Vulnerability-Lookup

GHSA-MRV3-46FP-R6HH

Vulnerability from github – Published: 2026-06-25 09:31 – Updated: 2026-07-06 15:30

Details

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

drm/v3d: Fix vaddr leak when indirect CSD has zeroed workgroups

v3d_rewrite_csd_job_wg_counts_from_indirect() maps both the indirect buffer and the workgroup buffer and is expected to release them before returning. When any of the workgroup counts read from the buffer is zero, the function bailed out early and skipped the cleanup, leaking the vaddr mappings of both BOs.

Jump to the cleanup path instead of returning directly, so the mappings are always dropped.

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-2026-53140"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-25T09:16:31Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/v3d: Fix vaddr leak when indirect CSD has zeroed workgroups\n\nv3d_rewrite_csd_job_wg_counts_from_indirect() maps both the indirect\nbuffer and the workgroup buffer and is expected to release them before\nreturning. When any of the workgroup counts read from the buffer is zero,\nthe function bailed out early and skipped the cleanup, leaking the vaddr\nmappings of both BOs.\n\nJump to the cleanup path instead of returning directly, so the mappings\nare always dropped.",
  "id": "GHSA-mrv3-46fp-r6hh",
  "modified": "2026-07-06T15:30:41Z",
  "published": "2026-06-25T09:31:18Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53140"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0b59d0946913a0df7d1a033013e259e9b6a76546"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/60ebeb23eaf3d7fd2e0551fe304309305e31d424"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/90b629269088a9fe24a02c032be9f08357f47873"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ae7676952790f421c40918e2586a2c9f12a682b6"
    }
  ],
  "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-2026-53140 (GCVE-0-2026-53140)

Vulnerability from cvelistv5 – Published: 2026-06-25 08:38 – Updated: 2026-06-25 08:38

Title

drm/v3d: Fix vaddr leak when indirect CSD has zeroed workgroups

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/v3d: Fix vaddr leak when indirect CSD has zeroed workgroups v3d_rewrite_csd_job_wg_counts_from_indirect() maps both the indirect buffer and the workgroup buffer and is expected to release them before returning. When any of the workgroup counts read from the buffer is zero, the function bailed out early and skipped the cleanup, leaking the vaddr mappings of both BOs. Jump to the cleanup path instead of returning directly, so the mappings are always dropped.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

4 references

URL	Tags
https://git.kernel.org/stable/c/0b59d0946913a0df7…
https://git.kernel.org/stable/c/90b629269088a9fe2…
https://git.kernel.org/stable/c/60ebeb23eaf3d7fd2…
https://git.kernel.org/stable/c/ae7676952790f421c…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 18b8413b25b7070fa2e55858a2c808e6909581d0 , < 0b59d0946913a0df7d1a033013e259e9b6a76546 (git) Affected: 18b8413b25b7070fa2e55858a2c808e6909581d0 , < 90b629269088a9fe24a02c032be9f08357f47873 (git) Affected: 18b8413b25b7070fa2e55858a2c808e6909581d0 , < 60ebeb23eaf3d7fd2e0551fe304309305e31d424 (git) Affected: 18b8413b25b7070fa2e55858a2c808e6909581d0 , < ae7676952790f421c40918e2586a2c9f12a682b6 (git)
Linux	Linux	Affected: 6.8 Unaffected: 0 , < 6.8 (semver) Unaffected: 6.12.94 , ≤ 6.12.* (semver) Unaffected: 6.18.36 , ≤ 6.18.* (semver) Unaffected: 7.0.13 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)

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{
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        {
          "defaultStatus": "unaffected",
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          "programFiles": [
            "drivers/gpu/drm/v3d/v3d_sched.c"
          ],
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              "versionType": "git"
            },
            {
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          "versions": [
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    "dateReserved": "2026-06-09T07:44:35.387Z",
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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.

Detection rules are retrieved from Rulezet.

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