github - ghsa-rp89-9jxh-73fw

GHSA-RP89-9JXH-73FW

Vulnerability from github – Published: 2024-09-27 15:30 – Updated: 2024-10-01 18:31

Details

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

drm/xe/client: fix deadlock in show_meminfo()

There is a real deadlock as well as sleeping in atomic() bug in here, if the bo put happens to be the last ref, since bo destruction wants to grab the same spinlock and sleeping locks. Fix that by dropping the ref using xe_bo_put_deferred(), and moving the final commit outside of the lock. Dropping the lock around the put is tricky since the bo can go out of scope and delete itself from the list, making it difficult to navigate to the next list entry.

(cherry picked from commit 0083b8e6f11d7662283a267d4ce7c966812ffd8a)

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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{
  "affected": [],
  "aliases": [
    "CVE-2024-46867"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-667"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-09-27T13:15:17Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe/client: fix deadlock in show_meminfo()\n\nThere is a real deadlock as well as sleeping in atomic() bug in here, if\nthe bo put happens to be the last ref, since bo destruction wants to\ngrab the same spinlock and sleeping locks.  Fix that by dropping the ref\nusing xe_bo_put_deferred(), and moving the final commit outside of the\nlock. Dropping the lock around the put is tricky since the bo can go\nout of scope and delete itself from the list, making it difficult to\nnavigate to the next list entry.\n\n(cherry picked from commit 0083b8e6f11d7662283a267d4ce7c966812ffd8a)",
  "id": "GHSA-rp89-9jxh-73fw",
  "modified": "2024-10-01T18:31:17Z",
  "published": "2024-09-27T15:30:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-46867"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9bd7ff293fc84792514aeafa06c5a17f05cb5f4b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9d3de463e23bfb1ff1567a32b099b1b3e5286a48"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2024-46867 (GCVE-0-2024-46867)

Vulnerability from cvelistv5 – Published: 2024-09-27 12:42 – Updated: 2025-05-04 09:36

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/xe/client: fix deadlock in show_meminfo() There is a real deadlock as well as sleeping in atomic() bug in here, if the bo put happens to be the last ref, since bo destruction wants to grab the same spinlock and sleeping locks. Fix that by dropping the ref using xe_bo_put_deferred(), and moving the final commit outside of the lock. Dropping the lock around the put is tricky since the bo can go out of scope and delete itself from the list, making it difficult to navigate to the next list entry. (cherry picked from commit 0083b8e6f11d7662283a267d4ce7c966812ffd8a)

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/9d3de463e23bfb1ff…
	https://git.kernel.org/stable/c/9bd7ff293fc847925…

Impacted products

Vendor

Product

Version

Linux

Affected: 0845233388f8a26d00acf9bf230cfd4f36aa4c30 , < 9d3de463e23bfb1ff1567a32b099b1b3e5286a48 (git)
Affected: 0845233388f8a26d00acf9bf230cfd4f36aa4c30 , < 9bd7ff293fc84792514aeafa06c5a17f05cb5f4b (git)

Linux

Affected: 6.8
Unaffected: 0 , < 6.8 (semver)
Unaffected: 6.10.11 , ≤ 6.10.* (semver)
Unaffected: 6.11 , ≤ * (original_commit_for_fix)

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                "id": "CVE-2024-46867",
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                "timestamp": "2024-09-29T13:36:32.110545Z",
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Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-RP89-9JXH-73FW

CVE-2024-46867 (GCVE-0-2024-46867)

Tags

Sightings

Nomenclature