A flaw was found in the Linux kernel's `drm/amdgpu` module. A local user could exploit this vulnerability by providing excessively large input values to the `amdgpu_userq_signal_ioctl` function. This lack of proper input validation can lead to an Out-Of-Memory (OOM) condition, causing a Denial of Service (DoS) on the affected system.

Red Hat Enterprise Linux 10 Not affected kernel Red Hat Enterprise Linux 6 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel Red Hat Enterprise Linux 7 Not affected kernel-rt Red Hat Enterprise Linux 8 Not affected kernel Red Hat Enterprise Linux 8 Not affected kernel-rt Red Hat Enterprise Linux 9 Not affected kernel Red Hat Enterprise Linux 9 Not affected kernel-rt https://www.cve.org/CVERecord?id=CVE-2026-43400 https://nvd.nist.gov/vuln/detail/CVE-2026-43400 https://lore.kernel.org/linux-cve-announce/2026050839-CVE-2026-43400-3a71@gregkh/T