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commit-graph.c: prevent overflow in `write_commit_graph()` 

In a similar spirit as previous commits, ensure that we don't overflow
when trying to read an existing OID while writing a new commit-graph.

Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
maint
Taylor Blau 2023-07-12 19:38:16 -04:00 committed by Junio C Hamano
parent d76e0a744d
commit 588af1bfd3
1 changed files with 1 additions and 1 deletions
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commit-graph.c
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@ -2454,7 +2454,7 @@ int write_commit_graph(struct object_directory *odb,
struct commit_graph *g = ctx->r->objects->commit_graph;
for (i = 0; i < g->num_commits; i++) {
struct object_id oid;
oidread(&oid, g->chunk_oid_lookup + g->hash_len * i);
oidread(&oid, g->chunk_oid_lookup + st_mult(g->hash_len, i));
oid_array_append(&ctx->oids, &oid);
}
}