CVE-2026-63958
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
usb: typec: ucsi: validate connector number in ucsi_connector_change()
In the Linux kernel, the following vulnerability has been resolved: usb: typec: ucsi: validate connector number in ucsi_connector_change() The connector number in a UCSI CCI notification is a 7-bit field supplied by the PPM. ucsi_connector_change() uses it to index the ucsi->connector[] array without checking it against the number of connectors the PPM reported at init time, so a buggy or malicious PPM (EC firmware, or an I2C-attached UCSI controller on the ccg / stm32g0 / glink transports) can drive schedule_work() on memory past the end of the array. Reject connector numbers that are zero or exceed cap.num_connectors before dereferencing the array.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| c1b0bc2dabfa884dea49c02adaf3cd6b52b33d2f | affected | git | cea949203faef9cb783adc7b978cce056271e057 | Unavailable | None listed |
| c1b0bc2dabfa884dea49c02adaf3cd6b52b33d2f | affected | git | 156b6f0aec6108909b0c4aedc78865b12766b347 | Unavailable | None listed |
| c1b0bc2dabfa884dea49c02adaf3cd6b52b33d2f | affected | git | bd24d92af4ae021b6209f28e9a57e1bf2260d4fd | Unavailable | None listed |
| c1b0bc2dabfa884dea49c02adaf3cd6b52b33d2f | affected | git | 0edd1e21587b0483c7ceb993b9fb9668bbef7433 | Unavailable | None listed |
| c1b0bc2dabfa884dea49c02adaf3cd6b52b33d2f | affected | git | 5af2719b460ab904c504fc069d1dd2a3aa2b22b0 | Unavailable | None listed |
| c1b0bc2dabfa884dea49c02adaf3cd6b52b33d2f | affected | git | 288a81a8507052bcfbf884d39a463c44c42c5fd9 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 4.13 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.13 | Unavailable | None listed |
| 6.1.176 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.143 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.93 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.35 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.0.12 | unaffected | semver | Unavailable | 7.0.* | None listed |
| 7.1 | unaffected | original_commit_for_fix | Unavailable | * | None listed |