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 --- include/asm-generic/module.h | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 include/asm-generic/module.h (limited to 'include/asm-generic/module.h') diff --git a/include/asm-generic/module.h b/include/asm-generic/module.h new file mode 100644 index 000000000..a8622501b --- /dev/null +++ b/include/asm-generic/module.h @@ -0,0 +1,41 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __ASM_GENERIC_MODULE_H +#define __ASM_GENERIC_MODULE_H + +/* + * Many architectures just need a simple module + * loader without arch specific data. + */ +#ifndef CONFIG_HAVE_MOD_ARCH_SPECIFIC +struct mod_arch_specific +{ +}; +#endif + +#ifdef CONFIG_64BIT +#define Elf_Shdr Elf64_Shdr +#define Elf_Phdr Elf64_Phdr +#define Elf_Sym Elf64_Sym +#define Elf_Dyn Elf64_Dyn +#define Elf_Ehdr Elf64_Ehdr +#define Elf_Addr Elf64_Addr +#define Elf_Rel Elf64_Rel +#define Elf_Rela Elf64_Rela +#define ELF_R_TYPE(X) ELF64_R_TYPE(X) +#define ELF_R_SYM(X) ELF64_R_SYM(X) + +#else /* CONFIG_64BIT */ + +#define Elf_Shdr Elf32_Shdr +#define Elf_Phdr Elf32_Phdr +#define Elf_Sym Elf32_Sym +#define Elf_Dyn Elf32_Dyn +#define Elf_Ehdr Elf32_Ehdr +#define Elf_Addr Elf32_Addr +#define Elf_Rel Elf32_Rel +#define Elf_Rela Elf32_Rela +#define ELF_R_TYPE(X) ELF32_R_TYPE(X) +#define ELF_R_SYM(X) ELF32_R_SYM(X) +#endif + +#endif /* __ASM_GENERIC_MODULE_H */ -- cgit v1.3.1