Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: clk: sunxi-ng: h616: Reparent GPU clock during frequency changes The H616 manual does not state that the GPU PLL supports dynamic frequency configuration, so we must take extra care when changing the frequency. Currently any attempt to do device DVFS on the GPU lead to panfrost various ooops, and GPU hangs. The manual describes the algorithm for changing the PLL frequency, which the CPU PLL notifier code already support, so we reuse that to reparent the GPU clock to GPU1 clock during frequency changes.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 88dde5e23da1a16fe9a417171e6c941736b8d3a6 before 47a0da0c80749767de1bc0a7a27a69b34c22fbda; affected 88dde5e23da1a16fe9a417171e6c941736b8d3a6 before 0c4f89f02c72f7cfb98a9a09cae89cc2e39e6017; affected 88dde5e23da1a16fe9a417171e6c941736b8d3a6 before 1439673b78185eaaa5fae444b3a9d58c434ee78e; affected 88dde5e23da1a16fe9a417171e6c941736b8d3a6 before eb963d7948ce6571939c6875424b557b25f16610 |
| Linux / Linux | affected 5.12; unaffected 0 before 5.12; unaffected 6.6.160 through 6.6.*; unaffected 6.12.114 through 6.12.*; unaffected 6.14.9 through 6.14.*; unaffected 6.15 through * |
CWE
No CWE identifiers supplied.