In the Linux kernel, the following vulnerability has been resolved: gpio: rockchip: fix generic IRQ chip leak on remove The driver allocates domain… (CVE-2026-53226)
A vulnerability in the Linux kernel's rockchip GPIO driver causes a resource leak of generic IRQ chips on driver removal. The driver allocates generic IRQ chips during probe but fails to free them properly on removal, leading to memory leaks and potential use-after-free conditions that can cause kernel crashes.
AI Analysis
Technical Summary
The Linux kernel rockchip GPIO driver allocates domain generic chips using irq_alloc_domain_generic_chips() during probe. However, when the driver is removed, these generic chips are not automatically freed because the IRQ domain flags lack IRQ_DOMAIN_FLAG_DESTROY_GC. This results in leaked generic chips and domain structures remaining on the global gc_list. Subsequent generic IRQ chip suspend, resume, or shutdown callbacks may access these freed resources, causing use-after-free and kernel crashes. The fix involves explicitly calling irq_domain_remove_generic_chips() before removing the IRQ domain in rockchip_gpio_remove().
Potential Impact
The vulnerability causes a resource leak and potential use-after-free in the kernel, which can lead to kernel crashes and denial of service. There is no indication of confidentiality or integrity impact, but availability is affected due to possible system instability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. The fix involves modifying the driver to explicitly free generic IRQ chips on removal by calling irq_domain_remove_generic_chips(). Until an official patch is available, users should monitor vendor advisories for updates.
In the Linux kernel, the following vulnerability has been resolved: gpio: rockchip: fix generic IRQ chip leak on remove The driver allocates domain… (CVE-2026-53226)
Description
A vulnerability in the Linux kernel's rockchip GPIO driver causes a resource leak of generic IRQ chips on driver removal. The driver allocates generic IRQ chips during probe but fails to free them properly on removal, leading to memory leaks and potential use-after-free conditions that can cause kernel crashes.
CVSS v3.1
Score 5.5medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Linux kernel rockchip GPIO driver allocates domain generic chips using irq_alloc_domain_generic_chips() during probe. However, when the driver is removed, these generic chips are not automatically freed because the IRQ domain flags lack IRQ_DOMAIN_FLAG_DESTROY_GC. This results in leaked generic chips and domain structures remaining on the global gc_list. Subsequent generic IRQ chip suspend, resume, or shutdown callbacks may access these freed resources, causing use-after-free and kernel crashes. The fix involves explicitly calling irq_domain_remove_generic_chips() before removing the IRQ domain in rockchip_gpio_remove().
Potential Impact
The vulnerability causes a resource leak and potential use-after-free in the kernel, which can lead to kernel crashes and denial of service. There is no indication of confidentiality or integrity impact, but availability is affected due to possible system instability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. The fix involves modifying the driver to explicitly free generic IRQ chips on removal by calling irq_domain_remove_generic_chips(). Until an official patch is available, users should monitor vendor advisories for updates.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-fw97-88cp-67m9
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-53226"]
- Ecosystems
- []
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.1
Threat ID: 6a46eca827e9c7971943a5fc
Added to database: 07/02/2026, 22:56:40 UTC
Last enriched: 07/18/2026, 19:30:00 UTC
Last updated: 07/31/2026, 19:24:47 UTC
Views: 7
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