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coap_ws.c: Fix potential OOB on read headers

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Jon Shallow authored and Jon Shallow committed 2026-05-07 17:09:22 +01:00
1 parent 54faa02565
commit 382e16cc7f
1 file changed
+1 -1
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src/coap_ws.c
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@@ -498,7 +498,7 @@ coap_ws_rd_http_header(coap_session_t *session) {
* some frame info that needs to be subsequently processed
*/
rem = ws->http_ofs > (sizeof(ws->http_hdr) - 1 - COAP_MAX_FS) ?
sizeof(ws->http_hdr) - ws->http_ofs : COAP_MAX_FS;
sizeof(ws->http_hdr) - ws->http_ofs -1 : COAP_MAX_FS;
bytes = session->sock.lfunc[COAP_LAYER_WS].l_read(session,
&ws->http_hdr[ws->http_ofs],
rem);