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authorPatrick Steinhardt <ps@pks.im>2016-03-31 11:32:36 +0200
committerPatrick Steinhardt <ps@pks.im>2016-03-31 11:34:03 +0200
commit6045afd39807b320013067858ed37adee9c0fc0d (patch)
treec738179a3528e8ec17e2a2183bb390e452b5f112
parent1bce14874f1febe8c11bb2691210dd3c5eb6ca53 (diff)
downloadlibgit2-6045afd39807b320013067858ed37adee9c0fc0d.tar.gz
xdiff/xprepare: fix a memory leak
The xdl_prepare_env() function may initialise an xdlclassifier_t data structure via xdl_init_classifier(), which allocates memory to several fields, for example 'rchash', 'rcrecs' and 'ncha'. If this function later exits due to the failure of xdl_optimize_ctxs(), then this xdlclassifier_t structure, and the memory allocated to it, is not cleaned up. In order to fix the memory leak, insert a call to xdl_free_classifier() before returning. This patch was originally written by Ramsay Jones (see commit 87f16258367a3b9a62663b11f898a4a6f3c19d31 in git.git).
-rw-r--r--src/xdiff/xprepare.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/xdiff/xprepare.c b/src/xdiff/xprepare.c
index ffb70df49..3183d50eb 100644
--- a/src/xdiff/xprepare.c
+++ b/src/xdiff/xprepare.c
@@ -301,6 +301,7 @@ int xdl_prepare_env(mmfile_t *mf1, mmfile_t *mf2, xpparam_t const *xpp,
xdl_free_ctx(&xe->xdf2);
xdl_free_ctx(&xe->xdf1);
+ xdl_free_classifier(&cf);
return -1;
}