Message ID | 20160816144538.3181-1-thierry.reding@gmail.com |
---|---|
State | Accepted, archived |
Delegated to: | David Miller |
Headers | show |
From: Thierry Reding <thierry.reding@gmail.com> Date: Tue, 16 Aug 2016 16:45:38 +0200 > From: Thierry Reding <treding@nvidia.com> > > While commit 9c706a49d660 ("net: ipconfig: fix use after free") avoids > the use after free, the resulting code still ends up calling both the > ic_setup_if() and ic_setup_routes() after calling ic_close_devs(), and > access to the device is still required. > > Move the call to ic_close_devs() to the very end of the function. > > Signed-off-by: Thierry Reding <treding@nvidia.com> > --- > This applies on top of next-20160816. Applied, thanks.
diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c index 66c2fe602810..ba9cbeafbb2e 100644 --- a/net/ipv4/ipconfig.c +++ b/net/ipv4/ipconfig.c @@ -1530,12 +1530,14 @@ static int __init ip_auto_config(void) * Close all network devices except the device we've * autoconfigured and set up routes. */ - ic_close_devs(); if (ic_setup_if() < 0 || ic_setup_routes() < 0) - return -1; + err = -1; + else + err = 0; + ic_close_devs(); - return 0; + return err; } late_initcall(ip_auto_config);