From: Tobias Klauser <tklau...@distanz.ch>
[ Upstream commit 453828625731d0ba7218242ef6ec88f59408f368 ]
info->si_addr is of type void __user *, so it should be compared against
something from the same address space.
This fixes the following sparse error:
arch/x86/mm/mpx.c:296:27: error: incompatible types in comparison expression
(different address spaces)
Signed-off-by: Tobias Klauser <tklau...@distanz.ch>
Cc: Dave Hansen <dave.han...@linux.intel.com>
Cc: Linus Torvalds <torva...@linux-foundation.org>
Cc: Peter Zijlstra <pet...@infradead.org>
Cc: Thomas Gleixner <t...@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mi...@kernel.org>
Signed-off-by: Sasha Levin <alexander.le...@verizon.com>
---
arch/x86/mm/mpx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/mm/mpx.c b/arch/x86/mm/mpx.c
index e4f800999b32..3e7c489e1f55 100644
--- a/arch/x86/mm/mpx.c
+++ b/arch/x86/mm/mpx.c
@@ -293,7 +293,7 @@ siginfo_t *mpx_generate_siginfo(struct pt_regs *regs)
* We were not able to extract an address from the instruction,
* probably because there was something invalid in it.
*/
- if (info->si_addr == (void *)-1) {
+ if (info->si_addr == (void __user *)-1) {
err = -EINVAL;
goto err_out;
}
--
2.11.0
