diff options
| author | Jakub Kicinski <jakub.kicinski@netronome.com> | 2019-04-19 16:52:19 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-04-20 20:36:51 -0700 |
| commit | 12c7686111326148b4b5db189130522a4ad1be4a (patch) | |
| tree | e7eb8437b2d9d6f8b592019a768c27815e697cfd /net/tls/tls_main.c | |
| parent | 62ef81d5632634d5e310ed25b9b940b2b6612b46 (diff) | |
| download | linux-12c7686111326148b4b5db189130522a4ad1be4a.tar.bz2 | |
net/tls: don't leak IV and record seq when offload fails
When device refuses the offload in tls_set_device_offload_rx()
it calls tls_sw_free_resources_rx() to clean up software context
state.
Unfortunately, tls_sw_free_resources_rx() does not free all
the state tls_set_sw_offload() allocated - it leaks IV and
sequence number buffers. All other code paths which lead to
tls_sw_release_resources_rx() (which tls_sw_free_resources_rx()
calls) free those right before the call.
Avoid the leak by moving freeing of iv and rec_seq into
tls_sw_release_resources_rx().
Fixes: 4799ac81e52a ("tls: Add rx inline crypto offload")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/tls/tls_main.c')
| -rw-r--r-- | net/tls/tls_main.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/net/tls/tls_main.c b/net/tls/tls_main.c index 9547cea0ce3b..478603f43964 100644 --- a/net/tls/tls_main.c +++ b/net/tls/tls_main.c @@ -293,11 +293,8 @@ static void tls_sk_proto_close(struct sock *sk, long timeout) #endif } - if (ctx->rx_conf == TLS_SW) { - kfree(ctx->rx.rec_seq); - kfree(ctx->rx.iv); + if (ctx->rx_conf == TLS_SW) tls_sw_free_resources_rx(sk); - } #ifdef CONFIG_TLS_DEVICE if (ctx->rx_conf == TLS_HW) |