github - ghsa-hh88-fx3h-f447

ghsa-hh88-fx3h-f447

Vulnerability from github

Published

2024-04-17 12:32

Modified

2024-04-17 12:32

Details

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

net/mlx5e: Use a memory barrier to enforce PTP WQ xmit submission tracking occurs after populating the metadata_map

Just simply reordering the functions mlx5e_ptp_metadata_map_put and mlx5e_ptpsq_track_metadata in the mlx5e_txwqe_complete context is not good enough since both the compiler and CPU are free to reorder these two functions. If reordering does occur, the issue that was supposedly fixed by 7e3f3ba97e6c ("net/mlx5e: Track xmit submission to PTP WQ after populating metadata map") will be seen. This will lead to NULL pointer dereferences in mlx5e_ptpsq_mark_ts_cqes_undelivered in the NAPI polling context due to the tracking list being populated before the metadata map.

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{
  "affected": [],
  "aliases": [
    "CVE-2024-26858"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-04-17T11:15:08Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5e: Use a memory barrier to enforce PTP WQ xmit submission tracking occurs after populating the metadata_map\n\nJust simply reordering the functions mlx5e_ptp_metadata_map_put and\nmlx5e_ptpsq_track_metadata in the mlx5e_txwqe_complete context is not good\nenough since both the compiler and CPU are free to reorder these two\nfunctions. If reordering does occur, the issue that was supposedly fixed by\n7e3f3ba97e6c (\"net/mlx5e: Track xmit submission to PTP WQ after populating\nmetadata map\") will be seen. This will lead to NULL pointer dereferences in\nmlx5e_ptpsq_mark_ts_cqes_undelivered in the NAPI polling context due to the\ntracking list being populated before the metadata map.",
  "id": "GHSA-hh88-fx3h-f447",
  "modified": "2024-04-17T12:32:04Z",
  "published": "2024-04-17T12:32:04Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-26858"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/936ef086161ab89a7f38f7a0761d6a3063c3277e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b7cf07586c40f926063d4d09f7de28ff82f62b2a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d1f71615dbb305f14f3b756cce015d70d8667549"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

cve-2024-26858

Vulnerability from cvelistv5

Published

2024-04-17 10:17

Modified

2024-11-05 09:17

Severity ?

Summary

net/mlx5e: Use a memory barrier to enforce PTP WQ xmit submission tracking occurs after populating the metadata_map

References

▼	URL	Tags
	https://git.kernel.org/stable/c/d1f71615dbb305f14f3b756cce015d70d8667549
	https://git.kernel.org/stable/c/936ef086161ab89a7f38f7a0761d6a3063c3277e
	https://git.kernel.org/stable/c/b7cf07586c40f926063d4d09f7de28ff82f62b2a

Impacted products

▼	Vendor	Product
	Linux	Linux
	Linux	Linux

Show details on NVD website

JSON

To clipboard

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                  },
                  {
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                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-06-17T17:41:34.337200Z",
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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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