CVE-2026-98213 (GCVE-0-2026-98213)
Vulnerability from cvelistv5
Published
2026-10-06 08:44
Modified
2026-10-19 09:15
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: mmc: core: Cancel SDIO IRQ work before freeing host A host controller that uses sdio_signal_irq() schedules host->sdio_irq_work from its interrupt handler. That work is only cancelled on the suspend path (mmc_sdio_suspend()), not on the remove/free path, so a worker armed just before the controller freed its IRQ can run after mmc_host_classdev_release() has freed the host and dereference it through container_of(). Cancel host->sdio_irq_work in mmc_free_host(), like the existing host->detect drain added by commit 1036f69e2513 ("mmc: core: Cancel delayed work before releasing host"). This issue was found by an in-house static analysis tool.
References
Impacted products
Vendor Product Version
Linux Linux Version: 682696605c7093d2800c498c04166831e5aedf87
Version: 682696605c7093d2800c498c04166831e5aedf87
Version: 682696605c7093d2800c498c04166831e5aedf87
Version: 682696605c7093d2800c498c04166831e5aedf87
Version: 682696605c7093d2800c498c04166831e5aedf87
Version: 682696605c7093d2800c498c04166831e5aedf87
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{
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          "programFiles": [
            "drivers/mmc/core/host.c"
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      "cpeApplicability": [
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          "nodes": [
            {
              "cpeMatch": [
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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\nmmc: core: Cancel SDIO IRQ work before freeing host\n\nA host controller that uses sdio_signal_irq() schedules host-\u003esdio_irq_work\nfrom its interrupt handler.  That work is only cancelled on the suspend\npath (mmc_sdio_suspend()), not on the remove/free path, so a worker armed\njust before the controller freed its IRQ can run after\nmmc_host_classdev_release() has freed the host and dereference it through\ncontainer_of().\n\nCancel host-\u003esdio_irq_work in mmc_free_host(), like the existing\nhost-\u003edetect drain added by commit 1036f69e2513 (\"mmc: core: Cancel\ndelayed work before releasing host\").\n\nThis issue was found by an in-house static analysis tool."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T09:15:44.065Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/bae1cf4f9902b2065bd78b759c7fe6312855f05e"
        },
        {
          "url": "https://git.kernel.org/stable/c/0bf3d168a2cc20b120d6b50f0a8ac5b40ff4d589"
        },
        {
          "url": "https://git.kernel.org/stable/c/1d6e7315ee1c992b4ca42c9b11c5ed0e925a00e0"
        },
        {
          "url": "https://git.kernel.org/stable/c/4553b5004eca9c9eae29a421f1a9c4d5db2c9114"
        },
        {
          "url": "https://git.kernel.org/stable/c/2a863458828ade0671c2bc2e469bbd7f2340eb03"
        },
        {
          "url": "https://git.kernel.org/stable/c/6feadbecdae60a6324c967f3b1493741083793a3"
        }
      ],
      "title": "mmc: core: Cancel SDIO IRQ work before freeing host",
      "x_generator": {
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      }
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98213",
    "datePublished": "2026-10-06T08:44:49.352Z",
    "dateReserved": "2026-09-25T10:25:14.325Z",
    "dateUpdated": "2026-10-19T09:15:44.065Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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