Bluetooth: hci_event: validate LE Set CIG Parameters response
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.
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
- Added to Heist Feed
- Publisher date