CVE-2024-39293 (GCVE-0-2024-39293)

Vulnerability from cvelistv5 – Published: 2024-06-25 14:22 – Updated: 2026-08-05 11:33
VLAI
Title
Revert "xsk: Support redirect to any socket bound to the same umem"
Summary
In the Linux kernel, the following vulnerability has been resolved: Revert "xsk: Support redirect to any socket bound to the same umem" This reverts commit 2863d665ea41282379f108e4da6c8a2366ba66db. This patch introduced a potential kernel crash when multiple napi instances redirect to the same AF_XDP socket. By removing the queue_index check, it is possible for multiple napi instances to access the Rx ring at the same time, which will result in a corrupted ring state which can lead to a crash when flushing the rings in __xsk_flush(). This can happen when the linked list of sockets to flush gets corrupted by concurrent accesses. A quick and small fix is not possible, so let us revert this for now.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 2863d665ea41282379f108e4da6c8a2366ba66db , < 19cb40b1064566ea09538289bfcf5bc7ecb9b6f5 (git)
Affected: 2863d665ea41282379f108e4da6c8a2366ba66db , < 7fcf26b315bbb728036da0862de6b335da83dff2 (git)
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Linux Linux Affected: 6.9
Unaffected: 0 , < 6.9 (semver)
Unaffected: 6.9.5 , ≤ 6.9.* (semver)
Unaffected: 6.10 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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      "product_status:known_affected": "48",
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    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/stable/c/19cb40b1064566ea09538289bfcf5bc7ecb9b6f5\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/7fcf26b315bbb728036da0862de6b335da83dff2\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-02T04:19:20.676Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-39293\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-06-25T20:47:03.644056Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-06-25T20:47:12.408Z\"}}], \"cna\": {\"title\": \"Revert \\\"xsk: Support redirect to any socket bound to the same umem\\\"\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"2863d665ea41282379f108e4da6c8a2366ba66db\", \"lessThan\": \"19cb40b1064566ea09538289bfcf5bc7ecb9b6f5\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"2863d665ea41282379f108e4da6c8a2366ba66db\", \"lessThan\": \"7fcf26b315bbb728036da0862de6b335da83dff2\", \"versionType\": \"git\"}], \"programFiles\": [\"net/xdp/xsk.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.9\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"6.9\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"6.9.5\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.9.*\"}, {\"status\": \"unaffected\", \"version\": \"6.10\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"net/xdp/xsk.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/19cb40b1064566ea09538289bfcf5bc7ecb9b6f5\"}, {\"url\": \"https://git.kernel.org/stable/c/7fcf26b315bbb728036da0862de6b335da83dff2\"}], \"x_generator\": {\"engine\": \"bippy-5f407fcff5a0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nRevert \\\"xsk: Support redirect to any socket bound to the same umem\\\"\\n\\nThis reverts commit 2863d665ea41282379f108e4da6c8a2366ba66db.\\n\\nThis patch introduced a potential kernel crash when multiple napi instances\\nredirect to the same AF_XDP socket. By removing the queue_index check, it is\\npossible for multiple napi instances to access the Rx ring at the same time,\\nwhich will result in a corrupted ring state which can lead to a crash when\\nflushing the rings in __xsk_flush(). This can happen when the linked list of\\nsockets to flush gets corrupted by concurrent accesses. A quick and small fix\\nis not possible, so let us revert this for now.\"}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-02-27T01:57:24.185Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-39293\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-02-27T01:57:24.185Z\", \"dateReserved\": \"2024-06-24T13:53:25.541Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-06-25T14:22:39.550Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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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.