{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/crypto/tegra/tegra-se-aes.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "cd6991001bf0681ed0bcf21f9cc3d261d749b2bb",
              "status": "affected",
              "version": "0880bb3b00c855fc244b7177ffdaafef4d0aa1e0",
              "versionType": "git"
            },
            {
              "lessThan": "99a18e1d979e0fad3aaf9c65ae6696897c1d9869",
              "status": "affected",
              "version": "0880bb3b00c855fc244b7177ffdaafef4d0aa1e0",
              "versionType": "git"
            },
            {
              "lessThan": "c6237834d9994de209cb90c7a2c461247bce8e90",
              "status": "affected",
              "version": "0880bb3b00c855fc244b7177ffdaafef4d0aa1e0",
              "versionType": "git"
            },
            {
              "lessThan": "360f2974fcea49c61f6d6f81554741a9eeee7168",
              "status": "affected",
              "version": "0880bb3b00c855fc244b7177ffdaafef4d0aa1e0",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/crypto/tegra/tegra-se-aes.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": "6.12.105",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.46",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.1.*",
              "status": "unaffected",
              "version": "7.1.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.105",
                  "versionStartIncluding": "6.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.46",
                  "versionStartIncluding": "6.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1.10",
                  "versionStartIncluding": "6.10",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.2",
                  "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 - fix rctx-\u003ecryptlen calculation in tegra_gcm_do_one_req()\n\nPerform rctx-\u003ecryptlen calculation in tegra_gcm_do_one_req() the same way\nit is done in tegra_ccm_crypt_init(). The current formulae may lead to a\ncrash if a caller does not call tegra_gcm_setauthsize() and so ctx-\u003eauthsize\nremains zero. Then a decrypt operation with incorrect rctx-\u003ecryptlen will\nlead to a write beyound rctx-\u003edst_sg buffer.\n\nAs a follow-up cleanup delete struct tegra_aead_ctx-\u003eauthsize field since\nit appears to be completely unused. Also simplify tegra_ccm_setauthsize()\nand tegra_gcm_setauthsize() functions respectively."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The flaw is in the Tegra Security Engine gcm(aes) driver reached via the kernel crypto API (AF_ALG socket syscalls); major network consumers call setauthsize and are not affected, and the driver only exists on Tegra234 platforms with TEGRA_HOST1X.\nAC:L - On affected Tegra systems with tegra-se loaded, an attacker reliably triggers the bug by issuing a GCM decrypt through AF_ALG without calling ALG_SET_AEAD_AUTHSIZE, relying on the default 16-byte tag while ctx-\u003eauthsize remains zero.\nPR:L - Triggering tegra GCM decrypt via AF_ALG requires only an unprivileged local user able to open AF_ALG sockets and bind to gcm(aes); no CAP_SYS_ADMIN, real root, or container-escaping capabilities are needed on standard configurations.\nUI:N - Exploitation requires no victim interaction such as mounting filesystems or opening files; the attacker directly submits crafted decrypt requests through the local crypto interface.\nS:U - Impact is kernel heap/memory corruption and potential privilege escalation within the same kernel security domain; it does not cross VM, container, or IOMMU boundaries.\nC:H - The out-of-bounds write corrupts memory adjacent to the destination scatterlist buffer; such heap corruption can expose kernel pointers or other sensitive data and is rated High per memory-corruption guidance.\nI:H - Decrypt uses an inflated cryptlen so scatterwalk_map_and_copy writes up to 16 bytes beyond the caller-allocated dst_sg buffer with no bounds checking, constituting an exploitable out-of-bounds write primitive.\nA:H - Writing past the destination scatterlist can corrupt adjacent kernel structures and cause kernel oops or panic; the fix commit explicitly describes this as a crash-causing out-of-bounds write condition."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-27T05:01:18.823Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/cd6991001bf0681ed0bcf21f9cc3d261d749b2bb"
        },
        {
          "url": "https://git.kernel.org/stable/c/99a18e1d979e0fad3aaf9c65ae6696897c1d9869"
        },
        {
          "url": "https://git.kernel.org/stable/c/c6237834d9994de209cb90c7a2c461247bce8e90"
        },
        {
          "url": "https://git.kernel.org/stable/c/360f2974fcea49c61f6d6f81554741a9eeee7168"
        }
      ],
      "title": "crypto: tegra - fix rctx-\u003ecryptlen calculation in tegra_gcm_do_one_req()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-80522",
    "datePublished": "2026-08-26T14:37:03.180Z",
    "dateReserved": "2026-08-26T14:34:25.763Z",
    "dateUpdated": "2026-08-27T05:01:18.823Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}