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riscv: Fix set_direct_map_default_noflush() to reset _PAGE_EXEC
[ Upstream commitb8b2711336
] 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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@ -378,7 +378,7 @@ int set_direct_map_invalid_noflush(struct page *page)
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int set_direct_map_default_noflush(struct page *page)
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{
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return __set_memory((unsigned long)page_address(page), 1,
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PAGE_KERNEL, __pgprot(0));
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PAGE_KERNEL, __pgprot(_PAGE_EXEC));
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}
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#ifdef CONFIG_DEBUG_PAGEALLOC
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