github - ghsa-4p6c-9pp4-835h

GHSA-4P6C-9PP4-835H

Vulnerability from github – Published: 2024-11-08 06:30 – Updated: 2025-11-04 00:31

Details

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

drm/vc4: Stop the active perfmon before being destroyed

Upon closing the file descriptor, the active performance monitor is not stopped. Although all perfmons are destroyed in vc4_perfmon_close_file(), the active performance monitor's pointer (vc4->active_perfmon) is still retained.

If we open a new file descriptor and submit a few jobs with performance monitors, the driver will attempt to stop the active performance monitor using the stale pointer in vc4->active_perfmon. However, this pointer is no longer valid because the previous process has already terminated, and all performance monitors associated with it have been destroyed and freed.

To fix this, when the active performance monitor belongs to a given process, explicitly stop it before destroying and freeing it.

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-2024-50187"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-11-08T06:15:15Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/vc4: Stop the active perfmon before being destroyed\n\nUpon closing the file descriptor, the active performance monitor is not\nstopped. Although all perfmons are destroyed in `vc4_perfmon_close_file()`,\nthe active performance monitor\u0027s pointer (`vc4-\u003eactive_perfmon`) is still\nretained.\n\nIf we open a new file descriptor and submit a few jobs with performance\nmonitors, the driver will attempt to stop the active performance monitor\nusing the stale pointer in `vc4-\u003eactive_perfmon`. However, this pointer\nis no longer valid because the previous process has already terminated,\nand all performance monitors associated with it have been destroyed and\nfreed.\n\nTo fix this, when the active performance monitor belongs to a given\nprocess, explicitly stop it before destroying and freeing it.",
  "id": "GHSA-4p6c-9pp4-835h",
  "modified": "2025-11-04T00:31:57Z",
  "published": "2024-11-08T06:30:48Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-50187"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0b2ad4f6f2bec74a5287d96cb2325a5e11706f22"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/75452da51e2403e14be007df80d133e1443fc967"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/937943c042503dc6087438bf3557f9057a588ba0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c9adba739d5f7cdc47a7754df4a17b47b1ecf513"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
    }
  ],
  "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-2024-50187 (GCVE-0-2024-50187)

Vulnerability from cvelistv5 – Published: 2024-11-08 05:38 – Updated: 2025-11-03 22:26

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/vc4: Stop the active perfmon before being destroyed Upon closing the file descriptor, the active performance monitor is not stopped. Although all perfmons are destroyed in `vc4_perfmon_close_file()`, the active performance monitor's pointer (`vc4->active_perfmon`) is still retained. If we open a new file descriptor and submit a few jobs with performance monitors, the driver will attempt to stop the active performance monitor using the stale pointer in `vc4->active_perfmon`. However, this pointer is no longer valid because the previous process has already terminated, and all performance monitors associated with it have been destroyed and freed. To fix this, when the active performance monitor belongs to a given process, explicitly stop it before destroying and freeing it.

Severity ?

5.5 (Medium)


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

CWE

CWE-noinfo Not enough information

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/75452da51e2403e14…
	https://git.kernel.org/stable/c/937943c042503dc60…
	https://git.kernel.org/stable/c/c9adba739d5f7cdc4…
	https://git.kernel.org/stable/c/0b2ad4f6f2bec74a5…

Impacted products

Vendor

Product

Version

Linux

Affected: 65101d8c9108201118efa7e08f4e2c57f438deb9 , < 75452da51e2403e14be007df80d133e1443fc967 (git)
Affected: 65101d8c9108201118efa7e08f4e2c57f438deb9 , < 937943c042503dc6087438bf3557f9057a588ba0 (git)
Affected: 65101d8c9108201118efa7e08f4e2c57f438deb9 , < c9adba739d5f7cdc47a7754df4a17b47b1ecf513 (git)
Affected: 65101d8c9108201118efa7e08f4e2c57f438deb9 , < 0b2ad4f6f2bec74a5287d96cb2325a5e11706f22 (git)

Linux

Affected: 4.17
Unaffected: 0 , < 4.17 (semver)
Unaffected: 6.1.113 , ≤ 6.1.* (semver)
Unaffected: 6.6.57 , ≤ 6.6.* (semver)
Unaffected: 6.11.4 , ≤ 6.11.* (semver)
Unaffected: 6.12 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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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-4P6C-9PP4-835H

CVE-2024-50187 (GCVE-0-2024-50187)

Tags

Sightings

Nomenclature