diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-03-20 17:22:58 +0100 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2020-03-20 21:05:22 +0100 |
| commit | 5c6f25887963f15492b604dd25cb149c501bbabf (patch) | |
| tree | 0ca35ad39945fc8e516682d2dd353e2802bfddc6 /kernel/module-internal.h | |
| parent | bpf: Explicitly memset the bpf_attr structure (diff) | |
| download | linux-5c6f25887963f15492b604dd25cb149c501bbabf.tar.xz linux-5c6f25887963f15492b604dd25cb149c501bbabf.zip | |
bpf: Explicitly memset some bpf info structures declared on the stack
Trying to initialize a structure with "= {};" will not always clean out
all padding locations in a structure. So be explicit and call memset to
initialize everything for a number of bpf information structures that
are then copied from userspace, sometimes from smaller memory locations
than the size of the structure.
Reported-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20200320162258.GA794295@kroah.com
Diffstat (limited to 'kernel/module-internal.h')
0 files changed, 0 insertions, 0 deletions