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.
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/569f7971542eb10025d8a0989b83f28a29d8ba20
- https://git.kernel.org/stable/c/8fbc349e8383125dd2d8de1c1e926279d398ab17
- https://git.kernel.org/stable/c/ed8649f3822e211d025bcab5158af6f8a38c8705
- https://git.kernel.org/stable/c/f9d787fbe83127105e42088cca40e5118db0d810
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63963.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-63963