CVE-2025-40107 (GCVE-0-2025-40107)

Vulnerability from cvelistv5 – Published: 2025-11-03 12:15 – Updated: 2026-01-02 15:33
VLAI?
Title
can: hi311x: fix null pointer dereference when resuming from sleep before interface was enabled
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 57e83fb9b7468c75cb65cde1d23043553c346c6d , < d1fc4c041459e2d4856c1b2501486ba4f0cbf96b (git)
Affected: 57e83fb9b7468c75cb65cde1d23043553c346c6d , < e93af787187e585933570563c643337fa731584a (git)
Affected: 57e83fb9b7468c75cb65cde1d23043553c346c6d , < 1d2ef21f02baff0c109ad78b9e835fb4acb14533 (git)
Affected: 57e83fb9b7468c75cb65cde1d23043553c346c6d , < fd00cf38fd437c979f0e5905e3ebdfc3f55a4b96 (git)
Affected: 57e83fb9b7468c75cb65cde1d23043553c346c6d , < 6b696808472197b77b888f50bc789a3bae077743 (git)
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    Linux Linux Affected: 4.12
Unaffected: 0 , < 4.12 (semver)
Unaffected: 6.1.156 , ≤ 6.1.* (semver)
Unaffected: 6.6.111 , ≤ 6.6.* (semver)
Unaffected: 6.12.52 , ≤ 6.12.* (semver)
Unaffected: 6.16.12 , ≤ 6.16.* (semver)
Unaffected: 6.17 , ≤ * (original_commit_for_fix)
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{
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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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              "version": "6.16.12",
              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.17",
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            }
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      ],
      "cpeApplicability": [
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          "nodes": [
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              "operator": "OR"
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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": "2026-01-02T15:33:03.719Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/d1fc4c041459e2d4856c1b2501486ba4f0cbf96b"
        },
        {
          "url": "https://git.kernel.org/stable/c/e93af787187e585933570563c643337fa731584a"
        },
        {
          "url": "https://git.kernel.org/stable/c/1d2ef21f02baff0c109ad78b9e835fb4acb14533"
        },
        {
          "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",
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-40107",
    "datePublished": "2025-11-03T12:15:12.587Z",
    "dateReserved": "2025-04-16T07:20:57.167Z",
    "dateUpdated": "2026-01-02T15:33:03.719Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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