[PATCH 0/3] PTI x86-32 Updates and Fixes

Joerg Roedel
2018-07-25T15:48:21Z

Hi,

here are three patches on-top of tip/x86/pti to update the
vmallo_fault() fix and also with another important fix.

The first two patches remove the WARN_ON_ONCE(in_nmi) from
the vmalloc_fault() function and revert the previous fix, as
discussed at the last patch-set.

The third patch is an important fix for a silent memory
corruption issue found by the trinity fuzzer, which did take
a while to track down. But I found it and with the fix the
fuzzer already runs for couple of hours now and the VM is
still alive.

Regards,

Joerg

Joerg Roedel (3):
x86/mm: Remove in_nmi() warning from vmalloc_fault()
Revert "perf/core: Make sure the ring-buffer is mapped in all
page-tables"
x86/kexec: Allocate 8k PGDs for PTI

arch/x86/kernel/machine_kexec_32.c | 5 +++--
arch/x86/mm/fault.c | 2 --
kernel/events/ring_buffer.c | 16 ----------------
3 files changed, 3 insertions(+), 20 deletions(-)

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2.7.4