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Code Issues

swaybar: use INT_MAX max JSON depth when parsing IPC response

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There's no inherent limit on the nesting Sway can generate, and the
default used by `json_tokener_new`, 32, can plausibly be hit during
regular usage.

Fixes #6115.
This commit is contained in:
Tudor Brindus 2021-03-21 17:14:16 -04:00 committed by Simon Ser
parent 152a559e30
commit 47f1f9b63e
1 changed files with 8 additions and 3 deletions
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11
swaybar/ipc.c
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@ -547,9 +547,14 @@ bool handle_ipc_readable(struct swaybar *bar) {
return false;
}
json_object *result = json_tokener_parse(resp->payload);
if (!result) {
sway_log(SWAY_ERROR, "failed to parse payload as json");
json_tokener *tok = json_tokener_new_ex(INT_MAX);
json_object *result = json_tokener_parse_ex(tok, resp->payload, -1);
enum json_tokener_error err = json_tokener_get_error(tok);
json_tokener_free(tok);
if (err != json_tokener_success) {
sway_log(SWAY_ERROR, "failed to parse payload as json: %s",
json_tokener_error_desc(err));
free_ipc_response(resp);
return false;
}