CVE-2026-72283: Linux

Описание

Оригинално описание

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]

Засегнати продукти

• Linux Linux: 77e1b8332d1d7aa786f7515e9bd4055def6a1e06 преди d1379888cc4230bac647ec24ab83306afbd03e88; 77e1b8332d1d7aa786f7515e9bd4055def6a1e06 преди d5560b6569cd05ba72c6b33427fbabc6ec46b8cf; 77e1b8332d1d7aa786f7515e9bd4055def6a1e06 преди ed446e8aa894883c08892cfee69782fdf8f6c3ca
• Linux Linux: 6.17; преди 6.17; 6.18.40 до 6.18.*; 7.1.5 до 7.1.*; от 7.2 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99268
• CVE-2026-99266
• CVE-2026-99267

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-72283
• https://nvd.nist.gov/vuln/detail/CVE-2026-72283
• https://git.kernel.org/stable/c/d1379888cc4230bac647ec24ab83306afbd03e88
• https://git.kernel.org/stable/c/d5560b6569cd05ba72c6b33427fbabc6ec46b8cf
• https://git.kernel.org/stable/c/ed446e8aa894883c08892cfee69782fdf8f6c3ca