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.
References
Configurations
Configuration 1 (hide)
|
History
30 Oct 2026, 14:32
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.1:rc5:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:* |
|
| CWE | NVD-CWE-noinfo | |
| References | () https://git.kernel.org/stable/c/0edd1e21587b0483c7ceb993b9fb9668bbef7433 - Patch | |
| References | () https://git.kernel.org/stable/c/156b6f0aec6108909b0c4aedc78865b12766b347 - Patch | |
| References | () https://git.kernel.org/stable/c/288a81a8507052bcfbf884d39a463c44c42c5fd9 - Patch | |
| References | () https://git.kernel.org/stable/c/5af2719b460ab904c504fc069d1dd2a3aa2b22b0 - Patch | |
| References | () https://git.kernel.org/stable/c/bd24d92af4ae021b6209f28e9a57e1bf2260d4fd - Patch | |
| References | () https://git.kernel.org/stable/c/cea949203faef9cb783adc7b978cce056271e057 - Patch | |
| First Time |
Linux linux Kernel
Linux |
|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
Information
Published : 2026-07-19 16:17
Updated : 2026-10-30 14:32
NVD link : CVE-2026-63958
Mitre link : CVE-2026-63958
CVE.ORG link : CVE-2026-63958
JSON object : View
Products Affected
linux
- linux_kernel
CWE