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| author |   Eric Dumazet <eric.dumazet@gmail.com> | 2009-10-19 06:41:58 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2009-10-19 21:34:20 -0700 |
| commit | 55b8050353c4a212c94d7156e2bd5885225b869b (patch) | |
| tree | 013778c4d48b946b2c565f8b55f40e505ec255ce /include/net/inet_timewait_sock.h | |
| parent | bluetooth: static lock key fix (diff) | |
| download | linux-dev-55b8050353c4a212c94d7156e2bd5885225b869b.tar.xz linux-dev-55b8050353c4a212c94d7156e2bd5885225b869b.zip | |
net: Fix IP_MULTICAST_IF
ipv4/ipv6 setsockopt(IP_MULTICAST_IF) have dubious __dev_get_by_index() calls.
This function should be called only with RTNL or dev_base_lock held, or reader
could see a corrupt hash chain and eventually enter an endless loop.
Fix is to call dev_get_by_index()/dev_put().
If this happens to be performance critical, we could define a new dev_exist_by_index()
function to avoid touching dev refcount.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/inet_timewait_sock.h')
0 files changed, 0 insertions, 0 deletions