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mmc: mxcmmc: cancel data work and watchdog on remove

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: mmc: mxcmmc: cancel data work and watchdog on remove mxcmci_remove() frees the host through the devm tail, but neither it nor mmc_remove_host() drains the driver's own asynchronous state. host->watchdog, a 10 s timer armed on the DMA path in mxcmci_setup_data(), is deleted only by the DMA- and IRQ-complete paths, which the remove path does not explicitly drain; it can therefore fire after the host is freed and dereference it in mxcmci_watchdog(). host->datawork, armed from the IRQ handler on the PIO path, is not cancelled by the remove path either. Free the devm-registered IRQ, then cancel datawork and delete the watchdog in mxcmci_remove(), before dma_release_channel(). Freeing the IRQ first keeps a trailing handler from re-arming datawork between the cancel and the host free. Both callbacks are non-self-rearming. This issue was found by an in-house static analysis tool.

Announced Source revision 1
Original source ↗

CVE-2026-98210

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-98210

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "f6ad0a481342223b2e7ae9f55b154e14f1391ada",
        "lessThan": "740f595f8ad678cb4d79f13edd12851df2492bdd",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f6ad0a481342223b2e7ae9f55b154e14f1391ada",
        "lessThan": "d3641afe6ee76d852834a34ef0669eefced32752",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f6ad0a481342223b2e7ae9f55b154e14f1391ada",
        "lessThan": "314966b490323bdcfd3162a1398b00e587e0ced4",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f6ad0a481342223b2e7ae9f55b154e14f1391ada",
        "lessThan": "ae10838a7cdf0e54caa9d0a4f488704fd04e7f01",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f6ad0a481342223b2e7ae9f55b154e14f1391ada",
        "lessThan": "a1ff367e0dc961d73707add508a95df5c3509bd1",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f6ad0a481342223b2e7ae9f55b154e14f1391ada",
        "lessThan": "23383e0578b58ba2dc0730cf9f7806bd66bf859a",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f6ad0a481342223b2e7ae9f55b154e14f1391ada",
        "lessThan": "e2948c4232209e87c861a680f20f1e3cf8a57fec",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f6ad0a481342223b2e7ae9f55b154e14f1391ada",
        "lessThan": "d3a421c82412344022982d5b91ba23194a0a6f29",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "drivers/mmc/host/mxcmmc.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "3.7"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "3.7",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.271",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.222",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.189",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.158",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.112",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.54",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.2.8",
        "versionType": "semver",
        "lessThanOrEqual": "7.2.*"
      },
      {
        "status": "unaffected",
        "version": "7.3",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/mmc/host/mxcmmc.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-98210

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#38290 · Revision 1
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Publisher date
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