netfilter buglog - Nov 2019 - [Bug 1378] New: UDP IPv6 destination address not usable

https://bugzilla.netfilter.org/show_bug.cgi?id=1378

            Bug ID: 1378
           Summary: UDP IPv6 destination address not usable
           Product: conntrack-tools
           Version: unspecified
          Hardware: x86_64
                OS: All
            Status: NEW
          Severity: normal
          Priority: P5
         Component: conntrack-daemon
          Assignee: netfilter-buglog at lists.netfilter.org
          Reporter: raemer at zit-rlp.de

Hi,

if IPv6_Destination_Address is set to a valid IPv6 address, conntrackd fails on
 start with "inet_pton(): IPv6 unsupported".
This can be fixed by changing the else clause to the same used for other IPv6
options:

diff --git a/src/read_config_yy.y b/src/read_config_yy.y
index a4aa7f5..31109c4 100644
--- a/src/read_config_yy.y
+++ b/src/read_config_yy.y
@@ -467,7 +467,7 @@ udp_option : T_IPV6_DEST_ADDR T_IP
                dlog(LOG_WARNING, "%s is not a valid IPv6 address",
$2);
                free($2);
                break;
-       } else {
+       } else if (err < 0) {
                dlog(LOG_ERR, "inet_pton(): IPv6 unsupported!");
                exit(EXIT_FAILURE);
        }

Best regards,
Jan-Martin

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https://bugzilla.netfilter.org/show_bug.cgi?id=1378

Pablo Neira Ayuso <pablo at netfilter.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
                 CC|                            |pablo at netfilter.org

--- Comment #1 from Pablo Neira Ayuso <pablo at netfilter.org> ---
Looks good, would you post this patch to netfilter-devel at vger.kernel.org
through git-format patch, also include your Signed-off-by tag.

Thanks!

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https://bugzilla.netfilter.org/show_bug.cgi?id=1378

Pablo Neira Ayuso <pablo at netfilter.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |FIXED

--- Comment #2 from Pablo Neira Ayuso <pablo at netfilter.org> ---
http://git.netfilter.org/conntrack-tools/commit/?id=ab0dcb580324dc8d9296443bc32ed3364642db1e

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