errores devueltos por new()). bpf_iter_scx_dsq_new() podr\u00eda dejar el iterador sin inicializar despu\u00e9s de un error, lo que provoca que bpf_iter_scx_dsq_next() desreferencia datos innecesarios. Aseg\u00farese de que bpf_iter_scx_dsq_new() siempre borre $kit-\u0026gt;dsq para que next() y destroy() se conviertan en noops."
    }
  ],
  "id": "CVE-2025-38012",
  "lastModified": "2025-06-18T13:46:52.973",
  "metrics": {},
  "published": "2025-06-18T10:15:32.560",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/0102989af4c334d1d98b2a0fd4d61a5152e39b72"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/255dd31bfc4a67a19b1fc2cd130a50284dadfe3a"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/428dc9fc0873989d73918d4a9cc22745b7bbc799"
    }
  ],
  "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.
  • 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.