CVE-2026-80871 (GCVE-0-2026-80871)

Vulnerability from cvelistv5 – Published: 2026-09-04 16:48 – Updated: 2026-09-04 16:48
VLAI
Title
crypto: xilinx-trng - Remove crypto_rng interface
Summary
In the Linux kernel, the following vulnerability has been resolved: crypto: xilinx-trng - Remove crypto_rng interface Implementing the crypto_rng interface has no purpose, as it isn't used in practice. It's being removed from other drivers too. Just remove it. This leaves hwrng, which is actually used. Tagging with 'Cc stable' due to the bugs that this removes: - xtrng_trng_generate() sometimes returned success even when it didn't fill in all the bytes. - It was possible for xtrng_trng_generate() and xtrng_hwrng_trng_read() to run concurrently and interfere with each other, as the locking code in xtrng_hwrng_trng_read() was broken.
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: 8979744aca8096ee5072798dfc1181606919b35d , < 83f29da85dc9d9a32fe62cd1055e8e6705e6bf80 (git)
Affected: 8979744aca8096ee5072798dfc1181606919b35d , < 9634db561e1594c151923f4950c012161c545c93 (git)
Affected: 8979744aca8096ee5072798dfc1181606919b35d , < 32b4d29280ed2a991dc196d5845b892acedc63b8 (git)
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Linux Linux Affected: 6.18
Unaffected: 0 , < 6.18 (semver)
Unaffected: 6.18.40 , ≤ 6.18.* (semver)
Unaffected: 7.1.5 , ≤ 7.1.* (semver)
Unaffected: 7.2 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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{
  "containers": {
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        {
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          "product": "Linux",
          "programFiles": [
            "drivers/crypto/Kconfig",
            "drivers/crypto/xilinx/xilinx-trng.c"
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          "vendor": "Linux",
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              "operator": "OR"
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      ],
      "descriptions": [
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: xilinx-trng - Remove crypto_rng interface\n\nImplementing the crypto_rng interface has no purpose, as it isn\u0027t used\nin practice.  It\u0027s being removed from other drivers too.  Just remove\nit.  This leaves hwrng, which is actually used.\n\nTagging with \u0027Cc stable\u0027 due to the bugs that this removes:\n\n  - xtrng_trng_generate() sometimes returned success even when it didn\u0027t\n    fill in all the bytes.\n\n  - It was possible for xtrng_trng_generate() and\n    xtrng_hwrng_trng_read() to run concurrently and interfere with each\n    other, as the locking code in xtrng_hwrng_trng_read() was broken."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-04T16:48:34.587Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        },
        {
          "url": "https://git.kernel.org/stable/c/32b4d29280ed2a991dc196d5845b892acedc63b8"
        }
      ],
      "title": "crypto: xilinx-trng - Remove crypto_rng interface",
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  "cveMetadata": {
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    "cveId": "CVE-2026-80871",
    "datePublished": "2026-09-04T16:48:34.587Z",
    "dateReserved": "2026-08-26T14:34:25.798Z",
    "dateUpdated": "2026-09-04T16:48:34.587Z",
    "state": "PUBLISHED"
  },
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      "percentile": "0.10734"
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                ],
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          }
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        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: xilinx-trng - Remove crypto_rng interface\n\nImplementing the crypto_rng interface has no purpose, as it isn\u0027t used\nin practice.  It\u0027s being removed from other drivers too.  Just remove\nit.  This leaves hwrng, which is actually used.\n\nTagging with \u0027Cc stable\u0027 due to the bugs that this removes:\n\n  - xtrng_trng_generate() sometimes returned success even when it didn\u0027t\n    fill in all the bytes.\n\n  - It was possible for xtrng_trng_generate() and\n    xtrng_hwrng_trng_read() to run concurrently and interfere with each\n    other, as the locking code in xtrng_hwrng_trng_read() was broken."
          }
        ],
        "id": "CVE-2026-80871",
        "lastModified": "2026-09-04T17:16:59.027",
        "metrics": {},
        "published": "2026-09-04T17:16:59.027",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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        "vulnStatus": "Received"
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      "current_release_date": "2026-09-08T00:08:40Z",
      "cve": "CVE-2026-80871",
      "id": "CVE-2026-80871",
      "initial_release_date": "2026-09-07T16:19:20Z",
      "product_status:known_not_affected": "353",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-80871",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-80871.json",
      "version": "3"
    }
  }
}



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