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 --- rust/helpers/maple_tree.c | 9 +++++++++ 1 file changed, 9 insertions(+) create mode 100644 rust/helpers/maple_tree.c (limited to 'rust/helpers/maple_tree.c') diff --git a/rust/helpers/maple_tree.c b/rust/helpers/maple_tree.c new file mode 100644 index 000000000..5586486a7 --- /dev/null +++ b/rust/helpers/maple_tree.c @@ -0,0 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include + +__rust_helper void rust_helper_mt_init_flags(struct maple_tree *mt, + unsigned int flags) +{ + mt_init_flags(mt, flags); +} -- cgit v1.3.1