On Mon, Feb 10, 2020 at 12:02:33PM -0600, Larry Finger wrote:

In routine wpa_supplicant_ioctl(), the user-controlled p->length is
checked to be at least the size of struct ieee_param size, but the code
does not detect the case where p->length is greater than the size
of the struct, thus a malicious user could be wasting kernel memory.
Fixes commit 554c0a3abf216 ("staging: Add rtl8723bs sdio wifi driver").

Reported by: Pietro Oliva [off-list ref]
Cc: Pietro Oliva <redacted>
Cc: Stable <redacted>
Fixes: 554c0a3abf216 ("staging: Add rtl8723bs sdio wifi driver").
Signed-off-by: Larry Finger <redacted>
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Funny line :)

I'll go edit it...

thanks,

greg k-h