What’s Vulnerable › Vulnerabilities

CVE-2025-71196: phy: stm32-usphyc: Fix off by one in probe()

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-02-04 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: phy: stm32-usphyc: Fix off by one in probe() The "index" variable is used as an index into the usbphyc->phys[] array which has usbphyc->nphys elements. So if it is equal to usbphyc->nphys then it is one element out of bounds. The "index" comes from the device tree so it's data that we trust and it's unlikely to be wrong, however it's obviously still worth fixing the bug. Change the > to >=.

Affected products

• Linux kernel: 4.17 — fixed in 6.19

How to fix

Upgrade to a fixed version: Linux kernel 6.19. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/76b870fdaad82171a24b8aacffe5e4d9e0d2ee2c
• https://git.kernel.org/stable/c/7c27eaf183563b86d815ff6e9cca0210b4cfa051
• https://git.kernel.org/stable/c/a9eec890879731c280697fdf1c50699e905b2fa7
• https://git.kernel.org/stable/c/b91c9f6bfb04e430adeeac7e7ebc9d80f9d72bad
• https://git.kernel.org/stable/c/c06f13876cbad702582cd67fc77356e5524d02cd
• https://git.kernel.org/stable/c/cabd25b57216ddc132efbcc31f972baa03aad15a
• https://git.kernel.org/stable/c/fb9d513cdf1614bf0f0e785816afb1faae3f81af

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