lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Message-Id: <20230127025941.2813766-1-Thomas.Winter@alliedtelesis.co.nz>
Date:   Fri, 27 Jan 2023 15:59:39 +1300
From:   Thomas Winter <Thomas.Winter@...iedtelesis.co.nz>
To:     davem@...emloft.net, yoshfuji@...ux-ipv6.org, dsahern@...nel.org,
        pabeni@...hat.com, edumazet@...gle.com, kuba@...nel.org,
        a@...table.cc, netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Thomas Winter <Thomas.Winter@...iedtelesis.co.nz>
Subject: [PATCH v4 0/2] ip/ip6_gre: Fix GRE tunnels not generating IPv6 link local addresses

For our point-to-point GRE tunnels, they have IN6_ADDR_GEN_MODE_NONE
when they are created then we set IN6_ADDR_GEN_MODE_EUI64 when they
come up to generate the IPv6 link local address for the interface.
Recently we found that they were no longer generating IPv6 addresses.

Also, non-point-to-point tunnels were not generating any IPv6 link
local address and instead generating an IPv6 compat address,
breaking IPv6 communication on the tunnel.

These failures were caused by commit e5dd729460ca and this patch set
aims to resolve these issues.

Thomas Winter (2):
  ip/ip6_gre: Fix changing addr gen mode not generating IPv6 link local
    address
  ip/ip6_gre: Fix non-point-to-point tunnel not generating IPv6 link
    local address

 net/ipv6/addrconf.c | 61 ++++++++++++++++++++++++---------------------
 1 file changed, 33 insertions(+), 28 deletions(-)

-- 
2.39.0

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