diff options
| author | Matthew Wilcox <willy@infradead.org> | 2019-02-14 11:03:48 -0800 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2019-02-15 13:08:08 +1000 |
| commit | 69ef943dbc14b21987c79f8399ffea08f9a1b446 (patch) | |
| tree | 2e231c985a2670be1966b1f81c92004641ba3736 /lib/string.c | |
| parent | 7abbb35ba98ec52583b92898b2e37533f462d248 (diff) | |
drm: Use array_size() when creating leasedrm-fixes-2019-02-15-1
Passing an object_count of sufficient size will make
object_count * 4 wrap around to be very small, then a later function
will happily iterate off the end of the object_ids array. Using
array_size() will saturate at SIZE_MAX, the kmalloc() will fail and
we'll return an -ENOMEM to the norty userspace.
Fixes: 62884cd386b8 ("drm: Add four ioctls for managing drm mode object leases [v7]")
Signed-off-by: Matthew Wilcox <willy@infradead.org>
Acked-by: Kees Cook <keescook@chromium.org>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: <stable@vger.kernel.org> # v4.15+
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'lib/string.c')
0 files changed, 0 insertions, 0 deletions