Re: PROBLEM: null-ptr deref in ip_options_echo may lead to denial of service

2017-03-20 Thread Eric Dumazet
On Tue, 2017-03-21 at 00:36 +, Ben Hutchings wrote: > Actually, could I have a Signed-off-by for this, Eric? Sure I sent a formal patch. Thanks.

Re: PROBLEM: null-ptr deref in ip_options_echo may lead to denial of service

2017-03-20 Thread Ben Hutchings
On Tue, 2017-03-21 at 00:33 +, Ben Hutchings wrote: > On Sun, 2017-03-19 at 22:25 -0700, Eric Dumazet wrote: > > On Mon, 2017-03-20 at 12:59 +0800, Anarcheuz Fritz wrote: > > > Hi David, > > > > > > > > > While working on some legacy kernel I stumbled upon a null-ptr deref in > > > ip_options

Re: PROBLEM: null-ptr deref in ip_options_echo may lead to denial of service

2017-03-20 Thread Ben Hutchings
On Sun, 2017-03-19 at 22:25 -0700, Eric Dumazet wrote: > On Mon, 2017-03-20 at 12:59 +0800, Anarcheuz Fritz wrote: > > Hi David, > > > > > > While working on some legacy kernel I stumbled upon a null-ptr deref in > > ip_options_echo. The bug has been verified on the latest version > > 3.2.87 from

Re: PROBLEM: null-ptr deref in ip_options_echo may lead to denial of service

2017-03-19 Thread Eric Dumazet
On Mon, 2017-03-20 at 12:59 +0800, Anarcheuz Fritz wrote: > Hi David, > > > While working on some legacy kernel I stumbled upon a null-ptr deref in > ip_options_echo. The bug has been verified on the latest version > 3.2.87 from the supported long-term branch. > Fixed in commit 34b2cef20f19c879

PROBLEM: null-ptr deref in ip_options_echo may lead to denial of service

2017-03-19 Thread Anarcheuz Fritz
Hi David, While working on some legacy kernel I stumbled upon a null-ptr deref in ip_options_echo. The bug has been verified on the latest version 3.2.87 from the supported long-term branch. Description === The 2 setsockopt in the reproducer are required in order to reach the code pat