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| author | Johannes Berg <johannes@sipsolutions.net> | 2009-04-23 11:48:56 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2009-05-06 15:14:29 -0400 |
| commit | 0e41f715c04f85a40ae6531d660be2241717be1c (patch) | |
| tree | 35e44d6a2d4de54ad6cfd5d7fe2b6348efad2c6a /net/mac80211/mlme.c | |
| parent | c7ae011dc8306d982c25fb4f679752e790a08dc4 (diff) | |
| download | lwn-0e41f715c04f85a40ae6531d660be2241717be1c.tar.gz lwn-0e41f715c04f85a40ae6531d660be2241717be1c.zip | |
mac80211: fix various problems in ibss code
There are a few problems in the IBSS code:
a) it tries to activate interfaces that are down after scanning
b) it crashes after scanning on an IBSS iface that isn't active
c) since the ssid_len is used as a flag, need to make it visible
only after all other settings are set, this helps protect
against b)
For b), we get a system crash:
wlan0: Creating new IBSS network, BSSID ce:f9:88:76:1e:4d
BUG: unable to handle kernel NULL pointer dereference at (null)
IP: [<...>] ieee80211_sta_find_ibss+0x294/0x37d [mac80211]
Call Trace:
[<...>] ieee80211_ibss_notify_scan_completed+0x0/0x88 [mac80211]
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/mlme.c')
0 files changed, 0 insertions, 0 deletions