[Coverity CID :219637] Untrusted value as argument in tests/net/lib/coap/src/main.c

[zephyrbot]

Static code scan issues found in file:

https:/zephyrproject-rtos/zephyr/tree/bd97359a5338b2542d19011b6d6aa1d8d1b9cc3f/tests/net/lib/coap/src/main.c

Category: Insecure data handling
Function: test_parse_req_build_empty_ack
Component: Tests
CID: 219637

Details:

zephyr/tests/net/lib/coap/src/main.c

Line 637 in bd97359

k_free(ack_data);

Please fix or provide comments in coverity using the link:

https://scan9.coverity.com/reports.htm#v32951/p12996.

Note: This issue was created automatically. Priority was set based on classification
of the file affected and the impact field in coverity. Assignees were set using the CODEOWNERS file.

[rlubos]

This is a false positive.

Coverity reports that Function coap_header_get_id returns tainted data.

This is not the case as any value that fits into uint16_t range is a good one - there's nothing to validate here.