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cifs: protect updating server->dstaddr with a spinlock
[ Upstream commit fada37f6f6
]
We use a spinlock while we are reading and accessing the destination address for a server.
We need to also use this spinlock to protect when we are modifying this address from
reconn_set_ipaddr().
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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1 changed files with 2 additions and 0 deletions
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@ -353,8 +353,10 @@ static int reconn_set_ipaddr(struct TCP_Server_Info *server)
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return rc;
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}
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spin_lock(&cifs_tcp_ses_lock);
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rc = cifs_convert_address((struct sockaddr *)&server->dstaddr, ipaddr,
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strlen(ipaddr));
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spin_unlock(&cifs_tcp_ses_lock);
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kfree(ipaddr);
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return !rc ? -1 : 0;
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