From b12f031043247b80999bf5e03b8cded3b0b40f8d Mon Sep 17 00:00:00 2001 From: Kumar Kartikeya Dwivedi Date: Mon, 22 Nov 2021 20:17:41 +0530 Subject: bpf: Fix bpf_check_mod_kfunc_call for built-in modules When module registering its set is built-in, THIS_MODULE will be NULL, hence we cannot return early in case owner is NULL. Fixes: 14f267d95fe4 ("bpf: btf: Introduce helpers for dynamic BTF set registration") Signed-off-by: Kumar Kartikeya Dwivedi Signed-off-by: Andrii Nakryiko Acked-by: Song Liu Link: https://lore.kernel.org/bpf/20211122144742.477787-3-memxor@gmail.com --- kernel/bpf/btf.c | 2 -- 1 file changed, 2 deletions(-) (limited to 'kernel') diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c index ea3df9867cec..9bdb03767db5 100644 --- a/kernel/bpf/btf.c +++ b/kernel/bpf/btf.c @@ -6371,8 +6371,6 @@ bool bpf_check_mod_kfunc_call(struct kfunc_btf_id_list *klist, u32 kfunc_id, { struct kfunc_btf_id_set *s; - if (!owner) - return false; mutex_lock(&klist->mutex); list_for_each_entry(s, &klist->list, list) { if (s->owner == owner && btf_id_set_contains(s->set, kfunc_id)) { -- cgit v1.2.3