Re: [PATCH bpf-next v3 1/4] x86/ibt: factor out cfi and fineibt offset

[Peter Zijlstra]

On Mon, Mar 03, 2025 at 02:53:42PM +0800, Menglong Dong wrote:
> index c71b575bf229..ad050d09cb2b 100644
> --- a/arch/x86/kernel/alternative.c
> +++ b/arch/x86/kernel/alternative.c
> @@ -908,7 +908,7 @@ void __init_or_module noinline apply_seal_endbr(s32 *start, s32 *end, struct mod
>  
>  		poison_endbr(addr, wr_addr, true);
>  		if (IS_ENABLED(CONFIG_FINEIBT))
> -			poison_cfi(addr - 16, wr_addr - 16);
> +			poison_cfi(addr, wr_addr);
>  	}
>  }

If you're touching this code, please use tip/x86/core or tip/master.