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Subject[PATCH 0/3 4.19-stable] Sync mappings in vmalloc/ioremap areas
From: Joerg Roedel <>

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(-)


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