CVE-2026-23013 - net: octeon_ep_vf: fix free_irq dev_id mismatch in IRQ rollback

CVE-2026-23013 - net: octeon_ep_vf: fix free_irq dev_id mismatch in IRQ rollback

https://cvefeed.io/rssfeed/latest.atom / Sun, 01/25/2026 - 16:59
CVE ID : CVE-2026-23013
Published : Jan. 25, 2026, 3:15 p.m. | 29 minutes ago
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: 0.0 | NA
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