> >> +#ifdef CONFIG_SECCOMP_FILTER
> >> + case BPF_S_ANC_SECCOMP_LD_W:
> >> + if (K == offsetof(struct seccomp_data,
> >> arch)) {
> >> + int arch = syscall_get_arch(current,
> >> NULL);
> >> +
> >> + EMIT1_off32(0xb8, arch); /* mov
> >> arch,%eax */
> >> + break;
> >> + }
> >> + func = (u8 *)seccomp_bpf_load;
> >> + t_offset = func - (image + addrs[i]);
> >> + EMIT1_off32(0xbf, K); /* mov imm32,%edi */
> >> + EMIT1_off32(0xe8, t_offset); /* call
> >> seccomp_bpf_load */
> >> + break;
> >> +#endif
> >
> > This seems seriously wrong to me.
>
> Can you elaborate?
The 'call seccomp_bpf_load' needs a pc-relative offset,
I assume that is what EMIT1_off32() generates.
The other two instructions want an absolute 32 bit value...
David
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