GHSA-443G-XXFV-37VX

Vulnerability from github – Published: 2025-03-27 18:31 – Updated: 2025-04-15 18:31
VLAI?
Details

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

mm/swapfile: add cond_resched() in get_swap_pages()

The softlockup still occurs in get_swap_pages() under memory pressure. 64 CPU cores, 64GB memory, and 28 zram devices, the disksize of each zram device is 50MB with same priority as si. Use the stress-ng tool to increase memory pressure, causing the system to oom frequently.

The plist_for_each_entry_safe() loops in get_swap_pages() could reach tens of thousands of times to find available space (extreme case: cond_resched() is not called in scan_swap_map_slots()). Let's add cond_resched() into get_swap_pages() when failed to find available space to avoid softlockup.

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-2023-52932"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-667"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-03-27T17:15:42Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/swapfile: add cond_resched() in get_swap_pages()\n\nThe softlockup still occurs in get_swap_pages() under memory pressure.  64\nCPU cores, 64GB memory, and 28 zram devices, the disksize of each zram\ndevice is 50MB with same priority as si.  Use the stress-ng tool to\nincrease memory pressure, causing the system to oom frequently.\n\nThe plist_for_each_entry_safe() loops in get_swap_pages() could reach tens\nof thousands of times to find available space (extreme case:\ncond_resched() is not called in scan_swap_map_slots()).  Let\u0027s add\ncond_resched() into get_swap_pages() when failed to find available space\nto avoid softlockup.",
  "id": "GHSA-443g-xxfv-37vx",
  "modified": "2025-04-15T18:31:42Z",
  "published": "2025-03-27T18:31:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52932"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/29f0349c5c76b627fe06b87d4b13fa03a6ce8e64"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/30187be29052bba9203b0ae2bdd815e0bc2faaab"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/387217b97e99699c34e6d95ce2b91b327fcd853e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/49178d4d61e78aed8c837dfeea8a450700f196e2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5dbe1ebd56470d03b78fc31491a9e4d433106ef2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7717fc1a12f88701573f9ed897cc4f6699c661e3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d49c85a1913385eed46dd16a25ad0928253767f0"
    }
  ],
  "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.