On 4/14/19 11:59 AM, Thomas Gleixner wrote: > 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)); >
Yes, it fixed it. But there is another bug that I did not see before, but it was there: ---cut dmesg--- Freeing unused kernel image memory: 76K ------------[ cut here ]------------ x86/mm: Found insecure W+X mapping at address 0xffff9df500000000 WARNING: CPU: 1 PID: 1 at arch/x86/mm/dump_pagetables.c:262 note_page+0x2ae/0x650 Modules linked in: CPU: 1 PID: 1 Comm: swapper/0 Not tainted 5.0.7-300.fc30.x86_64 #1 Hardware name: Hewlett-Packard p6-2004es/2ABF, BIOS 7.16 03/23/2012 RIP: 0010:note_page+0x2ae/0x650 Code: 29 f0 48 c1 e8 0c 48 01 43 40 80 3d 54 15 2c 01 00 0f 85 07 ff ff ff 48 c7 c7 a0 d9 0a b7 c6 05 40 15 2c 01 01 e8 41 2d 06 00 <0f> 0b 4c 8b 4b 20 e9 e9 fe ff ff 48 29 d6 84 c9 0f 85 71 09 00 00 RSP: 0018:ffffb35940c63e18 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffffb35940c63ec8 RCX: 0000000000000050 RDX: 0000000000000001 RSI: 0000000000000092 RDI: 0000000000000247 RBP: 0000000000000161 R08: 0000000000000001 R09: 00000000000002ca R10: 000000000000e844 R11: 0000000000000003 R12: 0000000000000000 R13: 0000000000000005 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff9df737280000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2e235a8a88 CR3: 000000012b20e002 CR4: 00000000000606e0 Call Trace: ? vprintk_emit+0x1ec/0x250 ptdump_walk_pgd_level_core+0x46a/0x4c0 ? rest_init+0xaa/0xaa kernel_init+0x2c/0x106 ret_from_fork+0x1f/0x40 ---[ end trace 3288a26b9a3da7ee ]--- x86/mm: Checked W+X mappings: FAILED, 2175454 W+X pages found. rodata_test: all tests were successful Run /init as init process ---cut dmesg--- Thank you.
