CVE-2026-80626

A flaw was found in the Linux kernel's powerpc/perf component. An issue in the fslembpmudel function can lead to a preempt count underflow. This occurs when the function attempts to decrement a preemption counter without a corresponding increment, specifically when event-hw.idx is negative. On...

CVE-2026-80626

In the Linux kernel, the following vulnerability has been resolved: powerpc/perf: fix preempt count underflow in fslembpmudel fslembpmudel unconditionally calls putcpuvarcpuhwevents at the 'out:' label, but only calls the matching getcpuvar after the 'i hw.idx is negative the function jumps to...

EUVD-2026-67502

In the Linux kernel, the following vulnerability has been resolved: powerpc/perf: fix preempt count underflow in fslembpmudel fslembpmudel unconditionally calls putcpuvarcpuhwevents at the 'out:' label, but only calls the matching getcpuvar after the 'i hw.idx is negative the function jumps to...

CVE-2026-80626

CVE-2026-80626 is a preempt count underflow in the Linux kernel 's powerpc/perf subsystem, specifically in the fsl_emb_pmu_del() function. The root cause is an unmatched put_cpu_var(cpu_hw_events) call at the 'out:' label: when event->hw.idx is negative, the function early-returns without the ...

CVE-2026-80626 powerpc/perf: fix preempt count underflow in fsl_emb_pmu_del

In the Linux kernel, the following vulnerability has been resolved: powerpc/perf: fix preempt count underflow in fslembpmudel fslembpmudel unconditionally calls putcpuvarcpuhwevents at the 'out:' label, but only calls the matching getcpuvar after the 'i hw.idx is negative the function jumps to...