Commit f67b17c0 authored by Paolo Abeni's avatar Paolo Abeni Committed by Greg Kroah-Hartman

ipfrag: really prevent allocation on netns exit

commit f6f2a4a2eb92bc73671204198bb2f8ab53ff59fb upstream.

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: default avatarPaolo Abeni <>
Signed-off-by: default avatarDavid S. Miller <>
Signed-off-by: default avatarBen Hutchings <>
Signed-off-by: default avatarGreg Kroah-Hartman <>
parent 24641fb6
......@@ -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);
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