Linux kernel Heap Buffer Overflow DoS

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...