Updated: 2026-02-27 00:17:06.240346
Description:
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().
| Links | NIST | CIRCL | RHEL | Ubuntu |
| Severity | Score | |
|---|---|---|
| CVSS Version 2.x | 0.0 | |
| CVSS Version 3.x | HIGH | 7.8 |
| OS name | Project name | Version | Score | Severity | Status | Errata | Last updated | Statement |
|---|---|---|---|---|---|---|---|---|
| AlmaLinux 9.2 ESU | kernel | 5.14.0 | 7.8 | HIGH | Not Vulnerable | 2025-01-08 23:39:53 | Not affected: The issue is limited to the Cascoda CA8210 IEEE 802.15.4 driver (drivers/net/ieee80215... | |
| CentOS 8.4 ELS | kernel | 4.18.0 | 7.8 | HIGH | Released | CLSA-2025:1736778412 | 2025-01-15 01:12:55 | |
| CentOS 8.5 ELS | kernel | 4.18.0 | 7.8 | HIGH | Released | CLSA-2025:1736778632 | 2025-01-15 01:12:55 | |
| Ubuntu 16.04 ELS | linux-hwe | 4.15.0 | 7.8 | HIGH | Released | CLSA-2024:1729516068 | 2024-10-21 10:51:49 | |
| Ubuntu 16.04 ELS | linux | 4.4.0 | 7.8 | HIGH | Not Vulnerable | 2024-10-25 14:28:42 | ||
| Ubuntu 18.04 ELS | linux | 4.15.0 | 7.8 | HIGH | Released | CLSA-2024:1729518310 | 2024-10-21 14:25:35 |