Answer in brief
CVE-2026-72283 records a Unknown severity vulnerability in KVM: x86: Nullify irqfd->producer if updating IRTE for bypass fails. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=77e1b8332d1d7aa786f7515e9bd4055def6a1e06 <d1379888cc4230bac647ec24ab83306afbd03e88 || >=77e1b8332d1d7aa786f7515e9bd4055def6a1e06 <d5560b6569cd05ba72c6b33427fbabc6ec46b8cf || >=77e1b8332d1d7aa786f7515e9bd4055def6a1e06 <ed446e8aa894883c08892cfee69782fdf8f6c3ca | d1379888cc4230bac647ec24ab83306afbd03e88, d5560b6569cd05ba72c6b33427fbabc6ec46b8cf, ed446e8aa894883c08892cfee69782fdf8f6c3ca |
| Linux/Linuxgeneric | 6.17 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
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]
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-72283 records a Unknown severity vulnerability in KVM: x86: Nullify irqfd->producer if updating IRTE for bypass fails. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=77e1b8332d1d7aa786f7515e9bd4055def6a1e06 <d1379888cc4230bac647ec24ab83306afbd03e88 || >=77e1b8332d1d7aa786f7515e9bd4055def6a1e06 <d5560b6569cd05ba72c6b33427fbabc6ec46b8cf || >=77e1b8332d1d7aa786f7515e9bd4055def6a1e06 <ed446e8aa894883c08892cfee69782fdf8f6c3ca | d1379888cc4230bac647ec24ab83306afbd03e88, d5560b6569cd05ba72c6b33427fbabc6ec46b8cf, ed446e8aa894883c08892cfee69782fdf8f6c3ca |
| Linux/Linuxgeneric | 6.17 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
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]
Quoted source text, attributed separately from HOL analysis.