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| author | Hoeun Ryu <hoeun.ryu@gmail.com> | 2017-02-12 07:13:33 +0100 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2017-02-17 01:34:59 +0100 |
| commit | 4fbfeb8bd684d564bddeff1e3723d3d9f99aa5de (patch) | |
| tree | acd71c212dec8ad0f3117b33c5c37ff9e68b1183 /lib/iommu-helper.c | |
| parent | Linux 4.10-rc2 (diff) | |
| download | linux-4fbfeb8bd684d564bddeff1e3723d3d9f99aa5de.tar.xz linux-4fbfeb8bd684d564bddeff1e3723d3d9f99aa5de.zip | |
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 'lib/iommu-helper.c')
0 files changed, 0 insertions, 0 deletions