CVE-2026-72283
Last modified
CVE-2026-72283 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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. EPSS estimates a 0.22% chance of exploitation in the next 30 days.
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]
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 77e1b8332d1d7aa786f7515e9bd4055def6a1e06, < d1379888cc4230bac647ec24ab83306afbd03e88; >= 77e1b8332d1d7aa786f7515e9bd4055def6a1e06, < d5560b6569cd05ba72c6b33427fbabc6ec46b8cf; >= 77e1b8332d1d7aa786f7515e9bd4055def6a1e06, < ed446e8aa894883c08892cfee69782fdf8f6c3ca |
| Linux | Linux | 6.17 |
References
Timeline
- Published
- Last Modified
- Status
- Received
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