| Message ID | 20231213134027.155327-3-alexghiti@rivosinc.com (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | 3b5c14361d615d2f7d4d0230c4c862e937ed536a |
| Headers | show |
| Series | Fix WX mappings in the linear mapping after module unloading | expand |
diff --git a/arch/riscv/mm/pageattr.c b/arch/riscv/mm/pageattr.c index 96cbda683936..01398fee5cf8 100644 --- a/arch/riscv/mm/pageattr.c +++ b/arch/riscv/mm/pageattr.c @@ -383,7 +383,7 @@ int set_direct_map_invalid_noflush(struct page *page) int set_direct_map_default_noflush(struct page *page) { return __set_memory((unsigned long)page_address(page), 1, - PAGE_KERNEL, __pgprot(0)); + PAGE_KERNEL, __pgprot(_PAGE_EXEC)); } #ifdef CONFIG_DEBUG_PAGEALLOC
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: 395a21ff859c ("riscv: add ARCH_HAS_SET_DIRECT_MAP support") Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com> --- arch/riscv/mm/pageattr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)