Improper input validation in Linux kernel - CVE-2026-80541

Vulnerability identifier: #VU145950

CSH Severity: Low

CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-80541

CWE-ID: CWE-20

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 input validation in amdgpu_gem_create_ioctl() when processing GEM create requests with invalid domain combinations. A local user can submit a specially crafted domain combination to cause a denial of service.

The issue is triggered when CPU, GTT, or VRAM domains are combined with DOORBELL, GDS, GWS, or OA domains, causing amdgpu_bo_placement_from_domain() to exceed AMDGPU_BO_MAX_PLACEMENTS and hit BUG_ON().

Linux kernel
openEuler
kernel
bpftool
bpftool-debuginfo
kernel-debuginfo
kernel-debugsource
kernel-devel
kernel-headers
kernel-source
kernel-tools
kernel-tools-debuginfo
kernel-tools-devel
perf
perf-debuginfo
python3-perf
python3-perf-debuginfo

Install security update from vendor's repository.

Linux kernel - update to 7.0 rc3
kernel - update to 5.10.0-334.0.0.235
bpftool - update to 5.10.0-334.0.0.235
bpftool-debuginfo - update to 5.10.0-334.0.0.235
kernel-debuginfo - update to 5.10.0-334.0.0.235
kernel-debugsource - update to 5.10.0-334.0.0.235
kernel-devel - update to 5.10.0-334.0.0.235
kernel-headers - update to 5.10.0-334.0.0.235
kernel-source - update to 5.10.0-334.0.0.235
kernel-tools - update to 5.10.0-334.0.0.235
kernel-tools-debuginfo - update to 5.10.0-334.0.0.235
kernel-tools-devel - update to 5.10.0-334.0.0.235
perf - update to 5.10.0-334.0.0.235
perf-debuginfo - update to 5.10.0-334.0.0.235
python3-perf - update to 5.10.0-334.0.0.235
python3-perf-debuginfo - update to 5.10.0-334.0.0.235

• https://git.kernel.org/stable/c/220aa2589d7321fb68d2e8597862711b5f22ae0b
• https://git.kernel.org/stable/c/493355096e397f9217b41c8574ed2784c7351443
• https://git.kernel.org/stable/c/584e3d47736fe2e7184ef3fc16b00b41485f96c6
• https://git.kernel.org/stable/c/5c73485af7ad9c3ae592db3481f370bc07705391
• https://git.kernel.org/stable/c/5e9d136ad74df4edec67e502ce267597064d8f86
• https://git.kernel.org/stable/c/66133fc05c3af002f45de8a71b833c026ccbfba6
• https://git.kernel.org/stable/c/80f0b53860d02577709d69a312a29ca674b9297c
• https://git.kernel.org/stable/c/ce5da474c3ddf7cccec5dce6aa4296297dd7caff

• Improper input validation in Linux kernel amd amdgpu driver
• openEuler 22.03 LTS SP4 update for kernel