Messages in this thread Patch in this message | | | Date | Sun, 14 Apr 2019 11:59:30 +0200 (CEST) | From | Thomas Gleixner <> | Subject | Re: bug disabling NX (noexec=off) |
| |
On Sat, 13 Apr 2019, Xose Vazquez Perez wrote: > [ 0.000000] NX (Execute Disable) protection: disabled by kernel command line option > [ 0.000000] ------------[ cut here ]------------ > [ 0.000000] attempted to set unsupported pgprot: 8000000000000163 bits: 8000000000000000 supported: 7fffffffffffffff
Does the below patch fix it for you?
Thanks,
tglx
8<---------------- diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c index 0029604af8a4..dd73d5d74393 100644 --- a/arch/x86/mm/ioremap.c +++ b/arch/x86/mm/ioremap.c @@ -825,7 +825,7 @@ void __init __early_set_fixmap(enum fixed_addresses idx, pte = early_ioremap_pte(addr); /* Sanitize 'prot' against any unsupported bits: */ - pgprot_val(flags) &= __default_kernel_pte_mask; + pgprot_val(flags) &= __supported_pte_mask; if (pgprot_val(flags)) set_pte(pte, pfn_pte(phys >> PAGE_SHIFT, flags));
| |