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Improper Handling of Exceptional Conditions

CVE-2021-28971

Medium
5.5/10

Summary

In intel_pmu_drain_pebs_nhm in arch/x86/events/intel/ds.c in the Linux kernel through 5.11.8 on some Haswell CPUs, userspace applications (such as perf-fuzzer) can cause a system crash because the PEBS status in a PEBS record is mishandled, aka CID-d88d05a9e0b6.

  • LOW
  • LOCAL
  • NONE
  • UNCHANGED
  • NONE
  • LOW
  • NONE
  • HIGH

CWE-755 - Improper Handling of Exceptional Conditions

The software does not handle or incorrectly handles an exceptional condition.

References

Advisory Timeline

  • Published