CVE-2023-52859
Description
In the Linux kernel, the following vulnerability has been resolved: perf: hisi: Fix use-after-free when register pmu fails When we fail to register the uncore pmu, the pmu context may not been allocated. The error handing will call cpuhp_state_remove_instance() to call uncore pmu offline callback, which migrate the pmu context. Since that's liable to lead to some kind of use-after-free. Use cpuhp_state_remove_instance_nocalls() instead of cpuhp_state_remove_instance() so that the notifiers don't execute after the PMU device has been failed to register.
How to fix
- linux linux_kernel5.15.139, 6.1.63, 6.5.12, 6.6.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 5.13 ≤ v < 5.15.139, 5.16 ≤ v < 6.1.63, 6.2 ≤ v < 6.5.12, 6.6 ≤ v < 6.6.2 | 5.15.139, 6.1.63, 6.5.12, 6.6.2 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.