High 7.0Published Jan 25, 2026

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

Updated under an hour ago (Oct 26, 2026, 2:50 PM ET)

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Exploited in the last 30 days

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().

CVSS: 7.0 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-416
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Modified
Record last updated: Oct 19, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 1cd3b407977c3ab1d2ddc26cb7113e7fb1509cd1 before aa05a8371ae4a452df623f7202c72409d3c50e40; from 1cd3b407977c3ab1d2ddc26cb7113e7fb1509cd1 before aa4c066229b05fc3d3c5f42693d25b1828533b6e; from 1cd3b407977c3ab1d2ddc26cb7113e7fb1509cd1 before f93fc5d12d69012788f82151bee55fce937e1432	CNA record
linux linux_kernel linux:linux_kernel	from 6.9.1 before 6.12.67; from 6.13 before 6.18.7; 6.9; 6.19; 6.19; 6.19; 6.19; 6.19; and 3 more ranges	NVD

References

References

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

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.