HIGHCVE-2026-23013Published Modified CNA Linux
CVE-2026-23013: net: octeon_ep_vf: fix free_irq dev_id mismatch in IRQ rollback
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().
Metrics
- CVSS v3.1
- 7.0
- Severity
- HIGH
- Fixed in
- 0
- Affected Products
- 2
Fix available
06.12.676.18.76.19aa05a8371ae4a452df623f7202c72409d3c50e40aa4c066229b05fc3d3c5f42693d25b1828533b6ef93fc5d12d69012788f82151bee55fce937e1432
Affected packages
- Linux / Linux< aa05a8371ae4a452df623f7202c72409d3c50e40 (from 1cd3b407977c3ab1d2ddc26cb7113e7fb1509cd1) · < aa4c066229b05fc3d3c5f42693d25b1828533b6e (from 1cd3b407977c3ab1d2ddc26cb7113e7fb1509cd1) · < f93fc5d12d69012788f82151bee55fce937e1432 (from 1cd3b407977c3ab1d2ddc26cb7113e7fb1509cd1)
- Linux / Linux6.9Fixed in 0, 6.12.67, 6.18.7, 6.19
CVSS Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H