tor

commit 037dea2252e5122059bd189c57ad606f05c7b0b7
parent 3129910b11b576ae32ac84fa3fd9feb3e5648dce
Author: Micah Elizabeth Scott <beth@torproject.org>
Date:   Tue, 14 Mar 2023 09:01:14 -0700

hs_pow: fix assert in services that receive unsolicited proof of work

Signed-off-by: Micah Elizabeth Scott <beth@torproject.org>

Diffstat:
M
src/feature/hs/hs_cell.c
 | 
5
+++++

1 file changed, 5 insertions(+), 0 deletions(-)
diff --git a/src/feature/hs/hs_cell.c b/src/feature/hs/hs_cell.c
@@ -807,6 +807,11 @@ handle_introduce2_encrypted_cell_pow_extension(const hs_service_t *service,
 
   tor_assert(field);
 
+  if (!service->state.pow_state) {
+    log_info(LD_REND, "Unsolicited PoW solution in INTRODUCE2 request.");
+    goto end;
+  }
+
   if (trn_cell_extension_pow_parse(&pow,
                trn_extension_field_getconstarray_field(field),
                trn_extension_field_getlen_field(field)) < 0) {