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CVE-2021-47248 udp: fix race between close() and udp_abort()

🗓️ 21 May 2024 14:19:45Reported by LinuxType 
cvelist
 cvelist🔗 www.cve.org👁 14 Views

CVE-2021-47248 udp: fix race between close() and udp_abort(). Kaustubh reported and diagnosed a panic in udp_lib_lookup() due to a race condition

Related
Affected
Refs
ReporterTitlePublishedViews
Family
Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2-2021-1685 (ALAS-2021-1685)
16 Jul 202100:00
–nessus
Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.10-2022-002 (ALASKERNEL-5.10-2022-002)
2 May 202200:00
–nessus
Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.4-2022-004 (ALASKERNEL-5.4-2022-004)
2 May 202200:00
–nessus
Tenable Nessus		EulerOS 2.0 SP9 : kernel (EulerOS-SA-2024-2394)
12 Sep 202400:00
–nessus
Tenable Nessus		SUSE SLES12 Security Update : kernel (SUSE-SU-2024:1979-1)
12 Jun 202400:00
–nessus
Tenable Nessus		SUSE SLES12 Security Update : kernel (SUSE-SU-2024:1983-1)
12 Jun 202400:00
–nessus
Tenable Nessus		SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2024:2184-1)
25 Jun 202400:00
–nessus
Tenable Nessus		SUSE SLES15 Security Update : kernel (SUSE-SU-2025:1263-1)
16 Apr 202500:00
–nessus
Tenable Nessus		TencentOS Server 3: kernel (TSSA-2024:1028)
16 Jun 202500:00
–nessus
Tenable Nessus		TencentOS Server 2: kernel (TSSA-2024:1029)
16 Jun 202500:00
–nessus
Rows per page
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/ipv4/udp.c",
      "net/ipv6/udp.c"
    ],
    "versions": [
      {
        "version": "5d77dca82839ef016a93ad7acd7058b14d967752",
        "lessThan": "e3c36c773aed0fef8b1d3d555b43393ec564400f",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5d77dca82839ef016a93ad7acd7058b14d967752",
        "lessThan": "a0882f68f54f7a8b6308261acee9bd4faab5a69e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5d77dca82839ef016a93ad7acd7058b14d967752",
        "lessThan": "2f73448041bd0682d4b552cfd314ace66107f1ad",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5d77dca82839ef016a93ad7acd7058b14d967752",
        "lessThan": "5a88477c1c85e4baa51e91f2d40f2166235daa56",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5d77dca82839ef016a93ad7acd7058b14d967752",
        "lessThan": "8729ec8a2238152a4afc212a331a6cd2c61aeeac",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5d77dca82839ef016a93ad7acd7058b14d967752",
        "lessThan": "65310b0aff86980a011c7c7bfa487a333d4ca241",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5d77dca82839ef016a93ad7acd7058b14d967752",
        "lessThan": "a8b897c7bcd47f4147d066e22cc01d1026d7640e",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/ipv4/udp.c",
      "net/ipv6/udp.c"
    ],
    "versions": [
      {
        "version": "4.9",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.9",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "4.9.274",
        "lessThanOrEqual": "4.9.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "4.14.238",
        "lessThanOrEqual": "4.14.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "4.19.196",
        "lessThanOrEqual": "4.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.4.128",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.46",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.12.13",
        "lessThanOrEqual": "5.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.13",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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11 May 2026 13:50Current
6.4Medium risk
Vulners AI Score6.4
EPSS0.00179
linux kernelvulnerabilityudp fixrace conditionsocket lock
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