GHSA-42P9-M692-HXRC

Vulnerability from github – Published: 2024-02-20 21:30 – Updated: 2024-02-20 21:30
VLAI
Details

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

Revert "md/raid5: Wait for MD_SB_CHANGE_PENDING in raid5d"

This reverts commit 5e2cf333b7bd5d3e62595a44d598a254c697cd74.

That commit introduced the following race and can cause system hung.

md_write_start: raid5d: // mddev->in_sync == 1 set "MD_SB_CHANGE_PENDING" // running before md_write_start wakeup it waiting "MD_SB_CHANGE_PENDING" cleared >>>>>>>>> hung wakeup mddev->thread ... waiting "MD_SB_CHANGE_PENDING" cleared

hung, raid5d should clear this flag but get hung by same flag.

The issue reverted commit fixing is fixed by last patch in a new way.

Show details on source website
To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2023-52437"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-02-20T21:15:08Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nRevert \"md/raid5: Wait for MD_SB_CHANGE_PENDING in raid5d\"\n\nThis reverts commit 5e2cf333b7bd5d3e62595a44d598a254c697cd74.\n\nThat commit introduced the following race and can cause system hung.\n\n md_write_start:             raid5d:\n // mddev-\u003ein_sync == 1\n set \"MD_SB_CHANGE_PENDING\"\n                            // running before md_write_start wakeup it\n                             waiting \"MD_SB_CHANGE_PENDING\" cleared\n                             \u003e\u003e\u003e\u003e\u003e\u003e\u003e\u003e\u003e hung\n wakeup mddev-\u003ethread\n ...\n waiting \"MD_SB_CHANGE_PENDING\" cleared\n \u003e\u003e\u003e\u003e hung, raid5d should clear this flag\n but get hung by same flag.\n\nThe issue reverted commit fixing is fixed by last patch in a new way.",
  "id": "GHSA-42p9-m692-hxrc",
  "modified": "2024-02-20T21:30:26Z",
  "published": "2024-02-20T21:30:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52437"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0de40f76d567133b871cd6ad46bb87afbce46983"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/84c39986fe6dd77aa15f08712339f5d4eb7dbe27"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/87165c64fe1a98bbab7280c58df3c83be2c98478"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/aab69ef769707ad987ff905d79e0bd6591812580"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bed0acf330b2c50c688f6d9cfbcac2aa57a8e613"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bed9e27baf52a09b7ba2a3714f1e24e17ced386d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cfa46838285814c3a27faacf7357f0a65bb5d152"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e16a0bbdb7e590a6607b0d82915add738c03c069"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





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.
  • 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.



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.