CVE-2026-80834 (GCVE-0-2026-80834)
Vulnerability from cvelistv5
Published
2026-09-04 15:54
Modified
2026-10-19 08:44
Severity ?
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: 5eb7e946888493959b1c393144934afcbcd0cfc1
Version: 5eb7e946888493959b1c393144934afcbcd0cfc1
Version: 5eb7e946888493959b1c393144934afcbcd0cfc1
Version: 5eb7e946888493959b1c393144934afcbcd0cfc1
Version: 5eb7e946888493959b1c393144934afcbcd0cfc1
Version: 5eb7e946888493959b1c393144934afcbcd0cfc1
Version: 5eb7e946888493959b1c393144934afcbcd0cfc1
Version: 5eb7e946888493959b1c393144934afcbcd0cfc1
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "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": "19588f78db582ba4c47b4001bb27f39bb19dc432",
              "status": "affected",
              "version": "5eb7e946888493959b1c393144934afcbcd0cfc1",
              "versionType": "git"
            },
            {
              "lessThan": "ce641e75e0fc912acd4bf661367617561bc7c63f",
              "status": "affected",
              "version": "5eb7e946888493959b1c393144934afcbcd0cfc1",
              "versionType": "git"
            },
            {
              "lessThan": "b69af40720cabd13da763575022a3d4430b02dfc",
              "status": "affected",
              "version": "5eb7e946888493959b1c393144934afcbcd0cfc1",
              "versionType": "git"
            },
            {
              "lessThan": "2c8fa2299789282db1aac566a60c2012a5ba8ea8",
              "status": "affected",
              "version": "5eb7e946888493959b1c393144934afcbcd0cfc1",
              "versionType": "git"
            },
            {
              "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": "5.10.*",
              "status": "unaffected",
              "version": "5.10.271",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.222",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.189",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.158",
              "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",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.271",
                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.222",
                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.189",
                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.158",
                  "versionStartIncluding": "5.10",
                  "vulnerable": true
                },
                {
                  "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",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.3",
                  "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": "2026-10-19T08:44:26.581Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/19588f78db582ba4c47b4001bb27f39bb19dc432"
        },
        {
          "url": "https://git.kernel.org/stable/c/ce641e75e0fc912acd4bf661367617561bc7c63f"
        },
        {
          "url": "https://git.kernel.org/stable/c/b69af40720cabd13da763575022a3d4430b02dfc"
        },
        {
          "url": "https://git.kernel.org/stable/c/2c8fa2299789282db1aac566a60c2012a5ba8ea8"
        },
        {
          "url": "https://git.kernel.org/stable/c/7bb9e6060710eb7b59491d9826169190297adace"
        },
        {
          "url": "https://git.kernel.org/stable/c/8e4f9110aba3127024646ef7a8999dcfcc03f516"
        },
        {
          "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"
      }
    }
  },
  "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": "2026-10-19T08:44:26.581Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.