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Merge branch 'ds/find-unique-abbrev-optim'
While finding unique object name abbreviation, the code may accidentally have read beyond the end of the array of object names in a pack. * ds/find-unique-abbrev-optim: sha1_name: fix uninitialized memory errors
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commit
7519a60ffa
14
sha1_name.c
14
sha1_name.c
@ -542,20 +542,20 @@ static void find_abbrev_len_for_pack(struct packed_git *p,
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/*
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/*
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* first is now the position in the packfile where we would insert
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* first is now the position in the packfile where we would insert
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* mad->hash if it does not exist (or the position of mad->hash if
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* mad->hash if it does not exist (or the position of mad->hash if
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* it does exist). Hence, we consider a maximum of three objects
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* it does exist). Hence, we consider a maximum of two objects
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* nearby for the abbreviation length.
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* nearby for the abbreviation length.
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*/
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*/
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mad->init_len = 0;
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mad->init_len = 0;
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if (!match) {
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if (!match) {
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nth_packed_object_oid(&oid, p, first);
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if (nth_packed_object_oid(&oid, p, first))
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extend_abbrev_len(&oid, mad);
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extend_abbrev_len(&oid, mad);
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} else if (first < num - 1) {
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} else if (first < num - 1) {
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nth_packed_object_oid(&oid, p, first + 1);
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if (nth_packed_object_oid(&oid, p, first + 1))
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extend_abbrev_len(&oid, mad);
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extend_abbrev_len(&oid, mad);
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}
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}
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if (first > 0) {
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if (first > 0) {
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nth_packed_object_oid(&oid, p, first - 1);
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if (nth_packed_object_oid(&oid, p, first - 1))
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extend_abbrev_len(&oid, mad);
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extend_abbrev_len(&oid, mad);
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}
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}
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mad->init_len = mad->cur_len;
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mad->init_len = mad->cur_len;
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}
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}
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