CVE-2026-23013

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().

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

References

• https://git.kernel.org/stable/c/aa05a8371ae4a452df623f7202c72409d3c50e40 ↗
• https://git.kernel.org/stable/c/aa4c066229b05fc3d3c5f42693d25b1828533b6e ↗
• https://git.kernel.org/stable/c/f93fc5d12d69012788f82151bee55fce937e1432 ↗