Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: usb: ucsi_acpi: Increase the command completion timeout Commit 130a96d698d7 ("usb: typec: ucsi: acpi: Increase command completion timeout value") increased the timeout from 5 seconds to 60 seconds due to issues related to alternate mode discovery. After the alternate mode discovery switch to polled mode the timeout was reduced, but instead of being set back to 5 seconds it was reduced to 1 second. This is causing problems when using a Lenovo ThinkPad X1 yoga gen7 connected over Type-C to a LG 27UL850-W (charging DP over Type-C). When the monitor is already connected at boot the following error is logged: "PPM init failed (-110)", /sys/class/typec is empty and on unplugging the NULL pointer deref fixed earlier in this series happens. When the monitor is connected after boot the following error is logged instead: "GET_CONNECTOR_STATUS failed (-110)". Setting the timeout back to 5 seconds fixes both cases.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected e08065069fc7b074712378a95a3522d557e9bbe1 before 1e8525f37871741a52370627633962f8bdcab15a; affected e08065069fc7b074712378a95a3522d557e9bbe1 before 8346d21d1d8a63f46f60e6899f4f80b1306acf32; affected e08065069fc7b074712378a95a3522d557e9bbe1 before 02d210f434249a7edbc160969b75df030dc6934d |
| Linux / Linux | affected 5.16; unaffected 0 before 5.16; unaffected 6.1.22 through 6.1.*; unaffected 6.2.9 through 6.2.*; unaffected 6.3 through * |
CWE
No CWE identifiers supplied.