{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-31480",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-31480"
  ],
  "published": "2026-04-22T13:57:42Z",
  "summary": "tracing: Fix potential deadlock in cpu hotplug with osnoise",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Fix potential deadlock in cpu hotplug with osnoise\n\nThe following sequence may leads deadlock in cpu hotplug:\n\n    task1        task2        task3\n    -----        -----        -----\n\n mutex_lock(&interface_lock)\n\n            [CPU GOING OFFLINE]\n\n            cpus_write_lock();\n            osnoise_cpu_die();\n              kthread_stop(task3);\n                wait_for_completion();\n\n                      osnoise_sleep();\n                        mutex_lock(&interface_lock);\n\n cpus_read_lock();\n\n [DEAD LOCK]\n\nFix by swap the order of cpus_read_lock() and mutex_lock(&interface_lock).",
  "affected": [
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        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
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        "1:6.12.62-1+rpt1~bookworm",
        "1:6.12.75-1+rpt1~bookworm"
      ],
      "ecosystem_specific": {
        "binaries": [
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            "binary_version": "1:6.1.47-1+rpt4"
          },
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            "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"
          },
          {
            "binary_name": "linux-image-6.12.34+rpt-rpi-v8-rt",
            "binary_version": "1:6.12.34-1+rpt1~bookworm"
          },
          {
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          },
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            "binary_name": "linux-image-6.12.62+rpt-rpi-v8-rt",
            "binary_version": "1:6.12.62-1+rpt1~bookworm"
          },
          {
            "binary_name": "linux-image-6.12.75+rpt-rpi-v8-rt",
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          }
        ]
      },
      "database_specific": {
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            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.1.168",
            "compiled_filter": false
          },
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            "upstream_version": "6.12.34",
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            "upstream_fixed": "6.12.80"
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            "upstream_version": "6.12.62",
            "assessment": "commit ancestry (strak rule)",
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            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.12.80"
          }
        }
      }
    },
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:13",
        "name": "linux"
      },
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        "1:6.12.25-1+rpt1+trixie",
        "1:6.12.34-1+rpt1",
        "1:6.12.47-1+rpt1",
        "1:6.12.62-1+rpt1",
        "1:6.12.75-1+rpt1"
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          }
        ]
      },
      "database_specific": {
        "per_version": {
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            "assessment": "commit ancestry (strak rule)",
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          },
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  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-31480"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/cf929c21eeed5bd39873fb14bfdfff963fa6f1da"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/7aa095ce7d224308cb6979956f0de8607df93d4f"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/ef41a85a55022e27cdaebf22a6676910b66f65aa"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/03474a01c199de17a8e2d39b51df6beb9c76e831"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/f278b8ebf7eba2a1699cfc7bf30dd3ef898d60d7"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/7a41d4633cd2c15eb5ed31e8f3b16910e50a8c9f"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/1f9885732248d22f788e4992c739a98c88ab8a55"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}