CVE-2025-40062 (GCVE-0-2025-40062)
Vulnerability from cvelistv5
Published
2025-10-28 11:48
Modified
2025-10-28 11:48
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
Impacted products
Vendor Product Version
Linux Linux Version: eda60520cfe3aba9f088c68ebd5bcbca9fc6ac3c
Version: 7fc8d9a525b5c3f8dfa5ed50901e764d8ede7e1e
Version: 8be0913389718e8d27c4f1d4537b5e1b99ed7739
Version: 8be0913389718e8d27c4f1d4537b5e1b99ed7739
Version: 8be0913389718e8d27c4f1d4537b5e1b99ed7739
Version: e0a2d2df9ba7bd6bd7e0a9b6a5e3894f7e8445b3
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{
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          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/crypto/hisilicon/debugfs.c"
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          "vendor": "Linux",
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              "version": "0",
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              "status": "unaffected",
              "version": "6.12.53",
              "versionType": "semver"
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            {
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              "status": "unaffected",
              "version": "6.17.3",
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            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.18-rc1",
              "versionType": "original_commit_for_fix"
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      ],
      "cpeApplicability": [
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          "nodes": [
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          "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-10-28T11:48:33.961Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/a7836260d5121949ba734e840d42a86ab4a32fcc"
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        },
        {
          "url": "https://git.kernel.org/stable/c/f0cafb02de883b3b413d34eb079c9680782a9cc1"
        }
      ],
      "title": "crypto: hisilicon/qm - set NULL to qm-\u003edebug.qm_diff_regs",
      "x_generator": {
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-40062",
    "datePublished": "2025-10-28T11:48:33.961Z",
    "dateReserved": "2025-04-16T07:20:57.158Z",
    "dateUpdated": "2025-10-28T11:48:33.961Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.1",
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  }
}


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