segfault in check_connection #859
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Courtesy of @d-m-u, a backtrace: |
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Courtesy of @d-m-u, a backtrace: |
We're seeing what appears to be a segfault in the
check_connectionmethod, i.e.rb_git_remote_check_connection. The error ischeck_connection munmap_chunk(): invalid pointer. Near as I can tell this happens when you try free something that wasn't malloc'ed.https://github.com/libgit2/rugged/blob/master/ext/rugged/rugged_remote.c#L503-L539
Looking at that can we confirm that the
xfreeis only freeing things that were xmalloced? Also, should the code only callgit_remote_disconnectif the connection actually happened?Unfortunately, we have not been able to duplicate this in a standalone script. It seems to happen when the network goes down after previously successful connections.
Here is the actual code that triggered it:
https://github.com/ManageIQ/manageiq/pull/20645/files#diff-d54d482e470404136b4b893c60065b5d743c912652d58d69820d86604e8a8983R261-R268
More information:
https://bugzilla.redhat.com/show_bug.cgi?id=1835226
cc @NickLaMuro, @d-m-u
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