diff options
| author |   Steven Luong <sluong@cisco.com> | 2022-11-03 14:34:07 -0700 |
|---|---|---|
| committer | steven luong <sluong@cisco.com> | 2022-11-03 21:46:40 +0000 |
| commit | 208e7dc3627385593973212fa09262d4384cc42b (patch) | |
| tree | 96022254c85c16b6c2f83cce3cacdd8f2d7dc797 | |
| parent | e69d97438530511a1b71216f1460fe1a8c1450fe (diff) | |
tls: crash in mbedtls due to ctx is already free
_clib_error (how_to_die=2, function_name=0x0, line_number=0, fmt=0x7fffb3a7e1b5 "%s:%d (%s) assertion `%s' fails") at src/vppinfra/error.c:143
mbedtls_ctx_get (ctx_index=0) at src/plugins/tlsmbedtls/tls_mbedtls.c:114
tls_ctx_get (ctx_handle=536870912) at src/vnet/tls/tls.c:310
tls_app_session_cleanup (s=0x7fffbf102040, ntf=SESSION_CLEANUP_SESSION) at src/vnet/tls/tls.c:624
app_worker_cleanup_notify (app_wrk=0x7fffbef95f80, s=0x7fffbf102040, ntf=SESSION_CLEANUP_SESSION) at src/vnet/session/application_worker.c:445
session_cleanup_notify (s=0x7fffbf102040, ntf=SESSION_CLEANUP_SESSION) at src/vnet/session/session.c:262
session_free_w_fifos (s=0x7fffbf102040) at src/vnet/session/session.c:268
session_delete (s=0x7fffbf102040) at src/vnet/session/session.c:287
session_transport_delete_notify (tc=0x7fffbdf63c40) at src/vnet/session/session.c:1159
tcp_handle_cleanups (wrk=0x7fffbef46d40, now=133.30033046694487) at src/vnet/tcp/tcp.c:1298
tcp_update_time (now=133.30033046694487, thread_index=2 '\002') at src/vnet/tcp/tcp.c:1309
session_update_time_subscribers (smm=0x7ffff7f75ce0 <session_main>, now=133.30033046694487, thread_index=2) at src/vnet/session/session_node.c:1817
session_queue_node_fn (vm=0x7fffbdfad1c0, node=0x7fffbe0b1340, frame=0x0) at src/vnet/session/session_node.c:1934
dispatch_node (vm=0x7fffbdfad1c0, node=0x7fffbe0b1340, type=VLIB_NODE_TYPE_INPUT, dispatch_state=VLIB_NODE_STATE_POLLING, frame=0x0, last_time_stamp=4722227957546624) at src/vlib/main.c:960
Putting a breakpoint in gdb, I found out ctx was free in mbedtls_app_close.
Looking at app_close function in picotls and openssl, I don't see they
free ctx and they don't crash when processing cleanup. I am inclined to
think that mbedtls_ctx_free should not be called in mbedtls_app_close
at src/plugins/tlsmbedtls/tls_mbedtls.c:92
at src/plugins/tlsmbedtls/tls_mbedtls.c:559
at src/vnet/tls/tls.c:360
thread_index=2) at src/vnet/tls/tls.c:762
conn_index=536870912, thread_index=2 '\002')
at src/vnet/session/transport.c:332
at src/vnet/session/session.c:1608
elt=0x7fffbdfef3dc)
at src/vnet/session/session_node.c:1672
node=0x7fffbe0b1340, frame=0x0)
at src/vnet/session/session_node.c:1966
node=0x7fffbe0b1340, type=VLIB_NODE_TYPE_INPUT,
dispatch_state=VLIB_NODE_STATE_POLLING, frame=0x0,
last_time_stamp=4721919444027682)
at src/vlib/main.c:960
Type: fix
Signed-off-by: Steven Luong <sluong@cisco.com>
Change-Id: Ic5c13e659aee618c8accee42af9f40931b62f467
| -rw-r--r-- | src/plugins/tlsmbedtls/tls_mbedtls.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/src/plugins/tlsmbedtls/tls_mbedtls.c b/src/plugins/tlsmbedtls/tls_mbedtls.c index a6b968eac14..928b31b4a7f 100644 --- a/src/plugins/tlsmbedtls/tls_mbedtls.c +++ b/src/plugins/tlsmbedtls/tls_mbedtls.c @@ -555,7 +555,6 @@ mbedtls_app_close (tls_ctx_t * ctx) { tls_disconnect_transport (ctx); session_transport_delete_notify (&ctx->connection); - mbedtls_ctx_free (ctx); return 0; } |