github - ghsa-vhxr-pcmq-x8rc

ghsa-vhxr-pcmq-x8rc

Vulnerability from github

Published

2024-06-25 15:31

Modified

2024-06-25 15:31

Details

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.

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{
  "affected": [],
  "aliases": [
    "CVE-2024-39293"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-06-25T15:15:13Z",
    "severity": null
  },
  "details": "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.",
  "id": "GHSA-vhxr-pcmq-x8rc",
  "modified": "2024-06-25T15:31:09Z",
  "published": "2024-06-25T15:31:09Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-39293"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/19cb40b1064566ea09538289bfcf5bc7ecb9b6f5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7fcf26b315bbb728036da0862de6b335da83dff2"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

cve-2024-39293

Vulnerability from cvelistv5

Published

2024-06-25 14:22

Modified

2024-11-05 09:31

Severity ?

Summary

Revert "xsk: Support redirect to any socket bound to the same umem"

References

▼	URL	Tags
	https://git.kernel.org/stable/c/19cb40b1064566ea09538289bfcf5bc7ecb9b6f5
	https://git.kernel.org/stable/c/7fcf26b315bbb728036da0862de6b335da83dff2

Impacted products

▼	Vendor	Product
	Linux	Linux
	Linux	Linux

Show details on NVD website

JSON

To clipboard

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                "timestamp": "2024-06-25T20:47:03.644056Z",
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    "datePublished": "2024-06-25T14:22:39.550Z",
    "dateReserved": "2024-06-24T13:53:25.541Z",
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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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