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| author | Ido Schimmel <idosch@nvidia.com> | 2022-02-14 05:10:56 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-02-14 17:04:27 +0300 |
| commit | dd263a8cb1941d2d34a55633bd5366d9bebf4be8 (patch) | |
| tree | d2dd4854aef2b8e1a51865a0949c1faa9e26f79c /include | |
| parent | 7db45f8d955dac24e3dc58c0829f6c0760190986 (diff) | |
| download | linux-dd263a8cb1941d2d34a55633bd5366d9bebf4be8.tar.xz | |
ipv6: blackhole_netdev needs snmp6 counters
Whenever rt6_uncached_list_flush_dev() swaps rt->rt6_idev
to the blackhole device, parts of IPv6 stack might still need
to increment one SNMP counter.
Root cause, patch from Ido, changelog from Eric :)
This bug suggests that we need to audit rt->rt6_idev usages
and make sure they are properly using RCU protection.
Fixes: e5f80fcf869a ("ipv6: give an IPv6 dev to blackhole_netdev")
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions