In the Linux kernel, the following vulnerability has been resolved: bpf: Switch CONFIG_CFI_CLANG to CONFIG_CFI This was renamed in commit 23ef9d439769 ("kcfi: Rename CONFIG_CFI_CLANG to CONFIG_CFI") as it is now a compiler-agnostic option. Using the wrong name results in the code getting compiled out. Meaning the CFI failures for btf_dtor_kfunc_t would still trigger.

A flaw was found in the Linux kernel. The issue arises from an incorrect configuration option for Control-Flow Integrity (CFI), a security mechanism designed to prevent certain types of attacks. Due to a naming change, the CFI code was not properly compiled, leading to its intended protections not being active. This could allow attackers to bypass security safeguards that CFI is meant to provide.

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-2026-53099 https://nvd.nist.gov/vuln/detail/CVE-2026-53099 https://lore.kernel.org/linux-cve-announce/2026062411-CVE-2026-53099-5d79@gregkh/T