Threats Tagged 'ghsa-qv9g-m2j2-jrgj'
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Threats Tagged 'ghsa-qv9g-m2j2-jrgj'
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A vulnerability in the Linux kernel's s390 architecture perf subsystem was resolved. The issue caused kernel crashes when CPUs were hotplugged (added or removed) during the execution of perf commands with task context. The root cause was improper handling of per-CPU event structures when CPUs were offline during event initialization but brought online during runtime, leading to NULL pointer dereferences and kernel panics. The fix introduces CPU hotplug callbacks to properly create and remove per-CPU counter data, ensuring stability when CPUs change state during perf runs. Join the discussion | GCVE Database | 09/11/2026, 21:31:27 UTC Added: 09/12/2026, 00:43:08 UTC |
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