Vulnerability-Lookup

GHSA-4MJX-2PG4-X29V

Vulnerability from github – Published: 2026-09-04 18:31 – Updated: 2026-09-07 18:31

Details

In the Linux kernel, the following vulnerability has been resolved:

crypto: sun8i-ce - Remove crypto_rng interface

Since the crypto_rng interface for hardware PRNGs is unused and is redundant with hwrng and the actual Linux RNG, it's being phased out. Most drivers for it were already removed. Go ahead and remove the sun8i-ce support which is one of the only remaining ones.

Note that the sun8i-ce support for hwrng remains in place. That is the interface that actually matters.

As usual for crypto_rng, this driver was also buggy: its ->generate() function had a use-after-free vulnerability due to using wait_for_completion_interruptible_timeout() without handling shutting down the DMA operation if a signal is sent. There's no point in fixing this separately only to remove the code anyway, so this commit is marked with Fixes and Cc stable.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-80834"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-04T16:18:11Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: sun8i-ce - Remove crypto_rng interface\n\nSince the crypto_rng interface for hardware PRNGs is unused and is\nredundant with hwrng and the actual Linux RNG, it\u0027s being phased out.\nMost drivers for it were already removed.  Go ahead and remove the\nsun8i-ce support which is one of the only remaining ones.\n\nNote that the sun8i-ce support for hwrng remains in place.  That is the\ninterface that actually matters.\n\nAs usual for crypto_rng, this driver was also buggy: its -\u003egenerate()\nfunction had a use-after-free vulnerability due to using\nwait_for_completion_interruptible_timeout() without handling shutting\ndown the DMA operation if a signal is sent.  There\u0027s no point in fixing\nthis separately only to remove the code anyway, so this commit is marked\nwith Fixes and Cc stable.",
  "id": "GHSA-4mjx-2pg4-x29v",
  "modified": "2026-09-07T18:31:31Z",
  "published": "2026-09-04T18:31:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-80834"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/011556f71d094da61379ae3672692cae2795304e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1017f987c5f0841f00408a78f947990c9d84b346"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7bb9e6060710eb7b59491d9826169190297adace"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8e4f9110aba3127024646ef7a8999dcfcc03f516"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-80834 (GCVE-0-2026-80834)

Vulnerability from cvelistv5 – Published: 2026-09-04 15:54 – Updated: 2026-09-07 15:45

Title

crypto: sun8i-ce - Remove crypto_rng interface

Summary

In the Linux kernel, the following vulnerability has been resolved: crypto: sun8i-ce - Remove crypto_rng interface Since the crypto_rng interface for hardware PRNGs is unused and is redundant with hwrng and the actual Linux RNG, it's being phased out. Most drivers for it were already removed. Go ahead and remove the sun8i-ce support which is one of the only remaining ones. Note that the sun8i-ce support for hwrng remains in place. That is the interface that actually matters. As usual for crypto_rng, this driver was also buggy: its ->generate() function had a use-after-free vulnerability due to using wait_for_completion_interruptible_timeout() without handling shutting down the DMA operation if a signal is sent. There's no point in fixing this separately only to remove the code anyway, so this commit is marked with Fixes and Cc stable.

Severity

No CVSS data available.

