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[8/9] riscv: module: Create module allocations without exec permissions

Message ID 20210330022551.58ce4ff4@xhacker (mailing list archive)
State Superseded
Headers show
Series riscv: improve self-protection | expand

Checks

Context Check Description
netdev/tree_selection success Not a local patch

Commit Message

Jisheng Zhang March 29, 2021, 6:25 p.m. UTC
From: Jisheng Zhang <jszhang@kernel.org>

The core code manages the executable permissions of code regions of
modules explicitly, it is not necessary to create the module vmalloc
regions with RWX permissions. Create them with RW- permissions instead.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
---
 arch/riscv/kernel/module.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/arch/riscv/kernel/module.c b/arch/riscv/kernel/module.c
index 104fba889cf7..8997b9dbcb3d 100644
--- a/arch/riscv/kernel/module.c
+++ b/arch/riscv/kernel/module.c
@@ -414,7 +414,7 @@  void *module_alloc(unsigned long size)
 {
 	return __vmalloc_node_range(size, 1, VMALLOC_MODULE_START,
 				    VMALLOC_END, GFP_KERNEL,
-				    PAGE_KERNEL_EXEC, 0, NUMA_NO_NODE,
+				    PAGE_KERNEL, 0, NUMA_NO_NODE,
 				    __builtin_return_address(0));
 }
 #endif