Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 6da5e537f5afe091658e846da1949d7e557d2ade before 8b25393d16a5ca8df907bd7ee1ff2e9d85678b3c; affected 6da5e537f5afe091658e846da1949d7e557d2ade before 19bc5d79ece613f242b5ec03921a3b465321bfed; affected cd28ca4c27ed5929f61bbed8a967c20519facb88; affected 6.19.9 before 6.20 |
| Linux / Linux | affected 7.0; unaffected 0 before 7.0; unaffected 7.2.10 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.