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| author |   Taehee Yoo <ap420073@gmail.com> | 2020-03-13 06:50:14 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2020-03-16 01:46:09 -0700 |
| commit | 173756b86803655d70af7732079b3aa935e6ab68 (patch) | |
| tree | 3a2c08f723db982de612dd00162f0a6e3f1b5681 /net/unix/af_unix.c | |
| parent | Merge branch 'net-Use-scnprintf-for-avoiding-potential-buffer-overflow' (diff) | |
| download | wireguard-linux-173756b86803655d70af7732079b3aa935e6ab68.tar.xz wireguard-linux-173756b86803655d70af7732079b3aa935e6ab68.zip | |
hsr: use rcu_read_lock() in hsr_get_node_{list/status}()
hsr_get_node_{list/status}() are not under rtnl_lock() because
they are callback functions of generic netlink.
But they use __dev_get_by_index() without rtnl_lock().
So, it would use unsafe data.
In order to fix it, rcu_read_lock() and dev_get_by_index_rcu()
are used instead of __dev_get_by_index().
Fixes: f421436a591d ("net/hsr: Add support for the High-availability Seamless Redundancy protocol (HSRv0)")
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/unix/af_unix.c')
0 files changed, 0 insertions, 0 deletions