Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: prevent hang on link training fail [Why] When link training fails, the phy clock will be disabled. However, in enable_streams, it is assumed that link training succeeded and the mux selects the phy clock, causing a hang when a register write is made. [How] When enable_stream is hit, check if link training failed. If it did, fall back to the ref clock to avoid a hang and keep the system in a recoverable state.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 7462475e3a06fbb0b36243b391296f9f411e9041 before 52cdc47cf6519e2912a34d29b7eeb3f10ca85efa; affected 7462475e3a06fbb0b36243b391296f9f411e9041 before 0363c03672cd3191f037905bf981eb523a3b71b1; affected 7462475e3a06fbb0b36243b391296f9f411e9041 before 04bf4f2a497e9877c425c5124652e61fb8a1a0aa; affected 7462475e3a06fbb0b36243b391296f9f411e9041 before 8058061ed9d6bc259d1e678607b07d259342c08f |
| Linux / Linux | affected 6.3; unaffected 0 before 6.3; unaffected 6.6.160 through 6.6.*; unaffected 6.12.25 through 6.12.*; unaffected 6.14.4 through 6.14.*; unaffected 6.15 through * |
CWE
No CWE identifiers supplied.