torproject/tor
1
0
Fork 0
mirror of https://gitlab.torproject.org/tpo/core/tor.git synced 2024-12-06 19:41:15 +01:00
Code Issues Actions Packages Projects Releases Wiki Activity

Do not even try to keep going on a socket with socklen==0

Browse Source 
Back in #1240, r1eo linked to information about how this could happen
with older Linux kernels in response to nmap.  Bugs #4545 and #4547
are about how our approach to trying to deal with this condition was
broken and stupid.  Thanks to wanoskarnet for reminding us about #1240.

This is a fix for the abovementioned bugs, and is a bugfix on
0.1.0.3-rc.
This commit is contained in:
Nick Mathewson
2011-12-19 14:37:52 -05:00
parent cefff11950
commit b5e6bbc01d
2 changed files with 18 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files
changes/bug1240
+8
View File
@@ -0,0 +1,8 @@
o Minor bugfixes:
- When running with an older Linux kernel that erroneously responds
to strange nmap behavior by having accept() return successfully
with a zero-length socket, just close the connection. Previously,
we would try harder to learn the remote address: but there was no
such remote address to learn, and our method for trying to learn
it was incorrect. Fixes bugs #1240, #4745, and #4747. Bugfix on
0.1.0.3-rc. Reported and diagnosed by "r1eo".