Improper handling of exceptional conditions in Linux kernel - CVE-2026-99007

Vulnerability identifier: #VU157494

CSH Severity: Low

CVSS v4: 2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-99007

CWE-ID: CWE-755

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to trigger a kernel warning and potentially disrupt framebuffer mode restoration.

The vulnerability exists due to improper handling of probe failures in the Linux kernel DRM framebuffer helper when framebuffer probing fails with an error other than -EAGAIN. A local user can trigger a subsequent framebuffer mode restoration, such as on process exit, to commit stale display configuration with a missing framebuffer, causing a kernel warning and potentially disrupting framebuffer mode restoration.

Linux kernel
SUSE Linux Micro
SUSE Linux Micro Extras
kernel-default
kernel-64kb
kernel-64kb-debugsource
kernel-64kb-devel
kernel-default-devel
kernel-syms
kernel-obs-build
kernel-obs-build-debugsource
kernel-default-debugsource
kernel-default-devel-debuginfo

Install security update from vendor's repository.

Linux kernel - update to 7.0 rc3
kernel-default - update to 6.4.0-159998.55.1
kernel-64kb - update to 6.4.0-159998.55.1
kernel-64kb-debugsource - update to 6.4.0-159998.55.1
kernel-64kb-devel - update to 6.4.0-159998.55.1
kernel-default-devel - update to 6.4.0-159998.55.1
kernel-syms - update to 6.4.0-159998.55.1
kernel-obs-build - update to 6.4.0-159998.55.1
kernel-obs-build-debugsource - update to 6.4.0-159998.55.1
kernel-default-debugsource - update to 6.4.0-159998.55.1
kernel-default-devel-debuginfo - update to 6.4.0-159998.55.1

• https://git.kernel.org/stable/c/3b303696f61461b3569019d7fcac6a646652b2b4
• https://git.kernel.org/stable/c/4a2006c675758f0c765b36fec6b49d17e89159cf
• https://git.kernel.org/stable/c/4e7b508c7c60dec7a86b7eb2a1b7e6d174afa457
• https://git.kernel.org/stable/c/755c94d178b7e972bb766199d34e4ba4f63a89eb
• https://git.kernel.org/stable/c/d510ed273854177f0a3ed330145858b2fe667f81

• Improper handling of exceptional conditions in Linux kernel gpu drm driver
• SUSE update for the Linux Kernel