{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2025-23147",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2025-23147"
  ],
  "published": "2025-05-01T13:03:03Z",
  "summary": "i3c: Add NULL pointer check in i3c_master_queue_ibi()",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ni3c: Add NULL pointer check in i3c_master_queue_ibi()\n\nThe I3C master driver may receive an IBI from a target device that has not\nbeen probed yet. In such cases, the master calls `i3c_master_queue_ibi()`\nto queue an IBI work task, leading to \"Unable to handle kernel read from\nunreadable memory\" and resulting in a kernel panic.\n\nTypical IBI handling flow:\n1. The I3C master scans target devices and probes their respective drivers.\n2. The target device driver calls `i3c_device_request_ibi()` to enable IBI\n   and assigns `dev->ibi = ibi`.\n3. The I3C master receives an IBI from the target device and calls\n   `i3c_master_queue_ibi()` to queue the target device driver\u2019s IBI\n   handler task.\n\nHowever, since target device events are asynchronous to the I3C probe\nsequence, step 3 may occur before step 2, causing `dev->ibi` to be `NULL`,\nleading to a kernel panic.\n\nAdd a NULL pointer check in `i3c_master_queue_ibi()` to prevent accessing\nan uninitialized `dev->ibi`, ensuring stability.",
  "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": "6.1.135",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-23147"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/1b54faa5f47fa7c642179744aeff03f0810dc62e"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/09359e7c8751961937cb5fc50220969b0a4e1058"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/3ba402610843d7d15c7f3966a461deeeaff7fba4"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/d83b0c03ef8fbea2f03029a1cc1f5041f0e1d47f"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/6871a676aa534e8f218279672e0445c725f81026"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/e6bba328578feb58c614c11868c259b40484c5fa"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/fe4a4fc179b7898055555a11685915473588392e"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/ff9d61db59bb27d16d3f872bff2620d50856b80c"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/bd496a44f041da9ef3afe14d1d6193d460424e91"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}