diff options
| author | Phillip Potter <phil@philpotter.co.uk> | 2021-04-06 18:45:54 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-04-16 12:00:22 +0200 |
| commit | 91ed28d697f6d6227c5508a110f87b306774c714 (patch) | |
| tree | ed92acecf2b5e8ad42c7e462ee5cd09c275a693b /lib/dynamic_debug.c | |
| parent | 508e8b008438e3c13e0bd1de5aa4d60d37f4124e (diff) | |
net: tun: set tun->dev->addr_len during TUNSETLINK processing
commit cca8ea3b05c972ffb5295367e6c544369b45fbdd upstream.
When changing type with TUNSETLINK ioctl command, set tun->dev->addr_len
to match the appropriate type, using new tun_get_addr_len utility function
which returns appropriate address length for given type. Fixes a
KMSAN-found uninit-value bug reported by syzbot at:
https://syzkaller.appspot.com/bug?id=0766d38c656abeace60621896d705743aeefed51
Reported-by: syzbot+001516d86dbe88862cec@syzkaller.appspotmail.com
Diagnosed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Phillip Potter <phil@philpotter.co.uk>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'lib/dynamic_debug.c')
0 files changed, 0 insertions, 0 deletions