CVE-2026-23013
Full vulnerability record from the local CVENow database.
Description
In the Linux kernel, the following vulnerability has been resolved: net: octeon_ep_vf: fix free_irq dev_id mismatch in IRQ rollback octep_vf_request_irqs() requests MSI-X queue IRQs with dev_id set to ioq_vector. If request_irq() fails part-way, the rollback loop calls free_irq() with dev_id set to 'oct', which does not match the original dev_id and may leave the irqaction registered. This can keep IRQ handlers alive while ioq_vector is later freed during unwind/teardown, leading to a use-after-free or crash when an interrupt fires. Fix the error path to free IRQs with the same ioq_vector dev_id used during request_irq().
Severity
HIGH
CVSS score
7.8
(v3.1)
Vulnerability status
Modified
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2026-01-25 15:15:56.173000
Last modified
2026-10-19 19:17:32.763000
View original CVE JSON
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: octeon_ep_vf: fix free_irq dev_id mismatch in IRQ rollback\n\noctep_vf_request_irqs() requests MSI-X queue IRQs with dev_id set to\nioq_vector. If request_irq() fails part-way, the rollback loop calls\nfree_irq() with dev_id set to 'oct', which does not match the original\ndev_id and may leave the irqaction registered.\n\nThis can keep IRQ handlers alive while ioq_vector is later freed during\nunwind/teardown, leading to a use-after-free or crash when an interrupt\nfires.\n\nFix the error path to free IRQs with the same ioq_vector dev_id used\nduring request_irq()."
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"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nnet: octeon_ep_vf: corregir la falta de coincidencia de dev_id de free_irq en la reversión de IRQ\n\noctep_vf_request_irqs() solicita IRQs de cola MSI-X con dev_id establecido en ioq_vector. Si request_irq() falla a mitad de camino, el bucle de reversión llama a free_irq() con dev_id establecido en 'oct', lo que no coincide con el dev_id original y puede dejar la irqaction registrada.\n\nEsto puede mantener los manejadores de IRQ activos mientras ioq_vector es liberado posteriormente durante el desenrollado/desmontaje, lo que lleva a un uso después de liberación o un fallo cuando se dispara una interrupción.\n\nCorregir la ruta de error para liberar IRQs con el mismo dev_id de ioq_vector utilizado durante request_irq()."
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