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CVE-2024-53089: LoongArch: KVM: Mark hrtimer to expire in hard interrupt context

mediumCVSS 5.5CVE-2024-53089

CSIRTS triage

vendor: Linuxproduct: Linux KernelDenial of service
What
LoongArch KVM hrtimer is not marked to expire in hard interrupt context, causing potential scheduling issues.
Who is affected
LoongArch systems running KVM with timer-dependent workloads.
Urgency
Medium priority; improper interrupt context handling can cause timing anomalies and denial of service.
Action
Update Linux kernel to include the LoongArch KVM hrtimer context fix.

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Details

Source
Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity
medium — CVSS 5.5
Published
2026-08-06
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-53089

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2024-53089coverage & exploitation statusNVD · CVE.org

Recent advisories for LoongArch

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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