{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2025-38488",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-38488",
    "idYear": 2025,
    "status": "PUBLISHED",
    "publishedAt": "2025-07-28T11:21:52.085Z",
    "updatedAt": "2026-08-05T12:02:19.784Z",
    "importedAt": "2026-10-24T01:57:34.152Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "smb: client: fix use-after-free in crypt_message when using async crypto",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix use-after-free in crypt_message when using async crypto\n\nThe CVE-2024-50047 fix removed asynchronous crypto handling from\ncrypt_message(), assuming all crypto operations are synchronous.\nHowever, when hardware crypto accelerators are used, this can cause\nuse-after-free crashes:\n\n  crypt_message()\n    // Allocate the creq buffer containing the req\n    creq = smb2_get_aead_req(..., &req);\n\n    // Async encryption returns -EINPROGRESS immediately\n    rc = enc ? crypto_aead_encrypt(req) : crypto_aead_decrypt(req);\n\n    // Free creq while async operation is still in progress\n    kvfree_sensitive(creq, ...);\n\nHardware crypto modules often implement async AEAD operations for\nperformance. When crypto_aead_encrypt/decrypt() returns -EINPROGRESS,\nthe operation completes asynchronously. Without crypto_wait_req(),\nthe function immediately frees the request buffer, leading to crashes\nwhen the driver later accesses the freed memory.\n\nThis results in a use-after-free condition when the hardware crypto\ndriver later accesses the freed request structure, leading to kernel\ncrashes with NULL pointer dereferences.\n\nThe issue occurs because crypto_alloc_aead() with mask=0 doesn't\nguarantee synchronous operation. Even without CRYPTO_ALG_ASYNC in\nthe mask, async implementations can be selected.\n\nFix by restoring the async crypto handling:\n- DECLARE_CRYPTO_WAIT(wait) for completion tracking\n- aead_request_set_callback() for async completion notification\n- crypto_wait_req() to wait for operation completion\n\nThis ensures the request buffer isn't freed until the crypto operation\ncompletes, whether synchronous or asynchronous, while preserving the\nCVE-2024-50047 fix.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "8f14a476abba13144df5434871a7225fd29af633",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5d047b12f86cc3b9fde1171c02d9bccf4dba0632"
            },
            {
              "version": "ef51c0d544b1518b35364480317ab6d3468f205d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6550b2bef095d0dd2d2c8390d2ea4c3837028833"
            },
            {
              "version": "bce966530fd5542bbb422cb45ecb775f7a1a6bc3",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9a1d3e8d40f151c2d5a5f40c410e6e433f62f438"
            },
            {
              "version": "0809fb86ad13b29e1d6d491364fc7ea4fb545995",
              "status": "affected",
              "versionType": "git",
              "lessThan": "15a0a5de49507062bc3be4014a403d8cea5533de"
            },
            {
              "version": "b0abcd65ec545701b8793e12bc27dc98042b151a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2a76bc2b24ed889a689fb1c9015307bf16aafb5b"
            },
            {
              "version": "b0abcd65ec545701b8793e12bc27dc98042b151a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8ac90f6824fc44d2e55a82503ddfc95defb19ae0"
            },
            {
              "version": "b0abcd65ec545701b8793e12bc27dc98042b151a",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b220bed63330c0e1733dc06ea8e75d5b9962b6b6"
            },
            {
              "version": "538c26d9bf70c90edc460d18c81008a4e555925a",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "5.10.237",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.10.241"
            },
            {
              "version": "5.15.181",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.15.190"
            },
            {
              "version": "6.1.128",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.1.147"
            },
            {
              "version": "6.6.57",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.6.100"
            },
            {
              "version": "6.11.4",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.12"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.12",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.12"
            },
            {
              "version": "5.10.241",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.190",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.147",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.100",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.40",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.15.8",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.15.*"
            },
            {
              "version": "6.16",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}