CVE-2025-40107 (GCVE-0-2025-40107)
Vulnerability from cvelistv5
Published
2025-11-03 12:15
Modified
2025-11-03 12:15
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: can: hi311x: fix null pointer dereference when resuming from sleep before interface was enabled This issue is similar to the vulnerability in the `mcp251x` driver, which was fixed in commit 03c427147b2d ("can: mcp251x: fix resume from sleep before interface was brought up"). In the `hi311x` driver, when the device resumes from sleep, the driver schedules `priv->restart_work`. However, if the network interface was not previously enabled, the `priv->wq` (workqueue) is not allocated and initialized, leading to a null pointer dereference. To fix this, we move the allocation and initialization of the workqueue from the `hi3110_open` function to the `hi3110_can_probe` function. This ensures that the workqueue is properly initialized before it is used during device resume. And added logic to destroy the workqueue in the error handling paths of `hi3110_can_probe` and in the `hi3110_can_remove` function to prevent resource leaks.
References
Impacted products
Vendor Product Version
Linux Linux Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
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{
  "containers": {
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/can/spi/hi311x.c"
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          "vendor": "Linux",
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      "cpeApplicability": [
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: hi311x: fix null pointer dereference when resuming from sleep before interface was enabled\n\nThis issue is similar to the vulnerability in the `mcp251x` driver,\nwhich was fixed in commit 03c427147b2d (\"can: mcp251x: fix resume from\nsleep before interface was brought up\").\n\nIn the `hi311x` driver, when the device resumes from sleep, the driver\nschedules `priv-\u003erestart_work`. However, if the network interface was\nnot previously enabled, the `priv-\u003ewq` (workqueue) is not allocated and\ninitialized, leading to a null pointer dereference.\n\nTo fix this, we move the allocation and initialization of the workqueue\nfrom the `hi3110_open` function to the `hi3110_can_probe` function.\nThis ensures that the workqueue is properly initialized before it is\nused during device resume. And added logic to destroy the workqueue\nin the error handling paths of `hi3110_can_probe` and in the\n`hi3110_can_remove` function to prevent resource leaks."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-11-03T12:15:12.587Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/d1fc4c041459e2d4856c1b2501486ba4f0cbf96b"
        },
        {
          "url": "https://git.kernel.org/stable/c/e93af787187e585933570563c643337fa731584a"
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          "url": "https://git.kernel.org/stable/c/fd00cf38fd437c979f0e5905e3ebdfc3f55a4b96"
        },
        {
          "url": "https://git.kernel.org/stable/c/6b696808472197b77b888f50bc789a3bae077743"
        }
      ],
      "title": "can: hi311x: fix null pointer dereference when resuming from sleep before interface was enabled",
      "x_generator": {
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  },
  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2025-40107",
    "datePublished": "2025-11-03T12:15:12.587Z",
    "dateReserved": "2025-04-16T07:20:57.167Z",
    "dateUpdated": "2025-11-03T12:15:12.587Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-40107\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-11-03T13:15:36.477\",\"lastModified\":\"2025-11-04T15:41:31.450\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ncan: hi311x: fix null pointer dereference when resuming from sleep before interface was enabled\\n\\nThis issue is similar to the vulnerability in the `mcp251x` driver,\\nwhich was fixed in commit 03c427147b2d (\\\"can: mcp251x: fix resume from\\nsleep before interface was brought up\\\").\\n\\nIn the `hi311x` driver, when the device resumes from sleep, the driver\\nschedules `priv-\u003erestart_work`. However, if the network interface was\\nnot previously enabled, the `priv-\u003ewq` (workqueue) is not allocated and\\ninitialized, leading to a null pointer dereference.\\n\\nTo fix this, we move the allocation and initialization of the workqueue\\nfrom the `hi3110_open` function to the `hi3110_can_probe` function.\\nThis ensures that the workqueue is properly initialized before it is\\nused during device resume. And added logic to destroy the workqueue\\nin the error handling paths of `hi3110_can_probe` and in the\\n`hi3110_can_remove` function to prevent resource leaks.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1d2ef21f02baff0c109ad78b9e835fb4acb14533\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6b696808472197b77b888f50bc789a3bae077743\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d1fc4c041459e2d4856c1b2501486ba4f0cbf96b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e93af787187e585933570563c643337fa731584a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/fd00cf38fd437c979f0e5905e3ebdfc3f55a4b96\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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