Memory leak in Linux kernel - CVE-2026-98608

Vulnerability identifier: #VU156914

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-2026-98608

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 failure to release an owned object reference in virtio_gpu_resource_create_ioctl() when handling a drm_gem_handle_create() failure. A local user can exercise this error path to leak the GPU object, its pages and scatter-gather table, the resource identifier, and the host-side resource, potentially exhausting resources and causing 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/1586ee6107acab3b14510ac6af939f1253269df8
• https://git.kernel.org/stable/c/477bc3068fc3777b9d8ffd79e265b0dfdf2d3a6b
• https://git.kernel.org/stable/c/574ae9fa5fd3658bee23cb544fe5a0d1d750016a
• https://git.kernel.org/stable/c/749d8bb964b3414ef967d5ec80f2f1b5b3a510d9
• https://git.kernel.org/stable/c/77dee8e9106d62bf4f51b646c801f51f8ee77339
• https://git.kernel.org/stable/c/83c899104496677068fbbd2e42f28fd625f9cd85
• https://git.kernel.org/stable/c/b516446a25bf365cfffe3d7884ea6637f7f70862
• https://git.kernel.org/stable/c/d33d5ef8225538f76e4598c09e2074834667bb8d

• 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