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 --- arch/arm64/Kbuild | 13 +++++++++++++ 1 file changed, 13 insertions(+) create mode 100644 arch/arm64/Kbuild (limited to 'arch/arm64/Kbuild') diff --git a/arch/arm64/Kbuild b/arch/arm64/Kbuild new file mode 100644 index 000000000..d876bc0e5 --- /dev/null +++ b/arch/arm64/Kbuild @@ -0,0 +1,13 @@ +# SPDX-License-Identifier: GPL-2.0-only + +# Branch profiling isn't noinstr-safe +subdir-ccflags-$(CONFIG_TRACE_BRANCH_PROFILING) += -DDISABLE_BRANCH_PROFILING + +obj-y += kernel/ mm/ net/ +obj-$(CONFIG_KVM) += kvm/ +obj-$(CONFIG_XEN) += xen/ +obj-$(subst m,y,$(CONFIG_HYPERV)) += hyperv/ +obj-$(CONFIG_CRYPTO) += crypto/ + +# for cleaning +subdir- += boot -- cgit v1.3.1