What’s Vulnerable › Vulnerabilities

CVE-2023-53807: clk: clocking-wizard: Fix Oops in clk_wzrd_register_divider()

• 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: 2025-12-09 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: clk: clocking-wizard: Fix Oops in clk_wzrd_register_divider() Smatch detected this potential error pointer dereference clk_wzrd_register_divider(). If devm_clk_hw_register() fails then it sets "hw" to an error pointer and then dereferences it on the next line. Return the error directly instead.

Affected products

• Linux kernel: 5.13 — fixed in 6.5

How to fix

Upgrade to a fixed version: Linux kernel 6.5. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/25dbdfb7b71ef8601d00c6d9a2b1a96de28b30c5
• https://git.kernel.org/stable/c/2f276dd9c0f835242836d9f6823035158ce2585c
• https://git.kernel.org/stable/c/9c632a6396505a019ea6d12b5ab45e659a542a93
• https://git.kernel.org/stable/c/b35cb0c05b8dafe23ae5e8b605a91b88bcf4aba7
• https://git.kernel.org/stable/c/f078a65ebf930f4305e3c415a8338d22391642c9

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