diff options
| author | Ingo Molnar <mingo@kernel.org> | 2025-08-05 11:15:34 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2025-08-05 11:15:34 +0200 |
| commit | a53d0cf7f1cb3182ad533ff5cacfa5fd29c419ad (patch) | |
| tree | 59bd9bad63a1460a6079162fca98ea47f5a81679 /kernel/cfi.c | |
| parent | ed845c363d8c93eeaad4ce48bb7d5f81b6a75b61 (diff) | |
| parent | 352af6a011d586ff042db4b2d1f7421875eb8a14 (diff) | |
Merge commit 'linus' into core/bugs, to resolve conflicts
Resolve conflicts with this commit that was developed in parallel
during the merge window:
8c8efa93db68 ("x86/bug: Add ARCH_WARN_ASM macro for BUG/WARN asm code sharing with Rust")
Conflicts:
arch/riscv/include/asm/bug.h
arch/x86/include/asm/bug.h
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/cfi.c')
| -rw-r--r-- | kernel/cfi.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/kernel/cfi.c b/kernel/cfi.c index 422fa4f958ae..4dad04ead06c 100644 --- a/kernel/cfi.c +++ b/kernel/cfi.c @@ -5,6 +5,8 @@ * Copyright (C) 2022 Google LLC */ +#include <linux/bpf.h> +#include <linux/cfi_types.h> #include <linux/cfi.h> bool cfi_warn __ro_after_init = IS_ENABLED(CONFIG_CFI_PERMISSIVE); @@ -27,6 +29,19 @@ enum bug_trap_type report_cfi_failure(struct pt_regs *regs, unsigned long addr, return BUG_TRAP_TYPE_BUG; } +/* + * Declare two non-existent functions with types that match bpf_func_t and + * bpf_callback_t pointers, and use DEFINE_CFI_TYPE to define type hash + * variables for each function type. The cfi_bpf_* variables are used by + * arch-specific BPF JIT implementations to ensure indirectly callable JIT + * code has matching CFI type hashes. + */ +extern typeof(*(bpf_func_t)0) __bpf_prog_runX; +DEFINE_CFI_TYPE(cfi_bpf_hash, __bpf_prog_runX); + +extern typeof(*(bpf_callback_t)0) __bpf_callback_fn; +DEFINE_CFI_TYPE(cfi_bpf_subprog_hash, __bpf_callback_fn); + #ifdef CONFIG_ARCH_USES_CFI_TRAPS static inline unsigned long trap_address(s32 *p) { |