[1/6] syscalls: use uaccess_kernel in addr_limit_user_check
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Message ID 20200710135706.537715-2-hch@lst.de
State In Next
Commit 9b637f02017c812fb9e2533124a729be526a8bfd
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  • [1/6] syscalls: use uaccess_kernel in addr_limit_user_check
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Commit Message

Christoph Hellwig July 10, 2020, 1:57 p.m. UTC 
Use the uaccess_kernel helper instead of duplicating it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 include/linux/syscalls.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch
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diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index b951a87da9877c..e933a43d4a69ac 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -263,7 +263,7 @@  static inline void addr_limit_user_check(void)
 		return;
 #endif
 
-	if (CHECK_DATA_CORRUPTION(!segment_eq(get_fs(), USER_DS),
+	if (CHECK_DATA_CORRUPTION(uaccess_kernel(),
 				  "Invalid address limit on user-mode return"))
 		force_sig(SIGKILL);