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 <[email protected]> Cc: [email protected] Signed-off-by: Russell King <[email protected]>
redbrain17 · Feb 16, 2017 · 9e34404 · 9e34404
1 parent 32b1436
commit 9e34404
Showing 1 changed file with 1 addition and 1 deletion.
diff --git 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]