github - ghsa-vm8m-g3fg-cr9m

ghsa-vm8m-g3fg-cr9m

Vulnerability from github

Published

2024-11-19 03:31

Modified

2024-11-27 00:31

Severity ?

5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

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

mm/damon/core: avoid overflow in damon_feed_loop_next_input()

damon_feed_loop_next_input() is inefficient and fragile to overflows. Specifically, 'score_goal_diff_bp' calculation can overflow when 'score' is high. The calculation is actually unnecessary at all because 'goal' is a constant of value 10,000. Calculation of 'compensation' is again fragile to overflow. Final calculation of return value for under-achiving case is again fragile to overflow when the current score is under-achieving the target.

Add two corner cases handling at the beginning of the function to make the body easier to read, and rewrite the body of the function to avoid overflows and the unnecessary bp value calcuation.

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2024-50270"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-190"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-11-19T02:16:29Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/damon/core: avoid overflow in damon_feed_loop_next_input()\n\ndamon_feed_loop_next_input() is inefficient and fragile to overflows. \nSpecifically, \u0027score_goal_diff_bp\u0027 calculation can overflow when \u0027score\u0027\nis high.  The calculation is actually unnecessary at all because \u0027goal\u0027 is\na constant of value 10,000.  Calculation of \u0027compensation\u0027 is again\nfragile to overflow.  Final calculation of return value for under-achiving\ncase is again fragile to overflow when the current score is\nunder-achieving the target.\n\nAdd two corner cases handling at the beginning of the function to make the\nbody easier to read, and rewrite the body of the function to avoid\noverflows and the unnecessary bp value calcuation.",
  "id": "GHSA-vm8m-g3fg-cr9m",
  "modified": "2024-11-27T00:31:41Z",
  "published": "2024-11-19T03:31:07Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-50270"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2d339a1f0f16ff5dea58e612ff336f0be0d041e9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4401e9d10ab0281a520b9f8c220f30f60b5c248f"
    }
  ],
  "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"
    }
  ]
}

cve-2024-50270

Vulnerability from cvelistv5

Published

2024-11-19 01:30

Modified

2024-11-19 01:30

Severity ?

Summary

mm/damon/core: avoid overflow in damon_feed_loop_next_input()

References

▼	URL	Tags
	https://git.kernel.org/stable/c/2d339a1f0f16ff5dea58e612ff336f0be0d041e9
	https://git.kernel.org/stable/c/4401e9d10ab0281a520b9f8c220f30f60b5c248f

Impacted products

Vendor

Product

Version

▼

Linux

Version: 9294a037c015
Version: 9294a037c015

Linux

Version: 6.8

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "mm/damon/core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "2d339a1f0f16",
              "status": "affected",
              "version": "9294a037c015",
              "versionType": "git"
            },
            {
              "lessThan": "4401e9d10ab0",
              "status": "affected",
              "version": "9294a037c015",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "mm/damon/core.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.8"
            },
            {
              "lessThan": "6.8",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.11.*",
              "status": "unaffected",
              "version": "6.11.8",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.12",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/damon/core: avoid overflow in damon_feed_loop_next_input()\n\ndamon_feed_loop_next_input() is inefficient and fragile to overflows. \nSpecifically, \u0027score_goal_diff_bp\u0027 calculation can overflow when \u0027score\u0027\nis high.  The calculation is actually unnecessary at all because \u0027goal\u0027 is\na constant of value 10,000.  Calculation of \u0027compensation\u0027 is again\nfragile to overflow.  Final calculation of return value for under-achiving\ncase is again fragile to overflow when the current score is\nunder-achieving the target.\n\nAdd two corner cases handling at the beginning of the function to make the\nbody easier to read, and rewrite the body of the function to avoid\noverflows and the unnecessary bp value calcuation."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-11-19T01:30:08.406Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/2d339a1f0f16ff5dea58e612ff336f0be0d041e9"
        },
        {
          "url": "https://git.kernel.org/stable/c/4401e9d10ab0281a520b9f8c220f30f60b5c248f"
        }
      ],
      "title": "mm/damon/core: avoid overflow in damon_feed_loop_next_input()",
      "x_generator": {
        "engine": "bippy-8e903de6a542"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-50270",
    "datePublished": "2024-11-19T01:30:08.406Z",
    "dateReserved": "2024-10-21T19:36:19.982Z",
    "dateUpdated": "2024-11-19T01:30:08.406Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

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