Description
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 products
linux: linux kernel
References5
- git.kernel.org/stable/c/1439673b78185eaaa5fae444b3a9d58c434ee78e Patch
- git.kernel.org/stable/c/eb963d7948ce6571939c6875424b557b25f16610 Patch
- git.kernel.org/stable/c/0c4f89f02c72f7cfb98a9a09cae89cc2e39e6017
- git.kernel.org/stable/c/47a0da0c80749767de1bc0a7a27a69b34c22fbda
- git.kernel.org/stable/c/5b447255bf170aee508d50c4a3a1156eb6dcc9b4
Metrics
- CVSS 3.1
-
5.5
MEDIUM
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 15 · as of 7 November 2026
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