CVE-2026-23013
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 1cd3b407977c3ab1d2ddc26cb7113e7fb1509cd1 < aa05a8371ae4a452df623f7202c72409d3c50e40 | affected |
| Linux | Linux | 1cd3b407977c3ab1d2ddc26cb7113e7fb1509cd1 < aa4c066229b05fc3d3c5f42693d25b1828533b6e | affected |
| Linux | Linux | 1cd3b407977c3ab1d2ddc26cb7113e7fb1509cd1 < f93fc5d12d69012788f82151bee55fce937e1432 | affected |
| Linux | Linux | 6.9 | affected |
| Linux | Linux | 0 < 6.9 | unaffected |
| Linux | Linux | 6.12.67 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.7 <= 6.18.* | unaffected |
| Linux | Linux | 6.19 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/aa05a8371ae4a452df623f7202c72409d3c50e40
- https://git.kernel.org/stable/c/aa4c066229b05fc3d3c5f42693d25b1828533b6e
- https://git.kernel.org/stable/c/f93fc5d12d69012788f82151bee55fce937e1432
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