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| author | Kees Cook <keescook@chromium.org> | 2017-02-16 01:44:37 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@armlinux.org.uk> | 2017-02-16 16:58:32 +0100 |
| commit | 9e3440481845b2ec22508f60837ee2cab2b6054f (patch) | |
| tree | df1c9d3ad0d5713060661901654e970e420ee7c6 | |
| parent | ARM: 8657/1: uaccess: consistently check object sizes (diff) | |
| download | linux-9e3440481845b2ec22508f60837ee2cab2b6054f.tar.xz linux-9e3440481845b2ec22508f60837ee2cab2b6054f.zip | |
ARM: 8658/1: uaccess: fix zeroing of 64-bit get_user()
The 64-bit get_user() wasn't clearing the high word due to a typo in the
error handler. The exception handler entry was already correct, though.
Noticed during recent usercopy test additions in lib/test_user_copy.c.
Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: stable@vger.kernel.org
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
| -rw-r--r-- | arch/arm/lib/getuser.S | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/lib/getuser.S b/arch/arm/lib/getuser.S index 8ecfd15c3a02..df73914e81c8 100644 --- a/arch/arm/lib/getuser.S +++ b/arch/arm/lib/getuser.S @@ -67,7 +67,7 @@ ENTRY(__get_user_4) ENDPROC(__get_user_4) ENTRY(__get_user_8) - check_uaccess r0, 8, r1, r2, __get_user_bad + check_uaccess r0, 8, r1, r2, __get_user_bad8 #ifdef CONFIG_THUMB2_KERNEL 5: TUSER(ldr) r2, [r0] 6: TUSER(ldr) r3, [r0, #4] |