Tracker / CVE-2023-52510
CVE-2023-52510
High 7.8
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 and versions
| linux | linux_kernel |
|---|---|
| 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 · 5.11 → 5.15.136 |
| linux | linux_kernel · 5.16 → 6.1.59 |
| linux | linux_kernel · 5.5 → 5.10.199 |
| linux | linux_kernel · 6.2 → 6.5.8 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.