pidgin/pidgin

Fix an out of bounds write in purple_markup_linkify.
release-2.x.y
2021-07-08, Gary Kramlich
71df0a528a5a
Fix an out of bounds write in purple_markup_linkify.

This was found by Thomas Roth , Dominik Maier
, and Fabian Freyer .

Testing Done:
Compiled and ran the `purple_markup_linkify_fuzzer` from the google oss-fuzz project to verify the fix.

Reviewed at https://reviews.imfreedom.org/r/781/
/** @page cipher-signals Cipher Signals
@signals
@signal cipher-added
@signal cipher-removed
@endsignals
@see cipher.h
<hr>
@signaldef cipher-added
@signalproto
void (*cipher_added)(PurpleCipher *cipher);
@endsignalproto
@signaldesc
Emitted when a cipher is added.
@param cipher The cipher that was added.
@endsignaldef
@signaldef cipher-removed
@signalproto
void (*cipher_removed)(PurpleCipher *cipher);
@endsignalproto
@signaldesc
Emitted when a cipher is removed.
@param cipher The cipher that was removed.
@endsignaldef
*/
// vim: syntax=c.doxygen tw=75 et