CVE-2026-98712
KVM: arm64: vgic: Take a refcount on IRQs referenced by last_lr_irq
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 6.20, 7.2.10
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic: Take a refcount on IRQs referenced by last_lr_irq Referencing the last interrupt inserted in an LR is rather fragile, as this interrupt can vanish if a concurrently unmapped LPI. Solve this by bumping up the refcount on the interrupt when populating last_lr_irq, and drop it at vgic_prune_ap_list() time, when LPIs are being reclaimed.
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
From 6da5e537f5afe091658e846da1949d7e557d2ade · fixed in 8b25393d16a5ca8df907bd7ee1ff2e9d85678b3c; From 6da5e537f5afe091658e846da1949d7e557d2ade · fixed in 19bc5d79ece613f242b5ec03921a3b465321bfed; From 6.19.9 · fixed in 6.20
- Linux Linux
7.0
- KernelLinux
From 7.0.0 · fixed in 7.2.10