Comment 9 for bug 1858615

dmidocode.c directly accesses memory and assumes it's an x86 without any checking that the arch is x86.. Randomly scanning arbitrary hunks of memory on non-x86 as root will lead to all sorts of woe:

memory_scan:
        if (!(opt.flags & FLAG_QUIET))
                printf("Scanning %s for entry point.\n", opt.devmem);
        /* Fallback to memory scan (x86, x86_64) */
        if ((buf = mem_chunk(0xF0000, 0x10000, opt.devmem)) == NULL)
        {
                ret = 1;
                goto exit_free;
        }

It probably needs wrapping with:

#if defined(__x86_64__) || defined(__x86_64) || \
    defined(__i386__) || defined(__i386)

...

#endif

Anyhow, I don't think this is a kernel specific issue. I can trigger this with various kernels - we just don't protect users with CAP_SYS_ADMIN rights doing crazy probing on /dev/mem.