{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "da001fb651b00e1deeaf24767dd691ae8152a4f5"
            },
            {
              "fixed": "a430b5b6d2ddd2b266330f8507a655be1148347d"
            },
            {
              "fixed": "4e76d85e505b7451925efbcd67c015e8c2440c68"
            },
            {
              "fixed": "bcac9052e19490231ff6e0678a06bd2fcf8db3af"
            },
            {
              "fixed": "28cc179252347718f97045dd5ea74165609dbd7d"
            },
            {
              "fixed": "0d6db386133d9230befb77967bbf130443964860"
            },
            {
              "fixed": "f4d347fb1309b69ea6f817a17e6b2893c8d754b7"
            },
            {
              "fixed": "94abda77b57a35b82bba0365bad072d94d67ffe9"
            },
            {
              "fixed": "72bbf11ba14bd7d5fbf31a1ec42fff608b657f74"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.3.0"
            },
            {
              "fixed": "5.10.270"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.221"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.188"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.157"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.110"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.52"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93159.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: atmel-sha204a - fix heap info leak on I2C transfer failure\n\nThe nonblocking RNG path allocates a work_data structure to track the\nstate of an in-flight asynchronous I2C request. This pointer is stored\nin rng-\u003epriv and later consumed by the read path once the transaction\ncompletes.\n\nIf the underlying I2C transfer fails, the completion callback is invoked\nwith a non-zero status. In this case, the allocated work_data is not\nusable for producing RNG output and must not remain associated with the\nhwrng state.\n\nPreviously, the failure path only logged a warning but left the pointer\nstate uncleared, which can result in subsequent read attempts observing\nstale state and interpreting it as valid completion data.\n\nFix this by freeing the pending work_data. The I2C transaction reports\nan error. This ensures that failed requests do not leave residual state\nbehind that could be interpreted as valid RNG data on later reads.\nClearing rng-\u003epriv is done at the subsequent call to nonblocking read.",
  "id": "CVE-2026-93159",
  "modified": "2026-09-19T03:30:50.467633042Z",
  "published": "2026-09-17T16:11:53.852Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0d6db386133d9230befb77967bbf130443964860"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/28cc179252347718f97045dd5ea74165609dbd7d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4e76d85e505b7451925efbcd67c015e8c2440c68"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/72bbf11ba14bd7d5fbf31a1ec42fff608b657f74"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/94abda77b57a35b82bba0365bad072d94d67ffe9"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a430b5b6d2ddd2b266330f8507a655be1148347d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bcac9052e19490231ff6e0678a06bd2fcf8db3af"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f4d347fb1309b69ea6f817a17e6b2893c8d754b7"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93159.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93159"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "crypto: atmel-sha204a - fix heap info leak on I2C transfer failure"
}