netdev - bind() should not return -EADDRINUSE

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:	Thu, 11 Dec 2014 14:19:11 -0500
From:	Phillip Susi <psusi@...ntu.com>
To:	netdev@...r.kernel.org
Subject: bind() should not return -EADDRINUSE

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Attempting to establish a connection to a remote host using the same
local port, but a different remote port as the previous connection (
that is still in TIME_WAIT ) results in bind() returning -EADDRINUSE.
 By changing the remote port, you avoid the conflict with the other
connection that is in TIME_WAIT, but since the remote port is not
known when bind() is called, it incorrectly returns -EADDRINUSE.  This
check should not be done in bind(), but deferred until the remote port
is known in the call to connect(), or listen().

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.17 (MingW32)

iQEcBAEBAgAGBQJUie4vAAoJENRVrw2cjl5R8CgH/jgdrBXs1Yso7XsHtrsUgO75
P8bY3Mf8eOuAkLvwbHopyGr19UZJJ+5zCQWc6bus9BRa7jSQvPCRw8fSjg3u+NXs
r9/qEqiDrYwAJqV5SwqDPGU8xGwq8v31bbT09spGIL9fABW3krBFtDHcZ/PzGA/p
UGDgELdkU7QIMKvC7FAV5RzvMXpmAI+m7iQiF936QkGZPN0AOCTea0sB+IpeidTO
/ChLd2iaEqAmS6UGh3jIQSNcTB3Ho3imHHMjTCel2v8+SgCBb2Tp3HzfmmIsGAnh
YeH+ZCNHD08c+k9yprEVjCH6fwMOo7CWzyPnSme+Ggk0L5r9oj8iz4xIeIMv43o=
=Ou3S
-----END PGP SIGNATURE-----
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html