cve-2024-39293
Vulnerability from cvelistv5
Published
2024-06-25 14:22
Modified
2024-11-05 09:31
Severity ?
EPSS score ?
Summary
Revert "xsk: Support redirect to any socket bound to the same umem"
References
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"timestamp": "2024-06-25T20:47:03.644056Z",
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"dateUpdated": "2024-08-02T04:19:20.676Z",
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"affected": [
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"product": "Linux",
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"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."
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"datePublished": "2024-06-25T14:22:39.550Z",
"dateReserved": "2024-06-24T13:53:25.541Z",
"dateUpdated": "2024-11-05T09:31:39.537Z",
"state": "PUBLISHED"
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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.