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| author |   Vasily Khoruzhick <vasilykh@arista.com> | 2018-10-25 12:15:43 -0700 |
|---|---|---|
| committer |   Pablo Neira Ayuso <pablo@netfilter.org> | 2018-11-03 14:16:28 +0100 |
| commit | f393808dc64149ccd0e5a8427505ba2974a59854 (patch) | |
| tree | 023e5b21bd9552c5f15764d0f8ed50e7a5c574ce /tools/perf/scripts/python/exported-sql-viewer.py | |
| parent | netfilter: nft_compat: ebtables 'nat' table is normal chain type (diff) | |
| download | linux-dev-f393808dc64149ccd0e5a8427505ba2974a59854.tar.xz linux-dev-f393808dc64149ccd0e5a8427505ba2974a59854.zip | |
netfilter: conntrack: fix calculation of next bucket number in early_drop
If there's no entry to drop in bucket that corresponds to the hash,
early_drop() should look for it in other buckets. But since it increments
hash instead of bucket number, it actually looks in the same bucket 8
times: hsize is 16k by default (14 bits) and hash is 32-bit value, so
reciprocal_scale(hash, hsize) returns the same value for hash..hash+7 in
most cases.
Fix it by increasing bucket number instead of hash and rename _hash
to bucket to avoid future confusion.
Fixes: 3e86638e9a0b ("netfilter: conntrack: consider ct netns in early_drop logic")
Cc: <stable@vger.kernel.org> # v4.7+
Signed-off-by: Vasily Khoruzhick <vasilykh@arista.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'tools/perf/scripts/python/exported-sql-viewer.py')
0 files changed, 0 insertions, 0 deletions