{
  "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-2026-31533",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-31533",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-04-23T15:11:06.955Z",
    "updatedAt": "2026-10-19T18:45:55.376Z",
    "importedAt": "2026-10-24T01:58:02.025Z",
    "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": "net/tls: fix use-after-free in -EBUSY error path of tls_do_encryption",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/tls: fix use-after-free in -EBUSY error path of tls_do_encryption\n\nThe -EBUSY handling in tls_do_encryption(), introduced by commit\n859054147318 (\"net: tls: handle backlogging of crypto requests\"), has\na use-after-free due to double cleanup of encrypt_pending and the\nscatterlist entry.\n\nWhen crypto_aead_encrypt() returns -EBUSY, the request is enqueued to\nthe cryptd backlog and the async callback tls_encrypt_done() will be\ninvoked upon completion. That callback unconditionally restores the\nscatterlist entry (sge->offset, sge->length) and decrements\nctx->encrypt_pending. However, if tls_encrypt_async_wait() returns an\nerror, the synchronous error path in tls_do_encryption() performs the\nsame cleanup again, double-decrementing encrypt_pending and\ndouble-restoring the scatterlist.\n\nThe double-decrement corrupts the encrypt_pending sentinel (initialized\nto 1), making tls_encrypt_async_wait() permanently skip the wait for\npending async callbacks. A subsequent sendmsg can then free the\ntls_rec via bpf_exec_tx_verdict() while a cryptd callback is still\npending, resulting in a use-after-free when the callback fires on the\nfreed record.\n\nFix this by skipping the synchronous cleanup when the -EBUSY async\nwait returns an error, since the callback has already handled\nencrypt_pending and sge restoration.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "3ade391adc584f17b5570fd205de3ad029090368",
              "status": "affected",
              "versionType": "git",
              "lessThan": "414fc5e5a5aff776c150f1b86770e0a25a35df3a"
            },
            {
              "version": "cd1bbca03f3c1d845ce274c0d0a66de8e5929f72",
              "status": "affected",
              "versionType": "git",
              "lessThan": "02f3ecadb23558bbe068e6504118f1b712d4ece0"
            },
            {
              "version": "13eca403876bbea3716e82cdfe6f1e6febb38754",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0e43e0a3c94044acc74b8e0927c27972eb5a59e8"
            },
            {
              "version": "8590541473188741055d27b955db0777569438e3",
              "status": "affected",
              "versionType": "git",
              "lessThan": "aa9facde6c5005205874c37db3fd25799d741baf"
            },
            {
              "version": "8590541473188741055d27b955db0777569438e3",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5d70eb25b41e9b010828cd12818b06a0c3b04412"
            },
            {
              "version": "8590541473188741055d27b955db0777569438e3",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2694d408b0e595024e0fc1d64ff9db0358580f74"
            },
            {
              "version": "8590541473188741055d27b955db0777569438e3",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a9b8b18364fffce4c451e6f6fd218fa4ab646705"
            },
            {
              "version": "ab6397f072e5097f267abf5cb08a8004e6b17694",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "5.15.160",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.15.203"
            },
            {
              "version": "6.1.84",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.1.169"
            },
            {
              "version": "6.6.18",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.6.135"
            },
            {
              "version": "6.7.6",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "6.8"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "6.8",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "6.8"
            },
            {
              "version": "5.15.203",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.169",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.135",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.82",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.23",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "6.19.13",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.19.*"
            },
            {
              "version": "7.0",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}