[PATCH 0/2] x86/mm: More KASAN per-CPU CEA mapping bug fixes

From: Sean Christopherson
Date: Fri Nov 04 2022 - 18:01:15 EST


Two more bug fixes from the gift that keeps on giving. Both of these were
found by inspection, and both are lightly tested. I'm pretty confident
that patch 01 fixes a real bug, somewhat less so about patch 02, though
given the other issues I debugged I don't see anything that prevents the
DS buffers from exploding.

Sean Christopherson (2):
x86/mm: Recompute physical address for every page of per-CPU CEA
mapping
x86/mm: Populate KASAN shadow for per-CPU DS buffers in CPU entry area

arch/x86/mm/cpu_entry_area.c | 10 ++++------
1 file changed, 4 insertions(+), 6 deletions(-)


base-commit: 3301badde43dee7c2a013fbd6479c258366519da
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2.38.1.431.g37b22c650d-goog