{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "699e3efd6c645c741ea4d6d58282c56b6d108cf7"
            },
            {
              "fixed": "dd3ac52ea7a001406c7dbc663aae4b9f89da679a"
            },
            {
              "fixed": "53e6d2d834df40960b655b353e7a8ff4d927e1c7"
            },
            {
              "fixed": "84ced03172da544c9f8c0862faad48104f519352"
            },
            {
              "fixed": "c424d2664f08c77f08b4580b5f0cbaabf7c229b2"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.10.0"
            },
            {
              "fixed": "6.12.86"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.27"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46283.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ntpm: Use kfree_sensitive() to free auth session in tpm_dev_release()\n\ntpm_dev_release() uses plain kfree() to free chip-\u003eauth, which contains\nsensitive cryptographic material including HMAC session keys, nonces,\nand passphrase data (struct tpm2_auth).\n\nEvery other code path that frees this structure uses kfree_sensitive()\nto zero the memory before releasing it: both tpm2_end_auth_session()\nand tpm_buf_check_hmac_response() do so. The tpm_dev_release() path\nis the only one that does not, leaving key material in freed slab\nmemory until it is eventually overwritten.\n\nUse kfree_sensitive() for consistency with the rest of the driver and\nto ensure session keys are scrubbed during device teardown.",
  "id": "CVE-2026-46283",
  "modified": "2026-07-15T01:49:18.645369368Z",
  "published": "2026-06-08T15:41:26.425Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/53e6d2d834df40960b655b353e7a8ff4d927e1c7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/84ced03172da544c9f8c0862faad48104f519352"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c424d2664f08c77f08b4580b5f0cbaabf7c229b2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dd3ac52ea7a001406c7dbc663aae4b9f89da679a"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46283.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-46283"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "summary": "tpm: Use kfree_sensitive() to free auth session in tpm_dev_release()"
}