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| author | Eduard Zingerman <eddyz87@gmail.com> | 2026-09-04 17:05:56 -0700 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2026-09-04 18:17:30 -0700 |
| commit | 506ada89629ec7059b96ecfb0dc7d33ece0103ca (patch) | |
| tree | 0b07297409b68d2333fb4f0eae7f3b072eb68d4c /scripts/livepatch/Makefile | |
| download | linux-stable-506ada89629ec7059b96ecfb0dc7d33ece0103ca.tar.gz linux-stable-506ada89629ec7059b96ecfb0dc7d33ece0103ca.zip | |
bpf: mark a NULL kfunc argument precisegrafted
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 <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20260904-register-is-null-precise-fixes-v1-5-0f5a360ff15d@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'scripts/livepatch/Makefile')
| -rw-r--r-- | scripts/livepatch/Makefile | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/scripts/livepatch/Makefile b/scripts/livepatch/Makefile new file mode 100644 index 000000000..17b590213 --- /dev/null +++ b/scripts/livepatch/Makefile @@ -0,0 +1,20 @@ +# SPDX-License-Identifier: GPL-2.0 +# Standalone Makefile for developer tooling (not part of kbuild). + +SHELLCHECK := $(shell which shellcheck 2> /dev/null) + +SRCS := \ + klp-build + +.DEFAULT_GOAL := help +.PHONY: help +help: + @echo " check - Run shellcheck on $(SRCS)" + @echo " help - Show this help message" + +.PHONY: check +check: +ifndef SHELLCHECK + $(error shellcheck is not installed. Please install it to run checks) +endif + @$(SHELLCHECK) $(SHELLCHECK_OPTIONS) $(SRCS) |