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[v2,1/3] midx: fix broken free() in close_midx()

Message ID 8bd672fe26574972043bc7e041e693c3e17d20a1.1539365654.git.gitgitgadget@gmail.com (mailing list archive)
State New, archived
Headers show
Series Add GIT_TEST_MULTI_PACK_INDEX environment variable | expand

Commit Message

Linus Arver via GitGitGadget Oct. 12, 2018, 5:34 p.m. UTC 
From: Derrick Stolee <dstolee@microsoft.com>

When closing a multi-pack-index, we intend to close each pack-file
and free the struct packed_git that represents it. However, this
line was previously freeing the array of pointers, not the
pointer itself. This leads to a double-free issue.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
---
 midx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/midx.c b/midx.c
index 713d6f9dde..bf1f511862 100644
--- a/midx.c
+++ b/midx.c
@@ -186,7 +186,7 @@  static void close_midx(struct multi_pack_index *m)
 	for (i = 0; i < m->num_packs; i++) {
 		if (m->packs[i]) {
 			close_pack(m->packs[i]);
-			free(m->packs);
+			free(m->packs[i]);
 		}
 	}
 	FREE_AND_NULL(m->packs);