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lxc_spawn: initialize netpipe

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When rebooting an unprivileged container, netpipe starts out
as not -1.  If count_veths somehow changed this could lead
to trying to send data over nonexistent pipe.  (Ok can't
*really* happen, as it currently stands, but it's an open
end)

Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>
This commit is contained in:
Serge Hallyn 2014-04-04 21:26:16 -05:00
parent 21ca73b980
commit 2f2623ec2b
1 changed files with 2 additions and 0 deletions
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2
src/lxc/start.c
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@ -786,6 +786,8 @@ static int lxc_spawn(struct lxc_handler *handler)
int preserve_mask = 0, i; int preserve_mask = 0, i;
int netpipepair[2], nveths; int netpipepair[2], nveths;
netpipe = -1;
for (i = 0; i < LXC_NS_MAX; i++) for (i = 0; i < LXC_NS_MAX; i++)
if (handler->conf->inherit_ns_fd[i] != -1) if (handler->conf->inherit_ns_fd[i] != -1)
preserve_mask |= ns_info[i].clone_flag; preserve_mask |= ns_info[i].clone_flag;