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THREATINT
PUBLISHED

CVE-2025-38041

clk: sunxi-ng: h616: Reparent GPU clock during frequency changes



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.

Reserved 2025-04-16 | Published 2025-06-18 | Updated 2025-06-18 | Assigner Linux

Product status

Default status
unaffected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 1439673b78185eaaa5fae444b3a9d58c434ee78e
affected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before eb963d7948ce6571939c6875424b557b25f16610
affected

Default status
affected

6.14.9
unaffected

6.15
unaffected

References

git.kernel.org/...c/1439673b78185eaaa5fae444b3a9d58c434ee78e

git.kernel.org/...c/eb963d7948ce6571939c6875424b557b25f16610

cve.org (CVE-2025-38041)

nvd.nist.gov (CVE-2025-38041)

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