bpf stackmap

The bpf stackmap tag on WindowsForum.com covers discussions about the Linux kernel's BPF stackmap mechanism, particularly security vulnerabilities and fixes. A recent thread details CVE-2025-68378, a boundary-check omission in BPF stackmap handling that could lead to a slab out-of-bounds write, detected by KASAN and reported via Syzkaller. The vulnerability poses availability and integrity risks, with upstream patches available. Topics include kernel updates, mitigations for delayed patching, and the role of BPF maintainers in addressing such flaws. This tag is relevant for Linux system administrators, security researchers, and developers working with BPF or kernel hardening.