From 836b2fe544a5e9b5ce116622cb36fba33838c6fd Mon Sep 17 00:00:00 2001 From: Eduard Zingerman Date: Fri, 4 Sep 2026 01:33:23 -0700 Subject: selftests/bpf: Check that JMP32 pointer vs zero jumps are not predicted 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 Suggested-by: Nicholas Carlini Signed-off-by: Eduard Zingerman Link: https://lore.kernel.org/bpf/20260904083325.2083493-6-eddyz87@gmail.com Signed-off-by: Kumar Kartikeya Dwivedi --- tools/objtool/Build | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 tools/objtool/Build (limited to 'tools/objtool/Build') diff --git a/tools/objtool/Build b/tools/objtool/Build new file mode 100644 index 000000000..59f948628 --- /dev/null +++ b/tools/objtool/Build @@ -0,0 +1,39 @@ +objtool-y += arch/$(SRCARCH)/ + +objtool-y += weak.o + +objtool-y += check.o +objtool-y += special.o +objtool-y += builtin-check.o +objtool-y += elf.o +objtool-y += klp-symid.o +objtool-y += objtool.o + +objtool-$(BUILD_DISAS) += disas.o +objtool-$(BUILD_DISAS) += trace.o + +objtool-$(BUILD_ORC) += orc_gen.o orc_dump.o +objtool-$(BUILD_KLP) += builtin-klp.o klp-checksum.o klp-diff.o \ + klp-post-link.o klp-sympos.o + +objtool-y += libstring.o +objtool-y += libctype.o +objtool-y += str_error_r.o +objtool-y += librbtree.o +objtool-y += signal.o + +$(OUTPUT)libstring.o: ../lib/string.c FORCE + $(call rule_mkdir) + $(call if_changed_dep,cc_o_c) + +$(OUTPUT)libctype.o: ../lib/ctype.c FORCE + $(call rule_mkdir) + $(call if_changed_dep,cc_o_c) + +$(OUTPUT)str_error_r.o: ../lib/str_error_r.c FORCE + $(call rule_mkdir) + $(call if_changed_dep,cc_o_c) + +$(OUTPUT)librbtree.o: ../lib/rbtree.c FORCE + $(call rule_mkdir) + $(call if_changed_dep,cc_o_c) -- cgit v1.3.1