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Re: [PATCHv2] mac80211: fix NULL ptr dereference during mesh peer connection for non HE devices

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On 2021-06-15 19:47, Nicolas Cavallari wrote:
On 19/04/2021 13:23, Johannes Berg wrote:
On Thu, 2021-04-15 at 16:17 +0530, Abinaya Kalaiselvan wrote:
"sband->iftype_data" is not assigned with any value for non HE supported
devices, which causes NULL pointer access during mesh peer connection
in those devices. Fix this by accessing the pointer after HE
capabilities condition check.

Fixes: 7f7aa94bcaf0 (mac80211: reduce peer HE MCS/NSS to own capabilities)
Signed-off-by: Abinaya Kalaiselvan <akalaise@xxxxxxxxxxxxxx>
---
v2:
* ieee80211_sta_he_cap structure instance is initialized.

How about taking other feedback into account?

johannes


I got a crash because of this bug and this patch fixes it. Abinaya, do
you plan to submit a version with the indentation fixed, or can I do
it ?

Thanks Nicolas. I have sent the updated patch with indentation fix.

Thanks,
Abinaya Kalaiselvan



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