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CVE-2026-64291

UNKNOWN · CVSS N/A

Kaynak: NVD + CISA KEV + EPSS · Yayınlanma: 2026-07-25T10:17:09.837 · Çekilme zamanı: 2026-07-25T12:05:41.200809+00:00

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CVE
CVE-2026-64291
Severity
UNKNOWN
CVSS
N/A
EPSS
Yok
Linux

Orijinal NVD Açıklaması

In the Linux kernel, the following vulnerability has been resolved: iommufd: Set veventq_depth upper bound iommufd_veventq_alloc() accepts any !0 veventq_depth from userspace, with an upper bound at U32_MAX. This leaves a vulnerability where userspace can allocate excessively large queues to exhaust kernel memory reserves. Cap the veventq_depth (maximum number of entries) to 1 << 19, matching the maximum number of entries in the SMMUv3 EVTQ (the largest use case today).