Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
CVE-2026-23013
Linux Linux — net: octeon_ep_vf: fix free_irq dev_id mismatch in IRQ rollback
AV AC PR UI S C I A CVSS EPSS %ile KEV
L L L N U H H H 7.8 .0018 6.5 —
AFFECTED
Product Versions Fixed
Linux 1cd3b407977c3ab1d2ddc26cb7113e7fb1509cd1 – —
Linux 6.9 – 6.12.67
TIMELINE
Jan 13 Reserved by Linux
Jan 25 Published (CNA: Linux)
Oct 16 RESCORED — CVE-2026-23013 (Linux). CVSS 7 → 7.8 (NVD).
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().
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| January 13, 2026 | Reserved | Reserved by Linux |
| January 25, 2026 | Published | Published (CNA: Linux) |
| October 16, 2026 | RESCORED | RESCORED — CVE-2026-23013 (Linux). CVSS 7 → 7.8 (NVD). |
Affected
Affected products and packages — 2 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| Linux | Linux | — | 1cd3b407977c3ab1d2ddc26cb7113e7fb1509cd1 | — |
| Linux | Linux | — | 6.9 | 6.12.67 |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-23013 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Monday, October 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.