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authorPaolo Abeni <pabeni@redhat.com>2018-07-06 12:30:20 +0200
committerDavid S. Miller <davem@davemloft.net>2018-07-08 13:05:33 +0900
commitf6f2a4a2eb92bc73671204198bb2f8ab53ff59fb (patch)
tree9484acb56d8bfaed225e2d3aca9686f472b6057a /net/ipv4/inet_fragment.c
parentnet: diag: Don't double-free TCP_NEW_SYN_RECV sockets in tcp_abort (diff)
downloadlinux-dev-f6f2a4a2eb92bc73671204198bb2f8ab53ff59fb.tar.xz
linux-dev-f6f2a4a2eb92bc73671204198bb2f8ab53ff59fb.zip
ipfrag: really prevent allocation on netns exit
Setting the low threshold to 0 has no effect on frags allocation, we need to clear high_thresh instead. The code was pre-existent to commit 648700f76b03 ("inet: frags: use rhashtables for reassembly units"), but before the above, such assignment had a different role: prevent concurrent eviction from the worker and the netns cleanup helper. Fixes: 648700f76b03 ("inet: frags: use rhashtables for reassembly units") Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/inet_fragment.c')
-rw-r--r--net/ipv4/inet_fragment.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/inet_fragment.c b/net/ipv4/inet_fragment.c
index c9e35b81d093..1e4cf3ab560f 100644
--- a/net/ipv4/inet_fragment.c
+++ b/net/ipv4/inet_fragment.c
@@ -90,7 +90,7 @@ static void inet_frags_free_cb(void *ptr, void *arg)
void inet_frags_exit_net(struct netns_frags *nf)
{
- nf->low_thresh = 0; /* prevent creation of new frags */
+ nf->high_thresh = 0; /* prevent creation of new frags */
rhashtable_free_and_destroy(&nf->rhashtable, inet_frags_free_cb, NULL);
}