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Re: [PATCH] ath9k: Fix a NULL pointer dereference in ath_rate_get

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On Wed, 2008-12-17 at 13:25 +0100, Christian Lamparter wrote:

> hostapd: wlan1: STA XX:XX:XX:XX:0d IEEE 802.11: authenticated
> kernel: [ 3130.431067] ------------[ cut here ]------------
> kernel: [ 3130.431076] WARNING: at net/mac80211/rc80211_minstrel.c:69 minstrel_rate_init+0xb8/0x320 [mac80211]()
> kernel: [ 3130.431081] Modules linked in: p54usb p54pci p54common [...]
> kernel: [ 3130.431300] Pid: 16961, comm: hostapd2 Tainted: P           2.6.28-rc7-wl #3
> [ 3130.431305] Call Trace:
> [ 3130.431318]  [<ffffffff802343c1>] warn_on_slowpath+0x51/0x75
> [ 3130.431329]  [<ffffffff803d74b0>] rb_insert_color+0xba/0xe2
> [ 3130.431338]  [<ffffffff802480ef>] __remove_hrtimer+0x7c/0x88
> [ 3130.431375]  [<ffffffffa00bd30e>] minstrel_rate_init+0xb8/0x320 [mac80211]
> [ 3130.431417]  [<ffffffffa00ae713>] ieee80211_add_station+0x145/0x17d [mac80211]
> hostapd: wlan1: STA XX:XX:XX:XX:0d IEEE 802.11: associated (aid 1, accounting session 494187DD-00000000)
> kernel: [ 3130.431440]  [<ffffffffa00897af>] nl80211_new_station+0x1b3/0x20b [cfg80211]
> kernel: [ 3130.431450]  [<ffffffff80595691>] mutex_lock+0xd/0x1e
> kernel: [ 3130.431459]  [<ffffffff804f6f86>] nla_parse+0x4b/0xb2
> 
> yup, the Warning just happend right between auth and assoc

This, umm, seems totally unrelated since Jouni was fixing something in
ath9k's RC algorithm.

johannes

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