CVE-2026-72295
LoongArch KVM irqfd index validation flaw allows guest-induced host memory corruption
Is CVE-2026-72295 being exploited?
Not confirmed. CVE-2026-72295 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.16% probability of exploitation in the next 30 days.
How severe is CVE-2026-72295?
CVE-2026-72295 is rated High with a CVSS score of 8.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-72295?
Yes. A fix has been recorded for CVE-2026-72295. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-72295 affect?
CVE-2026-72295 affects Linux kernel (LoongArch) with KVM, Hosts running KVM on LoongArch kernels. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-72295?
Apply vendor kernel updates; restrict untrusted guests; monitor kernel logs.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Malicious guest can provide an out-of-range irqchip index causing OOB kernel memory access, enabling host crash or possible privilege escalation/VM escape.
Patch when possible
- affected>= 1928254c5ccb7bdffd7f0334e1ce250e9ce4de94 and < 199b570d7fca1aa70e596f10a6276997becffb6d
- affected>= 1928254c5ccb7bdffd7f0334e1ce250e9ce4de94 and < 8b3e188d19e4ffe916780aeb7ddad9d6457b8bcc
- affected>= 1928254c5ccb7bdffd7f0334e1ce250e9ce4de94 and < 3474037904c20ff915e3ebab0ab5c1e41bbe549e
- affected6.13
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.