Re: [BUG] wifi: mt7902: NULL pointer dereference

[Bongani Hlope <developer@hlope.org.za>]

On Sat, 2 May 2026 12:58:24 +0200
Bongani Hlope <developer@hlope.org.za> wrote:

> Hello
> 
> I'm not sure if this has been reported yet, first ran into this on
> linux-next and it is still present on linux 7.1.0-rc1+. I get the
> following kernel Oops:

addr2line -e drivers/net/wireless/mediatek/mt76/mt7921/mt7921-common.ko
mt7921_channel_switch_rx_beacon+0x1f

Gives:
include/net/cfg80211.h:1016

Which is here:

 1007 static inline bool
 1008 cfg80211_chandef_identical(const struct cfg80211_chan_def *chandef1,
 1009                            const struct cfg80211_chan_def *chandef2)
 1010 {
 1011         return (chandef1->chan == chandef2->chan &&
 1012                 chandef1->width == chandef2->width &&
 1013                 chandef1->center_freq1 == chandef2->center_freq1 &&
 1014                 chandef1->freq1_offset == chandef2->freq1_offset &&
 1015                 chandef1->center_freq2 == chandef2->center_freq2 &&
 --> 1016                 chandef1->punctured == chandef2->punctured &&
 1017                 chandef1->s1g_primary_2mhz == chandef2->s1g_primary_2mhz);
 1018 }


8<

> Regards,
> Bongani Hlope
> 
>