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| author |   Guillaume Nault <g.nault@alphalink.fr> | 2018-04-10 21:01:13 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2018-04-11 17:41:27 -0400 |
| commit | f6cd651b056ffd3b4e8496afd44d4ed44bf69136 (patch) | |
| tree | f616d85bc1fa0339fc227d4672cea1f4b4042a30 /samples | |
| parent | l2tp: fix races in tunnel creation (diff) | |
| download | linux-dev-f6cd651b056ffd3b4e8496afd44d4ed44bf69136.tar.xz linux-dev-f6cd651b056ffd3b4e8496afd44d4ed44bf69136.zip | |
l2tp: fix race in duplicate tunnel detection
We can't use l2tp_tunnel_find() to prevent l2tp_nl_cmd_tunnel_create()
from creating a duplicate tunnel. A tunnel can be concurrently
registered after l2tp_tunnel_find() returns. Therefore, searching for
duplicates must be done at registration time.
Finally, remove l2tp_tunnel_find() entirely as it isn't use anywhere
anymore.
Fixes: 309795f4bec2 ("l2tp: Add netlink control API for L2TP")
Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'samples')
0 files changed, 0 insertions, 0 deletions