FKIE_CVE-2025-40062

Vulnerability from fkie_nvd - Published: 2025-10-28 12:15 - Updated: 2026-06-17 09:21
Severity
Summary
In the Linux kernel, the following vulnerability has been resolved: crypto: hisilicon/qm - set NULL to qm->debug.qm_diff_regs When the initialization of qm->debug.acc_diff_reg fails, the probe process does not exit. However, after qm->debug.qm_diff_regs is freed, it is not set to NULL. This can lead to a double free when the remove process attempts to free it again. Therefore, qm->debug.qm_diff_regs should be set to NULL after it is freed.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1750f1ec143ebabdbdfa013668665c9d5042c430
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7226a0650ad5705bd8d39a11be270fa21ed1e6a5
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a7836260d5121949ba734e840d42a86ab4a32fcc
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a87a21a56244b8f4eb357f6bad879247005bbe38
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f0cafb02de883b3b413d34eb079c9680782a9cc1
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/crypto/hisilicon/debugfs.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "a7836260d5121949ba734e840d42a86ab4a32fcc",
              "status": "affected",
              "version": "eda60520cfe3aba9f088c68ebd5bcbca9fc6ac3c",
              "versionType": "git"
            },
            {
              "lessThan": "1750f1ec143ebabdbdfa013668665c9d5042c430",
              "status": "affected",
              "version": "7fc8d9a525b5c3f8dfa5ed50901e764d8ede7e1e",
              "versionType": "git"
            },
            {
              "lessThan": "a87a21a56244b8f4eb357f6bad879247005bbe38",
              "status": "affected",
              "version": "8be0913389718e8d27c4f1d4537b5e1b99ed7739",
              "versionType": "git"
            },
            {
              "lessThan": "7226a0650ad5705bd8d39a11be270fa21ed1e6a5",
              "status": "affected",
              "version": "8be0913389718e8d27c4f1d4537b5e1b99ed7739",
              "versionType": "git"
            },
            {
              "lessThan": "f0cafb02de883b3b413d34eb079c9680782a9cc1",
              "status": "affected",
              "version": "8be0913389718e8d27c4f1d4537b5e1b99ed7739",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "e0a2d2df9ba7bd6bd7e0a9b6a5e3894f7e8445b3",
              "versionType": "git"
            },
            {
              "lessThan": "6.1.156",
              "status": "affected",
              "version": "6.1.98",
              "versionType": "semver"
            },
            {
              "lessThan": "6.6.112",
              "status": "affected",
              "version": "6.6.39",
              "versionType": "semver"
            },
            {
              "lessThan": "6.10",
              "status": "affected",
              "version": "6.9.9",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/crypto/hisilicon/debugfs.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.10"
            },
            {
              "lessThan": "6.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.156",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.112",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.53",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.17.*",
              "status": "unaffected",
              "version": "6.17.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: hisilicon/qm - set NULL to qm-\u003edebug.qm_diff_regs\n\nWhen the initialization of qm-\u003edebug.acc_diff_reg fails,\nthe probe process does not exit. However, after qm-\u003edebug.qm_diff_regs is\nfreed, it is not set to NULL. This can lead to a double free when the\nremove process attempts to free it again. Therefore, qm-\u003edebug.qm_diff_regs\nshould be set to NULL after it is freed."
    }
  ],
  "id": "CVE-2025-40062",
  "lastModified": "2026-06-17T09:21:12.100",
  "metrics": {},
  "published": "2025-10-28T12:15:40.610",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/1750f1ec143ebabdbdfa013668665c9d5042c430"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/7226a0650ad5705bd8d39a11be270fa21ed1e6a5"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a7836260d5121949ba734e840d42a86ab4a32fcc"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/a87a21a56244b8f4eb357f6bad879247005bbe38"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f0cafb02de883b3b413d34eb079c9680782a9cc1"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Deferred"
}


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