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| author |   Ka-Cheong Poon <ka-cheong.poon@oracle.com> | 2018-03-01 21:07:18 -0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2018-03-02 09:40:27 -0500 |
| commit | 84eef2b2187ed73c0e4520cbfeb874e964a0b56a (patch) | |
| tree | 910036b61425b56e91761802c77dc2ea15357b2a /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf (diff) | |
| download | wireguard-linux-84eef2b2187ed73c0e4520cbfeb874e964a0b56a.tar.xz wireguard-linux-84eef2b2187ed73c0e4520cbfeb874e964a0b56a.zip | |
rds: Incorrect reference counting in TCP socket creation
Commit 0933a578cd55 ("rds: tcp: use sock_create_lite() to create the
accept socket") has a reference counting issue in TCP socket creation
when accepting a new connection. The code uses sock_create_lite() to
create a kernel socket. But it does not do __module_get() on the
socket owner. When the connection is shutdown and sock_release() is
called to free the socket, the owner's reference count is decremented
and becomes incorrect. Note that this bug only shows up when the socket
owner is configured as a kernel module.
v2: Update comments
Fixes: 0933a578cd55 ("rds: tcp: use sock_create_lite() to create the accept socket")
Signed-off-by: Ka-Cheong Poon <ka-cheong.poon@oracle.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Acked-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions