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Bluetooth: hci_event: validate LE Set CIG Parameters response

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_event: validate LE Set CIG Parameters response The Command Complete dispatch validates only the fixed part of the LE Set CIG Parameters response. After that part is pulled from the skb, hci_cc_le_set_cig_params() trusts num_handles and reads each entry in the trailing handle array. Matching num_handles against the command's num_cis does not guarantee that the response contains the advertised handles. A truncated response from a malfunctioning controller can therefore make the handler read beyond the skb data. Validate that the remaining skb data contains all advertised handles. Include this in the existing response validation so malformed responses also follow the established CIG failure handling.

Announced Source revision 1
Original source ↗

CVE-2026-80763

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-2026-80763

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": "26afbd826ee326e63a334c37fd45e82e50a615ec",
        "lessThan": "9e05783d0bb96a7b853cc058a7c7de2dc4a62154",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "26afbd826ee326e63a334c37fd45e82e50a615ec",
        "lessThan": "26741d178f31932c9018b36b7953e6dc391436a4",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "26afbd826ee326e63a334c37fd45e82e50a615ec",
        "lessThan": "a34df5c4a439cfc04565fa5be608ed1e53134f1f",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "26afbd826ee326e63a334c37fd45e82e50a615ec",
        "lessThan": "e3f82e8f2a5915f533b57a065e9a045aa2ee03bc",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "26afbd826ee326e63a334c37fd45e82e50a615ec",
        "lessThan": "d83ecb7b96105d932dabaa56ccd7418c25fb7cbb",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "26afbd826ee326e63a334c37fd45e82e50a615ec",
        "lessThan": "6fc540e835dddb518cef3ff522b780f701cd03df",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "26afbd826ee326e63a334c37fd45e82e50a615ec",
        "lessThan": "0acd4eeb4b225b9bebbf9ef96cc10cdd79b94899",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "net/bluetooth/hci_event.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "6.0"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "6.0",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "6.1.187",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.154",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.106",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.47",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.1.11",
        "versionType": "semver",
        "lessThanOrEqual": "7.1.*"
      },
      {
        "status": "unaffected",
        "version": "7.2.1",
        "versionType": "semver",
        "lessThanOrEqual": "7.2.*"
      },
      {
        "status": "unaffected",
        "version": "7.3",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "net/bluetooth/hci_event.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-80763

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#34782 · Revision 1
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Publisher date
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