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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 /tools/perf/jvmti/Build | |
| 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 'tools/perf/jvmti/Build')
| -rw-r--r-- | tools/perf/jvmti/Build | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/tools/perf/jvmti/Build b/tools/perf/jvmti/Build new file mode 100644 index 000000000..202cadaaf --- /dev/null +++ b/tools/perf/jvmti/Build @@ -0,0 +1,21 @@ +jvmti-y += libjvmti.o +jvmti-y += jvmti_agent.o + +# For strlcpy +jvmti-y += libstring.o libctype.o + +CFLAGS_jvmti = -fPIC -DPIC -I$(JDIR)/include -I$(JDIR)/include/linux +CFLAGS_REMOVE_jvmti = -Wmissing-declarations +CFLAGS_REMOVE_jvmti += -Wstrict-prototypes +CFLAGS_REMOVE_jvmti += -Wextra +CFLAGS_REMOVE_jvmti += -Wwrite-strings + +CFLAGS_libstring.o += -Wno-unused-parameter -DETC_PERFCONFIG="BUILD_STR($(ETC_PERFCONFIG_SQ))" + +$(OUTPUT)jvmti/libstring.o: ../lib/string.c FORCE + $(call rule_mkdir) + $(call if_changed_dep,cc_o_c) + +$(OUTPUT)jvmti/libctype.o: ../lib/ctype.c FORCE + $(call rule_mkdir) + $(call if_changed_dep,cc_o_c) |