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| author |   Florian Westphal <fw@strlen.de> | 2019-03-06 12:44:17 +0100 |
|---|---|---|
| committer |   Pablo Neira Ayuso <pablo@netfilter.org> | 2019-03-08 16:41:09 +0100 |
| commit | 46f7487e161b195a1bd7ddbd9c6aba9c93ec881a (patch) | |
| tree | 542d44f0ab0003a0cc3e785f6c75215d87886cf5 /net/netfilter/xt_IDLETIMER.c | |
| parent | net/hsr: fix possible crash in add_timer() (diff) | |
| download | linux-dev-46f7487e161b195a1bd7ddbd9c6aba9c93ec881a.tar.xz linux-dev-46f7487e161b195a1bd7ddbd9c6aba9c93ec881a.zip | |
netfilter: nat: don't register device notifier twice
Otherwise, we get notifier list corruption.
This is the most simple fix: remove the device notifier call chain
from the ipv6 masquerade register function and handle it only
in the ipv4 version.
The better fix is merge
nf_nat_masquerade_ipv4/6_(un)register_notifier
into a single
nf_nat_masquerade_(un)register_notifiers
but to do this its needed to first merge the two masquerade modules
into a single xt_MASQUERADE.
Furthermore, we need to use different refcounts for ipv4/ipv6
until we can merge MASQUERADE.
Fixes: d1aca8ab3104a ("netfilter: nat: merge ipv4 and ipv6 masquerade functionality")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/netfilter/xt_IDLETIMER.c')
0 files changed, 0 insertions, 0 deletions