DEBIAN-CVE-2024-27437
In the Linux kernel, the following vulnerability has been resolved: vfio/pci: Disable auto-enable of exclusive INTx IRQ Currently for devices requiring masking at the irqchip for INTx, ie. devices without DisINTx support, the IRQ is enabled in request_irq() and subsequently disabled as necessary to align with the masked status flag. This presents a window where the interrupt could fire between these events, resulting in the IRQ incrementing the disable depth twice. This would be unrecoverable for a user since the masked flag prevents nested enables through vfio. Instead, invert the logic using IRQF_NO_AUTOEN such that exclusive INTx is never auto-enabled, then unmask as required.
Risk Scores
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:12 | linux | 0, 6.1.82-1, 6.1.76-1 |
| Debian:13 | linux | 0, 0 |
| Debian:11 | linux | 5.10.140-1, 5.10.92-2, 5.10.127-1 |
| Debian:14 | linux | 0, 0 |
Timeline
- Apr 5, 2024 CVE Published
- Apr 28, 2026 CVE Updated