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RE: [PATCH] mwifiex: avoid freeing improper pointer in mwifiex_set_wowlan_mef_entry

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Hi John,

> From: John W. Linville [mailto:linville@xxxxxxxxxxxxx]
> Sent: Wednesday, June 24, 2015 12:16 AM
> To: linux-wireless@xxxxxxxxxxxxxxx
> Cc: Amitkumar Karwar; Avinash Patil; Kalle Valo; John W. Linville
> Subject: [PATCH] mwifiex: avoid freeing improper pointer in
> mwifiex_set_wowlan_mef_entry
> 
> mwifiex_set_wowlan_mef_entry attempts to free a passed-in pointer in
> case of an error.  The only caller (mwifiex_set_mef_filter) passes that
> pointer as an offset into allocated memory, so any attempt to free that
> will not be the actual allocated pointer.
> 
> Address this by changing mwifiex_set_wowlan_mef_entry to not do any
> free, and to cause mwifiex_set_mef_filter to do the appropriate free if
> the call to mwifiex_set_wowlan_mef_entry fails.
> 
> Coverity CID #1295879
> 
> Signed-off-by: John W. Linville <linville@xxxxxxxxxxxxx>

Acked-by: Amitkumar Karwar <akarwar@xxxxxxxxxxx>

Thanks,
Amitkumar
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