riscv: Fix set_direct_map_default_noflush() to reset _PAGE_EXEC

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[ Upstream commit b8b2711336 ]

When resetting the linear mapping permissions, we must make sure that we
clear the X bit so that do not end up with WX mappings (since we set
PAGE_KERNEL).

Fixes: 395a21ff85 ("riscv: add ARCH_HAS_SET_DIRECT_MAP support")
Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Link: https://lore.kernel.org/r/20231213134027.155327-3-alexghiti@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Alexandre Ghiti 2023-12-13 14:40:27 +01:00 • committed by Greg Kroah-Hartman

parent c757f93ffc

commit 42736f2447

1 changed files with 1 additions and 1 deletions

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arch/riscv/mm/pageattr.c

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