diff options
| author | Sami Tolvanen <samitolvanen@google.com> | 2022-09-08 14:54:55 -0700 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2022-09-26 10:13:14 -0700 |
| commit | 607289a7cd7a3ca42b8a6877fcb6072e6eb20c34 (patch) | |
| tree | 67aa63c5bf9418fbbf81f5caa372231a27dbc6b6 /drivers/misc/lkdtm | |
| parent | 5dbbb3eaa2a784342f3206b77381b516181d089c (diff) | |
treewide: Drop function_nocfi
With -fsanitize=kcfi, we no longer need function_nocfi() as
the compiler won't change function references to point to a
jump table. Remove all implementations and uses of the macro.
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Tested-by: Kees Cook <keescook@chromium.org>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20220908215504.3686827-14-samitolvanen@google.com
Diffstat (limited to 'drivers/misc/lkdtm')
| -rw-r--r-- | drivers/misc/lkdtm/usercopy.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/misc/lkdtm/usercopy.c b/drivers/misc/lkdtm/usercopy.c index 6215ec995cd3..67db57249a34 100644 --- a/drivers/misc/lkdtm/usercopy.c +++ b/drivers/misc/lkdtm/usercopy.c @@ -330,7 +330,7 @@ static void lkdtm_USERCOPY_KERNEL(void) pr_info("attempting bad copy_to_user from kernel text: %px\n", vm_mmap); - if (copy_to_user((void __user *)user_addr, function_nocfi(vm_mmap), + if (copy_to_user((void __user *)user_addr, vm_mmap, unconst + PAGE_SIZE)) { pr_warn("copy_to_user failed, but lacked Oops\n"); goto free_user; |