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| author | Cong Wang <xiyou.wangcong@gmail.com> | 2018-02-09 00:53:52 +0300 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2018-02-14 23:05:32 +0300 |
| commit | db93a3632b0f8773a3899e04a3a3e0aa7a26eb46 (patch) | |
| tree | 326e1da2fc4b76761b74712758a4fa84d7aacdce /tools/perf/scripts/python/call-graph-from-sql.py | |
| parent | 57ebd808a97d7c5b1e1afb937c2db22beba3c1f8 (diff) | |
| download | linux-db93a3632b0f8773a3899e04a3a3e0aa7a26eb46.tar.xz | |
netfilter: ipt_CLUSTERIP: fix a refcount bug in clusterip_config_find_get()
In clusterip_config_find_get() we hold RCU read lock so it could
run concurrently with clusterip_config_entry_put(), as a result,
the refcnt could go back to 1 from 0, which leads to a double
list_del()... Just replace refcount_inc() with
refcount_inc_not_zero(), as for c->refcount.
Fixes: d73f33b16883 ("netfilter: CLUSTERIP: RCU conversion")
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Pablo Neira Ayuso <pablo@netfilter.org>
Cc: Florian Westphal <fw@strlen.de>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Reviewed-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-sql.py')
0 files changed, 0 insertions, 0 deletions