Re: [PATCH v2 1/2] tools/bpf/bpftool: Reset vmlinux BTF after map commands

[Jiayuan Chen]

On 6/22/26 11:12 AM, Yichong Chen wrote:
> get_map_kv_btf() caches the vmlinux BTF object when a map uses
> btf_vmlinux_value_type_id. map dump released that object when the
> command completed, but left the global pointer stale.
>
> The same cached object can also be returned to print_key_value(), which
> freed it directly. That leaves btf_vmlinux dangling before the command
> cleanup path runs.
>
> Use free_map_kv_btf() for per-entry cleanup, and reset the cached
> btf_vmlinux pointer when the map command releases the object. This keeps
> batch mode from reusing a freed BTF object.
>
> Signed-off-by: Yichong Chen <chenyichong@xxxxxxxxxxxxx>

You added a Fixes tag to another patch. Should we add one here as well?