github - ghsa-hcgj-x9q4-fj36

ghsa-hcgj-x9q4-fj36

Vulnerability from github

Published

2025-03-12 00:31

Modified

2025-03-12 00:31

Severity ?

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

Details

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

sysctl: Fix data-races in proc_dou8vec_minmax().

A sysctl variable is accessed concurrently, and there is always a chance of data-race. So, all readers and writers need some basic protection to avoid load/store-tearing.

This patch changes proc_dou8vec_minmax() to use READ_ONCE() and WRITE_ONCE() internally to fix data-races on the sysctl side. For now, proc_dou8vec_minmax() itself is tolerant to a data-race, but we still need to add annotations on the other subsystem's side.

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{
  "affected": [],
  "aliases": [
    "CVE-2022-49634"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-362"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-26T07:01:38Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nsysctl: Fix data-races in proc_dou8vec_minmax().\n\nA sysctl variable is accessed concurrently, and there is always a chance\nof data-race.  So, all readers and writers need some basic protection to\navoid load/store-tearing.\n\nThis patch changes proc_dou8vec_minmax() to use READ_ONCE() and\nWRITE_ONCE() internally to fix data-races on the sysctl side.  For now,\nproc_dou8vec_minmax() itself is tolerant to a data-race, but we still\nneed to add annotations on the other subsystem\u0027s side.",
  "id": "GHSA-hcgj-x9q4-fj36",
  "modified": "2025-03-12T00:31:48Z",
  "published": "2025-03-12T00:31:48Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49634"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5f776daef0b5354615ec4b4234cd9539ca05f273"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7dee5d7747a69aa2be41f04c6a7ecfe3ac8cdf18"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e58b02e445463065b4078bf621561da75197853f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f177b382c33900d0e5a9766493c11a1074076f78"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2022-49634 (GCVE-0-2022-49634)

Vulnerability from cvelistv5

Published

2025-02-26 02:23

Modified

2025-10-01 19:36

Severity ?

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

Summary

In the Linux kernel, the following vulnerability has been resolved: sysctl: Fix data-races in proc_dou8vec_minmax(). A sysctl variable is accessed concurrently, and there is always a chance of data-race. So, all readers and writers need some basic protection to avoid load/store-tearing. This patch changes proc_dou8vec_minmax() to use READ_ONCE() and WRITE_ONCE() internally to fix data-races on the sysctl side. For now, proc_dou8vec_minmax() itself is tolerant to a data-race, but we still need to add annotations on the other subsystem's side.

References

▼	URL	Tags
	https://git.kernel.org/stable/c/f177b382c33900d0e5a9766493c11a1074076f78
	https://git.kernel.org/stable/c/e58b02e445463065b4078bf621561da75197853f
	https://git.kernel.org/stable/c/5f776daef0b5354615ec4b4234cd9539ca05f273
	https://git.kernel.org/stable/c/7dee5d7747a69aa2be41f04c6a7ecfe3ac8cdf18

Impacted products

Vendor

Product

Version

▼

Linux

Version: 389dab6142d742f91010f38de0f1f2f440b97e1b
Version: cb9444130662c6c13022579c861098f212db2562
Version: cb9444130662c6c13022579c861098f212db2562
Version: cb9444130662c6c13022579c861098f212db2562

Linux

Version: 5.13

Show details on NVD website

JSON

To clipboard

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        "metrics": [
          {
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              "attackComplexity": "HIGH",
              "attackVector": "LOCAL",
              "availabilityImpact": "HIGH",
              "baseScore": 4.7,
              "baseSeverity": "MEDIUM",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
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              "content": {
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                "options": [
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                  },
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                  },
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                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-10-01T19:34:15.087673Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-362",
                "description": "CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization (\u0027Race Condition\u0027)",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-01T19:36:49.653Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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    ],
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        {
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            {
              "lessThan": "7dee5d7747a69aa2be41f04c6a7ecfe3ac8cdf18",
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        },
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          "versions": [
            {
              "status": "affected",
              "version": "5.13"
            },
            {
              "lessThan": "5.13",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
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              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
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              "status": "unaffected",
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      ],
      "cpeApplicability": [
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                },
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    "cveId": "CVE-2022-49634",
    "datePublished": "2025-02-26T02:23:45.254Z",
    "dateReserved": "2025-02-26T02:21:30.429Z",
    "dateUpdated": "2025-10-01T19:36:49.653Z",
    "state": "PUBLISHED"
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  "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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