Tracker / CVE-2023-52859
CVE-2023-52859
High 7.8
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.
Affected products and versions
| linux | linux_kernel · 5.13 → 5.15.139 |
|---|---|
| linux | linux_kernel · 5.16 → 6.1.63 |
| linux | linux_kernel · 6.2 → 6.5.12 |
| linux | linux_kernel · 6.6 → 6.6.2 |
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.