CVE-2026-72283
Description
AI Translation Available
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]
https://git.kernel.org/stable/c/d1379888cc4230bac647ec24ab83306afbd03e88
https://git.kernel.org/stable/c/d5560b6569cd05ba72c6b33427fbabc6ec46b8cf
https://git.kernel.org/stable/c/ed446e8aa894883c08892cfee69782fdf8f6c3ca