usb: typec: tcpm: validate VDO count in Discover Identity ACK handlers
In the Linux kernel, the following vulnerability has been resolved: usb: typec: tcpm: validate VDO count in Discover Identity ACK handlers Properly validate the count passed from a device when calling svdm_consume_identity() or svdm_consume_identity_sop_prime() as the device-controlled value could index off of the static arrays, which could leak data.
CVE-2026-63963
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-2026-63963
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": "f0690a25a140b853b1842fa80faf828601bb47e8",
"lessThan": "6bacd22e1eae77abf089bbdc016270200a8dc83b",
"versionType": "git"
},
{
"status": "affected",
"version": "f0690a25a140b853b1842fa80faf828601bb47e8",
"lessThan": "569f7971542eb10025d8a0989b83f28a29d8ba20",
"versionType": "git"
},
{
"status": "affected",
"version": "f0690a25a140b853b1842fa80faf828601bb47e8",
"lessThan": "f9d787fbe83127105e42088cca40e5118db0d810",
"versionType": "git"
},
{
"status": "affected",
"version": "f0690a25a140b853b1842fa80faf828601bb47e8",
"lessThan": "ed8649f3822e211d025bcab5158af6f8a38c8705",
"versionType": "git"
},
{
"status": "affected",
"version": "f0690a25a140b853b1842fa80faf828601bb47e8",
"lessThan": "8fbc349e8383125dd2d8de1c1e926279d398ab17",
"versionType": "git"
}
],
"programFiles": [
"drivers/usb/typec/tcpm/tcpm.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.12"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.12",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.93",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.35",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.0.12",
"versionType": "semver",
"lessThanOrEqual": "7.0.*"
},
{
"status": "unaffected",
"version": "7.1",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/usb/typec/tcpm/tcpm.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-63963
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #46407 · Revision 1
- Added to Heist Feed
- Publisher date