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(parent: 8b64056) | patch
igmp: fix ip_mc_sf_allow race [v5]
authorFlavio Leitner <fleitner@redhat.com>
Tue, 2 Feb 2010 15:32:29 +0000 (07:32 -0800)
committerDavid S. Miller <davem@davemloft.net>
Tue, 2 Feb 2010 15:32:29 +0000 (07:32 -0800)
commitc85bb41e93184bf5494dde6d8fe5a81b564c84c8
tree2a5daec2aecc3fb3eedfba3f63a2156f38575b2dtree | snapshot
parent8b64056dacf6ec81986d63dff96fca039fe95f6ecommit | diff
igmp: fix ip_mc_sf_allow race [v5]

Almost all igmp functions accessing inet->mc_list are protected by
rtnl_lock(), but there is one exception which is ip_mc_sf_allow(),
so there is a chance of either ip_mc_drop_socket or ip_mc_leave_group
remove an entry while ip_mc_sf_allow is running causing a crash.

Signed-off-by: Flavio Leitner <fleitner@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
include/linux/igmp.h diff | blob | history
net/ipv4/igmp.c diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git