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GHSA-9FX9-J289-P7F2

Vulnerability from github – Published: 2024-02-27 09:31 – Updated: 2024-04-10 15:30

Details

In the Linux kernel, the following vulnerability has been resolved:

ixgbe: Fix NULL pointer dereference in ethtool loopback test

The ixgbe driver currently generates a NULL pointer dereference when performing the ethtool loopback test. This is due to the fact that there isn't a q_vector associated with the test ring when it is setup as interrupts are not normally added to the test rings.

To address this I have added code that will check for a q_vector before returning a napi_id value. If a q_vector is not present it will return a value of 0.

Severity

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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  "aliases": [
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  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nixgbe: Fix NULL pointer dereference in ethtool loopback test\n\nThe ixgbe driver currently generates a NULL pointer dereference when\nperforming the ethtool loopback test. This is due to the fact that there\nisn\u0027t a q_vector associated with the test ring when it is setup as\ninterrupts are not normally added to the test rings.\n\nTo address this I have added code that will check for a q_vector before\nreturning a napi_id value. If a q_vector is not present it will return a\nvalue of 0.",
  "id": "GHSA-9fx9-j289-p7f2",
  "modified": "2024-04-10T15:30:31Z",
  "published": "2024-02-27T09:31:16Z",
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}

CVE-2021-46916 (GCVE-0-2021-46916)

Vulnerability from cvelistv5 – Published: 2024-02-27 06:53 – Updated: 2026-05-11 13:44

Title

ixgbe: Fix NULL pointer dereference in ethtool loopback test

Summary

In the Linux kernel, the following vulnerability has been resolved: ixgbe: Fix NULL pointer dereference in ethtool loopback test The ixgbe driver currently generates a NULL pointer dereference when performing the ethtool loopback test. This is due to the fact that there isn't a q_vector associated with the test ring when it is setup as interrupts are not normally added to the test rings. To address this I have added code that will check for a q_vector before returning a napi_id value. If a q_vector is not present it will return a value of 0.

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-09-10 16:02 UTC

Assigner

Linux mitre root

References

2 references

URL	Tags
https://git.kernel.org/stable/c/758d19098df4b0bbc…
https://git.kernel.org/stable/c/31166efb1cee348eb…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: b02e5a0ebb172c8276cea3151942aac681f7a4a6 , < 758d19098df4b0bbca9f40d6ae6c82c9c18b9bba (git) Affected: b02e5a0ebb172c8276cea3151942aac681f7a4a6 , < 31166efb1cee348eb6314e9c0095d84cbeb66b9d (git)
Linux	Linux	Affected: 5.11 Unaffected: 0 , < 5.11 (semver) Unaffected: 5.11.16 , ≤ 5.11.* (semver) Unaffected: 5.12 , ≤ * (original_commit_for_fix)

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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.

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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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GHSA-9FX9-J289-P7F2

CVE-2021-46916 (GCVE-0-2021-46916)

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