RE: NMap 7.40 Bug report, IPv6 OSscan causes fatal error on IOD deletion
"Reese, Robert" <[email protected]>
| Newsgroups | gmane.comp.security.nmap.devel |
|---|---|
| Message-ID | <[email protected]> |
A bug-fix for this problem has been submitted via a pull request on Github. https://github.com/nmap/nmap/pull/961 Thanks, Bob Reese Dr. Robert Reese Associate Professor, ECE, Mississippi State University US Mail: Box 9571, Miss State, MS 39762 Courier: 406 Hardy Rd, Simrall Bldg, Miss State, MS 39762 662 325 3154 From: Reese, Robert Sent: Wednesday, August 02, 2017 10:21 AM To: '[email protected]' <[email protected]> Subject: NMap 7.40 Bug report, IPv6 OSscan causes fatal error on IOD deletion Executive summary: (I looked for this error in the archives, found one reference, but this looks like a different solution). Nmap 7.40 on Windows 7. Scan of two IPv6 hosts with OS detection enabled; OS detection on second host causes fatal error exit when it attempts to delete the IOD used by OS detection on the first host. The IOD delete function (nsock_iod.c/nsock_iod_delete function attempts to delete the nsock_iod, but it cannot find the pending event, so it aborts through fatal function in nsock/error.c with message ""Trying to delete NSI, but could not find the purportedly pending events on that IOD". This was run with options: nmap -oX - -6 -F -d4 -T3 -O --max-hostgroup 1 -iL hosts.txt 2> tmperr.txt The max-hostgroup was limited to 1 to remove host parallelism. It seems to be immaterial which host is queried first. This is triggered by OS scan; the problem does not occur when the -O option is removed. There are more details in the attached files, including debugging screenshots from Visual Studio 2013. I can debug this if I have a little help on how to proceed. Thanks, Bob R Dr. Robert Reese Associate Professor, ECE, Mississippi State University US Mail: Box 9571, Miss State, MS 39762 Courier: 406 Hardy Rd, Simrall Bldg, Miss State, MS 39762 662 325 3154 _______________________________________________ Sent through the dev mailing list https://nmap.org/mailman/listinfo/dev Archived at http://seclists.org/nmap-dev/