Date: Sat, 29 May 2021 15:50:37 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: Oliver Hartkopp <socketcan@...tkopp.net> Cc: mkl@...gutronix.de, alex.popov@...ux.com, seth.arnold@...onical.com, steve.beattie@...onical.com, cascardo@...onical.com, oss-security@...ts.openwall.com, Norbert Slusarek <nslusarek@....net>, "David S. Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>, security@...nel.org Subject: Re: Linux kernel: net/can/isotp: race condition leads to local privilege escalation On Fri, May 28, 2021 at 05:41:03PM +0200, Oliver Hartkopp wrote: > Hello Greg, > > this patch ("can: isotp: prevent race between isotp_bind() and > isotp_setsockopt()") has hit Linus' tree ~36h ago: > > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/net/can?id=2b17c400aeb44daf041627722581ade527bb3c1d > > It has a CVE number and is potentially exploitable - but it was not in the > latest batch of stable kernels about ~4h ago. Give us a chance :) > > It was obviously not tagged properly for stable kernels but has a fixes-tag: > > Fixes: 921ca574cd38 ("can: isotp: add SF_BROADCAST support for functional > addressing") > > which was introduced in 5.11 Now queued up, thanks. greg k-h
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