| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.7 158/184] sh64: failing __get_user() should zero | Date | Thu, 22 Sep 2016 19:41:32 +0200 |
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4.7-stable review patch. If anyone has any objections, please let me know.
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From: Al Viro <viro@zeniv.linux.org.uk>
commit c6852389228df9fb3067f94f3b651de2a7921b36 upstream.
It could be done in exception-handling bits in __get_user_b() et.al., but the surgery involved would take more knowledge of sh64 details than I have or _want_ to have.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- arch/sh/include/asm/uaccess_64.h | 1 + 1 file changed, 1 insertion(+)
--- a/arch/sh/include/asm/uaccess_64.h +++ b/arch/sh/include/asm/uaccess_64.h @@ -24,6 +24,7 @@ #define __get_user_size(x,ptr,size,retval) \ do { \ retval = 0; \ + x = 0; \ switch (size) { \ case 1: \ retval = __get_user_asm_b((void *)&x, \
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