CVE-2026-90123

In the Linux kernel, the following vulnerability has been resolved: irqchip/ast2700-intc: Avoid allocating in the irq_domain activate() callback The interrupt core calls the irq_domain_activate() callback from __setup_irq() with desc->lock held and interrupts disabled. Both aspeed_intc1_irq_domain_activate() and aspeed_intc0_resolve_route() test a compatible string with fwnode_device_is_compatible(). fwnode_device_is_compatible() invokes fwnode_property_match_string(), which allocates with GFP_KERNEL. That's obviously not possible with interrupts disabled and a raw spinlock held. Both call sites are only ever handed OF nodes, so use of_device_is_compatible() instead: it walks the property in place and does not allocate.

Package Linux Kernel
Published 2026-09-17
Last modified 2026-09-17
Patch available
Yes

Affected versions

Linux kernel versions 7.2 and later are affected. Fixed in 7.2.6, 7.3-rc1 and their respective stable series.

Affected from
≥ 7.2
Fixed in
✓ 7.2.6 7.2.x ✓ 7.3-rc1

References

2 total

Frequently asked questions

  • What is CVE-2026-90123?

    CVE-2026-90123 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 7.2 onward and has been patched in 7.2.6 and 7.3-rc1. CVE-2026-90123 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • Is there a patch available for CVE-2026-90123?

    Yes. CVE-2026-90123 has been patched. Fixed versions include 7.2.6 and 7.3-rc1. If you are running Linux kernel 7.2 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2026-90123 actively exploited?

    No. CVE-2026-90123 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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