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Message-Id: <20171227.103754.1156659391056933085.davem@davemloft.net> Date: Wed, 27 Dec 2017 10:37:54 -0500 (EST) From: David Miller <davem@...emloft.net> To: avinash.repaka@...cle.com Cc: santosh.shilimkar@...cle.com, netdev@...r.kernel.org, linux-rdma@...r.kernel.org, rds-devel@....oracle.com, linux-kernel@...r.kernel.org Subject: Re: [PATCH net] RDS: Check cmsg_len before dereferencing CMSG_DATA From: Avinash Repaka <avinash.repaka@...cle.com> Date: Thu, 21 Dec 2017 20:17:04 -0800 > RDS currently doesn't check if the length of the control message is > large enough to hold the required data, before dereferencing the control > message data. This results in following crash: ... > To fix this, we verify that the cmsg_len is large enough to hold the > data to be read, before proceeding further. > > Reported-by: syzbot <syzkaller-bugs@...glegroups.com> > Signed-off-by: Avinash Repaka <avinash.repaka@...cle.com> Applied and queued up for -stable, thanks.
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