{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2024-26894",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2024-26894"
  ],
  "published": "2024-04-17T10:29:01Z",
  "summary": "ACPI: processor_idle: Fix memory leak in acpi_processor_power_exit()",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nACPI: processor_idle: Fix memory leak in acpi_processor_power_exit()\n\nAfter unregistering the CPU idle device, the memory associated with\nit is not freed, leading to a memory leak:\n\nunreferenced object 0xffff896282f6c000 (size 1024):\n  comm \"swapper/0\", pid 1, jiffies 4294893170\n  hex dump (first 32 bytes):\n    00 00 00 00 0b 00 00 00 00 00 00 00 00 00 00 00  ................\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n  backtrace (crc 8836a742):\n    [<ffffffff993495ed>] kmalloc_trace+0x29d/0x340\n    [<ffffffff9972f3b3>] acpi_processor_power_init+0xf3/0x1c0\n    [<ffffffff9972d263>] __acpi_processor_start+0xd3/0xf0\n    [<ffffffff9972d2bc>] acpi_processor_start+0x2c/0x50\n    [<ffffffff99805872>] really_probe+0xe2/0x480\n    [<ffffffff99805c98>] __driver_probe_device+0x78/0x160\n    [<ffffffff99805daf>] driver_probe_device+0x1f/0x90\n    [<ffffffff9980601e>] __driver_attach+0xce/0x1c0\n    [<ffffffff99803170>] bus_for_each_dev+0x70/0xc0\n    [<ffffffff99804822>] bus_add_driver+0x112/0x210\n    [<ffffffff99807245>] driver_register+0x55/0x100\n    [<ffffffff9aee4acb>] acpi_processor_driver_init+0x3b/0xc0\n    [<ffffffff990012d1>] do_one_initcall+0x41/0x300\n    [<ffffffff9ae7c4b0>] kernel_init_freeable+0x320/0x470\n    [<ffffffff99b231f6>] kernel_init+0x16/0x1b0\n    [<ffffffff99042e6d>] ret_from_fork+0x2d/0x50\n\nFix this by freeing the CPU idle device after unregistering it.",
  "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": "6.1.83",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-26894"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/d351bcadab6caa6d8ce7159ff4b77e2da35c09fa"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/ea96bf3f80625cddba1391a87613356b1b45716d"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/c2a30c81bf3cb9033fa9f5305baf7c377075e2e5"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/1cbaf4c793b0808532f4e7b40bc4be7cec2c78f2"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/fad9bcd4d754cc689c19dc04d2c44b82c1a5d6c8"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/3d48e5be107429ff5d824e7f2a00d1b610d36fbc"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/8d14a4d0afb49a5b8535d414c782bb334860e73e"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/cd5c2d0b09d5b6d3f0a7bbabe6761a4997e9dee9"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/e18afcb7b2a12b635ac10081f943fcf84ddacc51"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
  }
}