Test t2021-checkout-overwrite.sh reveals a segfault in 'git add' on a
case-insensitive file system when git is compiled with XMALLOC_POISON
defined. The reason is that 2548183b (fix phantom untracked files when
core.ignorecase is set) added a new member dir_next to struct cache_entry,
but forgot to initialize it in all cases.
Signed-off-by: Johannes Sixt <j6t@xxxxxxxx>
---
You can also insert git config core.ignorecase true before the first
test script in t2021 to see the segfault.
I actually found the crash with an MSVC debug build, which has something
like XMALLOC_POISON built-in.
name-hash.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/name-hash.c b/name-hash.c
index 225dd76..d8d25c2 100644
--- a/name-hash.c
+++ b/name-hash.c
@@ -74,7 +74,7 @@ static void hash_index_entry(struct index_state *istate, struct cache_entry *ce)
if (ce->ce_flags & CE_HASHED)
return;
ce->ce_flags |= CE_HASHED;
- ce->next = NULL;
+ ce->next = ce->dir_next = NULL;
hash = hash_name(ce->name, ce_namelen(ce));
pos = insert_hash(hash, ce, &istate->name_hash);
if (pos) {
--
1.7.7.1.586.ga0958b
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