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https://issues.apache.org/jira/browse/SVN-4782?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Daniel Sahlberg closed SVN-4782.
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Didn't check actual version including this fix but it has surely been released.
Closing.
> Using (const char*)1 in Apache HTTP server modules as value for r->notes
> cause httpd to crash
> ---------------------------------------------------------------------------------------------
>
> Key: SVN-4782
> URL: https://issues.apache.org/jira/browse/SVN-4782
> Project: Subversion
> Issue Type: Bug
> Affects Versions: 1.9.x, trunk, 1.10.x, 1.11.x
> Environment: All environments
> Reporter: Ruediger Pluem
> Priority: Major
> Labels: patch
> Fix For: 1.14.0
>
> Attachments: notes_fix.diff
>
>
> *mod_authz_svn.c* and *mod_dav_svn.c* add keys to *r->notes* to memorize
> boolean states (*FORCE_AUTHN_NOTE*, *IN_SOME_AUTHN_NOTE*,
> *authz_svn-anon-ok*, *NO_MAP_TO_STORAGE_NOTE*). They use _(const char*)1_ as
> values for the keys. This causes any call to *apr_table_clone* for *r->notes*
> to crash with a SEGFAULT, because _(const char*)1_ is an invalid address.
> *mod_http2* in httpd calls *apr_table_clone* for *r->notes* and hence the
> httpd process crashes. The attached patch (against trunk) replaces the value
> of _(const char*)1_ in these cases with a value of _"1"_.
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