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| author | Eduard Zingerman <eddyz87@gmail.com> | 2026-09-04 01:33:23 -0700 |
|---|---|---|
| committer | Kumar Kartikeya Dwivedi <memxor@gmail.com> | 2026-09-04 12:58:04 +0200 |
| commit | 836b2fe544a5e9b5ce116622cb36fba33838c6fd (patch) | |
| tree | 95e38e4aaa0a6a78e373148b3d0af4aa2ab3d371 /scripts/Makefile.context-analysis | |
| download | linux-stable-836b2fe544a5e9b5ce116622cb36fba33838c6fd.tar.gz linux-stable-836b2fe544a5e9b5ce116622cb36fba33838c6fd.zip | |
selftests/bpf: Check that JMP32 pointer vs zero jumps are not predictedgrafted
Add jmp32_ptr_vs_zero_jne: the fall-through of the 32-bit compare, which
the verifier used to skip, contains an out of bounds map value access,
hence w/o the previous patch the program is accepted. See previous patch
for detailed description.
Reported-by: Nicholas Carlini <npc@anthropic.com>
Suggested-by: Nicholas Carlini <npc@anthropic.com>
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/bpf/20260904083325.2083493-6-eddyz87@gmail.com
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Diffstat (limited to 'scripts/Makefile.context-analysis')
| -rw-r--r-- | scripts/Makefile.context-analysis | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/scripts/Makefile.context-analysis b/scripts/Makefile.context-analysis new file mode 100644 index 000000000..cd3bb49d3 --- /dev/null +++ b/scripts/Makefile.context-analysis @@ -0,0 +1,11 @@ +# SPDX-License-Identifier: GPL-2.0 + +context-analysis-cflags := -DWARN_CONTEXT_ANALYSIS \ + -fexperimental-late-parse-attributes -Wthread-safety \ + -Wthread-safety-pointer -Wthread-safety-beta + +ifndef CONFIG_WARN_CONTEXT_ANALYSIS_ALL +context-analysis-cflags += --warning-suppression-mappings=$(srctree)/scripts/context-analysis-suppression.txt +endif + +export CFLAGS_CONTEXT_ANALYSIS := $(context-analysis-cflags) |