BPF helpers that take an ARG_PTR_TO_UNINIT_MEM must ensure that all of the memory is set, including beyond the end of the string. Signed-off-by: Barret Rhoden <brho@xxxxxxxxxx> --- kernel/bpf/helpers.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/bpf/helpers.c b/kernel/bpf/helpers.c index 6be16db9f188..b6a5cda5bb59 100644 --- a/kernel/bpf/helpers.c +++ b/kernel/bpf/helpers.c @@ -258,7 +258,7 @@ BPF_CALL_2(bpf_get_current_comm, char *, buf, u32, size) goto err_clear; /* Verifier guarantees that size > 0 */ - strscpy(buf, task->comm, size); + strscpy_pad(buf, task->comm, size); return 0; err_clear: memset(buf, 0, size); -- 2.40.0.577.gac1e443424-goog
