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| author |  Jakub Kicinski <jakub.kicinski@netronome.com>
| 2019-08-30 12:25:47 +0200 |
|---|---|---|
| committer |  David S. Miller <davem@davemloft.net>
| 2019-08-31 23:44:28 -0700 |
| commit | 15a7dea750e0162f273c6e61a94f96944b75b31e (patch) | |
| tree | 3d5d9bed6fd3f7e42183e803c1540895d89c4b71 /net/core | |
| parent | Merge branch 'qed-Enhancements' (diff) | |
| download | linux-15a7dea750e0162f273c6e61a94f96944b75b31e.tar.gz linux-15a7dea750e0162f273c6e61a94f96944b75b31e.tar.bz2 linux-15a7dea750e0162f273c6e61a94f96944b75b31e.zip | |
net/tls: use RCU protection on icsk->icsk_ulp_data
We need to make sure context does not get freed while diag
code is interrogating it. Free struct tls_context with
kfree_rcu().
We add the __rcu annotation directly in icsk, and cast it
away in the datapath accessor. Presumably all ULPs will
do a similar thing.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/sock_map.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/core/sock_map.c b/net/core/sock_map.c index 1330a7442e5b..01998860afaa 100644 --- a/net/core/sock_map.c +++ b/net/core/sock_map.c @@ -345,7 +345,7 @@ static int sock_map_update_common(struct bpf_map *map, u32 idx, return -EINVAL; if (unlikely(idx >= map->max_entries)) return -E2BIG; - if (unlikely(icsk->icsk_ulp_data)) + if (unlikely(rcu_access_pointer(icsk->icsk_ulp_data))) return -EINVAL; link = sk_psock_init_link(); |