CVE-2026-0665
Qemu-kvm: heap off-by-one in kvm xen physdevop_map_pirq
Summary
Qemu-kvm: heap off-by-one in kvm xen physdevop_map_pirq
Original description
The description as published by the source.
An off-by-one error was found in QEMU's KVM Xen guest support. A malicious guest could use this flaw to trigger out-of-bounds heap accesses in the QEMU process via the emulated Xen physdev hypercall interface, leading to a denial of service or potential memory corruption.
Fix status by distribution
Fixed packages published by each distribution for this CVE
- BellSoft Alpaquita BELL-CVE-2026-0665 qemu Fixed in: 10.0.9-r0
- Debian DEBIAN-CVE-2026-0665 qemu Fixed in: 1:10.0.8+ds-0+deb13u1
References
- advisory access.redhat.com
- advisory github.com
- advisory nvd.nist.gov
- package gitlab.com
- report bugzilla.redhat.com
- web access.redhat.com