Improper Check or Handling of Exceptional Conditions in Linux kernel - CVE-2026-90130

Vulnerability identifier: #VU151354

CSH Severity: Low

CVSS v4: 5.7 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-90130

CWE-ID: CWE-703

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 improper handling of an initialization failure in the vDPA simulator cleanup path when creating a vDPA simulator and worker creation fails. A local user can trigger vDPA simulator initialization under this failure condition to cause a denial of service.

Linux kernel
Debian Linux
Ubuntu
linux (Ubuntu package)
linux-aws (Ubuntu package)
linux-gcp (Ubuntu package)
linux-oracle (Ubuntu package)
linux-ibm (Ubuntu package)
linux-hwe-7.0 (Ubuntu package)
linux-oem-7.0 (Ubuntu package)
linux (Debian package)

Install security update from vendor's repository.

linux (Ubuntu package) - update to 7.0.0-42.42
linux-aws (Ubuntu package) - update to 7.0.0-1016.17
linux-gcp (Ubuntu package) - update to 7.0.0-1016.18
linux-oracle (Ubuntu package) - update to 7.0.0-1015.16
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
linux (Debian package) - update to 6.12.111-1

• https://git.kernel.org/stable/c/05ddc94afb69e36df59e88cfa9e5c7bf9d10cfd0
• https://git.kernel.org/stable/c/68b726b3a01fb02a68843781b17d05ef3d759987
• https://git.kernel.org/stable/c/bd670e5dfd2b01fd9692f61fa1456434c54026a4
• https://git.kernel.org/stable/c/ca6f3fa599cb764518df595368b743f856fdb516
• https://git.kernel.org/stable/c/feafa109f031ed111f7f968e447c13985db498e0

• Improper Check or Handling of Exceptional Conditions in Linux kernel vdpa vdpa_sim driver
• Debian update for linux
• Ubuntu update for linux-oem-7.0
• Ubuntu update for linux, linux-aws, linux-gcp and more