{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-93159",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-93159"
  ],
  "published": "2026-09-17T16:10:40Z",
  "summary": "crypto: atmel-sha204a - fix heap info leak on I2C transfer failure",
  "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->priv 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->priv is done at the subsequent call to nonblocking read.",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
      "versions": [
        "1:6.1.47-1+rpt4"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-2712",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v6",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7l",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v8",
            "binary_version": "1:6.1.47-1+rpt4"
          }
        ]
      },
      "database_specific": {
        "per_version": {
          "1:6.1.47-1+rpt4": {
            "linux_commit": "655fc658a15ae7a6f37103754adb39ba52a9a14e",
            "upstream_version": "6.1.47",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.1.188",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-93159"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/a430b5b6d2ddd2b266330f8507a655be1148347d"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/4e76d85e505b7451925efbcd67c015e8c2440c68"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/bcac9052e19490231ff6e0678a06bd2fcf8db3af"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/28cc179252347718f97045dd5ea74165609dbd7d"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/0d6db386133d9230befb77967bbf130443964860"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/f4d347fb1309b69ea6f817a17e6b2893c8d754b7"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/94abda77b57a35b82bba0365bad072d94d67ffe9"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/72bbf11ba14bd7d5fbf31a1ec42fff608b657f74"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-09-17T16:10:40Z"
  }
}