[16441] in Kerberos-V5-bugs
[krbdev.mit.edu #8863] krb5int_key_delete: Assertion
daemon@ATHENA.MIT.EDU (Spencer Malone via RT)
Thu Jan 9 14:17:01 2020
From: "Spencer Malone via RT" <rt-comment@KRBDEV-PROD-APP-1.mit.edu>
In-Reply-To: <CAOHeFxfRbS1QzO2y7bVSkOoz-V39wF-ha1376kzHv9z4S7DJfA@mail.gmail.com>
Message-ID: <rt-4.4.4-52580-1578597392-660.8863-4-0@mit.edu>
To: "AdminCc of krbdev.mit.edu Ticket #8863":;
Date: Thu, 09 Jan 2020 14:16:32 -0500
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Thu Jan 09 14:16:32 2020: Request 8863 was acted upon.
Transaction: Ticket created by malone.spencer@gmail.com
Queue: krb5
Subject: krb5int_key_delete: Assertion `destructors_set[keynum] == 1' failed.
Owner: Nobody
Requestors: malone.spencer@gmail.com
Status: new
Ticket <URL: https://krbdev.mit.edu/rt/Ticket/Display.html?id=8863 >
Heyo! In our apache/httpd instances, we're regularly seeing the following
cause segfaults:
httpd: threads.c:395: krb5int_key_delete: Assertion
`destructors_set[keynum] == 1' failed.
We don't directly utilize krb5, but the library is pulled in by a few
transient dependencies.
After digging around on the net, it seems we aren't alone:
https://stackoverflow.com/questions/54213685/apache-seg-fault-krb5int-key-delete-assertion-destructors-setkeynum-1-fail
I tried to dump all apache modules that could be loading libkrb5 and came
up with...
/etc/httpd/modules/libphp7.so
libkrb5.so.3 => /lib64/libkrb5.so.3 (0x00007f4f35f65000)
libkrb5support.so.0 => /lib64/libkrb5support.so.0 (0x00007f4f34839000)
/etc/httpd/modules/libphp7-zts.so
libkrb5.so.3 => /lib64/libkrb5.so.3 (0x00007ff228114000)
libkrb5support.so.0 => /lib64/libkrb5support.so.0 (0x00007ff226c04000)
/etc/httpd/modules/mod_ssl.so
libkrb5.so.3 => /lib64/libkrb5.so.3 (0x00007f0c0c7fa000)
libkrb5support.so.0 => /lib64/libkrb5support.so.0 (0x00007f0c0bf9d000)
Any thoughts on a potential solution or cause?
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