Deadlock in Linux kernel - CVE-2026-93098

Vulnerability identifier: #VU150921

CSH Severity: Low

CVSS v4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-93098

CWE-ID: CWE-833

Exploitation vector: Local access

Exploit availability: No public exploit available

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

The vulnerability exists due to a deadlock in GLINK endpoint destruction when detaching an rpmsg driver. A local privileged user can trigger driver detachment to cause a denial of service.

Linux kernel
Debian Linux
Ubuntu
linux-nvidia-tegra-igx (Ubuntu package)
linux-nvidia-tegra (Ubuntu package)
linux-nvidia-tegra-5.15 (Ubuntu package)
linux-azure-fde (Ubuntu package)
linux (Ubuntu package)
linux-oracle (Ubuntu package)
linux-gcp (Ubuntu package)
linux-aws (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-nvidia-tegra-igx (Ubuntu package) - update to 5.15.0-1059.59
linux-nvidia-tegra (Ubuntu package) - update to 5.15.0-1070.72
linux-nvidia-tegra-5.15 (Ubuntu package) - update to 5.15.0-1070.72~20.04.1
linux-azure-fde (Ubuntu package) - update to 5.15.0-1124.133
linux (Ubuntu package) - update to 7.0.0-42.42
linux-oracle (Ubuntu package) - update to 7.0.0-1015.16
linux-gcp (Ubuntu package) - update to 7.0.0-1016.18
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
linux (Debian package) - update to 6.12.111-1

• https://git.kernel.org/stable/c/48f55b90f0d713e477e26b85d7327d9592d016f9
• https://git.kernel.org/stable/c/5a5a48e788e02fd8a8eb7188ce440572d6c12418
• https://git.kernel.org/stable/c/73092c2292aa65515671e54abbcda2166d3827ed
• https://git.kernel.org/stable/c/8597f669a5268e0dcf243e2b2d6ca00370117057
• https://git.kernel.org/stable/c/bbc236357876d35a624030e5c50eedbc380be98e
• https://git.kernel.org/stable/c/cbcdf96e1c87bc07055d04264018ded1f3bafffb
• https://git.kernel.org/stable/c/e559626bee8a6632aafc08eedcdb4bf26ca245c5
• https://git.kernel.org/stable/c/ecad679e2b92c419cc22cc8f257cd457d5192647

• Deadlock in Linux kernel rpmsg driver
• Debian update for linux
• Ubuntu update for linux-azure-fde
• 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