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CVE-2022-49344 (GCVE-0-2022-49344)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:11 – Updated: 2026-05-23 15:21
VLAI
Title
af_unix: Fix a data-race in unix_dgram_peer_wake_me().
Summary
In the Linux kernel, the following vulnerability has been resolved: af_unix: Fix a data-race in unix_dgram_peer_wake_me(). unix_dgram_poll() calls unix_dgram_peer_wake_me() without `other`'s lock held and check if its receive queue is full. Here we need to use unix_recvq_full_lockless() instead of unix_recvq_full(), otherwise KCSAN will report a data-race.
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 19:42 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: 7d267278a9ece963d77eefec61630223fce08c6c , < 95f0ba806277733bf6024e23e27e1be773701cca (git)
Affected: 7d267278a9ece963d77eefec61630223fce08c6c , < 556720013c36c193d9cbfb06e7b33e51f0c39fbf (git)
Affected: 7d267278a9ece963d77eefec61630223fce08c6c , < c61848500a3fd6867dfa4834b8c7f97133eceb9f (git)
Affected: 7d267278a9ece963d77eefec61630223fce08c6c , < c926ae58f24f7bd55aa2ea4add9f952032507913 (git)
Affected: 7d267278a9ece963d77eefec61630223fce08c6c , < 71e8bfc7f838cabc60cba24e09ca84c4f8321ab2 (git)
Affected: 7d267278a9ece963d77eefec61630223fce08c6c , < 8801eb3ccd2e4e3b1a01449383e3321ae6dbd9d6 (git)
Affected: 7d267278a9ece963d77eefec61630223fce08c6c , < 662a80946ce13633ae90a55379f1346c10f0c432 (git)
Affected: 60bc010667ef06e0fb08d5ec599c0977adc2ac72 (git)
Affected: a3b0f6e8a21ef02f69a15abac440572d8cde8c2a (git)
Affected: ec54d5ae9d298abf01c273233de9f2bc25d80475 (git)
Affected: da8db0830a2ce63f628150307a01a315f5081202 (git)
Affected: 9964b4c4ee925b2910723e509abd7241cff1ef84 (git)
Affected: 9d054f57adc981a5f503d5eb9b259aa450b90dc5 (git)
Affected: 72032798034d921ed565e3bf8dfdc3098f6473e2 (git)
Affected: 5c77e26862ce604edea05b3442ed765e9756fe0f (git)
Affected: bad967fdd8ecbdd171f5f243657be033d2d081a7 (git)
Affected: 58a6a46a036ce81a2a8ecaa6fc1537c894349e3f (git)
Affected: 2.6.32.70 , < 2.6.33 (semver)
Affected: 3.2.75 , < 3.3 (semver)
Affected: 3.4.111 , < 3.5 (semver)
Affected: 3.10.95 , < 3.11 (semver)
Affected: 3.12.52 , < 3.13 (semver)
Affected: 3.14.59 , < 3.15 (semver)
Affected: 3.18.26 , < 3.19 (semver)
Affected: 4.1.15 , < 4.2 (semver)
Affected: 4.2.8 , < 4.3 (semver)
Affected: 4.3.3 , < 4.4 (semver)
guessed Create a notification for this product.
Linux Linux Affected: 4.4
Unaffected: 0 , < 4.4 (semver)
Unaffected: 4.19.247 , ≤ 4.19.* (semver)
Unaffected: 5.4.198 , ≤ 5.4.* (semver)
Unaffected: 5.10.122 , ≤ 5.10.* (semver)
Unaffected: 5.15.47 , ≤ 5.15.* (semver)
Unaffected: 5.17.15 , ≤ 5.17.* (semver)
Unaffected: 5.18.4 , ≤ 5.18.* (semver)
Unaffected: 5.19 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "4.4"
                },
                {
                  "lessThan": "4.4",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "4.19.*",
                  "status": "unaffected",
                  "version": "4.19.247",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.4.*",
                  "status": "unaffected",
                  "version": "5.4.198",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.10.*",
                  "status": "unaffected",
                  "version": "5.10.122",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.15.*",
                  "status": "unaffected",
                  "version": "5.15.47",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.17.*",
                  "status": "unaffected",
                  "version": "5.17.15",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.18.*",
                  "status": "unaffected",
                  "version": "5.18.4",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "5.19",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "4.19.247",
                      "versionStartIncluding": "4.4",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.4.198",
                      "versionStartIncluding": "4.4",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.10.122",
                      "versionStartIncluding": "4.4",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.15.47",
                      "versionStartIncluding": "4.4",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.17.15",
                      "versionStartIncluding": "4.4",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.18.4",
                      "versionStartIncluding": "4.4",
                      "vulnerable": true
                    },
                    {
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                      "versionEndExcluding": "5.19",
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                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionStartIncluding": "2.6.32.70",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionStartIncluding": "3.2.75",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionStartIncluding": "3.4.111",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                      "vulnerable": true
                    },
                    {
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                      "versionStartIncluding": "3.12.52",
                      "vulnerable": true
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                    {
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                      "versionStartIncluding": "3.14.59",
                      "vulnerable": true
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                      "vulnerable": true
                    },
                    {
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                      "vulnerable": true
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                    {
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                      "vulnerable": true
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                  ],
                  "negate": false,
                  "operator": "OR"
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              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\naf_unix: Fix a data-race in unix_dgram_peer_wake_me().\n\nunix_dgram_poll() calls unix_dgram_peer_wake_me() without `other`\u0027s\nlock held and check if its receive queue is full.  Here we need to\nuse unix_recvq_full_lockless() instead of unix_recvq_full(), otherwise\nKCSAN will report a data-race."
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-05-23T15:21:57.333Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/95f0ba806277733bf6024e23e27e1be773701cca"
            },
            {
              "url": "https://git.kernel.org/stable/c/556720013c36c193d9cbfb06e7b33e51f0c39fbf"
            },
            {
              "url": "https://git.kernel.org/stable/c/c61848500a3fd6867dfa4834b8c7f97133eceb9f"
            },
            {
              "url": "https://git.kernel.org/stable/c/c926ae58f24f7bd55aa2ea4add9f952032507913"
            },
            {
              "url": "https://git.kernel.org/stable/c/71e8bfc7f838cabc60cba24e09ca84c4f8321ab2"
            },
            {
              "url": "https://git.kernel.org/stable/c/8801eb3ccd2e4e3b1a01449383e3321ae6dbd9d6"
            },
            {
              "url": "https://git.kernel.org/stable/c/662a80946ce13633ae90a55379f1346c10f0c432"
            }
          ],
          "title": "af_unix: Fix a data-race in unix_dgram_peer_wake_me().",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2022-49344",
        "datePublished": "2025-02-26T02:11:00.498Z",
        "dateReserved": "2025-02-26T02:08:31.542Z",
        "dateUpdated": "2026-05-23T15:21:57.333Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.