CVE-2025-40332 (GCVE-0-2025-40332)

Vulnerability from cvelistv5 – Published: 2025-12-09 04:09 – Updated: 2026-05-23 16:02
VLAI
Title
drm/amdkfd: Fix mmap write lock not release
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Fix mmap write lock not release If mmap write lock is taken while draining retry fault, mmap write lock is not released because svm_range_restore_pages calls mmap_read_unlock then returns. This causes deadlock and system hangs later because mmap read or write lock cannot be taken. Downgrade mmap write lock to read lock if draining retry fault fix this bug.
Severity
No CVSS data available.
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6971 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: e64be12f8401819662e608efa247638b61d023cd , < e2105ba1c262dcaa9573f11844b6e1e1ca762c3f (git)
Affected: f844732e3ad9c4b78df7436232949b8d2096d1a6 , < f7569ef1cf978aa87aa81b5e9bf40a77497f3685 (git)
Affected: f844732e3ad9c4b78df7436232949b8d2096d1a6 , < 7574f30337e19045f03126b4c51f525b84e5049e (git)
Affected: 177660d7ecb34298dab5f0d1efc7e8b02f934551 (git)
Affected: 5a3c09bd25cc0a55ec9c048710d379fa2c84b4e7 (git)
Affected: 6.12.24 , < 6.12.58 (semver)
Affected: 6.13.12 , < 6.14 (semver)
Affected: 6.14.3 , < 6.15 (semver)
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Linux Linux Affected: 6.15
Unaffected: 0 , < 6.15 (semver)
Unaffected: 6.12.58 , ≤ 6.12.* (semver)
Unaffected: 6.17.8 , ≤ 6.17.* (semver)
Unaffected: 6.18 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/gpu/drm/amd/amdkfd/kfd_svm.c"
          ],
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              "status": "affected",
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              "versionType": "git"
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              "versionType": "semver"
            },
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              "status": "unaffected",
              "version": "6.18",
              "versionType": "original_commit_for_fix"
            }
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        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
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              "cpeMatch": [
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              "negate": false,
              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdkfd: Fix mmap write lock not release\n\nIf mmap write lock is taken while draining retry fault, mmap write lock\nis not released because svm_range_restore_pages calls mmap_read_unlock\nthen returns. This causes deadlock and system hangs later because mmap\nread or write lock cannot be taken.\n\nDowngrade mmap write lock to read lock if draining retry fault fix this\nbug."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-23T16:02:11.553Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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        },
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        },
        {
          "url": "https://git.kernel.org/stable/c/7574f30337e19045f03126b4c51f525b84e5049e"
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      ],
      "title": "drm/amdkfd: Fix mmap write lock not release",
      "x_generator": {
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      }
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2025-40332",
    "datePublished": "2025-12-09T04:09:49.164Z",
    "dateReserved": "2025-04-16T07:20:57.186Z",
    "dateUpdated": "2026-05-23T16:02:11.553Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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      "date": "2026-11-01",
      "epss": "0.00219",
      "percentile": "0.12429"
    },
    "microsoft_vex": {
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      "cve": "CVE-2025-40332",
      "id": "msrc_CVE-2025-40332",
      "initial_release_date": "2025-12-02T00:00:00.000Z",
      "product_status:known_affected": "3",
      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "drm/amdkfd: Fix mmap write lock not release",
      "url": "https://msrc.microsoft.com/csaf/vex/2025/msrc_cve-2025-40332.json",
      "version": "3"
    },
    "nvd": {
      "cve": {
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            "affectedData": [
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                "product": "Linux",
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                ],
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        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdkfd: Fix mmap write lock not release\n\nIf mmap write lock is taken while draining retry fault, mmap write lock\nis not released because svm_range_restore_pages calls mmap_read_unlock\nthen returns. This causes deadlock and system hangs later because mmap\nread or write lock cannot be taken.\n\nDowngrade mmap write lock to read lock if draining retry fault fix this\nbug."
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ndrm/amdkfd: Correcci\u00f3n: el bloqueo de escritura mmap no se libera\n\nSi se toma el bloqueo de escritura mmap mientras se drena un fallo de reintento, el bloqueo de escritura mmap no se libera porque svm_range_restore_pages llama a mmap_read_unlock y luego retorna. Esto causa un interbloqueo y cuelgues del sistema m\u00e1s tarde porque no se puede tomar el bloqueo de lectura o escritura mmap.\n\nDegradar el bloqueo de escritura mmap a bloqueo de lectura al drenar un fallo de reintento soluciona este error."
          }
        ],
        "id": "CVE-2025-40332",
        "lastModified": "2026-10-14T22:10:00.210",
        "metrics": {},
        "published": "2025-12-09T16:17:43.380",
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      "source": "Red Hat CSAF VEX",
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      "title": "kernel: drm/amdkfd: Fix mmap write lock not release",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-40332.json",
      "version": "3"
    }
  }
}



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