CVE-2023-52510

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().

• linux linux kernel (>= 4.12 < 4.14.328) • linux linux kernel (>= 4.15 < 4.19.297) • linux linux kernel (>= 4.20 < 5.4.259) • linux linux kernel (>= 5.5 < 5.10.199) • linux linux kernel (>= 5.11 < 5.15.136) • linux linux kernel (>= 5.16 < 6.1.59) • linux linux kernel (>= 6.2 < 6.5.8) • linux linux kernel 6.6