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Re: [PATCH] wireless: wext: terminate ifr name coming from userspace

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  Re: [PATCH] wireless: wext: terminate ifr name coming from  userspace David Miller <davem@davemloft.net> - 2017-07-19 22:40 +0200

#1692188 — Re: [PATCH] wireless: wext: terminate ifr name coming from userspace

From: "Levin, Alexander (Sasha Levin)" <alexander.levin@verizon.com>
Date: Tue, 18 Jul 2017 04:23:16 +0000

> ifr name is assumed to be a valid string by the kernel, but nothing
> was forcing username to pass a valid string.
> 
> In turn, this would cause panics as we tried to access the string
> past it's valid memory.
> 
> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>

Applied and queued up for -stable.

dev_ifname() has the same bug, I'll post a patch for that.

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