Description
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 products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
77e1b8332d1d7aa786f7515e9bd4055def6a1e06 to < d1379888cc4230bac647ec24ab83306afbd03e88affected77e1b8332d1d7aa786f7515e9bd4055def6a1e06 to < d5560b6569cd05ba72c6b33427fbabc6ec46b8cfaffected77e1b8332d1d7aa786f7515e9bd4055def6a1e06 to < ed446e8aa894883c08892cfee69782fdf8f6c3caaffected
Linux Linux
Default version status: affected
6.17affected0 to < 6.17unaffected6.18.40 to ≤ 6.18.*unaffected7.1.5 to ≤ 7.1.*unaffected7.2 to ≤ *unaffected