From 506ada89629ec7059b96ecfb0dc7d33ece0103ca Mon Sep 17 00:00:00 2001 From: Eduard Zingerman Date: Fri, 4 Sep 2026 17:05:56 -0700 Subject: bpf: mark a NULL kfunc argument precise check_kfunc_arg() allows bpf_register_is_null() for nullable arguments w/o marking the underlying scalar register precise. Hence a checkpoint created on such a path would prune against arbitrary scalar value. Fixes: 3bda08b63670 ("bpf: Allow NULL buffers in bpf_dynptr_slice(_rw)") Signed-off-by: Eduard Zingerman Link: https://lore.kernel.org/r/20260904-register-is-null-precise-fixes-v1-5-0f5a360ff15d@gmail.com Signed-off-by: Alexei Starovoitov --- drivers/hv/mshv_trace.c | 9 +++++++++ 1 file changed, 9 insertions(+) create mode 100644 drivers/hv/mshv_trace.c (limited to 'drivers/hv/mshv_trace.c') diff --git a/drivers/hv/mshv_trace.c b/drivers/hv/mshv_trace.c new file mode 100644 index 000000000..0936b2f95 --- /dev/null +++ b/drivers/hv/mshv_trace.c @@ -0,0 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2026, Microsoft Corporation. + * + * Tracepoint definitions for mshv driver. + */ + +#define CREATE_TRACE_POINTS +#include "mshv_trace.h" -- cgit v1.3.1