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| author | Cong Wang <xiyou.wangcong@gmail.com> | 2018-12-10 11:49:55 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-01-09 17:38:34 +0100 |
| commit | 2ce6d5aeafba9066eec0f93e85f463549f362dae (patch) | |
| tree | 2c50d328ef3d900ed93974715fdceb3b640c2e5a /security | |
| parent | b66ecc4f0b36597ee993b93f3a3a161f8309bab4 (diff) | |
tipc: use lock_sock() in tipc_sk_reinit()
[ Upstream commit 15ef70e286176165d28b0b8a969b422561a68dfc ]
lock_sock() must be used in process context to be race-free with
other lock_sock() callers, for example, tipc_release(). Otherwise
using the spinlock directly can't serialize a parallel tipc_release().
As it is blocking, we have to hold the sock refcnt before
rhashtable_walk_stop() and release it after rhashtable_walk_start().
Fixes: 07f6c4bc048a ("tipc: convert tipc reference table to use generic rhashtable")
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Cc: Ying Xue <ying.xue@windriver.com>
Cc: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'security')
0 files changed, 0 insertions, 0 deletions