Vulnerability-Lookup

GHSA-F395-X2GF-VH84

Vulnerability from github – Published: 2026-05-01 15:30 – Updated: 2026-05-03 09:33

Details

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

crypto: tegra - Add missing CRYPTO_ALG_ASYNC

The tegra crypto driver failed to set the CRYPTO_ALG_ASYNC on its asynchronous algorithms, causing the crypto API to select them for users that request only synchronous algorithms. This causes crashes (at least). Fix this by adding the flag like what the other drivers do. Also remove the unnecessary CRYPTO_ALG_TYPE_* flags, since those just get ignored and overridden by the registration function anyway.

Severity

8.8 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2026-31739"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-617"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-01T15:16:36Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: tegra - Add missing CRYPTO_ALG_ASYNC\n\nThe tegra crypto driver failed to set the CRYPTO_ALG_ASYNC on its\nasynchronous algorithms, causing the crypto API to select them for users\nthat request only synchronous algorithms.  This causes crashes (at\nleast).  Fix this by adding the flag like what the other drivers do.\nAlso remove the unnecessary CRYPTO_ALG_TYPE_* flags, since those just\nget ignored and overridden by the registration function anyway.",
  "id": "GHSA-f395-x2gf-vh84",
  "modified": "2026-05-03T09:33:10Z",
  "published": "2026-05-01T15:30:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31739"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3aea268b6d5cde3b087df9eeecc3bc620aa09513"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/429d05565eb19ee545d8a8395991372adbe4daf3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4b56770d345524fc2acc143a2b85539cf7d74bc1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bdbf027a4504b4a86740de6beb6d18a957331839"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-31739 (GCVE-0-2026-31739)

Vulnerability from cvelistv5 – Published: 2026-05-01 14:14 – Updated: 2026-08-05 12:24

Title

crypto: tegra - Add missing CRYPTO_ALG_ASYNC

Summary

In the Linux kernel, the following vulnerability has been resolved: crypto: tegra - Add missing CRYPTO_ALG_ASYNC The tegra crypto driver failed to set the CRYPTO_ALG_ASYNC on its asynchronous algorithms, causing the crypto API to select them for users that request only synchronous algorithms. This causes crashes (at least). Fix this by adding the flag like what the other drivers do. Also remove the unnecessary CRYPTO_ALG_TYPE_* flags, since those just get ignored and overridden by the registration function anyway.

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Assigner

Linux mitre root

References

4 references

URL	Tags
https://git.kernel.org/stable/c/bdbf027a4504b4a86…
https://git.kernel.org/stable/c/3aea268b6d5cde3b0…
https://git.kernel.org/stable/c/429d05565eb19ee54…
https://git.kernel.org/stable/c/4b56770d345524fc2…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 0880bb3b00c855fc244b7177ffdaafef4d0aa1e0 , < bdbf027a4504b4a86740de6beb6d18a957331839 (git) Affected: 0880bb3b00c855fc244b7177ffdaafef4d0aa1e0 , < 3aea268b6d5cde3b087df9eeecc3bc620aa09513 (git) Affected: 0880bb3b00c855fc244b7177ffdaafef4d0aa1e0 , < 429d05565eb19ee545d8a8395991372adbe4daf3 (git) Affected: 0880bb3b00c855fc244b7177ffdaafef4d0aa1e0 , < 4b56770d345524fc2acc143a2b85539cf7d74bc1 (git)
Linux	Linux	Affected: 6.10 Unaffected: 0 , < 6.10 (semver) Unaffected: 6.12.81 , ≤ 6.12.* (semver) Unaffected: 6.18.22 , ≤ 6.18.* (semver) Unaffected: 6.19.12 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/crypto/tegra/tegra-se-aes.c",
            "drivers/crypto/tegra/tegra-se-hash.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "bdbf027a4504b4a86740de6beb6d18a957331839",
              "status": "affected",
              "version": "0880bb3b00c855fc244b7177ffdaafef4d0aa1e0",
              "versionType": "git"
            },
            {
              "lessThan": "3aea268b6d5cde3b087df9eeecc3bc620aa09513",
              "status": "affected",
              "version": "0880bb3b00c855fc244b7177ffdaafef4d0aa1e0",
              "versionType": "git"
            },
            {
              "lessThan": "429d05565eb19ee545d8a8395991372adbe4daf3",
              "status": "affected",
              "version": "0880bb3b00c855fc244b7177ffdaafef4d0aa1e0",
              "versionType": "git"
            },
            {
              "lessThan": "4b56770d345524fc2acc143a2b85539cf7d74bc1",
              "status": "affected",
              "version": "0880bb3b00c855fc244b7177ffdaafef4d0aa1e0",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/crypto/tegra/tegra-se-aes.c",
            "drivers/crypto/tegra/tegra-se-hash.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.10"
            },
            {
              "lessThan": "6.10",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.81",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.22",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.12",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.81",
                  "versionStartIncluding": "6.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.22",
                  "versionStartIncluding": "6.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.12",
                  "versionStartIncluding": "6.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0",
                  "versionStartIncluding": "6.10",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: tegra - Add missing CRYPTO_ALG_ASYNC\n\nThe tegra crypto driver failed to set the CRYPTO_ALG_ASYNC on its\nasynchronous algorithms, causing the crypto API to select them for users\nthat request only synchronous algorithms.  This causes crashes (at\nleast).  Fix this by adding the flag like what the other drivers do.\nAlso remove the unnecessary CRYPTO_ALG_TYPE_* flags, since those just\nget ignored and overridden by the registration function anyway."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:N - The vulnerable Tegra async hash/HMAC algorithms can be reached through network-facing SUNRPC/RPCSEC_GSS/NFS paths that request synchronous HMAC algorithms and then process attacker-supplied RPC messages.\nAC:L - Once the affected Tegra crypto driver is registered and a vulnerable network service uses RPCSEC_GSS, the attacker can trigger the bad async completion path with ordinary protocol messages; no race or hard-to-control condition is required.\nPR:L - The strongest network path requires a valid RPCSEC_GSS/Kerberos context or equivalent low-privileged authenticated access, but not administrative privileges on the target.\nUI:N - For a network service such as NFS/RPCSEC_GSS, exploitation is triggered by remote protocol traffic and does not require a local user action on the target.\nS:U - The impact remains within the kernel/security authority of the affected host and does not cross a hypervisor, IOMMU, or separate security scope boundary.\nC:H - The bug can cause asynchronous completion to use request memory after a synchronous caller has freed or unwound it, creating a use-after-free condition that can plausibly expose arbitrary kernel memory.\nI:H - The same use-after-free memory corruption can plausibly be shaped into arbitrary kernel memory corruption or control-flow impact, so high integrity impact is warranted.\nA:H - The commit explicitly notes crashes, and the async completion of freed or invalid request state can reliably oops or panic the kernel."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T12:24:55.007Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/bdbf027a4504b4a86740de6beb6d18a957331839"
        },
        {
          "url": "https://git.kernel.org/stable/c/3aea268b6d5cde3b087df9eeecc3bc620aa09513"
        },
        {
          "url": "https://git.kernel.org/stable/c/429d05565eb19ee545d8a8395991372adbe4daf3"
        },
        {
          "url": "https://git.kernel.org/stable/c/4b56770d345524fc2acc143a2b85539cf7d74bc1"
        }
      ],
      "title": "crypto: tegra - Add missing CRYPTO_ALG_ASYNC",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-31739",
    "datePublished": "2026-05-01T14:14:35.551Z",
    "dateReserved": "2026-03-09T15:48:24.138Z",
    "dateUpdated": "2026-08-05T12:24:55.007Z",
    "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.

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.
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GHSA-F395-X2GF-VH84

CVE-2026-31739 (GCVE-0-2026-31739)

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