Vulnerability-Lookup

FKIE_CVE-2026-23302

Vulnerability from fkie_nvd - Published: 2026-03-25 11:16 - Updated: 2026-03-25 15:41

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: net: annotate data-races around sk->sk_{data_ready,write_space} skmsg (and probably other layers) are changing these pointers while other cpus might read them concurrently. Add corresponding READ_ONCE()/WRITE_ONCE() annotations for UDP, TCP and AF_UNIX.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/27fccdbcbbfc4651b6f66756e6fa3f52e051ec23
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/2ef2b20cf4e04ac8a6ba68493f8780776ff84300
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/f17c1c4acbe2bd702abce73a847a04a196fab2c5

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: annotate data-races around sk-\u003esk_{data_ready,write_space}\n\nskmsg (and probably other layers) are changing these pointers\nwhile other cpus might read them concurrently.\n\nAdd corresponding READ_ONCE()/WRITE_ONCE() annotations\nfor UDP, TCP and AF_UNIX."
    }
  ],
  "id": "CVE-2026-23302",
  "lastModified": "2026-03-25T15:41:33.977",
  "metrics": {},
  "published": "2026-03-25T11:16:25.923",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/27fccdbcbbfc4651b6f66756e6fa3f52e051ec23"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/2ef2b20cf4e04ac8a6ba68493f8780776ff84300"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f17c1c4acbe2bd702abce73a847a04a196fab2c5"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}

CVE-2026-23302 (GCVE-0-2026-23302)

Vulnerability from cvelistv5 – Published: 2026-03-25 10:26 – Updated: 2026-03-25 10:26

Title

net: annotate data-races around sk->sk_{data_ready,write_space}

Summary

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/f17c1c4acbe2bd702…
	https://git.kernel.org/stable/c/27fccdbcbbfc4651b…
	https://git.kernel.org/stable/c/2ef2b20cf4e04ac8a…

Impacted products

Vendor

Product

Version

Linux

Affected: 604326b41a6fb9b4a78b6179335decee0365cd8c , < f17c1c4acbe2bd702abce73a847a04a196fab2c5 (git)
Affected: 604326b41a6fb9b4a78b6179335decee0365cd8c , < 27fccdbcbbfc4651b6f66756e6fa3f52e051ec23 (git)
Affected: 604326b41a6fb9b4a78b6179335decee0365cd8c , < 2ef2b20cf4e04ac8a6ba68493f8780776ff84300 (git)

Linux

Affected: 4.20
Unaffected: 0 , < 4.20 (semver)
Unaffected: 6.18.17 , ≤ 6.18.* (semver)
Unaffected: 6.19.7 , ≤ 6.19.* (semver)
Unaffected: 7.0-rc3 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/core/skmsg.c",
            "net/ipv4/tcp.c",
            "net/ipv4/tcp_bpf.c",
            "net/ipv4/tcp_input.c",
            "net/ipv4/tcp_minisocks.c",
            "net/ipv4/udp.c",
            "net/ipv4/udp_bpf.c",
            "net/unix/af_unix.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "f17c1c4acbe2bd702abce73a847a04a196fab2c5",
              "status": "affected",
              "version": "604326b41a6fb9b4a78b6179335decee0365cd8c",
              "versionType": "git"
            },
            {
              "lessThan": "27fccdbcbbfc4651b6f66756e6fa3f52e051ec23",
              "status": "affected",
              "version": "604326b41a6fb9b4a78b6179335decee0365cd8c",
              "versionType": "git"
            },
            {
              "lessThan": "2ef2b20cf4e04ac8a6ba68493f8780776ff84300",
              "status": "affected",
              "version": "604326b41a6fb9b4a78b6179335decee0365cd8c",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/core/skmsg.c",
            "net/ipv4/tcp.c",
            "net/ipv4/tcp_bpf.c",
            "net/ipv4/tcp_input.c",
            "net/ipv4/tcp_minisocks.c",
            "net/ipv4/udp.c",
            "net/ipv4/udp_bpf.c",
            "net/unix/af_unix.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.20"
            },
            {
              "lessThan": "4.20",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.17",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0-rc3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.17",
                  "versionStartIncluding": "4.20",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.7",
                  "versionStartIncluding": "4.20",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0-rc3",
                  "versionStartIncluding": "4.20",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: annotate data-races around sk-\u003esk_{data_ready,write_space}\n\nskmsg (and probably other layers) are changing these pointers\nwhile other cpus might read them concurrently.\n\nAdd corresponding READ_ONCE()/WRITE_ONCE() annotations\nfor UDP, TCP and AF_UNIX."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-03-25T10:26:57.470Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/f17c1c4acbe2bd702abce73a847a04a196fab2c5"
        },
        {
          "url": "https://git.kernel.org/stable/c/27fccdbcbbfc4651b6f66756e6fa3f52e051ec23"
        },
        {
          "url": "https://git.kernel.org/stable/c/2ef2b20cf4e04ac8a6ba68493f8780776ff84300"
        }
      ],
      "title": "net: annotate data-races around sk-\u003esk_{data_ready,write_space}",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-23302",
    "datePublished": "2026-03-25T10:26:57.470Z",
    "dateReserved": "2026-01-13T15:37:45.993Z",
    "dateUpdated": "2026-03-25T10:26:57.470Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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

FKIE_CVE-2026-23302

CVE-2026-23302 (GCVE-0-2026-23302)

Tags

Sightings

Nomenclature