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CVE-2026-74568 Detail - National Institute of Standards and Technology (.gov)
CVE-2026-74568 Detail National Institute of Standards and Technology (.gov)
CVE-2026-74568 - KVM: arm64: vgic: Fix race between LPI release and re-registration
CVE ID : CVE-2026-74568 Published : Aug. 15, 2026, 1:18 p. m. • 7 hours, 48 minutes ago Description : In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic: Fix race between LPI release and re-registration Fix a potential race between decrementing an LPI's reference count and evicting that structure from the LPI xarray. LPI structures are maintained in the VGIC LPI xarray (dist-lpi_xa). When the reference count of an LPI structure drops to zero, vgic_release_lpi_locked() removes the structure from the xarray and frees it under the xarray lock. However, the release of an LPI can race with a concurrent LPI re-registration with the same INTID via vgic_add_lpi() on another CPU, since the reference count drop and the xarray eviction are not performed in a single atomic step. This can happen e. g.
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