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CVE-2026-23013

Severity CVSS v4.0:
Pending analysis
Type:
CWE-416 Use After Free
Publication date:
25/01/2026
Last modified:
03/04/2026

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> net: octeon_ep_vf: fix free_irq dev_id mismatch in IRQ rollback<br /> <br /> octep_vf_request_irqs() requests MSI-X queue IRQs with dev_id set to<br /> ioq_vector. If request_irq() fails part-way, the rollback loop calls<br /> free_irq() with dev_id set to &amp;#39;oct&amp;#39;, which does not match the original<br /> dev_id and may leave the irqaction registered.<br /> <br /> This can keep IRQ handlers alive while ioq_vector is later freed during<br /> unwind/teardown, leading to a use-after-free or crash when an interrupt<br /> fires.<br /> <br /> Fix the error path to free IRQs with the same ioq_vector dev_id used<br /> during request_irq().

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.00 HIGH
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
7.00
Severity 3.x
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.9.1 (including) 6.12.67 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.13 (including) 6.18.7 (excluding)
cpe:2.3:o:linux:linux_kernel:6.9:-:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc7:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.19:rc8:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools