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Medium severity5.5NVD Advisory· Published Oct 9, 2025· Updated Jun 17, 2026

CVE-2025-39954

CVE-2025-39954

Description

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

10
  • Linux/Kernel9 versions
    cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 8 more
    • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=6.15,<6.16.9
    • cpe:2.3:o:linux:linux_kernel:6.17:rc1:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:6.17:rc2:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:6.17:rc3:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:6.17:rc4:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:6.17:rc5:*:*:*:*:*:*
    • cpe:2.3:o:linux:linux_kernel:6.17:rc6:*:*:*:*:*:*
    • (no CPE)range: 6.15
    • (no CPE)
  • osv-coords
    pkg:linux/kernel
    Range: >= 6.15.0, < 6.16.9

Patches

Vulnerability mechanics

References

2

News mentions

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