CVE-2025-39954

Summary

In the Linux kernel, the following vulnerability has been resolved:

clk: sunxi-ng: mp: Fix dual-divider clock rate readback

When dual-divider clock support was introduced, the P divider offset was left out of the .recalc_rate readback function. This causes the clock rate to become bogus or even zero (possibly due to the P divider being 1, leading to a divide-by-zero).

Fix this by incorporating the P divider offset into the calculation.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux45717804b75eda8a76eacc04509ca4d68dd2caaf < 40108f69c372af3aea73e7829d6849a44638d662affected
LinuxLinux45717804b75eda8a76eacc04509ca4d68dd2caaf < 25fbbaf515acd13399589bd5ee6de5f35740cef2affected
LinuxLinux6.15affected
LinuxLinux0 < 6.15unaffected
LinuxLinux6.16.9 <= 6.16.*unaffected
LinuxLinux6.17 <= *unaffected

Weaknesses

References