Assigner

Linux mitre root

References

4 references

URL	Tags
https://git.kernel.org/stable/c/7bb9e6060710eb7b5…
https://git.kernel.org/stable/c/8e4f9110aba312702…
https://git.kernel.org/stable/c/1017f987c5f0841f0…
https://git.kernel.org/stable/c/011556f71d094da61…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 5eb7e946888493959b1c393144934afcbcd0cfc1 , < 7bb9e6060710eb7b59491d9826169190297adace (git) Affected: 5eb7e946888493959b1c393144934afcbcd0cfc1 , < 8e4f9110aba3127024646ef7a8999dcfcc03f516 (git) Affected: 5eb7e946888493959b1c393144934afcbcd0cfc1 , < 1017f987c5f0841f00408a78f947990c9d84b346 (git) Affected: 5eb7e946888493959b1c393144934afcbcd0cfc1 , < 011556f71d094da61379ae3672692cae2795304e (git)
Linux	Linux	Affected: 5.10 Unaffected: 0 , < 5.10 (semver) Unaffected: 6.12.109 , ≤ 6.12.* (semver) Unaffected: 6.18.50 , ≤ 6.18.* (semver) Unaffected: 7.2.3 , ≤ 7.2.* (semver) Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/crypto/allwinner/Kconfig",
            "drivers/crypto/allwinner/sun8i-ce/Makefile",
            "drivers/crypto/allwinner/sun8i-ce/sun8i-ce-core.c",
            "drivers/crypto/allwinner/sun8i-ce/sun8i-ce-prng.c",
            "drivers/crypto/allwinner/sun8i-ce/sun8i-ce.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "7bb9e6060710eb7b59491d9826169190297adace",
              "status": "affected",
              "version": "5eb7e946888493959b1c393144934afcbcd0cfc1",
              "versionType": "git"
            },
            {
              "lessThan": "8e4f9110aba3127024646ef7a8999dcfcc03f516",
              "status": "affected",
              "version": "5eb7e946888493959b1c393144934afcbcd0cfc1",
              "versionType": "git"
            },
            {
              "lessThan": "1017f987c5f0841f00408a78f947990c9d84b346",
              "status": "affected",
              "version": "5eb7e946888493959b1c393144934afcbcd0cfc1",
              "versionType": "git"
            },
            {
              "lessThan": "011556f71d094da61379ae3672692cae2795304e",
              "status": "affected",
              "version": "5eb7e946888493959b1c393144934afcbcd0cfc1",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/crypto/allwinner/Kconfig",
            "drivers/crypto/allwinner/sun8i-ce/Makefile",
            "drivers/crypto/allwinner/sun8i-ce/sun8i-ce-core.c",
            "drivers/crypto/allwinner/sun8i-ce/sun8i-ce-prng.c",
            "drivers/crypto/allwinner/sun8i-ce/sun8i-ce.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.10"
            },
            {
              "lessThan": "5.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.109",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.50",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.2.*",
              "status": "unaffected",
              "version": "7.2.3",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.109",
                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.50",
                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2.3",
                  "versionStartIncluding": "5.10",
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                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3-rc1",
                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: sun8i-ce - Remove crypto_rng interface\n\nSince the crypto_rng interface for hardware PRNGs is unused and is\nredundant with hwrng and the actual Linux RNG, it\u0027s being phased out.\nMost drivers for it were already removed.  Go ahead and remove the\nsun8i-ce support which is one of the only remaining ones.\n\nNote that the sun8i-ce support for hwrng remains in place.  That is the\ninterface that actually matters.\n\nAs usual for crypto_rng, this driver was also buggy: its -\u003egenerate()\nfunction had a use-after-free vulnerability due to using\nwait_for_completion_interruptible_timeout() without handling shutting\ndown the DMA operation if a signal is sent.  There\u0027s no point in fixing\nthis separately only to remove the code anyway, so this commit is marked\nwith Fixes and Cc stable."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-07T15:45:12.621Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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        },
        {
          "url": "https://git.kernel.org/stable/c/1017f987c5f0841f00408a78f947990c9d84b346"
        },
        {
          "url": "https://git.kernel.org/stable/c/011556f71d094da61379ae3672692cae2795304e"
        }
      ],
      "title": "crypto: sun8i-ce - Remove crypto_rng interface",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-80834",
    "datePublished": "2026-09-04T15:54:42.951Z",
    "dateReserved": "2026-08-26T14:34:25.796Z",
    "dateUpdated": "2026-09-07T15:45:12.621Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

GHSA-4MJX-2PG4-X29V

CVE-2026-80834 (GCVE-0-2026-80834)

Tags

Sightings

Nomenclature