From: Mircea Cirjaliu <[email protected]>
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 <[email protected]>
Signed-off-by: Daniel Borkmann <[email protected]>
Cc: Mauricio Vasquez <[email protected]>
Link:
https://lore.kernel.org/bpf/am7pr02mb6082663dfdcce8da7a6dd6b1bb...@am7pr02mb6082.eurprd02.prod.outlook.com
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
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,
