CVE-2026-93144

CVE-2026-93144 affects the Linux kernel BPF subsystem, specifically the check_ptr_to_btf_access() path. The root cause is that program-type btf_struct_access callbacks can validate writes before the default BTF access path rejects non-read accesses, bypassing the read-only policy enforced for unt...

CVE-2026-93144 bpf: Reject writes through untrusted BTF pointers

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject writes through untrusted BTF pointers checkptrtobtfaccess lets program-type btfstructaccess callbacks validate writes before the default BTF access path rejects non-read accesses. That bypasses the read-only policy fo...