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| author |   Jakub Kicinski <jakub.kicinski@netronome.com> | 2019-04-10 11:04:31 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-04-10 13:07:02 -0700 |
| commit | 35b71a34ada62c9573847a324bf06a133fe11b11 (patch) | |
| tree | 1161595f0333fca7a5f419b3200b15eee8a21ce3 /net/tls/tls_device.c | |
| parent | net/tls: fix the IV leaks (diff) | |
| download | linux-dev-35b71a34ada62c9573847a324bf06a133fe11b11.tar.xz linux-dev-35b71a34ada62c9573847a324bf06a133fe11b11.zip | |
net/tls: don't leak partially sent record in device mode
David reports that tls triggers warnings related to
sk->sk_forward_alloc not being zero at destruction time:
WARNING: CPU: 5 PID: 6831 at net/core/stream.c:206 sk_stream_kill_queues+0x103/0x110
WARNING: CPU: 5 PID: 6831 at net/ipv4/af_inet.c:160 inet_sock_destruct+0x15b/0x170
When sender fills up the write buffer and dies from
SIGPIPE. This is due to the device implementation
not cleaning up the partially_sent_record.
This is because commit a42055e8d2c3 ("net/tls: Add support for async encryption of records for performance")
moved the partial record cleanup to the SW-only path.
Fixes: a42055e8d2c3 ("net/tls: Add support for async encryption of records for performance")
Reported-by: David Beckett <david.beckett@netronome.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/tls/tls_device.c')
| -rw-r--r-- | net/tls/tls_device.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/net/tls/tls_device.c b/net/tls/tls_device.c index 38b3b2a9835a..9f3bdbc1e593 100644 --- a/net/tls/tls_device.c +++ b/net/tls/tls_device.c @@ -219,6 +219,13 @@ void tls_device_sk_destruct(struct sock *sk) } EXPORT_SYMBOL(tls_device_sk_destruct); +void tls_device_free_resources_tx(struct sock *sk) +{ + struct tls_context *tls_ctx = tls_get_ctx(sk); + + tls_free_partial_record(sk, tls_ctx); +} + static void tls_append_frag(struct tls_record_info *record, struct page_frag *pfrag, int size) |