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Ahmed Rabea
7f98abc730
win32_joiner() always emits a trailing '\' when file_split->dir
is present, even if file_split->file is NULL. The previous length
calculation only reserved that byte when file_split->file was also
non-NULL, which could cause a one-byte overflow.
Resolves: https://github.com/openssl/openssl/issues/31260
Fixes: cbecb3ac37 "There's an ongoing project to bring some kind of path selection mechanism to the ENGINE framework. This means there there are going to be new functionality for the DSO part, and ultimately some way of merging two file specifications together.
CLA: trivial
Reviewed-by: Neil Horman <nhorman@openssl.org>
Reviewed-by: Saša Nedvědický <sashan@openssl.org>
Reviewed-by: Eugene Syromiatnikov <esyr@openssl.org>
MergeDate: Tue May 26 09:36:02 2026
(Merged from https://github.com/openssl/openssl/pull/31266)