Vulnerability details
CVE-2026-23013
Linux Linux
net: octeon_ep_vf: fix free_irq dev_id mismatch in IRQ rollback
CVSS 3.1
7.0High
Official 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().
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.0High | 3.1 | CVEProject cvelistV5 (CNA) (Linux) | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Linux | Linux | 6.9 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 1cd3b407977c3ab1d2ddc26cb7113e7fb1509cd1 ≤ v < aa05a8371ae4a452df623f7202c72409d3c50e40 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 1cd3b407977c3ab1d2ddc26cb7113e7fb1509cd1 ≤ v < aa4c066229b05fc3d3c5f42693d25b1828533b6e | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 1cd3b407977c3ab1d2ddc26cb7113e7fb1509cd1 ≤ v < f93fc5d12d69012788f82151bee55fce937e1432 | CVEProject cvelistV5 (CNA) |
References and advisories
3
Kolun on Telegram @kolunsec
Exploited CVEs, key news and a daily digest
Alerts for this product's next CVEsFollow the product to get new vulnerabilities on Telegram.
Details
- Published
- 2026-01-25
- Last updated
- 2026-10-19
- State
- Published
- Assigner (CNA)
- Linux
Exploit prediction (EPSS)
0.19%
Probability of exploitation in 30 days
9.2%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-416Use After Free