MP:
https://code.launchpad.net/~rafaeldtinoco/ubuntu/+source/iproute2/+git/iproute2/+merge/396921
PPA: https://launchpad.net/~rafaeldtinoco/+archive/ubuntu/lp1913187
** Description changed:
+ [Impact]
+
+ * The ss tool crashes when a query returns no results (seg fault)
+
+ [Test Case]
+
+ * $ sudo ss -Hnp -o state established 'dport = 22' src 127.0.0.1 dst
127.0.0.1
+ Segmentation fault
+
+ [Where problems could occur]
+
+ * The ss tool is impacted and it has its code changed for the fix.
+
+ * The fix is a clean cherry-pick and straightforward (moving
+ declaration after a NULL check).
+
+ [Other Info]
+
When in Ubuntu Bionic, if one calls:
$ sudo ss -Hnp -o state established 'dport = 22' src 127.0.0.1 dst 127.0.0.1
tcp 0 0
127.0.0.1:58910 127.0.0.1:22
users:(("ssh",pid=11672,fd=3)) timer:(keepalive,119min,0)
it works. Just like when in Groovy:
$ sudo ss -Hnp -o state established 'dport = 22' src 127.0.0.1 dst 127.0.0.1
tcp 0 0
127.0.0.1:58908 127.0.0.1:22
users:(("ssh",pid=1488591,fd=3)) timer:(keepalive,119min,0)
but.. if there is nothing to show, in Bionic we get a segfault:
$ sudo ss -Hnp -o state established 'dport = 22' src 127.0.0.1 dst 127.0.0.1
Segmentation fault
** Description changed:
[Impact]
- * The ss tool crashes when a query returns no results (seg fault)
+ * The ss tool crashes when a query returns no results (seg fault)
[Test Case]
- * $ sudo ss -Hnp -o state established 'dport = 22' src 127.0.0.1 dst
127.0.0.1
- Segmentation fault
+ * $ sudo ss -Hnp -o state established 'dport = 22' src 127.0.0.1 dst
127.0.0.1
+ Segmentation fault
+
+ * PPA with the fix:
+ https://launchpad.net/~rafaeldtinoco/+archive/ubuntu/lp1913187
[Where problems could occur]
- * The ss tool is impacted and it has its code changed for the fix.
+ * The ss tool is impacted and it has its code changed for the fix.
- * The fix is a clean cherry-pick and straightforward (moving
+ * The fix is a clean cherry-pick and straightforward (moving
declaration after a NULL check).
[Other Info]
-
+
When in Ubuntu Bionic, if one calls:
$ sudo ss -Hnp -o state established 'dport = 22' src 127.0.0.1 dst 127.0.0.1
tcp 0 0
127.0.0.1:58910 127.0.0.1:22
users:(("ssh",pid=11672,fd=3)) timer:(keepalive,119min,0)
it works. Just like when in Groovy:
$ sudo ss -Hnp -o state established 'dport = 22' src 127.0.0.1 dst 127.0.0.1
tcp 0 0
127.0.0.1:58908 127.0.0.1:22
users:(("ssh",pid=1488591,fd=3)) timer:(keepalive,119min,0)
but.. if there is nothing to show, in Bionic we get a segfault:
$ sudo ss -Hnp -o state established 'dport = 22' src 127.0.0.1 dst 127.0.0.1
Segmentation fault
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https://bugs.launchpad.net/bugs/1913187
Title:
iproute2 segfaults when filtering sockets
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