Missing Release of Resource after Effective Lifetime in Linux kernel - CVE-2026-63880

Vulnerability identifier: #VU138763

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-2026-63880

CWE-ID: CWE-772

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to cause a denial of service.

The vulnerability exists due to a lock leak in AMDGPU_GEM_OP_GET_MAPPING_INFO handling in amdgpu_gem_op_ioctl() when processing a crafted DRM_IOCTL_AMDGPU_GEM_OP request that triggers memory allocation failure. A local user can invoke the affected ioctl to cause a denial of service.

Exploitation is reachable by a process with access to /dev/dri/renderD* and affects the caller's GPU context on the same VM.

Linux kernel
Ubuntu
linux-ibm (Ubuntu package)
linux-azure (Ubuntu package)
linux-aws (Ubuntu package)
linux-nvidia (Ubuntu package)
linux-nvidia-bos (Ubuntu package)

Install security update from vendor's repository.

Linux kernel - update to 7.0 rc3
linux-ibm (Ubuntu package) - addressed in versions 7.0.0-1008.8, 7.0.0-1010.10
linux-azure (Ubuntu package) - addressed in versions 7.0.0-1009.9, 7.0.0-1010.10
linux-aws (Ubuntu package) - addressed in versions 7.0.0-1009.9, 7.0.0-1015.15
linux-nvidia (Ubuntu package) - addressed in versions 7.0.0-1016.16, 7.0.0-1016.16~24.04.1
linux-nvidia-bos (Ubuntu package) - update to 7.0.0-2016.16

• https://git.kernel.org/stable/c/1eb86334e391695d4a40743b114afc15df4dc506
• https://git.kernel.org/stable/c/2e7f55eb408c3f72ee1957a0d0ad11d8648a6379
• https://git.kernel.org/stable/c/8f643d534ffc6f1b6182e4f3acff8f04890504b9

• Missing Release of Resource after Effective Lifetime in Linux kernel amd amdgpu driver
• Ubuntu update for linux-ibm
• Ubuntu update for linux-azure
• Ubuntu update for linux-aws
• Ubuntu update for linux-nvidia-bos
• Ubuntu update for linux-nvidia