The vulnerability of the perf_event_swap_task_ctx_data function in the Linux operating system’s kernel allows a hacker to trigger a service failure.

The vulnerability of the perfeventswaptaskctxdata function in the Linux operating system’s kernel is related to the exhaustion of resources on the central processor. Exploiting this vulnerability can allow a remote attacker to cause service interruptions...

CVE-2025-21895

In the Linux kernel, the following vulnerability has been resolved: perf/core: Order the PMU list to fix warning about unordered pmuctxlist Syskaller triggers a warning due to prevepc-pmu != nextepc-pmu in perfeventswaptaskctxdata. vmcore shows that two lists have the same perfeventpmucontext, bu...