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Improper Resource Locking The advisory has been revoked - it doesn't affect any version of package perf6.18-debuginfo  (opens in a new tab)

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EPSS
0.34% (26th percentile)

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  • Snyk IDSNYK-AMZN2023-PERF618DEBUGINFO-16741807
  • published18 May 2026
  • disclosed6 May 2026
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Introduced: 6 May 2026

CVE-2026-43253  (opens in a new tab)
CWE-413  (opens in a new tab)

Amendment

The Amazon-Linux security team deemed this advisory irrelevant for Amazon-Linux:2023.

NVD Description

Note: Versions mentioned in the description apply only to the upstream perf6.18-debuginfo package and not the perf6.18-debuginfo package as distributed by Amazon-Linux.

In the Linux kernel, the following vulnerability has been resolved:

iommu/amd: move wait_on_sem() out of spinlock

With iommu.strict=1, the existing completion wait path can cause soft lockups under stressed environment, as wait_on_sem() busy-waits under the spinlock with interrupts disabled.

Move the completion wait in iommu_completion_wait() out of the spinlock. wait_on_sem() only polls the hardware-updated cmd_sem and does not require iommu->lock, so holding the lock during the busy wait unnecessarily increases contention and extends the time with interrupts disabled.