CVE-2026-98213 (GCVE-0-2026-98213)

Vulnerability from cvelistv5 – Published: 2026-10-06 08:44 – Updated: 2026-10-06 08:44
VLAI
Title
mmc: core: Cancel SDIO IRQ work before freeing host
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.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 682696605c7093d2800c498c04166831e5aedf87 , < bae1cf4f9902b2065bd78b759c7fe6312855f05e (git)
Affected: 682696605c7093d2800c498c04166831e5aedf87 , < 0bf3d168a2cc20b120d6b50f0a8ac5b40ff4d589 (git)
Affected: 682696605c7093d2800c498c04166831e5aedf87 , < 1d6e7315ee1c992b4ca42c9b11c5ed0e925a00e0 (git)
Affected: 682696605c7093d2800c498c04166831e5aedf87 , < 4553b5004eca9c9eae29a421f1a9c4d5db2c9114 (git)
Affected: 682696605c7093d2800c498c04166831e5aedf87 , < 2a863458828ade0671c2bc2e469bbd7f2340eb03 (git)
Affected: 682696605c7093d2800c498c04166831e5aedf87 , < 6feadbecdae60a6324c967f3b1493741083793a3 (git)
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Linux Linux Affected: 4.13
Unaffected: 0 , < 4.13 (semver)
Unaffected: 6.1.189 , ≤ 6.1.* (semver)
Unaffected: 6.6.158 , ≤ 6.6.* (semver)
Unaffected: 6.12.112 , ≤ 6.12.* (semver)
Unaffected: 6.18.54 , ≤ 6.18.* (semver)
Unaffected: 7.2.8 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc4 , ≤ * (original_commit_for_fix)
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{
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          "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."
        }
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        "dateUpdated": "2026-10-06T08:44:49.352Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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        },
        {
          "url": "https://git.kernel.org/stable/c/6feadbecdae60a6324c967f3b1493741083793a3"
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      "title": "mmc: core: Cancel SDIO IRQ work before freeing host",
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    "dateReserved": "2026-09-25T10:25:14.325Z",
    "dateUpdated": "2026-10-06T08:44:49.352Z",
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            "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."
          }
        ],
        "id": "CVE-2026-98213",
        "lastModified": "2026-10-06T09:18:07.770",
        "metrics": {},
        "published": "2026-10-06T09:18:07.770",
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        "vulnStatus": "Received"
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    },
    "suse_vex": {
      "aggregate_severity": "important",
      "current_release_date": "2026-10-08T16:50:22Z",
      "cve": "CVE-2026-98213",
      "id": "CVE-2026-98213",
      "initial_release_date": "2026-10-08T16:50:22Z",
      "product_status:known_affected": "176",
      "product_status:known_not_affected": "171",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-98213",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-98213.json",
      "version": "2"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.