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().
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 936ee2675eee1faca0dcdfa79165c7990422e0fc, < 6198123cac2ffd9d9a9d252dfa84ab81fb487ba3; >= 936ee2675eee1faca0dcdfa79165c7990422e0fc, < 50c7a6d2bf179588ba2daee97be93d19c96a94af; >= 936ee2675eee1faca0dcdfa79165c7990422e0fc, < bace7b99bfa555fe833aee8827b8004c43666d02; >= 936ee2675eee1faca0dcdfa79165c7990422e0fc, < 1f34ea5f6114011092d9a5c8b901ad6741144a1d; >= 936ee2675eee1faca0dcdfa79165c7990422e0fc, < 1c1e0fc88d6ef65bf15d517853251f75ab9d18c3 |
| Linux | Linux | 5.15 |
References
- https://git.kernel.org/stable/c/1c1e0fc88d6ef65bf15d517853251f75ab9d18c3Patch
- https://git.kernel.org/stable/c/1f34ea5f6114011092d9a5c8b901ad6741144a1dPatch
- https://git.kernel.org/stable/c/50c7a6d2bf179588ba2daee97be93d19c96a94af
- https://git.kernel.org/stable/c/6198123cac2ffd9d9a9d252dfa84ab81fb487ba3
- https://git.kernel.org/stable/c/bace7b99bfa555fe833aee8827b8004c43666d02Patch
Timeline
- Published
- Jun 25, 2026
- Last modified
- Oct 21, 2026
- NVD status
- Modified