Description
In the Linux kernel, the following vulnerability has been resolved: usb: typec: ucsi: Handle incorrect num_connectors capability The UCSI spec states that the num_connectors field is 7 bits, and the 8th bit is reserved and should be set to zero. Some buggy FW has been known to set this bit, and it can lead to a system not booting. Flag that the FW is not behaving correctly, and auto-fix the value so that the system boots correctly. Found on Lenovo P1 G8 during Linux enablement program. The FW will be fixed, but seemed worth addressing in case it hit platforms that aren't officially Linux supported.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
c1b0bc2dabfa884dea49c02adaf3cd6b52b33d2f to < 07c8d2a109d847775b3b4e2c3294c8e1eea75432affectedc1b0bc2dabfa884dea49c02adaf3cd6b52b33d2f to < 58941bbb0050e365a98c64f1fc4a9a0ac127dba6affectedc1b0bc2dabfa884dea49c02adaf3cd6b52b33d2f to < f72f97d0aee4a993a35f2496bca5efd24827235daffectedc1b0bc2dabfa884dea49c02adaf3cd6b52b33d2f to < 914605b0de8128434eafc9582445306830748b93affectedc1b0bc2dabfa884dea49c02adaf3cd6b52b33d2f to < 3042a57a8e8bce4a3100c3f6f03dc372aab24943affectedc1b0bc2dabfa884dea49c02adaf3cd6b52b33d2f to < 132fe187e0d940f388f839fe2cde9b84106ad20daffectedc1b0bc2dabfa884dea49c02adaf3cd6b52b33d2f to < 30cd2cb1abf4c4acdb1ddb468c946f68939819fbaffected
Linux Linux
Default version status: affected
4.13affected0 to < 4.13unaffected5.10.248 to ≤ 5.10.*unaffected5.15.198 to ≤ 5.15.*unaffected6.1.160 to ≤ 6.1.*unaffected6.6.120 to ≤ 6.6.*unaffected6.12.64 to ≤ 6.12.*unaffected6.18.3 to ≤ 6.18.*unaffected6.19 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/07c8d2a109d847775b3b4e2c3294c8e1eea75432 ↗
- https://git.kernel.org/stable/c/58941bbb0050e365a98c64f1fc4a9a0ac127dba6 ↗
- https://git.kernel.org/stable/c/f72f97d0aee4a993a35f2496bca5efd24827235d ↗
- https://git.kernel.org/stable/c/914605b0de8128434eafc9582445306830748b93 ↗
- https://git.kernel.org/stable/c/3042a57a8e8bce4a3100c3f6f03dc372aab24943 ↗
- https://git.kernel.org/stable/c/132fe187e0d940f388f839fe2cde9b84106ad20d ↗
- https://git.kernel.org/stable/c/30cd2cb1abf4c4acdb1ddb468c946f68939819fb ↗