OpenCloudOS-Kernel/net/unix
Sasha Levin 12663bfc97 net: unix: allow set_peek_off to fail
unix_dgram_recvmsg() will hold the readlock of the socket until recv
is complete.

In the same time, we may try to setsockopt(SO_PEEK_OFF) which will hang until
unix_dgram_recvmsg() will complete (which can take a while) without allowing
us to break out of it, triggering a hung task spew.

Instead, allow set_peek_off to fail, this way userspace will not hang.

Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Acked-by: Pavel Emelyanov <xemul@parallels.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2013-12-10 21:45:15 -05:00
..
Kconfig net: Default UDP and UNIX diag to 'n'. 2012-01-07 12:13:06 -08:00
Makefile unix_diag: Write it into kbuild 2011-12-16 13:48:29 -05:00
af_unix.c net: unix: allow set_peek_off to fail 2013-12-10 21:45:15 -05:00
diag.c unix_diag: fix info leak 2013-10-02 16:08:24 -04:00
garbage.c af_unix: fix a fatal race with bit fields 2013-05-01 15:13:49 -04:00
sysctl_net_unix.c net: Convert uses of typedef ctl_table to struct ctl_table 2013-06-13 02:36:09 -07:00