Copyright © 2012 Red Hat, Inc. All rights reserved. Low 2026-05-27T00:00:00 kernel: arm64/gcs: Fix error handling in arch_set_shadow_stack_status() 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CWE-390

A flaw was found in the Linux kernel. Improper error handling in the `arch_set_shadow_stack_status()` function, specifically related to `alloc_gcs()`, could lead to the use of an invalid Global Context Structure (GCS) address. This issue may allow a local attacker to cause system instability or a denial of service.

Red Hat Enterprise Linux 10 Fix deferred 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-2026-45876 https://nvd.nist.gov/vuln/detail/CVE-2026-45876 https://lore.kernel.org/linux-cve-announce/2026052714-CVE-2026-45876-4460@gregkh/T