[PATCH 1/1] pathspec: fix memleak

From: Anthony Delannoy <anthony.2lannoy@gmail.com>
Date: Aug 12, 2022, 08:17 UTC
Message-ID: <20220812081744.456280-2-anthony.2lannoy@gmail.com>
In-Reply-To: <20220812081744.456280-1-anthony.2lannoy@gmail.com>

Fix a memory leak occuring in case of pathspec copy in preload_index.

Direct leak of 8 byte(s) in 8 object(s) allocated from:
    #0 0x7f0a353ead47 in __interceptor_malloc (/usr/lib/gcc/x86_64-pc-linux-gnu/11.3.0/libasan.so.6+0xb5d47)
    #1 0x55750995e840 in do_xmalloc /home/anthony/src/c/git/wrapper.c:51
    #2 0x55750995e840 in xmalloc /home/anthony/src/c/git/wrapper.c:72
    #3 0x55750970f824 in copy_pathspec /home/anthony/src/c/git/pathspec.c:684
    #4 0x557509717278 in preload_index /home/anthony/src/c/git/preload-index.c:135
    #5 0x55750975f21e in refresh_index /home/anthony/src/c/git/read-cache.c:1633
    #6 0x55750915b926 in cmd_status builtin/commit.c:1547
    #7 0x5575090e1680 in run_builtin /home/anthony/src/c/git/git.c:466
    #8 0x5575090e1680 in handle_builtin /home/anthony/src/c/git/git.c:720
    #9 0x5575090e284a in run_argv /home/anthony/src/c/git/git.c:787
    #10 0x5575090e284a in cmd_main /home/anthony/src/c/git/git.c:920
    #11 0x5575090dbf82 in main /home/anthony/src/c/git/common-main.c:56
    #12 0x7f0a348230ab  (/lib64/libc.so.6+0x290ab)

Signed-off-by: Anthony Delannoy <anthony.2lannoy@gmail.com>
---
 preload-index.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/preload-index.c b/preload-index.c
index e5529a5863..a05f4d1390 100644
--- a/preload-index.c
+++ b/preload-index.c
@@ -148,6 +148,9 @@ void preload_index(struct index_state *index,
 		if (pthread_join(p->pthread, NULL))
 			die("unable to join threaded lstat");
 		t2_sum_lstat += p->t2_nr_lstat;
+
+		if (pathspec)
+			free(p->pathspec.items);
 	}
 	stop_progress(&pd.progress);

-- 
2.35.1