Use-after-free in Linux kernel - CVE-2026-23013

Vulnerability identifier: #VU122014

CSH Severity: Low

CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-23013

CWE-ID: CWE-416

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the octep_vf_request_irqs() function in drivers/net/ethernet/marvell/octeon_ep_vf/octep_vf_main.c. A local user can escalate privileges on the system.

Linux kernel
Debian Linux
Ubuntu
linux (Debian package)
linux-azure-fde-6.17 (Ubuntu package)
linux-gcp-6.17 (Ubuntu package)
linux-oracle-6.17 (Ubuntu package)
linux-azure-6.17 (Ubuntu package)
linux-oem-6.17 (Ubuntu package)

Install update from vendor's repository.

linux (Debian package) - update to 6.12.69-1
linux-azure-fde-6.17 (Ubuntu package) - update to 6.17.0-1018.18~24.04.1
linux-gcp-6.17 (Ubuntu package) - addressed in versions 6.17.0-1018.20~24.04.1, 6.17.0-1021.24~24.04.1
linux-oracle-6.17 (Ubuntu package) - addressed in versions 6.17.0-1019.19~24.04.3, 6.17.0-1019.19~24.04.3+1
linux-azure-6.17 (Ubuntu package) - update to 6.17.0-1021.21~24.04.1
linux-oem-6.17 (Ubuntu package) - update to 6.17.0-1030.30

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

• Use-after-free in Linux kernel marvell octeon_ep_vf driver
• Debian update for linux
• Ubuntu update for linux-gcp-6.17
• Ubuntu update for linux-oem-6.17
• Ubuntu update for linux-azure-fde-6.17
• Ubuntu update for linux-azure-6.17
• Ubuntu update for linux-oracle-6.17