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CVE-2022-49638 (GCVE-0-2022-49638)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:23 – Updated: 2026-05-11 19:03
VLAI
Title
icmp: Fix data-races around sysctl.
Summary
In the Linux kernel, the following vulnerability has been resolved: icmp: Fix data-races around sysctl. While reading icmp sysctl variables, they can be changed concurrently. So, we need to add READ_ONCE() to avoid data-races.
Severity
4.7 (Medium)
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-01 19:34 UTC
CWE
  • CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 4cdf507d54525842dfd9f6313fdafba039084046 , < 1740e5922fbb705637ae9fa5203db132fc45f9f6 (git)
Affected: 4cdf507d54525842dfd9f6313fdafba039084046 , < 53ecd09ef2fb35fa69667ae8e414ef6b00fd3bf6 (git)
Affected: 4cdf507d54525842dfd9f6313fdafba039084046 , < edeec63b13c252193d626c2a48d7a2f0e7016dc2 (git)
Affected: 4cdf507d54525842dfd9f6313fdafba039084046 , < 0cba7ca667ceb06934746ddd9833a25847bde81d (git)
Affected: 4cdf507d54525842dfd9f6313fdafba039084046 , < e088ceb73c24ab4774da391d54a6426f4bfaefce (git)
Affected: 4cdf507d54525842dfd9f6313fdafba039084046 , < e2828e8c605853f71267825c9415437c0a93e4f2 (git)
Affected: 4cdf507d54525842dfd9f6313fdafba039084046 , < 798c2cf57c63ab39c8aac24d6a3d50f4fa5eeb06 (git)
Affected: 4cdf507d54525842dfd9f6313fdafba039084046 , < 48d7ee321ea5182c6a70782aa186422a70e67e22 (git)
guessed Create a notification for this product.
Linux Linux Affected: 3.18
Unaffected: 0 , < 3.18 (semver)
Unaffected: 4.9.324 , ≤ 4.9.* (semver)
Unaffected: 4.14.289 , ≤ 4.14.* (semver)
Unaffected: 4.19.253 , ≤ 4.19.* (semver)
Unaffected: 5.4.207 , ≤ 5.4.* (semver)
Unaffected: 5.10.132 , ≤ 5.10.* (semver)
Unaffected: 5.15.56 , ≤ 5.15.* (semver)
Unaffected: 5.18.13 , ≤ 5.18.* (semver)
Unaffected: 5.19 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-29T21:13:50+00:00",
      "cve": "CVE-2022-49638",
      "id": "CVE-2022-49638",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:fixed": "201",
      "product_status:known_affected": "112",
      "product_status:known_not_affected": "76",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: icmp: Fix data-races around sysctl.",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-49638.json",
      "version": "3"
    },
    "vulnrichment": {
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      "cveMetadata": "{\"cveId\": \"CVE-2022-49638\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-11T19:03:48.438Z\", \"dateReserved\": \"2025-02-26T02:21:30.429Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-02-26T02:23:47.200Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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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.


Detection rules are retrieved from Rulezet.