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net/smc: put sk reference if close work was canceled

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Note that we always hold a reference to sock when attempting
to submit close_work. Therefore, if we have successfully
canceled close_work from pending, we MUST release that reference
to avoid potential leaks.

Fixes: 42bfba9eaa ("net/smc: immediate termination for SMCD link groups")
Signed-off-by: D. Wythe <alibuda@linux.alibaba.com>
Reviewed-by: Dust Li <dust.li@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
D. Wythe 2023-11-03 14:07:40 +08:00 committed by David S. Miller
parent c5bf605ba4
commit aa96fbd6d7
1 changed files with 2 additions and 1 deletions
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3
net/smc/smc_close.c
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@ -116,7 +116,8 @@ static void smc_close_cancel_work(struct smc_sock *smc)
struct sock *sk = &smc->sk;
release_sock(sk);
cancel_work_sync(&smc->conn.close_work);
if (cancel_work_sync(&smc->conn.close_work))
sock_put(sk);
cancel_delayed_work_sync(&smc->conn.tx_work);
lock_sock(sk);
}