PT-2026-52321 · Linux · Linux
Published
2026-06-25
·
Updated
2026-06-25
·
CVE-2026-53226
None
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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().
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Related Identifiers
Affected Products
Linux