Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Nullify irqfd->producer if updating IRTE for bypass fails Nullify irqfd->producer if updating the IRTE for bypass fails, as leaving a dangling pointer will result in a use-after-free if the irqfd is reachable through KVM's routing, but the producer is freed separately. E.g. for VFIO PCI, the producer is embedded in struct "vfio_pci_irq_ctx" and freed when the vector is disabled, which can happen independent of routing updates. [sean: drop PPC change, massage changelog]
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 77e1b8332d1d7aa786f7515e9bd4055def6a1e06 before d1379888cc4230bac647ec24ab83306afbd03e88; affected 77e1b8332d1d7aa786f7515e9bd4055def6a1e06 before d5560b6569cd05ba72c6b33427fbabc6ec46b8cf; affected 77e1b8332d1d7aa786f7515e9bd4055def6a1e06 before ed446e8aa894883c08892cfee69782fdf8f6c3ca |
| Linux / Linux | affected 6.17; unaffected 0 before 6.17; unaffected 6.18.40 through 6.18.*; unaffected 7.1.5 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.