Memory leak in Linux kernel - CVE-2026-98607

Vulnerability identifier: #VU156913

CSH Severity: Low

CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-98607

CWE-ID: CWE-401

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to exhaust resources and potentially cause a denial of service.

The vulnerability exists due to improper release of object references in virtio_gpu_resource_create_blob_ioctl() when UUID assignment or GEM handle creation fails. A local user can invoke resource-creation operations that encounter these error paths to leak virtio_gpu_object allocations, resource identifiers, and host-side resources, potentially causing resource exhaustion and a denial of service.

Linux kernel
Ubuntu
linux-nvidia-tegra (Ubuntu package)
linux-nvidia-tegra-igx (Ubuntu package)
linux-nvidia-tegra-5.15 (Ubuntu package)
linux (Ubuntu package)
linux-gcp (Ubuntu package)
linux-oracle (Ubuntu package)
linux-aws (Ubuntu package)
linux-ibm (Ubuntu package)
linux-hwe-7.0 (Ubuntu package)
linux-oem-7.0 (Ubuntu package)

Install security update from vendor's repository.

Linux kernel - update to 7.0 rc3
linux-nvidia-tegra (Ubuntu package) - update to 5.15.0-1070.72
linux-nvidia-tegra-igx (Ubuntu package) - update to 5.15.0-1059.59
linux-nvidia-tegra-5.15 (Ubuntu package) - update to 5.15.0-1070.72~20.04.1
linux (Ubuntu package) - update to 7.0.0-42.42
linux-gcp (Ubuntu package) - update to 7.0.0-1016.18
linux-oracle (Ubuntu package) - update to 7.0.0-1015.16
linux-aws (Ubuntu package) - update to 7.0.0-1016.17
linux-ibm (Ubuntu package) - update to 7.0.0-1017.17
linux-hwe-7.0 (Ubuntu package) - update to 7.0.0-42.42~24.04.1
linux-oem-7.0 (Ubuntu package) - update to 7.0.0-1017.17

• https://git.kernel.org/stable/c/02df4e24dc4c0bf5b0425a6acabc5201d7f04fc2
• https://git.kernel.org/stable/c/0455867bbd95ffa9d9db0a1c6dda500f8126232c
• https://git.kernel.org/stable/c/24b6d5c7641412c9ebef0d4c8b888d49a0e6b880
• https://git.kernel.org/stable/c/73ea38a89b923fa08047885a0845d1cd89261ead
• https://git.kernel.org/stable/c/81c6769e069d703154087377d1749af2f1b74e49
• https://git.kernel.org/stable/c/88c60c06a2a5244f5dd32ec098e633add114890f
• https://git.kernel.org/stable/c/eea473532a286cd1b13cddbec5c645989f43a3aa

• Memory leak in Linux kernel drm virtio driver
• Ubuntu update for linux-oem-7.0
• Ubuntu update for linux, linux-aws, linux-gcp and more
• Ubuntu update for linux-nvidia-tegra, linux-nvidia-tegra-5.15, linux-nvidia-tegra-igx
• Ubuntu update for linux, linux-aws, linux-aws-5.15 and more