CVE-2022-49571 (GCVE-0-2022-49571)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:23 – Updated: 2026-05-11 19:02
VLAI
Title
tcp: Fix data-races around sysctl_tcp_max_reordering.
Summary
In the Linux kernel, the following vulnerability has been resolved: tcp: Fix data-races around sysctl_tcp_max_reordering. While reading sysctl_tcp_max_reordering, it can be changed concurrently. Thus, we need to add READ_ONCE() to its readers.
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 (v2.0.3)
CWE
  • CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: dca145ffaa8d39ea1904491ac81b92b7049372c0 , < 5e38cee24f19d19280c68f1ac8bf6790d607f60a (git)
Affected: dca145ffaa8d39ea1904491ac81b92b7049372c0 , < 50a1d3d097503a90cf84ebe120afcde37e9c33b3 (git)
Affected: dca145ffaa8d39ea1904491ac81b92b7049372c0 , < 064852663308c801861bd54789d81421fa4c2928 (git)
Affected: dca145ffaa8d39ea1904491ac81b92b7049372c0 , < ce3731c61589ed73364a5b55ce34131762ef9b60 (git)
Affected: dca145ffaa8d39ea1904491ac81b92b7049372c0 , < 46deb91ac8a790286ad6d24cf92e7ab0ab2582bb (git)
Affected: dca145ffaa8d39ea1904491ac81b92b7049372c0 , < a11e5b3e7a59fde1a90b0eaeaa82320495cf8cae (git)
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Linux Linux Affected: 3.19
Unaffected: 0 , < 3.19 (semver)
Unaffected: 4.19.254 , ≤ 4.19.* (semver)
Unaffected: 5.4.208 , ≤ 5.4.* (semver)
Unaffected: 5.10.134 , ≤ 5.10.* (semver)
Unaffected: 5.15.58 , ≤ 5.15.* (semver)
Unaffected: 5.18.15 , ≤ 5.18.* (semver)
Unaffected: 5.19 , ≤ * (original_commit_for_fix)
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    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 4.7, \"attackVector\": \"LOCAL\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"HIGH\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"NONE\"}}, {\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2022-49571\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-10-01T19:36:46.601176Z\"}}}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-362\", \"description\": \"CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization (\u0027Race Condition\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-10-01T16:50:21.118Z\"}}], \"cna\": {\"title\": \"tcp: Fix data-races around sysctl_tcp_max_reordering.\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"dca145ffaa8d39ea1904491ac81b92b7049372c0\", \"lessThan\": \"5e38cee24f19d19280c68f1ac8bf6790d607f60a\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"dca145ffaa8d39ea1904491ac81b92b7049372c0\", \"lessThan\": \"50a1d3d097503a90cf84ebe120afcde37e9c33b3\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"dca145ffaa8d39ea1904491ac81b92b7049372c0\", \"lessThan\": \"064852663308c801861bd54789d81421fa4c2928\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"dca145ffaa8d39ea1904491ac81b92b7049372c0\", \"lessThan\": \"ce3731c61589ed73364a5b55ce34131762ef9b60\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"dca145ffaa8d39ea1904491ac81b92b7049372c0\", \"lessThan\": \"46deb91ac8a790286ad6d24cf92e7ab0ab2582bb\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"dca145ffaa8d39ea1904491ac81b92b7049372c0\", \"lessThan\": \"a11e5b3e7a59fde1a90b0eaeaa82320495cf8cae\", \"versionType\": \"git\"}], \"programFiles\": [\"net/ipv4/tcp_input.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"3.19\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"3.19\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"4.19.254\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"4.19.*\"}, {\"status\": \"unaffected\", \"version\": \"5.4.208\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.134\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.15.58\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"5.18.15\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.18.*\"}, {\"status\": \"unaffected\", \"version\": \"5.19\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"net/ipv4/tcp_input.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/5e38cee24f19d19280c68f1ac8bf6790d607f60a\"}, {\"url\": \"https://git.kernel.org/stable/c/50a1d3d097503a90cf84ebe120afcde37e9c33b3\"}, {\"url\": \"https://git.kernel.org/stable/c/064852663308c801861bd54789d81421fa4c2928\"}, {\"url\": \"https://git.kernel.org/stable/c/ce3731c61589ed73364a5b55ce34131762ef9b60\"}, {\"url\": \"https://git.kernel.org/stable/c/46deb91ac8a790286ad6d24cf92e7ab0ab2582bb\"}, {\"url\": \"https://git.kernel.org/stable/c/a11e5b3e7a59fde1a90b0eaeaa82320495cf8cae\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\ntcp: Fix data-races around sysctl_tcp_max_reordering.\\n\\nWhile reading sysctl_tcp_max_reordering, it can be changed\\nconcurrently.  Thus, we need to add READ_ONCE() to its readers.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"4.19.254\", \"versionStartIncluding\": \"3.19\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.4.208\", \"versionStartIncluding\": \"3.19\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.10.134\", \"versionStartIncluding\": \"3.19\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.58\", \"versionStartIncluding\": \"3.19\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.18.15\", \"versionStartIncluding\": \"3.19\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.19\", \"versionStartIncluding\": \"3.19\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T19:02:31.527Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-49571\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-11T19:02:31.527Z\", \"dateReserved\": \"2025-02-26T02:21:30.410Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-02-26T02:23:14.182Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Tags
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.