lkml.org 
[lkml]   [2018]   [Jan]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH v3] nl80211: take RCU read lock when calling ieee80211_bss_get_ie()
From
Date
On Mon, 2018-01-15 at 08:12 +0100, Dominik Brodowski wrote:
> As ieee80211_bss_get_ie() derefences an RCU to return ssid_ie, both
> the call to this function and any operation on this variable need
> protection by the RCU read lock.
>
> Fixes: 44905265bc15 ("nl80211: don't expose wdev->ssid for most interfaces")
> Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
> ---
>
> > but after, perhaps it's easier to just do
> >
> > if (ssid_ie &&
> > nla_put(...)
> > goto nla_put_failure_rcu_locked;
> >
> > and avoid the extra label (but yeah, it's getting late)
>
> OK, done that (and updated the commit message), and testet it.
>

Applied, thanks!

johannes

\
 
 \ /
  Last update: 2018-01-15 09:16    [W:0.036 / U:0.444 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site