CVE-2023-52510: Linux Kernel

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: ieee802154: ca8210: Fix a potential UAF in ca8210_probe If of_clk_add_provider() fails in ca8210_register_ext_clock(), it calls clk_unregister() to release priv->clk and returns an error. However, the caller ca8210_probe() then calls ca8210_remove(), where priv->clk is freed again in ca8210_unregister_ext_clock(). In this case, a use-after-free may happen in the second time we call clk_unregister(). Fix this by removing the first clk_unregister(). Also, priv->clk could be an error code on failure of clk_register_fixed_rate(). Use IS_ERR_OR_NULL to catch this case in ca8210_unregister_ext_clock().

Affected products

• Linux Linux Kernel: from 4.12, before 4.14.328 (fixed in 4.14.328); from 4.15, before 4.19.297 (fixed in 4.19.297); from 4.20, before 5.4.259 (fixed in 5.4.259); from 5.5, before 5.10.199 (fixed in 5.10.199); from 5.11, before 5.15.136 (fixed in 5.15.136); from 5.16, before 6.1.59 (fixed in 6.1.59); …

Published 2024-03-02. Last modified 2026-06-17.