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usb: dwc3: clear forceRM when issuing EndTransfer

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: usb: dwc3: clear forceRM when issuing EndTransfer The forceRM bit of the DEPCMD register controls the behavior of the EndTransfer command used to stop an active transfer. Older DWC3 programming guide revisions recommended setting forceRM=1 when issuing EndTransfer. Newer programming guide revisions recommend issuing EndTransfer with forceRM cleared. With forceRM=1 on DWC_usb31 v2.00a and v2.10a controllers, a transfer aborted through the ep_dequeue path was observed to remain active after EndTransfer completion. A subsequent StartTransfer issued on the same endpoint triggered writes associated with the aborted transfer. This resulted in an SMMU fault because the transfer buffer had already been unmapped during EndTransfer command-completion cleanup. Using forceRM=0 eliminates the issue. Although older DWC3 programming guide revisions recommended setting forceRM=1, no issues are known from using forceRM=0. Clear forceRM when issuing EndTransfer to provide consistent EndTransfer behavior and align with newer programming guide recommendations.

Announced Source revision 1
Original source ↗

CVE-2026-90030

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-2026-90030

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": "ab99c4be945724b032cc55e05c6738fe1d84bf70",
        "lessThan": "7a50e138fa28e5ba76b11af66ed41cc300c0f2be",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "1e43c86d84fb0503e82a143e017f35421498fc1a",
        "lessThan": "9f1e57c484f9edeaaa5a27a03ed985e98496e81d",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "1e43c86d84fb0503e82a143e017f35421498fc1a",
        "lessThan": "0afe5c31612de3d18cc6d16e616da4a48ba1e5a2",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "1e43c86d84fb0503e82a143e017f35421498fc1a",
        "lessThan": "e01408ee52fe5cb2d0b43f47f359336af2b6c316",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "1e43c86d84fb0503e82a143e017f35421498fc1a",
        "lessThan": "b58e6200450d350314db0ecda7d6d1bde3281e80",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "6.6.37",
        "lessThan": "6.6.160",
        "versionType": "semver"
      }
    ],
    "programFiles": [
      "drivers/usb/dwc3/ep0.c",
      "drivers/usb/dwc3/gadget.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "6.9"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "6.9",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "6.6.160",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.112",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.51",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.2.5",
        "versionType": "semver",
        "lessThanOrEqual": "7.2.*"
      },
      {
        "status": "unaffected",
        "version": "7.3",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/usb/dwc3/ep0.c",
      "drivers/usb/dwc3/gadget.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-90030

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#48584 · Revision 1
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Publisher date
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