From: Mircea Cirjaliu mcirjaliu@bitdefender.com
commit 301a33d51880619d0c5a581b5a48d3a5248fa84b upstream.
I assume this was obtained by copy/paste. Point it to bpf_map_peek_elem() instead of bpf_map_pop_elem(). In practice it may have been less likely hit when under JIT given shielded via 84430d4232c3 ("bpf, verifier: avoid retpoline for map push/pop/peek operation").
Fixes: f1a2e44a3aec ("bpf: add queue and stack maps") Signed-off-by: Mircea Cirjaliu mcirjaliu@bitdefender.com Signed-off-by: Daniel Borkmann daniel@iogearbox.net Cc: Mauricio Vasquez mauriciovasquezbernal@gmail.com Link: https://lore.kernel.org/bpf/AM7PR02MB6082663DFDCCE8DA7A6DD6B1BBA30@AM7PR02MB... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- kernel/bpf/helpers.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/kernel/bpf/helpers.c +++ b/kernel/bpf/helpers.c @@ -105,7 +105,7 @@ BPF_CALL_2(bpf_map_peek_elem, struct bpf }
const struct bpf_func_proto bpf_map_peek_elem_proto = { - .func = bpf_map_pop_elem, + .func = bpf_map_peek_elem, .gpl_only = false, .ret_type = RET_INTEGER, .arg1_type = ARG_CONST_MAP_PTR,