Option -A breaks scan for opened 53/tcp port

[overheavenlyshadows]

Describe the bug
When using option -A to scan opened 53/tcp port it goes to "Unexpected error in NSE_TYPE_READ callback. Error code: 50 (Network is down)"

To Reproduce
Scan any host with opened 53 port using macos sonoma 14.3.1 (arm)

Expected behavior
Scanned port.

Version info (please complete the following information):
Nmap version 7.94 ( https://nmap.org )
Platform: arm-apple-darwin23.2.0
Compiled with: liblua-5.4.6 openssl-3.2.1 libssh2-1.11.0 libz-1.2.12 libpcre2-10.43 nmap-libpcap-1.10.4 nmap-libdnet-1.12 ipv6
Compiled without:
Available nsock engines: kqueue poll select

Additional context
Initiating Connect Scan at 18:31
Scanning <target_host> (<target_ip>) [1 port]
Discovered open port 53/tcp on <target_ip>
Completed Connect Scan at 18:31, 0.00s elapsed (1 total ports)
Initiating Service scan at 18:31
Scanning 1 service on <target_host> (<target_ip>)
Unexpected error in NSE_TYPE_READ callback. Error code: 50 (Network is down)
QUITTING!

[fyodor]

Thanks for the report. It looks like we need to handle ENETDOWN error code. @dmiller-nmap is working on it.

[overheavenlyshadows]

@fyodor seems like it was fixed in 7.95

[fyodor]

Thanks for the update @overheavenlyshadows. We haven't put in the code fix yet but you may not be receiving the "network is down" callback error for other reasons. We're still working on the permanent fix and hope to have it in the next Nmap release.

[fyodor]

Also we discussed it in a meeting today and @dmiller-nmap noted that we should probably also adjust that function (servicescan_read_handler in service_scan.cc) to not quit on unexpected errors there