DEBIAN-CVE-2024-27437
Record from OSV · Published April 5, 2024
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.
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| linux | Debian:12 | 6.1.85-1 |
| linux | Debian:13 | 6.7.12-1 |
| linux | Debian:14 | 6.7.12-1 |
Risk scores
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Debian:12 | linux | 6.1.82-1, 0, 6.1.27-1 |
| Debian:13 | linux | 0 |
| Debian:14 | linux | 0 |
Timeline
- Apr 5, 2024 CVE Published
- Oct 15, 2026 CVE Updated
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