github - ghsa-vm8m-g3fg-cr9m

GHSA-VM8M-G3FG-CR9M

Vulnerability from github – Published: 2024-11-19 03:31 – Updated: 2024-11-27 00:31

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.

Severity ?

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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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 (GCVE-0-2024-50270)

Vulnerability from cvelistv5 – Published: 2024-11-19 01:30 – Updated: 2025-10-01 20:17

Summary

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.

Severity ?

5.5 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-190 - Integer Overflow or Wraparound

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/2d339a1f0f16ff5de…
	https://git.kernel.org/stable/c/4401e9d10ab0281a5…

Impacted products

Vendor

Product

Version

Linux

Affected: 9294a037c01564786abb15436529fae3863268a2 , < 2d339a1f0f16ff5dea58e612ff336f0be0d041e9 (git)
Affected: 9294a037c01564786abb15436529fae3863268a2 , < 4401e9d10ab0281a520b9f8c220f30f60b5c248f (git)

Linux

Affected: 6.8
Unaffected: 0 , < 6.8 (semver)
Unaffected: 6.11.8 , ≤ 6.11.* (semver)
Unaffected: 6.12 , ≤ * (original_commit_for_fix)

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JSON

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  "containers": {
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        "metrics": [
          {
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              "attackComplexity": "LOW",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 5.5,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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            }
          },
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            "other": {
              "content": {
                "id": "CVE-2024-50270",
                "options": [
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                    "Exploitation": "none"
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                  },
                  {
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                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-01T20:15:06.851024Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
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      }
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    "cna": {
      "affected": [
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          "product": "Linux",
          "programFiles": [
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              "version": "6.8"
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    "datePublished": "2024-11-19T01:30:08.406Z",
    "dateReserved": "2024-10-21T19:36:19.982Z",
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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.

Action not permitted

GHSA-VM8M-G3FG-CR9M

CVE-2024-50270 (GCVE-0-2024-50270)

Tags

Sightings

Nomenclature