diff options
| author | Hoeun Ryu <hoeun.ryu@gmail.com> | 2017-02-12 15:13:33 +0900 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2017-02-16 16:34:59 -0800 |
| commit | 4fbfeb8bd684d564bddeff1e3723d3d9f99aa5de (patch) | |
| tree | acd71c212dec8ad0f3117b33c5c37ff9e68b1183 /arch | |
| parent | 0c744ea4f77d72b3dcebb7a8f2684633ec79be88 (diff) | |
| download | linux-4fbfeb8bd684d564bddeff1e3723d3d9f99aa5de.tar.bz2 | |
usercopy: add testcases to check zeroing on failure
During usercopy the destination buffer will be zeroed if copy_from_user()
or get_user() fails. This patch adds testcases for it. The destination
buffer is set with non-zero value before illegal copy_from_user() or
get_user() is executed and the buffer is compared to zero after usercopy
is done.
Signed-off-by: Hoeun Ryu <hoeun.ryu@gmail.com>
[kees: clarified commit log, dropped second kmalloc]
Signed-off-by: Kees Cook <keescook@chromium.org>
Diffstat (limited to 'arch')
0 files changed, 0 insertions, 0 deletions