[PATCH 0/3 4.19-stable] Sync mappings in vmalloc/ioremap areas

From: Joerg Roedel jroedel@suse.de

Backport commits from upstream to fix a data corruption issue that gets exposed when using PTI on x86-32.

Please consider them for inclusion into stable-4.19.

Joerg Roedel (3): x86/mm: Check for pfn instead of page in vmalloc_sync_one() x86/mm: Sync also unmappings in vmalloc_sync_all() mm/vmalloc: Sync unmappings in __purge_vmap_area_lazy()

arch/x86/mm/fault.c | 15 ++++++--------- mm/vmalloc.c | 9 +++++++++ 2 files changed, 15 insertions(+), 9 deletions(-)