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split-index: fix memory leak in move_cache_to_base_index()

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In `move_cache_to_base_index()` we move the index cache of the main
index into the split index, which is used when writing a shared index.
But we don't release the old split index base in case we already had a
split index before this operation, which can thus leak memory.

Plug the leak by releasing the previous base.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Patrick Steinhardt
2024-11-20 14:39:41 +01:00
committed by Junio C Hamano
parent 1dd7c32daa
commit a5408d1820
2 changed files with 6 additions and 1 deletions
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6
split-index.c
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@ -97,7 +97,11 @@ void move_cache_to_base_index(struct index_state *istate)
mem_pool_combine(istate->ce_mem_pool, istate->split_index->base->ce_mem_pool);
}
ALLOC_ARRAY(si->base, 1);
if (si->base)
release_index(si->base);
else
ALLOC_ARRAY(si->base, 1);
index_state_init(si->base, istate->repo);
si->base->version = istate->version;
/* zero timestamp disables racy test in ce_write_index() */